/****************************************************************************
DESCRIPTION
This function connects a synchronous audio stream to the pcm subsystem
*/
void CsrSbcEncoderPluginConnect( Sink audio_sink , Task codec_task , uint16 volume , uint32 rate , bool stereo , AUDIO_MODE_T mode , const void * params )
{
/* DSP Application loading and Transform starting is handled by a call to A2dpAudioCodecEnable
in the application, so should not be done here. */
typedef struct
{
unsigned source_type:4;
unsigned reserved:4;
uint8 content_protection;
uint32 voice_rate;
unsigned bitpool:8;
unsigned format:8;
uint16 packet_size;
Sink media_sink_b;
} sbc_codec_data_type;
sbc_codec_data_type *sbc_codecData = (sbc_codec_data_type *) params;
if (!sbc_codecData)
Panic();
SBC = (SBC_t*)PanicUnlessMalloc (sizeof (SBC_t) ) ;
SBC->media_sink[0] = audio_sink ;
SBC->codec_task = codec_task ;
SBC->media_sink[1] = sbc_codecData->media_sink_b;
SBC->packet_size = sbc_codecData->packet_size;
StreamDisconnect(StreamKalimbaSource(2), 0);
/* Initialise the RTP SBC encoder */
SBC->t[0] = TransformRtpSbcEncode(StreamKalimbaSource(2), audio_sink);
/* Configure the RTP transform to generate the selected packet size */
TransformConfigure(SBC->t[0], VM_TRANSFORM_RTP_SBC_ENCODE_PACKET_SIZE, sbc_codecData->packet_size);
/* Transform should not manage timings. */
TransformConfigure(SBC->t[0], VM_TRANSFORM_RTP_SBC_ENCODE_MANAGE_TIMING, FALSE);
/* Start the transform */
(void) TransformStart(SBC->t[0]);
PRINT(("Audio Plugin: TransformStart sink:0x%x\n",(uint16)audio_sink));
if (SBC->media_sink[1])
{
/* There is a 2nd audio stream so initialise this transform */
StreamDisconnect(StreamKalimbaSource(3), 0);
/* Initialise the RTP SBC encoder */
SBC->t[1] = TransformRtpSbcEncode(StreamKalimbaSource(3), SBC->media_sink[1]);
/* Configure the RTP transform to generate the selected packet size */
TransformConfigure(SBC->t[1], VM_TRANSFORM_RTP_SBC_ENCODE_PACKET_SIZE, sbc_codecData->packet_size);
/* Transform should not manage timings. */
TransformConfigure(SBC->t[1], VM_TRANSFORM_RTP_SBC_ENCODE_MANAGE_TIMING, FALSE);
/* Start the transform */
(void) TransformStart(SBC->t[1]);
PRINT(("Audio Plugin: TransformStart sink:0x%x\n",(uint16)SBC->media_sink[1]));
}
/* Configure SBC encoding format */
if (!KalimbaSendMessage(KALIMBA_MSG_SBCENC_SET_PARAMS, sbc_codecData->format, 0, 0, 0))
/* If message fails to get through, abort */
Panic();
/* Pass bit pool value to DSP */
if (!KalimbaSendMessage(KALIMBA_MSG_SBCENC_SET_BITPOOL, sbc_codecData->bitpool, 0, 0, 0))
/* If message fails to get through, abort */
Panic();
/* disard any data sent by the SNK */
StreamConnectDispose(StreamSourceFromSink(audio_sink));
if (SBC->media_sink[1])
{
/* disard any data sent by the 2nd SNK */
StreamConnectDispose(StreamSourceFromSink(SBC->media_sink[1]));
}
