forked from enlightenment/efl
parent
56afa242b4
commit
6f7044b93d
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@ -0,0 +1,664 @@
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#include <glib.h>
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#include <gst/gst.h>
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#include <gst/video/video.h>
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#include <gst/video/gstvideosink.h>
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#include <Ecore.h>
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#include "emotion_gstreamer.h"
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static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE("sink",
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GST_PAD_SINK, GST_PAD_ALWAYS,
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GST_STATIC_CAPS(GST_VIDEO_CAPS_BGRx ";" GST_VIDEO_CAPS_BGR ";" GST_VIDEO_CAPS_BGRA ";" GST_VIDEO_CAPS_YUV("{I420,YV12}")));
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GST_DEBUG_CATEGORY_STATIC(evas_video_sink_debug);
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#define GST_CAT_DEFAULT evas_video_sink_debug
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enum {
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REPAINT_REQUESTED,
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LAST_SIGNAL
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};
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enum {
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PROP_0,
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PROP_EVAS_OBJECT,
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PROP_WIDTH,
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PROP_HEIGHT,
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PROP_LAST,
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};
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static guint evas_video_sink_signals[LAST_SIGNAL] = { 0, };
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struct _EvasVideoSinkPrivate {
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Evas_Object *o;
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Ecore_Pipe *p;
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int width;
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int height;
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gboolean update_size;
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GstVideoFormat format;
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GMutex* buffer_mutex;
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GCond* data_cond;
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// If this is TRUE all processing should finish ASAP
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// This is necessary because there could be a race between
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// unlock() and render(), where unlock() wins, signals the
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// GCond, then render() tries to render a frame although
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// everything else isn't running anymore. This will lead
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// to deadlocks because render() holds the stream lock.
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//
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// Protected by the buffer mutex
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gboolean unlocked;
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};
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#define _do_init(bla) \
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GST_DEBUG_CATEGORY_INIT(evas_video_sink_debug, \
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"evassink", \
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0, \
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"evas video sink")
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GST_BOILERPLATE_FULL(EvasVideoSink,
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evas_video_sink,
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GstVideoSink,
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GST_TYPE_VIDEO_SINK,
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_do_init);
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static void unlock_buffer_mutex(EvasVideoSinkPrivate* priv);
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static void evas_video_sink_render_handler(void *data, void *buf, unsigned int len);
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static void
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evas_video_sink_base_init(gpointer g_class)
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{
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GstElementClass* element_class;
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element_class = GST_ELEMENT_CLASS(g_class);
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gst_element_class_add_pad_template(element_class, gst_static_pad_template_get(&sinktemplate));
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gst_element_class_set_details_simple(element_class, "Evas video sink",
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"Sink/Video", "Sends video data from a GStreamer pipeline to an Evas object",
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"Vincent Torri <vtorri@univ-evry.fr>");
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}
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static void
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evas_video_sink_init(EvasVideoSink* sink, EvasVideoSinkClass* klass __UNUSED__)
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{
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EvasVideoSinkPrivate* priv;
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sink->priv = priv = G_TYPE_INSTANCE_GET_PRIVATE(sink, EVAS_TYPE_VIDEO_SINK, EvasVideoSinkPrivate);
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priv->o = NULL;
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priv->p = ecore_pipe_add(evas_video_sink_render_handler, sink);
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priv->width = 0;
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priv->height = 0;
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priv->update_size = TRUE;
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priv->format = GST_VIDEO_FORMAT_UNKNOWN;
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priv->data_cond = g_cond_new();
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priv->buffer_mutex = g_mutex_new();
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}
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/**** Object methods ****/
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static void
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evas_video_sink_set_property(GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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EvasVideoSink* sink;
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EvasVideoSinkPrivate* priv;
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sink = EVAS_VIDEO_SINK (object);
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priv = sink->priv;
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switch (prop_id) {
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case PROP_EVAS_OBJECT:
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g_mutex_lock(priv->buffer_mutex);
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priv->o = g_value_get_pointer (value);
