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GESTimelinePipeline: beginning of render support

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This commit is contained in:
Edward Hervey 2009-12-04 10:49:32 +01:00
parent dd9d3e420c
commit 2d430098f8
3 changed files with 178 additions and 22 deletions
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9
docs/libs/ges-sections.txt
View file

@ -167,11 +167,14 @@ ges_timeline_object_get_type
<SECTION>
<FILE>ges-timeline-pipeline</FILE>
<TITLE>GESTimelinePipeline</TITLE>
GESPipelineFlags
ges_timeline_pipeline_new
ges_timeline_pipeline_add_timeline
ges_timeline_pipeline_set_mode
ges_timeline_pipeline_set_render_settings
<SUBSECTION Standard>
GESTimelinePipeline
GESTimelinePipelineClass
ges_timeline_pipeline_add_timeline
ges_timeline_pipeline_new
<SUBSECTION Standard>
ges_timeline_pipeline_get_type
GES_TIMELINE_PIPELINE
GES_TIMELINE_PIPELINE_CLASS

161
ges/ges-timeline-pipeline.c
View file

@ -30,14 +30,17 @@
#include "ges-internal.h"
#include "ges-timeline-pipeline.h"
#define DEFAULT_TIMELINE_MODE TIMELINE_MODE_PREVIEW
/* Structure corresponding to a timeline - sink link */
/* TODO : Don't forget we want to render also :) */
typedef struct
{
GESTimelinePipeline *pipeline;
GstElement *queue;
GstPad *srcpad;
GstPad *sinkpad;
GstPad *playsinkpad;
GstPad *encodebinpad;
} OutputChain;
G_DEFINE_TYPE (GESTimelinePipeline, ges_timeline_pipeline, GST_TYPE_PIPELINE);
@ -75,10 +78,10 @@ ges_timeline_pipeline_finalize (GObject * object)
{
GESTimelinePipeline *self = GES_TIMELINE_PIPELINE (object);
if (self->sink) {
gst_bin_remove (GST_BIN (object), self->sink);
gst_object_unref (self->sink);
self->sink = NULL;
if (self->playsink) {
gst_bin_remove (GST_BIN (object), self->playsink);
gst_object_unref (self->playsink);
self->playsink = NULL;
}
G_OBJECT_CLASS (ges_timeline_pipeline_parent_class)->finalize (object);
}
@ -106,17 +109,16 @@ ges_timeline_pipeline_init (GESTimelinePipeline * self)
{
GST_INFO_OBJECT (self, "Creating new 'playsink'");
self->sink = gst_element_factory_make ("playsink", "internal-sinks");
self->playsink = gst_element_factory_make ("playsink", "internal-sinks");
self->encodebin =
gst_element_factory_make ("encodebin", "internal-encodebin");
if (G_UNLIKELY (self->sink == NULL))
if (G_UNLIKELY (self->playsink == NULL))
GST_ERROR_OBJECT (self, "Can't create playsink instance !");
else {
GST_INFO_OBJECT (self, "Adding playsink to self");
if (G_UNLIKELY (self->encodebin == NULL))
GST_ERROR_OBJECT (self, "Can't create encodebin instance !");
if (G_UNLIKELY (!gst_bin_add (GST_BIN (self), self->sink))) {
GST_ERROR_OBJECT (self, "Can't add playsink to ourselves !");
}
}
ges_timeline_pipeline_set_mode (self, DEFAULT_TIMELINE_MODE);
}
/**
@ -174,6 +176,8 @@ pad_added_cb (GstElement * timeline, GstPad * pad, GESTimelinePipeline * self)
GST_DEBUG_OBJECT (self, "new pad %s:%s", GST_DEBUG_PAD_NAME (pad));
/* FIXME : Adapt for usage of render sink */
if (G_UNLIKELY (!(track =
ges_timeline_get_track_for_pad (self->timeline, pad)))) {
GST_WARNING_OBJECT (self, "Couldn't find coresponding track !");
@ -198,7 +202,7 @@ pad_added_cb (GstElement * timeline, GstPad * pad, GESTimelinePipeline * self)
/* Request a sinkpad from playsink */
if (G_UNLIKELY (!(sinkpad =
gst_element_get_request_pad (self->sink, sinkpad_name)))) {
gst_element_get_request_pad (self->playsink, sinkpad_name)))) {
GST_WARNING_OBJECT (self, "Couldn't get a pad from the playsink !");
return;
}
@ -212,14 +216,14 @@ pad_added_cb (GstElement * timeline, GstPad * pad, GESTimelinePipeline * self)
GST_DEBUG ("Reconfiguring playsink");
/* reconfigure playsink */
g_signal_emit_by_name (self->sink, "reconfigure", &reconfigured);
g_signal_emit_by_name (self->playsink, "reconfigure", &reconfigured);
GST_DEBUG ("'reconfigure' returned %d", reconfigured);
/* Create a new chain */
chain = g_new0 (OutputChain, 1);
chain->pipeline = self;
chain->srcpad = pad;
chain->sinkpad = sinkpad;
chain->playsinkpad = sinkpad;
self->chains = g_list_append (self->chains, chain);
@ -229,7 +233,9 @@ pad_added_cb (GstElement * timeline, GstPad * pad, GESTimelinePipeline * self)
static void
pad_removed_cb (GstElement * timeline, GstPad * pad, GESTimelinePipeline * self)
{
GST_DEBUG ("pad %s:%s", GST_DEBUG_PAD_NAME (pad));
GST_DEBUG_OBJECT (self, "pad removed %s:%s", GST_DEBUG_PAD_NAME (pad));
/* FIXME : IMPLEMENT ! */
GST_DEBUG ("done");
}
@ -267,3 +273,122 @@ ges_timeline_pipeline_add_timeline (GESTimelinePipeline * 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.
*
* 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->urisink) {
g_object_unref (pipeline->urisink);
pipeline->urisink = NULL;
}
pipeline->urisink =
gst_element_make_from_uri (GST_URI_SINK, output_uri, "urisink");
if (G_UNLIKELY (pipeline->urisink == NULL)) {
GST_ERROR_OBJECT (pipeline, "Couldn't not create sink for URI %s",
output_uri);
return FALSE;
}
g_object_set (pipeline->encodebin, "profile", profile, NULL);
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.
**/
gboolean
ges_timeline_pipeline_set_mode (GESTimelinePipeline * pipeline,
GESPipelineFlags mode)
{
GST_DEBUG_OBJECT (pipeline, "current mode : %d, mode : %d", pipeline->mode,
mode);
/* fast-path, nothing to change */
if (mode == pipeline->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->mode & TIMELINE_MODE_PREVIEW && !(mode & TIMELINE_MODE_PREVIEW)) {
/* Disable playsink */
GST_DEBUG ("Disabling playsink");
g_object_ref (pipeline->playsink);
gst_bin_remove (GST_BIN_CAST (pipeline), pipeline->playsink);
}
if ((pipeline->mode & TIMELINE_MODE_RENDER) && !(mode & TIMELINE_MODE_RENDER)) {
/* Disable render bin */
GST_DEBUG ("Disabling rendering bin");
g_object_ref (pipeline->encodebin);
g_object_ref (pipeline->urisink);
gst_bin_remove_many (GST_BIN_CAST (pipeline),
pipeline->encodebin, pipeline->urisink, NULL);
}
/* Add new elements */
if (!(pipeline->mode & TIMELINE_MODE_PREVIEW) &&
(mode & TIMELINE_MODE_PREVIEW)) {
/* Add playsink */
GST_DEBUG ("Adding playsink");
if (!gst_bin_add (GST_BIN_CAST (pipeline), pipeline->playsink)) {
GST_ERROR_OBJECT (pipeline, "Couldn't add playsink");
return FALSE;
}
}
if (!(pipeline->mode & TIMELINE_MODE_RENDER) && (mode & TIMELINE_MODE_RENDER)) {
/* Adding render bin */
GST_DEBUG ("Adding render bin");
if (G_UNLIKELY (pipeline->urisink == NULL)) {
GST_ERROR_OBJECT (pipeline, "Output URI not set !");
return FALSE;
}
if (!gst_bin_add (GST_BIN_CAST (pipeline), pipeline->encodebin)) {
GST_ERROR_OBJECT (pipeline, "Couldn't add encodebin");
return FALSE;
}
if (!gst_bin_add (GST_BIN_CAST (pipeline), pipeline->urisink)) {
GST_ERROR_OBJECT (pipeline, "Couldn't add URI sink");
return FALSE;
}
gst_element_link (pipeline->encodebin, pipeline->urisink);
}
/* FIXUPS */
/* FIXME
* If we are rendering, set playsink to sync=False,
* If we are NOT rendering, set playsink to sync=TRUE */
return TRUE;
}

