[FFmpeg-devel] [PATCH 1/2] avutil/buffer: add av_buffer_pool_buffer_get_opaque

[Marton Balint]

On Sat, 7 Dec 2019, Marton Balint wrote:

> In order to access the original opaque parameter of a buffer in the buffer
> pool. (The buffer pool implementation overrides the normal opaque parameter but
> also saves it so it is accessible).

Ping. Will apply soon.

Thanks,
Marton

>
> Signed-off-by: Marton Balint <cus at passwd.hu>
> ---
> doc/APIchanges      |  3 +++
> libavutil/buffer.c  |  6 ++++++
> libavutil/buffer.h  | 13 +++++++++++++
> libavutil/version.h |  4 ++--
> 4 files changed, 24 insertions(+), 2 deletions(-)
>
> diff --git a/doc/APIchanges b/doc/APIchanges
> index 401c65a753..5b8d801f06 100644
> --- a/doc/APIchanges
> +++ b/doc/APIchanges
> @@ -15,6 +15,9 @@ libavutil:     2017-10-21
> 
> API changes, most recent first:
> 
> +2019-12-xx - xxxxxxxxxx - lavu 56.37.100 - buffer.h
> +  Add av_buffer_pool_buffer_get_opaque().
> +
> 2019-11-17 - 1c23abc88f - lavu 56.36.100 - eval API
>   Add av_expr_count_vars().
> 
> diff --git a/libavutil/buffer.c b/libavutil/buffer.c
> index f0034b026a..ec00fb22ec 100644
> --- a/libavutil/buffer.c
> +++ b/libavutil/buffer.c
> @@ -355,3 +355,9 @@ AVBufferRef *av_buffer_pool_get(AVBufferPool *pool)
>
>     return ret;
> }
> +
> +void *av_buffer_pool_buffer_get_opaque(AVBufferRef *ref)
> +{
> +    BufferPoolEntry *buf = ref->buffer->opaque;
> +    return buf->opaque;
> +}
> diff --git a/libavutil/buffer.h b/libavutil/buffer.h
> index 73b6bd0b14..e0f94314f4 100644
> --- a/libavutil/buffer.h
> +++ b/libavutil/buffer.h
> @@ -284,6 +284,19 @@ void av_buffer_pool_uninit(AVBufferPool **pool);
>  */
> AVBufferRef *av_buffer_pool_get(AVBufferPool *pool);
> 
> +/**
> + * Query the original opaque parameter of an allocated buffer in the pool.
> + *
> + * @param ref a buffer reference to a buffer returned by av_buffer_pool_get.
> + * @return the opaque parameter set by the buffer allocator function of the
> + *         buffer pool.
> + *
> + * @note the opaque parameter of ref is used by the buffer pool implementation,
> + * therefore you have to use this function to access the original opaque
> + * parameter of an allocated buffer.
> + */
> +void *av_buffer_pool_buffer_get_opaque(AVBufferRef *ref);
> +
> /**
>  * @}
>  */
> diff --git a/libavutil/version.h b/libavutil/version.h
> index e18163388d..4de0fa1fc3 100644
> --- a/libavutil/version.h
> +++ b/libavutil/version.h
> @@ -79,8 +79,8 @@
>  */
> 
> #define LIBAVUTIL_VERSION_MAJOR  56
> -#define LIBAVUTIL_VERSION_MINOR  36
> -#define LIBAVUTIL_VERSION_MICRO 101
> +#define LIBAVUTIL_VERSION_MINOR  37
> +#define LIBAVUTIL_VERSION_MICRO 100
> 
> #define LIBAVUTIL_VERSION_INT   AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
>                                                LIBAVUTIL_VERSION_MINOR, \
> -- 
> 2.16.4
>
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