| /* Generic video mixer plugin |
| * |
| * GStreamer |
| * Copyright (C) 2009 Julien Isorce <julien.isorce@gmail.com> |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public |
| * License along with this library; if not, write to the |
| * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| #ifdef HAVE_CONFIG_H |
| #include "config.h" |
| #endif |
| |
| #include <gst/gst.h> |
| #include <gst/video/video.h> |
| |
| #include "gstglmixer.h" |
| |
| #if GST_GL_HAVE_PLATFORM_EGL |
| #include <gst/gl/egl/gsteglimagememory.h> |
| #endif |
| |
| #define gst_gl_mixer_parent_class parent_class |
| G_DEFINE_ABSTRACT_TYPE (GstGLMixer, gst_gl_mixer, GST_TYPE_GL_BASE_MIXER); |
| |
| #define GST_CAT_DEFAULT gst_gl_mixer_debug |
| GST_DEBUG_CATEGORY (gst_gl_mixer_debug); |
| |
| static void gst_gl_mixer_pad_get_property (GObject * object, guint prop_id, |
| GValue * value, GParamSpec * pspec); |
| static void gst_gl_mixer_pad_set_property (GObject * object, guint prop_id, |
| const GValue * value, GParamSpec * pspec); |
| static void gst_gl_mixer_pad_finalize (GObject * object); |
| |
| enum |
| { |
| PROP_PAD_0 |
| }; |
| |
| #define GST_GL_MIXER_GET_PRIVATE(obj) \ |
| (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GST_TYPE_GL_MIXER, GstGLMixerPrivate)) |
| |
| struct _GstGLMixerPrivate |
| { |
| gboolean negotiated; |
| |
| gboolean gl_resource_ready; |
| GMutex gl_resource_lock; |
| GCond gl_resource_cond; |
| }; |
| |
| G_DEFINE_TYPE (GstGLMixerPad, gst_gl_mixer_pad, GST_TYPE_GL_BASE_MIXER_PAD); |
| |
| static void |
| gst_gl_mixer_pad_class_init (GstGLMixerPadClass * klass) |
| { |
| GObjectClass *gobject_class = (GObjectClass *) klass; |
| GstVideoAggregatorPadClass *vaggpad_class = |
| (GstVideoAggregatorPadClass *) klass; |
| |
| gobject_class->set_property = gst_gl_mixer_pad_set_property; |
| gobject_class->get_property = gst_gl_mixer_pad_get_property; |
| |
| gobject_class->finalize = gst_gl_mixer_pad_finalize; |
| |
| vaggpad_class->set_info = NULL; |
| vaggpad_class->prepare_frame = NULL; |
| vaggpad_class->clean_frame = NULL; |
| } |
| |
| static void |
| gst_gl_mixer_pad_finalize (GObject * object) |
| { |
| G_OBJECT_CLASS (gst_gl_mixer_pad_parent_class)->finalize (object); |
| } |
| |
| static void |
| gst_gl_mixer_pad_get_property (GObject * object, guint prop_id, |
| GValue * value, GParamSpec * pspec) |
| { |
| switch (prop_id) { |
| default: |
| G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
| break; |
| } |
| } |
| |
| static void |
| gst_gl_mixer_pad_set_property (GObject * object, guint prop_id, |
| const GValue * value, GParamSpec * pspec) |
| { |
| switch (prop_id) { |
| default: |
| G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
| break; |
| } |
| } |
| |
| static gboolean |
| _negotiated_caps (GstVideoAggregator * vagg, GstCaps * caps) |
| { |
| GstGLMixer *mix = GST_GL_MIXER (vagg); |
| gboolean ret; |
| |
| mix->priv->negotiated = TRUE; |
| |
| gst_caps_replace (&mix->out_caps, caps); |
| |
| ret = GST_VIDEO_AGGREGATOR_CLASS (parent_class)->negotiated_caps (vagg, caps); |
| |
| return ret; |
| } |
| |
| static gboolean |
| gst_gl_mixer_propose_allocation (GstGLBaseMixer * base_mix, |
| GstGLBaseMixerPad * base_pad, GstQuery * decide_query, GstQuery * query) |
| { |
| GstGLMixer *mix = GST_GL_MIXER (base_mix); |
