diff options
Diffstat (limited to 'avserver.c')
| -rw-r--r-- | avserver.c | 4685 |
1 files changed, 0 insertions, 4685 deletions
diff --git a/avserver.c b/avserver.c deleted file mode 100644 index 56bcda9d4d..0000000000 --- a/avserver.c +++ /dev/null @@ -1,4685 +0,0 @@ -/* - * Multiple format streaming server - * Copyright (c) 2000, 2001, 2002 Fabrice Bellard - * - * This file is part of Libav. - * - * Libav is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * Libav is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with Libav; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include "config.h" -#if !HAVE_CLOSESOCKET -#define closesocket close -#endif -#include <string.h> -#include <stdlib.h> -#include <stdio.h> -#include "libavformat/avformat.h" -// FIXME those are internal headers, avserver _really_ shouldn't use them -#include "libavformat/ffm.h" -#include "libavformat/network.h" -#include "libavformat/os_support.h" -#include "libavformat/rtpdec.h" -#include "libavformat/rtpproto.h" -#include "libavformat/rtsp.h" -#include "libavformat/avio_internal.h" -#include "libavformat/internal.h" -#include "libavformat/url.h" - -#include "libavutil/avstring.h" -#include "libavutil/lfg.h" -#include "libavutil/dict.h" -#include "libavutil/intreadwrite.h" -#include "libavutil/mathematics.h" -#include "libavutil/random_seed.h" -#include "libavutil/parseutils.h" -#include "libavutil/opt.h" -#include "libavutil/time.h" - -#include <stdarg.h> -#include <unistd.h> -#include <fcntl.h> -#include <sys/ioctl.h> -#if HAVE_POLL_H -#include <poll.h> -#endif -#include <errno.h> -#include <time.h> -#include <sys/wait.h> -#include <signal.h> - -#include "cmdutils.h" - -const char program_name[] = "avserver"; -const int program_birth_year = 2000; - -static const OptionDef options[]; - -enum HTTPState { - HTTPSTATE_WAIT_REQUEST, - HTTPSTATE_SEND_HEADER, - HTTPSTATE_SEND_DATA_HEADER, - HTTPSTATE_SEND_DATA, /* sending TCP or UDP data */ - HTTPSTATE_SEND_DATA_TRAILER, - HTTPSTATE_RECEIVE_DATA, - HTTPSTATE_WAIT_FEED, /* wait for data from the feed */ - HTTPSTATE_READY, - - RTSPSTATE_WAIT_REQUEST, - RTSPSTATE_SEND_REPLY, - RTSPSTATE_SEND_PACKET, -}; - -static const char *http_state[] = { - "HTTP_WAIT_REQUEST", - "HTTP_SEND_HEADER", - - "SEND_DATA_HEADER", - "SEND_DATA", - "SEND_DATA_TRAILER", - "RECEIVE_DATA", - "WAIT_FEED", - "READY", - - "RTSP_WAIT_REQUEST", - "RTSP_SEND_REPLY", - "RTSP_SEND_PACKET", -}; - -#define MAX_STREAMS 20 - -#define IOBUFFER_INIT_SIZE 8192 - -/* timeouts are in ms */ -#define HTTP_REQUEST_TIMEOUT (15 * 1000) -#define RTSP_REQUEST_TIMEOUT (3600 * 24 * 1000) - -#define SYNC_TIMEOUT (10 * 1000) - -typedef struct RTSPActionServerSetup { - uint32_t ipaddr; - char transport_option[512]; -} RTSPActionServerSetup; - -typedef struct { - int64_t count1, count2; - int64_t time1, time2; -} DataRateData; - -/* context associated with one connection */ -typedef struct HTTPContext { - enum HTTPState state; - int fd; /* socket file descriptor */ - struct sockaddr_in from_addr; /* origin */ - struct pollfd *poll_entry; /* used when polling */ - int64_t timeout; - uint8_t *buffer_ptr, *buffer_end; - int http_error; - int post; - int chunked_encoding; - int chunk_size; /* 0 if it needs to be read */ - struct HTTPContext *next; - int got_key_frame; /* stream 0 => 1, stream 1 => 2, stream 2=> 4 */ - int64_t data_count; - /* feed input */ - int feed_fd; - /* input format handling */ - AVFormatContext *fmt_in; - int64_t start_time; /* In milliseconds - this wraps fairly often */ - int64_t first_pts; /* initial pts value */ - int64_t cur_pts; /* current pts value from the stream in us */ - int64_t cur_frame_duration; /* duration of the current frame in us */ - int cur_frame_bytes; /* output frame size, needed to compute - the time at which we send each - packet */ - int pts_stream_index; /* stream we choose as clock reference */ - int64_t cur_clock; /* current clock reference value in us */ - /* output format handling */ - struct FFStream *stream; - /* -1 is invalid stream */ - int feed_streams[MAX_STREAMS]; /* index of streams in the feed */ - int switch_feed_streams[MAX_STREAMS]; /* index of streams in the feed */ - int switch_pending; - AVFormatContext fmt_ctx; /* instance of FFStream for one user */ - int last_packet_sent; /* true if last data packet was sent */ - int suppress_log; - DataRateData datarate; - int wmp_client_id; - char protocol[16]; - char method[16]; - char url[128]; - int buffer_size; - uint8_t *buffer; - int is_packetized; /* if true, the stream is packetized */ - int packet_stream_index; /* current stream for output in state machine */ - - /* RTSP state specific */ - uint8_t *pb_buffer; /* XXX: use that in all the code */ - AVIOContext *pb; - int seq; /* RTSP sequence number */ - - /* RTP state specific */ - enum RTSPLowerTransport rtp_protocol; - char session_id[32]; /* session id */ - AVFormatContext *rtp_ctx[MAX_STREAMS]; - - /* RTP/UDP specific */ - URLContext *rtp_handles[MAX_STREAMS]; - - /* RTP/TCP specific */ - struct HTTPContext *rtsp_c; - uint8_t *packet_buffer, *packet_buffer_ptr, *packet_buffer_end; -} HTTPContext; - -/* each generated stream is described here */ -enum StreamType { - STREAM_TYPE_LIVE, - STREAM_TYPE_STATUS, - STREAM_TYPE_REDIRECT, -}; - -enum IPAddressAction { - IP_ALLOW = 1, - IP_DENY, -}; - -typedef struct IPAddressACL { - struct IPAddressACL *next; - enum IPAddressAction action; - /* These are in host order */ - struct in_addr first; - struct in_addr last; -} IPAddressACL; - -/* description of each stream of the avserver.conf file */ -typedef struct FFStream { - enum StreamType stream_type; - char filename[1024]; /* stream filename */ - struct FFStream *feed; /* feed we are using (can be null if - coming from file) */ - AVDictionary *in_opts; /* input parameters */ - AVInputFormat *ifmt; /* if non NULL, force input format */ - AVOutputFormat *fmt; - IPAddressACL *acl; - char dynamic_acl[1024]; - int nb_streams; - int prebuffer; /* Number of millseconds early to start */ - int64_t max_time; /* Number of milliseconds to run */ - int send_on_key; - AVStream *streams[MAX_STREAMS]; - int feed_streams[MAX_STREAMS]; /* index of streams in the feed */ - char feed_filename[1024]; /* file name of the feed storage, or - input file name for a stream */ - char author[512]; - char title[512]; - char copyright[512]; - char comment[512]; - pid_t pid; /* of avconv process */ - time_t pid_start; /* of avconv process */ - char **child_argv; - struct FFStream *next; - unsigned bandwidth; /* bandwidth, in kbits/s */ - /* RTSP options */ - char *rtsp_option; - /* multicast specific */ - int is_multicast; - struct in_addr multicast_ip; - int multicast_port; /* first port used for multicast */ - int multicast_ttl; - int loop; /* if true, send the stream in loops (only meaningful if file) */ - - /* feed specific */ - int feed_opened; /* true if someone is writing to the feed */ - int is_feed; /* true if it is a feed */ - int readonly; /* True if writing is prohibited to the file */ - int truncate; /* True if feeder connection truncate the feed file */ - int conns_served; - int64_t bytes_served; - int64_t feed_max_size; /* maximum storage size, zero means unlimited */ - int64_t feed_write_index; /* current write position in feed (it wraps around) */ - int64_t feed_size; /* current size of feed */ - struct FFStream *next_feed; -} FFStream; - -typedef struct FeedData { - long long data_count; - float avg_frame_size; /* frame size averaged over last frames with exponential mean */ -} FeedData; - -static struct sockaddr_in my_http_addr; -static struct sockaddr_in my_rtsp_addr; - -static char logfilename[1024]; -static HTTPContext *first_http_ctx; -static FFStream *first_feed; /* contains only feeds */ -static FFStream *first_stream; /* contains all streams, including feeds */ - -static void new_connection(int server_fd, int is_rtsp); -static void close_connection(HTTPContext *c); - -/* HTTP handling */ -static int handle_connection(HTTPContext *c); -static int http_parse_request(HTTPContext *c); -static int http_send_data(HTTPContext *c); -static void compute_status(HTTPContext *c); -static int open_input_stream(HTTPContext *c, const char *info); -static int http_start_receive_data(HTTPContext *c); -static int http_receive_data(HTTPContext *c); - -/* RTSP handling */ -static int rtsp_parse_request(HTTPContext *c); -static void rtsp_cmd_describe(HTTPContext *c, const char *url); -static void rtsp_cmd_options(HTTPContext *c, const char *url); -static void rtsp_cmd_setup(HTTPContext *c, const char *url, RTSPMessageHeader *h); -static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPMessageHeader *h); -static void rtsp_cmd_pause(HTTPContext *c, const char *url, RTSPMessageHeader *h); -static void rtsp_cmd_teardown(HTTPContext *c, const char *url, RTSPMessageHeader *h); - -/* SDP handling */ -static int prepare_sdp_description(FFStream *stream, uint8_t **pbuffer, - struct in_addr my_ip); - -/* RTP handling */ -static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr, - FFStream *stream, const char *session_id, - enum RTSPLowerTransport rtp_protocol); -static int rtp_new_av_stream(HTTPContext *c, - int stream_index, struct sockaddr_in *dest_addr, - HTTPContext *rtsp_c); - -static const char *my_program_name; - -static const char *config_filename; - -static int avserver_debug; -static int no_launch; -static int need_to_start_children; - -/* maximum number of simultaneous HTTP connections */ -static unsigned int nb_max_http_connections = 2000; -static unsigned int nb_max_connections = 5; -static unsigned int nb_connections; - -static uint64_t max_bandwidth = 1000; -static uint64_t current_bandwidth; - -static int64_t cur_time; // Making this global saves on passing it around everywhere - -static AVLFG random_state; - -static FILE *logfile = NULL; - -static int64_t ffm_read_write_index(int fd) -{ - uint8_t buf[8]; - - lseek(fd, 8, SEEK_SET); - if (read(fd, buf, 8) != 8) - return AVERROR(EIO); - return AV_RB64(buf); -} - -static int ffm_write_write_index(int fd, int64_t pos) -{ - uint8_t buf[8]; - int i; - - for(i=0;i<8;i++) - buf[i] = (pos >> (56 - i * 8)) & 0xff; - lseek(fd, 8, SEEK_SET); - if (write(fd, buf, 8) != 8) - return AVERROR(EIO); - return 8; -} - -static void ffm_set_write_index(AVFormatContext *s, int64_t pos, - int64_t file_size) -{ - FFMContext *ffm = s->priv_data; - ffm->write_index = pos; - ffm->file_size = file_size; -} - -/* FIXME: make avserver work with IPv6 */ -/* resolve host with also IP address parsing */ -static int resolve_host(struct in_addr *sin_addr, const char *hostname) -{ - - if (!ff_inet_aton(hostname, sin_addr)) { -#if HAVE_GETADDRINFO - struct addrinfo *ai, *cur; - struct addrinfo hints = { 0 }; - hints.ai_family = AF_INET; - if (getaddrinfo(hostname, NULL, &hints, &ai)) - return -1; - /* getaddrinfo returns a linked list of addrinfo structs. - * Even if we set ai_family = AF_INET above, make sure - * that the returned one actually is of the correct type. */ - for (cur = ai; cur; cur = cur->ai_next) { - if (cur->ai_family == AF_INET) { - *sin_addr = ((struct sockaddr_in *)cur->ai_addr)->sin_addr; - freeaddrinfo(ai); - return 0; - } - } - freeaddrinfo(ai); - return -1; -#else - struct hostent *hp; - hp = gethostbyname(hostname); - if (!hp) - return -1; - memcpy(sin_addr, hp->h_addr_list[0], sizeof(struct in_addr)); -#endif - } - return 0; -} - -static char *ctime1(char *buf2) -{ - time_t ti; - char *p; - - ti = time(NULL); - p = ctime(&ti); - strcpy(buf2, p); - p = buf2 + strlen(p) - 1; - if (*p == '\n') - *p = '\0'; - return buf2; -} - -static void http_vlog(const char *fmt, va_list vargs) -{ - static int print_prefix = 1; - if (logfile) { - if (print_prefix) { - char buf[32]; - ctime1(buf); - fprintf(logfile, "%s ", buf); - } - print_prefix = strstr(fmt, "\n") != NULL; - vfprintf(logfile, fmt, vargs); - fflush(logfile); - } -} - -#ifdef __GNUC__ -__attribute__ ((format (printf, 1, 2))) -#endif -static void http_log(const char *fmt, ...) -{ - va_list vargs; - va_start(vargs, fmt); - http_vlog(fmt, vargs); - va_end(vargs); -} - -static void http_av_log(void *ptr, int level, const char *fmt, va_list vargs) -{ - static int print_prefix = 1; - AVClass *avc = ptr ? *(AVClass**)ptr : NULL; - if (level > av_log_get_level()) - return; - if (print_prefix && avc) - http_log("[%s @ %p]", avc->item_name(ptr), ptr); - print_prefix = strstr(fmt, "\n") != NULL; - http_vlog(fmt, vargs); -} - -static void log_connection(HTTPContext *c) -{ - if (c->suppress_log) - return; - - http_log("%s - - [%s] \"%s %s\" %d %"PRId64"\n", - inet_ntoa(c->from_addr.sin_addr), c->method, c->url, - c->protocol, (c->http_error ? c->http_error : 200), c->data_count); -} - -static void update_datarate(DataRateData *drd, int64_t count) -{ - if (!drd->time1 && !drd->count1) { - drd->time1 = drd->time2 = cur_time; - drd->count1 = drd->count2 = count; - } else if (cur_time - drd->time2 > 5000) { - drd->time1 = drd->time2; - drd->count1 = drd->count2; - drd->time2 = cur_time; - drd->count2 = count; - } -} - -/* In bytes per second */ -static int compute_datarate(DataRateData *drd, int64_t count) -{ - if (cur_time == drd->time1) - return 0; - - return ((count - drd->count1) * 1000) / (cur_time - drd->time1); -} - - -static void start_children(FFStream *feed) -{ - if (no_launch) - return; - - for (; feed; feed = feed->next) { - if (feed->child_argv && !feed->pid) { - feed->pid_start = time(0); - - feed->pid = fork(); - - if (feed->pid < 0) { - http_log("Unable to create children\n"); - exit(1); - } - if (!feed->pid) { - /* In child */ - char pathname[1024]; - char *slash; - int i; - - av_strlcpy(pathname, my_program_name, sizeof(pathname)); - - slash = strrchr(pathname, '/'); - if (!slash) - slash = pathname; - else - slash++; - strcpy(slash, "avconv"); - - http_log("Launch command line: "); - http_log("%s ", pathname); - for (i = 1; feed->child_argv[i] && feed->child_argv[i][0]; i++) - http_log("%s ", feed->child_argv[i]); - http_log("\n"); - - for (i = 3; i < 256; i++) - close(i); - - if (!avserver_debug) { - if (!freopen("/dev/null", "r", stdin)) - http_log("failed to redirect STDIN to /dev/null\n;"); - if (!freopen("/dev/null", "w", stdout)) - http_log("failed to redirect STDOUT to /dev/null\n;"); - if (!freopen("/dev/null", "w", stderr)) - http_log("failed to redirect STDERR to /dev/null\n;"); - } - - signal(SIGPIPE, SIG_DFL); - - execvp(pathname, feed->child_argv); - - _exit(1); - } - } - } -} - -/* open a listening socket */ -static int socket_open_listen(struct sockaddr_in *my_addr) -{ - int server_fd, tmp; - - server_fd = socket(AF_INET,SOCK_STREAM,0); - if (server_fd < 0) { - perror ("socket"); - return -1; - } - - tmp = 1; - setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR, &tmp, sizeof(tmp)); - - my_addr->sin_family = AF_INET; - if (bind (server_fd, (struct sockaddr *) my_addr, sizeof (*my_addr)) < 0) { - char bindmsg[32]; - snprintf(bindmsg, sizeof(bindmsg), "bind(port %d)", ntohs(my_addr->sin_port)); - perror (bindmsg); - closesocket(server_fd); - return -1; - } - - if (listen (server_fd, 5) < 0) { - perror ("listen"); - closesocket(server_fd); - return -1; - } - ff_socket_nonblock(server_fd, 1); - - return server_fd; -} - -/* start all multicast streams */ -static void start_multicast(void) -{ - FFStream *stream; - char session_id[32]; - HTTPContext *rtp_c; - struct sockaddr_in dest_addr; - int default_port, stream_index; - - default_port = 6000; - for(stream = first_stream; stream != NULL; stream = stream->next) { - if (stream->is_multicast) { - /* open the RTP connection */ - snprintf(session_id, sizeof(session_id), "%08x%08x", - av_lfg_get(&random_state), av_lfg_get(&random_state)); - - /* choose a port if none given */ - if (stream->multicast_port == 0) { - stream->multicast_port = default_port; - default_port += 100; - } - - dest_addr.sin_family = AF_INET; - dest_addr.sin_addr = stream->multicast_ip; - dest_addr.sin_port = htons(stream->multicast_port); - - rtp_c = rtp_new_connection(&dest_addr, stream, session_id, - RTSP_LOWER_TRANSPORT_UDP_MULTICAST); - if (!rtp_c) - continue; - - if (open_input_stream(rtp_c, "") < 0) { - http_log("Could not open input stream for stream '%s'\n", - stream->filename); - continue; - } - - /* open each RTP stream */ - for(stream_index = 0; stream_index < stream->nb_streams; - stream_index++) { - dest_addr.sin_port = htons(stream->multicast_port + - 2 * stream_index); - if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, NULL) < 0) { - http_log("Could not open output stream '%s/streamid=%d'\n", - stream->filename, stream_index); - exit(1); - } - } - - /* change state to send data */ - rtp_c->state = HTTPSTATE_SEND_DATA; - } - } -} - -/* main loop of the http server */ -static int http_server(void) -{ - int server_fd = 0, rtsp_server_fd = 0; - int ret, delay, delay1; - struct pollfd *poll_table, *poll_entry; - HTTPContext *c, *c_next; - - if(!