avcodec/cbs_h264: add support for Alternative Transfer Characteristics SEI message

Reviewed-by: Mark Thompson <sw@jkqxz.net>
Signed-off-by: James Almer <jamrial@gmail.com>

1 files changed, 17 insertions, 0 deletions

diff --git a/libavcodec/cbs_h264_syntax_template.c b/libavcodec/cbs_h264_syntax_template.c
index 95fc6d7194..cdacd79fc4 100644
--- a/libavcodec/cbs_h264_syntax_template.c
+++ b/libavcodec/cbs_h264_syntax_template.c
@@ -815,6 +815,19 @@ static int FUNC(sei_mastering_display_colour_volume)(CodedBitstreamContext *ctx,
     return 0;
 }
 
+static int FUNC(sei_alternative_transfer_characteristics)(CodedBitstreamContext *ctx,
+                                                          RWContext *rw,
+                                                          H264RawSEIAlternativeTransferCharacteristics *current)
+{
+    int err;
+
+    HEADER("Alternative Transfer Characteristics");
+
+    ub(8, preferred_transfer_characteristics);
+
+    return 0;
+}
+
 static int FUNC(sei_payload)(CodedBitstreamContext *ctx, RWContext *rw,
                              H264RawSEIPayload *current)
 {
@@ -866,6 +879,10 @@ static int FUNC(sei_payload)(CodedBitstreamContext *ctx, RWContext *rw,
         CHECK(FUNC(sei_mastering_display_colour_volume)
               (ctx, rw, &current->payload.mastering_display_colour_volume));
         break;
+    case H264_SEI_TYPE_ALTERNATIVE_TRANSFER:
+        CHECK(FUNC(sei_alternative_transfer_characteristics)
+              (ctx, rw, &current->payload.alternative_transfer_characteristics));
+        break;
     default:
         {
 #ifdef READ