diff options
| -rw-r--r-- | libavformat/Makefile | 1 | ||||
| -rw-r--r-- | libavformat/allformats.c | 1 | ||||
| -rw-r--r-- | libavformat/md5proto.c | 92 |
3 files changed, 94 insertions, 0 deletions
diff --git a/libavformat/Makefile b/libavformat/Makefile index f8865ac9d9..b140fe8688 100644 --- a/libavformat/Makefile +++ b/libavformat/Makefile @@ -284,6 +284,7 @@ OBJS-$(CONFIG_FILE_PROTOCOL) += file.o OBJS-$(CONFIG_GOPHER_PROTOCOL) += gopher.o OBJS-$(CONFIG_HTTP_PROTOCOL) += http.o httpauth.o OBJS-$(CONFIG_MMST_PROTOCOL) += mmst.o asf.o +OBJS-$(CONFIG_MD5_PROTOCOL) += md5proto.o OBJS-$(CONFIG_PIPE_PROTOCOL) += file.o # external or internal rtmp diff --git a/libavformat/allformats.c b/libavformat/allformats.c index 502c36c244..6e66169495 100644 --- a/libavformat/allformats.c +++ b/libavformat/allformats.c @@ -223,6 +223,7 @@ void av_register_all(void) REGISTER_PROTOCOL (GOPHER, gopher); REGISTER_PROTOCOL (HTTP, http); REGISTER_PROTOCOL (MMST, mmst); + REGISTER_PROTOCOL (MD5, md5); REGISTER_PROTOCOL (PIPE, pipe); REGISTER_PROTOCOL (RTMP, rtmp); #if CONFIG_LIBRTMP diff --git a/libavformat/md5proto.c b/libavformat/md5proto.c new file mode 100644 index 0000000000..63e9fe4176 --- /dev/null +++ b/libavformat/md5proto.c @@ -0,0 +1,92 @@ +/* + * Copyright (c) 2010 Mans Rullgard + * + * This file is part of FFmpeg. + * + * FFmpeg 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. + * + * FFmpeg 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 FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <stdio.h> +#include "libavutil/avstring.h" +#include "libavutil/md5.h" +#include "libavutil/mem.h" +#include "libavutil/error.h" +#include "avformat.h" +#include "avio.h" + +#define PRIV_SIZE 128 + +static int md5_open(URLContext *h, const char *filename, int flags) +{ + if (PRIV_SIZE < av_md5_size) { + av_log(NULL, AV_LOG_ERROR, "Insuffient size for MD5 context\n"); + return -1; + } + + if (flags != URL_WRONLY) + return AVERROR(EINVAL); + + av_md5_init(h->priv_data); + + return 0; +} + +static int md5_write(URLContext *h, const unsigned char *buf, int size) +{ + av_md5_update(h->priv_data, buf, size); + return size; +} + +static int md5_close(URLContext *h) +{ + const char *filename = h->filename; + uint8_t md5[16], buf[64]; + URLContext *out; + int i, err = 0; + + av_md5_final(h->priv_data, md5); + for (i = 0; i < sizeof(md5); i++) + snprintf(buf + i*2, 3, "%02x", md5[i]); + buf[i*2] = '\n'; + + av_strstart(filename, "md5:", &filename); + + if (*filename) { + err = url_open(&out, filename, URL_WRONLY); + if (err) + return err; + err = url_write(out, buf, i*2+1); + url_close(out); + } else { + if (fwrite(buf, 1, i*2+1, stdout) < i*2+1) + err = AVERROR(errno); + } + + return err; +} + +static int md5_get_handle(URLContext *h) +{ + return (intptr_t)h->priv_data; +} + +URLProtocol md5_protocol = { + .name = "md5", + .url_open = md5_open, + .url_write = md5_write, + .url_close = md5_close, + .url_get_file_handle = md5_get_handle, + .priv_data_size = PRIV_SIZE, +}; |