(poll_table = av_mallocz((nb_max_http_connections + 2)*sizeof(*poll_table)))) { - http_log("Impossible to allocate a poll table handling %d connections.\n", nb_max_http_connections); - return -1; - } - - if (my_http_addr.sin_port) { - server_fd = socket_open_listen(&my_http_addr); - if (server_fd < 0) - return -1; - } - - if (my_rtsp_addr.sin_port) { - rtsp_server_fd = socket_open_listen(&my_rtsp_addr); - if (rtsp_server_fd < 0) - return -1; - } - - if (!rtsp_server_fd && !server_fd) { - http_log("HTTP and RTSP disabled.\n"); - return -1; - } - - http_log("AVserver started.\n"); - - start_children(first_feed); - - start_multicast(); - - for(;;) { - poll_entry = poll_table; - if (server_fd) { - poll_entry->fd = server_fd; - poll_entry->events = POLLIN; - poll_entry++; - } - if (rtsp_server_fd) { - poll_entry->fd = rtsp_server_fd; - poll_entry->events = POLLIN; - poll_entry++; - } - - /* wait for events on each HTTP handle */ - c = first_http_ctx; - delay = 1000; - while (c != NULL) { - int fd; - fd = c->fd; - switch(c->state) { - case HTTPSTATE_SEND_HEADER: - case RTSPSTATE_SEND_REPLY: - case RTSPSTATE_SEND_PACKET: - c->poll_entry = poll_entry; - poll_entry->fd = fd; - poll_entry->events = POLLOUT; - poll_entry++; - break; - case HTTPSTATE_SEND_DATA_HEADER: - case HTTPSTATE_SEND_DATA: - case HTTPSTATE_SEND_DATA_TRAILER: - if (!c->is_packetized) { - /* for TCP, we output as much as we can (may need to put a limit) */ - c->poll_entry = poll_entry; - poll_entry->fd = fd; - poll_entry->events = POLLOUT; - poll_entry++; - } else { - /* when avserver is doing the timing, we work by - looking at which packet need to be sent every - 10 ms */ - delay1 = 10; /* one tick wait XXX: 10 ms assumed */ - if (delay1 < delay) - delay = delay1; - } - break; - case HTTPSTATE_WAIT_REQUEST: - case HTTPSTATE_RECEIVE_DATA: - case HTTPSTATE_WAIT_FEED: - case RTSPSTATE_WAIT_REQUEST: - /* need to catch errors */ - c->poll_entry = poll_entry; - poll_entry->fd = fd; - poll_entry->events = POLLIN;/* Maybe this will work */ - poll_entry++; - break; - default: - c->poll_entry = NULL; - break; - } - c = c->next; - } - - /* wait for an event on one connection. We poll at least every - second to handle timeouts */ - do { - ret = poll(poll_table, poll_entry - poll_table, delay); - if (ret < 0 && ff_neterrno() != AVERROR(EAGAIN) && - ff_neterrno() != AVERROR(EINTR)) - return -1; - } while (ret < 0); - - cur_time = av_gettime() / 1000; - - if (need_to_start_children) { - need_to_start_children = 0; - start_children(first_feed); - } - - /* now handle the events */ - for(c = first_http_ctx; c != NULL; c = c_next) { - c_next = c->next; - if (handle_connection(c) < 0) { - /* close and free the connection */ - log_connection(c); - close_connection(c); - } - } - - poll_entry = poll_table; - if (server_fd) { - /* new HTTP connection request ? */ - if (poll_entry->revents & POLLIN) - new_connection(server_fd, 0); - poll_entry++; - } - if (rtsp_server_fd) { - /* new RTSP connection request ? */ - if (poll_entry->revents & POLLIN) - new_connection(rtsp_server_fd, 1); - } - } -} - -/* start waiting for a new HTTP/RTSP request */ -static void start_wait_request(HTTPContext *c, int is_rtsp) -{ - c->buffer_ptr = c->buffer; - c->buffer_end = c->buffer + c->buffer_size - 1; /* leave room for '\0' */ - - if (is_rtsp) { - c->timeout = cur_time + RTSP_REQUEST_TIMEOUT; - c->state = RTSPSTATE_WAIT_REQUEST; - } else { - c->timeout = cur_time + HTTP_REQUEST_TIMEOUT; - c->state = HTTPSTATE_WAIT_REQUEST; - } -} - -static void http_send_too_busy_reply(int fd) -{ - char buffer[300]; - int len = snprintf(buffer, sizeof(buffer), - "HTTP/1.0 503 Server too busy\r\n" - "Content-type: text/html\r\n" - "\r\n" - "<html><head><title>Too busy</title></head><body>\r\n" - "<p>The server is too busy to serve your request at this time.</p>\r\n" - "<p>The number of current connections is %d, and this exceeds the limit of %d.</p>\r\n" - "</body></html>\r\n", - nb_connections, nb_max_connections); - send(fd, buffer, len, 0); -} - - -static void new_connection(int server_fd, int is_rtsp) -{ - struct sockaddr_in from_addr; - socklen_t len; - int fd; - HTTPContext *c = NULL; - - len = sizeof(from_addr); - fd = accept(server_fd, (struct sockaddr *)&from_addr, - &len); - if (fd < 0) { - http_log("error during accept %s\n", strerror(errno)); - return; - } - ff_socket_nonblock(fd, 1); - - if (nb_connections >= nb_max_connections) { - http_send_too_busy_reply(fd); - goto fail; - } - - /* add a new connection */ - c = av_mallocz(sizeof(HTTPContext)); - if (!c) - goto fail; - - c->fd = fd; - c->poll_entry = NULL; - c->from_addr = from_addr; - c->buffer_size = IOBUFFER_INIT_SIZE; - c->buffer = av_malloc(c->buffer_size); - if (!c->buffer) - goto fail; - - c->next = first_http_ctx; - first_http_ctx = c; - nb_connections++; - - start_wait_request(c, is_rtsp); - - return; - - fail: - if (c) { - av_free(c->buffer); - av_free(c); - } - closesocket(fd); -} - -static void close_connection(HTTPContext *c) -{ - HTTPContext **cp, *c1; - int i, nb_streams; - AVFormatContext *ctx; - URLContext *h; - AVStream *st; - - /* remove connection from list */ - cp = &first_http_ctx; - while ((*cp) != NULL) { - c1 = *cp; - if (c1 == c) - *cp = c->next; - else - cp = &c1->next; - } - - /* remove references, if any (XXX: do it faster) */ - for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) { - if (c1->rtsp_c == c) - c1->rtsp_c = NULL; - } - - /* remove connection associated resources */ - if (c->fd >= 0) - closesocket(c->fd); - if (c->fmt_in) { - /* close each frame parser */ - for(i=0;i<c->fmt_in->nb_streams;i++) { - st = c->fmt_in->streams[i]; - if (st->codec->codec) - avcodec_close(st->codec); - } - avformat_close_input(&c->fmt_in); - } - - /* free RTP output streams if any */ - nb_streams = 0; - if (c->stream) - nb_streams = c->stream->nb_streams; - - for(i=0;i<nb_streams;i++) { - ctx = c->rtp_ctx[i]; - if (ctx) { - av_write_trailer(ctx); - av_dict_free(&ctx->metadata); - av_free(ctx->streams[0]); - av_free(ctx); - } - h = c->rtp_handles[i]; - if (h) - ffurl_close(h); - } - - ctx = &c->fmt_ctx; - - if (!c->last_packet_sent && c->state == HTTPSTATE_SEND_DATA_TRAILER) { - if (ctx->oformat) { - /* prepare header */ - if (avio_open_dyn_buf(&ctx->pb) >= 0) { - av_write_trailer(ctx); - av_freep(&c->pb_buffer); - avio_close_dyn_buf(ctx->pb, &c->pb_buffer); - } - } - } - - for(i=0; i<ctx->nb_streams; i++) - av_free(ctx->streams[i]); - - if (c->stream && !c->post && c->stream->stream_type == STREAM_TYPE_LIVE) - current_bandwidth -= c->stream->bandwidth; - - /* signal that there is no feed if we are the feeder socket */ - if (c->state == HTTPSTATE_RECEIVE_DATA && c->stream) { - c->stream->feed_opened = 0; - close(c->feed_fd); - } - - av_freep(&c->pb_buffer); - av_freep(&c->packet_buffer); - av_free(c->buffer); - av_free(c); - nb_connections--; -} - -static int handle_connection(HTTPContext *c) -{ - int len, ret; - - switch(c->state) { - case HTTPSTATE_WAIT_REQUEST: - case RTSPSTATE_WAIT_REQUEST: - /* timeout ? */ - if ((c->timeout - cur_time) < 0) - return -1; - if (c->poll_entry->revents & (POLLERR | POLLHUP)) - return -1; - - /* no need to read if no events */ - if (!(c->poll_entry->revents & POLLIN)) - return 0; - /* read the data */ - read_loop: - len = recv(c->fd, c->buffer_ptr, 1, 0); - if (len < 0) { - if (ff_neterrno() != AVERROR(EAGAIN) && - ff_neterrno() != AVERROR(EINTR)) - return -1; - } else if (len == 0) { - return -1; - } else { - /* search for end of request. */ - uint8_t *ptr; - c->buffer_ptr += len; - ptr = c->buffer_ptr; - if ((ptr >= c->buffer + 2 && !memcmp(ptr-2, "\n\n", 2)) || - (ptr >= c->buffer + 4 && !memcmp(ptr-4, "\r\n\r\n", 4))) { - /* request found : parse it and reply */ - if (c->state == HTTPSTATE_WAIT_REQUEST) { - ret = http_parse_request(c); - } else { - ret = rtsp_parse_request(c); - } - if (ret < 0) - return -1; - } else if (ptr >= c->buffer_end) { - /* request too long: cannot do anything */ - return -1; - } else goto read_loop; - } - break; - - case HTTPSTATE_SEND_HEADER: - if (c->poll_entry->revents & (POLLERR | POLLHUP)) - return -1; - - /* no need to write if no events */ - if (!(c->poll_entry->revents & POLLOUT)) - return 0; - len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0); - if (len < 0) { - if (ff_neterrno() != AVERROR(EAGAIN) && - ff_neterrno() != AVERROR(EINTR)) { - /* error : close connection */ - av_freep(&c->pb_buffer); - return -1; - } - } else { - c->buffer_ptr += len; - if (c->stream) - c->stream->bytes_served += len; - c->data_count += len; - if (c->buffer_ptr >= c->buffer_end) { - av_freep(&c->pb_buffer); - /* if error, exit */ - if (c->http_error) - return -1; - /* all the buffer was sent : synchronize to the incoming stream */ - c->state = HTTPSTATE_SEND_DATA_HEADER; - c->buffer_ptr = c->buffer_end = c->buffer; - } - } - break; - - case HTTPSTATE_SEND_DATA: - case HTTPSTATE_SEND_DATA_HEADER: - case HTTPSTATE_SEND_DATA_TRAILER: - /* for packetized output, we consider we can always write (the - input streams sets the speed). It may be better to verify - that we do not rely too much on the kernel queues */ - if (!c->is_packetized) { - if (c->poll_entry->revents & (POLLERR | POLLHUP)) - return -1; - - /* no need to read if no events */ - if (!(c->poll_entry->revents & POLLOUT)) - return 0; - } - if (http_send_data(c) < 0) - return -1; - /* close connection if trailer sent */ - if (c->state == HTTPSTATE_SEND_DATA_TRAILER) - return -1; - break; - case HTTPSTATE_RECEIVE_DATA: - /* no need to read if no events */ - if (c->poll_entry->revents & (POLLERR | POLLHUP)) - return -1; - if (!(c->poll_entry->revents & POLLIN)) - return 0; - if (http_receive_data(c) < 0) - return -1; - break; - case HTTPSTATE_WAIT_FEED: - /* no need to read if no events */ - if (c->poll_entry->revents & (POLLIN | POLLERR | POLLHUP)) - return -1; - - /* nothing to do, we'll be waken up by incoming feed packets */ - break; - - case RTSPSTATE_SEND_REPLY: - if (c->poll_entry->revents & (POLLERR | POLLHUP)) { - av_freep(&c->pb_buffer); - return -1; - } - /* no need to write if no events */ - if (!(c->poll_entry->revents & POLLOUT)) - return 0; - len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0); - if (len < 0) { - if (ff_neterrno() != AVERROR(EAGAIN) && - ff_neterrno() != AVERROR(EINTR)) { - /* error : close connection */ - av_freep(&c->pb_buffer); - return -1; - } - } else { - c->buffer_ptr += len; - c->data_count += len; - if (c->buffer_ptr >= c->buffer_end) { - /* all the buffer was sent : wait for a new request */ - av_freep(&c->pb_buffer); - start_wait_request(c, 1); - } - } - break; - case RTSPSTATE_SEND_PACKET: - if (c->poll_entry->revents & (POLLERR | POLLHUP)) { - av_freep(&c->packet_buffer); - return -1; - } - /* no need to write if no events */ - if (!(c->poll_entry->revents & POLLOUT)) - return 0; - len = send(c->fd, c->packet_buffer_ptr, - c->packet_buffer_end - c->packet_buffer_ptr, 0); - if (len < 0) { - if (ff_neterrno() != AVERROR(EAGAIN) && - ff_neterrno() != AVERROR(EINTR)) { - /* error : close connection */ - av_freep(&c->packet_buffer); - return -1; - } - } else { - c->packet_buffer_ptr += len; - if (c->packet_buffer_ptr >= c->packet_buffer_end) { - /* all the buffer was sent : wait for a new request */ - av_freep(&c->packet_buffer); - c->state = RTSPSTATE_WAIT_REQUEST; - } - } - break; - case HTTPSTATE_READY: - /* nothing to do */ - break; - default: - return -1; - } - return 0; -} - -static int extract_rates(char *rates, int ratelen, const char *request) -{ - const char *p; - - for (p = request; *p && *p != '\r' && *p != '\n'; ) { - if (av_strncasecmp(p, "Pragma:", 7) == 0) { - const char *q = p + 7; - - while (*q && *q != '\n' && av_isspace(*q)) - q++; - - if (av_strncasecmp(q, "stream-switch-entry=", 20) == 0) { - int stream_no; - int rate_no; - - q += 20; - - memset(rates, 0xff, ratelen); - - while (1) { - while (*q && *q != '\n' && *q != ':') - q++; - - if (sscanf(q, ":%d:%d", &stream_no, &rate_no) != 2) - break; - - stream_no--; - if (stream_no < ratelen && stream_no >= 0) - rates[stream_no] = rate_no; - - while (*q && *q != '\n' && !av_isspace(*q)) - q++; - } - - return 1; - } - } - p = strchr(p, '\n'); - if (!p) - break; - - p++; - } - - return 0; -} - -static int find_stream_in_feed(FFStream *feed, AVCodecContext *codec, int bit_rate) -{ - int i; - int best_bitrate = 100000000; - int best = -1; - - for (i = 0; i < feed->nb_streams; i++) { - AVCodecContext *feed_codec = feed->streams[i]->codec; - - if (feed_codec->codec_id != codec->codec_id || - feed_codec->sample_rate != codec->sample_rate || - feed_codec->width != codec->width || - feed_codec->height != codec->height) - continue; - - /* Potential stream */ - - /* We want the fastest stream less than bit_rate, or the slowest - * faster than bit_rate - */ - - if (feed_codec->bit_rate <= bit_rate) { - if (best_bitrate > bit_rate || feed_codec->bit_rate > best_bitrate) { - best_bitrate = feed_codec->bit_rate; - best = i; - } - } else { - if (feed_codec->bit_rate < best_bitrate) { - best_bitrate = feed_codec->bit_rate; - best = i; - } - } - } - - return best; -} - -static int modify_current_stream(HTTPContext *c, char *rates) -{ - int i; - FFStream *req = c->stream; - int action_required = 0; - - /* Not much we can do for a feed */ - if (!req->feed) - return 0; - - for (i = 0; i < req->nb_streams; i++) { - AVCodecContext *codec = req->streams[i]->codec; - - switch(rates[i]) { - case 0: - c->switch_feed_streams[i] = req->feed_streams[i]; - break; - case 1: - c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 2); - break; - case 2: - /* Wants off or slow */ - c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 4); -#ifdef WANTS_OFF - /* This doesn't work well when it turns off the only stream! */ - c->switch_feed_streams[i] = -2; - c->feed_streams[i] = -2; -#endif - break; - } - - if (c->switch_feed_streams[i] >= 