| GstGLContext *context = base_mix->context; |
| GstBufferPool *pool = NULL; |
| GstStructure *config; |
| GstCaps *caps; |
| guint size = 0; |
| gboolean need_pool; |
| |
| gst_query_parse_allocation (query, &caps, &need_pool); |
| |
| if (caps == NULL) |
| goto no_caps; |
| |
| if (need_pool) { |
| GstVideoInfo info; |
| |
| if (!gst_video_info_from_caps (&info, caps)) |
| goto invalid_caps; |
| |
| GST_DEBUG_OBJECT (mix, "create new pool"); |
| pool = gst_gl_buffer_pool_new (context); |
| |
| /* 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; |
| } |
| |
| if (pool) { |
| gst_query_add_allocation_pool (query, pool, size, 1, 0); |
| gst_object_unref (pool); |
| } |
| |
| /* we also support various metadata */ |
| if (context->gl_vtable->FenceSync) |
| gst_query_add_allocation_meta (query, GST_GL_SYNC_META_API_TYPE, 0); |
| |
| return TRUE; |
| |
| /* ERRORS */ |
| no_caps: |
| { |
| GST_DEBUG_OBJECT (mix, "no caps specified"); |
| return FALSE; |
| } |
| invalid_caps: |
| { |
| GST_DEBUG_OBJECT (mix, "invalid caps specified"); |
| return FALSE; |
| } |
| config_failed: |
| { |
| GST_DEBUG_OBJECT (mix, "failed setting config"); |
| return FALSE; |
| } |
| } |
| |
| static gboolean |
| gst_gl_mixer_pad_sink_acceptcaps (GstPad * pad, GstGLMixer * mix, |
| GstCaps * caps) |
| { |
| gboolean ret; |
| GstCaps *template_caps; |
| |
| GST_DEBUG_OBJECT (pad, "try accept caps of %" GST_PTR_FORMAT, caps); |
| |
| template_caps = gst_pad_get_pad_template_caps (pad); |
| template_caps = gst_caps_make_writable (template_caps); |
| |
| ret = gst_caps_can_intersect (caps, template_caps); |
| GST_DEBUG_OBJECT (pad, "%saccepted caps %" GST_PTR_FORMAT, |
| (ret ? "" : "not "), caps); |
| gst_caps_unref (template_caps); |
| |
| return ret; |
| } |
| |
| /* copies the given caps */ |
| static GstCaps * |
| _update_caps (GstVideoAggregator * vagg, GstCaps * caps) |
| { |
| return gst_gl_caps_replace_all_caps_features (caps, |
| GST_CAPS_FEATURE_MEMORY_GL_MEMORY); |
| } |
| |
| static GstCaps * |
| gst_gl_mixer_pad_sink_getcaps (GstPad * pad, GstGLMixer * mix, GstCaps * filter) |
| { |
| GstCaps *sinkcaps; |
| GstCaps *template_caps; |
| GstCaps *filtered_caps; |
| GstCaps *returned_caps; |
| gboolean had_current_caps = TRUE; |
| |
| template_caps = gst_pad_get_pad_template_caps (pad); |
| |
| sinkcaps = gst_pad_get_current_caps (pad); |
| if (sinkcaps == NULL) { |
| had_current_caps = FALSE; |
| sinkcaps = template_caps; |
| } else { |
| sinkcaps = gst_caps_merge (sinkcaps, template_caps); |
| } |
| |
| filtered_caps = sinkcaps; |
| if (filter) |
| filtered_caps = gst_caps_intersect (sinkcaps, filter); |
| returned_caps = gst_caps_intersect (filtered_caps, template_caps); |
| |
| if (filter) |
| gst_caps_unref (filtered_caps); |
| if (had_current_caps) |
| gst_caps_unref (template_caps); |
| |
| GST_DEBUG_OBJECT (pad, "returning %" GST_PTR_FORMAT, returned_caps); |
| |
| return returned_caps; |
| } |
| |
| static gboolean |
| gst_gl_mixer_sink_query (GstAggregator * agg, GstAggregatorPad * bpad, |
| GstQuery * query) |
| { |
| gboolean ret = FALSE; |
| GstGLMixer *mix = GST_GL_MIXER (agg); |
| |
| GST_TRACE ("QUERY %" GST_PTR_FORMAT, query); |
| |
| switch (GST_QUERY_TYPE (query)) { |
| case GST_QUERY_CAPS: |
| { |
