static gboolean
gst_glimage_sink_set_caps (GstBaseSink * bsink, GstCaps * caps)
{
GstGLImageSink *glimage_sink;
gint width;
gint height;
gboolean ok;
gint par_n, par_d;
gint display_par_n, display_par_d;
guint display_ratio_num, display_ratio_den;
GstVideoInfo vinfo;
GstStructure *structure;
GstBufferPool *newpool, *oldpool;
GST_DEBUG ("set caps with %" GST_PTR_FORMAT, caps);
glimage_sink = GST_GLIMAGE_SINK (bsink);
ok = gst_video_info_from_caps (&vinfo, caps);
if (!ok)
return FALSE;
width = GST_VIDEO_INFO_WIDTH (&vinfo);
height = GST_VIDEO_INFO_HEIGHT (&vinfo);
par_n = GST_VIDEO_INFO_PAR_N (&vinfo);
par_d = GST_VIDEO_INFO_PAR_D (&vinfo);
if (!par_n)
par_n = 1;
/* get display's PAR */
if (glimage_sink->par_n != 0 && glimage_sink->par_d != 0) {
display_par_n = glimage_sink->par_n;
display_par_d = glimage_sink->par_d;
} else {
display_par_n = 1;
display_par_d = 1;
}
ok = gst_video_calculate_display_ratio (&display_ratio_num,
&display_ratio_den, width, height, par_n, par_d, display_par_n,
display_par_d);
if (!ok)
return FALSE;
GST_TRACE ("PAR: %u/%u DAR:%u/%u", par_n, par_d, display_par_n,
display_par_d);
if (height % display_ratio_den == 0) {
GST_DEBUG ("keeping video height");
GST_VIDEO_SINK_WIDTH (glimage_sink) = (guint)
gst_util_uint64_scale_int (height, display_ratio_num,
display_ratio_den);
GST_VIDEO_SINK_HEIGHT (glimage_sink) = height;
} else if (width % display_ratio_num == 0) {
GST_DEBUG ("keeping video width");
GST_VIDEO_SINK_WIDTH (glimage_sink) = width;
GST_VIDEO_SINK_HEIGHT (glimage_sink) = (guint)
gst_util_uint64_scale_int (width, display_ratio_den, display_ratio_num);
} else {
GST_DEBUG ("approximating while keeping video height");
GST_VIDEO_SINK_WIDTH (glimage_sink) = (guint)
gst_util_uint64_scale_int (height, display_ratio_num,
display_ratio_den);
GST_VIDEO_SINK_HEIGHT (glimage_sink) = height;
}
GST_DEBUG ("scaling to %dx%d", GST_VIDEO_SINK_WIDTH (glimage_sink),
GST_VIDEO_SINK_HEIGHT (glimage_sink));
glimage_sink->info = vinfo;
if (!_ensure_gl_setup (glimage_sink))
return FALSE;
newpool = gst_gl_buffer_pool_new (glimage_sink->context);
structure = gst_buffer_pool_get_config (newpool);
gst_buffer_pool_config_set_params (structure, caps, vinfo.size, 2, 0);
gst_buffer_pool_set_config (newpool, structure);
oldpool = glimage_sink->pool;
/* we don't activate the pool yet, this will be done by downstream after it
* has configured the pool. If downstream does not want our pool we will
* activate it when we render into it */
glimage_sink->pool = newpool;
/* unref the old sink */
if (oldpool) {
/* we don't deactivate, some elements might still be using it, it will
* be deactivated when the last ref is gone */
gst_object_unref (oldpool);
}
if (glimage_sink->upload)
gst_object_unref (glimage_sink->upload);
glimage_sink->upload = gst_gl_upload_new (glimage_sink->context);
gst_gl_upload_set_format (glimage_sink->upload, &vinfo);
return TRUE;
}
gboolean
gst_gl_mixer_process_textures (GstGLMixer * mix, GstBuffer * outbuf)
{
guint i;
GList *walk;
guint out_tex;
gboolean res = TRUE;
guint array_index = 0;
GstVideoFrame out_frame;
gboolean out_gl_wrapped = FALSE;
GstElement *element = GST_ELEMENT (mix);
GstVideoAggregator *vagg = GST_VIDEO_AGGREGATOR (mix);
GstGLMixerClass *mix_class = GST_GL_MIXER_GET_CLASS (mix);
GstGLMixerPrivate *priv = mix->priv;
GST_TRACE ("Processing buffers");
if (!gst_video_frame_map (&out_frame, &vagg->info, outbuf,
GST_MAP_WRITE | GST_MAP_GL)) {
return FALSE;
}
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 = mix->out_tex_id;;
if (!mix->download)
mix->download = gst_gl_download_new (mix->context);
gst_gl_download_set_format (mix->download, &out_frame.info);
out_gl_wrapped = TRUE;
}
GST_OBJECT_LOCK (mix);
walk = element->sinkpads;
i = mix->frames->len;
g_ptr_array_set_size (mix->frames, element->numsinkpads);
for (; i < element->numsinkpads; i++)
mix->frames->pdata[i] = g_slice_new0 (GstGLMixerFrameData);
while (walk) {
GstGLMixerPad *pad = GST_GL_MIXER_PAD (walk->data);
GstVideoAggregatorPad *vaggpad = walk->data;
GstGLMixerFrameData *frame;
frame = g_ptr_array_index (mix->frames, array_index);
frame->pad = pad;
frame->texture = 0;
walk = g_list_next (walk);
if (vaggpad->buffer != NULL) {
guint in_tex;