0 && c->switch_feed_streams[i] != c->feed_streams[i]) - action_required = 1; - } - - return action_required; -} - -/* XXX: factorize in utils.c ? */ -/* XXX: take care with different space meaning */ -static void skip_spaces(const char **pp) -{ - const char *p; - p = *pp; - while (*p == ' ' || *p == '\t') - p++; - *pp = p; -} - -static void get_word(char *buf, int buf_size, const char **pp) -{ - const char *p; - char *q; - - p = *pp; - skip_spaces(&p); - q = buf; - while (!av_isspace(*p) && *p != '\0') { - if ((q - buf) < buf_size - 1) - *q++ = *p; - p++; - } - if (buf_size > 0) - *q = '\0'; - *pp = p; -} - -static void get_arg(char *buf, int buf_size, const char **pp) -{ - const char *p; - char *q; - int quote; - - p = *pp; - while (av_isspace(*p)) p++; - q = buf; - quote = 0; - if (*p == '\"' || *p == '\'') - quote = *p++; - for(;;) { - if (quote) { - if (*p == quote) - break; - } else { - if (av_isspace(*p)) - break; - } - if (*p == '\0') - break; - if ((q - buf) < buf_size - 1) - *q++ = *p; - p++; - } - *q = '\0'; - if (quote && *p == quote) - p++; - *pp = p; -} - -static void parse_acl_row(FFStream *stream, FFStream* feed, IPAddressACL *ext_acl, - const char *p, const char *filename, int line_num) -{ - char arg[1024]; - IPAddressACL acl; - int errors = 0; - - get_arg(arg, sizeof(arg), &p); - if (av_strcasecmp(arg, "allow") == 0) - acl.action = IP_ALLOW; - else if (av_strcasecmp(arg, "deny") == 0) - acl.action = IP_DENY; - else { - fprintf(stderr, "%s:%d: ACL action '%s' is not ALLOW or DENY\n", - filename, line_num, arg); - errors++; - } - - get_arg(arg, sizeof(arg), &p); - - if (resolve_host(&acl.first, arg) != 0) { - fprintf(stderr, "%s:%d: ACL refers to invalid host or ip address '%s'\n", - filename, line_num, arg); - errors++; - } else - acl.last = acl.first; - - get_arg(arg, sizeof(arg), &p); - - if (arg[0]) { - if (resolve_host(&acl.last, arg) != 0) { - fprintf(stderr, "%s:%d: ACL refers to invalid host or ip address '%s'\n", - filename, line_num, arg); - errors++; - } - } - - if (!errors) { - IPAddressACL *nacl = av_mallocz(sizeof(*nacl)); - IPAddressACL **naclp = 0; - - acl.next = 0; - *nacl = acl; - - if (stream) - naclp = &stream->acl; - else if (feed) - naclp = &feed->acl; - else if (ext_acl) - naclp = &ext_acl; - else { - fprintf(stderr, "%s:%d: ACL found not in <stream> or <feed>\n", - filename, line_num); - errors++; - } - - if (naclp) { - while (*naclp) - naclp = &(*naclp)->next; - - *naclp = nacl; - } - } -} - - -static IPAddressACL* parse_dynamic_acl(FFStream *stream, HTTPContext *c) -{ - FILE* f; - char line[1024]; - char cmd[1024]; - IPAddressACL *acl = NULL; - int line_num = 0; - const char *p; - - f = fopen(stream->dynamic_acl, "r"); - if (!f) { - perror(stream->dynamic_acl); - return NULL; - } - - acl = av_mallocz(sizeof(IPAddressACL)); - - /* Build ACL */ - for(;;) { - if (fgets(line, sizeof(line), f) == NULL) - break; - line_num++; - p = line; - while (av_isspace(*p)) - p++; - if (*p == '\0' || *p == '#') - continue; - get_arg(cmd, sizeof(cmd), &p); - - if (!av_strcasecmp(cmd, "ACL")) - parse_acl_row(NULL, NULL, acl, p, stream->dynamic_acl, line_num); - } - fclose(f); - return acl; -} - - -static void free_acl_list(IPAddressACL *in_acl) -{ - IPAddressACL *pacl,*pacl2; - - pacl = in_acl; - while(pacl) { - pacl2 = pacl; - pacl = pacl->next; - av_freep(pacl2); - } -} - -static int validate_acl_list(IPAddressACL *in_acl, HTTPContext *c) -{ - enum IPAddressAction last_action = IP_DENY; - IPAddressACL *acl; - struct in_addr *src = &c->from_addr.sin_addr; - unsigned long src_addr = src->s_addr; - - for (acl = in_acl; acl; acl = acl->next) { - if (src_addr >= acl->first.s_addr && src_addr <= acl->last.s_addr) - return (acl->action == IP_ALLOW) ? 1 : 0; - last_action = acl->action; - } - - /* Nothing matched, so return not the last action */ - return (last_action == IP_DENY) ? 1 : 0; -} - -static int validate_acl(FFStream *stream, HTTPContext *c) -{ - int ret = 0; - IPAddressACL *acl; - - - /* if stream->acl is null validate_acl_list will return 1 */ - ret = validate_acl_list(stream->acl, c); - - if (stream->dynamic_acl[0]) { - acl = parse_dynamic_acl(stream, c); - - ret = validate_acl_list(acl, c); - - free_acl_list(acl); - } - - return ret; -} - -/* compute the real filename of a file by matching it without its - extensions to all the stream filenames */ -static void compute_real_filename(char *filename, int max_size) -{ - char file1[1024]; - char file2[1024]; - char *p; - FFStream *stream; - - /* compute filename by matching without the file extensions */ - av_strlcpy(file1, filename, sizeof(file1)); - p = strrchr(file1, '.'); - if (p) - *p = '\0'; - for(stream = first_stream; stream != NULL; stream = stream->next) { - av_strlcpy(file2, stream->filename, sizeof(file2)); - p = strrchr(file2, '.'); - if (p) - *p = '\0'; - if (!strcmp(file1, file2)) { - av_strlcpy(filename, stream->filename, max_size); - break; - } - } -} - -enum RedirType { - REDIR_NONE, - REDIR_ASX, - REDIR_RAM, - REDIR_ASF, - REDIR_RTSP, - REDIR_SDP, -}; - -/* parse http request and prepare header */ -static int http_parse_request(HTTPContext *c) -{ - const char *p; - char *p1; - enum RedirType redir_type; - char cmd[32]; - char info[1024], filename[1024]; - char url[1024], *q; - char protocol[32]; - char msg[1024]; - const char *mime_type; - FFStream *stream; - int i; - char ratebuf[32]; - const char *useragent = 0; - - p = c->buffer; - get_word(cmd, sizeof(cmd), &p); - av_strlcpy(c->method, cmd, sizeof(c->method)); - - if (!strcmp(cmd, "GET")) - c->post = 0; - else if (!strcmp(cmd, "POST")) - c->post = 1; - else - return -1; - - get_word(url, sizeof(url), &p); - av_strlcpy(c->url, url, sizeof(c->url)); - - get_word(protocol, sizeof(protocol), (const char **)&p); - if (strcmp(protocol, "HTTP/1.0") && strcmp(protocol, "HTTP/1.1")) - return -1; - - av_strlcpy(c->protocol, protocol, sizeof(c->protocol)); - - if (avserver_debug) - http_log("%s - - New connection: %s %s\n", inet_ntoa(c->from_addr.sin_addr), cmd, url); - - /* find the filename and the optional info string in the request */ - p1 = strchr(url, '?'); - if (p1) { - av_strlcpy(info, p1, sizeof(info)); - *p1 = '\0'; - } else - info[0] = '\0'; - - av_strlcpy(filename, url + ((*url == '/') ? 1 : 0), sizeof(filename)-1); - - for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) { - if (av_strncasecmp(p, "User-Agent:", 11) == 0) { - useragent = p + 11; - if (*useragent && *useragent != '\n' && av_isspace(*useragent)) - useragent++; - break; - } - p = strchr(p, '\n'); - if (!p) - break; - - p++; - } - - redir_type = REDIR_NONE; - if (av_match_ext(filename, "asx")) { - redir_type = REDIR_ASX; - filename[strlen(filename)-1] = 'f'; - } else if (av_match_ext(filename, "asf") && - (!useragent || av_strncasecmp(useragent, "NSPlayer", 8) != 0)) { - /* if this isn't WMP or lookalike, return the redirector file */ - redir_type = REDIR_ASF; - } else if (av_match_ext(filename, "rpm,ram")) { - redir_type = REDIR_RAM; - strcpy(filename + strlen(filename)-2, "m"); - } else if (av_match_ext(filename, "rtsp")) { - redir_type = REDIR_RTSP; - compute_real_filename(filename, sizeof(filename) - 1); - } else if (av_match_ext(filename, "sdp")) { - redir_type = REDIR_SDP; - compute_real_filename(filename, sizeof(filename) - 1); - } - - // "redirect" / request to index.html - if (!strlen(filename)) - av_strlcpy(filename, "index.html", sizeof(filename) - 1); - - stream = first_stream; - while (stream != NULL) { - if (!strcmp(stream->filename, filename) && validate_acl(stream, c)) - break; - stream = stream->next; - } - if (stream == NULL) { - snprintf(msg, sizeof(msg), "File '%s' not found", url); - http_log("File '%s' not found\n", url); - goto send_error; - } - - c->stream = stream; - memcpy(c->feed_streams, stream->feed_streams, sizeof(c->feed_streams)); - memset(c->switch_feed_streams, -1, sizeof(c->switch_feed_streams)); - - if (stream->stream_type == STREAM_TYPE_REDIRECT) { - c->http_error = 301; - q = c->buffer; - q += snprintf(q, c->buffer_size, - "HTTP/1.0 301 Moved\r\n" - "Location: %s\r\n" - "Content-type: text/html\r\n" - "\r\n" - "<html><head><title>Moved</title></head><body>\r\n" - "You should be <a href=\"%s\">redirected</a>.\r\n" - "</body></html>\r\n", stream->feed_filename, stream->feed_filename); - /* prepare output buffer */ - c->buffer_ptr = c->buffer; - c->buffer_end = q; - c->state = HTTPSTATE_SEND_HEADER; - return 0; - } - - /* If this is WMP, get the rate information */ - if (extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) { - if (modify_current_stream(c, ratebuf)) { - for (i = 0; i < FF_ARRAY_ELEMS(c->feed_streams); i++) { - if (c->switch_feed_streams[i] >= 0) - c->switch_feed_streams[i] = -1; - } - } - } - - if (c->post == 0 && stream->stream_type == STREAM_TYPE_LIVE) - current_bandwidth += stream->bandwidth; - - /* If already streaming this feed, do not let start another feeder. */ - if (stream->feed_opened) { - snprintf(msg, sizeof(msg), "This feed is already being received."); - http_log("Feed '%s' already being received\n", stream->feed_filename); - goto send_error; - } - - if (c->post == 0 && max_bandwidth < current_bandwidth) { - c->http_error = 503; - q = c->buffer; - q += snprintf(q, c->buffer_size, - "HTTP/1.0 503 Server too busy\r\n" - "Content-type: text/html\r\n" - "\r\n" - "<html><head><title>Too busy</title></head><body>\r\n" - "<p>The server is too busy to serve your request at this time.</p>\r\n" - "<p>The bandwidth being served (including your stream) is %"PRIu64"kbit/sec, " - "and this exceeds the limit of %"PRIu64"kbit/sec.</p>\r\n" - "</body></html>\r\n", current_bandwidth, max_bandwidth); - /* prepare output buffer */ - c->buffer_ptr = c->buffer; - c->buffer_end = q; - c->state = HTTPSTATE_SEND_HEADER; - return 0; - } - - if (redir_type != REDIR_NONE) { - const char *hostinfo = 0; - - for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) { - if (av_strncasecmp(p, "Host:", 5) == 0) { - hostinfo = p + 5; - break; - } - p = strchr(p, '\n'); - if (!p) - break; - - p++; - } - - if (hostinfo) { - char *eoh; - char hostbuf[260]; - - while (av_isspace(*hostinfo)) - hostinfo++; - - eoh = strchr(hostinfo, '\n'); - if (eoh) { - if (eoh[-1] == '\r') - eoh--; - - if (eoh - hostinfo < sizeof(hostbuf) - 1) { - memcpy(hostbuf, hostinfo, eoh - hostinfo); - hostbuf[eoh - hostinfo] = 0; - - c->http_error = 200; - q = c->buffer; - switch(redir_type) { - case REDIR_ASX: - q += snprintf(q, c->buffer_size, - "HTTP/1.0 200 ASX Follows\r\n" - "Content-type: video/x-ms-asf\r\n" - "\r\n" - "<ASX Version=\"3\">\r\n" - //"<!-- Autogenerated by avserver -->\r\n" - "<ENTRY><REF HREF=\"http://%s/%s%s\"/></ENTRY>\r\n" - "</ASX>\r\n", hostbuf, filename, info); - break; - case REDIR_RAM: - q += snprintf(q, c->buffer_size, - "HTTP/1.0 200 RAM Follows\r\n" - "Content-type: audio/x-pn-realaudio\r\n" - "\r\n" - "# Autogenerated by avserver\r\n" - "http://%s/%s%s\r\n", hostbuf, filename, info); - break; - case REDIR_ASF: - q += snprintf(q, c->buffer_size, - "HTTP/1.0 200 ASF Redirect follows\r\n" - "Content-type: video/x-ms-asf\r\n" - "\r\n" - "[Reference]\r\n" - "Ref1=http://%s/%s%s\r\n", hostbuf, filename, info); - break; - case REDIR_RTSP: - { - char hostname[256], *p; - /* extract only hostname */ - av_strlcpy(hostname, hostbuf, sizeof(hostname)); - p = strrchr(hostname, ':'); - if (p) - *p = '\0'; - q += snprintf(q, c->buffer_size, - "HTTP/1.0 200 RTSP Redirect follows\r\n" - /* XXX: incorrect mime type ? */ - "Content-type: application/x-rtsp\r\n" - "\r\n" - "rtsp://%s:%d/%s\r\n", hostname, ntohs(my_rtsp_addr.sin_port), filename); - } - break; - case REDIR_SDP: - { - uint8_t *sdp_data; - int sdp_data_size; - socklen_t len; - struct sockaddr_in my_addr; - - q += snprintf(q, c->buffer_size, - "HTTP/1.0 200 OK\r\n" - "Content-type: application/sdp\r\n" - "\r\n"); - - len = sizeof(my_addr); - getsockname(c->fd, (struct sockaddr *)&my_addr, &len); - - /* XXX: should use a dynamic buffer */ - sdp_data_size = prepare_sdp_description(stream, - &sdp_data, - my_addr.sin_addr); - if (sdp_data_size > 0) { - memcpy(q, sdp_data, sdp_data_size); - q += sdp_data_size; - *q = '\0'; - av_free(sdp_data); - } - } - break; - default: - abort(); - break; - } - - /* prepare output buffer */ - c->buffer_ptr = c->buffer; - c->buffer_end = q; - c->state = HTTPSTATE_SEND_HEADER; - return 0; - } - } - } - - snprintf(msg, sizeof(msg), "ASX/RAM file not handled"); - goto send_error; - } - - stream->conns_served++; - - /* XXX: add there authenticate and IP match */ - - if (c->post) { - /* if post, it means a feed is being sent */ - if (!stream->is_feed) { - /* However it might be a status report from WMP! Let us log the - * data as it might come in handy one day. */ - const char *logline = 0; - int client_id = 0; - - for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) { - if (av_strncasecmp(p, "Pragma: log-line=", 17) == 0) { - logline = p; - break; - } - if (av_strncasecmp(p, "Pragma: client-id=", 18) == 0) - client_id = strtol(p + 18, 0, 10); - p = strchr(p, '\n'); - if (!p) - break; - - p++; - } - - if (logline) { - char *eol = strchr(logline, '\n'); - - logline += 17; - - if (eol) { - if (eol[-1] == '\r') - eol--; - http_log("%.