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omxaudiodec: Implement setting of fallback channel positions

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This commit is contained in:
Sebastian Dröge 2014-07-13 22:15:18 +02:00
parent 03cf0bc9a4
commit 08385fe944
4 changed files with 110 additions and 0 deletions
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64
omx/gstomxaacdec.c
View file

@ -35,6 +35,8 @@ static gboolean gst_omx_aac_dec_is_format_change (GstOMXAudioDec * dec,
GstOMXPort * port, GstCaps * caps);
static gint gst_omx_aac_dec_get_samples_per_frame (GstOMXAudioDec * dec,
GstOMXPort * port);
static gboolean gst_omx_aac_dec_get_channel_positions (GstOMXAudioDec * dec,
GstOMXPort * port, GstAudioChannelPosition position[OMX_AUDIO_MAXCHANNELS]);
/* class initialization */
@ -56,6 +58,8 @@ gst_omx_aac_dec_class_init (GstOMXAACDecClass * klass)
GST_DEBUG_FUNCPTR (gst_omx_aac_dec_is_format_change);
audiodec_class->get_samples_per_frame =
GST_DEBUG_FUNCPTR (gst_omx_aac_dec_get_samples_per_frame);
audiodec_class->get_channel_positions =
GST_DEBUG_FUNCPTR (gst_omx_aac_dec_get_channel_positions);
audiodec_class->cdata.default_sink_template_caps = "audio/mpeg, "
"mpegversion=(int){2, 4}, "
@ -228,3 +232,63 @@ gst_omx_aac_dec_get_samples_per_frame (GstOMXAudioDec * dec, GstOMXPort * port)
{
return GST_OMX_AAC_DEC (dec)->spf;
}
static gboolean
gst_omx_aac_dec_get_channel_positions (GstOMXAudioDec * dec,
GstOMXPort * port, GstAudioChannelPosition position[OMX_AUDIO_MAXCHANNELS])
{
OMX_AUDIO_PARAM_PCMMODETYPE pcm_param;
OMX_ERRORTYPE err;
GST_OMX_INIT_STRUCT (&pcm_param);
pcm_param.nPortIndex = port->index;
err =
gst_omx_component_get_parameter (dec->dec, OMX_IndexParamAudioPcm,
&pcm_param);
if (err != OMX_ErrorNone) {
GST_ERROR_OBJECT (dec, "Failed to get PCM parameters: %s (0x%08x)",
gst_omx_error_to_string (err), err);
return FALSE;
}
/* FIXME: Rather arbitrary values here, based on what we do in gstfaac.c */
switch (pcm_param.nChannels) {
case 1:
position[0] = GST_AUDIO_CHANNEL_POSITION_MONO;
break;
case 2:
position[0] = GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT;
position[1] = GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT;
break;
case 3:
position[0] = GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER;
position[1] = GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT;
position[2] = GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT;
break;
case 4:
position[0] = GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER;
position[1] = GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT;
position[2] = GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT;
position[3] = GST_AUDIO_CHANNEL_POSITION_REAR_CENTER;
break;
case 5:
position[0] = GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER;
position[1] = GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT;
position[2] = GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT;
position[3] = GST_AUDIO_CHANNEL_POSITION_REAR_LEFT;
position[4] = GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT;
break;
case 6:
position[0] = GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER;
position[1] = GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT;
position[2] = GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT;
position[3] = GST_AUDIO_CHANNEL_POSITION_REAR_LEFT;
position[4] = GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT;
position[5] = GST_AUDIO_CHANNEL_POSITION_LFE1;
break;
default:
return FALSE;
}
return TRUE;
}

