[FFmpeg-devel] [PATCH] avcodec/libvpxenc: return quantizer parameter for an encoded frame

Danil Chapovalov danilchap at google.com
Tue Apr 5 17:20:46 EEST 2022


---
 libavcodec/libvpxenc.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/libavcodec/libvpxenc.c b/libavcodec/libvpxenc.c
index dff1d06b0e..b1d56d99b7 100644
--- a/libavcodec/libvpxenc.c
+++ b/libavcodec/libvpxenc.c
@@ -1250,6 +1250,8 @@ static int storeframe(AVCodecContext *avctx, struct FrameListData *cx_frame,
     int ret = ff_get_encode_buffer(avctx, pkt, cx_frame->sz, 0);
     uint8_t *side_data;
     int pict_type;
+    int quality;
+    VPxContext *ctx = avctx->priv_data;
 
     if (ret < 0)
         return ret;
@@ -1264,7 +1266,10 @@ static int storeframe(AVCodecContext *avctx, struct FrameListData *cx_frame,
         pict_type = AV_PICTURE_TYPE_P;
     }
 
-    ff_side_data_set_encoder_stats(pkt, 0, cx_frame->sse + 1,
+    ret = vpx_codec_control(&ctx->encoder, VP8E_GET_LAST_QUANTIZER_64, &quality);
+    if (ret != VPX_CODEC_OK)
+        quality = 0;
+    ff_side_data_set_encoder_stats(pkt, quality * FF_QP2LAMBDA, cx_frame->sse + 1,
                                    cx_frame->have_sse ? 3 : 0, pict_type);
 
     if (cx_frame->have_sse) {
-- 
2.35.1.1094.g7c7d902a7c-goog



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