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lavc/pthread_frame: always transfer stashed hwaccel state

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Fixes assertion failures after avcodec_flush_buffers(), where
stashed hwaccel state is present, but prev_thread is NULL.

Found-by: Wang Bin <wbsecg1@gmail.com>
This commit is contained in:
Anton Khirnov 2022-09-19 14:50:30 +02:00
parent e301143f96
commit c504fb8692
1 changed files with 6 additions and 6 deletions
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12
libavcodec/pthread_frame.c
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@ -459,14 +459,14 @@ static int submit_packet(PerThreadContext *p, AVCodecContext *user_avctx,
pthread_mutex_unlock(&p->mutex);
return err;
}
/* transfer hwaccel state stashed from previous thread, if any */
av_assert0(!p->avctx->hwaccel);
FFSWAP(const AVHWAccel*, p->avctx->hwaccel, fctx->stash_hwaccel);
FFSWAP(void*, p->avctx->hwaccel_context, fctx->stash_hwaccel_context);
FFSWAP(void*, p->avctx->internal->hwaccel_priv_data, fctx->stash_hwaccel_priv);
}
/* transfer the stashed hwaccel state, if any */
av_assert0(!p->avctx->hwaccel);
FFSWAP(const AVHWAccel*, p->avctx->hwaccel, fctx->stash_hwaccel);
FFSWAP(void*, p->avctx->hwaccel_context, fctx->stash_hwaccel_context);
FFSWAP(void*, p->avctx->internal->hwaccel_priv_data, fctx->stash_hwaccel_priv);
av_packet_unref(p->avpkt);
ret = av_packet_ref(p->avpkt, avpkt);
if (ret < 0) {