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avcodec/wrapped_avframe: Don't presume AVPacket to be writable

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It need not be writable; in fact, it is often not writable even if
the packet sent to the decoder was writable, because the generic code
calls av_packet_ref() on it. It is never writable if a user
drains the decoder after every packet, because in this case the decode
callback is called from avcodec_send_packet().

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2022-07-18 19:26:58 +02:00
parent 425b309fa4
commit d72a671c60
1 changed files with 3 additions and 1 deletions
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4
libavcodec/wrapped_avframe.c
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@ -92,7 +92,9 @@ static int wrapped_avframe_decode(AVCodecContext *avctx, AVFrame *out,
in = (AVFrame*)pkt->data;
av_frame_move_ref(out, in);
err = av_frame_ref(out, in);
if (err < 0)
return err;
err = ff_decode_frame_props(avctx, out);
if (err < 0)