*s\n", (int) (eol - logline), logline); - c->suppress_log = 1; - } - } - -#ifdef DEBUG - http_log("\nGot request:\n%s\n", c->buffer); -#endif - - if (client_id && extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) { - HTTPContext *wmpc; - - /* Now we have to find the client_id */ - for (wmpc = first_http_ctx; wmpc; wmpc = wmpc->next) { - if (wmpc->wmp_client_id == client_id) - break; - } - - if (wmpc && modify_current_stream(wmpc, ratebuf)) - wmpc->switch_pending = 1; - } - - snprintf(msg, sizeof(msg), "POST command not handled"); - c->stream = 0; - goto send_error; - } - if (http_start_receive_data(c) < 0) { - snprintf(msg, sizeof(msg), "could not open feed"); - goto send_error; - } - c->http_error = 0; - c->state = HTTPSTATE_RECEIVE_DATA; - return 0; - } - -#ifdef DEBUG - if (strcmp(stream->filename + strlen(stream->filename) - 4, ".asf") == 0) - http_log("\nGot request:\n%s\n", c->buffer); -#endif - - if (c->stream->stream_type == STREAM_TYPE_STATUS) - goto send_status; - - /* open input stream */ - if (open_input_stream(c, info) < 0) { - snprintf(msg, sizeof(msg), "Input stream corresponding to '%s' not found", url); - goto send_error; - } - - /* prepare http header */ - q = c->buffer; - q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "HTTP/1.0 200 OK\r\n"); - mime_type = c->stream->fmt->mime_type; - if (!mime_type) - mime_type = "application/x-octet-stream"; - q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Pragma: no-cache\r\n"); - - /* for asf, we need extra headers */ - if (!strcmp(c->stream->fmt->name,"asf_stream")) { - /* Need to allocate a client id */ - - c->wmp_client_id = av_lfg_get(&random_state); - - q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Server: Cougar 4.1.0.3923\r\nCache-Control: no-cache\r\nPragma: client-id=%d\r\nPragma: features=\"broadcast\"\r\n", c->wmp_client_id); - } - q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Content-Type: %s\r\n", mime_type); - q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "\r\n"); - - /* prepare output buffer */ - c->http_error = 0; - c->buffer_ptr = c->buffer; - c->buffer_end = q; - c->state = HTTPSTATE_SEND_HEADER; - return 0; - send_error: - c->http_error = 404; - q = c->buffer; - q += snprintf(q, c->buffer_size, - "HTTP/1.0 404 Not Found\r\n" - "Content-type: text/html\r\n" - "\r\n" - "<html>\n" - "<head><title>404 Not Found</title></head>\n" - "<body>%s</body>\n" - "</html>\n", msg); - /* prepare output buffer */ - c->buffer_ptr = c->buffer; - c->buffer_end = q; - c->state = HTTPSTATE_SEND_HEADER; - return 0; - send_status: - compute_status(c); - c->http_error = 200; /* horrible : we use this value to avoid - going to the send data state */ - c->state = HTTPSTATE_SEND_HEADER; - return 0; -} - -static void fmt_bytecount(AVIOContext *pb, int64_t count) -{ - static const char suffix[] = " kMGTP"; - const char *s; - - for (s = suffix; count >= 100000 && s[1]; count /= 1000, s++); - - avio_printf(pb, "%"PRId64"%c", count, *s); -} - -static void compute_status(HTTPContext *c) -{ - HTTPContext *c1; - FFStream *stream; - char *p; - time_t ti; - int i, len; - AVIOContext *pb; - - if (avio_open_dyn_buf(&pb) < 0) { - /* XXX: return an error ? */ - c->buffer_ptr = c->buffer; - c->buffer_end = c->buffer; - return; - } - - avio_printf(pb, "HTTP/1.0 200 OK\r\n"); - avio_printf(pb, "Content-type: %s\r\n", "text/html"); - avio_printf(pb, "Pragma: no-cache\r\n"); - avio_printf(pb, "\r\n"); - - avio_printf(pb, "<html><head><title>%s Status</title>\n", program_name); - if (c->stream->feed_filename[0]) - avio_printf(pb, "<link rel=\"shortcut icon\" href=\"%s\">\n", c->stream->feed_filename); - avio_printf(pb, "</head>\n<body>"); - avio_printf(pb, "<h1>%s Status</h1>\n", program_name); - /* format status */ - avio_printf(pb, "<h2>Available Streams</h2>\n"); - avio_printf(pb, "<table cellspacing=0 cellpadding=4>\n"); - avio_printf(pb, "<tr><th valign=top>Path<th align=left>Served<br>Conns<th><br>bytes<th valign=top>Format<th>Bit rate<br>kbits/s<th align=left>Video<br>kbits/s<th><br>Codec<th align=left>Audio<br>kbits/s<th><br>Codec<th align=left valign=top>Feed\n"); - stream = first_stream; - while (stream != NULL) { - char sfilename[1024]; - char *eosf; - - if (stream->feed != stream) { - av_strlcpy(sfilename, stream->filename, sizeof(sfilename) - 10); - eosf = sfilename + strlen(sfilename); - if (eosf - sfilename >= 4) { - if (strcmp(eosf - 4, ".asf") == 0) - strcpy(eosf - 4, ".asx"); - else if (strcmp(eosf - 3, ".rm") == 0) - strcpy(eosf - 3, ".ram"); - else if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) { - /* generate a sample RTSP director if - unicast. Generate an SDP redirector if - multicast */ - eosf = strrchr(sfilename, '.'); - if (!eosf) - eosf = sfilename + strlen(sfilename); - if (stream->is_multicast) - strcpy(eosf, ".sdp"); - else - strcpy(eosf, ".rtsp"); - } - } - - avio_printf(pb, "<tr><td><a href=\"/%s\">%s</a> ", - sfilename, stream->filename); - avio_printf(pb, "<td align=right> %d <td align=right> ", - stream->conns_served); - fmt_bytecount(pb, stream->bytes_served); - switch(stream->stream_type) { - case STREAM_TYPE_LIVE: { - int audio_bit_rate = 0; - int video_bit_rate = 0; - const char *audio_codec_name = ""; - const char *video_codec_name = ""; - const char *audio_codec_name_extra = ""; - const char *video_codec_name_extra = ""; - - for(i=0;i<stream->nb_streams;i++) { - AVStream *st = stream->streams[i]; - AVCodec *codec = avcodec_find_encoder(st->codec->codec_id); - switch(st->codec->codec_type) { - case AVMEDIA_TYPE_AUDIO: - audio_bit_rate += st->codec->bit_rate; - if (codec) { - if (*audio_codec_name) - audio_codec_name_extra = "..."; - audio_codec_name = codec->name; - } - break; - case AVMEDIA_TYPE_VIDEO: - video_bit_rate += st->codec->bit_rate; - if (codec) { - if (*video_codec_name) - video_codec_name_extra = "..."; - video_codec_name = codec->name; - } - break; - case AVMEDIA_TYPE_DATA: - video_bit_rate += st->codec->bit_rate; - break; - default: - abort(); - } - } - avio_printf(pb, "<td align=center> %s <td align=right> %d <td align=right> %d <td> %s %s <td align=right> %d <td> %s %s", - stream->fmt->name, - stream->bandwidth, - video_bit_rate / 1000, video_codec_name, video_codec_name_extra, - audio_bit_rate / 1000, audio_codec_name, audio_codec_name_extra); - if (stream->feed) - avio_printf(pb, "<td>%s", stream->feed->filename); - else - avio_printf(pb, "<td>%s", stream->feed_filename); - avio_printf(pb, "\n"); - } - break; - default: - avio_printf(pb, "<td align=center> - <td align=right> - <td align=right> - <td><td align=right> - <td>\n"); - break; - } - } - stream = stream->next; - } - avio_printf(pb, "</table>\n"); - - stream = first_stream; - while (stream != NULL) { - if (stream->feed == stream) { - avio_printf(pb, "<h2>Feed %s</h2>", stream->filename); - if (stream->pid) { - avio_printf(pb, "Running as pid %d.\n", stream->pid); - -#if defined(linux) && !defined(CONFIG_NOCUTILS) - { - FILE *pid_stat; - char ps_cmd[64]; - - /* This is somewhat linux specific I guess */ - snprintf(ps_cmd, sizeof(ps_cmd), - "ps -o \"%%cpu,cputime\" --no-headers %d", - stream->pid); - - pid_stat = popen(ps_cmd, "r"); - if (pid_stat) { - char cpuperc[10]; - char cpuused[64]; - - if (fscanf(pid_stat, "%10s %64s", cpuperc, - cpuused) == 2) { - avio_printf(pb, "Currently using %s%% of the cpu. Total time used %s.\n", - cpuperc, cpuused); - } - fclose(pid_stat); - } - } -#endif - - avio_printf(pb, "<p>"); - } - avio_printf(pb, "<table cellspacing=0 cellpadding=4><tr><th>Stream<th>type<th>kbits/s<th align=left>codec<th align=left>Parameters\n"); - - for (i = 0; i < stream->nb_streams; i++) { - AVStream *st = stream->streams[i]; - AVCodec *codec = avcodec_find_encoder(st->codec->codec_id); - const char *type = "unknown"; - char parameters[64]; - - parameters[0] = 0; - - switch(st->codec->codec_type) { - case AVMEDIA_TYPE_AUDIO: - type = "audio"; - snprintf(parameters, sizeof(parameters), "%d channel(s), %d Hz", st->codec->channels, st->codec->sample_rate); - break; - case AVMEDIA_TYPE_VIDEO: - type = "video"; - snprintf(parameters, sizeof(parameters), "%dx%d, q=%d-%d, fps=%d", st->codec->width, st->codec->height, - st->codec->qmin, st->codec->qmax, st->codec->time_base.den / st->codec->time_base.num); - break; - default: - abort(); - } - avio_printf(pb, "<tr><td align=right>%d<td>%s<td align=right>%d<td>%s<td>%s\n", - i, type, st->codec->bit_rate/1000, codec ? codec->name : "", parameters); - } - avio_printf(pb, "</table>\n"); - - } - stream = stream->next; - } - - /* connection status */ - avio_printf(pb, "<h2>Connection Status</h2>\n"); - - avio_printf(pb, "Number of connections: %d / %d<br>\n", - nb_connections, nb_max_connections); - - avio_printf(pb, "Bandwidth in use: %"PRIu64"k / %"PRIu64"k<br>\n", - current_bandwidth, max_bandwidth); - - avio_printf(pb, "<table>\n"); - avio_printf(pb, "<tr><th>#<th>File<th>IP<th>Proto<th>State<th>Target bits/sec<th>Actual bits/sec<th>Bytes transferred\n"); - c1 = first_http_ctx; - i = 0; - while (c1 != NULL) { - int bitrate; - int j; - - bitrate = 0; - if (c1->stream) { - for (j = 0; j < c1->stream->nb_streams; j++) { - if (!c1->stream->feed) - bitrate += c1->stream->streams[j]->codec->bit_rate; - else if (c1->feed_streams[j] >= 0) - bitrate += c1->stream->feed->streams[c1->feed_streams[j]]->codec->bit_rate; - } - } - - i++; - p = inet_ntoa(c1->from_addr.sin_addr); - avio_printf(pb, "<tr><td><b>%d</b><td>%s%s<td>%s<td>%s<td>%s<td align=right>", - i, - c1->stream ? c1->stream->filename : "", - c1->state == HTTPSTATE_RECEIVE_DATA ? "(input)" : "", - p, - c1->protocol, - http_state[c1->state]); - fmt_bytecount(pb, bitrate); - avio_printf(pb, "<td align=right>"); - fmt_bytecount(pb, compute_datarate(&c1->datarate, c1->data_count) * 8); - avio_printf(pb, "<td align=right>"); - fmt_bytecount(pb, c1->data_count); - avio_printf(pb, "\n"); - c1 = c1->next; - } - avio_printf(pb, "</table>\n"); - - /* date */ - ti = time(NULL); - p = ctime(&ti); - avio_printf(pb, "<hr size=1 noshade>Generated at %s", p); - avio_printf(pb, "</body>\n</html>\n"); - - len = avio_close_dyn_buf(pb, &c->pb_buffer); - c->buffer_ptr = c->pb_buffer; - c->buffer_end = c->pb_buffer + len; -} - -static int open_input_stream(HTTPContext *c, const char *info) -{ - char buf[128]; - char input_filename[1024]; - AVFormatContext *s = NULL; - int i, ret; - int64_t stream_pos; - - /* find file name */ - if (c->stream->feed) { - strcpy(input_filename, c->stream->feed->feed_filename); - /* compute position (absolute time) */ - if (av_find_info_tag(buf, sizeof(buf), "date", info)) { - if ((ret = av_parse_time(&stream_pos, buf, 0)) < 0) - return ret; - } else if (av_find_info_tag(buf, sizeof(buf), "buffer", info)) { - int prebuffer = strtol(buf, 0, 10); - stream_pos = av_gettime() - prebuffer * (int64_t)1000000; - } else - stream_pos = av_gettime() - c->stream->prebuffer * (int64_t)1000; - } else { - strcpy(input_filename, c->stream->feed_filename); - /* compute position (relative time) */ - if (av_find_info_tag(buf, sizeof(buf), "date", info)) { - if ((ret = av_parse_time(&stream_pos, buf, 1)) < 0) - return ret; - } else - stream_pos = 0; - } - if (input_filename[0] == '\0') - return -1; - - /* open stream */ - if ((ret = avformat_open_input(&s, input_filename, c->stream->ifmt, &c->stream->in_opts)) < 0) { - http_log("could not open %s: %d\n", input_filename, ret); - return -1; - } - s->flags |= AVFMT_FLAG_GENPTS; - c->fmt_in = s; - if (strcmp(s->iformat->name, "ffm") && avformat_find_stream_info(c->fmt_in, NULL) < 0) { - http_log("Could not find stream info '%s'\n", input_filename); - avformat_close_input(&s); - return -1; - } - - /* choose stream as clock source (we favorize video stream if - present) for packet sending */ - c->pts_stream_index = 0; - for(i=0;i<c->stream->nb_streams;i++) { - if (c->pts_stream_index == 0 && - c->stream->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO) { - c->pts_stream_index = i; - } - } - - if (c->fmt_in->iformat->read_seek) - av_seek_frame(c->fmt_in, -1, stream_pos, 0); - /* set the start time (needed for maxtime and RTP packet timing) */ - c->start_time = cur_time; - c->first_pts = AV_NOPTS_VALUE; - return 0; -} - -/* return the server clock (in us) */ -static int64_t get_server_clock(HTTPContext *c) -{ - /* compute current pts value from system time */ - return (cur_time - c->start_time) * 1000; -} - -/* return the estimated time at which the current packet must be sent - (in us) */ -static int64_t get_packet_send_clock(HTTPContext *c) -{ - int bytes_left, bytes_sent, frame_bytes; - - frame_bytes = c->cur_frame_bytes; - if (frame_bytes <= 0) - return c->cur_pts; - else { - bytes_left = c->buffer_end - c->buffer_ptr; - bytes_sent = frame_bytes - bytes_left; - return c->cur_pts + (c->cur_frame_duration * bytes_sent) / frame_bytes; - } -} - - -static int http_prepare_data(HTTPContext *c) -{ - int i, len, ret; - AVFormatContext *ctx; - - av_freep(&c->pb_buffer); - switch(c->state) { - case HTTPSTATE_SEND_DATA_HEADER: - memset(&c->fmt_ctx, 0, sizeof(c->fmt_ctx)); - av_dict_set(&c->fmt_ctx.metadata, "author" , c->stream->author , 0); - av_dict_set(&c->fmt_ctx.metadata, "comment" , c->stream->comment , 0); - av_dict_set(&c->fmt_ctx.metadata, "copyright", c->stream->copyright, 0); - av_dict_set(&c->fmt_ctx.metadata, "title" , c->stream->title , 0); - - c->fmt_ctx.streams = av_mallocz(sizeof(AVStream *) * c->stream->nb_streams); - - for(i=0;i<c->stream->nb_streams;i++) { - AVStream *src; - c->fmt_ctx.streams[i] = av_mallocz(sizeof(AVStream)); - /* if file or feed, then just take streams from FFStream struct */ - if (!c->stream->feed || - c->stream->feed == c->stream) - src = c->stream->streams[i]; - else - src = c->stream->feed->streams[c->stream->feed_streams[i]]; - - *(c->fmt_ctx.streams[i]) = *src; - c->fmt_ctx.streams[i]->priv_data = 0; - c->fmt_ctx.streams[i]->codec->frame_number = 0; /* XXX: should be done in - AVStream, not in codec */ - } - /* set output format parameters */ - c->fmt_ctx.oformat = c->stream->fmt; - c->fmt_ctx.nb_streams = c->stream->nb_streams; - - c->got_key_frame = 0; - - /* prepare header and save header data in a stream */ - if (avio_open_dyn_buf(&c->fmt_ctx.pb) < 0) { - /* XXX: potential leak */ - return -1; - } - c->fmt_ctx.pb->seekable = 0; - - /* - * HACK to avoid mpeg ps muxer to spit many underflow errors - * Default value from Libav - * Try to set it use configuration option - */ - c->fmt_ctx.max_delay = (int)(0.7*AV_TIME_BASE); - - if (avformat_write_header(&c->fmt_ctx, NULL) < 0) { - http_log("Error writing output header\n"); - return -1; - } - av_dict_free(&c->fmt_ctx.metadata); - - len = avio_close_dyn_buf(c->fmt_ctx.pb, &c->pb_buffer); - c->buffer_ptr = c->pb_buffer; - c->buffer_end = c->pb_buffer + len; - - c->state = HTTPSTATE_SEND_DATA; - c->last_packet_sent = 0; - break; - case HTTPSTATE_SEND_DATA: - /* find a new packet */ - /* read a packet from the input stream */ - if (c->stream->feed) - ffm_set_write_index(c->fmt_in, - c->stream->feed->feed_write_index, - c->stream->feed->feed_size); - - if (c->stream->max_time && - c->stream->max_time + c->start_time - cur_time < 0) - /* We have timed out */ - c->state = HTTPSTATE_SEND_DATA_TRAILER; - else { - AVPacket pkt; - redo: - ret = av_read_frame(c->fmt_in, &pkt); - if (ret < 0) { - if (c->stream->feed) { - /* if coming from feed, it means we reached the end of the - ffm file, so must wait for more data */ - c->state = HTTPSTATE_WAIT_FEED; - return 1; /* state changed */ - } else if (ret == AVERROR(EAGAIN)) { - /* input not ready, come back later */ - return 0; - } else { - if (c->stream->loop) { - avformat_close_input(&c->fmt_in); - if (open_input_stream(c, "") < 0) - goto no_loop; - goto redo; - } else { - no_loop: - /* must send trailer now because eof or error */ - c->state = HTTPSTATE_SEND_DATA_TRAILER; - } - } - } else { - int source_index = pkt.stream_index; - /* update first pts if needed */ - if (c->first_pts == AV_NOPTS_VALUE) { - c->first_pts = av_rescale_q(pkt.dts, c->fmt_in->streams[pkt.stream_index]->time_base, AV_TIME_BASE_Q); - c->start_time = cur_time; - } - /* send it to the appropriate stream */ - if (c->stream->feed) { - /* if coming from a feed, select the right stream */ - if (c->switch_pending) { - c->switch_pending = 0; - for(i=0;i<c->stream->nb_streams;i++) { - if (c->switch_feed_streams[i] == pkt.stream_index) - if (pkt.flags & AV_PKT_FLAG_KEY) - c->switch_feed_streams[i] = -1; - if (c->switch_feed_streams[i] >= 0) - c->switch_pending = 1; - } - } - for(i=0;i<c->stream->nb_streams;i++) { - if (c->stream->feed_streams[i] == pkt.stream_index) { - AVStream *st = c->fmt_in->streams[source_index]; - pkt.stream_index = i; - if (pkt.flags & AV_PKT_FLAG_KEY && - (st->codec->codec_type == AVMEDIA_TYPE_VIDEO || - c->stream->nb_streams == 1)) - c->got_key_frame = 1; - if (!c->stream->send_on_key || c->got_key_frame) - goto send_it; - } - } - } else { - AVCodecContext *codec; - AVStream *ist, *ost; - send_it: - ist = c->fmt_in->streams[source_index]; - /* specific handling for RTP: we use several - output stream (one for each RTP - connection). XXX: need more abstract handling */ - if (c->is_packetized) { - /* compute send time and duration */ - c->cur_pts = av_rescale_q(pkt.dts, ist->time_base, AV_TIME_BASE_Q); - c->cur_pts -= c->first_pts; - c->cur_frame_duration = av_rescale_q(pkt.duration, ist->time_base, AV_TIME_BASE_Q); - /* find RTP context */ - c->packet_stream_index = pkt.stream_index; - ctx = c->rtp_ctx[c->packet_stream_index]; - if(!ctx) { - av_free_packet(&pkt); - break; - } - codec = ctx->streams[0]->codec; - /* only one stream per RTP connection */ - pkt.stream_index = 0; - } else { - ctx = &c->fmt_ctx; - /* Fudge here */ - codec = ctx->streams[pkt.stream_index]->codec; - } - - if (c->is_packetized) { - int max_packet_size; - if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP) - max_packet_size = RTSP_TCP_MAX_PACKET_SIZE; - else - max_packet_size = c->rtp_handles[c->packet_stream_index]->max_packet_size; - ret = ffio_open_dyn_packet_buf(&ctx->pb, max_packet_size); - } else { - ret = avio_open_dyn_buf(&ctx->pb); - } - if (ret < 0) { - /* XXX: potential leak */ - return -1; - } - ost = ctx->streams[pkt.stream_index]; - - ctx->pb->seekable = 0; - if (pkt.dts != AV_NOPTS_VALUE) - pkt.dts = av_rescale_q(pkt.dts, ist->time_base, ost->time_base); - if (pkt.pts != AV_NOPTS_VALUE) - pkt.pts = av_rescale_q(pkt.pts, ist->time_base, ost->time_base); - pkt.duration = av_rescale_q(pkt.duration, ist->time_base, ost->time_base); - if (av_write_frame(ctx, &pkt) < 0) { - http_log("Error writing frame to output\n"); - c->state = HTTPSTATE_SEND_DATA_TRAILER; - } - - len = avio_close_dyn_buf(ctx->pb, &c->pb_buffer); - c->cur_frame_bytes = len; - c->buffer_ptr = c->pb_buffer; - c->buffer_end = c->pb_buffer + len; - - codec->frame_number++; - if (len == 0) { - av_free_packet(&pkt); - goto redo; - } - } - av_free_packet(&pkt); - } - } - break; - default: - case HTTPSTATE_SEND_DATA_TRAILER: - /* last packet test ? */ - if (c->last_packet_sent || c->is_packetized) - return -1; - ctx = &c->fmt_ctx; - /* prepare header */ - if (avio_open_dyn_buf(&ctx->pb) < 0) { - /* XXX: potential leak */ - return -1; - } - c->fmt_ctx.pb->seekable = 0; - av_write_trailer(ctx); - len = avio_close_dyn_buf(ctx->pb, &c->pb_buffer); - c->buffer_ptr = c->pb_buffer; - c->buffer_end = c->pb_buffer + len; - - c->last_packet_sent = 1; - break; - } - return 0; -} - -/* should convert the format at the same time */ -/* send data starting at c->buffer_ptr to the output connection - (either UDP or TCP connection) */ -static int http_send_data(HTTPContext *c) -{ - int len, ret; - - for(;;) { - if (c->buffer_ptr >= c->buffer_end) { - ret = http_prepare_data(c); - if (ret < 0) - return -1; - else if (ret != 0) - /* state change requested */ - break; - } else { - if (c->is_packetized) { - /* RTP data output */ - len = c->buffer_end - c->buffer_ptr; - if (len < 4) { - /* fail safe - should never happen */ - fail1: - c->buffer_ptr = c->buffer_end; - return 0; - } - len = (c->buffer_ptr[0] << 24) | - (c->buffer_ptr[1] << 16) | - (c->buffer_ptr[2] << 8) | - (c->buffer_ptr[3]); - if (len > (c->buffer_end - c->buffer_ptr)) - goto fail1; - if ((get_packet_send_clock(c) - get_server_clock(c)) > 0) { - /* nothing to send yet: we can wait */ - return 0; - } - - c->data_count += len; - update_datarate(&c->datarate, c->data_count); - if (c->stream) - c->stream->bytes_served += len; - - if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP) { - /* RTP packets are sent inside the RTSP TCP connection */ - AVIOContext *pb; - int interleaved_index, size; - uint8_t header[4]; - HTTPContext *rtsp_c; - - rtsp_c = c->rtsp_c; - /* if no RTSP connection left, error */ - if (!rtsp_c) - return -1; - /* if already sending something, then wait. */ - if (rtsp_c->state != RTSPSTATE_WAIT_REQUEST) - break; - if (avio_open_dyn_buf(&pb) < 0) - goto fail1; - interleaved_index = c->packet_stream_index * 2; - /* RTCP packets are sent at odd indexes */ - if (c->buffer_ptr[1] == 200) - interleaved_index++; - /* write RTSP TCP header */ - header[0] = '$'; - header[1] = interleaved_index; - header[2] = len >> 8; - header[3] = len; - avio_write(pb, header, 4); - /* write RTP packet data */ - c->buffer_ptr += 4; - avio_write(pb, c->buffer_ptr, len); - size = avio_close_dyn_buf(pb, &c->packet_buffer); - /* prepare asynchronous TCP sending */ - rtsp_c->packet_buffer_ptr = c->packet_buffer; - rtsp_c->packet_buffer_end = c->packet_buffer + size; - c->buffer_ptr += len; - - /* send everything we can NOW */ - len = send(rtsp_c->fd, rtsp_c->packet_buffer_ptr, - rtsp_c->packet_buffer_end - rtsp_c->packet_buffer_ptr, 0); - if (len > 0) - rtsp_c->packet_buffer_ptr += len; - if (rtsp_c->packet_buffer_ptr < rtsp_c->packet_buffer_end) { - /* if we could not send all the data, we will - send it later, so a new state is needed to - "lock" the RTSP TCP connection */ - rtsp_c->state = RTSPSTATE_SEND_PACKET; - break; - } else - /* all data has been sent */ - av_freep(&c->packet_buffer); - } else { - /* send RTP packet directly in UDP */ - c->buffer_ptr += 4; - ffurl_write(c->rtp_handles[c->packet_stream_index], - c->buffer_ptr, len); - c->buffer_ptr += len; - /* here we continue as we can send several packets per 10 ms slot */ - } - } else { - /* TCP data output */ - len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0); - if (len < 0) { - if (ff_neterrno() != AVERROR(EAGAIN) && - ff_neterrno() != AVERROR(EINTR)) - /* error : close connection */ - return -1; - else - return 0; - } else - c->buffer_ptr += len; - - c->data_count += len; - update_datarate(&c->datarate, c->data_count); - if (c->stream) - c->stream->bytes_served += len; - break; - } - } - } /* for(;;) */ - return 0; -} - -static int http_start_receive_data(HTTPContext *c) -{ - int fd; - - if (c->stream->feed_opened) - return -1; - - /* Don't permit writing to this one */ - if (c->stream->readonly) - return -1; - - /* open feed */ - fd = open(c->stream->feed_filename, O_RDWR); - if (fd < 0) { - http_log("Error opening feeder file: %s\n", strerror(errno)); - return -1; - } - c->feed_fd = fd; - - if (c->stream->truncate) { - /* truncate feed file */ - ffm_write_write_index(c->feed_fd, FFM_PACKET_SIZE); - http_log("Truncating feed file '%s'\n", c->stream->feed_filename); - if (ftruncate(c->feed_fd, FFM_PACKET_SIZE) < 0) { - http_log("Error truncating feed file: %s\n", strerror(errno)); - return -1; - } - } else { - if ((c->stream->feed_write_index = ffm_read_write_index(fd)) < 0) { - http_log("Error reading write index from feed file: %s\n", strerror(errno)); - return -1; - } - } - - c->stream->feed_write_index = FFMAX(ffm_read_write_index(fd), FFM_PACKET_SIZE); - c->stream->feed_size = lseek(fd, 0, SEEK_END); - lseek(fd, 0, SEEK_SET); - - /* init buffer input */ - c->buffer_ptr = c->buffer; - c->buffer_end = c->buffer + FFM_PACKET_SIZE; - c->stream->feed_opened = 1; - c->chunked_encoding = !!av_stristr(c->buffer, "Transfer-Encoding: chunked"); - return 0; -} - -static int http_receive_data(HTTPContext *c) -{ - HTTPContext *c1; - int len, loop_run = 0; - - while (c->chunked_encoding && !c->chunk_size && - c->buffer_end > c->buffer_ptr) { - /* read chunk header, if present */ - len = recv(c->fd, c->buffer_ptr, 1, 0); - - if (len < 0) { - if (ff_neterrno() != AVERROR(EAGAIN) && - ff_neterrno() != AVERROR(EINTR)) - /* error : close connection */ - goto fail; - return 0; - } else if (len == 0) { - /* end of connection : close it */ - goto fail; - } else if (c->buffer_ptr - c->buffer >= 2 && - !memcmp(c->buffer_ptr - 1, "\r\n", 2)) { - c->chunk_size = strtol(c->buffer, 0, 16); - if (c->chunk_size == 0) // end of stream - goto fail; - c->buffer_ptr = c->buffer; - break; - } else if (++loop_run > 10) { - /* no chunk header, abort */ - goto fail; - } else { - c->buffer_ptr++; - } - } - - if (c->buffer_end > c->buffer_ptr) { - len = recv(c->fd, c->buffer_ptr, - FFMIN(c->chunk_size, c->buffer_end - c->buffer_ptr), 0); - if (len < 0) { - if (ff_neterrno() != AVERROR(EAGAIN) && - ff_neterrno() != AVERROR(EINTR)) - /* error : close connection */ - goto fail; - } else if (len == 0) - /* end of connection : close it */ - goto fail; - else { - c->chunk_size -= len; - c->buffer_ptr += len; - c->data_count += len; - update_datarate(&c->datarate, c->data_count); - } - } - - if (c->buffer_ptr - c->buffer >= 2 && c->data_count > FFM_PACKET_SIZE) { - if (c->buffer[0] != 'f' || - c->buffer[1] != 'm') { - http_log("Feed stream has become desynchronized -- disconnecting\n"); - goto fail; - } - } - - if (c->buffer_ptr >= c->buffer_end) { - FFStream *feed = c->stream; - /* a packet has been received : write it in the store, except - if header */ - if (c->data_count > FFM_PACKET_SIZE) { - /* XXX: use llseek or url_seek */ - lseek(c->feed_fd, feed->feed_write_index, SEEK_SET); - if (write(c->feed_fd, c->buffer, FFM_PACKET_SIZE) < 0) { - http_log("Error writing to feed file: %s\n", strerror(errno)); - goto fail; - } - - feed->feed_write_index += FFM_PACKET_SIZE; - /* update file size */ - if (feed->feed_write_index > c->stream->feed_size) - feed->feed_size = feed->feed_write_index; - - /* handle wrap around if max file size reached */ - if (c->stream->feed_max_size && feed->feed_write_index >= c->stream->feed_max_size) - feed->feed_write_index = FFM_PACKET_SIZE; - - /* write index */ - if (ffm_write_write_index(c->feed_fd, feed->feed_write_index) < 0) { - http_log("Error writing index to feed file: %s\n", strerror(errno)); - goto fail; - } - - /* wake up any waiting connections */ - for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) { - if (c1->state == HTTPSTATE_WAIT_FEED && - c1->stream->feed == c->stream->feed) - c1->state = HTTPSTATE_SEND_DATA; - } - } else { - /* We have a header in our hands that contains useful data */ - AVFormatContext *s = avformat_alloc_context(); - AVIOContext *pb; - AVInputFormat *fmt_in; - int i; - - if (!s) - goto fail; - - /* use feed output format name to find corresponding input format */ - fmt_in = av_find_input_format(feed->fmt->name); - if (!fmt_in) - goto fail; - - pb = avio_alloc_context(c->buffer, c->buffer_end - c->buffer, - 0, NULL, NULL, NULL, NULL); - pb->seekable = 0; - - s->pb = pb; - if (avformat_open_input(&s, c->stream->feed_filename, fmt_in, NULL) < 0) { - av_free(pb); - goto fail; - } - - /* Now we have the actual streams */ - if (s->nb_streams != feed->nb_streams) { - avformat_close_input(&s); - av_free(pb); - http_log("Feed '%s' stream number does not match registered feed\n", - c->stream->feed_filename); - goto fail; - } - - for (i = 0; i < s->nb_streams; i++) { - AVStream *fst = feed->streams[i]; - AVStream *st = s->streams[i]; - avcodec_copy_context(fst->codec, st->codec); - } - - avformat_close_input(&s); - av_free(pb); - } - c->buffer_ptr = c->buffer; - } - - return 0; - fail: - c->stream->feed_opened = 0; - close(c->feed_fd); - /* wake up any waiting connections to stop waiting for feed */ - for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) { - if (c1->state == HTTPSTATE_WAIT_FEED && - c1->stream->feed == c->stream->feed) - c1->state = HTTPSTATE_SEND_DATA_TRAILER; - } - return -1; -} - -/********************************************************************/ -/* RTSP handling */ - -static void rtsp_reply_header(HTTPContext *c, enum RTSPStatusCode error_number) -{ - const char *str; - time_t ti; - struct tm *tm; - char buf2[32]; - - switch(error_number) { - case RTSP_STATUS_OK: - str = "OK"; - break; - case RTSP_STATUS_METHOD: - str = "Method Not Allowed"; - break; - case RTSP_STATUS_BANDWIDTH: - str = "Not Enough Bandwidth"; - break; - case RTSP_STATUS_SESSION: - str = "Session Not Found"; - break; - case RTSP_STATUS_STATE: - str = "Method Not Valid in This State"; - break; - case RTSP_STATUS_AGGREGATE: - str = "Aggregate operation not allowed"; - break; - case RTSP_STATUS_ONLY_AGGREGATE: - str = "Only aggregate operation allowed"; - break; - case RTSP_STATUS_TRANSPORT: - str = "Unsupported transport"; - break; - case RTSP_STATUS_INTERNAL: - str = "Internal Server Error"; - break; - case RTSP_STATUS_SERVICE: - str = "Service Unavailable"; - break; - case RTSP_STATUS_VERSION: - str = "RTSP Version not supported"; - break; - default: - str = "Unknown Error"; - break; - } - - avio_printf(c->pb, "RTSP/1.0 %d %s\r\n", error_number, str); - avio_printf(c->pb, "CSeq: %d\r\n", c->seq); - - /* output GMT time */ - ti = time(NULL); - tm = gmtime(&ti); - strftime(buf2, sizeof(buf2), "%a, %d %b %Y %H:%M:%S", tm); - avio_printf(c->pb, "Date: %s GMT\r\n", buf2); -} - -static void rtsp_reply_error(HTTPContext *c, enum RTSPStatusCode error_number) -{ - rtsp_reply_header(c, error_number); - avio_printf(c->pb, "\r\n"); -} - -static int rtsp_parse_request(HTTPContext *c) -{ - const char *p, *p1, *p2; - char cmd[32]; - char url[1024]; - char protocol[32]; - char line[1024]; - int len; - RTSPMessageHeader header1 = { 0 }, *header = &header1; - - c->buffer_ptr[0] = '\0'; - p = c->buffer; - - get_word(cmd, sizeof(cmd), &p); - get_word(url, sizeof(url), &p); - get_word(protocol, sizeof(protocol), &p); - - av_strlcpy(c->method, cmd, sizeof(c->method)); - av_strlcpy(c->url, url, sizeof(c->url)); - av_strlcpy(c->protocol, protocol, sizeof(c->protocol)); - - if (avio_open_dyn_buf(&c->pb) < 0) { - /* XXX: cannot do more */ - c->pb = NULL; /* safety */ - return -1; - } - - /* check version name */ - if (strcmp(protocol, "RTSP/1.0") != 0) { - rtsp_reply_error(c, RTSP_STATUS_VERSION); - goto the_end; - } - - /* parse each header line */ - /* skip to next line */ - while (*p != '\n' && *p != '\0') - p++; - if (*p == '\n') - p++; - while (*p != '\0') { - p1 = memchr(p, '\n', (char *)c->buffer_ptr - p); - if (!p1) - break; - p2 = p1; - if (p2 > p && p2[-1] == '\r') - p2--; - /* skip empty line */ - if (p2 == p) - break; - len = p2 - p; - if (len > sizeof(line) - 1) - len = sizeof(line) - 1; - memcpy(line, p, len); - line[len] = '\0'; - ff_rtsp_parse_line(header, line, NULL, NULL); - p = p1 + 1; - } - - /* handle sequence number */ - c->seq = header->seq; - - if (!strcmp(cmd, "DESCRIBE")) - rtsp_cmd_describe(c, url); - else if (!strcmp(cmd, "OPTIONS")) - rtsp_cmd_options(c, url); - else if (!strcmp(cmd, "SETUP")) - rtsp_cmd_setup(c, url, header); - else if (!strcmp(cmd, "PLAY")) - rtsp_cmd_play(c, url, header); - else if (!strcmp(cmd, "PAUSE")) - rtsp_cmd_pause(c, url, header); - else if (!strcmp(cmd, "TEARDOWN")) - rtsp_cmd_teardown(c, url, header); - else - rtsp_reply_error(c, RTSP_STATUS_METHOD); - - the_end: - len = avio_close_dyn_buf(c->pb, &c->pb_buffer); - c->pb = NULL; /* safety */ - if (len < 0) { - /* XXX: cannot do more */ - return -1; - } - c->buffer_ptr = c->pb_buffer; - c->buffer_end = c->pb_buffer + len; - c->state = RTSPSTATE_SEND_REPLY; - return 0; -} - -static int prepare_sdp_description(FFStream *stream, uint8_t **pbuffer, - struct in_addr my_ip) -{ - AVFormatContext *avc; - AVStream *avs = NULL; - int i; - - avc = avformat_alloc_context(); - if (avc == NULL) { - return -1; - } - av_dict_set(&avc->metadata, "title", - stream->title[0] ? stream->title : "No Title", 0); - avc->nb_streams = stream->nb_streams; - if (stream->is_multicast) { - snprintf(avc->filename, 1024, "rtp://%s:%d?multicast=1?ttl=%d", - inet_ntoa(stream->multicast_ip), - stream->multicast_port, stream->multicast_ttl); - } else { - snprintf(avc->filename, 1024, "rtp://0.0.0.0"); - } - - if (avc->nb_streams >= INT_MAX/sizeof(*avc->streams) || - !(avc->streams = av_malloc(avc->nb_streams * sizeof(*avc->streams)))) - goto sdp_done; - if (avc->nb_streams >= INT_MAX/sizeof(*avs) || - !