[FFmpeg-cvslog] avcodec/cbs_apv: don't return an error when reading empty buffers

[James Almer]

ffmpeg | branch: master | James Almer <jamrial at gmail.com> | Tue Apr 29 16:57:34 2025 -0300| [e80f32f3bdd56b1b6dd13229bc026439b8efb9be] | committer: James Almer

avcodec/cbs_apv: don't return an error when reading empty buffers

The output will be a fragment with zero units, which is a lot more user friendly
than making them think something went wrong, as it already happens with cbs_av1.

Signed-off-by: James Almer <jamrial at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=e80f32f3bdd56b1b6dd13229bc026439b8efb9be
---

 libavcodec/cbs_apv.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libavcodec/cbs_apv.c b/libavcodec/cbs_apv.c
index 2c4a1daaf0..e7dd04825c 100644
--- a/libavcodec/cbs_apv.c
+++ b/libavcodec/cbs_apv.c
@@ -168,8 +168,8 @@ static int cbs_apv_split_fragment(CodedBitstreamContext *ctx,
     uint32_t signature;
     int err, trace;
 
-    if (header) {
-        // Ignore extradata fragments.
+    if (header || !frag->data_size) {
+        // Ignore empty or extradata fragments.
         return 0;
     }