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Merge pull request #127 from Rafostar/show-decoders

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API: Add video/audio decoder changed signals
This commit is contained in:
Rafał Dzięgiel
2021-08-01 11:02:28 +02:00
committed by GitHub
parent c53cde4d78 90844e49ad
commit c3cdabb050
1 changed files with 98 additions and 0 deletions
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98
lib/gst/clapper/gstclapper.c vendored
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@@ -36,7 +36,9 @@
#include <gst/gst.h>
#include <gst/video/video.h>
#include <gst/video/colorbalance.h>
#include <gst/video/gstvideodecoder.h>
#include <gst/audio/streamvolume.h>
#include <gst/audio/gstaudiodecoder.h>
#include <gst/tag/tag.h>
#include <gst/pbutils/descriptions.h>
@@ -112,6 +114,8 @@ enum
SIGNAL_VIDEO_DIMENSIONS_CHANGED,
SIGNAL_MEDIA_INFO_UPDATED,
SIGNAL_MUTE_CHANGED,
SIGNAL_VIDEO_DECODER_CHANGED,
SIGNAL_AUDIO_DECODER_CHANGED,
SIGNAL_LAST
};
@@ -181,6 +185,10 @@ struct _GstClapper
/* If should emit media info updated signal */
gboolean needs_info_update;
/* Prevent notify with the same decoders */
gchar *last_vdecoder;
gchar *last_adecoder;
/* For playbin3 */
gboolean use_playbin3;
GstStreamCollection *collection;
@@ -468,6 +476,16 @@ gst_clapper_class_init (GstClapperClass * klass)
g_signal_new ("warning", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_NO_RECURSE | G_SIGNAL_NO_HOOKS, 0, NULL,
NULL, NULL, G_TYPE_NONE, 1, G_TYPE_ERROR);
signals[SIGNAL_VIDEO_DECODER_CHANGED] =
g_signal_new ("video-decoder-changed", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_NO_RECURSE | G_SIGNAL_NO_HOOKS, 0, NULL,
NULL, NULL, G_TYPE_NONE, 1, G_TYPE_STRING);
signals[SIGNAL_AUDIO_DECODER_CHANGED] =
g_signal_new ("audio-decoder-changed", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_NO_RECURSE | G_SIGNAL_NO_HOOKS, 0, NULL,
NULL, NULL, G_TYPE_NONE, 1, G_TYPE_STRING);
}
static void
@@ -506,6 +524,8 @@ gst_clapper_finalize (GObject * object)
g_free (self->uri);
g_free (self->redirect_uri);
g_free (self->suburi);
g_free (self->last_vdecoder);
g_free (self->last_adecoder);
g_free (self->video_sid);
g_free (self->audio_sid);
g_free (self->subtitle_sid);
@@ -2929,6 +2949,79 @@ mute_notify_cb (G_GNUC_UNUSED GObject * obj, G_GNUC_UNUSED GParamSpec * pspec,
}
}
typedef struct
{
GstClapper *clapper;
gchar *decoder_name;
} DecoderChangedSignalData;
static void
video_decoder_changed_dispatch (gpointer user_data)
{
DecoderChangedSignalData *data = user_data;
if (data->clapper->inhibit_sigs)
return;
g_signal_emit (data->clapper, signals[SIGNAL_VIDEO_DECODER_CHANGED],
0, data->decoder_name);
}
static void
audio_decoder_changed_dispatch (gpointer user_data)
{
DecoderChangedSignalData *data = user_data;
if (data->clapper->inhibit_sigs)
return;
g_signal_emit (data->clapper, signals[SIGNAL_AUDIO_DECODER_CHANGED],
0, data->decoder_name);
}
static void
decoder_changed_signal_data_free (DecoderChangedSignalData * data)
{
g_object_unref (data->clapper);
g_free (data->decoder_name);
g_free (data);
}
static void
emit_decoder_changed (GstClapper * self, gchar * decoder_name,
gboolean is_video)
{
GstClapperSignalDispatcherFunc func = NULL;
if (is_video) {
if (g_signal_handler_find (self, G_SIGNAL_MATCH_ID,
signals[SIGNAL_VIDEO_DECODER_CHANGED], 0, NULL, NULL, NULL) != 0 &&
g_strcmp0 (self->last_vdecoder, decoder_name) != 0) {
func = video_decoder_changed_dispatch;
g_free (self->last_vdecoder);
self->last_vdecoder = g_strdup (decoder_name);
}
} else {
if (g_signal_handler_find (self, G_SIGNAL_MATCH_ID,
signals[SIGNAL_AUDIO_DECODER_CHANGED], 0, NULL, NULL, NULL) != 0 &&
g_strcmp0 (self->last_adecoder, decoder_name) != 0) {
func = audio_decoder_changed_dispatch;
g_free (self->last_adecoder);
self->last_adecoder = g_strdup (decoder_name);
}
}
if (func) {
DecoderChangedSignalData *data = g_new (DecoderChangedSignalData, 1);
data->clapper = g_object_ref (self);
data->decoder_name = g_strdup (decoder_name);
gst_clapper_signal_dispatcher_dispatch (self->signal_dispatcher, self,
func, data, (GDestroyNotify) decoder_changed_signal_data_free);
}
}
static void
element_setup_cb (GstElement * playbin, GstElement * element, GstClapper * self)
{
@@ -2941,6 +3034,11 @@ element_setup_cb (GstElement * playbin, GstElement * element, GstClapper * self)
if (plugin_name) {
GST_INFO_OBJECT (self, "Plugin setup: %s", plugin_name);
if (GST_IS_VIDEO_DECODER (element))
emit_decoder_changed (self, plugin_name, TRUE);
else if (GST_IS_AUDIO_DECODER (element))
emit_decoder_changed (self, plugin_name, FALSE);
/* TODO: Set plugin props */
}
g_free (plugin_name);