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g_mutex_unlock(priv->buffer_mutex);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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evas_video_sink_get_property(GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec)
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{
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EvasVideoSink* sink;
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EvasVideoSinkPrivate* priv;
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sink = EVAS_VIDEO_SINK (object);
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priv = sink->priv;
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switch (prop_id) {
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case PROP_EVAS_OBJECT:
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g_mutex_lock(priv->buffer_mutex);
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g_value_set_pointer (value, priv->o);
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g_mutex_unlock(priv->buffer_mutex);
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break;
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case PROP_WIDTH:
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g_mutex_lock(priv->buffer_mutex);
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g_value_set_int(value, priv->width);
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g_mutex_unlock(priv->buffer_mutex);
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break;
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case PROP_HEIGHT:
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g_mutex_lock(priv->buffer_mutex);
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g_value_set_int (value, priv->height);
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g_mutex_unlock(priv->buffer_mutex);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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evas_video_sink_dispose(GObject* object)
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{
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EvasVideoSink* sink;
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EvasVideoSinkPrivate* priv;
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sink = EVAS_VIDEO_SINK(object);
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priv = sink->priv;
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if (priv->buffer_mutex) {
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g_mutex_free(priv->buffer_mutex);
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priv->buffer_mutex = 0;
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}
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if (priv->data_cond) {
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g_cond_free(priv->data_cond);
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priv->data_cond = 0;
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}
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if (priv->p) {
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ecore_pipe_del(priv->p);
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priv->p = NULL;
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}
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G_OBJECT_CLASS(parent_class)->dispose(object);
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}
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/**** BaseSink methods ****/
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gboolean evas_video_sink_set_caps(GstBaseSink *bsink, GstCaps *caps)
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{
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EvasVideoSink* sink;
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EvasVideoSinkPrivate* priv;
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int width;
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int height;
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sink = EVAS_VIDEO_SINK(bsink);
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priv = sink->priv;
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if (G_UNLIKELY(!gst_video_format_parse_caps(caps, &priv->format, &width, &height))) {
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return FALSE;
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}
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if ((width != priv->width) || (height != priv->height))
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{
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priv->width = width;
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priv->height = height;
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priv->update_size = TRUE;
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}
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printf("format :");
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switch (priv->format)
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{
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case GST_VIDEO_FORMAT_I420:
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evas_object_image_size_set(priv->o, priv->width, priv->height);
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evas_object_image_fill_set(priv->o, 0, 0, priv->width, priv->height);
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evas_object_image_colorspace_set(priv->o, EVAS_COLORSPACE_YCBCR422P601_PL);
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evas_object_image_alpha_set(priv->o, 0);
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printf ("I420\n");
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break;
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case GST_VIDEO_FORMAT_YV12:
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evas_object_image_size_set(priv->o, priv->width, priv->height);
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evas_object_image_fill_set(priv->o, 0, 0, priv->width, priv->height);
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evas_object_image_colorspace_set(priv->o, EVAS_COLORSPACE_YCBCR422P601_PL);
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evas_object_image_alpha_set(priv->o, 0);
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printf ("YV12\n");
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break;
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case GST_VIDEO_FORMAT_BGR:
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printf ("BGR\n");
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break;
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case GST_VIDEO_FORMAT_BGRx:
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printf ("BGRx\n");
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break;
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case GST_VIDEO_FORMAT_BGRA:
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printf ("BGRA\n");
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break;
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default:
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printf ("unsupported : %d\n", priv->format);
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return FALSE;
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}
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return TRUE;
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}
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static gboolean
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evas_video_sink_start(GstBaseSink* base_sink)
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{
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EvasVideoSinkPrivate* priv;
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gboolean res = TRUE;
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priv = EVAS_VIDEO_SINK(base_sink)->priv;
