static gboolean
stereosplit_propose_allocation (GstGLStereoSplit * self, GstQuery * query)
{
if (!gst_gl_ensure_element_data (self, &self->display, &self->other_context))
return FALSE;
_init_upload (self);
gst_gl_upload_propose_allocation (self->upload, NULL, query);
return TRUE;
}
static gboolean
_upload_memory (GstGLUpload * upload)
{
guint in_width, in_height;
guint in_texture[GST_VIDEO_MAX_PLANES];
GstBuffer *inbuf;
GstVideoFrame out_frame;
GstVideoInfo out_info;
gint i;
in_width = GST_VIDEO_INFO_WIDTH (&upload->in_info);
in_height = GST_VIDEO_INFO_HEIGHT (&upload->in_info);
if (!upload->initted) {
if (!_init_upload (upload)) {
return FALSE;
}
}
inbuf = gst_buffer_new ();
for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&upload->in_info); i++) {
in_texture[i] = upload->in_tex[i]->tex_id;
gst_buffer_append_memory (inbuf,
gst_memory_ref ((GstMemory *) upload->in_tex[i]));
}
GST_TRACE ("uploading with textures:%u,%u,%u dimensions:%ux%u",
in_texture[0], in_texture[1], in_texture[2], in_width, in_height);
upload->priv->outbuf = gst_gl_color_convert_perform (upload->convert, inbuf);
gst_buffer_unref (inbuf);
gst_video_info_set_format (&out_info, GST_VIDEO_FORMAT_RGBA, in_width,
in_height);
if (!gst_video_frame_map (&out_frame, &out_info, upload->priv->outbuf,
GST_MAP_READ | GST_MAP_GL)) {
gst_buffer_unref (upload->priv->outbuf);
upload->priv->outbuf = NULL;
return FALSE;
}
upload->out_tex->tex_id = *(guint *) out_frame.data[0];
gst_video_frame_unmap (&out_frame);
upload->priv->released = FALSE;
return TRUE;
}
static GstFlowReturn
stereosplit_chain (GstPad * pad, GstGLStereoSplit * split, GstBuffer * buf)
{
GstBuffer *uploaded_buffer, *converted_buffer, *left, *right;
GstBuffer *split_buffer = NULL;
GstFlowReturn ret;
gint i, n_planes;
if (!split->upload)
_init_upload (split);
n_planes = GST_VIDEO_INFO_N_PLANES (&split->viewconvert->out_info);
GST_LOG_OBJECT (split, "chaining buffer %" GST_PTR_FORMAT, buf);
if (GST_GL_UPLOAD_DONE != gst_gl_upload_perform_with_buffer (split->upload,
buf, &uploaded_buffer)) {
gst_buffer_unref (buf);
GST_ELEMENT_ERROR (split, RESOURCE, NOT_FOUND, ("%s",
"Failed to upload buffer"), (NULL));
return GST_FLOW_ERROR;
}
gst_buffer_unref (buf);
if (!(converted_buffer =
gst_gl_color_convert_perform (split->convert, uploaded_buffer))) {
GST_ELEMENT_ERROR (split, RESOURCE, NOT_FOUND, ("%s",
"Failed to convert buffer"), (NULL));
gst_buffer_unref (uploaded_buffer);
return GST_FLOW_ERROR;
}
gst_buffer_unref (uploaded_buffer);
if (gst_gl_view_convert_submit_input_buffer (split->viewconvert,
GST_BUFFER_IS_DISCONT (converted_buffer),
converted_buffer) != GST_FLOW_OK) {
GST_ELEMENT_ERROR (split, RESOURCE, NOT_FOUND, ("%s",
"Failed to 3d convert buffer"),
("Could not get submit input buffer"));
return GST_FLOW_ERROR;
}
ret = gst_gl_view_convert_get_output (split->viewconvert, &split_buffer);
if (ret != GST_FLOW_OK) {
GST_ELEMENT_ERROR (split, RESOURCE, NOT_FOUND, ("%s",
"Failed to 3d convert buffer"), ("Could not get output buffer"));
return GST_FLOW_ERROR;
}
if (split_buffer == NULL)
return GST_FLOW_OK; /* Need another input buffer */
left = gst_buffer_new ();
gst_buffer_copy_into (left, buf,
GST_BUFFER_COPY_FLAGS | GST_BUFFER_COPY_TIMESTAMPS, 0, -1);
GST_BUFFER_FLAG_UNSET (left, GST_VIDEO_BUFFER_FLAG_FIRST_IN_BUNDLE);
gst_buffer_add_parent_buffer_meta (left, split_buffer);
for (i = 0; i < n_planes; i++) {
GstMemory *mem = gst_buffer_get_memory (split_buffer, i);
gst_buffer_append_memory (left, mem);
}
ret = gst_pad_push (split->left_pad, gst_buffer_ref (left));
/* Allow unlinked on the first pad - as long as the 2nd isn't unlinked */
gst_buffer_unref (left);
if (G_UNLIKELY (ret != GST_FLOW_OK && ret != GST_FLOW_NOT_LINKED)) {
gst_buffer_unref (split_buffer);
return ret;
}
right = gst_buffer_new ();
gst_buffer_copy_into (right, buf,
GST_BUFFER_COPY_FLAGS | GST_BUFFER_COPY_TIMESTAMPS, 0, -1);
GST_BUFFER_FLAG_UNSET (left, GST_VIDEO_BUFFER_FLAG_FIRST_IN_BUNDLE);
gst_buffer_add_parent_buffer_meta (right, split_buffer);
for (i = n_planes; i < n_planes * 2; i++) {
GstMemory *mem = gst_buffer_get_memory (split_buffer, i);
gst_buffer_append_memory (right, mem);
}
ret = gst_pad_push (split->right_pad, gst_buffer_ref (right));
gst_buffer_unref (right);
gst_buffer_unref (split_buffer);
return ret;
}
