diff options
Diffstat (limited to 'avplay.c')
| -rw-r--r-- | avplay.c | 3061 |
1 files changed, 0 insertions, 3061 deletions
diff --git a/avplay.c b/avplay.c deleted file mode 100644 index 0e128af553..0000000000 --- a/avplay.c +++ /dev/null @@ -1,3061 +0,0 @@ -/* - * avplay : Simple Media Player based on the Libav libraries - * Copyright (c) 2003 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" -#include <inttypes.h> -#include <math.h> -#include <limits.h> -#include <stdint.h> - -#include "libavutil/avstring.h" -#include "libavutil/colorspace.h" -#include "libavutil/display.h" -#include "libavutil/mathematics.h" -#include "libavutil/pixdesc.h" -#include "libavutil/imgutils.h" -#include "libavutil/dict.h" -#include "libavutil/parseutils.h" -#include "libavutil/samplefmt.h" -#include "libavutil/time.h" -#include "libavformat/avformat.h" -#include "libavdevice/avdevice.h" -#include "libavresample/avresample.h" -#include "libavutil/opt.h" -#include "libavcodec/avfft.h" - -#include "libavfilter/avfilter.h" -#include "libavfilter/buffersink.h" -#include "libavfilter/buffersrc.h" - -#include "cmdutils.h" - -#include <SDL.h> -#include <SDL_thread.h> - -#ifdef __MINGW32__ -#undef main /* We don't want SDL to override our main() */ -#endif - -#include <assert.h> - -const char program_name[] = "avplay"; -const int program_birth_year = 2003; - -#define MAX_QUEUE_SIZE (15 * 1024 * 1024) -#define MIN_AUDIOQ_SIZE (20 * 16 * 1024) -#define MIN_FRAMES 5 - -/* SDL audio buffer size, in samples. Should be small to have precise - A/V sync as SDL does not have hardware buffer fullness info. */ -#define SDL_AUDIO_BUFFER_SIZE 1024 - -/* no AV sync correction is done if below the AV sync threshold */ -#define AV_SYNC_THRESHOLD 0.01 -/* no AV correction is done if too big error */ -#define AV_NOSYNC_THRESHOLD 10.0 - -#define FRAME_SKIP_FACTOR 0.05 - -/* maximum audio speed change to get correct sync */ -#define SAMPLE_CORRECTION_PERCENT_MAX 10 - -/* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */ -#define AUDIO_DIFF_AVG_NB 20 - -/* NOTE: the size must be big enough to compensate the hardware audio buffersize size */ -#define SAMPLE_ARRAY_SIZE (2 * 65536) - -static int64_t sws_flags = SWS_BICUBIC; - -typedef struct PacketQueue { - AVPacketList *first_pkt, *last_pkt; - int nb_packets; - int size; - int abort_request; - SDL_mutex *mutex; - SDL_cond *cond; -} PacketQueue; - -#define VIDEO_PICTURE_QUEUE_SIZE 2 -#define SUBPICTURE_QUEUE_SIZE 4 - -typedef struct VideoPicture { - double pts; // presentation timestamp for this picture - double target_clock; // av_gettime_relative() time at which this should be displayed ideally - int64_t pos; // byte position in file - SDL_Overlay *bmp; - int width, height; /* source height & width */ - int allocated; - int reallocate; - enum AVPixelFormat pix_fmt; - - AVRational sar; -} VideoPicture; - -typedef struct SubPicture { - double pts; /* presentation time stamp for this picture */ - AVSubtitle sub; -} SubPicture; - -enum { - AV_SYNC_AUDIO_MASTER, /* default choice */ - AV_SYNC_VIDEO_MASTER, - AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */ -}; - -typedef struct PlayerState { - SDL_Thread *parse_tid; - SDL_Thread *video_tid; - SDL_Thread *refresh_tid; - AVInputFormat *iformat; - int no_background; - int abort_request; - int paused; - int last_paused; - int seek_req; - int seek_flags; - int64_t seek_pos; - int64_t seek_rel; - int read_pause_return; - AVFormatContext *ic; - - int audio_stream; - - int av_sync_type; - double external_clock; /* external clock base */ - int64_t external_clock_time; - - double audio_clock; - double audio_diff_cum; /* used for AV difference average computation */ - double audio_diff_avg_coef; - double audio_diff_threshold; - int audio_diff_avg_count; - AVStream *audio_st; - AVCodecContext *audio_dec; - PacketQueue audioq; - int audio_hw_buf_size; - uint8_t silence_buf[SDL_AUDIO_BUFFER_SIZE]; - uint8_t *audio_buf; - uint8_t *audio_buf1; - unsigned int audio_buf_size; /* in bytes */ - int audio_buf_index; /* in bytes */ - AVPacket audio_pkt_temp; - AVPacket audio_pkt; - enum AVSampleFormat sdl_sample_fmt; - uint64_t sdl_channel_layout; - int sdl_channels; - int sdl_sample_rate; - enum AVSampleFormat resample_sample_fmt; - uint64_t resample_channel_layout; - int resample_sample_rate; - AVAudioResampleContext *avr; - AVFrame *frame; - - int show_audio; /* if true, display audio samples */ - int16_t sample_array[SAMPLE_ARRAY_SIZE]; - int sample_array_index; - int last_i_start; - RDFTContext *rdft; - int rdft_bits; - FFTSample *rdft_data; - int xpos; - - SDL_Thread *subtitle_tid; - int subtitle_stream; - int subtitle_stream_changed; - AVStream *subtitle_st; - AVCodecContext *subtitle_dec; - PacketQueue subtitleq; - SubPicture subpq[SUBPICTURE_QUEUE_SIZE]; - int subpq_size, subpq_rindex, subpq_windex; - SDL_mutex *subpq_mutex; - SDL_cond *subpq_cond; - - double frame_timer; - double frame_last_pts; - double frame_last_delay; - double video_clock; // pts of last decoded frame / predicted pts of next decoded frame - int video_stream; - AVStream *video_st; - AVCodecContext *video_dec; - PacketQueue videoq; - double video_current_pts; // current displayed pts (different from video_clock if frame fifos are used) - double video_current_pts_drift; // video_current_pts - time (av_gettime_relative) at which we updated video_current_pts - used to have running video pts - int64_t video_current_pos; // current displayed file pos - VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE]; - int pictq_size, pictq_rindex, pictq_windex; - SDL_mutex *pictq_mutex; - SDL_cond *pictq_cond; - - // QETimer *video_timer; - char filename[1024]; - int width, height, xleft, ytop; - - PtsCorrectionContext pts_ctx; - - AVFilterContext *in_video_filter; // the first filter in the video chain - AVFilterContext *out_video_filter; // the last filter in the video chain - - float skip_frames; - float skip_frames_index; - int refresh; - - SpecifierOpt *codec_names; - int nb_codec_names; -} PlayerState; - -/* options specified by the user */ -static AVInputFormat *file_iformat; -static const char *input_filename; -static const char *window_title; -static int fs_screen_width; -static int fs_screen_height; -static int screen_width = 0; -static int screen_height = 0; -static int audio_disable; -static int video_disable; -static int wanted_stream[AVMEDIA_TYPE_NB] = { - [AVMEDIA_TYPE_AUDIO] = -1, - [AVMEDIA_TYPE_VIDEO] = -1, - [AVMEDIA_TYPE_SUBTITLE] = -1, -}; -static int seek_by_bytes = -1; -static int display_disable; -static int show_status = 1; -static int av_sync_type = AV_SYNC_AUDIO_MASTER; -static int64_t start_time = AV_NOPTS_VALUE; -static int64_t duration = AV_NOPTS_VALUE; -static int step = 0; -static int workaround_bugs = 1; -static int fast = 0; -static int genpts = 0; -static int idct = FF_IDCT_AUTO; -static enum AVDiscard skip_frame = AVDISCARD_DEFAULT; -static enum AVDiscard skip_idct = AVDISCARD_DEFAULT; -static enum AVDiscard skip_loop_filter = AVDISCARD_DEFAULT; -static int error_concealment = 3; -static int decoder_reorder_pts = -1; -static int noautoexit; -static int exit_on_keydown; -static int exit_on_mousedown; -static int loop = 1; -static int framedrop = 1; -static int infinite_buffer = 0; - -static int rdftspeed = 20; -static char *vfilters = NULL; -static int autorotate = 1; - -/* current context */ -static int is_full_screen; -static PlayerState player_state; -static PlayerState *player = &player_state; -static int64_t audio_callback_time; - -static AVPacket flush_pkt; - -#define FF_ALLOC_EVENT (SDL_USEREVENT) -#define FF_REFRESH_EVENT (SDL_USEREVENT + 1) -#define FF_QUIT_EVENT (SDL_USEREVENT + 2) - -static SDL_Surface *screen; - -static int packet_queue_put(PacketQueue *q, AVPacket *pkt); - -/* packet queue handling */ -static void packet_queue_init(PacketQueue *q) -{ - memset(q, 0, sizeof(PacketQueue)); - q->mutex = SDL_CreateMutex(); - q->cond = SDL_CreateCond(); - packet_queue_put(q, &flush_pkt); -} - -static void packet_queue_flush(PacketQueue *q) -{ - AVPacketList *pkt, *pkt1; - - SDL_LockMutex(q->mutex); - for (pkt = q->first_pkt; pkt != NULL; pkt = pkt1) { - pkt1 = pkt->next; - av_packet_unref(&pkt->pkt); - av_freep(&pkt); - } - q->last_pkt = NULL; - q->first_pkt = NULL; - q->nb_packets = 0; - q->size = 0; - SDL_UnlockMutex(q->mutex); -} - -static void packet_queue_end(PacketQueue *q) -{ - packet_queue_flush(q); - SDL_DestroyMutex(q->mutex); - SDL_DestroyCond(q->cond); -} - -static int packet_queue_put(PacketQueue *q, AVPacket *pkt) -{ - AVPacketList *pkt1; - - pkt1 = av_malloc(sizeof(AVPacketList)); - if (!pkt1) - return -1; - pkt1->pkt = *pkt; - pkt1->next = NULL; - - - SDL_LockMutex(q->mutex); - - if (!q->last_pkt) - - q->first_pkt = pkt1; - else - q->last_pkt->next = pkt1; - q->last_pkt = pkt1; - q->nb_packets++; - q->size += pkt1->pkt.size + sizeof(*pkt1); - /* XXX: should duplicate packet data in DV case */ - SDL_CondSignal(q->cond); - - SDL_UnlockMutex(q->mutex); - return 0; -} - -static void packet_queue_abort(PacketQueue *q) -{ - SDL_LockMutex(q->mutex); - - q->abort_request = 1; - - SDL_CondSignal(q->cond); - - SDL_UnlockMutex(q->mutex); -} - -/* return < 0 if aborted, 0 if no packet and > 0 if packet. */ -static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block) -{ - AVPacketList *pkt1; - int ret; - - SDL_LockMutex(q->mutex); - - for (;;) { - if (q->abort_request) { - ret = -1; - break; - } - - pkt1 = q->first_pkt; - if (pkt1) { - q->first_pkt = pkt1->next; - if (!q->first_pkt) - q->last_pkt = NULL; - q->nb_packets--; - q->size -= pkt1->pkt.size + sizeof(*pkt1); - *pkt = pkt1->pkt; - av_free(pkt1); - ret = 1; - break; - } else if (!block) { - ret = 0; - break; - } else { - SDL_CondWait(q->cond, q->mutex); - } - } - SDL_UnlockMutex(q->mutex); - return ret; -} - -static inline void fill_rectangle(SDL_Surface *screen, - int x, int y, int w, int h, int color) -{ - SDL_Rect rect; - rect.x = x; - rect.y = y; - rect.w = w; - rect.h = h; - SDL_FillRect(screen, &rect, color); -} - -#define ALPHA_BLEND(a, oldp, newp, s)\ -((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s)) - -#define RGBA_IN(r, g, b, a, s)\ -{\ - unsigned int v = ((const uint32_t *)(s))[0];\ - a = (v >> 24) & 0xff;\ - r = (v >> 16) & 0xff;\ - g = (v >> 8) & 0xff;\ - b = v & 0xff;\ -} - -#define YUVA_IN(y, u, v, a, s, pal)\ -{\ - unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\ - a = (val >> 24) & 0xff;\ - y = (val >> 16) & 0xff;\ - u = (val >> 8) & 0xff;\ - v = val & 0xff;\ -} - -#define YUVA_OUT(d, y, u, v, a)\ -{\ - ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\ -} - - -#define BPP 1 - -static void blend_subrect(uint8_t *dst[4], uint16_t dst_linesize[4], - const AVSubtitleRect *rect, int imgw, int imgh) -{ - int wrap, wrap3, width2, skip2; - int y, u, v, a, u1, v1, a1, w, h; - uint8_t *lum, *cb, *cr; - const uint8_t *p; - const uint32_t *pal; - int dstx, dsty, dstw, dsth; - - dstw = av_clip(rect->w, 0, imgw); - dsth = av_clip(rect->h, 0, imgh); - dstx = av_clip(rect->x, 0, imgw - dstw); - dsty = av_clip(rect->y, 0, imgh - dsth); - /* sdl has U and V inverted */ - lum = dst[0] + dsty * dst_linesize[0]; - cb = dst[2] + (dsty >> 1) * dst_linesize[2]; - cr = dst[1] + (dsty >> 1) * dst_linesize[1]; - - width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1); - skip2 = dstx >> 1; - wrap = dst_linesize[0]; - wrap3 = rect->linesize[0]; - p = rect->data[0]; - pal = (const uint32_t *)rect->data[1]; /* Now in YCrCb! */ - - if (dsty & 1) { - lum += dstx; - cb += skip2; - cr += skip2; - - if (dstx & 1) { - YUVA_IN(y, u, v, a, p, pal); - lum[0] = ALPHA_BLEND(a, lum[0], y, 0); - cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0); - cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0); - cb++; - cr++; - lum++; - p += BPP; - } - for (w = dstw - (dstx & 1); w >= 2; w -= 2) { - YUVA_IN(y, u, v, a, p, pal); - u1 = u; - v1 = v; - a1 = a; - lum[0] = ALPHA_BLEND(a, lum[0], y, 0); - - YUVA_IN(y, u, v, a, p + BPP, pal); - u1 += u; - v1 += v; - a1 += a; - lum[1] = ALPHA_BLEND(a, lum[1], y, 0); - cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1); - cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1); - cb++; - cr++; - p += 2 * BPP; - lum += 2; - } - if (w) { - YUVA_IN(y, u, v, a, p, pal); - lum[0] = ALPHA_BLEND(a, lum[0], y, 0); - cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0); - cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0); - p++; - lum++; - } - p += wrap3 - dstw * BPP; - lum += wrap - dstw - dstx; - cb += dst_linesize[2] - width2 - skip2; - cr += dst_linesize[1] - width2 - skip2; - } - for (h = dsth - (dsty & 1); h >= 2; h -= 2) { - lum += dstx; - cb += skip2; - cr += skip2; - - if (dstx & 1) { - YUVA_IN(y, u, v, a, p, pal); - u1 = u; - v1 = v; - a1 = a; - lum[0] = ALPHA_BLEND(a, lum[0], y, 0); - p += wrap3; - lum += wrap; - YUVA_IN(y, u, v, a, p, pal); - u1 += u; - v1 += v; - a1 += a; - lum[0] = ALPHA_BLEND(a, lum[0], y, 0); - cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1); - cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1); - cb++; - cr++; - p += -wrap3 + BPP; - lum += -wrap + 1; - } - for (w = dstw - (dstx & 1); w >= 2; w -= 2) { - YUVA_IN(y, u, v, a, p, pal); - u1 = u; - v1 = v; - a1 = a; - lum[0] = ALPHA_BLEND(a, lum[0], y, 0); - - YUVA_IN(y, u, v, a, p + BPP, pal); - u1 += u; - v1 += v; - a1 += a; - lum[1] = ALPHA_BLEND(a, lum[1], y, 0); - p += wrap3; - lum += wrap; - - YUVA_IN(y, u, v, a, p, pal); - u1 += u; - v1 += v; - a1 += a; - lum[0] = ALPHA_BLEND(a, lum[0], y, 0); - - YUVA_IN(y, u, v, a, p + BPP, pal); - u1 += u; - v1 += v; - a1 += a; - lum[1] = ALPHA_BLEND(a, lum[1], y, 0); - - cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2); - cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2); - - cb++; - cr++; - p += -wrap3 + 2 * BPP; - lum += -wrap + 2; - } - if (w) { - YUVA_IN(y, u, v, a, p, pal); - u1 = u; - v1 = v; - a1 = a; - lum[0] = ALPHA_BLEND(a, lum[0], y, 0); - p += wrap3; - lum += wrap; - YUVA_IN(y, u, v, a, p, pal); - u1 += u; - v1 += v; - a1 += a; - lum[0] = ALPHA_BLEND(a, lum[0], y, 0); - cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1); - cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1); - cb++; - cr++; - p += -wrap3 + BPP; - lum += -wrap + 1; - } - p += wrap3 + (wrap3 - dstw * BPP); - lum += wrap + (wrap - dstw - dstx); - cb += dst_linesize[2] - width2 - skip2; - cr += dst_linesize[1] - width2 - skip2; - } - /* handle odd height */ - if (h) { - lum += dstx; - cb += skip2; - cr += skip2; - - if (dstx & 1) { - YUVA_IN(y, u, v, a, p, pal); - lum[0] = ALPHA_BLEND(a, lum[0], y, 0); - cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0); - cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0); - cb++; - cr++; - lum++; - p += BPP; - } - for (w = dstw - (dstx & 1); w >= 2; w -= 2) { - YUVA_IN(y, u, v, a, p, pal); - u1 = u; - v1 = v; - a1 = a; - lum[0] = ALPHA_BLEND(a, lum[0], y, 0); - - YUVA_IN(y, u, v, a, p + BPP, pal); - u1 += u; - v1 += v; - a1 += a; - lum[1] = ALPHA_BLEND(a, lum[1], y, 0); - cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1); - cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1); - cb++; - cr++; - p += 2 * BPP; - lum += 2; - } - if (w) { - YUVA_IN(y, u, v, a, p, pal); - lum[0] = ALPHA_BLEND(a, lum[0], y, 0); - cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0); - cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0); - } - } -} - -static void free_subpicture(SubPicture *sp) -{ - avsubtitle_free(&sp->sub); -} - -static void video_image_display(PlayerState *is) -{ - VideoPicture *vp; - SubPicture *sp; - float aspect_ratio; - int width, height, x, y; - SDL_Rect rect; - int i; - - vp = &is->pictq[is->pictq_rindex]; - if (vp->bmp) { - if (!vp->sar.num) - aspect_ratio = 0; - else - aspect_ratio = av_q2d(vp->sar); - if (aspect_ratio <= 0.0) - aspect_ratio = 1.0; - aspect_ratio *= (float)vp->width / (float)vp->height; - - if (is->subtitle_st) - { - if (is->subpq_size > 0) - { - sp = &is->subpq[is->subpq_rindex]; - - if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000)) - { - SDL_LockYUVOverlay (vp->bmp); - - for (i = 0; i < sp->sub.num_rects; i++) - blend_subrect(vp->bmp->pixels, vp->bmp->pitches, - sp->sub.rects[i], vp->bmp->w, vp->bmp->h); - - SDL_UnlockYUVOverlay (vp->bmp); - } - } - } - - - /* XXX: we suppose the screen has a 1.0 pixel ratio */ - height = is->height; - width = ((int)rint(height * aspect_ratio)) & ~1; - if (width > is->width) { - width = is->width; - height = ((int)rint(width / aspect_ratio)) & ~1; - } - x = (is->width - width) / 2; - y = (is->height - height) / 2; - is->no_background = 0; - rect.x = is->xleft + x; - rect.y = is->ytop + y; - rect.w = width; - rect.h = height; - SDL_DisplayYUVOverlay(vp->bmp, &rect); - } -} - -/* get the current audio output buffer size, in samples. With SDL, we - cannot have a precise information */ -static int audio_write_get_buf_size(PlayerState *is) -{ - return is->audio_buf_size - is->audio_buf_index; -} - -static inline int compute_mod(int a, int b) -{ - a = a % b; - if (a >= 0) - return a; - else - return a + b; -} - -static void video_audio_display(PlayerState *s) -{ - int i, i_start, x, y1, y, ys, delay, n, nb_display_channels; - int ch, channels, h, h2, bgcolor, fgcolor; - int16_t time_diff; - int rdft_bits, nb_freq; - - for (rdft_bits = 1; (1 << rdft_bits) < 2 * s->height; rdft_bits++) - ; - nb_freq = 1 << (rdft_bits - 1); - - /* compute display index : center on currently output samples */ - channels = s->sdl_channels; - nb_display_channels = channels; - if (!s->paused) { - int data_used = s->show_audio == 1 ? s->width : (2 * nb_freq); - n = 2 * channels; - delay = audio_write_get_buf_size(s); - delay /= n; - - /* to be more precise, we take into account the time spent since - the last buffer computation */ - if (audio_callback_time) { - time_diff = av_gettime_relative() - audio_callback_time; - delay -= (time_diff * s->sdl_sample_rate) / 1000000; - } - - delay += 2 * data_used; - if (delay < data_used) - delay = data_used; - - i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE); - if (s->show_audio == 1) { - h = INT_MIN; - for (i = 0; i < 1000; i += channels) { - int idx = (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE; - int a = s->sample_array[idx]; - int b = s->sample_array[(idx + 4 * channels) % SAMPLE_ARRAY_SIZE]; - int c = s->sample_array[(idx + 5 * channels) % SAMPLE_ARRAY_SIZE]; - int d = s->sample_array[(idx + 9 * channels) % SAMPLE_ARRAY_SIZE]; - int score = a - d; - if (h < score && (b ^ c) < 0) { - h = score; - i_start = idx; - } - } - } - - s->last_i_start = i_start; - } else { - i_start = s->last_i_start; - } - - bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00); - if (s->show_audio == 1) { - fill_rectangle(screen, - s->xleft, s->ytop, s->width, s->height, - bgcolor); - - fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff); - - /* total height for one channel */ - h = s->height / nb_display_channels; - /* graph height / 2 */ - h2 = (h * 9) / 20; - for (ch = 0; ch < nb_display_channels; ch++) { - i = i_start + ch; - y1 = s->ytop + ch * h + (h / 2); /* position of center line */ - for (x = 0; x < s->width; x++) { - y = (s->sample_array[i] * h2) >> 15; - if (y < 0) { - y = -y; - ys = y1 - y; - } else { - ys = y1; - } - fill_rectangle(screen, - s->xleft + x, ys, 1, y, - fgcolor); - i += channels; - if (i >= SAMPLE_ARRAY_SIZE) - i -= SAMPLE_ARRAY_SIZE; - } - } - - fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff); - - for (ch = 1; ch < nb_display_channels; ch++) { - y = s->ytop + ch * h; - fill_rectangle(screen, - s->xleft, y, s->width, 1, - fgcolor); - } - SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height); - } else { - nb_display_channels= FFMIN(nb_display_channels, 2); - if (rdft_bits != s->rdft_bits) { - av_rdft_end(s->rdft); - av_free(s->rdft_data); - s->rdft = av_rdft_init(rdft_bits, DFT_R2C); - s->rdft_bits = rdft_bits; - s->rdft_data = av_malloc(4 * nb_freq * sizeof(*s->rdft_data)); - } - { - FFTSample *data[2]; - for (ch = 0; ch < nb_display_channels; ch++) { - data[ch] = s->rdft_data + 2 * nb_freq * ch; - i = i_start + ch; - for (x = 0; x < 2 * nb_freq; x++) { - double w = (x-nb_freq) * (1.0 / nb_freq); - data[ch][x] = s->sample_array[i] * (1.0 - w * w); - i += channels; - if (i >= SAMPLE_ARRAY_SIZE) - i -= SAMPLE_ARRAY_SIZE; - } - av_rdft_calc(s->rdft, data[ch]); - } - /* Least efficient way to do this, we should of course - * directly access it but it is more than fast enough. */ - for (y = 0; y < s->height; y++) { - double w = 1 / sqrt(nb_freq); - int a = sqrt(w * sqrt(data[0][2 * y + 0] * data[0][2 * y + 