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ismindex: use tfhd default duration if no sample duration 

Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Mika Raento 2014-10-16 08:55:17 +03:00 committed by Martin Storsjö
parent 460b509a34
commit 979932378a
1 changed files with 19 additions and 4 deletions
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23
tools/ismindex.c
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@ -225,7 +225,8 @@ fail:
return ret;
}
static int64_t read_trun_duration(AVIOContext *in, int64_t end)
static int64_t read_trun_duration(AVIOContext *in, int default_duration,
int64_t end)
{
int64_t ret = 0;
int64_t pos;
@ -233,7 +234,7 @@ static int64_t read_trun_duration(AVIOContext *in, int64_t end)
int entries;
avio_r8(in); /* version */
flags = avio_rb24(in);
if (!(flags & MOV_TRUN_SAMPLE_DURATION)) {
if (default_duration <= 0 && !(flags & MOV_TRUN_SAMPLE_DURATION)) {
fprintf(stderr, "No sample duration in trun flags\n");
return -1;
}
@ -244,7 +245,7 @@ static int64_t read_trun_duration(AVIOContext *in, int64_t end)
pos = avio_tell(in);
for (i = 0; i < entries && pos < end; i++) {
int sample_duration = 0;
int sample_duration = default_duration;
if (flags & MOV_TRUN_SAMPLE_DURATION) sample_duration = avio_rb32(in);
if (flags & MOV_TRUN_SAMPLE_SIZE) avio_rb32(in);
if (flags & MOV_TRUN_SAMPLE_FLAGS) avio_rb32(in);
@ -265,6 +266,7 @@ static int64_t read_moof_duration(AVIOContext *in, int64_t offset)
int64_t ret = -1;
int32_t moof_size, size, tag;
int64_t pos = 0;
int default_duration = 0;
avio_seek(in, offset, SEEK_SET);
moof_size = avio_rb32(in);
@ -282,8 +284,21 @@ static int64_t read_moof_duration(AVIOContext *in, int64_t offset)
pos = avio_tell(in);
size = avio_rb32(in);
tag = avio_rb32(in);
if (tag == MKBETAG('t', 'f', 'h', 'd')) {
int flags = 0;
avio_r8(in); /* version */
flags = avio_rb24(in);
avio_rb32(in); /* track_id */
if (flags & MOV_TFHD_BASE_DATA_OFFSET)
avio_rb64(in);
if (flags & MOV_TFHD_STSD_ID)
avio_rb32(in);
if (flags & MOV_TFHD_DEFAULT_DURATION)
default_duration = avio_rb32(in);
}
if (tag == MKBETAG('t', 'r', 'u', 'n')) {
return read_trun_duration(in, pos + size);
return read_trun_duration(in, default_duration,
pos + size);
}
avio_seek(in, pos + size, SEEK_SET);
}