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gl/filter: attempt to passthrough the pool if the caps are the same

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Reduces the number of glbufferpool instances required for >=2
consecutive GL elements in a pipeline.
This commit is contained in:
Matthew Waters 2014-05-08 00:48:07 +10:00
parent c2cdac278e
commit 810d6710d4
1 changed files with 17 additions and 9 deletions
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26
gst-libs/gst/gl/gstglfilter.c
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@ -746,7 +746,7 @@ gst_gl_filter_propose_allocation (GstBaseTransform * trans,
GstGLFilter *filter = GST_GL_FILTER (trans);
GstBufferPool *pool;
GstStructure *config;
GstCaps *caps;
GstCaps *caps, *decide_caps;
guint size;
gboolean need_pool;
GError *error = NULL;
@ -792,20 +792,28 @@ gst_gl_filter_propose_allocation (GstBaseTransform * trans,
if (pool == NULL && need_pool) {
GstVideoInfo info;
GstBufferPool *decide_pool;
if (!gst_video_info_from_caps (&info, caps))
goto invalid_caps;
GST_DEBUG_OBJECT (filter, "create new pool");
pool = gst_gl_buffer_pool_new (filter->context);
gst_query_parse_allocation (decide_query, &decide_caps, NULL);
decide_pool = gst_base_transform_get_buffer_pool (trans);
if (gst_caps_is_equal_fixed (decide_caps, caps)) {
pool = decide_pool;
} else {
GST_DEBUG_OBJECT (filter, "create new pool");
gst_object_unref (decide_pool);
pool = gst_gl_buffer_pool_new (filter->context);
/* the normal size of a frame */
size = info.size;
/* the normal size of a frame */
size = info.size;
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set_params (config, caps, size, 0, 0);
if (!gst_buffer_pool_set_config (pool, config))
goto config_failed;
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set_params (config, caps, size, 0, 0);
if (!gst_buffer_pool_set_config (pool, config))
goto config_failed;
}
}
/* we need at least 2 buffer because we hold on to the last one */
if (pool) {