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vorbisdec: Re-init on new caps

Browse source 
If we get new input caps, then reset the decoder
ready for new headers and fresh data. Makes
chained oggs work when reusing the decoder.
This commit is contained in:
Jan Schmidt 2015-11-11 00:59:16 +11:00
parent 0b98ed32ce
commit 797a0ca376
1 changed files with 29 additions and 0 deletions
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29
ext/vorbis/gstvorbisdec.c
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@ -78,6 +78,7 @@ static gboolean vorbis_dec_stop (GstAudioDecoder * dec);
static GstFlowReturn vorbis_dec_handle_frame (GstAudioDecoder * dec,
GstBuffer * buffer);
static void vorbis_dec_flush (GstAudioDecoder * dec, gboolean hard);
static gboolean vorbis_dec_set_format (GstAudioDecoder * dec, GstCaps * caps);
static void
gst_vorbis_dec_class_init (GstVorbisDecClass * klass)
@ -102,6 +103,7 @@ gst_vorbis_dec_class_init (GstVorbisDecClass * klass)
base_class->start = GST_DEBUG_FUNCPTR (vorbis_dec_start);
base_class->stop = GST_DEBUG_FUNCPTR (vorbis_dec_stop);
base_class->set_format = GST_DEBUG_FUNCPTR (vorbis_dec_set_format);
base_class->handle_frame = GST_DEBUG_FUNCPTR (vorbis_dec_handle_frame);
base_class->flush = GST_DEBUG_FUNCPTR (vorbis_dec_flush);
}
@ -632,3 +634,30 @@ vorbis_dec_flush (GstAudioDecoder * dec, gboolean hard)
vorbis_synthesis_restart (&vd->vd);
#endif
}
static gboolean
vorbis_dec_set_format (GstAudioDecoder * dec, GstCaps * caps)
{
GstVorbisDec *vd = GST_VORBIS_DEC (dec);
GST_DEBUG_OBJECT (vd, "New caps %" GST_PTR_FORMAT " - resetting", caps);
/* A set_format call implies new data with new header packets */
if (!vd->initialized)
return TRUE;
vd->initialized = FALSE;
#ifndef USE_TREMOLO
vorbis_block_clear (&vd->vb);
#endif
vorbis_dsp_clear (&vd->vd);
/* We need to free and re-init these,
* or libvorbis chokes */
vorbis_comment_clear (&vd->vc);
vorbis_info_clear (&vd->vi);
vorbis_info_init (&vd->vi);
vorbis_comment_init (&vd->vc);
return TRUE;
}