/* GStreamer Editing Services * Copyright (C) 2009 Edward Hervey * 2009 Nokia Corporation * * 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., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ /** * SECTION:ges-timeline-pipeline * @short_description: Convenience #GstPipeline for editing. * * #GESTimelinePipeline allows developers to view and render #GESTimeline * in a simple fashion. * Its usage is inspired by the 'playbin' element from gst-plugins-base. */ #include #include #include "ges-internal.h" #include "ges-timeline-pipeline.h" #include "ges-screenshot.h" #define DEFAULT_TIMELINE_MODE TIMELINE_MODE_PREVIEW /* Structure corresponding to a timeline - sink link */ typedef struct { GESTrack *track; GstElement *tee; GstPad *srcpad; /* Timeline source pad */ GstPad *playsinkpad; GstPad *encodebinpad; } OutputChain; G_DEFINE_TYPE (GESTimelinePipeline, ges_timeline_pipeline, GST_TYPE_PIPELINE); struct _GESTimelinePipelinePrivate { GESTimeline *timeline; GstElement *playsink; GstElement *encodebin; /* Note : urisink is only created when a URI has been provided */ GstElement *urisink; GESPipelineFlags mode; GList *chains; GstEncodingProfile *profile; }; static GstStateChangeReturn ges_timeline_pipeline_change_state (GstElement * element, GstStateChange transition); static OutputChain *get_output_chain_for_track (GESTimelinePipeline * self, GESTrack * track); static OutputChain *new_output_chain_for_track (GESTimelinePipeline * self, GESTrack * track); static gboolean play_sink_multiple_seeks_send_event (GstElement * element, GstEvent * event); static void ges_timeline_pipeline_dispose (GObject * object) { GESTimelinePipeline *self = GES_TIMELINE_PIPELINE (object); if (self->priv->playsink) { if (self->priv->mode & (TIMELINE_MODE_PREVIEW)) gst_bin_remove (GST_BIN (object), self->priv->playsink); else gst_object_unref (self->priv->playsink); self->priv->playsink = NULL; } if (self->priv->encodebin) { if (self->priv->mode & (TIMELINE_MODE_RENDER | TIMELINE_MODE_SMART_RENDER)) gst_bin_remove (GST_BIN (object), self->priv->encodebin); else gst_object_unref (self->priv->encodebin); self->priv->encodebin = NULL; } if (self->priv->profile) { gst_encoding_profile_unref (self->priv->profile); self->priv->profile = NULL; } G_OBJECT_CLASS (ges_timeline_pipeline_parent_class)->dispose (object); } static void ges_timeline_pipeline_class_init (GESTimelinePipelineClass * klass) { GObjectClass *object_class = G_OBJECT_CLASS (klass); GstElementClass *element_class = GST_ELEMENT_CLASS (klass); g_type_class_add_private (klass, sizeof (GESTimelinePipelinePrivate)); object_class->dispose = ges_timeline_pipeline_dispose; element_class->change_state = GST_DEBUG_FUNCPTR (ges_timeline_pipeline_change_state); /* TODO : Add state_change handlers * Don't change state if we don't have a timeline */ } static void ges_timeline_pipeline_init (GESTimelinePipeline * self) { GstElementClass *playsinkclass; GST_INFO_OBJECT (self, "Creating new 'playsink'"); self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self, GES_TYPE_TIMELINE_PIPELINE, GESTimelinePipelinePrivate); self->priv->playsink = gst_element_factory_make ("playsink", "internal-sinks"); self->priv->encodebin = gst_element_factory_make ("encodebin", "internal-encodebin"); /* Limit