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lavc/mpegvideo_enc: allow low_delay for non MPEG2 codecs depending on strict_std_compliance

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Forcing low_delay can be useful, even if not officially supported.
This commit is contained in:
Stefano Sabatini 2017-05-23 12:22:41 +02:00
parent c1503cd95e
commit dc70ea8c19
1 changed files with 4 additions and 2 deletions
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6
libavcodec/mpegvideo_enc.c
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@ -671,9 +671,11 @@ FF_ENABLE_DEPRECATION_WARNINGS
}
if (s->avctx->flags & AV_CODEC_FLAG_LOW_DELAY) {
if (s->codec_id != AV_CODEC_ID_MPEG2VIDEO) {
if (s->codec_id != AV_CODEC_ID_MPEG2VIDEO &&
s->strict_std_compliance >= FF_COMPLIANCE_NORMAL) {
av_log(avctx, AV_LOG_ERROR,
"low delay forcing is only available for mpeg2\n");
"low delay forcing is only available for mpeg2, "
"set strict_std_compliance to 'unofficial' or lower in order to allow it\n");
return -1;
}
if (s->max_b_frames != 0) {