| GstCaps *filter, *caps; |
| |
| gst_query_parse_caps (query, &filter); |
| caps = gst_gl_mixer_pad_sink_getcaps (GST_PAD (bpad), mix, filter); |
| gst_query_set_caps_result (query, caps); |
| gst_caps_unref (caps); |
| ret = TRUE; |
| break; |
| } |
| case GST_QUERY_ACCEPT_CAPS: |
| { |
| GstCaps *caps; |
| |
| gst_query_parse_accept_caps (query, &caps); |
| ret = gst_gl_mixer_pad_sink_acceptcaps (GST_PAD (bpad), mix, caps); |
| gst_query_set_accept_caps_result (query, ret); |
| ret = TRUE; |
| break; |
| } |
| default: |
| ret = GST_AGGREGATOR_CLASS (parent_class)->sink_query (agg, bpad, query); |
| break; |
| } |
| |
| return ret; |
| } |
| |
| static void |
| gst_gl_mixer_pad_init (GstGLMixerPad * mixerpad) |
| { |
| } |
| |
| /* GLMixer signals and args */ |
| enum |
| { |
| /* FILL ME */ |
| LAST_SIGNAL |
| }; |
| |
| enum |
| { |
| PROP_0, |
| }; |
| |
| static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src", |
| GST_PAD_SRC, |
| GST_PAD_ALWAYS, |
| GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE_WITH_FEATURES |
| (GST_CAPS_FEATURE_MEMORY_GL_MEMORY, |
| "RGBA")) |
| ); |
| |
| static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink_%u", |
| GST_PAD_SINK, |
| GST_PAD_REQUEST, |
| GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE_WITH_FEATURES |
| (GST_CAPS_FEATURE_MEMORY_GL_MEMORY, |
| "RGBA")) |
| ); |
| |
| static gboolean gst_gl_mixer_src_query (GstAggregator * agg, GstQuery * query); |
| static GstFlowReturn gst_gl_mixer_get_output_buffer (GstVideoAggregator * |
| videoaggregator, GstBuffer ** outbuf); |
| static gboolean gst_gl_mixer_stop (GstAggregator * agg); |
| static gboolean gst_gl_mixer_start (GstAggregator * agg); |
| |
| static GstFlowReturn |
| gst_gl_mixer_aggregate_frames (GstVideoAggregator * vagg, |
| GstBuffer * outbuffer); |
| |
| static void gst_gl_mixer_set_property (GObject * object, guint prop_id, |
| const GValue * value, GParamSpec * pspec); |
| static void gst_gl_mixer_get_property (GObject * object, guint prop_id, |
| GValue * value, GParamSpec * pspec); |
| |
| static gboolean gst_gl_mixer_decide_allocation (GstGLBaseMixer * mix, |
| GstQuery * query); |
| |
| static void gst_gl_mixer_finalize (GObject * object); |
| |
| static void |
| gst_gl_mixer_class_init (GstGLMixerClass * klass) |
| { |
| GObjectClass *gobject_class = (GObjectClass *) klass; |
| GstElementClass *element_class = GST_ELEMENT_CLASS (klass); |
| GstVideoAggregatorClass *videoaggregator_class = |
| (GstVideoAggregatorClass *) klass; |
| GstAggregatorClass *agg_class = (GstAggregatorClass *) klass; |
| GstGLBaseMixerClass *mix_class = GST_GL_BASE_MIXER_CLASS (klass);; |
| |
| GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT, "glmixer", 0, "OpenGL mixer"); |
| |
| g_type_class_add_private (klass, sizeof (GstGLMixerPrivate)); |
| |
| gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_gl_mixer_finalize); |
| |
| gobject_class->get_property = gst_gl_mixer_get_property; |
| gobject_class->set_property = gst_gl_mixer_set_property; |
| |
| gst_element_class_add_pad_template (element_class, |
| gst_static_pad_template_get (&src_factory)); |
| gst_element_class_add_pad_template (element_class, |
| gst_static_pad_template_get (&sink_factory)); |
| |
| agg_class->sinkpads_type = GST_TYPE_GL_MIXER_PAD; |
