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avformat/avc: refactor ff_isom_write_avcc

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This lets us remove one indentation level.

Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2017-11-24 19:45:54 -03:00
parent ae7df68edd
commit 9cd361c5c1
1 changed files with 11 additions and 9 deletions
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20
libavformat/avc.c
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@ -105,17 +105,22 @@ int ff_avc_parse_nal_units_buf(const uint8_t *buf_in, uint8_t **buf, int *size)
int ff_isom_write_avcc(AVIOContext *pb, const uint8_t *data, int len)
{
uint8_t *buf = NULL, *end, *start = NULL;
uint8_t *sps = NULL, *pps = NULL;
uint32_t sps_size = 0, pps_size = 0;
int ret;
if (len <= 6)
return AVERROR_INVALIDDATA;
/* check for H.264 start code */
if (AV_RB32(data) == 0x00000001 ||
AV_RB24(data) == 0x000001) {
uint8_t *buf=NULL, *end, *start;
uint32_t sps_size=0, pps_size=0;
uint8_t *sps=0, *pps=0;
if (AV_RB32(data) != 0x00000001 &&
AV_RB24(data) != 0x000001) {
avio_write(pb, data, len);
return 0;
}
int ret = ff_avc_parse_nal_units_buf(data, &buf, &len);
ret = ff_avc_parse_nal_units_buf(data, &buf, &len);
if (ret < 0)
return ret;
start = buf;
@ -156,9 +161,6 @@ int ff_isom_write_avcc(AVIOContext *pb, const uint8_t *data, int len)
avio_wb16(pb, pps_size);
avio_write(pb, pps, pps_size);
av_free(start);
} else {
avio_write(pb, data, len);
}
return 0;
}