* MD5 encoder (for codec/format testing)
* Copyright (c) 2009 Reimar Döffinger, based on crcenc (c) 2002 Fabrice Bellard
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * 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.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * 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 FFmpeg; if not, write to the Free Software
+ * License along with Libav; 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"
+#include "internal.h"
-#define PRIVSIZE 512
+struct MD5Context {
+ struct AVMD5 *md5;
+};
static void md5_finish(struct AVFormatContext *s, char *buf)
{
+ struct MD5Context *c = s->priv_data;
uint8_t md5[16];
int i, offset = strlen(buf);
- av_md5_final(s->priv_data, md5);
+ av_md5_final(c->md5, 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);
+ avio_write(s->pb, buf, strlen(buf));
+ avio_flush(s->pb);
}
#if CONFIG_MD5_MUXER
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);
+ struct MD5Context *c = s->priv_data;
+ c->md5 = av_md5_alloc();
+ if (!c->md5)
+ return AVERROR(ENOMEM);
+ av_md5_init(c->md5);
return 0;
}
static int write_packet(struct AVFormatContext *s, AVPacket *pkt)
{
- av_md5_update(s->priv_data, pkt->data, pkt->size);
+ struct MD5Context *c = s->priv_data;
+ av_md5_update(c->md5, pkt->data, pkt->size);
return 0;
}
static int write_trailer(struct AVFormatContext *s)
{
+ struct MD5Context *c = s->priv_data;
char buf[64] = "MD5=";
md5_finish(s, buf);
+
+ av_freep(&c->md5);
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,
+AVOutputFormat ff_md5_muxer = {
+ .name = "md5",
+ .long_name = NULL_IF_CONFIG_SMALL("MD5 testing"),
+ .extensions = "",
+ .priv_data_size = sizeof(struct MD5Context),
+ .audio_codec = AV_CODEC_ID_PCM_S16LE,
+ .video_codec = AV_CODEC_ID_RAWVIDEO,
+ .write_header = write_header,
+ .write_packet = write_packet,
+ .write_trailer = write_trailer,
+ .flags = AVFMT_NOTIMESTAMPS,
};
#endif
#if CONFIG_FRAMEMD5_MUXER
+static int framemd5_write_header(struct AVFormatContext *s)
+{
+ struct MD5Context *c = s->priv_data;
+ c->md5 = av_md5_alloc();
+ if (!c->md5)
+ return AVERROR(ENOMEM);
+ return ff_framehash_write_header(s);
+}
+
static int framemd5_write_packet(struct AVFormatContext *s, AVPacket *pkt)
{
+ struct MD5Context *c = s->priv_data;
char buf[256];
- 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);
- av_md5_update(s->priv_data, pkt->data, pkt->size);
+ av_md5_init(c->md5);
+ av_md5_update(c->md5, pkt->data, pkt->size);
- snprintf(buf, sizeof(buf) - 64, "%d, %"PRId64", %d, ", pkt->stream_index, pkt->dts, pkt->size);
+ snprintf(buf, sizeof(buf) - 64, "%d, %10"PRId64", %10"PRId64", %8d, %8d, ",
+ pkt->stream_index, pkt->dts, pkt->pts, pkt->duration, pkt->size);
md5_finish(s, buf);
return 0;
}
-AVOutputFormat framemd5_muxer = {
- "framemd5",
- NULL_IF_CONFIG_SMALL("Per-frame MD5 testing format"),
- NULL,
- "",
- PRIVSIZE,
- CODEC_ID_PCM_S16LE,
- CODEC_ID_RAWVIDEO,
- NULL,
- framemd5_write_packet,
- NULL,
+static int framemd5_write_trailer(struct AVFormatContext *s)
+{
+ struct MD5Context *c = s->priv_data;
+ av_freep(&c->md5);
+ return 0;
+}
+
+AVOutputFormat ff_framemd5_muxer = {
+ .name = "framemd5",
+ .long_name = NULL_IF_CONFIG_SMALL("Per-frame MD5 testing"),
+ .extensions = "",
+ .priv_data_size = sizeof(struct MD5Context),
+ .audio_codec = AV_CODEC_ID_PCM_S16LE,
+ .video_codec = AV_CODEC_ID_RAWVIDEO,
+ .write_header = framemd5_write_header,
+ .write_packet = framemd5_write_packet,
+ .write_trailer = framemd5_write_trailer,
+ .flags = AVFMT_VARIABLE_FPS | AVFMT_TS_NONSTRICT |
+ AVFMT_TS_NEGATIVE,
};
#endif