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gst: add buffer video meta support

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Fixes video buffer strides handling.
This enables passing of image datas with right line padding.
This commit is contained in:
Huang-Huang Bao 2023-02-03 13:02:49 +08:00 • committed by Wim Taymans
parent 38f88d3d25
commit 023577e391
5 changed files with 93 additions and 0 deletions
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47
src/gst/gstpipewirepool.c
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@ -109,6 +109,16 @@ void gst_pipewire_pool_wrap_buffer (GstPipeWirePool *pool, struct pw_buffer *b)
gst_buffer_insert_memory (buf, i, gmem);
}
if (pool->add_metavideo) {
gst_buffer_add_video_meta_full (buf, GST_VIDEO_FRAME_FLAG_NONE,
GST_VIDEO_INFO_FORMAT (&pool->video_info),
GST_VIDEO_INFO_WIDTH (&pool->video_info),
GST_VIDEO_INFO_HEIGHT (&pool->video_info),
GST_VIDEO_INFO_N_PLANES (&pool->video_info),
pool->video_info.offset,
pool->video_info.stride);
}
data->pool = gst_object_ref (pool);
data->owner = NULL;
data->header = spa_buffer_find_meta_data (b->buffer, SPA_META_Header, sizeof(*data->header));
@ -208,6 +218,41 @@ no_more_buffers:
}
}
static const gchar **
get_options (GstBufferPool * pool)
{
static const gchar *options[] = { GST_BUFFER_POOL_OPTION_VIDEO_META, NULL };
return options;
}
static gboolean
set_config (GstBufferPool * pool, GstStructure * config)
{
GstPipeWirePool *p = GST_PIPEWIRE_POOL (pool);
GstCaps *caps;
guint size, min_buffers, max_buffers;
gboolean has_video;
if (!gst_buffer_pool_config_get_params (config, &caps, &size, &min_buffers, &max_buffers)) {
GST_WARNING_OBJECT (pool, "invalid config");
return FALSE;
}
if (caps == NULL) {
GST_WARNING_OBJECT (pool, "no caps in config");
return FALSE;
}
has_video = gst_video_info_from_caps (&p->video_info, caps);
p->add_metavideo = has_video && gst_buffer_pool_config_has_option (config,
GST_BUFFER_POOL_OPTION_VIDEO_META);
gst_buffer_pool_config_set_params (config, caps, p->video_info.size, min_buffers, max_buffers);
return GST_BUFFER_POOL_CLASS (gst_pipewire_pool_parent_class)->set_config (pool, config);
}
static void
flush_start (GstBufferPool * pool)
{
@ -252,6 +297,8 @@ gst_pipewire_pool_class_init (GstPipeWirePoolClass * klass)
gobject_class->finalize = gst_pipewire_pool_finalize;
bufferpool_class->get_options = get_options;
bufferpool_class->set_config = set_config;
bufferpool_class->start = do_start;
bufferpool_class->flush_start = flush_start;
bufferpool_class->acquire_buffer = acquire_buffer;