0] + data[0][2 * y + 1] * data[0][2 * y + 1])); - int b = (nb_display_channels == 2 ) ? sqrt(w * sqrt(data[1][2 * y + 0] * data[1][2 * y + 0] - + data[1][2 * y + 1] * data[1][2 * y + 1])) : a; - a = FFMIN(a, 255); - b = FFMIN(b, 255); - fgcolor = SDL_MapRGB(screen->format, a, b, (a + b) / 2); - - fill_rectangle(screen, - s->xpos, s->height-y, 1, 1, - fgcolor); - } - } - SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height); - s->xpos++; - if (s->xpos >= s->width) - s->xpos= s->xleft; - } -} - -static int video_open(PlayerState *is) -{ - int flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL; - int w,h; - - if (is_full_screen) flags |= SDL_FULLSCREEN; - else flags |= SDL_RESIZABLE; - - if (is_full_screen && fs_screen_width) { - w = fs_screen_width; - h = fs_screen_height; - } else if (!is_full_screen && screen_width) { - w = screen_width; - h = screen_height; - } else if (is->out_video_filter && is->out_video_filter->inputs[0]) { - w = is->out_video_filter->inputs[0]->w; - h = is->out_video_filter->inputs[0]->h; - } else { - w = 640; - h = 480; - } - if (screen && is->width == screen->w && screen->w == w - && is->height== screen->h && screen->h == h) - return 0; - -#if defined(__APPLE__) && !SDL_VERSION_ATLEAST(1, 2, 14) - /* setting bits_per_pixel = 0 or 32 causes blank video on OS X and older SDL */ - screen = SDL_SetVideoMode(w, h, 24, flags); -#else - screen = SDL_SetVideoMode(w, h, 0, flags); -#endif - if (!screen) { - fprintf(stderr, "SDL: could not set video mode - exiting\n"); - return -1; - } - if (!window_title) - window_title = input_filename; - SDL_WM_SetCaption(window_title, window_title); - - is->width = screen->w; - is->height = screen->h; - - return 0; -} - -/* display the current picture, if any */ -static void video_display(PlayerState *is) -{ - if (!screen) - video_open(player); - if (is->audio_st && is->show_audio) - video_audio_display(is); - else if (is->video_st) - video_image_display(is); -} - -static int refresh_thread(void *opaque) -{ - PlayerState *is= opaque; - while (!is->abort_request) { - SDL_Event event; - event.type = FF_REFRESH_EVENT; - event.user.data1 = opaque; - if (!is->refresh) { - is->refresh = 1; - SDL_PushEvent(&event); - } - av_usleep(is->audio_st && is->show_audio ? rdftspeed * 1000 : 5000); // FIXME ideally we should wait the correct time but SDLs event passing is so slow it would be silly - } - return 0; -} - -/* get the current audio clock value */ -static double get_audio_clock(PlayerState *is) -{ - double pts; - int hw_buf_size, bytes_per_sec; - pts = is->audio_clock; - hw_buf_size = audio_write_get_buf_size(is); - bytes_per_sec = 0; - if (is->audio_st) { - bytes_per_sec = is->sdl_sample_rate * is->sdl_channels * - av_get_bytes_per_sample(is->sdl_sample_fmt); - } - if (bytes_per_sec) - pts -= (double)hw_buf_size / bytes_per_sec; - return pts; -} - -/* get the current video clock value */ -static double get_video_clock(PlayerState *is) -{ - if (is->paused) { - return is->video_current_pts; - } else { - return is->video_current_pts_drift + av_gettime_relative() / 1000000.0; - } -} - -/* get the current external clock value */ -static double get_external_clock(PlayerState *is) -{ - int64_t ti; - ti = av_gettime_relative(); - return is->external_clock + ((ti - is->external_clock_time) * 1e-6); -} - -/* get the current master clock value */ -static double get_master_clock(PlayerState *is) -{ - double val; - - if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) { - if (is->video_st) - val = get_video_clock(is); - else - val = get_audio_clock(is); - } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) { - if (is->audio_st) - val = get_audio_clock(is); - else - val = get_video_clock(is); - } else { - val = get_external_clock(is); - } - return val; -} - -/* seek in the stream */ -static void stream_seek(PlayerState *is, int64_t pos, int64_t rel, int seek_by_bytes) -{ - if (!is->seek_req) { - is->seek_pos = pos; - is->seek_rel = rel; - is->seek_flags &= ~AVSEEK_FLAG_BYTE; - if (seek_by_bytes) - is->seek_flags |= AVSEEK_FLAG_BYTE; - is->seek_req = 1; - } -} - -/* pause or resume the video */ -static void stream_pause(PlayerState *is) -{ - if (is->paused) { - is->frame_timer += av_gettime_relative() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts; - if (is->read_pause_return != AVERROR(ENOSYS)) { - is->video_current_pts = is->video_current_pts_drift + av_gettime_relative() / 1000000.0; - } - is->video_current_pts_drift = is->video_current_pts - av_gettime_relative() / 1000000.0; - } - is->paused = !is->paused; -} - -static double compute_target_time(double frame_current_pts, PlayerState *is) -{ - double delay, sync_threshold, diff = 0; - - /* compute nominal delay */ - delay = frame_current_pts - is->frame_last_pts; - if (delay <= 0 || delay >= 10.0) { - /* if incorrect delay, use previous one */ - delay = is->frame_last_delay; - } else { - is->frame_last_delay = delay; - } - is->frame_last_pts = frame_current_pts; - - /* update delay to follow master synchronisation source */ - if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) || - is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) { - /* if video is slave, we try to correct big delays by - duplicating or deleting a frame */ - diff = get_video_clock(is) - get_master_clock(is); - - /* skip or repeat frame. We take into account the - delay to compute the threshold. I still don't know - if it is the best guess */ - sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay); - if (fabs(diff) < AV_NOSYNC_THRESHOLD) { - if (diff <= -sync_threshold) - delay = 0; - else if (diff >= sync_threshold) - delay = 2 * delay; - } - } - is->frame_timer += delay; - - av_log(NULL, AV_LOG_TRACE, "video: delay=%0.3f pts=%0.3f A-V=%f\n", - delay, frame_current_pts, -diff); - - return is->frame_timer; -} - -/* called to display each frame */ -static void video_refresh_timer(void *opaque) -{ - PlayerState *is = opaque; - VideoPicture *vp; - - SubPicture *sp, *sp2; - - if (is->video_st) { -retry: - if (is->pictq_size == 0) { - // nothing to do, no picture to display in the que - } else { - double time = av_gettime_relative() / 1000000.0; - double next_target; - /* dequeue the picture */ - vp = &is->pictq[is->pictq_rindex]; - - if (time < vp->target_clock) - return; - /* update current video pts */ - is->video_current_pts = vp->pts; - is->video_current_pts_drift = is->video_current_pts - time; - is->video_current_pos = vp->pos; - if (is->pictq_size > 1) { - VideoPicture *nextvp = &is->pictq[(is->pictq_rindex + 1) % VIDEO_PICTURE_QUEUE_SIZE]; - assert(nextvp->target_clock >= vp->target_clock); - next_target= nextvp->target_clock; - } else { - next_target = vp->target_clock + is->video_clock - vp->pts; // FIXME pass durations cleanly - } - if (framedrop && time > next_target) { - is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR; - if (is->pictq_size > 1 || time > next_target + 0.5) { - /* update queue size and signal for next picture */ - if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE) - is->pictq_rindex = 0; - - SDL_LockMutex(is->pictq_mutex); - is->pictq_size--; - SDL_CondSignal(is->pictq_cond); - SDL_UnlockMutex(is->pictq_mutex); - goto retry; - } - } - - if (is->subtitle_st) { - if (is->subtitle_stream_changed) { - SDL_LockMutex(is->subpq_mutex); - - while (is->subpq_size) { - free_subpicture(&is->subpq[is->subpq_rindex]); - - /* update queue size and signal for next picture */ - if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE) - is->subpq_rindex = 0; - - is->subpq_size--; - } - is->subtitle_stream_changed = 0; - - SDL_CondSignal(is->subpq_cond); - SDL_UnlockMutex(is->subpq_mutex); - } else { - if (is->subpq_size > 0) { - sp = &is->subpq[is->subpq_rindex]; - - if (is->subpq_size > 1) - sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE]; - else - sp2 = NULL; - - if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000))) - || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000)))) - { - free_subpicture(sp); - - /* update queue size and signal for next picture */ - if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE) - is->subpq_rindex = 0; - - SDL_LockMutex(is->subpq_mutex); - is->subpq_size--; - SDL_CondSignal(is->subpq_cond); - SDL_UnlockMutex(is->subpq_mutex); - } - } - } - } - - /* display picture */ - if (!display_disable) - video_display(is); - - /* update queue size and signal for next picture */ - if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE) - is->pictq_rindex = 0; - - SDL_LockMutex(is->pictq_mutex); - is->pictq_size--; - SDL_CondSignal(is->pictq_cond); - SDL_UnlockMutex(is->pictq_mutex); - } - } else if (is->audio_st) { - /* draw the next audio frame */ - - /* if only audio stream, then display the audio bars (better - than nothing, just to test the implementation */ - - /* display picture */ - if (!display_disable) - video_display(is); - } - if (show_status) { - static int64_t last_time; - int64_t cur_time; - int aqsize, vqsize, sqsize; - double av_diff; - - cur_time = av_gettime_relative(); - if (!last_time || (cur_time - last_time) >= 30000) { - aqsize = 0; - vqsize = 0; - sqsize = 0; - if (is->audio_st) - aqsize = is->audioq.size; - if (is->video_st) - vqsize = is->videoq.size; - if (is->subtitle_st) - sqsize = is->subtitleq.size; - av_diff = 0; - if (is->audio_st && is->video_st) - av_diff = get_audio_clock(is) - get_video_clock(is); - printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r", - get_master_clock(is), av_diff, FFMAX(is->skip_frames - 1, 0), aqsize / 1024, - vqsize / 1024, sqsize, is->pts_ctx.num_faulty_dts, is->pts_ctx.num_faulty_pts); - fflush(stdout); - last_time = cur_time; - } - } -} - -static void player_close(PlayerState *is) -{ - VideoPicture *vp; - int i; - /* XXX: use a special url_shutdown call to abort parse cleanly */ - is->abort_request = 1; - SDL_WaitThread(is->parse_tid, NULL); - SDL_WaitThread(is->refresh_tid, NULL); - - /* free all pictures */ - for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) { - vp = &is->pictq[i]; - if (vp->bmp) { - SDL_FreeYUVOverlay(vp->bmp); - vp->bmp = NULL; - } - } - SDL_DestroyMutex(is->pictq_mutex); - SDL_DestroyCond(is->pictq_cond); - SDL_DestroyMutex(is->subpq_mutex); - SDL_DestroyCond(is->subpq_cond); -} - -static void do_exit(void) -{ - if (player) { - player_close(player); - player = NULL; - } - uninit_opts(); - avformat_network_deinit(); - if (show_status) - printf("\n"); - SDL_Quit(); - av_log(NULL, AV_LOG_QUIET, ""); - exit(0); -} - -/* allocate a picture (needs to do that in main thread to avoid - potential locking problems */ -static void alloc_picture(void *opaque) -{ - PlayerState *is = opaque; - VideoPicture *vp; - - vp = &is->pictq[is->pictq_windex]; - - if (vp->bmp) - SDL_FreeYUVOverlay(vp->bmp); - - vp->width = is->out_video_filter->inputs[0]->w; - vp->height = is->out_video_filter->inputs[0]->h; - vp->pix_fmt = is->out_video_filter->inputs[0]->format; - - vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height, - SDL_YV12_OVERLAY, - screen); - if (!vp->bmp || vp->bmp->pitches[0] < vp->width) { - /* SDL allocates a buffer smaller than requested if the video - * overlay hardware is unable to support the requested size. */ - fprintf(stderr, "Error: the video system does not support an image\n" - "size of %dx%d pixels. Try using -vf \"scale=w:h\"\n" - "to reduce the image size.