On Tue, Feb 28, 2023 at 4:02 AM Anton Khirnov wrote:
>
> It is not used, except to check whether the packet is valid before
> writing HDR metadata to the packet in storeframe(). However, that check
> serves no purpose, as the encoded packet is already treated as valid
> higher up in this function.
lgtm. I agree, since the HDR path is VP9 only, there's no possibility
of having a separate alt-ref packet. The libaom wrapper could probably
use a similar update.
> ---
> libavcodec/libvpxenc.c | 9 +
> 1 file changed, 1 insertion(+), 8 deletions(-)
>
> diff --git a/libavcodec/libvpxenc.c b/libavcodec/libvpxenc.c
> index 339d4d8146..eaa4ad8f25 100644
> --- a/libavcodec/libvpxenc.c
> +++ b/libavcodec/libvpxenc.c
> @@ -63,7 +63,6 @@ struct FrameListData {
> uint32_t flags; /**< flags for this frame */
> uint64_t sse[4];
> int have_sse;/**< true if we have pending sse[] */
> -uint64_t frame_number;
> struct FrameListData *next;
> };
>
> @@ -84,7 +83,6 @@ typedef struct VPxEncoderContext {
> int deadline; //i.e., RT/GOOD/BEST
> uint64_t sse[4];
> int have_sse; /**< true if we have pending sse[] */
> -uint64_t frame_number;
> struct FrameListData *coded_frame_list;
> struct FrameListData *alpha_coded_frame_list;
>
> @@ -1220,9 +1218,8 @@ static inline void cx_pktcpy(struct FrameListData *dst,
> dst->sz = src->data.frame.sz;
> dst->buf = src->data.frame.buf;
> dst->have_sse = 0;
> -/* For alt-ref frame, don't store PSNR or increment frame_number */
> +/* For alt-ref frame, don't store PSNR */
> if (!(dst->flags & VPX_FRAME_IS_INVISIBLE)) {
> -dst->frame_number = ++ctx->frame_number;
> dst->have_sse = ctx->have_sse;
> if (ctx->have_sse) {
> /* associate last-seen SSE to the frame. */
> @@ -1232,8 +1229,6 @@ static inline void cx_pktcpy(struct FrameListData *dst,
> memcpy(dst->sse, ctx->sse, sizeof(dst->sse));
> ctx->have_sse = 0;
> }
> -} else {
> -dst->frame_number = -1; /* sanity marker */
> }
> }
>
> @@ -1289,13 +1284,11 @@ static int storeframe(AVCodecContext *avctx, struct
> FrameListData *cx_frame,
> AV_WB64(side_data, 1);
> memcpy(side_data + 8, alpha_cx_frame->buf, alpha_cx_frame->sz);
> }
> -if (cx_frame->frame_number != -1) {
> if (ctx->hdr10_plus_fifo) {
> int err = copy_hdr10_plus_to_pkt(ctx->hdr10_plus_fifo, pkt);
> if (err < 0)
> return err;
> }
> -}
>
> return pkt->size;
> }
> --
> 2.39.1
>
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