/* select the source type */
if(sbc_codecData->source_type == SourceUsb)
{
PRINT(("Audio Plugin: SourceUsb\n"));
/* Select the source type */
PanicFalse(KalimbaSendMessage(KALIMBA_ENCODER_SELECT, 0x0001, 0, 0, 0));
}
else
{
PRINT(("Audio Plugin: SourceAnalog\n"));
/* For analogue input source */
StreamDisconnect(StreamPcmSource(0), StreamPcmSink(0));
StreamDisconnect(StreamPcmSource(1), StreamPcmSink(1));
(void)PcmClearAllRouting();
if (CodecGetCodecType(codec_task) == codec_wm8731)
{
PRINT(("Audio Plugin: codec_wm8731\n"));
/* configure slot 0 and 1 to be left and right channel
and synchronise the offsets for stereo playback */
(void)PcmRateAndRoute(0, PCM_NO_SYNC, (uint32) rate, (uint32) rate, VM_PCM_EXTERNAL_I2S);
(void)PcmRateAndRoute(1, 0, (uint32) rate, (uint32) rate, VM_PCM_EXTERNAL_I2S);
}
else
{
PRINT(("Audio Plugin: codec_internal\n"));
/* configure slot 0 and 1 to be left and right channel
and synchronise the offsets for stereo playback */
(void)PcmRateAndRoute(0, PCM_NO_SYNC, (uint32) rate, (uint32) rate, VM_PCM_INTERNAL_A);
(void)PcmRateAndRoute(1, 0, (uint32) rate, (uint32) rate, VM_PCM_INTERNAL_B);
}
/* plug Left ADC into port 0 */
(void)StreamConnect(StreamPcmSource(0),StreamKalimbaSink(0));
/* plug Right ADC into port 1 */
(void)StreamConnect(StreamPcmSource(1),StreamKalimbaSink(1));
/* Select the source type */
PanicFalse(KalimbaSendMessage(KALIMBA_ENCODER_SELECT, 0x0002, 0, 0, 0));
if(!KalimbaSendMessage(KALIMBA_MSG_GO,0,0,0,0))
{
PRINT(("SBC: Message KALIMBA_MSG_GO failed!\n"));
Panic();
}
}
/* Select the source type */
/*PanicFalse(KalimbaSendMessage(KALIMBA_SOURCE_SELECT, SOURCE_USB, 0, 0, 0)); */
/*CsrSbcEncoderUsbPluginSetVolume(volume) ;*/
/*(void) StreamConnect(PanicNull(StreamUsbEndPointSource(end_point_iso_in)), StreamKalimbaSink(0));
*/
/* Start decode */
/* if(!KalimbaSendMessage(KALIMBA_MSG_GO,0,0,0,0))
{
PRINT(("SBC: Message KALIMBA_MSG_GO failed!\n"));
Panic();
}
*/
}
void A2dpStartKalimbaStreaming(const A2DP *a2dp, uint16 media_sink)
{
FILE_INDEX index = FILE_NONE;
#ifdef BUILD_FOR_23FW
Transform t;
#else
Transform t, l_t, r_t;
Source l_src = StreamAudioSource(AUDIO_HARDWARE_CODEC, AUDIO_INSTANCE_0, AUDIO_CHANNEL_A);
Source r_src = StreamAudioSource(AUDIO_HARDWARE_CODEC, AUDIO_INSTANCE_1, AUDIO_CHANNEL_B);
Sink l_snk = StreamAudioSink(AUDIO_HARDWARE_CODEC, AUDIO_INSTANCE_0, AUDIO_CHANNEL_A);
Sink r_snk = StreamAudioSink(AUDIO_HARDWARE_CODEC, AUDIO_INSTANCE_1, AUDIO_CHANNEL_B);
#endif
/* load SBC codec */
index = FileFind(FILE_ROOT, sbc_encoder, sizeof(sbc_encoder)-1);
if (!KalimbaLoad(index))
/* codec load failure, Panic as the test isn't going to work now */
Panic();
/* Init and configure RTP */
t = TransformRtpSbcEncode(StreamKalimbaSource(0), (Sink)media_sink);
TransformConfigure(t, VM_TRANSFORM_RTP_SBC_ENCODE_PACKET_SIZE, 668);
TransformConfigure(t, VM_TRANSFORM_RTP_SBC_ENCODE_MANAGE_TIMING, FALSE);
