Re: [FFmpeg-devel] [PATCH v2 1/1] avfilter/buffersink: Add video frame allocation callback
On 22 Jul 2023, at 21:10, John Cox wrote:
> On Sat, 22 Jul 2023 20:54:04 +0200, you wrote:
>
>> On 22 Jul 2023, at 18:41, John Cox wrote:
>>
>>> Add a callback to enable user allocation of video frames on the final
>>> stage of a filter chain.
>>>
>>> Signed-off-by: John Cox
>>> ---
>>> libavfilter/buffersink.c | 21 +
>>> libavfilter/buffersink.h | 27 +++
>>> libavfilter/version.h| 2 +-
>>> 3 files changed, 49 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/libavfilter/buffersink.c b/libavfilter/buffersink.c
>>> index 306c283f77..070b743186 100644
>>> --- a/libavfilter/buffersink.c
>>> +++ b/libavfilter/buffersink.c
>>> @@ -62,6 +62,11 @@ typedef struct BufferSinkContext {
>>> int sample_rates_size;
>>>
>>> AVFrame *peeked_frame;
>>> +
>>> +union {
>>> +av_buffersink_alloc_video_frame * video;
>>> +} alloc_cb;
>>> +void * alloc_v;
>>> } BufferSinkContext;
>>>
>>> #define NB_ITEMS(list) (list ## _size / sizeof(*list))
>>> @@ -154,6 +159,21 @@ int attribute_align_arg
>>> av_buffersink_get_samples(AVFilterContext *ctx,
>>> return get_frame_internal(ctx, frame, 0, nb_samples);
>>> }
>>>
>>> +static AVFrame * alloc_video_buffer(AVFilterLink *link, int w, int h)
>>> +{
>>> +AVFilterContext * const ctx = link->dst;
>>> +BufferSinkContext * const bs = ctx->priv;
>>> +return bs->alloc_cb.video ? bs->alloc_cb.video(ctx, bs->alloc_v, w, h)
>>> :
>>> +ff_default_get_video_buffer(link, w, h);
>>> +}
>>> +
>>> +void av_buffersink_set_alloc_video_frame(AVFilterContext *ctx,
>>> av_buffersink_alloc_video_frame * cb, void * v)
>>> +{
>>> +BufferSinkContext * const bs = ctx->priv;
>>> +bs->alloc_cb.video = cb;
>>> +bs->alloc_v = v;
>>> +}
>>> +
>>> static av_cold int common_init(AVFilterContext *ctx)
>>> {
>>> BufferSinkContext *buf = ctx->priv;
>>> @@ -381,6 +401,7 @@ static const AVFilterPad avfilter_vsink_buffer_inputs[]
>>> = {
>>> {
>>> .name = "default",
>>> .type = AVMEDIA_TYPE_VIDEO,
>>> +.get_buffer = {.video = alloc_video_buffer},
>>> },
>>> };
>>>
>>> diff --git a/libavfilter/buffersink.h b/libavfilter/buffersink.h
>>> index 64e08de53e..73f0ddc476 100644
>>> --- a/libavfilter/buffersink.h
>>> +++ b/libavfilter/buffersink.h
>>> @@ -166,6 +166,33 @@ int av_buffersink_get_frame(AVFilterContext *ctx,
>>> AVFrame *frame);
>>> */
>>> int av_buffersink_get_samples(AVFilterContext *ctx, AVFrame *frame, int
>>> nb_samples);
>>>
>>> +/**
>>> + * Callback from av_buffersink_set_alloc_video_frame to allocate
>>> + * a frame
>>> + *
>>> + * @param ctx pointer to a context of the abuffersink AVFilter.
>>> + * @param v opaque pointer passed to
>>> + * av_buffersink_set_alloc_video_frame
>>
>> Nit:
>>
>> You can use @ref av_buffersink_set_alloc_video_frame or even
>> shorter ::av_buffersink_set_alloc_video_frame to get a proper
>> reference to that function that will be linked.
>
> Thanks - will do - Is documentation built from this? I had a quick look
> to see if I could find some output to verify what I'd done but I failed
> to find it.
You can generate it (if you have doxygen installed) by running:
make apidoc
and it will end up in doc/doxy/html.