| agg_class->sink_query = gst_gl_mixer_sink_query; |
| agg_class->src_query = gst_gl_mixer_src_query; |
| agg_class->stop = gst_gl_mixer_stop; |
| agg_class->start = gst_gl_mixer_start; |
| |
| videoaggregator_class->aggregate_frames = gst_gl_mixer_aggregate_frames; |
| videoaggregator_class->get_output_buffer = gst_gl_mixer_get_output_buffer; |
| videoaggregator_class->negotiated_caps = _negotiated_caps; |
| videoaggregator_class->update_caps = _update_caps; |
| videoaggregator_class->find_best_format = NULL; |
| |
| mix_class->propose_allocation = gst_gl_mixer_propose_allocation; |
| mix_class->decide_allocation = gst_gl_mixer_decide_allocation; |
| |
| /* Register the pad class */ |
| g_type_class_ref (GST_TYPE_GL_MIXER_PAD); |
| |
| klass->set_caps = NULL; |
| } |
| |
| static void |
| gst_gl_mixer_reset (GstGLMixer * mix) |
| { |
| mix->priv->negotiated = FALSE; |
| } |
| |
| static void |
| gst_gl_mixer_init (GstGLMixer * mix) |
| { |
| mix->priv = GST_GL_MIXER_GET_PRIVATE (mix); |
| mix->array_buffers = 0; |
| mix->fbo = 0; |
| mix->depthbuffer = 0; |
| |
| mix->priv->gl_resource_ready = FALSE; |
| g_mutex_init (&mix->priv->gl_resource_lock); |
| g_cond_init (&mix->priv->gl_resource_cond); |
| /* initialize variables */ |
| gst_gl_mixer_reset (mix); |
| } |
| |
| static void |
| gst_gl_mixer_finalize (GObject * object) |
| { |
| GstGLMixer *mix = GST_GL_MIXER (object); |
| GstGLMixerPrivate *priv = mix->priv; |
| |
| g_mutex_clear (&priv->gl_resource_lock); |
| g_cond_clear (&priv->gl_resource_cond); |
| G_OBJECT_CLASS (parent_class)->finalize (object); |
| } |
| |
| static gboolean |
| gst_gl_mixer_query_caps (GstPad * pad, GstAggregator * agg, GstQuery * query) |
| { |
| GstCaps *filter, *current_caps, *retcaps, *template_caps; |
| |
| gst_query_parse_caps (query, &filter); |
| |
| template_caps = gst_pad_get_pad_template_caps (agg->srcpad); |
| |
| current_caps = gst_pad_get_current_caps (pad); |
| if (current_caps == NULL) |
| retcaps = gst_caps_ref (template_caps); |
| else { |
| retcaps = gst_caps_merge (current_caps, template_caps); |
| template_caps = NULL; |
| } |
| |
| if (filter) { |
| current_caps = |
| gst_caps_intersect_full (filter, retcaps, GST_CAPS_INTERSECT_FIRST); |
| gst_caps_unref (retcaps); |
| retcaps = current_caps; |
| } |
| |
| gst_query_set_caps_result (query, retcaps); |
| gst_caps_unref (retcaps); |
| |
| if (template_caps) |
| gst_caps_unref (template_caps); |
| |
| return TRUE; |
| } |
| |
| static gboolean |
| gst_gl_mixer_src_query (GstAggregator * agg, GstQuery * query) |
| { |
| gboolean res = FALSE; |
| |
| switch (GST_QUERY_TYPE (query)) { |
| case GST_QUERY_CAPS: |
| res = gst_gl_mixer_query_caps (agg->srcpad, agg, query); |
| break; |
| default: |
| res = GST_AGGREGATOR_CLASS (parent_class)->src_query (agg, query); |
| break; |
| } |
| |
| return res; |
| } |
| |
| static GstFlowReturn |
| gst_gl_mixer_get_output_buffer (GstVideoAggregator * videoaggregator, |
| GstBuffer ** outbuf) |
| { |
| GstGLMixer *mix = GST_GL_MIXER (videoaggregator); |
| GstBufferPool *pool; |
| GstFlowReturn ret; |
| |
| pool = |
| gst_gl_base_mixer_get_buffer_pool (GST_GL_BASE_MIXER (videoaggregator)); |
| |
| if (!pool) |
| return GST_FLOW_NOT_NEGOTIATED; |
| |
| if (!gst_buffer_pool_is_active (pool)) { |
