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opusenc: allow setting most properties at PLAYING time

Browse source 
Opus allows these to be changed during encoding, transparently
to the decoder.
This commit is contained in:
Vincent Penquerc'h 2011-11-22 17:04:09 +00:00
parent 5367aa8dbf
commit 5e1df00674
2 changed files with 64 additions and 15 deletions
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76
ext/opus/gstopusenc.c
View file

@ -291,6 +291,8 @@ gst_opus_enc_finalize (GObject * object)
enc = GST_OPUS_ENC (object);
g_mutex_free (enc->property_lock);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
@ -301,6 +303,8 @@ gst_opus_enc_init (GstOpusEnc * enc, GstOpusEncClass * klass)
GST_DEBUG_OBJECT (enc, "init");
enc->property_lock = g_mutex_new ();
enc->n_channels = -1;
enc->sample_rate = -1;
enc->frame_samples = 0;
@ -329,6 +333,7 @@ gst_opus_enc_start (GstAudioEncoder * benc)
GST_DEBUG_OBJECT (enc, "start");
enc->tags = gst_tag_list_new ();
enc->header_sent = FALSE;
return TRUE;
}
@ -361,6 +366,18 @@ gst_opus_enc_get_latency (GstOpusEnc * enc)
return latency;
}
static void
gst_opus_enc_setup_base_class (GstOpusEnc * enc, GstAudioEncoder * benc)
{
gst_audio_encoder_set_latency (benc,
gst_opus_enc_get_latency (enc), gst_opus_enc_get_latency (enc));
gst_audio_encoder_set_frame_samples_min (benc,
enc->frame_samples * enc->n_channels * 2);
gst_audio_encoder_set_frame_samples_max (benc,
enc->frame_samples * enc->n_channels * 2);
gst_audio_encoder_set_frame_max (benc, 0);
}
static gint
gst_opus_enc_get_frame_samples (GstOpusEnc * enc)
{
@ -399,6 +416,8 @@ gst_opus_enc_set_format (GstAudioEncoder * benc, GstAudioInfo * info)
enc = GST_OPUS_ENC (benc);
g_mutex_lock (enc->property_lock);
enc->n_channels = GST_AUDIO_INFO_CHANNELS (info);
enc->sample_rate = GST_AUDIO_INFO_RATE (info);
GST_DEBUG_OBJECT (benc, "Setup with %d channels, %d Hz", enc->n_channels,
@ -415,13 +434,9 @@ gst_opus_enc_set_format (GstAudioEncoder * benc, GstAudioInfo * info)
enc->frame_samples = gst_opus_enc_get_frame_samples (enc);
/* feedback to base class */
gst_audio_encoder_set_latency (benc,
gst_opus_enc_get_latency (enc), gst_opus_enc_get_latency (enc));
gst_audio_encoder_set_frame_samples_min (benc,
enc->frame_samples * enc->n_channels * 2);
gst_audio_encoder_set_frame_samples_max (benc,
enc->frame_samples * enc->n_channels * 2);
gst_audio_encoder_set_frame_max (benc, 0);
gst_opus_enc_setup_base_class (enc, benc);
g_mutex_unlock (enc->property_lock);
return TRUE;
}
@ -494,9 +509,12 @@ gst_opus_enc_encode (GstOpusEnc * enc, GstBuffer * buf)
{
guint8 *bdata, *data, *mdata = NULL;
gsize bsize, size;
gsize bytes = enc->frame_samples * enc->n_channels * 2;
gsize bytes;
gint ret = GST_FLOW_OK;
g_mutex_lock (enc->property_lock);
bytes = enc->frame_samples * enc->n_channels * 2;
if (G_LIKELY (buf)) {
bdata = GST_BUFFER_DATA (buf);
bsize = GST_BUFFER_SIZE (buf);
@ -563,6 +581,8 @@ gst_opus_enc_encode (GstOpusEnc * enc, GstBuffer * buf)
