GstVideoPool

GstVideoPool — GstBufferPool for raw video buffers

Functions

Types and Values

Includes

#include <gst/video/gstvideopool.h>

Description

Special GstBufferPool subclass for raw video buffers.

Allows configuration of video-specific requirements such as stride alignments or pixel padding, and can also be configured to automatically add GstVideoMeta to the buffers.

Functions

gst_video_buffer_pool_new ()

GstBufferPool *
gst_video_buffer_pool_new (void);

Create a new bufferpool that can allocate video frames. This bufferpool supports all the video bufferpool options.

Returns

a new GstBufferPool to allocate video frames


gst_buffer_pool_config_get_video_alignment ()

gboolean
gst_buffer_pool_config_get_video_alignment
                               (GstStructure *config,
                                GstVideoAlignment *align);

Get the video alignment from the bufferpool configuration config in in align

Parameters

config

a GstStructure

 

align

a GstVideoAlignment

 

Returns

TRUE if config could be parsed correctly.


gst_buffer_pool_config_set_video_alignment ()

void
gst_buffer_pool_config_set_video_alignment
                               (GstStructure *config,
                                GstVideoAlignment *align);

Set the video alignment in align to the bufferpool configuration config

Parameters

config

a GstStructure

 

align

a GstVideoAlignment

 

Types and Values

struct GstVideoBufferPool

struct GstVideoBufferPool {
  GstBufferPool bufferpool;

  GstVideoBufferPoolPrivate *priv;
};

struct GstVideoBufferPoolClass

struct GstVideoBufferPoolClass {
  GstBufferPoolClass parent_class;
};

GST_BUFFER_POOL_OPTION_VIDEO_ALIGNMENT

#define GST_BUFFER_POOL_OPTION_VIDEO_ALIGNMENT "GstBufferPoolOptionVideoAlignment"

A bufferpool option to enable extra padding. When a bufferpool supports this option, gst_buffer_pool_config_set_video_alignment() can be called.

When this option is enabled on the bufferpool, GST_BUFFER_POOL_OPTION_VIDEO_META should also be enabled.


GST_BUFFER_POOL_OPTION_VIDEO_META

#define GST_BUFFER_POOL_OPTION_VIDEO_META "GstBufferPoolOptionVideoMeta"

An option that can be activated on bufferpool to request video metadata on buffers from the pool.

See Also

GstBufferPool