encodebin buffering to 1 buffer since we know the various * stream fed to it are decoupled already */ g_object_set (self->priv->encodebin, "queue-buffers-max", (guint32) 1, "queue-bytes-max", (guint32) 0, "queue-time-max", (guint64) 0, "avoid-reencoding", TRUE, NULL); if (G_UNLIKELY (self->priv->playsink == NULL)) goto no_playsink; if (G_UNLIKELY (self->priv->encodebin == NULL)) goto no_encodebin; /* HACK : Intercept events going through playsink */ playsinkclass = GST_ELEMENT_GET_CLASS (self->priv->playsink); /* Replace playsink's GstBin::send_event with our own */ playsinkclass->send_event = play_sink_multiple_seeks_send_event; ges_timeline_pipeline_set_mode (self, DEFAULT_TIMELINE_MODE); return; no_playsink: { GST_ERROR_OBJECT (self, "Can't create playsink instance !"); return; } no_encodebin: { GST_ERROR_OBJECT (self, "Can't create encodebin instance !"); return; } } /** * ges_timeline_pipeline_new: * * Creates a new conveninence #GESTimelinePipeline. * * Returns: the new #GESTimelinePipeline. */ GESTimelinePipeline * ges_timeline_pipeline_new (void) { return g_object_new (GES_TYPE_TIMELINE_PIPELINE, NULL); } #define TRACK_COMPATIBLE_PROFILE(tracktype, profile) \ ( (GST_IS_ENCODING_AUDIO_PROFILE (profile) && (tracktype) == GES_TRACK_TYPE_AUDIO) || \ (GST_IS_ENCODING_VIDEO_PROFILE (profile) && (tracktype) == GES_TRACK_TYPE_VIDEO)) static gboolean ges_timeline_pipeline_update_caps (GESTimelinePipeline * self) { GList *ltrack, *tracks, *lstream; if (!self->priv->profile) return TRUE; GST_DEBUG ("Updating track caps"); tracks = ges_timeline_get_tracks (self->priv->timeline); /* Take each stream of the encoding profile and find a matching * track to set the caps on */ for (ltrack = tracks; ltrack; ltrack = ltrack->next) { GESTrack *track = (GESTrack *) ltrack->data; GList *allstreams; allstreams = (GList *) gst_encoding_container_profile_get_profiles ( (GstEncodingContainerProfile *) self->priv->profile); /* Find a matching stream setting */ for (lstream = allstreams; lstream; lstream = lstream->next) { GstEncodingProfile *prof = (GstEncodingProfile *) lstream->data; if (TRACK_COMPATIBLE_PROFILE (track->type, prof)) { if (self->priv->mode == TIMELINE_MODE_SMART_RENDER) { GstCaps *ocaps, *rcaps; GST_DEBUG ("Smart Render mode, setting input caps"); ocaps = gst_encoding_profile_get_input_caps (prof); if (track->type == GES_TRACK_TYPE_AUDIO) rcaps = gst_caps_from_string ("audio/x-raw-int;audio/x-raw-float"); else rcaps = gst_caps_from_string ("video/x-raw-yuv;video/x-raw-rgb"); gst_caps_append (ocaps, rcaps); ges_track_set_caps (track, ocaps); } else { GstCaps *caps = NULL; /* Raw preview or rendering mode */ if (track->type == GES_TRACK_TYPE_VIDEO) caps = gst_caps_from_string ("video/x-raw-yuv;video/x-raw-rgb"); else if (track->type == GES_TRACK_TYPE_AUDIO) gst_caps_from_string ("audio/x-raw-int;audio/x-raw-float"); if (caps) { ges_track_set_caps (track, caps); gst_caps_unref (caps); } } break; } } g_object_unref (track); } if (tracks) g_list_free (tracks); GST_DEBUG ("Done updating caps"); return TRUE; } static GstStateChangeReturn ges_timeline_pipeline_change_state (GstElement * element, GstStateChange transition) { GESTimelinePipeline *self; GstStateChangeReturn ret; self = GES_TIMELINE_PIPELINE (element); switch (transition) { case GST_STATE_CHANGE_READY_TO_PAUSED: if (G_UNLIKELY (self->priv->timeline == NULL)) { GST_ERROR_OBJECT (element, "No GESTimeline set on the pipeline, cannot play !"); ret = GST_STATE_CHANGE_FAILURE; goto done; } if (self-> priv->mode & (TIMELINE_MODE_RENDER | TIMELINE_MODE_SMART_RENDER)) GST_DEBUG ("rendering => Updating pipeline caps"); if (!ges_timeline_pipeline_update_caps (self)) { GST_ERROR_OBJECT (element, "Error setting the caps for rendering"); ret = GST_STATE_CHANGE_FAILURE; goto done; } /* Set caps on all tracks according to profile if present */ /* FIXME : Add a new SMART_RENDER mode to avoid decoding */ break; default: break; } ret = GST_ELEMENT_CLASS (ges_timeline_pipeline_parent_class)->change_state (element, transition); done: return ret; } static OutputChain * new_output_chain_for_track (GESTimelinePipeline * self, GESTrack * track) { OutputChain *chain; chain = g_new0 (OutputChain, 1); chain->track = track; return chain; } static OutputChain * get_output_chain_for_track (GESTimelinePipeline * self, GESTrack * track) { GList *tmp; for (tmp = self->priv->chains; tmp; tmp = tmp->next) { OutputChain *chain = (OutputChain *) tmp->data; if (chain->track == track) return chain; } return NULL; } /* Fetches a compatible pad on the target element which isn't already * linked */ static GstPad * get_compatible_unlinked_pad (GstElement * element, GstPad * pad) { GstPad *res = NULL; GstIterator *pads; gboolean done = FALSE; GstCaps *srccaps; if (G_UNLIKELY (pad == NULL)) goto no_pad; GST_DEBUG ("element : %s, pad %s:%s", GST_ELEMENT_NAME (element), GST_DEBUG_PAD_NAME (pad)); if (GST_PAD_DIRECTION (pad) == GST_PAD_SRC) pads = gst_element_iterate_sink_pads (element); else pads = gst_element_iterate_src_pads (element); srccaps = gst_pad_get_caps_reffed (pad); GST_DEBUG ("srccaps %" GST_PTR_FORMAT, srccaps); while (!done) { gpointer padptr; switch (gst_iterator_next (pads, &padptr)) { case GST_ITERATOR_OK: { GstPad *testpad = (GstPad *) padptr; if (gst_pad_is_linked (testpad)) { gst_object_unref (testpad); } else { GstCaps *sinkcaps = gst_pad_get_caps_reffed (testpad); GST_DEBUG ("sinkccaps %" GST_PTR_FORMAT, sinkcaps); if (gst_caps_can_intersect (srccaps, sinkcaps)) { res = testpad; done = TRUE; } else gst_object_unref (testpad); gst_caps_unref (sinkcaps); } } break; case GST_ITERATOR_DONE: case GST_ITERATOR_ERROR: done = TRUE; break; case GST_ITERATOR_RESYNC: gst_iterator_resync (pads); break; } } gst_iterator_free (pads); gst_caps_unref (srccaps); return res; no_pad: { GST_ERROR ("No pad to check against"); return NULL; } } static void pad_added_cb (GstElement * timeline, GstPad * pad, GESTimelinePipeline * self) { OutputChain *chain; GESTrack *track; GstPad *sinkpad; gboolean reconfigured = FALSE; GST_DEBUG_OBJECT (self, "new pad %s:%s , caps:%" GST_PTR_FORMAT, GST_DEBUG_PAD_NAME (pad), GST_PAD_CAPS (pad)); if (G_UNLIKELY (!(track = ges_timeline_get_track_for_pad (self->priv->timeline, pad)))) { GST_WARNING_OBJECT (self, "Couldn't find coresponding track !"); return; } /* Don't connect track if it's not going to be used */ if (track->type == GES_TRACK_TYPE_VIDEO && !(self->priv->mode & TIMELINE_MODE_PREVIEW_VIDEO) && !