done:
g_mutex_unlock (enc->property_lock);
if (mdata)
g_free (mdata);
@ -612,6 +632,8 @@ gst_opus_enc_get_property (GObject * object, guint prop_id, GValue * value,
enc = GST_OPUS_ENC (object);
g_mutex_lock (enc->property_lock);
switch (prop_id) {
case PROP_AUDIO:
g_value_set_boolean (value, enc->audio_or_voip);
@ -650,6 +672,8 @@ gst_opus_enc_get_property (GObject * object, guint prop_id, GValue * value,
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
g_mutex_unlock (enc->property_lock);
}
static void
@ -660,42 +684,64 @@ gst_opus_enc_set_property (GObject * object, guint prop_id,
enc = GST_OPUS_ENC (object);
#define GST_OPUS_UPDATE_PROPERTY(prop,type,ctl) do { \
g_mutex_lock (enc->property_lock); \
enc->prop = g_value_get_##type (value); \
if (enc->state) { \
opus_encoder_ctl (enc->state, OPUS_SET_##ctl (enc->prop)); \
} \
g_mutex_unlock (enc->property_lock); \
} while(0)
switch (prop_id) {
case PROP_AUDIO:
enc->audio_or_voip = g_value_get_boolean (value);
break;
case PROP_BITRATE:
enc->bitrate = g_value_get_int (value);
GST_OPUS_UPDATE_PROPERTY (bitrate, int, BITRATE);
break;
case PROP_BANDWIDTH:
enc->bandwidth = g_value_get_enum (value);
GST_OPUS_UPDATE_PROPERTY (bandwidth, enum, BANDWIDTH);
break;
case PROP_FRAME_SIZE:
g_mutex_lock (enc->property_lock);
enc->frame_size = g_value_get_enum (value);
enc->frame_samples = gst_opus_enc_get_frame_samples (enc);
gst_opus_enc_setup_base_class (enc, GST_AUDIO_ENCODER (enc));
g_mutex_unlock (enc->property_lock);
break;
case PROP_CBR:
/* this one has an opposite meaning to the opus ctl... */
g_mutex_lock (enc->property_lock);
enc->cbr = g_value_get_boolean (value);
opus_encoder_ctl (enc->state, OPUS_SET_VBR (!enc->cbr));
g_mutex_unlock (enc->property_lock);
break;
case PROP_CONSTRAINED_VBR:
enc->constrained_vbr = g_value_get_boolean (value);
GST_OPUS_UPDATE_PROPERTY (constrained_vbr, boolean, VBR_CONSTRAINT);
break;
case PROP_COMPLEXITY:
enc->complexity = g_value_get_int (value);
GST_OPUS_UPDATE_PROPERTY (complexity, int, COMPLEXITY);
break;
case PROP_INBAND_FEC:
enc->inband_fec = g_value_get_boolean (value);
GST_OPUS_UPDATE_PROPERTY (inband_fec, boolean, INBAND_FEC);
break;
case PROP_DTX:
enc->dtx = g_value_get_boolean (value);
GST_OPUS_UPDATE_PROPERTY (dtx, boolean, DTX);
break;
case PROP_PACKET_LOSS_PERCENT:
enc->packet_loss_percentage = g_value_get_int (value);
GST_OPUS_UPDATE_PROPERTY (packet_loss_percentage, int, PACKET_LOSS_PERC);
break;
case PROP_MAX_PAYLOAD_SIZE:
g_mutex_lock (enc->property_lock);
enc->max_payload_size = g_value_get_uint (value);
g_mutex_unlock (enc->property_lock);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
#undef GST_OPUS_UPDATE_PROPERTY
}

3
ext/opus/gstopusenc.h
View file

@ -52,6 +52,9 @@ struct _GstOpusEnc {
OpusEncoder *state;
/* Locks those properties which may be changed at play time */
GMutex *property_lock;
/* properties */
gboolean audio_or_voip;
gint bitrate;