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Export mov/mp4 major and compatible brands as metadata. 

Patch by haim alon, haim dot alter at gmail dot com

Originally committed as revision 20032 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
haim alon 2009-09-26 20:51:38 +00:00 committed by Baptiste Coudurier
parent f331cec47d
commit 7b5252ce3e
1 changed files with 24 additions and 4 deletions
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28
libavformat/mov.c
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@ -490,15 +490,35 @@ static int mov_read_mdat(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
return 0; /* now go for moov */
}
/* read major brand, minor version and compatible brands and store them as metadata */
static int mov_read_ftyp(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
{
uint32_t type = get_le32(pb);
uint32_t minor_ver;
int comp_brand_size;
char minor_ver_str[11]; /* 32 bit integer -> 10 digits + null */
char* comp_brands_str;
uint8_t type[5] = {0};
if (type != MKTAG('q','t',' ',' '))
get_buffer(pb, type, 4);
if (strcmp(type, "qt, "))
c->isom = 1;
av_log(c->fc, AV_LOG_DEBUG, "ISO: File Type Major Brand: %.4s\n",(char *)&type);
get_be32(pb); /* minor version */
url_fskip(pb, atom.size - 8);
av_metadata_set(&c->fc->metadata, "major_brand", type);
minor_ver = get_be32(pb); /* minor version */
snprintf(minor_ver_str, sizeof(minor_ver_str), "%d", minor_ver);
av_metadata_set(&c->fc->metadata, "minor_version", minor_ver_str);
comp_brand_size = atom.size - 8;
if (comp_brand_size < 0)
return -1;
comp_brands_str = av_malloc(comp_brand_size + 1); /* Add null terminator */
if (!comp_brands_str)
return AVERROR(ENOMEM);
get_buffer(pb, comp_brands_str, comp_brand_size);
comp_brands_str[comp_brand_size] = 0;
av_metadata_set(&c->fc->metadata, "compatible_brands", comp_brands_str);
av_freep(&comp_brands_str);
return 0;
}