(self->priv->mode & TIMELINE_MODE_RENDER) && !(self->priv->mode & TIMELINE_MODE_SMART_RENDER)) { GST_DEBUG_OBJECT (self, "Video track... but we don't need it. Not linking"); } if (track->type == GES_TRACK_TYPE_AUDIO && !(self->priv->mode & TIMELINE_MODE_PREVIEW_AUDIO) && !(self->priv->mode & TIMELINE_MODE_RENDER) && !(self->priv->mode & TIMELINE_MODE_SMART_RENDER)) { GST_DEBUG_OBJECT (self, "Audio track... but we don't need it. Not linking"); } /* Get an existing chain or create it */ if (!(chain = get_output_chain_for_track (self, track))) chain = new_output_chain_for_track (self, track); chain->srcpad = pad; /* Adding tee */ chain->tee = gst_element_factory_make ("tee", NULL); gst_bin_add (GST_BIN_CAST (self), chain->tee); gst_element_sync_state_with_parent (chain->tee); /* Linking pad to tee */ sinkpad = gst_element_get_static_pad (chain->tee, "sink"); gst_pad_link_full (pad, sinkpad, GST_PAD_LINK_CHECK_NOTHING); gst_object_unref (sinkpad); /* Connect playsink */ if (self->priv->mode & TIMELINE_MODE_PREVIEW) { const gchar *sinkpad_name; GstPad *tmppad; GST_DEBUG_OBJECT (self, "Connecting to playsink"); switch (track->type) { case GES_TRACK_TYPE_VIDEO: sinkpad_name = "video_sink"; break; case GES_TRACK_TYPE_AUDIO: sinkpad_name = "audio_sink"; break; case GES_TRACK_TYPE_TEXT: sinkpad_name = "text_sink"; break; default: GST_WARNING_OBJECT (self, "Can't handle tracks of type %d yet", track->type); goto error; } /* Request a sinkpad from playsink */ if (G_UNLIKELY (!(sinkpad = gst_element_get_request_pad (self->priv->playsink, sinkpad_name)))) { GST_ERROR_OBJECT (self, "Couldn't get a pad from the playsink !"); goto error; } tmppad = gst_element_get_request_pad (chain->tee, "src%d"); if (G_UNLIKELY (gst_pad_link_full (tmppad, sinkpad, GST_PAD_LINK_CHECK_NOTHING) != GST_PAD_LINK_OK)) { GST_ERROR_OBJECT (self, "Couldn't link track pad to playsink"); gst_object_unref (tmppad); goto error; } gst_object_unref (tmppad); GST_DEBUG ("Reconfiguring playsink"); /* reconfigure playsink */ g_signal_emit_by_name (self->priv->playsink, "reconfigure", &reconfigured); GST_DEBUG ("'reconfigure' returned %d", reconfigured); /* We still hold a reference on the sinkpad */ chain->playsinkpad = sinkpad; } /* Connect to encodebin */ if (self->priv->mode & (TIMELINE_MODE_RENDER | TIMELINE_MODE_SMART_RENDER)) { GstPad *tmppad; GST_DEBUG_OBJECT (self, "Connecting to encodebin"); if (!chain->encodebinpad) { /* Check for unused static pads */ sinkpad = get_compatible_unlinked_pad (self->priv->encodebin, pad); if (sinkpad == NULL) { GstCaps *caps = gst_pad_get_caps_reffed (pad); /* If no compatible static pad is available, request a pad */ g_signal_emit_by_name (self->priv->encodebin, "request-pad", caps, &sinkpad); gst_caps_unref (caps); if (G_UNLIKELY (sinkpad == NULL)) { GST_ERROR_OBJECT (self, "Couldn't get a pad from encodebin !"); goto error; } } chain->encodebinpad = sinkpad; } tmppad = gst_element_get_request_pad (chain->tee, "src%d"); if (G_UNLIKELY (gst_pad_link_full (tmppad, chain->encodebinpad, GST_PAD_LINK_CHECK_NOTHING) != GST_PAD_LINK_OK)) { GST_WARNING_OBJECT (self, "Couldn't link track pad to playsink"); goto error; } gst_object_unref (tmppad); } /* If chain wasn't already present, insert it in list */ if (!get_output_chain_for_track (self, track)) self->priv->chains = g_list_append (self->priv->chains, chain); GST_DEBUG ("done"); return; error: { if (chain->tee) { gst_bin_remove (GST_BIN_CAST (self), chain->tee); } if (sinkpad) gst_object_unref (sinkpad); g_free (chain); } } static void pad_removed_cb (GstElement * timeline, GstPad * pad, GESTimelinePipeline * self) { OutputChain *chain; GESTrack *track; GstPad *peer; GST_DEBUG_OBJECT (self, "pad removed %s:%s", GST_DEBUG_PAD_NAME (pad)); if (G_UNLIKELY (!(track = ges_timeline_get_track_for_pad (self->priv->timeline, pad)))) { GST_WARNING_OBJECT (self, "Couldn't find coresponding track !"); return; } if (G_UNLIKELY (!(chain = get_output_chain_for_track (self, track)))) { GST_DEBUG_OBJECT (self, "Pad wasn't used"); return; } /* Unlink encodebin */ if (chain->encodebinpad) { peer = gst_pad_get_peer (chain->encodebinpad); gst_pad_unlink (peer, chain->encodebinpad); gst_object_unref (peer); gst_element_release_request_pad (self->priv->encodebin, chain->encodebinpad); } /* Unlink playsink */ if (chain->playsinkpad) { peer = gst_pad_get_peer (chain->playsinkpad); gst_pad_unlink (peer, chain->playsinkpad); gst_object_unref (peer); gst_element_release_request_pad (self->priv->playsink, chain->playsinkpad); gst_object_unref (chain->playsinkpad); } /* Unlike/remove tee */ peer = gst_element_get_static_pad (chain->tee, "sink"); gst_pad_unlink (pad, peer); gst_object_unref (peer); gst_element_set_state (chain->tee, GST_STATE_NULL); gst_bin_remove (GST_BIN (self), chain->tee); self->priv->chains = g_list_remove (self->priv->chains, chain); g_free (chain); GST_DEBUG ("done"); } /** * ges_timeline_pipeline_add_timeline: * @pipeline: a #GESTimelinePipeline * @timeline: the #GESTimeline to set on the @pipeline. * * Sets the timeline to use in this pipeline. * * The reference to the @timeline will be stolen by the @pipeline. * * Returns: TRUE if the @timeline could be successfully set on the @pipeline, * else FALSE. */ gboolean ges_timeline_pipeline_add_timeline (GESTimelinePipeline * pipeline, GESTimeline * timeline) { g_return_val_if_fail (pipeline->priv->timeline == NULL, FALSE); g_return_val_if_fail (timeline != NULL, FALSE); GST_DEBUG ("pipeline:%p, timeline:%p", timeline, pipeline); if (G_UNLIKELY (!gst_bin_add (GST_BIN_CAST (pipeline), GST_ELEMENT (timeline)))) { return FALSE; } pipeline->priv->timeline = timeline; /* Connect to pipeline */ g_signal_connect (timeline, "pad-added", (GCallback) pad_added_cb, pipeline); g_signal_connect (timeline, "pad-removed", (GCallback) pad_removed_cb, pipeline); return TRUE; } /** * ges_timeline_pipeline_set_render_settings: * @pipeline: a #GESTimelinePipeline * @output_uri: the URI to which the timeline will be rendered * @profile: the #GstEncodingProfile to use to render the timeline. * * Specify where the pipeline shall be rendered and with what settings. * * A copy of @profile and @output_uri will be done internally, the caller can * safely free those values afterwards. * * This method must be called before setting the pipeline mode to * #TIMELINE_MODE_RENDER * * Returns: %TRUE if the settings were aknowledged properly, else %FALSE */ gboolean ges_timeline_pipeline_set_render_settings (GESTimelinePipeline * pipeline, gchar * output_uri, GstEncodingProfile * profile) { /* Clear previous URI sink if it existed */ /* FIXME : We should figure out if it was added to the pipeline, * and if so, remove it. */ if (pipeline->priv->urisink) { g_object_unref (pipeline->priv->urisink); pipeline->priv->urisink = NULL; } pipeline->priv->urisink = gst_element_make_from_uri (GST_URI_SINK, output_uri, "urisink"); if (G_UNLIKELY (pipeline->priv->urisink == NULL)) { GST_ERROR_OBJECT (pipeline, "Couldn't not create sink for URI %s", output_uri); return FALSE; } if (pipeline->priv->profile) gst_encoding_profile_unref (pipeline->priv->profile); g_object_set (pipeline->priv->encodebin, "avoid-reencoding", !(!(pipeline->priv->mode & TIMELINE_MODE_SMART_RENDER)), NULL); g_object_set (pipeline->priv->encodebin, "profile", profile, NULL); pipeline->priv->profile = (GstEncodingProfile *) gst_encoding_profile_ref (profile); return TRUE; } /** * ges_timeline_pipeline_set_mode: * @pipeline: a #GESTimelinePipeline * @mode: the #GESPipelineFlags to use * * switches the @pipeline to the specified @mode. The default mode when * creating a #GESTimelinePipeline is #TIMELINE_MODE_PREVIEW. * * Note: The @pipeline will be set to #GST_STATE_NULL during this call due to * the internal changes that happen. The caller will therefore have to * set the @pipeline to the requested state after calling this method. * * Returns: %TRUE if the mode was properly set, else %FALSE. **/ gboolean ges_timeline_pipeline_set_mode (GESTimelinePipeline * pipeline, GESPipelineFlags mode) { GST_DEBUG_OBJECT (pipeline, "current mode : %d, mode : %d", pipeline->priv->mode, mode); /* fast-path, nothing to change */ if (mode == pipeline->priv->mode) return TRUE; /* FIXME: It would be nice if we are only (de)activating preview * modes to not set the whole pipeline to NULL, but instead just * do the proper (un)linking to playsink. */ /* Switch pipeline to NULL since we're changing the configuration */ gst_element_set_state (GST_ELEMENT_CAST (pipeline), GST_STATE_NULL); /* remove no-longer needed components */ if (pipeline->priv->mode & TIMELINE_MODE_PREVIEW && !(mode & TIMELINE_MODE_PREVIEW)) { /* Disable playsink */ GST_DEBUG ("Disabling playsink"); g_object_ref (pipeline->priv->playsink); gst_bin_remove (GST_BIN_CAST (pipeline), pipeline->priv->playsink); } if ((pipeline->priv->mode & (TIMELINE_MODE_RENDER | TIMELINE_MODE_SMART_RENDER)) && !(mode & (TIMELINE_MODE_RENDER | TIMELINE_MODE_SMART_RENDER))) { /* Disable render bin */ GST_DEBUG ("Disabling rendering bin"); g_object_ref (pipeline->priv->encodebin); g_object_ref (pipeline->priv->urisink); gst_bin_remove_many (GST_BIN_CAST (pipeline), pipeline->priv->encodebin, pipeline->priv->urisink, NULL); } /* Add new elements */ if (!(pipeline->priv->mode & TIMELINE_MODE_PREVIEW) && (mode & TIMELINE_MODE_PREVIEW)) { /* Add playsink */ GST_DEBUG ("Adding playsink"); if (!gst_bin_add (GST_BIN_CAST (pipeline), pipeline->priv->playsink)) { GST_ERROR_OBJECT (pipeline, "Couldn't add playsink"); return FALSE; } } if (!