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g_mutex_lock(priv->buffer_mutex);
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if (!priv->o)
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res = FALSE;
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else
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{
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if (!priv->p)
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res = FALSE;
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else
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{
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priv->unlocked = FALSE;
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}
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}
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g_mutex_unlock(priv->buffer_mutex);
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return res;
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}
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static gboolean
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evas_video_sink_stop(GstBaseSink* base_sink)
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{
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EvasVideoSinkPrivate* priv = EVAS_VIDEO_SINK(base_sink)->priv;
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unlock_buffer_mutex(priv);
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return TRUE;
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}
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static gboolean
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evas_video_sink_unlock(GstBaseSink* object)
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{
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EvasVideoSink* sink;
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sink = EVAS_VIDEO_SINK(object);
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unlock_buffer_mutex(sink->priv);
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return GST_CALL_PARENT_WITH_DEFAULT(GST_BASE_SINK_CLASS, unlock,
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(object), TRUE);
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}
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static gboolean
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evas_video_sink_unlock_stop(GstBaseSink* object)
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{
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EvasVideoSink* sink;
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EvasVideoSinkPrivate* priv;
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sink = EVAS_VIDEO_SINK(object);
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priv = sink->priv;
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g_mutex_lock(priv->buffer_mutex);
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priv->unlocked = FALSE;
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g_mutex_unlock(priv->buffer_mutex);
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return GST_CALL_PARENT_WITH_DEFAULT(GST_BASE_SINK_CLASS, unlock_stop,
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(object), TRUE);
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}
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static GstFlowReturn
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evas_video_sink_preroll(GstBaseSink* bsink, GstBuffer* buffer)
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{
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return GST_FLOW_OK;
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}
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static GstFlowReturn
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evas_video_sink_render(GstBaseSink* bsink, GstBuffer* buffer)
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{
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GstBuffer *send;
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EvasVideoSink* sink;
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EvasVideoSinkPrivate* priv;
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Eina_Bool ret;
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sink = EVAS_VIDEO_SINK(bsink);
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priv = sink->priv;
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g_mutex_lock(priv->buffer_mutex);
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if (priv->unlocked) {
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g_mutex_unlock(priv->buffer_mutex);
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return GST_FLOW_OK;
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}
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send = gst_buffer_ref(buffer);
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ret = ecore_pipe_write(priv->p, &send, sizeof(buffer));
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if (!ret)
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return GST_FLOW_ERROR;
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g_cond_wait(priv->data_cond, priv->buffer_mutex);
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g_mutex_unlock(priv->buffer_mutex);
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return GST_FLOW_OK;
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}
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static void evas_video_sink_render_handler(void *data,
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void *buf,
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unsigned int len)
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{
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Emotion_Gstreamer_Video *ev;
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Emotion_Video_Stream *vstream;
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EvasVideoSink* sink;
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EvasVideoSinkPrivate* priv;
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GstBuffer* buffer;
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unsigned char *evas_data;
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const guint8 *gst_data;
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GstQuery *query;
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GstFormat fmt = GST_FORMAT_TIME;
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gint64 pos;
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sink = (EvasVideoSink *)data;
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priv = sink->priv;
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buffer = *((GstBuffer **)buf);
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if (priv->unlocked)
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goto exit_point;
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gst_data = GST_BUFFER_DATA(buffer);
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if (!gst_data) goto exit_point;
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if (priv->update_size)
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{
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evas_object_image_size_set(priv->o, priv->width, priv->height);
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evas_object_image_fill_set(priv->o, 0, 0, priv->width, priv->height);
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priv->update_size = FALSE;
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}
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evas_data = (unsigned char *)evas_object_image_data_get(priv->o, 1);
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// Evas's BGRA has pre-multiplied alpha while GStreamer's doesn't.
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// Here we convert to Evas's BGRA.