(void)TransformStart(t);
/* Configure SBC encoding format */
(void)PanicFalse(KalimbaSendMessage(KALIMBA_MSG_SBCENC_SET_PARAMS, 0x00bd, 0, 0, 0));
(void)PanicFalse(KalimbaSendMessage(KALIMBA_MSG_SBCENC_SET_BITPOOL, 0x0030, 0, 0, 0));
#ifdef BUILD_FOR_23FW
StreamDisconnect(StreamPcmSource(0), StreamPcmSink(0));
StreamDisconnect(StreamPcmSource(1), StreamPcmSink(1));
/* set up ADCs */
(void)PcmClearAllRouting();
(void)PanicFalse(PcmRateAndRoute(0, PCM_NO_SYNC, 44100, 44100, VM_PCM_INTERNAL_A));
(void)PanicFalse(PcmRateAndRoute(1, 0, 44100, 44100, VM_PCM_INTERNAL_B));
(void)PanicFalse(StreamConnect(StreamPcmSource(0),StreamKalimbaSink(0)));
(void)PanicFalse(StreamConnect(StreamPcmSource(1),StreamKalimbaSink(1)));
#else
SourceClose(l_src);
SourceClose(r_src);
SinkClose(l_snk);
SinkClose(r_snk);
(void) SourceConfigure(l_src, STREAM_CODEC_INPUT_RATE, 44100);
(void) SourceConfigure(r_src, STREAM_CODEC_INPUT_RATE, 44100);
(void) SourceSynchronise(l_src, r_src);
/* set up ADCs */
l_t = StreamConnect(l_src, StreamKalimbaSink(0));
r_t = StreamConnect(r_src, StreamKalimbaSink(1));
(void)TransformStart(l_t);
(void)TransformStart(r_t);
#endif
/* Start decode */
(void) PanicFalse(KalimbaSendMessage(KALIMBA_MSG_GO,0,0,0,0));
}
/****************************************************************************
DESCRIPTION
Set the mode
*/
void CsrSbcEncoderPluginSetMode ( AUDIO_MODE_T mode , const void * params )
{
typedef struct
{
bool connect_sink;
Sink media_sink;
} sbc_mode_params;
sbc_mode_params *sbc_mode = (sbc_mode_params *) params;
uint16 i;
if (!SBC)
Panic() ;
PRINT(("Audio Plugin: Set Mode\n"));
if (sbc_mode->connect_sink)
{
/* A second audio sink has been connected */
for (i = 0; i < MAX_AUDIO_SINKS; i++)
{
if (SBC->media_sink[i] == 0)
{
/* store the audio sink */
SBC->media_sink[i] = sbc_mode->media_sink;
/* Initialise the RTP SBC encoder */
SBC->t[i] = TransformRtpSbcEncode(StreamKalimbaSource(i+2), SBC->media_sink[i]);
/* Configure the RTP transform to generate the selected packet size */
TransformConfigure(SBC->t[i], VM_TRANSFORM_RTP_SBC_ENCODE_PACKET_SIZE, SBC->packet_size);
/* Transform should not manage timings. */
TransformConfigure(SBC->t[i], VM_TRANSFORM_RTP_SBC_ENCODE_MANAGE_TIMING, FALSE);
/* Start the transform */
(void) TransformStart(SBC->t[i]);
PRINT(("Audio Plugin: Start new Transform i:%d sink:0x%x\n",i,(uint16)SBC->media_sink[i]));
}
}
}
else
{
/* An audio sink has been disconnected */
for (i = 0; i < MAX_AUDIO_SINKS; i++)
{
if (SBC->media_sink[i] == sbc_mode->media_sink)
{
/* Disconnect the Kalimba source from the media sink */
StreamDisconnect(StreamKalimbaSource(i+2), SBC->media_sink[i]);
PRINT(("Audio Plugin: Disconnect media i:%d sink:0x%x\n",i,(uint16)SBC->media_sink[i]));
/* clear the audio sink */
SBC->media_sink[i] = 0;
}
}
}
free(sbc_mode);
}