(pipeline->priv->mode & (TIMELINE_MODE_RENDER | TIMELINE_MODE_SMART_RENDER)) && (mode & (TIMELINE_MODE_RENDER | TIMELINE_MODE_SMART_RENDER))) { /* Adding render bin */ GST_DEBUG ("Adding render bin"); if (G_UNLIKELY (pipeline->priv->urisink == NULL)) { GST_ERROR_OBJECT (pipeline, "Output URI not set !"); return FALSE; } if (!gst_bin_add (GST_BIN_CAST (pipeline), pipeline->priv->encodebin)) { GST_ERROR_OBJECT (pipeline, "Couldn't add encodebin"); return FALSE; } if (!gst_bin_add (GST_BIN_CAST (pipeline), pipeline->priv->urisink)) { GST_ERROR_OBJECT (pipeline, "Couldn't add URI sink"); return FALSE; } g_object_set (pipeline->priv->encodebin, "avoid-reencoding", !(!(mode & TIMELINE_MODE_SMART_RENDER)), NULL); gst_element_link_pads_full (pipeline->priv->encodebin, "src", pipeline->priv->urisink, "sink", GST_PAD_LINK_CHECK_NOTHING); } /* FIXUPS */ /* FIXME * If we are rendering, set playsink to sync=False, * If we are NOT rendering, set playsink to sync=TRUE */ pipeline->priv->mode = mode; return TRUE; } /** * ges_timeline_pipeline_get_thumbnail_buffer: * @self: a #GESTimelinePipeline in %GST_STATE_PLAYING or %GST_STATE_PAUSED * @caps: (transfer none): caps specifying current format. Use %GST_CAPS_ANY * for native size. * * Returns a #GstBuffer with the currently playing in the format specified by * caps. The caller should unref the #gst_buffer_unref when finished. If ANY * caps are specified, the information will be returned in the whatever format * is currently used by the sink. This information can be retrieve from caps * associated with the buffer. * * Returns: (transfer full): a #GstBuffer or %NULL */ GstBuffer * ges_timeline_pipeline_get_thumbnail_buffer (GESTimelinePipeline * self, GstCaps * caps) { GstElement *sink; GstBuffer *buf; sink = self->priv->playsink; if (!sink) { GST_WARNING ("thumbnailing can only be done if we have a playsink"); return NULL; } buf = ges_play_sink_convert_frame (sink, caps); return buf; } /** * ges_timeline_pipeline_save_thumbnail: * @self: a #GESTimelinePipeline in %GST_STATE_PLAYING or %GST_STATE_PAUSED * @width: the requested width or -1 for native size * @height: the requested height or -1 for native size * @format: a string specifying the desired mime type (for example, * image/jpeg) * @location: the path to save the thumbnail * * Saves the current frame to the specified @location. * * Returns: %TRUE if the thumbnail was properly save, else %FALSE. */ gboolean ges_timeline_pipeline_save_thumbnail (GESTimelinePipeline * self, int width, int height, const gchar * format, const gchar * location) { GstBuffer *b; FILE *fp; GstCaps *caps; gboolean res = TRUE; caps = gst_caps_from_string (format); if (width > 1) gst_caps_set_simple (caps, "width", G_TYPE_INT, width, NULL); if (height > 1) gst_caps_set_simple (caps, "height", G_TYPE_INT, height, NULL); if (!(b = ges_timeline_pipeline_get_thumbnail_buffer (self, caps))) { gst_caps_unref (caps); return res; } /* FIXME : Use standard glib methods */ fp = fopen (location, "w+"); if (!fwrite (GST_BUFFER_DATA (b), GST_BUFFER_SIZE (b), 1, fp) || ferror (fp)) { res = FALSE; } fclose (fp); gst_caps_unref (caps); gst_buffer_unref (b); return res; } /** * ges_timeline_pipeline_get_thumbnail_rgb24: * @self: a #GESTimelinePipeline in %GST_STATE_PLAYING or %GST_STATE_PAUSED * @width: the requested width or -1 for native size * @height: the requested height or -1 for native size * * A convenience method for ges_timeline_pipeline_get_thumbnail_raw which * returns a buffer