>
>>> + * @param w width of frame to allocate
>>> + * @param height of frame to allocate
>>> + *
>>> + * @return
>>> + * - The newly allocated frame
>>> + * - NULL if error
>>
>> Nit:
>>
>> This can use retval, for example like that:
>>
>> @retval AVFrame* The newly allocated frame
>> @retval NULL Error allocating the frame
>
> Will do.
>
> Ta
>
> JC
>
>>> + */
>>> +typedef AVFrame * av_buffersink_alloc_video_frame(AVFilterContext * ctx,
>>> void * v, int w, int h);
>>> +
>>> +/**
>>> + * Set a video frame allocation method for buffersink
>>> + *
>>> + * @param ctx pointer to a context of the abuffersink AVFilter.
>>> + * @param cb Callback to the allocation function. If set to NULL
>>> + * then the default avfilter allocation function will
>>> + * be used.
>>> + * @param v Opaque to pass to the allocation function
>>> + */
>>> +void av_buffersink_set_alloc_video_frame(AVFilterContext *ctx,
>>> av_buffersink_alloc_video_frame * cb, void * v);
>>> +
>>> /**
>>> * @}
>>> */
>>> diff --git a/libavfilter/version.h b/libavfilter/version.h
>>> index c001693e3c..54950497be 100644
>>> --- a/libavfilter/version.h
>>> +++ b/libavfilter/version.h
>>> @@ -31,7 +31,7 @@
>>>
>>> #include "version_major.h"
>>>
>>> -#define LIBAVFILTER_VERSION_MINOR 8
>>> +#define LIBAVFILTER_VERSION_MINOR 9
>>> #define LIBAVFILTER_VERSION_MICRO 102
>>>
>>>
>>> --
>>> 2.39.2
>>>
>>> ___
>>> ffmpeg-devel mailing list
>>> ffmpeg-devel@ffmpeg.org
>>> https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>>>
>>> To unsubscribe, visit link above, or email
>>> ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
>>
Re: [FFmpeg-devel] [PATCH v2 1/1] avfilter/buffersink: Add video frame allocation callback
On Sat, 22 Jul 2023 20:54:04 +0200, you wrote:
>On 22 Jul 2023, at 18:41, John Cox wrote:
>
>> Add a callback to enable user allocation of video frames on the final
>> stage of a filter chain.
>>
>> Signed-off-by: John Cox
>> ---
>> libavfilter/buffersink.c | 21 +
>> libavfilter/buffersink.h | 27 +++
>> libavfilter/version.h| 2 +-
>> 3 files changed, 49 insertions(+), 1 deletion(-)
>>
>> diff --git a/libavfilter/buffersink.c b/libavfilter/buffersink.c
>> index 306c283f77..070b743186 100644
>> --- a/libavfilter/buffersink.c
>> +++ b/libavfilter/buffersink.c
>> @@ -62,6 +62,11 @@ typedef struct BufferSinkContext {
>> int sample_rates_size;
>>
>> AVFrame *peeked_frame;
>> +
>> +union {
>> +av_buffersink_alloc_video_frame * video;
>> +} alloc_cb;
>> +void * alloc_v;
>> } BufferSinkContext;
>>
>> #define NB_ITEMS(list) (list ## _size / sizeof(*list))
>> @@ -154,6 +159,21 @@ int attribute_align_arg
>> av_buffersink_get_samples(AVFilterContext *ctx,
>> return get_frame_internal(ctx, frame, 0, nb_samples);
>> }
>>
>> +static AVFrame * alloc_video_buffer(AVFilterLink *link, int w, int h)
>> +{
>> +AVFilterContext * const ctx = link->dst;
>> +BufferSinkContext * const bs = ctx->priv;
>> +return bs->alloc_cb.video ? bs->alloc_cb.video(ctx, bs->alloc_v, w, h) :
>> +ff_default_get_video_buffer(link, w, h);
>> +}
>> +
>> +void av_buffersink_set_alloc_video_frame(AVFilterContext *ctx,
>> av_buffersink_alloc_video_frame * cb, void * v)
>> +{
>> +BufferSinkContext * const bs = ctx->priv;
>> +bs->alloc_cb.video = cb;
>> +bs->alloc_v = v;
>> +}
>> +
>> static av_cold int common_init(AVFilterContext *ctx)
>> {
>> BufferSinkContext *buf = ctx->priv;
>> @@ -381,6 +401,7 @@ static const AVFilterPad avfilter_vsink_buffer_inputs[]
>> = {
>> {
>> .name = "default",
>> .type = AVMEDIA_TYPE_VIDEO,
>> +.get_buffer = {.video = alloc_video_buffer},
>> },
>> };
>>
>> diff --git a/libavfilter/buffersink.h b/libavfilter/buffersink.h
>> index 64e08de53e..73f0ddc476 100644
>> --- a/libavfilter/buffersink.h
>> +++ b/libavfilter/buffersink.h
>> @@ -166,6 +166,33 @@ int av_buffersink_get_frame(AVFilterContext *ctx,
>> AVFrame *frame);
>> */
>> int av_buffersink_get_samples(AVFilterContext *ctx, AVFrame *frame, int
>> nb_samples);
>>
>> +/**
>> + * Callback from av_buffersink_set_alloc_video_frame to allocate
>> + * a frame
>> + *
>> + * @param ctx pointer to a context of the abuffersink AVFilter.
