[FFmpeg-cvslog] avcodec/cbs: add an AVClass to CodedBitstreamType for option handling
James Almer
git at videolan.org
Mon Jan 4 21:39:36 EET 2021
ffmpeg | branch: master | James Almer <jamrial at gmail.com> | Sun Nov 15 18:55:38 2020 -0300| [9caf132462de6fe9b68644703c953c899c4e5bb8] | committer: James Almer
avcodec/cbs: add an AVClass to CodedBitstreamType for option handling
So unit parsing may be configured with caller set options.
Signed-off-by: James Almer <jamrial at gmail.com>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=9caf132462de6fe9b68644703c953c899c4e5bb8
---
libavcodec/cbs.c | 9 +++++++++
libavcodec/cbs_internal.h | 6 ++++++
2 files changed, 15 insertions(+)
diff --git a/libavcodec/cbs.c b/libavcodec/cbs.c
index e7025cce07..d7efac5b93 100644
--- a/libavcodec/cbs.c
+++ b/libavcodec/cbs.c
@@ -23,6 +23,7 @@
#include "libavutil/avassert.h"
#include "libavutil/buffer.h"
#include "libavutil/common.h"
+#include "libavutil/opt.h"
#include "cbs.h"
#include "cbs_internal.h"
@@ -101,6 +102,10 @@ int ff_cbs_init(CodedBitstreamContext **ctx_ptr,
av_freep(&ctx);
return AVERROR(ENOMEM);
}
+ if (type->priv_class) {
+ *(const AVClass **)ctx->priv_data = type->priv_class;
+ av_opt_set_defaults(ctx->priv_data);
+ }
}
ctx->decompose_unit_types = NULL;
@@ -129,6 +134,10 @@ void ff_cbs_close(CodedBitstreamContext **ctx_ptr)
ctx->codec->close(ctx);
av_freep(&ctx->write_buffer);
+
+ if (ctx->codec->priv_class && ctx->priv_data)
+ av_opt_free(ctx->priv_data);
+
av_freep(&ctx->priv_data);
av_freep(ctx_ptr);
}
diff --git a/libavcodec/cbs_internal.h b/libavcodec/cbs_internal.h
index faa847aad3..a392880036 100644
--- a/libavcodec/cbs_internal.h
+++ b/libavcodec/cbs_internal.h
@@ -86,6 +86,12 @@ typedef const struct CodedBitstreamUnitTypeDescriptor {
typedef struct CodedBitstreamType {
enum AVCodecID codec_id;
+ // A class for the private data, used to declare private AVOptions.
+ // This field is NULL for types that do not declare any options.
+ // If this field is non-NULL, the first member of the filter private data
+ // must be a pointer to AVClass.
+ const AVClass *priv_class;
+
size_t priv_data_size;
// List of unit type descriptors for this codec.
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