8
omx/gstomxaudiodec.c
View file

@ -310,6 +310,7 @@ gst_omx_audio_dec_loop (GstOMXAudioDec * self)
OMX_PARAM_PORTDEFINITIONTYPE port_def;
OMX_AUDIO_PARAM_PCMMODETYPE pcm_param;
GstAudioChannelPosition omx_position[OMX_AUDIO_MAXCHANNELS];
GstOMXAudioDecClass *klass = GST_OMX_AUDIO_DEC_GET_CLASS (self);
gint i;
GST_DEBUG_OBJECT (self, "Port settings have changed, updating caps");
@ -398,6 +399,13 @@ gst_omx_audio_dec_loop (GstOMXAudioDec * self)
&& omx_position[0] == GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER)
omx_position[0] = GST_AUDIO_CHANNEL_POSITION_MONO;
if (omx_position[0] == GST_AUDIO_CHANNEL_POSITION_NONE
&& klass->get_channel_positions) {
GST_WARNING_OBJECT (self,
"Failed to get a valid channel layout, trying fallback");
klass->get_channel_positions (self, self->dec_out_port, omx_position);
}
memcpy (self->position, omx_position, sizeof (omx_position));
gst_audio_channel_positions_to_valid_order (self->position,
pcm_param.nChannels);

1
omx/gstomxaudiodec.h
View file

@ -91,6 +91,7 @@ struct _GstOMXAudioDecClass
gboolean (*is_format_change) (GstOMXAudioDec * self, GstOMXPort * port, GstCaps * caps);
gboolean (*set_format) (GstOMXAudioDec * self, GstOMXPort * port, GstCaps * caps);
gint (*get_samples_per_frame) (GstOMXAudioDec * self, GstOMXPort * port);
gboolean (*get_channel_positions) (GstOMXAudioDec * self, GstOMXPort * port, GstAudioChannelPosition position[OMX_AUDIO_MAXCHANNELS]);
};
GType gst_omx_audio_dec_get_type (void);

37
omx/gstomxmp3dec.c
View file

@ -35,6 +35,8 @@ static gboolean gst_omx_mp3_dec_is_format_change (GstOMXAudioDec * dec,
GstOMXPort * port, GstCaps * caps);
static gint gst_omx_mp3_dec_get_samples_per_frame (GstOMXAudioDec * dec,
GstOMXPort * port);
static gboolean gst_omx_mp3_dec_get_channel_positions (GstOMXAudioDec * dec,
GstOMXPort * port, GstAudioChannelPosition position[OMX_AUDIO_MAXCHANNELS]);
/* class initialization */
@ -57,6 +59,8 @@ gst_omx_mp3_dec_class_init (GstOMXMP3DecClass * klass)
GST_DEBUG_FUNCPTR (gst_omx_mp3_dec_is_format_change);
audiodec_class->get_samples_per_frame =
GST_DEBUG_FUNCPTR (gst_omx_mp3_dec_get_samples_per_frame);
audiodec_class->get_channel_positions =
GST_DEBUG_FUNCPTR (gst_omx_mp3_dec_get_channel_positions);
audiodec_class->cdata.default_sink_template_caps = "audio/mpeg, "
"mpegversion=(int)1, "
@ -207,3 +211,36 @@ gst_omx_mp3_dec_get_samples_per_frame (GstOMXAudioDec * dec, GstOMXPort * port)
{
return GST_OMX_MP3_DEC (dec)->spf;
}
static gboolean
gst_omx_mp3_dec_get_channel_positions (GstOMXAudioDec * dec,
GstOMXPort * port, GstAudioChannelPosition position[OMX_AUDIO_MAXCHANNELS])
{
OMX_AUDIO_PARAM_PCMMODETYPE pcm_param;
OMX_ERRORTYPE err;
GST_OMX_INIT_STRUCT (&pcm_param);
pcm_param.nPortIndex = port->index;
err =
gst_omx_component_get_parameter (dec->dec, OMX_IndexParamAudioPcm,
&pcm_param);
if (err != OMX_ErrorNone) {
GST_ERROR_OBJECT (dec, "Failed to get PCM parameters: %s (0x%08x)",
gst_omx_error_to_string (err), err);
return FALSE;
}
switch (pcm_param.nChannels) {
case 1:
position[0] = GST_AUDIO_CHANNEL_POSITION_MONO;
break;
case 2:
position[0] = GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT;
position[1] = GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT;
break;
default:
return FALSE;
}
return TRUE;
}