| if (!gst_buffer_pool_set_active (pool, TRUE)) { |
| GST_ELEMENT_ERROR (mix, RESOURCE, SETTINGS, |
| ("failed to activate bufferpool"), ("failed to activate bufferpool")); |
| return GST_FLOW_ERROR; |
| } |
| } |
| |
| ret = gst_buffer_pool_acquire_buffer (pool, outbuf, NULL); |
| gst_object_unref (pool); |
| |
| return ret; |
| } |
| |
| static gboolean |
| gst_gl_mixer_decide_allocation (GstGLBaseMixer * base_mix, GstQuery * query) |
| { |
| GstGLMixer *mix = GST_GL_MIXER (base_mix); |
| GstGLMixerClass *mixer_class = GST_GL_MIXER_GET_CLASS (mix); |
| GstVideoAggregator *vagg = GST_VIDEO_AGGREGATOR (mix); |
| GstGLContext *context = base_mix->context; |
| GstBufferPool *pool = NULL; |
| GstStructure *config; |
| GstCaps *caps; |
| guint min, max, size; |
| gboolean update_pool; |
| GError *error = NULL; |
| guint out_width, out_height; |
| |
| out_width = GST_VIDEO_INFO_WIDTH (&vagg->info); |
| out_height = GST_VIDEO_INFO_HEIGHT (&vagg->info); |
| |
| g_mutex_lock (&mix->priv->gl_resource_lock); |
| mix->priv->gl_resource_ready = FALSE; |
| if (mix->fbo) { |
| gst_gl_context_del_fbo (context, mix->fbo, mix->depthbuffer); |
| mix->fbo = 0; |
| mix->depthbuffer = 0; |
| } |
| |
| if (!gst_gl_context_gen_fbo (context, out_width, out_height, |
| &mix->fbo, &mix->depthbuffer)) { |
| g_cond_signal (&mix->priv->gl_resource_cond); |
| g_mutex_unlock (&mix->priv->gl_resource_lock); |
| goto context_error; |
| } |
| |
| gst_query_parse_allocation (query, &caps, NULL); |
| |
| if (mixer_class->set_caps) |
| mixer_class->set_caps (mix, caps); |
| |
| mix->priv->gl_resource_ready = TRUE; |
| g_cond_signal (&mix->priv->gl_resource_cond); |
| g_mutex_unlock (&mix->priv->gl_resource_lock); |
| |
| if (gst_query_get_n_allocation_pools (query) > 0) { |
| gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max); |
| |
| update_pool = TRUE; |
| } else { |
| GstVideoInfo vinfo; |
| |
| gst_video_info_init (&vinfo); |
| gst_video_info_from_caps (&vinfo, caps); |
| size = vinfo.size; |
| min = max = 0; |
| update_pool = FALSE; |
| } |
| |
| if (!pool) |
| pool = gst_gl_buffer_pool_new (context); |
| 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_set_config (pool, config); |
| |
| if (update_pool) |
| gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max); |
| else |
| gst_query_add_allocation_pool (query, pool, size, min, max); |
| |
| gst_object_unref (pool); |
| |
| return TRUE; |
| |
| context_error: |
| { |
| GST_ELEMENT_ERROR (mix, RESOURCE, NOT_FOUND, ("%s", error->message), |
| (NULL)); |
| return FALSE; |
| } |
| } |
| |
| 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; |
| 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; |
| } |
| |
| out_tex = *(guint *) out_frame.data[0]; |
| |
| 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) { |
| 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)); |
| |
| sync_meta = gst_buffer_get_gl_sync_meta (vaggpad->buffer); |
| if (sync_meta) |
| gst_gl_sync_meta_wait (sync_meta, GST_GL_BASE_MIXER (mix)->context); |
| |
| if (gst_video_frame_map (&gl_frame, &gl_info, vaggpad->buffer, |
| GST_MAP_READ | GST_MAP_GL)) { |
| frame->texture = *(guint *) gl_frame.data[0]; |
| gst_video_frame_unmap (&gl_frame); |
| } |
| } |
| |
| ++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); |
