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Call GstBaseVideoDecoder::start/stop during pad [de]activation.

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This commit is contained in:
Alessandro Decina 2009-10-02 12:40:02 +02:00
parent a6f616c1ee
commit 7dc185655f
1 changed files with 48 additions and 7 deletions
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55
gst-libs/gst/video/gstbasevideodecoder.c
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@ -30,6 +30,8 @@ GST_DEBUG_CATEGORY_EXTERN (basevideo_debug);
static void gst_base_video_decoder_finalize (GObject * object);
static gboolean gst_base_video_decoder_sink_activate_push (GstPad * pad,
gboolean active);
static gboolean gst_base_video_decoder_sink_setcaps (GstPad * pad,
GstCaps * caps);
static gboolean gst_base_video_decoder_sink_event (GstPad * pad,
@ -97,6 +99,8 @@ gst_base_video_decoder_init (GstBaseVideoDecoder * base_video_decoder,
pad = GST_BASE_VIDEO_CODEC_SINK_PAD (base_video_decoder);
gst_pad_set_activatepush_function (pad,
gst_base_video_decoder_sink_activate_push);
gst_pad_set_chain_function (pad, gst_base_video_decoder_chain);
gst_pad_set_event_function (pad, gst_base_video_decoder_sink_event);
gst_pad_set_setcaps_function (pad, gst_base_video_decoder_sink_setcaps);
@ -120,6 +124,50 @@ gst_base_video_decoder_init (GstBaseVideoDecoder * base_video_decoder,
base_video_decoder->sink_clipping = TRUE;
}
static gboolean
gst_base_video_decoder_sink_activate (GstBaseVideoDecoder * decoder,
gboolean active)
{
GstBaseVideoDecoderClass *klass;
gboolean result = FALSE;
GST_DEBUG_OBJECT (decoder, "activate");
klass = GST_BASE_VIDEO_DECODER_GET_CLASS (decoder);
if (active) {
if (klass->start)
result = klass->start (decoder);
} else {
/* We must make sure streaming has finished before resetting things
* and calling the ::stop vfunc */
GST_PAD_STREAM_LOCK (GST_BASE_VIDEO_CODEC_SINK_PAD (decoder));
GST_PAD_STREAM_UNLOCK (GST_BASE_VIDEO_CODEC_SINK_PAD (decoder));
if (klass->stop)
result = klass->stop (decoder);
}
GST_DEBUG_OBJECT (decoder, "activate: %d", result);
return result;
}
static gboolean
gst_base_video_decoder_sink_activate_push (GstPad * pad, gboolean active)
{
gboolean result = TRUE;
GstBaseVideoDecoder *base_video_decoder;
base_video_decoder = GST_BASE_VIDEO_DECODER (gst_pad_get_parent (pad));
result = gst_base_video_decoder_sink_activate (base_video_decoder, active);
gst_object_unref (base_video_decoder);
return result;
}
static gboolean
gst_base_video_decoder_sink_setcaps (GstPad * pad, GstCaps * caps)
{
@ -146,10 +194,6 @@ gst_base_video_decoder_sink_setcaps (GstPad * pad, GstCaps * caps)
base_video_decoder->codec_data = gst_value_get_buffer (codec_data);
}
if (base_video_decoder_class->start) {
base_video_decoder_class->start (base_video_decoder);
}
g_object_unref (base_video_decoder);
return TRUE;
@ -735,9 +779,6 @@ gst_base_video_decoder_change_state (GstElement * element,
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
if (base_video_decoder_class->stop) {
base_video_decoder_class->stop (base_video_decoder);
}
break;
default:
break;