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avcodec/nvenc: fix potential NULL pointer dereference

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Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>
This commit is contained in:
Zhao Zhili 2023-02-28 19:12:17 +01:00 committed by Timo Rothenpieler
parent 67fd1b79e7
commit 21101d9eb1
1 changed files with 7 additions and 2 deletions
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9
libavcodec/nvenc.c
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@ -178,6 +178,8 @@ static void reorder_queue_flush(AVFifo *queue)
{
FrameData fd;
av_assert0(queue);
while (av_fifo_read(queue, &fd, 1) >= 0)
av_buffer_unref(&fd.frame_opaque_ref);
}
@ -1853,8 +1855,11 @@ av_cold int ff_nvenc_encode_close(AVCodecContext *avctx)
p_nvenc->nvEncEncodePicture(ctx->nvencoder, &params);
}
reorder_queue_flush(ctx->reorder_queue);
av_fifo_freep2(&ctx->reorder_queue);
if (ctx->reorder_queue) {
reorder_queue_flush(ctx->reorder_queue);
av_fifo_freep2(&ctx->reorder_queue);
}
av_fifo_freep2(&ctx->output_surface_ready_queue);
av_fifo_freep2(&ctx->output_surface_queue);
av_fifo_freep2(&ctx->unused_surface_queue);