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if (priv->format == GST_VIDEO_FORMAT_BGR) {
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unsigned char *evas_tmp;
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int x;
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int y;
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evas_tmp = evas_data;
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/* FIXME: could this be optimized ? */
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for (x = 0; x < priv->height; x++) {
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for (y = 0; y < priv->width; y++) {
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evas_tmp[0] = gst_data[0];
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evas_tmp[1] = gst_data[1];
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evas_tmp[2] = gst_data[2];
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evas_tmp[3] = 255;
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gst_data += 3;
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evas_tmp += 4;
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}
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}
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}
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// Evas's BGRA has pre-multiplied alpha while GStreamer's doesn't.
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// Here we convert to Evas's BGRA.
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if (priv->format == GST_VIDEO_FORMAT_BGRx) {
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unsigned char *evas_tmp;
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int x;
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int y;
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evas_tmp = evas_data;
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/* FIXME: could this be optimized ? */
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for (x = 0; x < priv->height; x++) {
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for (y = 0; y < priv->width; y++) {
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evas_tmp[0] = gst_data[0];
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evas_tmp[1] = gst_data[1];
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evas_tmp[2] = gst_data[2];
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evas_tmp[3] = 255;
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gst_data += 4;
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evas_tmp += 4;
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}
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}
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}
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// Evas's BGRA has pre-multiplied alpha while GStreamer's doesn't.
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// Here we convert to Evas's BGRA.
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if (priv->format == GST_VIDEO_FORMAT_BGRA) {
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unsigned char *evas_tmp;
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int x;
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int y;
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unsigned char alpha;
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evas_tmp = evas_data;
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/* FIXME: could this be optimized ? */
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for (x = 0; x < priv->height; x++) {
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for (y = 0; y < priv->width; y++) {
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alpha = gst_data[3];
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evas_tmp[0] = (gst_data[0] * alpha) / 255;
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evas_tmp[1] = (gst_data[1] * alpha) / 255;
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evas_tmp[2] = (gst_data[2] * alpha) / 255;
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evas_tmp[3] = alpha;
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gst_data += 4;
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evas_tmp += 4;
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}
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}
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}
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if (priv->format == GST_VIDEO_FORMAT_I420) {