>> + * @param v opaque pointer passed to
>> + * av_buffersink_set_alloc_video_frame
>
>Nit:
>
>You can use @ref av_buffersink_set_alloc_video_frame or even
>shorter ::av_buffersink_set_alloc_video_frame to get a proper
>reference to that function that will be linked.
Thanks - will do - Is documentation built from this? I had a quick look
to see if I could find some output to verify what I'd done but I failed
to find it.
>> + * @param w width of frame to allocate
>> + * @param height of frame to allocate
>> + *
>> + * @return
>> + * - The newly allocated frame
>> + * - NULL if error
>
>Nit:
>
>This can use retval, for example like that:
>
>@retval AVFrame* The newly allocated frame
>@retval NULL Error allocating the frame
Will do.
Ta
JC
>> + */
>> +typedef AVFrame * av_buffersink_alloc_video_frame(AVFilterContext * ctx,
>> void * v, int w, int h);
>> +
>> +/**
>> + * Set a video frame allocation method for buffersink
>> + *
>> + * @param ctx pointer to a context of the abuffersink AVFilter.
>> + * @param cb Callback to the allocation function. If set to NULL
>> + * then the default avfilter allocation function will
>> + * be used.
>> + * @param v Opaque to pass to the allocation function
>> + */
>> +void av_buffersink_set_alloc_video_frame(AVFilterContext *ctx,
>> av_buffersink_alloc_video_frame * cb, void * v);
>> +
>> /**
>> * @}
>> */
>> diff --git a/libavfilter/version.h b/libavfilter/version.h
>> index c001693e3c..54950497be 100644
>> --- a/libavfilter/version.h
>> +++ b/libavfilter/version.h
>> @@ -31,7 +31,7 @@
>>
>> #include "version_major.h"
>>
>> -#define LIBAVFILTER_VERSION_MINOR 8
>> +#define LIBAVFILTER_VERSION_MINOR 9
>> #define LIBAVFILTER_VERSION_MICRO 102
>>
>>
>> --
>> 2.39.2
>>
>> ___
>> ffmpeg-devel mailing list
>> ffmpeg-devel@ffmpeg.org
>> https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>>
>> To unsubscribe, visit link above, or email
>> ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
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Re: [FFmpeg-devel] [PATCH v2 1/1] avfilter/buffersink: Add video frame allocation callback
On 22 Jul 2023, at 18:41, John Cox wrote:
> Add a callback to enable user allocation of video frames on the final
> stage of a filter chain.
