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* [FFmpeg-devel] [PATCH] avcodec/libsvtav1: add support for setting chroma sample location
@ 2022-04-25 21:02 Jan Ekström
  2022-04-25 21:15 ` James Almer
  2022-04-25 21:59 ` [FFmpeg-devel] [PATCH v2] " Jan Ekström
  0 siblings, 2 replies; 5+ messages in thread
From: Jan Ekström @ 2022-04-25 21:02 UTC (permalink / raw)
  To: ffmpeg-devel

Support for configuring this was added with version 1.0.0.
---
 libavcodec/libsvtav1.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/libavcodec/libsvtav1.c b/libavcodec/libsvtav1.c
index 2e3d96ce37..a670dab822 100644
--- a/libavcodec/libsvtav1.c
+++ b/libavcodec/libsvtav1.c
@@ -205,6 +205,28 @@ static int config_enc_params(EbSvtAv1EncConfiguration *param,
     else
         param->color_range = !!(desc->flags & AV_PIX_FMT_FLAG_RGB);
 
+#if SVT_AV1_CHECK_VERSION(1, 0, 0)
+    if (avctx->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED) {
+        switch (avctx->chroma_sample_location) {
+        case AVCHROMA_LOC_LEFT:
+            param->chroma_sample_position = EB_CSP_VERTICAL;
+            break;
+        case AVCHROMA_LOC_TOPLEFT:
+            param->chroma_sample_position = EB_CSP_COLOCATED;
+            break;
+        default:
+            av_log(avctx, AV_LOG_INFO,
+                   "Specified chroma sample location %s (%d) is unsupported "
+                   "on the AV1 bit stream level. Usage of a container that "
+                   "allows passing this information - such as Matroska - "
+                   "is recommended.\n",
+                   av_chroma_location_name(avctx->chroma_sample_location),
+                   avctx->chroma_sample_location);
+            break;
+        }
+    }
+#endif
+
     if (avctx->profile != FF_PROFILE_UNKNOWN)
         param->profile = avctx->profile;
 
-- 
2.36.0

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^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2022-04-26  6:20 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-04-25 21:02 [FFmpeg-devel] [PATCH] avcodec/libsvtav1: add support for setting chroma sample location Jan Ekström
2022-04-25 21:15 ` James Almer
2022-04-25 21:59 ` [FFmpeg-devel] [PATCH v2] " Jan Ekström
2022-04-25 23:44   ` James Almer
2022-04-26  6:19     ` Jan Ekström

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