| |
| out: |
| GST_OBJECT_UNLOCK (mix); |
| |
| gst_video_frame_unmap (&out_frame); |
| |
| return res; |
| } |
| |
| static gboolean |
| gst_gl_mixer_process_buffers (GstGLMixer * mix, GstBuffer * outbuf) |
| { |
| GList *walk; |
| guint i, array_index = 0; |
| GstElement *element = GST_ELEMENT (mix); |
| GstGLMixerClass *mix_class = GST_GL_MIXER_GET_CLASS (mix); |
| |
| GST_OBJECT_LOCK (mix); |
| walk = GST_ELEMENT (mix)->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) { /* We walk with this list because it's ordered */ |
| GstVideoAggregatorPad *vaggpad = walk->data; |
| |
| walk = g_list_next (walk); |
| |
| if (vaggpad->buffer != NULL) { |
| /* put buffer into array */ |
| mix->array_buffers->pdata[array_index] = vaggpad->buffer; |
| } |
| ++array_index; |
| } |
| GST_OBJECT_UNLOCK (mix); |
| |
| return mix_class->process_buffers (mix, mix->array_buffers, outbuf); |
| } |
| |
| 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); |
| GstGLContext *context = GST_GL_BASE_MIXER (mix)->context; |
| 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, context); |
| |
| return res ? GST_FLOW_OK : GST_FLOW_ERROR; |
| } |
| |
| static void |
| gst_gl_mixer_get_property (GObject * object, |
| guint prop_id, GValue * value, GParamSpec * pspec) |
| { |
| switch (prop_id) { |
| default: |
| G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
| break; |
| } |
| } |
| |
| static void |
| gst_gl_mixer_set_property (GObject * object, |
| guint prop_id, const GValue * value, GParamSpec * pspec) |
| { |
| switch (prop_id) { |
| default: |
| G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
| break; |
| } |
| } |
| |
| static void |
| _free_glmixer_frame_data (GstGLMixerFrameData * frame) |
| { |
| g_slice_free1 (sizeof (GstGLMixerFrameData), frame); |
| } |
| |
| static gboolean |
| gst_gl_mixer_start (GstAggregator * agg) |
| { |
| guint i; |
| GstGLMixer *mix = GST_GL_MIXER (agg); |
| GstElement *element = GST_ELEMENT (agg); |
| |
| GST_OBJECT_LOCK (mix); |
| mix->array_buffers = g_ptr_array_new_full (element->numsinkpads, |
| (GDestroyNotify) _free_glmixer_frame_data); |
| mix->frames = g_ptr_array_new_full (element->numsinkpads, NULL); |
| |
| g_ptr_array_set_size (mix->array_buffers, element->numsinkpads); |
| g_ptr_array_set_size (mix->frames, element->numsinkpads); |
| |
| for (i = 0; i < element->numsinkpads; i++) |
| mix->frames->pdata[i] = g_slice_new0 (GstGLMixerFrameData); |
| |
| GST_OBJECT_UNLOCK (mix); |
| |
| return GST_AGGREGATOR_CLASS (parent_class)->start (agg); |
| } |
| |
| static gboolean |
| gst_gl_mixer_stop (GstAggregator * agg) |
| { |
| GstGLMixer *mix = GST_GL_MIXER (agg); |
| GstGLMixerClass *mixer_class = GST_GL_MIXER_GET_CLASS (mix); |
| GstGLContext *context = GST_GL_BASE_MIXER (mix)->context; |
| |
| GST_OBJECT_LOCK (agg); |
| g_ptr_array_free (mix->frames, TRUE); |
| mix->frames = NULL; |
| g_ptr_array_free (mix->array_buffers, TRUE); |
| mix->array_buffers = NULL; |
| GST_OBJECT_UNLOCK (agg); |
| |
| if (mixer_class->reset) |
| mixer_class->reset (mix); |
| if (mix->fbo) { |
| gst_gl_context_del_fbo (context, mix->fbo, mix->depthbuffer); |
| mix->fbo = 0; |
| mix->depthbuffer = 0; |
| } |
| |
| gst_gl_mixer_reset (mix); |
| |
| return GST_AGGREGATOR_CLASS (parent_class)->stop (agg); |
| } |