30
ges/ges-timeline-pipeline.h
View file

@ -23,6 +23,7 @@
#include <glib-object.h>
#include <ges/ges.h>
#include <gst/profile/gstprofile.h>
G_BEGIN_DECLS
@ -43,12 +44,33 @@ G_BEGIN_DECLS
#define GES_TIMELINE_PIPELINE_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS ((obj), GES_TYPE_TIMELINE_PIPELINE, GESTimelinePipelineClass))
/**
* GESPipelineFlags:
* @TIMELINE_MODE_PREVIEW_AUDIO: output audio to the soundcard
* @TIMELINE_MODE_PREVIEW_VIDEO: output video to the screen
* @TIMELINE_MODE_PREVIEW: output audio/video to soundcard/screen (default)
* @TIMELINE_MODE_RENDER: render timeline
*
* The various modes the #GESTimelinePipeline can be configured to.
*/
typedef enum {
TIMELINE_MODE_PREVIEW_AUDIO = 1 << 0,
TIMELINE_MODE_PREVIEW_VIDEO = 1 << 1,
TIMELINE_MODE_PREVIEW = TIMELINE_MODE_PREVIEW_AUDIO | TIMELINE_MODE_PREVIEW_VIDEO,
TIMELINE_MODE_RENDER = 1 << 2
} GESPipelineFlags;
struct _GESTimelinePipeline {
GstPipeline parent;
/* <private> */
GESTimeline * timeline;
GstElement * sink;
GstElement * playsink;
GstElement * encodebin;
/* Note : urisink is only created when a URI has been provided */
GstElement * urisink;
GESPipelineFlags mode;
GList *chains;
};
@ -64,6 +86,12 @@ GESTimelinePipeline* ges_timeline_pipeline_new (void);
gboolean ges_timeline_pipeline_add_timeline (GESTimelinePipeline * pipeline,
GESTimeline * timeline);
gboolean ges_timeline_pipeline_set_render_settings (GESTimelinePipeline *pipeline,
gchar * output_uri,
GstEncodingProfile *profile);
gboolean ges_timeline_pipeline_set_mode (GESTimelinePipeline *pipeline,
GESPipelineFlags mode);
G_END_DECLS
#endif /* _GES_TIMELINE_PIPELINE */