Commit 944a1b6b authored by Reimar Döffinger's avatar Reimar Döffinger
Browse files

Add a md5 muxer that allows checking the md5 sums of generated streams without

needing an external MD5 command.

Originally committed as revision 23257 to svn://svn.ffmpeg.org/ffmpeg/trunk
parent d458b7d4
......@@ -106,6 +106,7 @@ OBJS-$(CONFIG_MATROSKA_DEMUXER) += matroskadec.o matroska.o \
OBJS-$(CONFIG_MATROSKA_MUXER) += matroskaenc.o matroska.o \
riff.o isom.o avc.o \
flacenc_header.o
OBJS-$(CONFIG_MD5_MUXER) += md5enc.o
OBJS-$(CONFIG_MJPEG_DEMUXER) += raw.o
OBJS-$(CONFIG_MJPEG_MUXER) += raw.o
OBJS-$(CONFIG_MLP_DEMUXER) += raw.o id3v2.o
......
......@@ -106,6 +106,7 @@ void av_register_all(void)
REGISTER_DEMUXER (IV8, iv8);
REGISTER_DEMUXER (LMLM4, lmlm4);
REGISTER_MUXDEMUX (M4V, m4v);
REGISTER_MUXER (MD5, md5);
REGISTER_MUXDEMUX (MATROSKA, matroska);
REGISTER_MUXER (MATROSKA_AUDIO, matroska_audio);
REGISTER_MUXDEMUX (MJPEG, mjpeg);
......
/*
* MD5 encoder (for codec/format testing)
* Copyright (c) 2009 Reimar Döffinger, based on crcenc (c) 2002 Fabrice Bellard
*
* 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 "libavutil/md5.h"
#include "avformat.h"
#define PRIVSIZE 512
static int write_header(struct AVFormatContext *s)
{
if (PRIVSIZE < av_md5_size) {
av_log(s, AV_LOG_ERROR, "Insuffient size for md5 context\n");
return -1;
}
av_md5_init(s->priv_data);
return 0;
}
static int write_packet(struct AVFormatContext *s, AVPacket *pkt)
{
av_md5_update(s->priv_data, pkt->data, pkt->size);
return 0;
}
static int write_trailer(struct AVFormatContext *s)
{
uint8_t md5[16];
char buf[64] = "MD5=";
int i, offset = strlen(buf);
av_md5_final(s->priv_data, md5);
for (i = 0; i < sizeof(md5); i++) {
snprintf(buf + offset, 3, "%02"PRIx8, md5[i]);
offset += 2;
}
buf[offset] = '\n';
buf[offset+1] = 0;
put_buffer(s->pb, buf, strlen(buf));
put_flush_packet(s->pb);
return 0;
}
AVOutputFormat md5_muxer = {
"md5",
NULL_IF_CONFIG_SMALL("MD5 testing format"),
NULL,
"",
PRIVSIZE,
CODEC_ID_PCM_S16LE,
CODEC_ID_RAWVIDEO,
write_header,
write_packet,
write_trailer,
};
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