Jul 7, 2020, 21:25 by yongle.lin...@gmail.com:
> add block type field to AVVideoBlockParams so we could either export or
> visualize it later.
> ---
> libavutil/video_enc_params.h | 15 +++++++++++++++
> 1 file changed, 15 insertions(+)
>
> diff --git a/libavutil/video_enc_params.h b/libavutil/video_enc_params.h
> index 43fa443154..bff5354a8d 100644
> --- a/libavutil/video_enc_params.h
> +++ b/libavutil/video_enc_params.h
> @@ -126,6 +126,21 @@ typedef struct AVVideoBlockParams {
> * corresponding per-frame value.
> */
> int32_t delta_qp;
> +
> + /**
> + * Type of block
> + * Each bit field indicates a type flag:
> + * - (1 << 0) Intra prediction flag for the block
> + * 1 indicates that prediction type is intra, otherwise inter
> + * - (1 << 1) Skip flag for the block
> + * 1 indicates that a block has no residual coefficients, 0 otherwise
> + */
> + uint64_t type;
>
You also need to define the flags by an enum or a define.
enum AVVideoBlockFlags {
AV_VIDEO_ENC_BLOCK_INTRA = 1ULL << 0, /* Indicates block uses
intraprediction */
AV_VIDEO_ENC_BLOCK_SKIP = 1ULL << 1, /* Indicates block is not coded
(skipped) */
};
Using 1ULL forces the enum to be 64-bit unsigned, so you can specify it in the
struct like:
enum AVVideoBlockFlags flags;
Rather than just a uint64_t.
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