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int i;
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unsigned char **rows;
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evas_object_image_pixels_dirty_set(priv->o, 1);
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rows = (unsigned char **)evas_data;
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for (i = 0; i < priv->height; i++)
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rows[i] = &gst_data[i * priv->width];
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rows += priv->height;
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for (i = 0; i < (priv->height / 2); i++)
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rows[i] = &gst_data[priv->height * priv->width + i * (priv->width / 2)];
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rows += priv->height / 2;
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for (i = 0; i < (priv->height / 2); i++)
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rows[i] = &gst_data[priv->height * priv->width + priv->height * (priv->width /4) + i * (priv->width / 2)];
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}
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if (priv->format == GST_VIDEO_FORMAT_YV12) {
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int i;
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unsigned char **rows;
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evas_object_image_pixels_dirty_set(priv->o, 1);
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rows = (unsigned char **)evas_data;
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for (i = 0; i < priv->height; i++)
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rows[i] = &gst_data[i * priv->width];
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rows += priv->height;
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for (i = 0; i < (priv->height / 2); i++)
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rows[i] = &gst_data[priv->height * priv->width + priv->height * (priv->width /4) + i * (priv->width / 2)];
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rows += priv->height / 2;
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for (i = 0; i < (priv->height / 2); i++)
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rows[i] = &gst_data[priv->height * priv->width + i * (priv->width / 2)];
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}
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evas_object_image_data_update_add(priv->o, 0, 0, priv->width, priv->height);
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evas_object_image_data_set(priv->o, evas_data);
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evas_object_image_pixels_dirty_set(priv->o, 0);
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ev = evas_object_data_get(priv->o, "_emotion_gstreamer_video");
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_emotion_frame_new(ev->obj);
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|
||||
vstream = eina_list_nth(ev->video_streams, ev->video_stream_nbr - 1);
|
||||
|
||||
gst_element_query_position(ev->pipeline, &fmt, &pos);
|
||||
ev->position = (double)pos / (double)GST_SECOND;
|
||||
|
||||
vstream->width = priv->width;
|
||||
vstream->height = priv->height;
|
||||
ev->ratio = (double) priv->width / (double) priv->height;
|
||||
|
||||
if (vstream)
|
||||
{
|
||||
_emotion_video_pos_update(ev->obj, ev->position, vstream->length_time);
|
||||
_emotion_frame_resize(ev->obj, vstream->width, vstream->height, ev->ratio);
|
||||
}
|
||||
|
||||
exit_point:
|
||||
gst_buffer_unref(buffer);
|
||||
|
||||
g_mutex_lock(priv->buffer_mutex);
|
||||
|
||||
if (priv->unlocked) {
|
||||
g_mutex_unlock(priv->buffer_mutex);
|
||||
return;
|
||||
}
|
||||
|
||||
g_cond_signal(priv->data_cond);
|
||||
g_mutex_unlock(priv->buffer_mutex);
|
||||
}
|
||||
|
||||
static void
|
||||
unlock_buffer_mutex(EvasVideoSinkPrivate* priv)
|
||||
{
|
||||
g_mutex_lock(priv->buffer_mutex);
|
||||
|
||||
priv->unlocked = TRUE;
|
||||
g_cond_signal(priv->data_cond);
|
||||
g_mutex_unlock(priv->buffer_mutex);
|
||||
}
|
||||
|
||||
static void
|
||||
marshal_VOID__MINIOBJECT(GClosure * closure, GValue * return_value __UNUSED__,
|
||||
guint n_param_values, const GValue * param_values,
|
||||
gpointer invocation_hint __UNUSED__, gpointer marshal_data)
|
||||
{
|
||||
typedef void (*marshalfunc_VOID__MINIOBJECT) (gpointer obj, gpointer arg1, gpointer data2);