>
> Signed-off-by: John Cox
> ---
> libavfilter/buffersink.c | 21 +
> libavfilter/buffersink.h | 27 +++
> libavfilter/version.h| 2 +-
> 3 files changed, 49 insertions(+), 1 deletion(-)
>
> diff --git a/libavfilter/buffersink.c b/libavfilter/buffersink.c
> index 306c283f77..070b743186 100644
> --- a/libavfilter/buffersink.c
> +++ b/libavfilter/buffersink.c
> @@ -62,6 +62,11 @@ typedef struct BufferSinkContext {
> int sample_rates_size;
>
> AVFrame *peeked_frame;
> +
> +union {
> +av_buffersink_alloc_video_frame * video;
> +} alloc_cb;
> +void * alloc_v;
> } BufferSinkContext;
>
> #define NB_ITEMS(list) (list ## _size / sizeof(*list))
> @@ -154,6 +159,21 @@ int attribute_align_arg
> av_buffersink_get_samples(AVFilterContext *ctx,
> return get_frame_internal(ctx, frame, 0, nb_samples);
> }
>
> +static AVFrame * alloc_video_buffer(AVFilterLink *link, int w, int h)
> +{
> +AVFilterContext * const ctx = link->dst;
> +BufferSinkContext * const bs = ctx->priv;
> +return bs->alloc_cb.video ? bs->alloc_cb.video(ctx, bs->alloc_v, w, h) :
> +ff_default_get_video_buffer(link, w, h);
> +}
> +
> +void av_buffersink_set_alloc_video_frame(AVFilterContext *ctx,
> av_buffersink_alloc_video_frame * cb, void * v)
> +{
> +BufferSinkContext * const bs = ctx->priv;
> +bs->alloc_cb.video = cb;
> +bs->alloc_v = v;
> +}
> +
> static av_cold int common_init(AVFilterContext *ctx)
> {
> BufferSinkContext *buf = ctx->priv;
> @@ -381,6 +401,7 @@ static const AVFilterPad avfilter_vsink_buffer_inputs[] =
> {
> {
> .name = "default",
> .type = AVMEDIA_TYPE_VIDEO,
> +.get_buffer = {.video = alloc_video_buffer},
> },
> };
>
> diff --git a/libavfilter/buffersink.h b/libavfilter/buffersink.h
> index 64e08de53e..73f0ddc476 100644
> --- a/libavfilter/buffersink.h
> +++ b/libavfilter/buffersink.h
> @@ -166,6 +166,33 @@ int av_buffersink_get_frame(AVFilterContext *ctx,
> AVFrame *frame);
> */
> int av_buffersink_get_samples(AVFilterContext *ctx, AVFrame *frame, int
> nb_samples);
>
> +/**
> + * Callback from av_buffersink_set_alloc_video_frame to allocate
> + * a frame
> + *
> + * @param ctx pointer to a context of the abuffersink AVFilter.
> + * @param v opaque pointer passed to
> + * av_buffersink_set_alloc_video_frame
Nit:
You can use @ref av_buffersink_set_alloc_video_frame or even
shorter ::av_buffersink_set_alloc_video_frame to get a proper
reference to that function that will be linked.
> + * @param w width of frame to allocate
> + * @param height of frame to allocate
> + *
> + * @return
> + * - The newly allocated frame
> + * - NULL if error
Nit:
This can use retval, for example like that:
@retval AVFrame* The newly allocated frame
@retval NULL Error allocating the frame
> + */
> +typedef AVFrame * av_buffersink_alloc_video_frame(AVFilterContext * ctx,
> void * v, int w, int h);
> +
> +/**
> + * Set a video frame allocation method for buffersink
> + *
> + * @param ctx pointer to a context of the abuffersink AVFilter.
> + * @param cb Callback to the allocation function. If set to NULL
> + * then the default avfilter allocation function will
> + * be used.
> + * @param v Opaque to pass to the allocation function
> + */
> +void av_buffersink_set_alloc_video_frame(AVFilterContext *ctx,
> av_buffersink_alloc_video_frame * cb, void * v);
> +
> /**
> * @}
> */
> diff --git a/libavfilter/version.h b/libavfilter/version.h
> index c001693e3c..54950497be 100644
> --- a/libavfilter/version.h
> +++ b/libavfilter/version.h
> @@ -31,7 +31,7 @@
>
> #include "version_major.h"
>
> -#define LIBAVFILTER_VERSION_MINOR 8
> +#define LIBAVFILTER_VERSION_MINOR 9
> #define LIBAVFILTER_VERSION_MICRO 102
>
>
> --
> 2.39.2
>
> ___
> ffmpeg-devel mailing list
> ffmpeg-devel@ffmpeg.org
> https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>
> To unsubscribe, visit link above, or email
> ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
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Re: [FFmpeg-devel] [PATCH v2 1/1] avfilter/buffersink: Add video frame allocation callback
John Cox (12023-07-22): > Finger trouble - repost of previous patch - please ignore No problem, I was about to make the remark. But please do not Cc people who have not asked for it. Especially when the mail says "Reply-To: ffmpeg-devel@ffmpeg.org". Regards, -- Nicolas George signature.asc Description: PGP signature ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-devel] [PATCH v2 1/1] avfilter/buffersink: Add video frame allocation callback
Finger trouble - repost of previous patch - please ignore
Sorry
JC
>Add a callback to enable user allocation of video frames on the final
>stage of a filter chain.