\n", vp->width, vp->height ); - do_exit(); - } - - SDL_LockMutex(is->pictq_mutex); - vp->allocated = 1; - SDL_CondSignal(is->pictq_cond); - SDL_UnlockMutex(is->pictq_mutex); -} - -/* The 'pts' parameter is the dts of the packet / pts of the frame and - * guessed if not known. */ -static int queue_picture(PlayerState *is, AVFrame *src_frame, double pts, int64_t pos) -{ - VideoPicture *vp; - - /* wait until we have space to put a new picture */ - SDL_LockMutex(is->pictq_mutex); - - if (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE && !is->refresh) - is->skip_frames = FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0 - FRAME_SKIP_FACTOR)); - - while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE && - !is->videoq.abort_request) { - SDL_CondWait(is->pictq_cond, is->pictq_mutex); - } - SDL_UnlockMutex(is->pictq_mutex); - - if (is->videoq.abort_request) - return -1; - - vp = &is->pictq[is->pictq_windex]; - - vp->sar = src_frame->sample_aspect_ratio; - - /* alloc or resize hardware picture buffer */ - if (!vp->bmp || vp->reallocate || - vp->width != is->out_video_filter->inputs[0]->w || - vp->height != is->out_video_filter->inputs[0]->h) { - SDL_Event event; - - vp->allocated = 0; - vp->reallocate = 0; - - /* the allocation must be done in the main thread to avoid - locking problems */ - event.type = FF_ALLOC_EVENT; - event.user.data1 = is; - SDL_PushEvent(&event); - - /* wait until the picture is allocated */ - SDL_LockMutex(is->pictq_mutex); - while (!vp->allocated && !is->videoq.abort_request) { - SDL_CondWait(is->pictq_cond, is->pictq_mutex); - } - SDL_UnlockMutex(is->pictq_mutex); - - if (is->videoq.abort_request) - return -1; - } - - /* if the frame is not skipped, then display it */ - if (vp->bmp) { - uint8_t *data[4]; - int linesize[4]; - - /* get a pointer on the bitmap */ - SDL_LockYUVOverlay (vp->bmp); - - data[0] = vp->bmp->pixels[0]; - data[1] = vp->bmp->pixels[2]; - data[2] = vp->bmp->pixels[1]; - - linesize[0] = vp->bmp->pitches[0]; - linesize[1] = vp->bmp->pitches[2]; - linesize[2] = vp->bmp->pitches[1]; - - // FIXME use direct rendering - av_image_copy(data, linesize, src_frame->data, src_frame->linesize, - vp->pix_fmt, vp->width, vp->height); - - /* update the bitmap content */ - SDL_UnlockYUVOverlay(vp->bmp); - - vp->pts = pts; - vp->pos = pos; - - /* now we can update the picture count */ - if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE) - is->pictq_windex = 0; - SDL_LockMutex(is->pictq_mutex); - vp->target_clock = compute_target_time(vp->pts, is); - - is->pictq_size++; - SDL_UnlockMutex(is->pictq_mutex); - } - return 0; -} - -/* Compute the exact PTS for the picture if it is omitted in the stream. - * The 'pts1' parameter is the dts of the packet / pts of the frame. */ -static int output_picture2(PlayerState *is, AVFrame *src_frame, double pts1, int64_t pos) -{ - double frame_delay, pts; - int ret; - - pts = pts1; - - if (pts != 0) { - /* update video clock with pts, if present */ - is->video_clock = pts; - } else { - pts = is->video_clock; - } - /* update video clock for next frame */ - frame_delay = av_q2d(is->video_dec->time_base); - /* For MPEG-2, the frame can be repeated, so we update the - clock accordingly */ - frame_delay += src_frame->repeat_pict * (frame_delay * 0.5); - is->video_clock += frame_delay; - - ret = queue_picture(is, src_frame, pts, pos); - av_frame_unref(src_frame); - return ret; -} - -static int get_video_frame(PlayerState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt) -{ - int got_picture, i; - - if (packet_queue_get(&is->videoq, pkt, 1) < 0) - return -1; - - if (pkt->data == flush_pkt.data) { - avcodec_flush_buffers(is->video_dec); - - SDL_LockMutex(is->pictq_mutex); - // Make sure there are no long delay timers (ideally we should just flush the que but thats harder) - for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) { - is->pictq[i].target_clock= 0; - } - while (is->pictq_size && !is->videoq.abort_request) { - SDL_CondWait(is->pictq_cond, is->pictq_mutex); - } - is->video_current_pos = -1; - SDL_UnlockMutex(is->pictq_mutex); - - init_pts_correction(&is->pts_ctx); - is->frame_last_pts = AV_NOPTS_VALUE; - is->frame_last_delay = 0; - is->frame_timer = (double)av_gettime_relative() / 1000000.0; - is->skip_frames = 1; - is->skip_frames_index = 0; - return 0; - } - - avcodec_decode_video2(is->video_dec, frame, &got_picture, pkt); - - if (got_picture) { - if (decoder_reorder_pts == -1) { - *pts = guess_correct_pts(&is->pts_ctx, frame->pkt_pts, frame->pkt_dts); - } else if (decoder_reorder_pts) { - *pts = frame->pkt_pts; - } else { - *pts = frame->pkt_dts; - } - - if (*pts == AV_NOPTS_VALUE) { - *pts = 0; - } - if (is->video_st->sample_aspect_ratio.num) { - frame->sample_aspect_ratio = is->video_st->sample_aspect_ratio; - } - - is->skip_frames_index += 1; - if (is->skip_frames_index >= is->skip_frames) { - is->skip_frames_index -= FFMAX(is->skip_frames, 1.0); - return 1; - } - av_frame_unref(frame); - } - return 0; -} - -static int configure_video_filters(AVFilterGraph *graph, PlayerState *is, const char *vfilters) -{ - char sws_flags_str[128]; - char buffersrc_args[256]; - int ret; - AVFilterContext *filt_src = NULL, *filt_out = NULL, *last_filter; - AVCodecContext *codec = is->video_dec; - - snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%"PRId64, sws_flags); - graph->scale_sws_opts = av_strdup(sws_flags_str); - - snprintf(buffersrc_args, sizeof(buffersrc_args), "%d:%d:%d:%d:%d:%d:%d", - codec->width, codec->height, codec->pix_fmt, - is->video_st->time_base.num, is->video_st->time_base.den, - codec->sample_aspect_ratio.num, codec->sample_aspect_ratio.den); - - - if ((ret = avfilter_graph_create_filter(&filt_src, - avfilter_get_by_name("buffer"), - "src", buffersrc_args, NULL, - graph)) < 0) - return ret; - if ((ret = avfilter_graph_create_filter(&filt_out, - avfilter_get_by_name("buffersink"), - "out", NULL, NULL, graph)) < 0) - return ret; - - last_filter = filt_out; - -/* Note: this macro adds a filter before the lastly added filter, so the - * processing order of the filters is in reverse */ -#define INSERT_FILT(name, arg) do { \ - AVFilterContext *filt_ctx; \ - \ - ret = avfilter_graph_create_filter(&filt_ctx, \ - avfilter_get_by_name(name), \ - "avplay_" name, arg, NULL, graph); \ - if (ret < 0) \ - return ret; \ - \ - ret = avfilter_link(filt_ctx, 0, last_filter, 0); \ - if (ret < 0) \ - return ret; \ - \ - last_filter = filt_ctx; \ -} while (0) - - INSERT_FILT("format", "yuv420p"); - - if (autorotate) { - uint8_t* displaymatrix = av_stream_get_side_data(is->video_st, - AV_PKT_DATA_DISPLAYMATRIX, NULL); - if (displaymatrix) { - double rot = av_display_rotation_get((int32_t*) displaymatrix); - if (rot < -135 || rot > 135) { - INSERT_FILT("vflip", NULL); - INSERT_FILT("hflip", NULL); - } else if (rot < -45) { - INSERT_FILT("transpose", "dir=clock"); - } else if (rot > 45) { - INSERT_FILT("transpose", "dir=cclock"); - } - } - } - - if (vfilters) { - AVFilterInOut *outputs = avfilter_inout_alloc(); - AVFilterInOut *inputs = avfilter_inout_alloc(); - - outputs->name = av_strdup("in"); - outputs->filter_ctx = filt_src; - outputs->pad_idx = 0; - outputs->next = NULL; - - inputs->name = av_strdup("out"); - inputs->filter_ctx = last_filter; - inputs->pad_idx = 0; - inputs->next = NULL; - - if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0) - return ret; - } else { - if ((ret = avfilter_link(filt_src, 0, last_filter, 0)) < 0) - return ret; - } - - if ((ret = avfilter_graph_config(graph, NULL)) < 0) - return ret; - - is->in_video_filter = filt_src; - is->out_video_filter = filt_out; - - return ret; -} - -static int video_thread(void *arg) -{ - AVPacket pkt = { 0 }; - PlayerState *is = arg; - AVFrame *frame = av_frame_alloc(); - int64_t pts_int; - double pts; - int ret; - - AVFilterGraph *graph = avfilter_graph_alloc(); - AVFilterContext *filt_out = NULL, *filt_in = NULL; - int last_w = is->video_dec->width; - int last_h = is->video_dec->height; - if (!graph) { - av_frame_free(&frame); - return AVERROR(ENOMEM); - } - - if ((ret = configure_video_filters(graph, is, vfilters)) < 0) - goto the_end; - filt_in = is->in_video_filter; - filt_out = is->out_video_filter; - - if (!frame) { - avfilter_graph_free(&graph); - return AVERROR(ENOMEM); - } - - for (;;) { - AVRational tb; - while (is->paused && !is->videoq.abort_request) - SDL_Delay(10); - - av_packet_unref(&pkt); - - ret = get_video_frame(is, frame, &pts_int, &pkt); - if (ret < 0) - goto the_end; - - if (!ret) - continue; - - if ( last_w != is->video_dec->width - || last_h != is->video_dec->height) { - av_log(NULL, AV_LOG_TRACE, "Changing size %dx%d -> %dx%d\n", last_w, last_h, - is->video_dec->width, is->video_dec->height); - avfilter_graph_free(&graph); - graph = avfilter_graph_alloc(); - if ((ret = configure_video_filters(graph, is, vfilters)) < 0) - goto the_end; - filt_in = is->in_video_filter; - filt_out = is->out_video_filter; - last_w = is->video_dec->width; - last_h = is->video_dec->height; - } - - frame->pts = pts_int; - ret = av_buffersrc_add_frame(filt_in, frame); - if (ret < 0) - goto the_end; - - while (ret >= 0) { - ret = av_buffersink_get_frame(filt_out, frame); - if (ret < 0) { - ret = 0; - break; - } - - pts_int = frame->pts; - tb = filt_out->inputs[0]->time_base; - if (av_cmp_q(tb, is->video_st->time_base)) { - av_unused int64_t pts1 = pts_int; - pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base); - av_log(NULL, AV_LOG_TRACE, "video_thread(): " - "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n", - tb.num, tb.den, pts1, - is->video_st->time_base.num, is->video_st->time_base.den, pts_int); - } - pts = pts_int * av_q2d(is->video_st->time_base); - ret = output_picture2(is, frame, pts, 0); - } - - if (ret < 0) - goto the_end; - - - if (step) - if (player) - stream_pause(player); - } - the_end: - av_freep(&vfilters); - avfilter_graph_free(&graph); - av_packet_unref(&pkt); - av_frame_free(&frame); - return 0; -} - -static int subtitle_thread(void *arg) -{ - PlayerState *is = arg; - SubPicture *sp; - AVPacket pkt1, *pkt = &pkt1; - int got_subtitle; - double pts; - int i, j; - int r, g, b, y, u, v, a; - - for (;;) { - while (is->paused && !is->subtitleq.abort_request) { - SDL_Delay(10); - } - if (packet_queue_get(&is->subtitleq, pkt, 1) < 0) - break; - - if (pkt->data == flush_pkt.data) { - avcodec_flush_buffers(is->subtitle_dec); - continue; - } - SDL_LockMutex(is->subpq_mutex); - while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE && - !is->subtitleq.abort_request) { - SDL_CondWait(is->subpq_cond, is->subpq_mutex); - } - SDL_UnlockMutex(is->subpq_mutex); - - if (is->subtitleq.abort_request) - return 0; - - sp = &is->subpq[is->subpq_windex]; - - /* NOTE: ipts is the PTS of the _first_ picture beginning in - this packet, if any */ - pts = 0; - if (pkt->pts != AV_NOPTS_VALUE) - pts = av_q2d(is->subtitle_dec->time_base) * pkt->pts; - - avcodec_decode_subtitle2(is->subtitle_dec, &sp->sub, - &got_subtitle, pkt); - - if (got_subtitle && sp->sub.format == 0) { - sp->pts = pts; - - for (i = 0; i < sp->sub.num_rects; i++) - { - for (j = 0; j < sp->sub.rects[i]->nb_colors; j++) - { - RGBA_IN(r, g, b, a, (uint32_t *)sp->sub.rects[i]->data[1] + j); - y = RGB_TO_Y_CCIR(r, g, b); - u = RGB_TO_U_CCIR(r, g, b, 0); - v = RGB_TO_V_CCIR(r, g, b, 0); - YUVA_OUT((uint32_t *)sp->sub.rects[i]->data[1] + j, y, u, v, a); - } - } - - /* now we can update the picture count */ - if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE) - is->subpq_windex = 0; - SDL_LockMutex(is->subpq_mutex); - is->subpq_size++; - SDL_UnlockMutex(is->subpq_mutex); - } - av_packet_unref(pkt); - } - return 0; -} - -/* copy samples for viewing in editor window */ -static void update_sample_display(PlayerState *is, short *samples, int samples_size) -{ - int size, len; - - size = samples_size / sizeof(short); - while (size > 0) { - len = SAMPLE_ARRAY_SIZE - is->sample_array_index; - if (len > size) - len = size; - memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short)); - samples += len; - is->sample_array_index += len; - if (is->sample_array_index >= SAMPLE_ARRAY_SIZE) - is->sample_array_index = 0; - size -= len; - } -} - -/* return the new audio buffer size (samples can be added or deleted - to get better sync if video or external master clock) */ -static int synchronize_audio(PlayerState *is, short *samples, - int samples_size1, double pts) -{ - int n, samples_size; - double ref_clock; - - n = is->sdl_channels * av_get_bytes_per_sample(is->sdl_sample_fmt); - samples_size = samples_size1; - - /* if not master, then we try to remove or add samples to correct the clock */ - if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) || - is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) { - double diff, avg_diff; - int wanted_size, min_size, max_size, nb_samples; - - ref_clock = get_master_clock(is); - diff = get_audio_clock(is) - ref_clock; - - if (diff < AV_NOSYNC_THRESHOLD) { - is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum; - if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) { - /* not enough measures to have a correct estimate */ - is->audio_diff_avg_count++; - } else { - /* estimate the A-V difference */ - avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef); - - if (fabs(avg_diff) >= is->audio_diff_threshold) { - wanted_size = samples_size + ((int)(diff * is->sdl_sample_rate) * n); - nb_samples = samples_size / n; - - min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n; - max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n; - if (wanted_size < min_size) - wanted_size = min_size; - else if (wanted_size > max_size) - wanted_size = max_size; - - /* add or remove samples to correction the synchro */ - if (wanted_size < samples_size) { - /* remove samples */ - samples_size = wanted_size; - } else if (wanted_size > samples_size) { - uint8_t *samples_end, *q; - int nb; - - /* add samples */ - nb = (samples_size - wanted_size); - samples_end = (uint8_t *)samples + samples_size - n; - q = samples_end + n; - while (nb > 0) { - memcpy(q, samples_end, n); - q += n; - nb -= n; - } - samples_size = wanted_size; - } - } - av_log(NULL, AV_LOG_TRACE, "diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n", - diff, avg_diff, samples_size - samples_size1, - is->audio_clock, is->video_clock, is->audio_diff_threshold); - } - } else { - /* too big difference : may be initial PTS errors, so - reset A-V filter */ - is->audio_diff_avg_count = 0; - is->audio_diff_cum = 0; - } - } - - return samples_size; -} - -/* decode one audio frame and returns its uncompressed size */ -static int audio_decode_frame(PlayerState *is, double *pts_ptr) -{ - AVPacket *pkt_temp = &is->audio_pkt_temp; - AVPacket *pkt = &is->audio_pkt; - AVCodecContext *dec = is->audio_dec; - int n, len1, data_size, got_frame; - double pts; - int new_packet = 0; - int flush_complete = 0; - - for (;;) { - /* NOTE: the audio packet can contain several frames */ - while (pkt_temp->size > 0 || (!pkt_temp->data && new_packet)) { - int resample_changed, audio_resample; - - if (!is->frame) { - if (!(is->frame = av_frame_alloc())) - return AVERROR(ENOMEM); - } - - if (flush_complete) - break; - new_packet = 0; - len1 = avcodec_decode_audio4(dec, is->frame, &got_frame, pkt_temp); - if (len1 < 0) { - /* if error, we skip the frame */ - pkt_temp->size = 0; - break; - } - - pkt_temp->data += len1; - pkt_temp->size -= len1; - - if (!got_frame) { - /* stop sending empty packets if the decoder is finished */ - if (!pkt_temp->data && (dec->codec->capabilities & AV_CODEC_CAP_DELAY)) - flush_complete = 1; - continue; - } - data_size = av_samples_get_buffer_size(NULL, dec->channels, - is->frame->nb_samples, - is->frame->format, 1); - - audio_resample = is->frame->format != is->sdl_sample_fmt || - is->frame->channel_layout != is->sdl_channel_layout || - is->frame->sample_rate != is->sdl_sample_rate; - - resample_changed = is->frame->format != is->resample_sample_fmt || - is->frame->channel_layout != is->resample_channel_layout || - is->frame->sample_rate != is->resample_sample_rate; - - if ((!is->avr && audio_resample) || resample_changed) { - int ret; - if (is->avr) - avresample_close(is->avr); - else if (audio_resample) { - is->avr = avresample_alloc_context(); - if (!is->avr) { - fprintf(stderr, "error allocating AVAudioResampleContext\n"); - break; - } - } - if (audio_resample) { - av_opt_set_int(is->avr, "in_channel_layout", is->frame->channel_layout, 0); - av_opt_set_int(is->avr, "in_sample_fmt", is->frame->format, 0); - av_opt_set_int(is->avr, "in_sample_rate", is->frame->sample_rate, 0); - av_opt_set_int(is->avr, "out_channel_layout", is->sdl_channel_layout, 0); - av_opt_set_int(is->avr, "out_sample_fmt", is->sdl_sample_fmt, 0); - av_opt_set_int(is->avr, "out_sample_rate", is->sdl_sample_rate, 0); - - if ((ret = avresample_open(is->avr)) < 0) { - fprintf(stderr, "error initializing libavresample\n"); - break; - } - } - is->resample_sample_fmt = is->frame->format; - is->resample_channel_layout = is->frame->channel_layout; - is->resample_sample_rate = is->frame->sample_rate; - } - - if (audio_resample) { - void *tmp_out; - int out_samples, out_size, out_linesize; - int osize = av_get_bytes_per_sample(is->sdl_sample_fmt); - int nb_samples = is->frame->nb_samples; - - out_size = av_samples_get_buffer_size(&out_linesize, - is->sdl_channels, - nb_samples, - is->sdl_sample_fmt, 0); - tmp_out = av_realloc(is->audio_buf1, out_size); - if (!tmp_out) - return AVERROR(ENOMEM); - is->audio_buf1 = tmp_out; - - out_samples = avresample_convert(is->avr, - &is->audio_buf1, - out_linesize, nb_samples, - is->frame->data, - is->frame->linesize[0], - is->frame->nb_samples); - if (out_samples < 0) { - fprintf(stderr, "avresample_convert() failed\n"); - break; - } - is->audio_buf = is->audio_buf1; - data_size = out_samples * osize * is->sdl_channels; - } else { - is->audio_buf = is->frame->data[0]; - } - - /* if no pts, then compute it */ - pts = is->audio_clock; - *pts_ptr = pts; - n = is->sdl_channels * av_get_bytes_per_sample(is->sdl_sample_fmt); - is->audio_clock += (double)data_size / - (double)(n * is->sdl_sample_rate); -#ifdef DEBUG - { - static double last_clock; - printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n", - is->audio_clock - last_clock, - is->audio_clock, pts); - last_clock = is->audio_clock; - } -#endif - return data_size; - } - - /* free the current packet */ - if (pkt->data) - av_packet_unref(pkt); - memset(pkt_temp, 0, sizeof(*pkt_temp)); - - if (is->paused || is->audioq.abort_request) { - return -1; - } - - /* read next packet */ - if ((new_packet = packet_queue_get(&is->audioq, pkt, 1)) < 0) - return -1; - - if (pkt->data == flush_pkt.data) { - avcodec_flush_buffers(dec); - flush_complete = 0; - } - - *pkt_temp = *pkt; - - /* if update the audio clock with the pts */ - if (pkt->pts != AV_NOPTS_VALUE) { - is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts; - } - } -} - -/* prepare a new audio buffer */ -static void sdl_audio_callback(void *opaque, Uint8 *stream, int len) -{ - PlayerState *is = opaque; - int audio_size, len1; - double pts; - - audio_callback_time = av_gettime_relative(); - - while (len > 0) { - if (is->audio_buf_index >= is->audio_buf_size) { - audio_size = audio_decode_frame(is, &pts); - if (audio_size < 0) { - /* if error, just output silence */ - is->audio_buf = is->silence_buf; - is->audio_buf_size = sizeof(is->silence_buf); - } else { - if (is->show_audio) - update_sample_display(is, (int16_t *)is->audio_buf, audio_size); - audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size, - pts); - is->audio_buf_size = audio_size; - } - is->audio_buf_index = 0; - } - len1 = is->audio_buf_size - is->audio_buf_index; - if (len1 > len) - len1 = len; - memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1); - len -= len1; - stream += len1; - is->audio_buf_index += len1; - } -} - -static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type) -{ - const AVCodecDescriptor *desc; - AVCodec *codec = avcodec_find_decoder_by_name(name); - - if (!codec && (desc = avcodec_descriptor_get_by_name(name))) { - codec = avcodec_find_decoder(desc->id); - if (codec) - av_log(NULL, AV_LOG_VERBOSE, "Matched decoder '%s' for codec '%s'.