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[FFmpeg-devel,1/4] avcodec/cbs: add an AVClass to CodedBitstreamType for option handling

Message ID 20200920172443.4763-1-jamrial@gmail.com
State Superseded
Headers show
Series [FFmpeg-devel,1/4] avcodec/cbs: add an AVClass to CodedBitstreamType for option handling
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Checks

Context Check Description
andriy/default pending
andriy/make success Make finished
andriy/make_fate success Make fate finished

Commit Message

James Almer Sept. 20, 2020, 5:24 p.m. UTC
So unit parsing may be configured with caller set options.

Signed-off-by: James Almer <jamrial@gmail.com>
---
 libavcodec/cbs.c          | 9 +++++++++
 libavcodec/cbs_internal.h | 6 ++++++
 2 files changed, 15 insertions(+)

Comments

James Almer Oct. 1, 2020, 2:58 a.m. UTC | #1
On 9/20/2020 2:24 PM, James Almer wrote:
> So unit parsing may be configured with caller set options.
> 
> Signed-off-by: James Almer <jamrial@gmail.com>
> ---
>  libavcodec/cbs.c          | 9 +++++++++
>  libavcodec/cbs_internal.h | 6 ++++++
>  2 files changed, 15 insertions(+)

Ping for the set @Mark. Don't want to push this one without your opinion.
diff mbox series

Patch

diff --git a/libavcodec/cbs.c b/libavcodec/cbs.c
index 7c1aa005c2..e73e18f398 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;
@@ -123,6 +128,10 @@  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 d991e1eedf..10530af69f 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.