[FFmpeg-devel] [PATCH v2 3/4] avformat/rtpdec_rfc4175: add support for colorimetry

lance.lmwang at gmail.com lance.lmwang at gmail.com
Mon Oct 11 19:23:11 EEST 2021


From: Limin Wang <lance.lmwang at gmail.com>

Signed-off-by: Limin Wang <lance.lmwang at gmail.com>
---
 libavformat/rtpdec_rfc4175.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/libavformat/rtpdec_rfc4175.c b/libavformat/rtpdec_rfc4175.c
index d45530e..93607d7 100644
--- a/libavformat/rtpdec_rfc4175.c
+++ b/libavformat/rtpdec_rfc4175.c
@@ -107,6 +107,17 @@ static int rfc4175_parse_fmtp(AVFormatContext *s, AVStream *stream,
             stream->codecpar->color_trc = AVCOL_TRC_SMPTEST428_1;
         else
             stream->codecpar->color_trc = AVCOL_TRC_UNSPECIFIED;
+    } else if (!strncmp(attr, "colorimetry", 11)) {
+        if (!strncmp(value, "BT601", 5)) {
+            stream->codecpar->color_primaries = AVCOL_PRI_BT470BG;
+            stream->codecpar->color_space     = AVCOL_SPC_BT470BG;
+        } else if (!strncmp(value, "BT709", 5)) {
+            stream->codecpar->color_primaries = AVCOL_PRI_BT709;
+            stream->codecpar->color_space     = AVCOL_SPC_BT709;
+        } else if (!strncmp(value, "BT2020", 6)) {
+            stream->codecpar->color_primaries = AVCOL_PRI_BT2020;
+            stream->codecpar->color_space     = AVCOL_SPC_BT2020_NCL;
+        }
     }
 
     return 0;
-- 
1.8.3.1



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