\n", - codec->name, desc->name); - } - - if (!codec) { - av_log(NULL, AV_LOG_FATAL, "Unknown decoder '%s'\n", name); - exit_program(1); - } - - if (codec->type != type) { - av_log(NULL, AV_LOG_FATAL, "Invalid decoder type '%s'\n", name); - exit_program(1); - } - - return codec; -} - -static AVCodec *choose_decoder(PlayerState *is, AVFormatContext *ic, AVStream *st) -{ - char *codec_name = NULL; - int i, ret; - - for (i = 0; i < is->nb_codec_names; i++) { - char *spec = is->codec_names[i].specifier; - if ((ret = check_stream_specifier(ic, st, spec)) > 0) - codec_name = is->codec_names[i].u.str; - else if (ret < 0) - exit_program(1); - } - - if (codec_name) { - AVCodec *codec = find_codec_or_die(codec_name, st->codecpar->codec_type); - st->codecpar->codec_id = codec->id; - return codec; - } else - return avcodec_find_decoder(st->codecpar->codec_id); -} - -/* open a given stream. Return 0 if OK */ -static int stream_component_open(PlayerState *is, int stream_index) -{ - AVFormatContext *ic = is->ic; - AVCodecContext *avctx; - AVCodec *codec; - SDL_AudioSpec wanted_spec, spec; - AVDictionary *opts; - AVDictionaryEntry *t = NULL; - int ret = 0; - - if (stream_index < 0 || stream_index >= ic->nb_streams) - return -1; - - avctx = avcodec_alloc_context3(NULL); - if (!avctx) - return AVERROR(ENOMEM); - - ret = avcodec_parameters_to_context(avctx, ic->streams[stream_index]->codecpar); - if (ret < 0) { - avcodec_free_context(&avctx); - return ret; - } - - opts = filter_codec_opts(codec_opts, avctx->codec_id, ic, ic->streams[stream_index], NULL); - - codec = choose_decoder(is, ic, ic->streams[stream_index]); - avctx->workaround_bugs = workaround_bugs; - avctx->idct_algo = idct; - avctx->skip_frame = skip_frame; - avctx->skip_idct = skip_idct; - avctx->skip_loop_filter = skip_loop_filter; - avctx->error_concealment = error_concealment; - - if (fast) - avctx->flags2 |= AV_CODEC_FLAG2_FAST; - - if (!av_dict_get(opts, "threads", NULL, 0)) - av_dict_set(&opts, "threads", "auto", 0); - if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) - av_dict_set(&opts, "refcounted_frames", "1", 0); - if (!codec || - (ret = avcodec_open2(avctx, codec, &opts)) < 0) { - goto fail; - } - if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) { - av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key); - ret = AVERROR_OPTION_NOT_FOUND; - goto fail; - } - - /* prepare audio output */ - if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) { - is->sdl_sample_rate = avctx->sample_rate; - - if (!avctx->channel_layout) - avctx->channel_layout = av_get_default_channel_layout(avctx->channels); - if (!avctx->channel_layout) { - fprintf(stderr, "unable to guess channel layout\n"); - ret = AVERROR_INVALIDDATA; - goto fail; - } - if (avctx->channels == 1) - is->sdl_channel_layout = AV_CH_LAYOUT_MONO; - else - is->sdl_channel_layout = AV_CH_LAYOUT_STEREO; - is->sdl_channels = av_get_channel_layout_nb_channels(is->sdl_channel_layout); - - wanted_spec.format = AUDIO_S16SYS; - wanted_spec.freq = is->sdl_sample_rate; - wanted_spec.channels = is->sdl_channels; - wanted_spec.silence = 0; - wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE; - wanted_spec.callback = sdl_audio_callback; - wanted_spec.userdata = is; - if (SDL_OpenAudio(&wanted_spec, &spec) < 0) { - fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError()); - ret = AVERROR_UNKNOWN; - goto fail; - } - is->audio_hw_buf_size = spec.size; - is->sdl_sample_fmt = AV_SAMPLE_FMT_S16; - is->resample_sample_fmt = is->sdl_sample_fmt; - is->resample_channel_layout = avctx->channel_layout; - is->resample_sample_rate = avctx->sample_rate; - } - - ic->streams[stream_index]->discard = AVDISCARD_DEFAULT; - switch (avctx->codec_type) { - case AVMEDIA_TYPE_AUDIO: - is->audio_stream = stream_index; - is->audio_st = ic->streams[stream_index]; - is->audio_dec = avctx; - is->audio_buf_size = 0; - is->audio_buf_index = 0; - - /* init averaging filter */ - is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB); - is->audio_diff_avg_count = 0; - /* since we do not have a precise enough audio FIFO fullness, - we correct audio sync only if larger than this threshold */ - is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate; - - memset(&is->audio_pkt, 0, sizeof(is->audio_pkt)); - packet_queue_init(&is->audioq); - SDL_PauseAudio(0); - break; - case AVMEDIA_TYPE_VIDEO: - is->video_stream = stream_index; - is->video_st = ic->streams[stream_index]; - is->video_dec = avctx; - - packet_queue_init(&is->videoq); - is->video_tid = SDL_CreateThread(video_thread, is); - break; - case AVMEDIA_TYPE_SUBTITLE: - is->subtitle_stream = stream_index; - is->subtitle_st = ic->streams[stream_index]; - is->subtitle_dec = avctx; - packet_queue_init(&is->subtitleq); - - is->subtitle_tid = SDL_CreateThread(subtitle_thread, is); - break; - default: - break; - } - -fail: - av_dict_free(&opts); - - return ret; -} - -static void stream_component_close(PlayerState *is, int stream_index) -{ - AVFormatContext *ic = is->ic; - AVCodecParameters *par; - - if (stream_index < 0 || stream_index >= ic->nb_streams) - return; - par = ic->streams[stream_index]->codecpar; - - switch (par->codec_type) { - case AVMEDIA_TYPE_AUDIO: - packet_queue_abort(&is->audioq); - - SDL_CloseAudio(); - - packet_queue_end(&is->audioq); - av_packet_unref(&is->audio_pkt); - if (is->avr) - avresample_free(&is->avr); - av_freep(&is->audio_buf1); - is->audio_buf = NULL; - av_frame_free(&is->frame); - - if (is->rdft) { - av_rdft_end(is->rdft); - av_freep(&is->rdft_data); - is->rdft = NULL; - is->rdft_bits = 0; - } - break; - case AVMEDIA_TYPE_VIDEO: - packet_queue_abort(&is->videoq); - - /* note: we also signal this mutex to make sure we deblock the - video thread in all cases */ - SDL_LockMutex(is->pictq_mutex); - SDL_CondSignal(is->pictq_cond); - SDL_UnlockMutex(is->pictq_mutex); - - SDL_WaitThread(is->video_tid, NULL); - - packet_queue_end(&is->videoq); - break; - case AVMEDIA_TYPE_SUBTITLE: - packet_queue_abort(&is->subtitleq); - - /* note: we also signal this mutex to make sure we deblock the - video thread in all cases */ - SDL_LockMutex(is->subpq_mutex); - is->subtitle_stream_changed = 1; - - SDL_CondSignal(is->subpq_cond); - SDL_UnlockMutex(is->subpq_mutex); - - SDL_WaitThread(is->subtitle_tid, NULL); - - packet_queue_end(&is->subtitleq); - break; - default: - break; - } - - ic->streams[stream_index]->discard = AVDISCARD_ALL; - switch (par->codec_type) { - case AVMEDIA_TYPE_AUDIO: - avcodec_free_context(&is->audio_dec); - is->audio_st = NULL; - is->audio_stream = -1; - break; - case AVMEDIA_TYPE_VIDEO: - avcodec_free_context(&is->video_dec); - is->video_st = NULL; - is->video_stream = -1; - break; - case AVMEDIA_TYPE_SUBTITLE: - avcodec_free_context(&is->subtitle_dec); - is->subtitle_st = NULL; - is->subtitle_stream = -1; - break; - default: - break; - } -} - -/* since we have only one decoding thread, we can use a global - variable instead of a thread local variable */ -static PlayerState *global_video_state; - -static int decode_interrupt_cb(void *ctx) -{ - return global_video_state && global_video_state->abort_request; -} - -static void stream_close(PlayerState *is) -{ - /* disable interrupting */ - global_video_state = NULL; - - /* close each stream */ - if (is->audio_stream >= 0) - stream_component_close(is, is->audio_stream); - if (is->video_stream >= 0) - stream_component_close(is, is->video_stream); - if (is->subtitle_stream >= 0) - stream_component_close(is, is->subtitle_stream); - if (is->ic) { - avformat_close_input(&is->ic); - } -} - -static int stream_setup(PlayerState *is) -{ - AVFormatContext *ic = NULL; - int err, i, ret; - int st_index[AVMEDIA_TYPE_NB]; - AVDictionaryEntry *t; - AVDictionary **opts; - int orig_nb_streams; - - memset(st_index, -1, sizeof(st_index)); - is->video_stream = -1; - is->audio_stream = -1; - is->subtitle_stream = -1; - - global_video_state = is; - - ic = avformat_alloc_context(); - if (!ic) { - av_log(NULL, AV_LOG_FATAL, "Could not allocate context.\n"); - ret = AVERROR(ENOMEM); - goto fail; - } - ic->interrupt_callback.callback = decode_interrupt_cb; - err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts); - if (err < 0) { - print_error(is->filename, err); - ret = -1; - goto fail; - } - - if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) { - av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key); - ret = AVERROR_OPTION_NOT_FOUND; - goto fail; - } - is->ic = ic; - - if (genpts) - ic->flags |= AVFMT_FLAG_GENPTS; - - opts = setup_find_stream_info_opts(ic, codec_opts); - orig_nb_streams = ic->nb_streams; - - for (i = 0; i < ic->nb_streams; i++) - choose_decoder(is, ic, ic->streams[i]); - - err = avformat_find_stream_info(ic, opts); - - for (i = 0; i < orig_nb_streams; i++) - av_dict_free(&opts[i]); - av_freep(&opts); - - if (err < 0) { - fprintf(stderr, "%s: could not find codec parameters\n", is->filename); - ret = -1; - goto fail; - } - - if (ic->pb) - ic->pb->eof_reached = 0; // FIXME hack, avplay maybe should not use url_feof() to test for the end - - if (seek_by_bytes < 0) - seek_by_bytes = !!