static GstFlowReturn
gst_gl_mixer_aggregate_frames (GstVideoAggregator * vagg, GstBuffer * outbuf)
{
gboolean res = FALSE;
GstGLMixer *mix = GST_GL_MIXER (vagg);
GstGLMixerClass *mix_class = GST_GL_MIXER_GET_CLASS (vagg);
GstGLSyncMeta *sync_meta;
if (mix_class->process_buffers)
res = gst_gl_mixer_process_buffers (mix, outbuf);
else if (mix_class->process_textures)
res = gst_gl_mixer_process_textures (mix, outbuf);
sync_meta = gst_buffer_get_gl_sync_meta (outbuf);
if (sync_meta)
gst_gl_sync_meta_set_sync_point (sync_meta, mix->context);
return res ? GST_FLOW_OK : GST_FLOW_ERROR;
}
static GstFlowReturn
gst_gl_test_src_fill (GstPushSrc * psrc, GstBuffer * buffer)
{
GstGLTestSrc *src = GST_GL_TEST_SRC (psrc);
GstClockTime next_time;
GstVideoFrame out_frame;
GstGLSyncMeta *sync_meta;
if (G_UNLIKELY (!src->negotiated || !src->context))
goto not_negotiated;
/* 0 framerate and we are at the second frame, eos */
if (G_UNLIKELY (GST_VIDEO_INFO_FPS_N (&src->out_info) == 0
&& src->n_frames == 1))
goto eos;
if (!gst_video_frame_map (&out_frame, &src->out_info, buffer,
GST_MAP_WRITE | GST_MAP_GL)) {
return GST_FLOW_NOT_NEGOTIATED;
}
src->out_tex = (GstGLMemory *) out_frame.map[0].memory;
gst_gl_context_thread_add (src->context, (GstGLContextThreadFunc) _fill_gl,
src);
if (!src->gl_result) {
gst_video_frame_unmap (&out_frame);
goto gl_error;
}
gst_video_frame_unmap (&out_frame);
if (!src->gl_result)
goto gl_error;
sync_meta = gst_buffer_get_gl_sync_meta (buffer);
if (sync_meta)
gst_gl_sync_meta_set_sync_point (sync_meta, src->context);
GST_BUFFER_TIMESTAMP (buffer) = src->timestamp_offset + src->running_time;
GST_BUFFER_OFFSET (buffer) = src->n_frames;
src->n_frames++;
GST_BUFFER_OFFSET_END (buffer) = src->n_frames;
if (src->out_info.fps_n) {
next_time = gst_util_uint64_scale_int (src->n_frames * GST_SECOND,
src->out_info.fps_d, src->out_info.fps_n);
GST_BUFFER_DURATION (buffer) = next_time - src->running_time;
} else {
next_time = src->timestamp_offset;
/* NONE means forever */
GST_BUFFER_DURATION (buffer) = GST_CLOCK_TIME_NONE;
}
src->running_time = next_time;
return GST_FLOW_OK;
gl_error:
{
GST_ELEMENT_ERROR (src, RESOURCE, NOT_FOUND, (_("failed to draw pattern")),
(_("A GL error occured")));
return GST_FLOW_NOT_NEGOTIATED;
}
not_negotiated:
{
GST_ELEMENT_ERROR (src, CORE, NEGOTIATION, (NULL),
(_("format wasn't negotiated before get function")));
return GST_FLOW_NOT_NEGOTIATED;
}
eos:
{
GST_DEBUG_OBJECT (src, "eos: 0 framerate, frame %d", (gint) src->n_frames);
return GST_FLOW_EOS;
}
}
static GstBuffer *
_default_pad_upload_buffer (GstGLMixer * mix, GstGLMixerFrameData * frame,
GstBuffer * buffer)
{
GstVideoAggregatorPad *vaggpad = GST_VIDEO_AGGREGATOR_PAD (frame->pad);
GstGLMixerPad *pad = frame->pad;
GstBuffer *uploaded_buf, *gl_buffer;
GstCaps *gl_caps;
GstCapsFeatures *gl_features;
GstVideoInfo gl_info;
GstVideoFrame gl_frame;
GstGLSyncMeta *sync_meta;
gst_video_info_set_format (&gl_info,
GST_VIDEO_FORMAT_RGBA,
GST_VIDEO_INFO_WIDTH (&vaggpad->info),
GST_VIDEO_INFO_HEIGHT (&vaggpad->info));
gl_features =
gst_caps_features_from_string (GST_CAPS_FEATURE_MEMORY_GL_MEMORY);
gl_caps = gst_video_info_to_caps (&gl_info);
gst_caps_set_features (gl_caps, 0, gst_caps_features_copy (gl_features));
if (!pad->upload) {
GstCaps *in_caps = gst_pad_get_current_caps (GST_PAD (pad));
GstCaps *upload_caps = gst_caps_copy (in_caps);
pad->upload = gst_gl_upload_new (mix->context);
gst_caps_set_features (upload_caps, 0,
gst_caps_features_copy (gl_features));
gst_gl_upload_set_caps (pad->upload, in_caps, upload_caps);
if (!pad->convert) {
pad->convert = gst_gl_color_convert_new (mix->context);
gst_gl_color_convert_set_caps (pad->convert, upload_caps, gl_caps);
}
gst_caps_unref (upload_caps);
gst_caps_unref (in_caps);
}
gst_caps_features_free (gl_features);
gst_caps_unref (gl_caps);
sync_meta = gst_buffer_get_gl_sync_meta (vaggpad->buffer);
if (sync_meta)
gst_gl_sync_meta_wait (sync_meta);
if (gst_gl_upload_perform_with_buffer (pad->upload,
vaggpad->buffer, &uploaded_buf) != GST_GL_UPLOAD_DONE) {
return NULL;
}
if (!(gl_buffer = gst_gl_color_convert_perform (pad->convert, uploaded_buf))) {
gst_buffer_unref (uploaded_buf);
return NULL;
}
if (!gst_video_frame_map (&gl_frame, &gl_info, gl_buffer,
GST_MAP_READ | GST_MAP_GL)) {
gst_buffer_unref (uploaded_buf);
gst_buffer_unref (gl_buffer);
return NULL;
}
frame->texture = *(guint *) gl_frame.data[0];
gst_buffer_unref (uploaded_buf);
gst_video_frame_unmap (&gl_frame);
return gl_buffer;
}
