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avcodec/decode: Don't needlessly copy side-data for subtitles 

AVCodecInternal.last_pkt_props is not used when decoding subtitles;
ergo it makes no sense to set it at all.

Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
This commit is contained in:
Andreas Rheinhardt 2021-03-04 13:49:20 +01:00
parent e12923f683
commit b5a2481122
1 changed files with 0 additions and 5 deletions
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5
libavcodec/decode.c
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@ -1050,10 +1050,6 @@ int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
if (ret < 0)
return ret;
ret = extract_packet_props(avctx->internal, pkt);
if (ret < 0)
goto cleanup;
if (avctx->pkt_timebase.num && avpkt->pts != AV_NOPTS_VALUE)
sub->pts = av_rescale_q(avpkt->pts,
avctx->pkt_timebase, AV_TIME_BASE_Q);
@ -1099,7 +1095,6 @@ int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
if (*got_sub_ptr)
avctx->frame_number++;
cleanup:
if (pkt == avci->buffer_pkt) // did we recode?
av_packet_unref(avci->buffer_pkt);
}