[FFmpeg-devel] [PATCH] lavc/cbs_sei: Fix H.264/5 SEI unit ordering

Jon Waltman jwaltman at toyon.com
Mon Jan 24 03:37:07 EET 2022


Fixes regression from commit 8843607f495c95c1e67a3ce3d6f15dca6e252439
causing incorrect SEI unit ordering (e.g. after H264_NAL_IDR_SLICE when
prefix is specified).

Signed-off-by: Jon Waltman <jwaltman at toyon.com>
---
 libavcodec/cbs_sei.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libavcodec/cbs_sei.c b/libavcodec/cbs_sei.c
index 141e97ec58..4a4a58957b 100644
--- a/libavcodec/cbs_sei.c
+++ b/libavcodec/cbs_sei.c
@@ -154,14 +154,14 @@ static int cbs_sei_get_unit(CodedBitstreamContext *ctx,
     if (prefix) {
         // ... before the first VCL NAL unit.
         for (i = 0; i < au->nb_units; i++) {
-            if (au->units[i].type < highest_vcl_type)
+            if (au->units[i].type <= highest_vcl_type)
                 break;
         }
         position = i;
     } else {
         // ... after the last VCL NAL unit.
         for (i = au->nb_units - 1; i >= 0; i--) {
-            if (au->units[i].type < highest_vcl_type)
+            if (au->units[i].type <= highest_vcl_type)
                 break;
         }
         if (i < 0) {
--
2.25.1



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