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vorbisdec: reset decoder on vorbis headers update

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if the vorbis encoder receives new headers it must be
reset and re-initialized to continue decoding, e. g.
for live streams
This commit is contained in:
Jochen Henneberg 2017-02-09 12:44:51 +00:00 committed by Sebastian Dröge
parent bb051c14b3
commit b95725c37e
1 changed files with 23 additions and 14 deletions
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37
ext/vorbis/gstvorbisdec.c
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@ -79,6 +79,7 @@ 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 vorbis_dec_reset (GstAudioDecoder * dec);
static void
gst_vorbis_dec_class_init (GstVorbisDecClass * klass)
@ -582,8 +583,8 @@ vorbis_dec_handle_frame (GstAudioDecoder * dec, GstBuffer * buffer)
/* switch depending on packet type */
if ((gst_ogg_packet_data (packet))[0] & 1) {
if (vd->initialized) {
GST_WARNING_OBJECT (vd, "Already initialized, so ignoring header packet");
goto done;
GST_INFO_OBJECT (vd, "already initialized, re-init");
vorbis_dec_reset (dec);
}
result = vorbis_handle_header_packet (vd, packet);
if (result != GST_FLOW_OK)
@ -633,6 +634,23 @@ vorbis_dec_flush (GstAudioDecoder * dec, gboolean hard)
#endif
}
static void
vorbis_dec_reset (GstAudioDecoder * dec)
{
GstVorbisDec *vd = GST_VORBIS_DEC (dec);
vd->initialized = FALSE;
#ifndef USE_TREMOLO
vorbis_block_clear (&vd->vb);
#endif
vorbis_dsp_clear (&vd->vd);
vorbis_comment_clear (&vd->vc);
vorbis_info_clear (&vd->vi);
vorbis_info_init (&vd->vi);
vorbis_comment_init (&vd->vc);
}
static gboolean
vorbis_dec_set_format (GstAudioDecoder * dec, GstCaps * caps)
{
@ -644,18 +662,9 @@ vorbis_dec_set_format (GstAudioDecoder * dec, GstCaps * caps)
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);
/* We need to free and re-init libvorbis,
* or it chokes */
vorbis_dec_reset (dec);
return TRUE;
}