if (!pad->upload) {
pad->upload = gst_gl_upload_new (mix->context);
gst_gl_upload_set_format (pad->upload, &vaggpad->info);
}
if (!gst_gl_upload_perform_with_buffer (pad->upload,
vaggpad->buffer, &in_tex)) {
++array_index;
pad->mapped = FALSE;
continue;
}
pad->mapped = TRUE;
frame->texture = in_tex;
}
++array_index;
}
g_mutex_lock (&priv->gl_resource_lock);
if (!priv->gl_resource_ready)
g_cond_wait (&priv->gl_resource_cond, &priv->gl_resource_lock);
if (!priv->gl_resource_ready) {
g_mutex_unlock (&priv->gl_resource_lock);
GST_ERROR_OBJECT (mix,
"fbo used to render can't be created, do not run process_textures");
res = FALSE;
goto out;
}
mix_class->process_textures (mix, mix->frames, out_tex);
g_mutex_unlock (&priv->gl_resource_lock);
if (out_gl_wrapped) {
if (!gst_gl_download_perform_with_data (mix->download, out_tex,
out_frame.data)) {
GST_ELEMENT_ERROR (mix, RESOURCE, NOT_FOUND, ("%s",
"Failed to download video frame"), (NULL));
res = FALSE;
goto out;
}
}
out:
i = 0;
walk = GST_ELEMENT (mix)->sinkpads;
while (walk) {
GstGLMixerPad *pad = GST_GL_MIXER_PAD (walk->data);
if (pad->mapped)
gst_gl_upload_release_buffer (pad->upload);
pad->mapped = FALSE;
walk = g_list_next (walk);
i++;
}
GST_OBJECT_UNLOCK (mix);
gst_video_frame_unmap (&out_frame);
return res;
}
/**
* gst_gl_upload_perform_with_buffer:
* @upload: a #GstGLUpload
* @buffer: a #GstBuffer
* @tex_id: resulting texture
*
* Uploads @buffer to the texture given by @tex_id. @tex_id is valid
* until gst_gl_upload_release_buffer() is called.
*
* Returns: whether the upload was successful
*/
gboolean
gst_gl_upload_perform_with_buffer (GstGLUpload * upload, GstBuffer * buffer,
guint * tex_id)
{
GstMemory *mem;
GstVideoGLTextureUploadMeta *gl_tex_upload_meta;
guint texture_ids[] = { 0, 0, 0, 0 };
gint i;
gboolean ret;
g_return_val_if_fail (upload != NULL, FALSE);
g_return_val_if_fail (buffer != NULL, FALSE);
g_return_val_if_fail (tex_id != NULL, FALSE);
g_return_val_if_fail (gst_buffer_n_memory (buffer) > 0, FALSE);
gst_gl_upload_release_buffer (upload);
/* GstGLMemory */
mem = gst_buffer_peek_memory (buffer, 0);
if (gst_is_gl_memory (mem)) {
if (GST_VIDEO_INFO_FORMAT (&upload->in_info) == GST_VIDEO_FORMAT_RGBA) {
GstMapInfo map_info;
gst_memory_map (mem, &map_info, GST_MAP_READ | GST_MAP_GL);
gst_memory_unmap (mem, &map_info);
*tex_id = ((GstGLMemory *) mem)->tex_id;
return TRUE;
}
GST_LOG_OBJECT (upload, "Attempting upload with GstGLMemory");
for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&upload->in_info); i++) {
upload->in_tex[i] = (GstGLMemory *) gst_buffer_peek_memory (buffer, i);
}
ret = _upload_memory (upload);
*tex_id = upload->out_tex->tex_id;
for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&upload->in_info); i++) {
upload->in_tex[i] = NULL;
}
return ret;
}
#if GST_GL_HAVE_PLATFORM_EGL
if (!upload->priv->tex_id && gst_is_egl_image_memory (mem))
gst_gl_context_gen_texture (upload->context, &upload->priv->tex_id,
GST_VIDEO_FORMAT_RGBA, 0, 0);
#endif
if (!upload->priv->tex_id)
gst_gl_context_gen_texture (upload->context, &upload->priv->tex_id,
GST_VIDEO_FORMAT_RGBA, GST_VIDEO_INFO_WIDTH (&upload->in_info),
GST_VIDEO_INFO_HEIGHT (&upload->in_info));
/* GstVideoGLTextureUploadMeta */
gl_tex_upload_meta = gst_buffer_get_video_gl_texture_upload_meta (buffer);
if (gl_tex_upload_meta) {
GST_LOG_OBJECT (upload, "Attempting upload with "
"GstVideoGLTextureUploadMeta");
texture_ids[0] = upload->priv->tex_id;
if (!gst_gl_upload_perform_with_gl_texture_upload_meta (upload,
gl_tex_upload_meta, texture_ids)) {
GST_DEBUG_OBJECT (upload, "Upload with GstVideoGLTextureUploadMeta "
"failed");
} else {
upload->priv->mapped = FALSE;
*tex_id = upload->priv->tex_id;
return TRUE;
}
}
GST_LOG_OBJECT (upload, "Attempting upload with raw data");
/* GstVideoMeta map */
if (!gst_video_frame_map (&upload->priv->frame, &upload->in_info, buffer,
GST_MAP_READ)) {
GST_ERROR_OBJECT (upload, "Failed to map memory");
return FALSE;
}
upload->priv->mapped = TRUE;
/* update the video info from the one updated by frame_map using video meta */
gst_gl_upload_set_format (upload, &upload->priv->frame.info);
if (!gst_gl_upload_perform_with_data (upload, tex_id,
upload->priv->frame.data)) {
return FALSE;
}
return TRUE;
}
