[FFmpeg-devel] [PATCH] avcodec/libvpxenc: enable dynamic max quantizer parameter reconfiguration

From: Danil Chapovalov <danilchap-at-google.com@ffmpeg.org>
To: ffmpeg-devel@ffmpeg.org
Cc: Danil Chapovalov <danilchap@google.com>
Subject: [FFmpeg-devel] [PATCH] avcodec/libvpxenc: enable dynamic max quantizer parameter reconfiguration
Date: Thu, 17 Mar 2022 20:07:34 +0100
Message-ID: <20220317190734.3871376-1-danilchap@google.com> (raw)
In-Reply-To: <20220316120759.2292546-1-danilchap@google.com>

---
 libavcodec/libvpxenc.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/libavcodec/libvpxenc.c b/libavcodec/libvpxenc.c
index 8f94ba15dc..4735e57620 100644
--- a/libavcodec/libvpxenc.c
+++ b/libavcodec/libvpxenc.c
@@ -44,6 +44,7 @@
 #include "libavutil/mathematics.h"
 #include "libavutil/opt.h"
 #include "libavutil/pixdesc.h"
+#include "libavutil/video_enc_params.h"
 
 /**
  * Portion of struct vpx_codec_cx_pkt from vpx_encoder.h.
@@ -1698,6 +1699,14 @@ static int vpx_encode(AVCodecContext *avctx, AVPacket *pkt,
             }
         }
 
+        sd = av_frame_get_side_data(frame, AV_FRAME_DATA_VIDEO_ENC_PARAMS);
+        if (sd) {
+            const AVVideoEncParams* enc_params = sd->data;
+            struct vpx_codec_enc_cfg cfg = *enccfg;
+            cfg.rc_max_quantizer = enc_params->qp;
+            vpx_codec_enc_config_set(&ctx->encoder, &cfg);
+        }
+
         if (ctx->hdr10_plus_fifo) {
             AVFrameSideData *hdr10_plus_metadata;
             // Add HDR10+ metadata to queue.
-- 
2.35.1.894.gb6a874cedc-goog

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