> +static void videotoolbox_default_free(AVCodecContext *avctx)
> +{
> + AVVideotoolboxContext *videotoolbox = avctx->hwaccel_context;
> +
> + if (videotoolbox) {
> + if (videotoolbox->cm_fmt_desc)
> + CFRelease(videotoolbox->cm_fmt_desc);
> +
> + if (videotoolbox->session)
Better add VTDecompressionSessionWaitForAsynchronousFrames() here,
in case it is removed from videotoolbox_session_decode_frame() in
future by chance.
Callback could be called even after VTDecompressionSessionInvalidate()
when I try to work with flag kVTDecodeFrame_EnableAsynchronousDecompression
and without VTDecompressionSessionWaitForAsynchronousFrames() per sample
in my own player.
> + VTDecompressionSessionInvalidate(videotoolbox->session);
> + }
> +}
> +
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