On 2/23/2024 2:51 PM, Marton Balint wrote:
On Fri, 23 Feb 2024, Anton Khirnov wrote:
This and the following commits fix #10857
---
doc/APIchanges | 3 +++
libavcodec/avcodec.h | 20 ++++++++++++++++++++
libavcodec/decode.c | 36 ++++++++++++++++++++++++++++++++++++
libavcodec/options_table.h | 12 ++++++++++++
4 files changed, 71 insertions(+)
diff --git a/doc/APIchanges b/doc/APIchanges
index 371fd2f465..78744a674a 100644
--- a/doc/APIchanges
+++ b/doc/APIchanges
@@ -2,6 +2,9 @@ The last version increases of all libraries were on
2023-02-09
API changes, most recent first:
+2024-02-xx - xxxxxxxxxx - lavc 60.xx.100 - avcodec.h
+ Add AVCodecContext.[nb_]side_data_prefer_global.
+
2024-02-xx - xxxxxxxxxx - lavu 58.xx.100 - opt.h
Add AV_OPT_FLAG_ARRAY and AVOption.array_max_size.
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index 43859251cc..307a3e99db 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -2120,6 +2120,26 @@ typedef struct AVCodecContext {
* an error.
*/
int64_t frame_num;
+
+ /**
+ * Decoding only. May be set by the caller before avcodec_open2()
to an
+ * av_malloc()'ed array (or via AVOptions). Owned and freed by
the decoder
+ * afterwards.
+ *
+ * By default, when some side data type is present both in global
+ * user-supplied coded_side_data and inside the coded bitstream,
avcodec
+ * will propagate the latter to the decoded frame.
+ *
+ * This array contains a list of AVPacketSideDataType for which this
+ * preference should be switched, i.e. avcodec will prefer global
side data
+ * over those in stored in the bytestream. It may also contain a
single -1,
+ * in which case the preference is switched for all side data types.
+ */
+ int *side_data_prefer_global;
Why is this a list and AV_OPT_FLAG_ARRAY? This simply should be a mask,
so AV_OPT_TYPE_FLAGS.
That would effectively limit side data element types to 64.
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