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avcodec/h264_metadata_bsf: remove AUDs at any position 

Some files, likely due to faulty packetization or muxing, can have AUDs
at other positions besides the head unit of a packet. Remove these too.
This commit is contained in:
Gyan Doshi 2023-01-29 16:52:04 +05:30
parent d09254a658
commit 159b028df5
1 changed files with 7 additions and 6 deletions
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13
libavcodec/h264_metadata_bsf.c
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@ -469,12 +469,13 @@ static int h264_metadata_update_fragment(AVBSFContext *bsf, AVPacket *pkt,
H264MetadataContext *ctx = bsf->priv_data;
int err, i, has_sps, seek_point;
// If an AUD is present, it must be the first NAL unit.
if (au->nb_units && au->units[0].type == H264_NAL_AUD) {
if (ctx->aud == BSF_ELEMENT_REMOVE)
ff_cbs_delete_unit(au, 0);
} else {
if (pkt && ctx->aud == BSF_ELEMENT_INSERT) {
if (ctx->aud == BSF_ELEMENT_REMOVE) {
for (i = au->nb_units - 1; i >= 0; i--) {
if (au->units[i].type == H264_NAL_AUD)
ff_cbs_delete_unit(au, i);
}
} else if (ctx->aud == BSF_ELEMENT_INSERT) {
if (pkt) {
err = h264_metadata_insert_aud(bsf, au);
if (err < 0)
return err;