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fix support for avis with sample_size > packet size

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Originally committed as revision 7110 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2006-11-16 23:36:54 +00:00
parent f24d50e5fc
commit 2b70eb2bed
1 changed files with 6 additions and 5 deletions
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11
libavformat/avidec.c
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@ -145,10 +145,10 @@ static int read_braindead_odml_indx(AVFormatContext *s, int frame_num){
if(last_pos == pos || pos == base - 8)
avi->non_interleaved= 1;
else
av_add_index_entry(st, pos, ast->cum_len, len, 0, key ? AVINDEX_KEYFRAME : 0);
av_add_index_entry(st, pos, ast->cum_len / FFMAX(1, ast->sample_size), len, 0, key ? AVINDEX_KEYFRAME : 0);
if(ast->sample_size)
ast->cum_len += len / ast->sample_size;
ast->cum_len += len;
else
ast->cum_len ++;
last_pos= pos;
@ -355,6 +355,7 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
get_le32(pb); /* buffer size */
get_le32(pb); /* quality */
ast->sample_size = get_le32(pb); /* sample ssize */
ast->cum_len *= FFMAX(1, ast->sample_size);
// av_log(NULL, AV_LOG_DEBUG, "%d %d %d %d\n", ast->rate, ast->scale, ast->start, ast->sample_size);
switch(tag1) {
@ -378,7 +379,7 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
av_log(s, AV_LOG_ERROR, "unknown stream type %X\n", tag1);
goto fail;
}
ast->frame_offset= ast->cum_len * FFMAX(ast->sample_size, 1);
ast->frame_offset= ast->cum_len;
url_fskip(pb, size - 12 * 4);
break;
case MKTAG('s', 't', 'r', 'f'):
@ -805,9 +806,9 @@ static int avi_read_idx1(AVFormatContext *s, int size)
if(last_pos == pos)
avi->non_interleaved= 1;
else
av_add_index_entry(st, pos, ast->cum_len, len, 0, (flags&AVIIF_INDEX) ? AVINDEX_KEYFRAME : 0);
av_add_index_entry(st, pos, ast->cum_len / FFMAX(1, ast->sample_size), len, 0, (flags&AVIIF_INDEX) ? AVINDEX_KEYFRAME : 0);
if(ast->sample_size)
ast->cum_len += len / ast->sample_size;
ast->cum_len += len;
else
ast->cum_len ++;
last_pos= pos;