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[581/906] filter: add seperate filter function for operating on textures instead of buffers

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This commit is contained in:
Matthew Waters 2012-09-19 00:32:30 +10:00
parent 558e10be0f
commit e89266b664
2 changed files with 66 additions and 2 deletions
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64
gst-libs/gst/gl/gstglfilter.c
View file

@ -128,6 +128,7 @@ gst_gl_filter_class_init (GstGLFilterClass * klass)
klass->onStart = NULL;
klass->onStop = NULL;
klass->onReset = NULL;
klass->filter_texture = NULL;
}
static void
@ -558,7 +559,6 @@ gst_gl_filter_decide_allocation (GstBaseTransform * trans, GstQuery * query)
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set_params (config, caps, size, min, max);
gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META);
gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_GL_META);
gst_buffer_pool_set_config (pool, config);
if (update_pool)
@ -571,6 +571,64 @@ gst_gl_filter_decide_allocation (GstBaseTransform * trans, GstQuery * query)
return TRUE;
}
static gboolean
gst_gl_filter_filter_texture (GstGLFilter * filter, GstBuffer * inbuf,
GstBuffer * outbuf)
{
GstGLFilterClass *filter_class;
GstVideoFrame in_frame;
GstVideoFrame out_frame;
guint in_tex, out_tex;
gboolean ret, out_gl_wrapped = FALSE;
filter_class = GST_GL_FILTER_GET_CLASS (filter);
if (!gst_video_frame_map (&in_frame, &filter->in_info, inbuf,
GST_MAP_READ | GST_MAP_GL)) {
return FALSE;
}
if (!gst_video_frame_map (&out_frame, &filter->out_info, outbuf,
GST_MAP_WRITE | GST_MAP_GL)) {
gst_video_frame_unmap (&in_frame);
return FALSE;
}
if (gst_is_gl_memory (in_frame.map[0].memory)) {
in_tex = *(guint *) in_frame.data[0];
} else {
GST_INFO ("Input Buffer does not contain correct meta, "
"attempting to wrap for upload");
gst_gl_upload_perform_with_data (filter->upload, filter->in_tex_id,
in_frame.data);
in_tex = filter->in_tex_id;
}
if (gst_is_gl_memory (out_frame.map[0].memory)) {
out_tex = *(guint *) out_frame.data[0];
} else {
GST_INFO ("Output Buffer does not contain correct memory, "
"attempting to wrap for download");
out_tex = filter->out_tex_id;;
out_gl_wrapped = TRUE;
}
ret = filter_class->filter_texture (filter, in_tex, out_tex);
if (out_gl_wrapped) {
gst_gl_download_perform_with_data (filter->download, out_tex,
out_frame.data);
}
gst_video_frame_unmap (&in_frame);
gst_video_frame_unmap (&out_frame);
return ret;
}
static GstFlowReturn
gst_gl_filter_transform (GstBaseTransform * bt, GstBuffer * inbuf,
GstBuffer * outbuf)
@ -581,8 +639,12 @@ gst_gl_filter_transform (GstBaseTransform * bt, GstBuffer * inbuf,
filter = GST_GL_FILTER (bt);
filter_class = GST_GL_FILTER_GET_CLASS (bt);
g_assert (filter_class->filter || filter_class->filter_texture);
if (filter_class->filter)
filter_class->filter (filter, inbuf, outbuf);
else if (filter_class->filter_texture)
gst_gl_filter_filter_texture (filter, inbuf, outbuf);
return GST_FLOW_OK;
}

4
gst-libs/gst/gl/gstglfilter.h
View file

@ -28,7 +28,6 @@
#include <gst/video/video.h>
#include "gstglbufferpool.h"
#include "gstglmeta.h"
G_BEGIN_DECLS
@ -46,6 +45,8 @@ typedef gboolean (*GstGLFilterSetCaps) (GstGLFilter* filter,
GstCaps* incaps, GstCaps* outcaps);
typedef gboolean (*GstGLFilterProcessFunc) (GstGLFilter *filter,
GstBuffer *inbuf, GstBuffer *outbuf);
typedef gboolean (*GstGLFilterProcessTexture) (GstGLFilter *filter,
guint in_tex, guint out_tex);
typedef gboolean (*GstGLFilterOnInitFBO) (GstGLFilter *filter);
typedef void (*GstGLFilterOnReset) (GstGLFilter *filter);
typedef void (*GstGLFilterOnStart) (GstGLFilter *filter);
@ -82,6 +83,7 @@ struct _GstGLFilterClass
GstBaseTransformClass base_transform_class;
GstGLFilterSetCaps set_caps;
GstGLFilterProcessFunc filter;
GstGLFilterProcessTexture filter_texture;
GstGLFilterOnInitFBO onInitFBO;
GstGLFilterOnStart onStart;