>
>Signed-off-by: John Cox
>---
> libavfilter/buffersink.c | 21 +
> libavfilter/buffersink.h | 27 +++
> libavfilter/version.h| 2 +-
> 3 files changed, 49 insertions(+), 1 deletion(-)
>
>diff --git a/libavfilter/buffersink.c b/libavfilter/buffersink.c
>index 306c283f77..070b743186 100644
>--- a/libavfilter/buffersink.c
>+++ b/libavfilter/buffersink.c
>@@ -62,6 +62,11 @@ typedef struct BufferSinkContext {
> int sample_rates_size;
>
> AVFrame *peeked_frame;
>+
>+union {
>+av_buffersink_alloc_video_frame * video;
>+} alloc_cb;
>+void * alloc_v;
> } BufferSinkContext;
>
> #define NB_ITEMS(list) (list ## _size / sizeof(*list))
>@@ -154,6 +159,21 @@ int attribute_align_arg
>av_buffersink_get_samples(AVFilterContext *ctx,
> return get_frame_internal(ctx, frame, 0, nb_samples);
> }
>
>+static AVFrame * alloc_video_buffer(AVFilterLink *link, int w, int h)
>+{
>+AVFilterContext * const ctx = link->dst;
>+BufferSinkContext * const bs = ctx->priv;
>+return bs->alloc_cb.video ? bs->alloc_cb.video(ctx, bs->alloc_v, w, h) :
>+ff_default_get_video_buffer(link, w, h);
>+}
>+
>+void av_buffersink_set_alloc_video_frame(AVFilterContext *ctx,
>av_buffersink_alloc_video_frame * cb, void * v)
>+{
>+BufferSinkContext * const bs = ctx->priv;
>+bs->alloc_cb.video = cb;
>+bs->alloc_v = v;
>+}
>+
> static av_cold int common_init(AVFilterContext *ctx)
> {
> BufferSinkContext *buf = ctx->priv;
>@@ -381,6 +401,7 @@ static const AVFilterPad avfilter_vsink_buffer_inputs[] = {
> {
> .name = "default",
> .type = AVMEDIA_TYPE_VIDEO,
>+.get_buffer = {.video = alloc_video_buffer},
> },
> };
>
>diff --git a/libavfilter/buffersink.h b/libavfilter/buffersink.h
>index 64e08de53e..73f0ddc476 100644
>--- a/libavfilter/buffersink.h
>+++ b/libavfilter/buffersink.h
>@@ -166,6 +166,33 @@ int av_buffersink_get_frame(AVFilterContext *ctx, AVFrame
>*frame);
> */
> int av_buffersink_get_samples(AVFilterContext *ctx, AVFrame *frame, int
> nb_samples);
>
>+/**
>+ * Callback from av_buffersink_set_alloc_video_frame to allocate
>+ * a frame
>+ *
>+ * @param ctx pointer to a context of the abuffersink AVFilter.
>+ * @param v opaque pointer passed to
>+ * av_buffersink_set_alloc_video_frame
>+ * @param w width of frame to allocate
>+ * @param height of frame to allocate
>+ *
>+ * @return
>+ * - The newly allocated frame
>+ * - NULL if error
>+ */
>+typedef AVFrame * av_buffersink_alloc_video_frame(AVFilterContext * ctx, void
>* v, int w, int h);
>+
>+/**
>+ * Set a video frame allocation method for buffersink
>+ *
>+ * @param ctx pointer to a context of the abuffersink AVFilter.
>+ * @param cb Callback to the allocation function. If set to NULL
>+ * then the default avfilter allocation function will
>+ * be used.
>+ * @param v Opaque to pass to the allocation function
>+ */
>+void av_buffersink_set_alloc_video_frame(AVFilterContext *ctx,
>av_buffersink_alloc_video_frame * cb, void * v);
>+
> /**
> * @}
> */
>diff --git a/libavfilter/version.h b/libavfilter/version.h
>index c001693e3c..54950497be 100644
>--- a/libavfilter/version.h
>+++ b/libavfilter/version.h
>@@ -31,7 +31,7 @@
>
> #include "version_major.h"
>
>-#define LIBAVFILTER_VERSION_MINOR 8
>+#define LIBAVFILTER_VERSION_MINOR 9
> #define LIBAVFILTER_VERSION_MICRO 102
>
>
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[FFmpeg-devel] [PATCH v2 1/1] avfilter/buffersink: Add video frame allocation callback
Add a callback to enable user allocation of video frames on the final
stage of a filter chain.