|
||||
marshalfunc_VOID__MINIOBJECT callback;
|
||||
GCClosure *cc;
|
||||
gpointer data1, data2;
|
||||
|
||||
cc = (GCClosure *) closure;
|
||||
|
||||
g_return_if_fail(n_param_values == 2);
|
||||
|
||||
if (G_CCLOSURE_SWAP_DATA(closure)) {
|
||||
data1 = closure->data;
|
||||
data2 = g_value_peek_pointer(param_values + 0);
|
||||
} else {
|
||||
data1 = g_value_peek_pointer(param_values + 0);
|
||||
data2 = closure->data;
|
||||
}
|
||||
callback = (marshalfunc_VOID__MINIOBJECT) (marshal_data ? marshal_data : cc->callback);
|
||||
|
||||
callback(data1, gst_value_get_mini_object(param_values + 1), data2);
|
||||
}
|
||||
|
||||
static void
|
||||
evas_video_sink_class_init(EvasVideoSinkClass* klass)
|
||||
{
|
||||
GObjectClass* gobject_class;
|
||||
GstBaseSinkClass* gstbase_sink_class;
|
||||
|
||||
gobject_class = G_OBJECT_CLASS(klass);
|
||||
gstbase_sink_class = GST_BASE_SINK_CLASS(klass);
|
||||
|
||||
g_type_class_add_private(klass, sizeof(EvasVideoSinkPrivate));
|
||||
|
||||
gobject_class->set_property = evas_video_sink_set_property;
|
||||
gobject_class->get_property = evas_video_sink_get_property;
|
||||
|
||||
g_object_class_install_property (gobject_class, PROP_EVAS_OBJECT,
|
||||
g_param_spec_pointer ("evas-object", "Evas Object",
|
||||
"The Evas object where the display of the video will be done",
|
||||
G_PARAM_READWRITE));
|
||||
|
||||
g_object_class_install_property (gobject_class, PROP_WIDTH,
|
||||
g_param_spec_int ("width", "Width",
|
||||
"The width of the video",
|
||||
0, 65536, 0, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
|
||||
|
||||
g_object_class_install_property (gobject_class, PROP_HEIGHT,
|
||||
g_param_spec_int ("height", "Height",
|
||||
"The height of the video",
|
||||
0, 65536, 0, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
|
||||
|
||||
gobject_class->dispose = evas_video_sink_dispose;
|
||||
|
||||
gstbase_sink_class->set_caps = evas_video_sink_set_caps;
|
||||
gstbase_sink_class->stop = evas_video_sink_stop;
|
||||
gstbase_sink_class->start = evas_video_sink_start;
|
||||
gstbase_sink_class->unlock = evas_video_sink_unlock;
|
||||
gstbase_sink_class->unlock_stop = evas_video_sink_unlock_stop;
|
||||
gstbase_sink_class->render = evas_video_sink_render;
|
||||
gstbase_sink_class->preroll = evas_video_sink_preroll;
|
||||
|
||||
evas_video_sink_signals[REPAINT_REQUESTED] = g_signal_new("repaint-requested",
|
||||
G_TYPE_FROM_CLASS(klass),
|
||||
(GSignalFlags)(G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION),
|
||||
0,
|
||||
0,
|
||||
0,
|
||||
marshal_VOID__MINIOBJECT,
|
||||
G_TYPE_NONE, 1, GST_TYPE_BUFFER);
|
||||
}
|
||||
|
||||
gboolean
|
||||
gstreamer_plugin_init (GstPlugin * plugin)
|
||||
{
|
||||
return gst_element_register (plugin,
|
||||
"emotion-sink",
|
||||
GST_RANK_NONE,
|
||||
EVAS_TYPE_VIDEO_SINK);
|
||||
}
|
||||
|
||||
GstElement *
|
||||
gstreamer_video_sink_new(Emotion_Gstreamer_Video *ev,
|
||||
Evas_Object *o,
|
||||
const char *uri)
|
||||
{
|
||||
GstElement *playbin;
|
||||
GstElement *sink;
|
||||
Evas_Object *obj;
|
||||
GstStateChangeReturn res;
|
||||
|
||||
obj = _emotion_image_get(o);
|
||||
if (!obj)
|
||||
{
|
||||
ERR("Not Evas_Object specified");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
playbin = gst_element_factory_make("playbin2", "playbin");
|
||||
if (!playbin)
|
||||
{
|
||||
ERR("Unable to create 'playbin' GstElement.");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
sink = gst_element_factory_make("emotion-sink", "sink");
|
||||
if (!sink)
|
||||
{
|
||||
ERR("Unable to create 'emotion-sink' GstElement.");
|
||||
goto unref_pipeline;
|
||||
}
|
||||
|
||||
g_object_set(G_OBJECT(playbin), "video-sink", sink, NULL);
|
||||
g_object_set(G_OBJECT(playbin), "uri", uri, NULL);
|
||||
g_object_set(G_OBJECT(sink), "evas-object", obj, NULL);
|
||||
|
||||
res = gst_element_set_state(playbin, GST_STATE_PAUSED);
|
||||
if (res == GST_STATE_CHANGE_FAILURE)
|
||||
{
|
||||
ERR("Unable to set GST_STATE_PAUSED.");
|
||||
goto unref_pipeline;
|
||||
}
|
||||
|
||||
res = gst_element_get_state(playbin, NULL, NULL, GST_CLOCK_TIME_NONE);
|
||||
if (res != GST_STATE_CHANGE_SUCCESS)
|
||||
{
|
||||
ERR("Unable to get GST_CLOCK_TIME_NONE.");
|
||||
goto unref_pipeline;
|
||||
}
|
||||
|
||||
evas_object_data_set(obj, "_emotion_gstreamer_video", ev);
|
||||
|
||||
return playbin;
|
||||
|
||||
unref_pipeline:
|
||||
gst_object_unref(playbin);
|
||||
return NULL;
|
||||
}
|
Loading…
Reference in New Issue