in 24-bit RGB, optionally scaled to the specified width * and height. If -1 is specified for either dimension, it will be left at * native size. You can retreive this information from the caps associated * with the buffer. * * The caller is responsible for unreffing the returned buffer with * #gst_buffer_unref. * * Returns: (transfer full): a #GstBuffer or %NULL */ GstBuffer * ges_timeline_pipeline_get_thumbnail_rgb24 (GESTimelinePipeline * self, gint width, gint height) { GstBuffer *ret; GstCaps *caps; caps = gst_caps_from_string ("video/x-raw-rgb,bpp=(int)24," "depth=(int)24"); if (width != -1) gst_caps_set_simple (caps, "width", G_TYPE_INT, (gint) width, NULL); if (height != -1) gst_caps_set_simple (caps, "height", G_TYPE_INT, (gint) height, NULL); ret = ges_timeline_pipeline_get_thumbnail_buffer (self, caps); gst_caps_unref (caps); return ret; } /** * ges_timeline_pipeline_preview_get_video_sink: * @self: a #GESTimelinePipeline * * Obtains a pointer to playsink's video sink element that is used for * displaying video when the #GESTimelinePipeline is in %TIMELINE_MODE_PREVIEW * * The caller is responsible for unreffing the returned element with * #gst_object_unref. * * Returns: (transfer full): a pointer to the playsink video sink #GstElement */ GstElement * ges_timeline_pipeline_preview_get_video_sink (GESTimelinePipeline * self) { GstElement *sink; g_object_get (self->priv->playsink, "video-sink", &sink, NULL); return sink; }; /** * ges_timeline_pipeline_preview_set_video_sink: * @self: a #GESTimelinePipeline in %GST_STATE_NULL * @sink: (transfer none): a video sink #GstElement * * Sets playsink's video sink element that is used for displaying video when * the #GESTimelinePipeline is in %TIMELINE_MODE_PREVIEW */ void ges_timeline_pipeline_preview_set_video_sink (GESTimelinePipeline * self, GstElement * sink) { g_object_set (self->priv->playsink, "video-sink", sink, NULL); }; /** * ges_timeline_pipeline_preview_get_audio_sink: * @self: a #GESTimelinePipeline * * Obtains a pointer to playsink's audio sink element that is used for * displaying audio when the #GESTimelinePipeline is in %TIMELINE_MODE_PREVIEW * * The caller is responsible for unreffing the returned element with * #gst_object_unref. * * Returns: (transfer full): a pointer to the playsink audio sink #GstElement */ GstElement * ges_timeline_pipeline_preview_get_audio_sink (GESTimelinePipeline * self) { GstElement *sink; g_object_get (self->priv->playsink, "audio-sink", &sink, NULL); return sink; }; /** * ges_timeline_pipeline_preview_set_audio_sink: * @self: a #GESTimelinePipeline in %GST_STATE_NULL * @sink: (transfer none): a audio sink #GstElement * * Sets playsink's audio sink element that is used for displaying audio when * the #GESTimelinePipeline is in %TIMELINE_MODE_PREVIEW */ void ges_timeline_pipeline_preview_set_audio_sink (GESTimelinePipeline * self, GstElement * sink) { g_object_set (self->priv->playsink, "audio-sink", sink, NULL); }; static gboolean play_sink_multiple_seeks_send_event (GstElement * element, GstEvent * event) { GstElementClass *klass = GST_ELEMENT_GET_CLASS (element); GST_DEBUG ("%s", GST_EVENT_TYPE_NAME (event)); return GST_ELEMENT_CLASS (g_type_class_peek_parent (klass))->send_event (element, event); }