Signed-off-by: John Cox
---
libavfilter/buffersink.c | 21 +
libavfilter/buffersink.h | 27 +++
libavfilter/version.h| 2 +-
3 files changed, 49 insertions(+), 1 deletion(-)
diff --git a/libavfilter/buffersink.c b/libavfilter/buffersink.c
index 306c283f77..070b743186 100644
--- a/libavfilter/buffersink.c
+++ b/libavfilter/buffersink.c
@@ -62,6 +62,11 @@ typedef struct BufferSinkContext {
int sample_rates_size;
AVFrame *peeked_frame;
+
+union {
+av_buffersink_alloc_video_frame * video;
+} alloc_cb;
+void * alloc_v;
} BufferSinkContext;
#define NB_ITEMS(list) (list ## _size / sizeof(*list))
@@ -154,6 +159,21 @@ int attribute_align_arg
av_buffersink_get_samples(AVFilterContext *ctx,
return get_frame_internal(ctx, frame, 0, nb_samples);
}
+static AVFrame * alloc_video_buffer(AVFilterLink *link, int w, int h)
+{
+AVFilterContext * const ctx = link->dst;
+BufferSinkContext * const bs = ctx->priv;
+return bs->alloc_cb.video ? bs->alloc_cb.video(ctx, bs->alloc_v, w, h) :
+ff_default_get_video_buffer(link, w, h);
+}
+
+void av_buffersink_set_alloc_video_frame(AVFilterContext *ctx,
av_buffersink_alloc_video_frame * cb, void * v)
+{
+BufferSinkContext * const bs = ctx->priv;
+bs->alloc_cb.video = cb;
+bs->alloc_v = v;
+}
+
static av_cold int common_init(AVFilterContext *ctx)
{
BufferSinkContext *buf = ctx->priv;
@@ -381,6 +401,7 @@ static const AVFilterPad avfilter_vsink_buffer_inputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
+.get_buffer = {.video = alloc_video_buffer},
},
};
diff --git a/libavfilter/buffersink.h b/libavfilter/buffersink.h
index 64e08de53e..73f0ddc476 100644
--- a/libavfilter/buffersink.h
+++ b/libavfilter/buffersink.h
@@ -166,6 +166,33 @@ int av_buffersink_get_frame(AVFilterContext *ctx, AVFrame
*frame);
*/
int av_buffersink_get_samples(AVFilterContext *ctx, AVFrame *frame, int
nb_samples);
+/**
+ * Callback from av_buffersink_set_alloc_video_frame to allocate
+ * a frame
+ *
+ * @param ctx pointer to a context of the abuffersink AVFilter.
+ * @param v opaque pointer passed to
+ * av_buffersink_set_alloc_video_frame
+ * @param w width of frame to allocate
+ * @param height of frame to allocate
+ *
+ * @return
+ * - The newly allocated frame
+ * - NULL if error
+ */
+typedef AVFrame * av_buffersink_alloc_video_frame(AVFilterContext * ctx, void
* v, int w, int h);
+
+/**
+ * Set a video frame allocation method for buffersink
+ *
+ * @param ctx pointer to a context of the abuffersink AVFilter.
+ * @param cb Callback to the allocation function. If set to NULL
+ * then the default avfilter allocation function will
+ * be used.
+ * @param v Opaque to pass to the allocation function
+ */
+void av_buffersink_set_alloc_video_frame(AVFilterContext *ctx,
av_buffersink_alloc_video_frame * cb, void * v);
+
/**
* @}
*/
diff --git a/libavfilter/version.h b/libavfilter/version.h
index c001693e3c..54950497be 100644
--- a/libavfilter/version.h
+++ b/libavfilter/version.h
@@ -31,7 +31,7 @@
#include "version_major.h"
-#define LIBAVFILTER_VERSION_MINOR 8
+#define LIBAVFILTER_VERSION_MINOR 9
#define LIBAVFILTER_VERSION_MICRO 102
--
2.39.2
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