(ic->iformat->flags & AVFMT_TS_DISCONT); - - /* if seeking requested, we execute it */ - if (start_time != AV_NOPTS_VALUE) { - int64_t timestamp; - - timestamp = start_time; - /* add the stream start time */ - if (ic->start_time != AV_NOPTS_VALUE) - timestamp += ic->start_time; - ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0); - if (ret < 0) { - fprintf(stderr, "%s: could not seek to position %0.3f\n", - is->filename, (double)timestamp / AV_TIME_BASE); - } - } - - for (i = 0; i < ic->nb_streams; i++) - ic->streams[i]->discard = AVDISCARD_ALL; - if (!video_disable) - st_index[AVMEDIA_TYPE_VIDEO] = - av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO, - wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0); - if (!audio_disable) - st_index[AVMEDIA_TYPE_AUDIO] = - av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO, - wanted_stream[AVMEDIA_TYPE_AUDIO], - st_index[AVMEDIA_TYPE_VIDEO], - NULL, 0); - if (!video_disable) - st_index[AVMEDIA_TYPE_SUBTITLE] = - av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE, - wanted_stream[AVMEDIA_TYPE_SUBTITLE], - (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ? - st_index[AVMEDIA_TYPE_AUDIO] : - st_index[AVMEDIA_TYPE_VIDEO]), - NULL, 0); - if (show_status) { - av_dump_format(ic, 0, is->filename, 0); - } - - /* open the streams */ - if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) { - stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]); - } - - ret = -1; - if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) { - ret = stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]); - } - if (ret < 0) { - if (!display_disable) - is->show_audio = 2; - } - - if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) { - stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]); - } - - if (is->video_stream < 0 && is->audio_stream < 0) { - fprintf(stderr, "%s: could not open codecs\n", is->filename); - ret = -1; - goto fail; - } - - return 0; - -fail: - return ret; -} - -/* this thread gets the stream from the disk or the network */ -static int decode_thread(void *arg) -{ - PlayerState *is = arg; - AVPacket pkt1, *pkt = &pkt1; - AVFormatContext *ic = is->ic; - int pkt_in_play_range = 0; - int ret, eof = 0; - - for (;;) { - if (is->abort_request) - break; - if (is->paused != is->last_paused) { - is->last_paused = is->paused; - if (is->paused) - is->read_pause_return = av_read_pause(ic); - else - av_read_play(ic); - } -#if CONFIG_RTSP_DEMUXER - if (is->paused && !strcmp(ic->iformat->name, "rtsp")) { - /* wait 10 ms to avoid trying to get another packet */ - /* XXX: horrible */ - SDL_Delay(10); - continue; - } -#endif - if (is->seek_req) { - int64_t seek_target = is->seek_pos; - int64_t seek_min = is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN; - int64_t seek_max = is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX; -// FIXME the +-2 is due to rounding being not done in the correct direction in generation -// of the seek_pos/seek_rel variables - - ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags); - if (ret < 0) { - fprintf(stderr, "%s: error while seeking\n", is->ic->filename); - } else { - if (is->audio_stream >= 0) { - packet_queue_flush(&is->audioq); - packet_queue_put(&is->audioq, &flush_pkt); - } - if (is->subtitle_stream >= 0) { - packet_queue_flush(&is->subtitleq); - packet_queue_put(&is->subtitleq, &flush_pkt); - } - if (is->video_stream >= 0) { - packet_queue_flush(&is->videoq); - packet_queue_put(&is->videoq, &flush_pkt); - } - } - is->seek_req = 0; - eof = 0; - } - - /* if the queue are full, no need to read more */ - if (!infinite_buffer && - (is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE - || ( (is->audioq .size > MIN_AUDIOQ_SIZE || is->audio_stream < 0) - && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream < 0) - && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream < 0)))) { - /* wait 10 ms */ - SDL_Delay(10); - continue; - } - if (eof) { - if (is->video_stream >= 0) { - av_init_packet(pkt); - pkt->data = NULL; - pkt->size = 0; - pkt->stream_index = is->video_stream; - packet_queue_put(&is->videoq, pkt); - } - if (is->audio_stream >= 0 && - (is->audio_dec->codec->capabilities & AV_CODEC_CAP_DELAY)) { - av_init_packet(pkt); - pkt->data = NULL; - pkt->size = 0; - pkt->stream_index = is->audio_stream; - packet_queue_put(&is->audioq, pkt); - } - SDL_Delay(10); - if (is->audioq.size + is->videoq.size + is->subtitleq.size == 0) { - if (loop != 1 && (!loop || --loop)) { - stream_seek(player, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0); - } else if (!noautoexit) { - ret = AVERROR_EOF; - goto fail; - } - } - continue; - } - ret = av_read_frame(ic, pkt); - if (ret < 0) { - if (ret == AVERROR_EOF || (ic->pb && ic->pb->eof_reached)) - eof = 1; - if (ic->pb && ic->pb->error) - break; - SDL_Delay(100); /* wait for user event */ - continue; - } - /* check if packet is in play range specified by user, then queue, otherwise discard */ - pkt_in_play_range = duration == AV_NOPTS_VALUE || - (pkt->pts - ic->streams[pkt->stream_index]->start_time) * - av_q2d(ic->streams[pkt->stream_index]->time_base) - - (double)(start_time != AV_NOPTS_VALUE ? start_time : 0) / 1000000 - <= ((double)duration / 1000000); - if (pkt->stream_index == is->audio_stream && pkt_in_play_range) { - packet_queue_put(&is->audioq, pkt); - } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) { - packet_queue_put(&is->videoq, pkt); - } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) { - packet_queue_put(&is->subtitleq, pkt); - } else { - av_packet_unref(pkt); - } - } - /* wait until the end */ - while (!is->abort_request) { - SDL_Delay(100); - } - - ret = 0; - -fail: - stream_close(is); - - if (ret != 0) { - SDL_Event event; - - event.type = FF_QUIT_EVENT; - event.user.data1 = is; - SDL_PushEvent(&event); - } - return 0; -} - -static int stream_open(PlayerState *is, - const char *filename, AVInputFormat *iformat) -{ - int ret; - - av_strlcpy(is->filename, filename, sizeof(is->filename)); - is->iformat = iformat; - is->ytop = 0; - is->xleft = 0; - - if ((ret = stream_setup(is)) < 0) { - return ret; - } - - /* start video display */ - is->pictq_mutex = SDL_CreateMutex(); - is->pictq_cond = SDL_CreateCond(); - - is->subpq_mutex = SDL_CreateMutex(); - is->subpq_cond = SDL_CreateCond(); - - is->av_sync_type = av_sync_type; - is->refresh_tid = SDL_CreateThread(refresh_thread, is); - if (!is->refresh_tid) - return -1; - is->parse_tid = SDL_CreateThread(decode_thread, is); - if (!is->parse_tid) - return -1; - return 0; -} - -static void stream_cycle_channel(PlayerState *is, int codec_type) -{ - AVFormatContext *ic = is->ic; - int start_index, stream_index; - AVStream *st; - - if (codec_type == AVMEDIA_TYPE_VIDEO) - start_index = is->video_stream; - else if (codec_type == AVMEDIA_TYPE_AUDIO) - start_index = is->audio_stream; - else - start_index = is->subtitle_stream; - if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0)) - return; - stream_index = start_index; - for (;;) { - if (++stream_index >= is->ic->nb_streams) - { - if (codec_type == AVMEDIA_TYPE_SUBTITLE) - { - stream_index = -1; - goto the_end; - } else - stream_index = 0; - } - if (stream_index == start_index) - return; - st = ic->streams[stream_index]; - if (st->codecpar->codec_type == codec_type) { - /* check that parameters are OK */ - switch (codec_type) { - case AVMEDIA_TYPE_AUDIO: - if (st->codecpar->sample_rate != 0 && - st->codecpar->channels != 0) - goto the_end; - break; - case AVMEDIA_TYPE_VIDEO: - case AVMEDIA_TYPE_SUBTITLE: - goto the_end; - default: - break; - } - } - } - the_end: - stream_component_close(is, start_index); - stream_component_open(is, stream_index); -} - - -static void toggle_full_screen(void) -{ -#if defined(__APPLE__) && SDL_VERSION_ATLEAST(1, 2, 14) - /* OS X needs to empty the picture_queue */ - int i; - for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) - player->pictq[i].reallocate = 1; -#endif - is_full_screen = !is_full_screen; - video_open(player); -} - -static void toggle_pause(void) -{ - if (player) - stream_pause(player); - step = 0; -} - -static void step_to_next_frame(void) -{ - if (player) { - /* if the stream is paused unpause it, then step */ - if (player->paused) - stream_pause(player); - } - step = 1; -} - -static void toggle_audio_display(void) -{ - if (player) { - int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00); - player->show_audio = (player->show_audio + 1) % 3; - fill_rectangle(screen, - player->xleft, player->ytop, player->width, player->height, - bgcolor); - SDL_UpdateRect(screen, player->xleft, player->ytop, player->width, player->height); - } -} - -static void seek_chapter(PlayerState *is, int incr) -{ - int64_t pos = get_master_clock(is) * AV_TIME_BASE; - int i; - - if (!is->ic->nb_chapters) - return; - - /* find the current chapter */ - for (i = 0; i < is->ic->nb_chapters; i++) { - AVChapter *ch = is->ic->chapters[i]; - if (av_compare_ts(pos, AV_TIME_BASE_Q, ch->start, ch->time_base) < 0) { - i--; - break; - } - } - - i += incr; - i = FFMAX(i, 0); - if (i >= is->ic->nb_chapters) - return; - - av_log(NULL, AV_LOG_VERBOSE, "Seeking to chapter %d.\n", i); - stream_seek(is, av_rescale_q(is->ic->chapters[i]->start, is->ic->chapters[i]->time_base, - AV_TIME_BASE_Q), 0, 0); -} - -/* handle an event sent by the GUI */ -static void event_loop(void) -{ - SDL_Event event; - double incr, pos, frac; - - for (;;) { - double x; - SDL_WaitEvent(&event); - switch (event.type) { - case SDL_KEYDOWN: - if (exit_on_keydown) { - do_exit(); - break; - } - switch (event.key.keysym.sym) { - case SDLK_ESCAPE: - case SDLK_q: - do_exit(); - break; - case SDLK_f: - toggle_full_screen(); - break; - case SDLK_p: - case SDLK_SPACE: - toggle_pause(); - break; - case SDLK_s: // S: Step to next frame - step_to_next_frame(); - break; - case SDLK_a: - if (player) - stream_cycle_channel(player, AVMEDIA_TYPE_AUDIO); - break; - case SDLK_v: - if (player) - stream_cycle_channel(player, AVMEDIA_TYPE_VIDEO); - break; - case SDLK_t: - if (player) - stream_cycle_channel(player, AVMEDIA_TYPE_SUBTITLE); - break; - case SDLK_w: - toggle_audio_display(); - break; - case SDLK_PAGEUP: - seek_chapter(player, 1); - break; - case SDLK_PAGEDOWN: - seek_chapter(player, -1); - break; - case SDLK_LEFT: - incr = -10.0; - goto do_seek; - case SDLK_RIGHT: - incr = 10.0; - goto do_seek; - case SDLK_UP: - incr = 60.0; - goto do_seek; - case SDLK_DOWN: - incr = -60.0; - do_seek: - if (player) { - if (seek_by_bytes) { - if (player->video_stream >= 0 && player->video_current_pos >= 0) { - pos = player->video_current_pos; - } else if (player->audio_stream >= 0 && player->audio_pkt.pos >= 0) { - pos = player->audio_pkt.pos; - } else - pos = avio_tell(player->ic->pb); - if (player->ic->bit_rate) - incr *= player->ic->bit_rate / 8.0; - else - incr *= 180000.0; - pos += incr; - stream_seek(player, pos, incr, 1); - } else { - pos = get_master_clock(player); - pos += incr; - stream_seek(player, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0); - } - } - break; - default: - break; - } - break; - case SDL_MOUSEBUTTONDOWN: - if (exit_on_mousedown) { - do_exit(); - break; - } - case SDL_MOUSEMOTION: - if (event.type == SDL_MOUSEBUTTONDOWN) { - x = event.button.x; - } else { - if (event.motion.state != SDL_PRESSED) - break; - x = event.motion.x; - } - if (player) { - if (seek_by_bytes || player->ic->duration <= 0) { - uint64_t size = avio_size(player->ic->pb); - stream_seek(player, size*x/player->width, 0, 1); - } else { - int64_t ts; - int ns, hh, mm, ss; - int tns, thh, tmm, tss; - tns = player->ic->duration / 1000000LL; - thh = tns / 3600; - tmm = (tns % 3600) / 60; - tss = (tns % 60); - frac = x / player->width; - ns = frac * tns; - hh = ns / 3600; - mm = (ns % 3600) / 60; - ss = (ns % 60); - fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100, - hh, mm, ss, thh, tmm, tss); - ts = frac * player->ic->duration; - if (player->ic->start_time != AV_NOPTS_VALUE) - ts += player->ic->start_time; - stream_seek(player, ts, 0, 0); - } - } - break; - case SDL_VIDEORESIZE: - if (player) { - screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0, - SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL); - screen_width = player->width = event.resize.w; - screen_height = player->height = event.resize.h; - } - break; - case SDL_QUIT: - case FF_QUIT_EVENT: - do_exit(); - break; - case FF_ALLOC_EVENT: - video_open(event.user.data1); - alloc_picture(event.user.data1); - break; - case FF_REFRESH_EVENT: - video_refresh_timer(event.user.data1); - player->refresh = 0; - break; - default: - break; - } - } -} - -static int opt_frame_size(void *optctx, const char *opt, const char *arg) -{ - av_log(NULL, AV_LOG_ERROR, - "Option '%s' has been removed, use private format options instead\n", opt); - return AVERROR(EINVAL); -} - -static int opt_width(void *optctx, const char *opt, const char *arg) -{ - screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX); - return 0; -} - -static int opt_height(void *optctx, const char *opt, const char *arg) -{ - screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX); - return 0; -} - -static int opt_format(void *optctx, const char *opt, const char *arg) -{ - file_iformat = av_find_input_format(arg); - if (!file_iformat) { - fprintf(stderr, "Unknown input format: %s\n", arg); - return AVERROR(EINVAL); - } - return 0; -} - -static int opt_frame_pix_fmt(void *optctx, const char *opt, const char *arg) -{ - av_log(NULL, AV_LOG_ERROR, - "Option '%s' has been removed, use private format options instead\n", opt); - return AVERROR(EINVAL); -} - -static int opt_sync(void *optctx, const char *opt, const char *arg) -{ - if (!strcmp(arg, "audio")) - av_sync_type = AV_SYNC_AUDIO_MASTER; - else if (!strcmp(arg, "video")) - av_sync_type = AV_SYNC_VIDEO_MASTER; - else if (!strcmp(arg, "ext")) - av_sync_type = AV_SYNC_EXTERNAL_CLOCK; - else { - fprintf(stderr, "Unknown value for %s: %s\n", opt, arg); - exit(1); - } - return 0; -} - -static int opt_seek(void *optctx, const char *opt, const char *arg) -{ - start_time = parse_time_or_die(opt, arg, 1); - return 0; -} - -static int opt_duration(void *optctx, const char *opt, const char *arg) -{ - duration = parse_time_or_die(opt, arg, 1); - return 0; -} - -#define OFF(x) offsetof(PlayerState, x) -static const OptionDef options[] = { -#include "cmdutils_common_opts.h" - { "x", HAS_ARG, { .func_arg = opt_width }, "force displayed width", "width" }, - { "y", HAS_ARG, { .func_arg = opt_height }, "force displayed height", "height" }, - { "s", HAS_ARG | OPT_VIDEO, { .func_arg = opt_frame_size }, "set frame size (WxH or abbreviation)", "size" }, - { "fs", OPT_BOOL, { &is_full_screen }, "force full screen" }, - { "an", OPT_BOOL, { &audio_disable }, "disable audio" }, - { "vn", OPT_BOOL, { &video_disable }, "disable video" }, - { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_AUDIO] }, "select desired audio stream", "stream_number" }, - { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_VIDEO] }, "select desired video stream", "stream_number" }, - { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_SUBTITLE] }, "select desired subtitle stream", "stream_number" }, - { "ss", HAS_ARG, { .func_arg = opt_seek }, "seek to a given position in seconds", "pos" }, - { "t", HAS_ARG, { .func_arg = opt_duration }, "play \"duration\" seconds of audio/video", "duration" }, - { "bytes", OPT_INT | HAS_ARG, { &seek_by_bytes }, "seek by bytes 0=off 1=on -1=auto", "val" }, - { "nodisp", OPT_BOOL, { &display_disable }, "disable graphical display" }, - { "f", HAS_ARG, { .func_arg = opt_format }, "force format", "fmt" }, - { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_frame_pix_fmt }, "set pixel format", "format" }, - { "stats", OPT_BOOL | OPT_EXPERT, { &show_status }, "show status", "" }, - { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, { &workaround_bugs }, "workaround bugs", "" }, - { "fast", OPT_BOOL | OPT_EXPERT, { &fast }, "non spec compliant optimizations", "" }, - { "genpts", OPT_BOOL | OPT_EXPERT, { &genpts }, "generate pts", "" }, - { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, { &decoder_reorder_pts }, "let decoder reorder pts 0=off 1=on -1=auto", ""}, - { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, { &skip_loop_filter }, "", "" }, - { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, { &skip_frame }, "", "" }, - { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, { &skip_idct }, "", "" }, - { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, { &idct }, "set idct algo", "algo" }, - { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, { &error_concealment }, "set error concealment options", "bit_mask" }, - { "sync", HAS_ARG | OPT_EXPERT, { .func_arg = opt_sync }, "set audio-video sync. type (type=audio/video/ext)", "type" }, - { "noautoexit", OPT_BOOL | OPT_EXPERT, { &noautoexit }, "Do not exit at the end of playback", "" }, - { "exitonkeydown", OPT_BOOL | OPT_EXPERT, { &exit_on_keydown }, "exit on key down", "" }, - { "exitonmousedown", OPT_BOOL | OPT_EXPERT, { &exit_on_mousedown }, "exit on mouse down", "" }, - { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, { &loop }, "set number of times the playback shall be looped", "loop count" }, - { "framedrop", OPT_BOOL | OPT_EXPERT, { &framedrop }, "drop frames when cpu is too slow", "" }, - { "infbuf", OPT_BOOL | OPT_EXPERT, { &infinite_buffer }, "don't limit the input buffer size (useful with realtime streams)", "" }, - { "window_title", OPT_STRING | HAS_ARG, { &window_title }, "set window title", "window title" }, - { "vf", OPT_STRING | HAS_ARG, { &vfilters }, "video filters", "filter list" }, - { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, { &rdftspeed }, "rdft speed", "msecs" }, - { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, { opt_default }, "generic catch all option", "" }, - { "i", 0, { NULL }, "avconv compatibility dummy option", ""}, - { "autorotate", OPT_BOOL, { &autorotate }, "automatically rotate video", "" }, - { "c", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_INPUT, { .off = OFF(codec_names) }, "codec name", "codec" }, - { "codec", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_INPUT, { .off = OFF(codec_names) }, "codec name", "codec" }, - - { NULL, }, -}; - -static void show_usage(void) -{ - printf("Simple media player\n"); - printf("usage: %s [options] input_file\n", program_name); - printf("\n"); -} - -void show_help_default(const char *opt, const char *arg) -{ - av_log_set_callback(log_callback_help); - show_usage(); - show_help_options(options, "Main options:", 0, OPT_EXPERT, 0); - show_help_options(options, "Advanced options:", OPT_EXPERT, 0, 0); - printf("\n"); - show_help_children(avcodec_get_class(), AV_OPT_FLAG_DECODING_PARAM); - show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM); - printf("\nWhile playing:\n" - "q, ESC quit\n" - "f toggle full screen\n" - "p, SPC pause\n" - "a cycle audio channel\n" - "v cycle video channel\n" - "t cycle subtitle channel\n" - "w show audio waves\n" - "s activate frame-step mode\n" - "left/right seek backward/forward 10 seconds\n" - "down/up seek backward/forward 1 minute\n" - "mouse click seek to percentage in file corresponding to fraction of width\n" - ); -} - -static void opt_input_file(void *optctx, const char *filename) -{ - if (input_filename) { - fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n", - filename, input_filename); - exit(1); - } - if (!strcmp(filename, "-")) - filename = "pipe:"; - input_filename = filename; -} - -/* Called from the main */ -int main(int argc, char **argv) -{ - int flags; - - av_log_set_flags(AV_LOG_SKIP_REPEATED); - parse_loglevel(argc, argv, options); - - /* register all codecs, demux and protocols */ - avcodec_register_all(); -#if CONFIG_AVDEVICE - avdevice_register_all(); -#endif - avfilter_register_all(); - av_register_all(); - avformat_network_init(); - - init_opts(); - - show_banner(); - - parse_options(player, argc, argv, options, opt_input_file); - - if (!input_filename) { - show_usage(); - fprintf(stderr, "An input file must be specified\n"); - fprintf(stderr, "Use -h to get full help or, even better, run 'man %s'\n", program_name); - exit(1); - } - - if (display_disable) { - video_disable = 1; - } - flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER; -#if !defined(__MINGW32__) && !defined(__APPLE__) - flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */ -#endif - if (SDL_Init (flags)) { - fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError()); - exit(1); - } - - if (!display_disable) { - const SDL_VideoInfo *vi = SDL_GetVideoInfo(); - fs_screen_width = vi->current_w; - fs_screen_height = vi->current_h; - } - - SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE); - SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE); - SDL_EventState(SDL_USEREVENT, SDL_IGNORE); - - av_init_packet(&flush_pkt); - flush_pkt.data = (uint8_t *)&flush_pkt; - - if (stream_open(player, input_filename, file_iformat) < 0) { - fprintf(stderr, "Could not setup the player\n"); - stream_close(player); - exit(1); - } - - event_loop(); - - /* never returns */ - - return 0; -} |