(avs = av_malloc(avc->nb_streams * sizeof(*avs)))) - goto sdp_done; - - for(i = 0; i < stream->nb_streams; i++) { - avc->streams[i] = &avs[i]; - avc->streams[i]->codec = stream->streams[i]->codec; - } - *pbuffer = av_mallocz(2048); - av_sdp_create(&avc, 1, *pbuffer, 2048); - - sdp_done: - av_free(avc->streams); - av_dict_free(&avc->metadata); - av_free(avc); - av_free(avs); - - return strlen(*pbuffer); -} - -static void rtsp_cmd_options(HTTPContext *c, const char *url) -{ -// rtsp_reply_header(c, RTSP_STATUS_OK); - avio_printf(c->pb, "RTSP/1.0 %d %s\r\n", RTSP_STATUS_OK, "OK"); - avio_printf(c->pb, "CSeq: %d\r\n", c->seq); - avio_printf(c->pb, "Public: %s\r\n", "OPTIONS, DESCRIBE, SETUP, TEARDOWN, PLAY, PAUSE"); - avio_printf(c->pb, "\r\n"); -} - -static void rtsp_cmd_describe(HTTPContext *c, const char *url) -{ - FFStream *stream; - char path1[1024]; - const char *path; - uint8_t *content; - int content_length; - socklen_t len; - struct sockaddr_in my_addr; - - /* find which url is asked */ - av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url); - path = path1; - if (*path == '/') - path++; - - for(stream = first_stream; stream != NULL; stream = stream->next) { - if (!stream->is_feed && - stream->fmt && !strcmp(stream->fmt->name, "rtp") && - !strcmp(path, stream->filename)) { - goto found; - } - } - /* no stream found */ - rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */ - return; - - found: - /* prepare the media description in sdp format */ - - /* get the host IP */ - len = sizeof(my_addr); - getsockname(c->fd, (struct sockaddr *)&my_addr, &len); - content_length = prepare_sdp_description(stream, &content, my_addr.sin_addr); - if (content_length < 0) { - rtsp_reply_error(c, RTSP_STATUS_INTERNAL); - return; - } - rtsp_reply_header(c, RTSP_STATUS_OK); - avio_printf(c->pb, "Content-Base: %s/\r\n", url); - avio_printf(c->pb, "Content-Type: application/sdp\r\n"); - avio_printf(c->pb, "Content-Length: %d\r\n", content_length); - avio_printf(c->pb, "\r\n"); - avio_write(c->pb, content, content_length); - av_free(content); -} - -static HTTPContext *find_rtp_session(const char *session_id) -{ - HTTPContext *c; - - if (session_id[0] == '\0') - return NULL; - - for(c = first_http_ctx; c != NULL; c = c->next) { - if (!strcmp(c->session_id, session_id)) - return c; - } - return NULL; -} - -static RTSPTransportField *find_transport(RTSPMessageHeader *h, enum RTSPLowerTransport lower_transport) -{ - RTSPTransportField *th; - int i; - - for(i=0;i<h->nb_transports;i++) { - th = &h->transports[i]; - if (th->lower_transport == lower_transport) - return th; - } - return NULL; -} - -static void rtsp_cmd_setup(HTTPContext *c, const char *url, - RTSPMessageHeader *h) -{ - FFStream *stream; - int stream_index, rtp_port, rtcp_port; - char buf[1024]; - char path1[1024]; - const char *path; - HTTPContext *rtp_c; - RTSPTransportField *th; - struct sockaddr_in dest_addr; - RTSPActionServerSetup setup; - - /* find which url is asked */ - av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url); - path = path1; - if (*path == '/') - path++; - - /* now check each stream */ - for(stream = first_stream; stream != NULL; stream = stream->next) { - if (!stream->is_feed && - stream->fmt && !strcmp(stream->fmt->name, "rtp")) { - /* accept aggregate filenames only if single stream */ - if (!strcmp(path, stream->filename)) { - if (stream->nb_streams != 1) { - rtsp_reply_error(c, RTSP_STATUS_AGGREGATE); - return; - } - stream_index = 0; - goto found; - } - - for(stream_index = 0; stream_index < stream->nb_streams; - stream_index++) { - snprintf(buf, sizeof(buf), "%s/streamid=%d", - stream->filename, stream_index); - if (!strcmp(path, buf)) - goto found; - } - } - } - /* no stream found */ - rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */ - return; - found: - - /* generate session id if needed */ - if (h->session_id[0] == '\0') - snprintf(h->session_id, sizeof(h->session_id), "%08x%08x", - av_lfg_get(&random_state), av_lfg_get(&random_state)); - - /* find rtp session, and create it if none found */ - rtp_c = find_rtp_session(h->session_id); - if (!rtp_c) { - /* always prefer UDP */ - th = find_transport(h, RTSP_LOWER_TRANSPORT_UDP); - if (!th) { - th = find_transport(h, RTSP_LOWER_TRANSPORT_TCP); - if (!th) { - rtsp_reply_error(c, RTSP_STATUS_TRANSPORT); - return; - } - } - - rtp_c = rtp_new_connection(&c->from_addr, stream, h->session_id, - th->lower_transport); - if (!rtp_c) { - rtsp_reply_error(c, RTSP_STATUS_BANDWIDTH); - return; - } - - /* open input stream */ - if (open_input_stream(rtp_c, "") < 0) { - rtsp_reply_error(c, RTSP_STATUS_INTERNAL); - return; - } - } - - /* test if stream is OK (test needed because several SETUP needs - to be done for a given file) */ - if (rtp_c->stream != stream) { - rtsp_reply_error(c, RTSP_STATUS_SERVICE); - return; - } - - /* test if stream is already set up */ - if (rtp_c->rtp_ctx[stream_index]) { - rtsp_reply_error(c, RTSP_STATUS_STATE); - return; - } - - /* check transport */ - th = find_transport(h, rtp_c->rtp_protocol); - if (!th || (th->lower_transport == RTSP_LOWER_TRANSPORT_UDP && - th->client_port_min <= 0)) { - rtsp_reply_error(c, RTSP_STATUS_TRANSPORT); - return; - } - - /* setup default options */ - setup.transport_option[0] = '\0'; - dest_addr = rtp_c->from_addr; - dest_addr.sin_port = htons(th->client_port_min); - - /* setup stream */ - if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, c) < 0) { - rtsp_reply_error(c, RTSP_STATUS_TRANSPORT); - return; - } - - /* now everything is OK, so we can send the connection parameters */ - rtsp_reply_header(c, RTSP_STATUS_OK); - /* session ID */ - avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id); - - switch(rtp_c->rtp_protocol) { - case RTSP_LOWER_TRANSPORT_UDP: - rtp_port = ff_rtp_get_local_rtp_port(rtp_c->rtp_handles[stream_index]); - rtcp_port = ff_rtp_get_local_rtcp_port(rtp_c->rtp_handles[stream_index]); - avio_printf(c->pb, "Transport: RTP/AVP/UDP;unicast;" - "client_port=%d-%d;server_port=%d-%d", - th->client_port_min, th->client_port_max, - rtp_port, rtcp_port); - break; - case RTSP_LOWER_TRANSPORT_TCP: - avio_printf(c->pb, "Transport: RTP/AVP/TCP;interleaved=%d-%d", - stream_index * 2, stream_index * 2 + 1); - break; - default: - break; - } - if (setup.transport_option[0] != '\0') - avio_printf(c->pb, ";%s", setup.transport_option); - avio_printf(c->pb, "\r\n"); - - - avio_printf(c->pb, "\r\n"); -} - - -/* find an rtp connection by using the session ID. Check consistency - with filename */ -static HTTPContext *find_rtp_session_with_url(const char *url, - const char *session_id) -{ - HTTPContext *rtp_c; - char path1[1024]; - const char *path; - char buf[1024]; - int s, len; - - rtp_c = find_rtp_session(session_id); - if (!rtp_c) - return NULL; - - /* find which url is asked */ - av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url); - path = path1; - if (*path == '/') - path++; - if(!strcmp(path, rtp_c->stream->filename)) return rtp_c; - for(s=0; s<rtp_c->stream->nb_streams; ++s) { - snprintf(buf, sizeof(buf), "%s/streamid=%d", - rtp_c->stream->filename, s); - if(!strncmp(path, buf, sizeof(buf))) { - // XXX: Should we reply with RTSP_STATUS_ONLY_AGGREGATE if nb_streams>1? - return rtp_c; - } - } - len = strlen(path); - if (len > 0 && path[len - 1] == '/' && - !strncmp(path, rtp_c->stream->filename, len - 1)) - return rtp_c; - return NULL; -} - -static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPMessageHeader *h) -{ - HTTPContext *rtp_c; - - rtp_c = find_rtp_session_with_url(url, h->session_id); - if (!rtp_c) { - rtsp_reply_error(c, RTSP_STATUS_SESSION); - return; - } - - if (rtp_c->state != HTTPSTATE_SEND_DATA && - rtp_c->state != HTTPSTATE_WAIT_FEED && - rtp_c->state != HTTPSTATE_READY) { - rtsp_reply_error(c, RTSP_STATUS_STATE); - return; - } - - rtp_c->state = HTTPSTATE_SEND_DATA; - - /* now everything is OK, so we can send the connection parameters */ - rtsp_reply_header(c, RTSP_STATUS_OK); - /* session ID */ - avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id); - avio_printf(c->pb, "\r\n"); -} - -static void rtsp_cmd_pause(HTTPContext *c, const char *url, RTSPMessageHeader *h) -{ - HTTPContext *rtp_c; - - rtp_c = find_rtp_session_with_url(url, h->session_id); - if (!rtp_c) { - rtsp_reply_error(c, RTSP_STATUS_SESSION); - return; - } - - if (rtp_c->state != HTTPSTATE_SEND_DATA && - rtp_c->state != HTTPSTATE_WAIT_FEED) { - rtsp_reply_error(c, RTSP_STATUS_STATE); - return; - } - - rtp_c->state = HTTPSTATE_READY; - rtp_c->first_pts = AV_NOPTS_VALUE; - /* now everything is OK, so we can send the connection parameters */ - rtsp_reply_header(c, RTSP_STATUS_OK); - /* session ID */ - avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id); - avio_printf(c->pb, "\r\n"); -} - -static void rtsp_cmd_teardown(HTTPContext *c, const char *url, RTSPMessageHeader *h) -{ - HTTPContext *rtp_c; - - rtp_c = find_rtp_session_with_url(url, h->session_id); - if (!rtp_c) { - rtsp_reply_error(c, RTSP_STATUS_SESSION); - return; - } - - /* now everything is OK, so we can send the connection parameters */ - rtsp_reply_header(c, RTSP_STATUS_OK); - /* session ID */ - avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id); - avio_printf(c->pb, "\r\n"); - - /* abort the session */ - close_connection(rtp_c); -} - - -/********************************************************************/ -/* RTP handling */ - -static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr, - FFStream *stream, const char *session_id, - enum RTSPLowerTransport rtp_protocol) -{ - HTTPContext *c = NULL; - const char *proto_str; - - /* XXX: should output a warning page when coming - close to the connection limit */ - if (nb_connections >= nb_max_connections) - goto fail; - - /* add a new connection */ - c = av_mallocz(sizeof(HTTPContext)); - if (!c) - goto fail; - - c->fd = -1; - c->poll_entry = NULL; - c->from_addr = *from_addr; - c->buffer_size = IOBUFFER_INIT_SIZE; - c->buffer = av_malloc(c->buffer_size); - if (!c->buffer) - goto fail; - nb_connections++; - c->stream = stream; - av_strlcpy(c->session_id, session_id, sizeof(c->session_id)); - c->state = HTTPSTATE_READY; - c->is_packetized = 1; - c->rtp_protocol = rtp_protocol; - - /* protocol is shown in statistics */ - switch(c->rtp_protocol) { - case RTSP_LOWER_TRANSPORT_UDP_MULTICAST: - proto_str = "MCAST"; - break; - case RTSP_LOWER_TRANSPORT_UDP: - proto_str = "UDP"; - break; - case RTSP_LOWER_TRANSPORT_TCP: - proto_str = "TCP"; - break; - default: - proto_str = "???"; - break; - } - av_strlcpy(c->protocol, "RTP/", sizeof(c->protocol)); - av_strlcat(c->protocol, proto_str, sizeof(c->protocol)); - - current_bandwidth += stream->bandwidth; - - c->next = first_http_ctx; - first_http_ctx = c; - return c; - - fail: - if (c) { - av_free(c->buffer); - av_free(c); - } - return NULL; -} - -/* add a new RTP stream in an RTP connection (used in RTSP SETUP - command). If RTP/TCP protocol is used, TCP connection 'rtsp_c' is - used. */ -static int rtp_new_av_stream(HTTPContext *c, - int stream_index, struct sockaddr_in *dest_addr, - HTTPContext *rtsp_c) -{ - AVFormatContext *ctx; - AVStream *st; - char *ipaddr; - URLContext *h = NULL; - uint8_t *dummy_buf; - int max_packet_size; - - /* now we can open the relevant output stream */ - ctx = avformat_alloc_context(); - if (!ctx) - return -1; - ctx->oformat = av_guess_format("rtp", NULL, NULL); - - st = av_mallocz(sizeof(AVStream)); - if (!st) - goto fail; - ctx->nb_streams = 1; - ctx->streams = av_mallocz(sizeof(AVStream *) * ctx->nb_streams); - if (!ctx->streams) - goto fail; - ctx->streams[0] = st; - - if (!c->stream->feed || - c->stream->feed == c->stream) - memcpy(st, c->stream->streams[stream_index], sizeof(AVStream)); - else - memcpy(st, - c->stream->feed->streams[c->stream->feed_streams[stream_index]], - sizeof(AVStream)); - st->priv_data = NULL; - - /* build destination RTP address */ - ipaddr = inet_ntoa(dest_addr->sin_addr); - - switch(c->rtp_protocol) { - case RTSP_LOWER_TRANSPORT_UDP: - case RTSP_LOWER_TRANSPORT_UDP_MULTICAST: - /* RTP/UDP case */ - - /* XXX: also pass as parameter to function ? */ - if (c->stream->is_multicast) { - int ttl; - ttl = c->stream->multicast_ttl; - if (!ttl) - ttl = 16; - snprintf(ctx->filename, sizeof(ctx->filename), - "rtp://%s:%d?multicast=1&ttl=%d", - ipaddr, ntohs(dest_addr->sin_port), ttl); - } else { - snprintf(ctx->filename, sizeof(ctx->filename), - "rtp://%s:%d", ipaddr, ntohs(dest_addr->sin_port)); - } - - if (ffurl_open(&h, ctx->filename, AVIO_FLAG_WRITE, NULL, NULL) < 0) - goto fail; - c->rtp_handles[stream_index] = h; - max_packet_size = h->max_packet_size; - break; - case RTSP_LOWER_TRANSPORT_TCP: - /* RTP/TCP case */ - c->rtsp_c = rtsp_c; - max_packet_size = RTSP_TCP_MAX_PACKET_SIZE; - break; - default: - goto fail; - } - - http_log("%s:%d - - \"PLAY %s/streamid=%d %s\"\n", - ipaddr, ntohs(dest_addr->sin_port), - c->stream->filename, stream_index, c->protocol); - - /* normally, no packets should be output here, but the packet size may be checked */ - if (ffio_open_dyn_packet_buf(&ctx->pb, max_packet_size) < 0) { - /* XXX: close stream */ - goto fail; - } - if (avformat_write_header(ctx, NULL) < 0) { - fail: - if (h) - ffurl_close(h); - av_free(ctx); - return -1; - } - avio_close_dyn_buf(ctx->pb, &dummy_buf); - av_free(dummy_buf); - - c->rtp_ctx[stream_index] = ctx; - return 0; -} - -/********************************************************************/ -/* avserver initialization */ - -static AVStream *add_av_stream1(FFStream *stream, AVCodecContext *codec, int copy) -{ - AVStream *fst; - - fst = av_mallocz(sizeof(AVStream)); - if (!fst) - return NULL; - if (copy) { - fst->codec = avcodec_alloc_context3(NULL); - memcpy(fst->codec, codec, sizeof(AVCodecContext)); - if (codec->extradata_size) { - fst->codec->extradata = av_malloc(codec->extradata_size); - memcpy(fst->codec->extradata, codec->extradata, - codec->extradata_size); - } - } else { - /* live streams must use the actual feed's codec since it may be - * updated later to carry extradata needed by the streams. - */ - fst->codec = codec; - } - fst->priv_data = av_mallocz(sizeof(FeedData)); - fst->index = stream->nb_streams; - avpriv_set_pts_info(fst, 33, 1, 90000); - fst->sample_aspect_ratio = codec->sample_aspect_ratio; - stream->streams[stream->nb_streams++] = fst; - return fst; -} - -/* return the stream number in the feed */ -static int add_av_stream(FFStream *feed, AVStream *st) -{ - AVStream *fst; - AVCodecContext *av, *av1; - int i; - - av = st->codec; - for(i=0;i<feed->nb_streams;i++) { - st = feed->streams[i]; - av1 = st->codec; - if (av1->codec_id == av->codec_id && - av1->codec_type == av->codec_type && - av1->bit_rate == av->bit_rate) { - - switch(av->codec_type) { - case AVMEDIA_TYPE_AUDIO: - if (av1->channels == av->channels && - av1->sample_rate == av->sample_rate) - return i; - break; - case AVMEDIA_TYPE_VIDEO: - if (av1->width == av->width && - av1->height == av->height && - av1->time_base.den == av->time_base.den && - av1->time_base.num == av->time_base.num && - av1->gop_size == av->gop_size) - return i; - break; - default: - abort(); - } - } - } - - fst = add_av_stream1(feed, av, 0); - if (!fst) - return -1; - return feed->nb_streams - 1; -} - -static void remove_stream(FFStream *stream) -{ - FFStream **ps; - ps = &first_stream; - while (*ps != NULL) { - if (*ps == stream) - *ps = (*ps)->next; - else - ps = &(*ps)->next; - } -} - -/* specific mpeg4 handling : we extract the raw parameters */ -static void extract_mpeg4_header(AVFormatContext *infile) -{ - int mpeg4_count, i, size; - AVPacket pkt; - AVStream *st; - const uint8_t *p; - - infile->flags |= AVFMT_FLAG_NOFILLIN | AVFMT_FLAG_NOPARSE; - - mpeg4_count = 0; - for(i=0;i<infile->nb_streams;i++) { - st = infile->streams[i]; - if (st->codec->codec_id == AV_CODEC_ID_MPEG4 && - st->codec->extradata_size == 0) { - mpeg4_count++; - } - } - if (!mpeg4_count) - return; - - printf("MPEG4 without extra data: trying to find header in %s\n", infile->filename); - while (mpeg4_count > 0) { - if (av_read_frame(infile, &pkt) < 0) - break; - st = infile->streams[pkt.stream_index]; - if (st->codec->codec_id == AV_CODEC_ID_MPEG4 && - st->codec->extradata_size == 0) { - av_freep(&st->codec->extradata); - /* fill extradata with the header */ - /* XXX: we make hard suppositions here ! */ - p = pkt.data; - while (p < pkt.data + pkt.size - 4) { - /* stop when vop header is found */ - if (p[0] == 0x00 && p[1] == 0x00 && - p[2] == 0x01 && p[3] == 0xb6) { - size = p - pkt.data; - // av_hex_dump_log(infile, AV_LOG_DEBUG, pkt.data, size); - st->codec->extradata = av_malloc(size); - st->codec->extradata_size = size; - memcpy(st->codec->extradata, pkt.data, size); - break; - } - p++; - } - mpeg4_count--; - } - av_free_packet(&pkt); - } -} - -/* compute the needed AVStream for each file */ -static void build_file_streams(void) -{ - FFStream *stream, *stream_next; - int i, ret; - - /* gather all streams */ - for(stream = first_stream; stream != NULL; stream = stream_next) { - AVFormatContext *infile = NULL; - stream_next = stream->next; - if (stream->stream_type == STREAM_TYPE_LIVE && - !stream->feed) { - /* the stream comes from a file */ - /* try to open the file */ - /* open stream */ - if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) { - /* specific case : if transport stream output to RTP, - we use a raw transport stream reader */ - av_dict_set(&stream->in_opts, "mpeg2ts_compute_pcr", "1", 0); - } - - http_log("Opening file '%s'\n", stream->feed_filename); - if ((ret = avformat_open_input(&infile, stream->feed_filename, stream->ifmt, &stream->in_opts)) < 0) { - http_log("Could not open '%s': %d\n", stream->feed_filename, ret); - /* remove stream (no need to spend more time on it) */ - fail: - remove_stream(stream); - } else { - /* find all the AVStreams inside and reference them in - 'stream' */ - if (avformat_find_stream_info(infile, NULL) < 0) { - http_log("Could not find codec parameters from '%s'\n", - stream->feed_filename); - avformat_close_input(&infile); - goto fail; - } - extract_mpeg4_header(infile); - - for(i=0;i<infile->nb_streams;i++) - add_av_stream1(stream, infile->streams[i]->codec, 1); - - avformat_close_input(&infile); - } - } - } -} - -/* compute the needed AVStream for each feed */ -static void build_feed_streams(void) -{ - FFStream *stream, *feed; - int i; - - /* gather all streams */ - for(stream = first_stream; stream != NULL; stream = stream->next) { - feed = stream->feed; - if (feed) { - if (stream->is_feed) { - for(i=0;i<stream->nb_streams;i++) - stream->feed_streams[i] = i; - } else { - /* we handle a stream coming from a feed */ - for(i=0;i<stream->nb_streams;i++) - stream->feed_streams[i] = add_av_stream(feed, stream->streams[i]); - } - } - } - - /* create feed files if needed */ - for(feed = first_feed; feed != NULL; feed = feed->next_feed) { - int fd; - - if (avio_check(feed->feed_filename, AVIO_FLAG_READ) > 0) { - /* See if it matches */ - AVFormatContext *s = NULL; - int matches = 0; - - if (avformat_open_input(&s, feed->feed_filename, NULL, NULL) >= 0) { - /* Now see if it matches */ - if (s->nb_streams == feed->nb_streams) { - matches = 1; - for(i=0;i<s->nb_streams;i++) { - AVStream *sf, *ss; - sf = feed->streams[i]; - ss = s->streams[i]; - - if (sf->index != ss->index || - sf->id != ss->id) { - http_log("Index & Id do not match for stream %d (%s)\n", - i, feed->feed_filename); - matches = 0; - } else { - AVCodecContext *ccf, *ccs; - - ccf = sf->codec; - ccs = ss->codec; -#define CHECK_CODEC(x) (ccf->x != ccs->x) - - if (CHECK_CODEC(codec_id) || CHECK_CODEC(codec_type)) { - http_log("Codecs do not match for stream %d\n", i); - matches = 0; - } else if (CHECK_CODEC(bit_rate) || CHECK_CODEC(flags)) { - http_log("Codec bitrates do not match for stream %d\n", i); - matches = 0; - } else if (ccf->codec_type == AVMEDIA_TYPE_VIDEO) { - if (CHECK_CODEC(time_base.den) || - CHECK_CODEC(time_base.num) || - CHECK_CODEC(width) || - CHECK_CODEC(height)) { - http_log("Codec width, height and framerate do not match for stream %d\n", i); - matches = 0; - } - } else if (ccf->codec_type == AVMEDIA_TYPE_AUDIO) { - if (CHECK_CODEC(sample_rate) || - CHECK_CODEC(channels) || - CHECK_CODEC(frame_size)) { - http_log("Codec sample_rate, channels, frame_size do not match for stream %d\n", i); - matches = 0; - } - } else { - http_log("Unknown codec type\n"); - matches = 0; - } - } - if (!matches) - break; - } - } else - http_log("Deleting feed file '%s' as stream counts differ (%d != %d)\n", - feed->feed_filename, s->nb_streams, feed->nb_streams); - - avformat_close_input(&s); - } else - http_log("Deleting feed file '%s' as it appears to be corrupt\n", - feed->feed_filename); - - if (!matches) { - if (feed->readonly) { - http_log("Unable to delete feed file '%s' as it is marked readonly\n", - feed->feed_filename); - exit(1); - } - unlink(feed->feed_filename); - } - } - if (avio_check(feed->feed_filename, AVIO_FLAG_WRITE) <= 0) { - AVFormatContext s1 = {0}, *s = &s1; - - if (feed->readonly) { - http_log("Unable to create feed file '%s' as it is marked readonly\n", - feed->feed_filename); - exit(1); - } - - /* only write the header of the ffm file */ - if (avio_open(&s->pb, feed->feed_filename, AVIO_FLAG_WRITE) < 0) { - http_log("Could not open output feed file '%s'\n", - feed->feed_filename); - exit(1); - } - s->oformat = feed->fmt; - s->nb_streams = feed->nb_streams; - s->streams = feed->streams; - if (avformat_write_header(s, NULL) < 0) { - http_log("Container doesn't supports the required parameters\n"); - exit(1); - } - /* XXX: need better api */ - av_freep(&s->priv_data); - avio_close(s->pb); - } - /* get feed size and write index */ - fd = open(feed->feed_filename, O_RDONLY); - if (fd < 0) { - http_log("Could not open output feed file '%s'\n", - feed->feed_filename); - exit(1); - } - - feed->feed_write_index = FFMAX(ffm_read_write_index(fd), FFM_PACKET_SIZE); - feed->feed_size = lseek(fd, 0, SEEK_END); - /* ensure that we do not wrap before the end of file */ - if (feed->feed_max_size && feed->feed_max_size < feed->feed_size) - feed->feed_max_size = feed->feed_size; - - close(fd); - } -} - -/* compute the bandwidth used by each stream */ -static void compute_bandwidth(void) -{ - unsigned bandwidth; - int i; - FFStream *stream; - - for(stream = first_stream; stream != NULL; stream = stream->next) { - bandwidth = 0; - for(i=0;i<stream->nb_streams;i++) { - AVStream *st = stream->streams[i]; - switch(st->codec->codec_type) { - case AVMEDIA_TYPE_AUDIO: - case AVMEDIA_TYPE_VIDEO: - bandwidth += st->codec->bit_rate; - break; - default: - break; - } - } - stream->bandwidth = (bandwidth + 999) / 1000; - } -} - -/* add a codec and set the default parameters */ -static void add_codec(FFStream *stream, AVCodecContext *av) -{ - AVStream *st; - - /* compute default parameters */ - switch(av->codec_type) { - case AVMEDIA_TYPE_AUDIO: - if (av->bit_rate == 0) - av->bit_rate = 64000; - if (av->sample_rate == 0) - av->sample_rate = 22050; - if (av->channels == 0) - av->channels = 1; - break; - case AVMEDIA_TYPE_VIDEO: - if (av->bit_rate == 0) - av->bit_rate = 64000; - if (av->time_base.num == 0){ - av->time_base.den = 5; - av->time_base.num = 1; - } - if (av->width == 0 || av->height == 0) { - av->width = 160; - av->height = 128; - } - /* Bitrate tolerance is less for streaming */ - if (av->bit_rate_tolerance == 0) - av->bit_rate_tolerance = FFMAX(av->bit_rate / 4, - (int64_t)av->bit_rate*av->time_base.num/av->time_base.den); - if (av->qmin == 0) - av->qmin = 3; - if (av->qmax == 0) - av->qmax = 31; - if (av->max_qdiff == 0) - av->max_qdiff = 3; - av->qcompress = 0.5; - av->qblur = 0.5; - - if (!av->nsse_weight) - av->nsse_weight = 8; - - av->frame_skip_cmp = FF_CMP_DCTMAX; - if (!av->me_method) - av->me_method = ME_EPZS; - av->rc_buffer_aggressivity = 1.0; - - if (!av->rc_eq) - av->rc_eq = "tex^qComp"; - if (!av->i_quant_factor) - av->i_quant_factor = -0.8; - if (!av->b_quant_factor) - av->b_quant_factor = 1.25; - if (!av->b_quant_offset) - av->b_quant_offset = 1.25; - if (!av->rc_max_rate) - av->rc_max_rate = av->bit_rate * 2; - - if (av->rc_max_rate && !av->rc_buffer_size) { - av->rc_buffer_size = av->rc_max_rate; - } - - - break; - default: - abort(); - } - - st = av_mallocz(sizeof(AVStream)); - if (!st) - return; - st->codec = avcodec_alloc_context3(NULL); - stream->streams[stream->nb_streams++] = st; - memcpy(st->codec, av, sizeof(AVCodecContext)); -} - -static enum AVCodecID opt_audio_codec(const char *arg) -{ - AVCodec *p= avcodec_find_encoder_by_name(arg); - - if (p == NULL || p->type != AVMEDIA_TYPE_AUDIO) - return AV_CODEC_ID_NONE; - - return p->id; -} - -static enum AVCodecID opt_video_codec(const char *arg) -{ - AVCodec *p= avcodec_find_encoder_by_name(arg); - - if (p == NULL || p->type != AVMEDIA_TYPE_VIDEO) - return AV_CODEC_ID_NONE; - - return p->id; -} - -static int avserver_opt_default(const char *opt, const char *arg, - AVCodecContext *avctx, int type) -{ - int ret = 0; - const AVOption *o = av_opt_find(avctx, opt, NULL, type, 0); - if(o) - ret = av_opt_set(avctx, opt, arg, 0); - return ret; -} - -static int avserver_opt_preset(const char *arg, - AVCodecContext *avctx, int type, - enum AVCodecID *audio_id, enum AVCodecID *video_id) -{ - FILE *f=NULL; - char filename[1000], tmp[1000], tmp2[1000], line[1000]; - int ret = 0; - AVCodec *codec = avcodec_find_encoder(avctx->codec_id); - - if (!(f = get_preset_file(filename, sizeof(filename), arg, 0, - codec ? codec->name : NULL))) { - fprintf(stderr, "File for preset '%s' not found\n", arg); - return 1; - } - - while(!feof(f)){ - int e= fscanf(f, "%999[^\n]\n", line) - 1; - if(line[0] == '#' && !e) - continue; - e|= sscanf(line, "%999[^=]=%999[^\n]\n", tmp, tmp2) - 2; - if(e){ - fprintf(stderr, "%s: Invalid syntax: '%s'\n", filename, line); - ret = 1; - break; - } - if(!strcmp(tmp, "acodec")){ - *audio_id = opt_audio_codec(tmp2); - }else if(!strcmp(tmp, "vcodec")){ - *video_id = opt_video_codec(tmp2); - }else if(!strcmp(tmp, "scodec")){ - /* opt_subtitle_codec(tmp2); */ - }else if(avserver_opt_default(tmp, tmp2, avctx, type) < 0){ - fprintf(stderr, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n", filename, line, tmp, tmp2); - ret = 1; - break; - } - } - - fclose(f); - - return ret; -} - -static AVOutputFormat *avserver_guess_format(const char *short_name, const char *filename, - const char *mime_type) -{ - AVOutputFormat *fmt = av_guess_format(short_name, filename, mime_type); - - if (fmt) { - AVOutputFormat *stream_fmt; - char stream_format_name[64]; - - snprintf(stream_format_name, sizeof(stream_format_name), "%s_stream", fmt->name); - stream_fmt = av_guess_format(stream_format_name, NULL, NULL); - - if (stream_fmt) - fmt = stream_fmt; - } - - return fmt; -} - -static void report_config_error(const char *filename, int line_num, int *errors, const char *fmt, ...) -{ - va_list vl; - va_start(vl, fmt); - fprintf(stderr, "%s:%d: ", filename, line_num); - vfprintf(stderr, fmt, vl); - va_end(vl); - - (*errors)++; -} - -static int parse_ffconfig(const char *filename) -{ - FILE *f; - char line[1024]; - char cmd[64]; - char arg[1024]; - const char *p; - int val, errors, line_num; - FFStream **last_stream, *stream, *redirect; - FFStream **last_feed, *feed, *s; - AVCodecContext audio_enc, video_enc; - enum AVCodecID audio_id, video_id; - - f = fopen(filename, "r"); - if (!f) { - perror(filename); - return -1; - } - - errors = 0; - line_num = 0; - first_stream = NULL; - last_stream = &first_stream; - first_feed = NULL; - last_feed = &first_feed; - stream = NULL; - feed = NULL; - redirect = NULL; - audio_id = AV_CODEC_ID_NONE; - video_id = AV_CODEC_ID_NONE; - -#define ERROR(...) report_config_error(filename, line_num, &errors, __VA_ARGS__) - for(;;) { - if (fgets(line, sizeof(line), f) == NULL) - break; - line_num++; - p = line; - while (av_isspace(*p)) - p++; - if (*p == '\0' || *p == '#') - continue; - - get_arg(cmd, sizeof(cmd), &p); - - if (!av_strcasecmp(cmd, "Port")) { - get_arg(arg, sizeof(arg), &p); - val = atoi(arg); - if (val < 1 || val > 65536) { - ERROR("Invalid_port: %s\n", arg); - } - my_http_addr.sin_port = htons(val); - } else if (!av_strcasecmp(cmd, "BindAddress")) { - get_arg(arg, sizeof(arg), &p); - if (resolve_host(&my_http_addr.sin_addr, arg) != 0) { - ERROR("%s:%d: Invalid host/IP address: %s\n", arg); - } - } else if (!av_strcasecmp(cmd, "RTSPPort")) { - get_arg(arg, sizeof(arg), &p); - val = atoi(arg); - if (val < 1 || val > 65536) { - ERROR("%s:%d: Invalid port: %s\n", arg); - } - my_rtsp_addr.sin_port = htons(atoi(arg)); - } else if (!av_strcasecmp(cmd, "RTSPBindAddress")) { - get_arg(arg, sizeof(arg), &p); - if (resolve_host(&my_rtsp_addr.sin_addr, arg) != 0) { - ERROR("Invalid host/IP address: %s\n", arg); - } - } else if (!av_strcasecmp(cmd, "MaxHTTPConnections")) { - get_arg(arg, sizeof(arg), &p); - val = atoi(arg); - if (val < 1 || val > 65536) { - ERROR("Invalid MaxHTTPConnections: %s\n", arg); - } - nb_max_http_connections = val; - } else if (!av_strcasecmp(cmd, "MaxClients")) { - get_arg(arg, sizeof(arg), &p); - val = atoi(arg); - if (val < 1 || val > nb_max_http_connections) { - ERROR("Invalid MaxClients: %s\n", arg); - } else { - nb_max_connections = val; - } - } else if (!av_strcasecmp(cmd, "MaxBandwidth")) { - int64_t llval; - get_arg(arg, sizeof(arg), &p); - llval = atoll(arg); - if (llval < 10 || llval > 10000000) { - ERROR("Invalid MaxBandwidth: %s\n", arg); - } else - max_bandwidth = llval; - } else if (!av_strcasecmp(cmd, "CustomLog")) { - if (!avserver_debug) - get_arg(logfilename, sizeof(logfilename), &p); - } else if (!av_strcasecmp(cmd, "<Feed")) { - /*********************************************/ - /* Feed related options */ - char *q; - if (stream || feed) { - ERROR("Already in a tag\n"); - } else { - feed = av_mallocz(sizeof(FFStream)); - get_arg(feed->filename, sizeof(feed->filename), &p); - q = strrchr(feed->filename, '>'); - if (*q) - *q = '\0'; - - for (s = first_feed; s; s = s->next) { - if (!strcmp(feed->filename, s->filename)) { - ERROR("Feed '%s' already registered\n", s->filename); - } - } - - feed->fmt = av_guess_format("ffm", NULL, NULL); - /* defaut feed file */ - snprintf(feed->feed_filename, sizeof(feed->feed_filename), - "/tmp/%s.ffm", feed->filename); - feed->feed_max_size = 5 * 1024 * 1024; - feed->is_feed = 1; - feed->feed = feed; /* self feeding :-) */ - - /* add in stream list */ - *last_stream = feed; - last_stream = &feed->next; - /* add in feed list */ - *last_feed = feed; - last_feed = &feed->next_feed; - } - } else if (!av_strcasecmp(cmd, "Launch")) { - if (feed) { - int i; - - feed->child_argv = av_mallocz(64 * sizeof(char *)); - - for (i = 0; i < 62; i++) { - get_arg(arg, sizeof(arg), &p); - if (!arg[0]) - break; - - feed->child_argv[i] = av_strdup(arg); - } - - feed->child_argv[i] = av_malloc(30 + strlen(feed->filename)); - - snprintf(feed->child_argv[i], 30+strlen(feed->filename), - "http://%s:%d/%s", - (my_http_addr.sin_addr.s_addr == INADDR_ANY) ? "127.0.0.1" : - inet_ntoa(my_http_addr.sin_addr), - ntohs(my_http_addr.sin_port), feed->filename); - } - } else if (!av_strcasecmp(cmd, "ReadOnlyFile")) { - if (feed) { - get_arg(feed->feed_filename, sizeof(feed->feed_filename), &p); - feed->readonly = 1; - } else if (stream) { - get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p); - } - } else if (!av_strcasecmp(cmd, "File")) { - if (feed) { - get_arg(feed->feed_filename, sizeof(feed->feed_filename), &p); - } else if (stream) - get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p); - } else if (!av_strcasecmp(cmd, "Truncate")) { - if (feed) { - get_arg(arg, sizeof(arg), &p); - feed->truncate = strtod(arg, NULL); - } - } else if (!av_strcasecmp(cmd, "FileMaxSize")) { - if (feed) { - char *p1; - double fsize; - - get_arg(arg, sizeof(arg), &p); - p1 = arg; - fsize = strtod(p1, &p1); - switch(av_toupper(*p1)) { - case 'K': - fsize *= 1024; - break; - case 'M': - fsize *= 1024 * 1024; - break; - case 'G': - fsize *= 1024 * 1024 * 1024; - break; - } - feed->feed_max_size = (int64_t)fsize; - if (feed->feed_max_size < FFM_PACKET_SIZE*4) { - ERROR("Feed max file size is too small, must be at least %d\n", FFM_PACKET_SIZE*4); - } - } - } else if (!av_strcasecmp(cmd, "</Feed>")) { - if (!feed) { - ERROR("No corresponding <Feed> for </Feed>\n"); - } - feed = NULL; - } else if (!av_strcasecmp(cmd, "<Stream")) { - /*********************************************/ - /* Stream related options */ - char *q; - if (stream || feed) { - ERROR("Already in a tag\n"); - } else { - FFStream *s; - stream = av_mallocz(sizeof(FFStream)); - get_arg(stream->filename, sizeof(stream->filename), &p); - q = strrchr(stream->filename, '>'); - if (*q) - *q = '\0'; - - for (s = first_stream; s; s = s->next) { - if (!strcmp(stream->filename, s->filename)) { - ERROR("Stream '%s' already registered\n", s->filename); - } - } - - stream->fmt = avserver_guess_format(NULL, stream->filename, NULL); - avcodec_get_context_defaults3(&video_enc, NULL); - avcodec_get_context_defaults3(&audio_enc, NULL); - audio_id = AV_CODEC_ID_NONE; - video_id = AV_CODEC_ID_NONE; - if (stream->fmt) { - audio_id = stream->fmt->audio_codec; - video_id = stream->fmt->video_codec; - } - - *last_stream = stream; - last_stream = &stream->next; - } - } else if (!av_strcasecmp(cmd, "Feed")) { - get_arg(arg, sizeof(arg), &p); - if (stream) { - FFStream *sfeed; - - sfeed = first_feed; - while (sfeed != NULL) { - if (!strcmp(sfeed->filename, arg)) - break; - sfeed = sfeed->next_feed; - } - if (!sfeed) - ERROR("feed '%s' not defined\n", arg); - else - stream->feed = sfeed; - } - } else if (!av_strcasecmp(cmd, "Format")) { - get_arg(arg, sizeof(arg), &p); - if (stream) { - if (!strcmp(arg, "status")) { - stream->stream_type = STREAM_TYPE_STATUS; - stream->fmt = NULL; - } else { - stream->stream_type = STREAM_TYPE_LIVE; - /* jpeg cannot be used here, so use single frame jpeg */ - if (!strcmp(arg, "jpeg")) - strcpy(arg, "mjpeg"); - stream->fmt = avserver_guess_format(arg, NULL, NULL); - if (!stream->fmt) { - ERROR("Unknown Format: %s\n", arg); - } - } - if (stream->fmt) { - audio_id = stream->fmt->audio_codec; - video_id = stream->fmt->video_codec; - } - } - } else if (!av_strcasecmp(cmd, "InputFormat")) { - get_arg(arg, sizeof(arg), &p); - if (stream) { - stream->ifmt = av_find_input_format(arg); - if (!stream->ifmt) { - ERROR("Unknown input format: %s\n", arg); - } - } - } else if (!av_strcasecmp(cmd, "FaviconURL")) { - if (stream && stream->stream_type == STREAM_TYPE_STATUS) { - get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p); - } else { - ERROR("FaviconURL only permitted for status streams\n"); - } - } else if (!av_strcasecmp(cmd, "Author")) { - if (stream) - get_arg(stream->author, sizeof(stream->author), &p); - } else if (!av_strcasecmp(cmd, "Comment")) { - if (stream) - get_arg(stream->comment, sizeof(stream->comment), &p); - } else if (!av_strcasecmp(cmd, "Copyright")) { - if (stream) - get_arg(stream->copyright, sizeof(stream->copyright), &p); - } else if (!av_strcasecmp(cmd, "Title")) { - if (stream) - get_arg(stream->title, sizeof(stream->title), &p); - } else if (!av_strcasecmp(cmd, "Preroll")) { - get_arg(arg, sizeof(arg), &p); - if (stream) - stream->prebuffer = atof(arg) * 1000; - } else if (!av_strcasecmp(cmd, "StartSendOnKey")) { - if (stream) - stream->send_on_key = 1; - } else if (!av_strcasecmp(cmd, "AudioCodec")) { - get_arg(arg, sizeof(arg), &p); - audio_id = opt_audio_codec(arg); - if (audio_id == AV_CODEC_ID_NONE) { - ERROR("Unknown AudioCodec: %s\n", arg); - } - } else if (!av_strcasecmp(cmd, "VideoCodec")) { - get_arg(arg, sizeof(arg), &p); - video_id = opt_video_codec(arg); - if (video_id == AV_CODEC_ID_NONE) { - ERROR("Unknown VideoCodec: %s\n", arg); - } - } else if (!av_strcasecmp(cmd, "MaxTime")) { - get_arg(arg, sizeof(arg), &p); - if (stream) - stream->max_time = atof(arg) * 1000; - } else if (!av_strcasecmp(cmd, "AudioBitRate")) { - get_arg(arg, sizeof(arg), &p); - if (stream) - audio_enc.bit_rate = lrintf(atof(arg) * 1000); - } else if (!av_strcasecmp(cmd, "AudioChannels")) { - get_arg(arg, sizeof(arg), &p); - if (stream) - audio_enc.channels = atoi(arg); - } else if (!av_strcasecmp(cmd, "AudioSampleRate")) { - get_arg(arg, sizeof(arg), &p); - if (stream) - audio_enc.sample_rate = atoi(arg); - } else if (!av_strcasecmp(cmd, "AudioQuality")) { - get_arg(arg, sizeof(arg), &p); - if (stream) { -// audio_enc.quality = atof(arg) * 1000; - } - } else if (!av_strcasecmp(cmd, "VideoBitRateRange")) { - if (stream) { - int minrate, maxrate; - - get_arg(arg, sizeof(arg), &p); - - if (sscanf(arg, "%d-%d", &minrate, &maxrate) == 2) { - video_enc.rc_min_rate = minrate * 1000; - video_enc.rc_max_rate = maxrate * 1000; - } else { - ERROR("Incorrect format for VideoBitRateRange -- should be <min>-<max>: %s\n", arg); - } - } - } else if (!av_strcasecmp(cmd, "Debug")) { - if (stream) { - get_arg(arg, sizeof(arg), &p); - video_enc.debug = strtol(arg,0,0); - } - } else if (!av_strcasecmp(cmd, "Strict")) { - if (stream) { - get_arg(arg, sizeof(arg), &p); - video_enc.strict_std_compliance = atoi(arg); - } - } else if (!av_strcasecmp(cmd, "VideoBufferSize")) { - if (stream) { - get_arg(arg, sizeof(arg), &p); - video_enc.rc_buffer_size = atoi(arg) * 8*1024; - } - } else if (!av_strcasecmp(cmd, "VideoBitRateTolerance")) { - if (stream) { - get_arg(arg, sizeof(arg), &p); - video_enc.bit_rate_tolerance = atoi(arg) * 1000; - } - } else if (!av_strcasecmp(cmd, "VideoBitRate")) { - get_arg(arg, sizeof(arg), &p); - if (stream) { - video_enc.bit_rate = atoi(arg) * 1000; - } - } else if (!av_strcasecmp(cmd, "VideoSize")) { - get_arg(arg, sizeof(arg), &p); - if (stream) { - av_parse_video_size(&video_enc.width, &video_enc.height, arg); - if ((video_enc.width % 16) != 0 || - (video_enc.height % 16) != 0) { - ERROR("Image size must be a multiple of 16\n"); - } - } - } else if (!av_strcasecmp(cmd, "VideoFrameRate")) { - get_arg(arg, sizeof(arg), &p); - if (stream) { - AVRational frame_rate; - if (av_parse_video_rate(&frame_rate, arg) < 0) { - ERROR("Incorrect frame rate: %s\n", arg); - } else { - video_enc.time_base.num = frame_rate.den; - video_enc.time_base.den = frame_rate.num; - } - } - } else if (!av_strcasecmp(cmd, "VideoGopSize")) { - get_arg(arg, sizeof(arg), &p); - if (stream) - video_enc.gop_size = atoi(arg); - } else if (!av_strcasecmp(cmd, "VideoIntraOnly")) { - if (stream) - video_enc.gop_size = 1; - } else if (!av_strcasecmp(cmd, "VideoHighQuality")) { - if (stream) - video_enc.mb_decision = FF_MB_DECISION_BITS; - } else if (!av_strcasecmp(cmd, "Video4MotionVector")) { - if (stream) { - video_enc.mb_decision = FF_MB_DECISION_BITS; //FIXME remove - video_enc.flags |= CODEC_FLAG_4MV; - } - } else if (!av_strcasecmp(cmd, "AVOptionVideo") || - !av_strcasecmp(cmd, "AVOptionAudio")) { - char arg2[1024]; - AVCodecContext *avctx; - int type; - get_arg(arg, sizeof(arg), &p); - get_arg(arg2, sizeof(arg2), &p); - if (!av_strcasecmp(cmd, "AVOptionVideo")) { - avctx = &video_enc; - type = AV_OPT_FLAG_VIDEO_PARAM; - } else { - avctx = &audio_enc; - type = AV_OPT_FLAG_AUDIO_PARAM; - } - if (avserver_opt_default(arg, arg2, avctx, type|AV_OPT_FLAG_ENCODING_PARAM)) { - ERROR("AVOption error: %s %s\n", arg, arg2); - } - } else if (!av_strcasecmp(cmd, "AVPresetVideo") || - !av_strcasecmp(cmd, "AVPresetAudio")) { - AVCodecContext *avctx; - int type; - get_arg(arg, sizeof(arg), &p); - if (!av_strcasecmp(cmd, "AVPresetVideo")) { - avctx = &video_enc; - video_enc.codec_id = video_id; - type = AV_OPT_FLAG_VIDEO_PARAM; - } else { - avctx = &audio_enc; - audio_enc.codec_id = audio_id; - type = AV_OPT_FLAG_AUDIO_PARAM; - } - if (avserver_opt_preset(arg, avctx, type|AV_OPT_FLAG_ENCODING_PARAM, &audio_id, &video_id)) { - ERROR("AVPreset error: %s\n", arg); - } - } else if (!av_strcasecmp(cmd, "VideoTag")) { - get_arg(arg, sizeof(arg), &p); - if ((strlen(arg) == 4) && stream) - video_enc.codec_tag = MKTAG(arg[0], arg[1], arg[2], arg[3]); - } else if (!av_strcasecmp(cmd, "BitExact")) { - if (stream) - video_enc.flags |= CODEC_FLAG_BITEXACT; - } else if (!av_strcasecmp(cmd, "DctFastint")) { - if (stream) - video_enc.dct_algo = FF_DCT_FASTINT; - } else if (!av_strcasecmp(cmd, "IdctSimple")) { - if (stream) - video_enc.idct_algo = FF_IDCT_SIMPLE; - } else if (!av_strcasecmp(cmd, "Qscale")) { - get_arg(arg, sizeof(arg), &p); - if (stream) { - video_enc.flags |= CODEC_FLAG_QSCALE; - video_enc.global_quality = FF_QP2LAMBDA * atoi(arg); - } - } else if (!av_strcasecmp(cmd, "VideoQDiff")) { - get_arg(arg, sizeof(arg), &p); - if (stream) { - video_enc.max_qdiff = atoi(arg); - if (video_enc.max_qdiff < 1 || video_enc.max_qdiff > 31) { - ERROR("VideoQDiff out of range\n"); - } - } - } else if (!av_strcasecmp(cmd, "VideoQMax")) { - get_arg(arg, sizeof(arg), &p); - if (stream) { - video_enc.qmax = atoi(arg); - if (video_enc.qmax < 1 || video_enc.qmax > 31) { - ERROR("VideoQMax out of range\n"); - } - } - } else if (!av_strcasecmp(cmd, "VideoQMin")) { - get_arg(arg, sizeof(arg), &p); - if (stream) { - video_enc.qmin = atoi(arg); - if (video_enc.qmin < 1 || video_enc.qmin > 31) { - ERROR("VideoQMin out of range\n"); - } - } - } else if (!av_strcasecmp(cmd, "LumiMask")) { - get_arg(arg, sizeof(arg), &p); - if (stream) - video_enc.lumi_masking = atof(arg); - } else if (!av_strcasecmp(cmd, "DarkMask")) { - get_arg(arg, sizeof(arg), &p); - if (stream) - video_enc.dark_masking = atof(arg); - } else if (!av_strcasecmp(cmd, "NoVideo")) { - video_id = AV_CODEC_ID_NONE; - } else if (!av_strcasecmp(cmd, "NoAudio")) { - audio_id = AV_CODEC_ID_NONE; - } else if (!av_strcasecmp(cmd, "ACL")) { - parse_acl_row(stream, feed, NULL, p, filename, line_num); - } else if (!av_strcasecmp(cmd, "DynamicACL")) { - if (stream) { - get_arg(stream->dynamic_acl, sizeof(stream->dynamic_acl), &p); - } - } else if (!av_strcasecmp(cmd, "RTSPOption")) { - get_arg(arg, sizeof(arg), &p); - if (stream) { - av_freep(&stream->rtsp_option); - stream->rtsp_option = av_strdup(arg); - } - } else if (!av_strcasecmp(cmd, "MulticastAddress")) { - get_arg(arg, sizeof(arg), &p); - if (stream) { - if (resolve_host(&stream->multicast_ip, arg) != 0) { - ERROR("Invalid host/IP address: %s\n", arg); - } - stream->is_multicast = 1; - stream->loop = 1; /* default is looping */ - } - } else if (!av_strcasecmp(cmd, "MulticastPort")) { - get_arg(arg, sizeof(arg), &p); - if (stream) - stream->multicast_port = atoi(arg); - } else if (!av_strcasecmp(cmd, "MulticastTTL")) { - get_arg(arg, sizeof(arg), &p); - if (stream) - stream->multicast_ttl = atoi(arg); - } else if (!av_strcasecmp(cmd, "NoLoop")) { - if (stream) - stream->loop = 0; - } else if (!av_strcasecmp(cmd, "</Stream>")) { - if (!stream) { - ERROR("No corresponding <Stream> for </Stream>\n"); - } else { - if (stream->feed && stream->fmt && strcmp(stream->fmt->name, "ffm") != 0) { - if (audio_id != AV_CODEC_ID_NONE) { - audio_enc.codec_type = AVMEDIA_TYPE_AUDIO; - audio_enc.codec_id = audio_id; - add_codec(stream, &audio_enc); - } - if (video_id != AV_CODEC_ID_NONE) { - video_enc.codec_type = AVMEDIA_TYPE_VIDEO; - video_enc.codec_id = video_id; - add_codec(stream, &video_enc); - } - } - stream = NULL; - } - } else if (!av_strcasecmp(cmd, "<Redirect")) { - /*********************************************/ - char *q; - if (stream || feed || redirect) { - ERROR("Already in a tag\n"); - } else { - redirect = av_mallocz(sizeof(FFStream)); - *last_stream = redirect; - last_stream = &redirect->next; - - get_arg(redirect->filename, sizeof(redirect->filename), &p); - q = strrchr(redirect->filename, '>'); - if (*q) - *q = '\0'; - redirect->stream_type = STREAM_TYPE_REDIRECT; - } - } else if (!av_strcasecmp(cmd, "URL")) { - if (redirect) - get_arg(redirect->feed_filename, sizeof(redirect->feed_filename), &p); - } else if (!av_strcasecmp(cmd, "</Redirect>")) { - if (!redirect) { - ERROR("No corresponding <Redirect> for </Redirect>\n"); - } else { - if (!redirect->feed_filename[0]) { - ERROR("No URL found for <Redirect>\n"); - } - redirect = NULL; - } - } else if (!av_strcasecmp(cmd, "LoadModule")) { - ERROR("Loadable modules no longer supported\n"); - } else { - ERROR("Incorrect keyword: '%s'\n", cmd); - } - } -#undef ERROR - - fclose(f); - if (errors) - return -1; - else - return 0; -} - -static void handle_child_exit(int sig) -{ - pid_t pid; - int status; - - while ((pid = waitpid(-1, &status, WNOHANG)) > 0) { - FFStream *feed; - - for (feed = first_feed; feed; feed = feed->next) { - if (feed->pid == pid) { - int uptime = time(0) - feed->pid_start; - - feed->pid = 0; - fprintf(stderr, "%s: Pid %d exited with status %d after %d seconds\n", feed->filename, pid, status, uptime); - - if (uptime < 30) - /* Turn off any more restarts */ - feed->child_argv = 0; - } - } - } - - need_to_start_children = 1; -} - -static void opt_debug(void) -{ - avserver_debug = 1; - logfilename[0] = '-'; -} - -void show_help_default(const char *opt, const char *arg) -{ - printf("usage: avserver [options]\n" - "Hyper fast multi format Audio/Video streaming server\n"); - printf("\n"); - show_help_options(options, "Main options:", 0, 0, 0); -} - -static const OptionDef options[] = { -#include "cmdutils_common_opts.h" - { "n", OPT_BOOL, {(void *)&no_launch }, "enable no-launch mode" }, - { "d", 0, {(void*)opt_debug}, "enable debug mode" }, - { "f", HAS_ARG | OPT_STRING, {(void*)&config_filename }, "use configfile instead of /etc/avserver.conf", "configfile" }, - { NULL }, -}; - -int main(int argc, char **argv) -{ - struct sigaction sigact = { { 0 } }; - - config_filename = av_strdup("/etc/avserver.conf"); - - parse_loglevel(argc, argv, options); - av_register_all(); - avformat_network_init(); - - show_banner(); - - my_program_name = argv[0]; - - parse_options(NULL, argc, argv, options, NULL); - - unsetenv("http_proxy"); /* Kill the http_proxy */ - - av_lfg_init(&random_state, av_get_random_seed()); - - sigact.sa_handler = handle_child_exit; - sigact.sa_flags = SA_NOCLDSTOP | SA_RESTART; - sigaction(SIGCHLD, &sigact, 0); - - if (parse_ffconfig(config_filename) < 0) { - fprintf(stderr, "Incorrect config file - exiting.\n"); - exit(1); - } - - /* open log file if needed */ - if (logfilename[0] != '\0') { - if (!strcmp(logfilename, "-")) - logfile = stdout; - else - logfile = fopen(logfilename, "a"); - av_log_set_callback(http_av_log); - } - - build_file_streams(); - - build_feed_streams(); - - compute_bandwidth(); - - /* signal init */ - signal(SIGPIPE, SIG_IGN); - - if (http_server() < 0) { - http_log("Could not start server\n"); - exit(1); - } - - return 0; -} |