1 files changed, 53 insertions, 0 deletions
diff --git a/libavcodec/encode.c b/libavcodec/encode.c
index 310fe20777..7cf13bf6d6 100644
--- a/libavcodec/encode.c
+++ b/libavcodec/encode.c
@@ -308,6 +308,53 @@ static int encode_receive_packet_internal(AVCodecContext *avctx, AVPacket *avpkt
     return ret;
 }
 
+#if CONFIG_LCMS2
+static int encode_generate_icc_profile(AVCodecContext *avctx, AVFrame *frame)
+{
+    enum AVColorTransferCharacteristic trc = frame->color_trc;
+    enum AVColorPrimaries prim = frame->color_primaries;
+    const FFCodec *const codec = ffcodec(avctx->codec);
+    AVCodecInternal *avci = avctx->internal;
+    cmsHPROFILE profile;
+    int ret;
+
+    /* don't generate ICC profiles if disabled or unsupported */
+    if (!(avctx->flags2 & AV_CODEC_FLAG2_ICC_PROFILES))
+        return 0;
+    if (!(codec->caps_internal & FF_CODEC_CAP_ICC_PROFILES))
+        return 0;
+
+    if (trc == AVCOL_TRC_UNSPECIFIED)
+        trc = avctx->color_trc;
+    if (prim == AVCOL_PRI_UNSPECIFIED)
+        prim = avctx->color_primaries;
+    if (trc == AVCOL_TRC_UNSPECIFIED || prim == AVCOL_PRI_UNSPECIFIED)
+        return 0; /* can't generate ICC profile with missing csp tags */
+
+    if (av_frame_get_side_data(frame, AV_FRAME_DATA_ICC_PROFILE))
+        return 0; /* don't overwrite existing ICC profile */
+
+    if (!avci->icc.avctx) {
+        ret = ff_icc_context_init(&avci->icc, avctx);
+        if (ret < 0)
+            return ret;
+    }
+
+    ret = ff_icc_profile_generate(&avci->icc, prim, trc, &profile);
+    if (ret < 0)
+        return ret;
+
+    ret = ff_icc_profile_attach(&avci->icc, profile, frame);
+    cmsCloseProfile(profile);
+    return ret;
+}
+#else /* !CONFIG_LCMS2 */
+static int encode_generate_icc_profile(av_unused AVCodecContext *c, av_unused AVFrame *f)
+{
+    return 0;
+}
+#endif
+
 static int encode_send_frame_internal(AVCodecContext *avctx, const AVFrame *src)
 {
     AVCodecInternal *avci = avctx->internal;
@@ -360,6 +407,12 @@ FF_DISABLE_DEPRECATION_WARNINGS
 FF_ENABLE_DEPRECATION_WARNINGS
 #endif
 
+    if (avctx->codec->type == AVMEDIA_TYPE_VIDEO) {
+        ret = encode_generate_icc_profile(avctx, dst);
+        if (ret < 0)
+            return ret;
+    }
+
     return 0;
 }