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Public Member Functions |
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| Alsa (ConfigFile *cf, int section) |
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| ~Alsa (void) |
| virtual int | Setup (void) |
| | Initialize the driver.
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| virtual int | Shutdown (void) |
| | Finalize the driver.
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| virtual int | ProcessMessage (QueuePointer &resp_queue, player_msghdr *hdr, void *data) |
| | Message handler.
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Private Member Functions |
| virtual void | Main (void) |
| | Main method for driver thread.
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void | SendStateMessage (void) |
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bool | AddStoredSample (StoredSample *newSample) |
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bool | AddStoredSample (player_audio_wav_t *waveData) |
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bool | AddStoredSample (const char *filePath) |
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StoredSample * | GetSampleAtIndex (int index) |
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void | ClearQueue (void) |
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bool | AddToQueue (QueueItem *newItem) |
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bool | AddToQueue (player_audio_wav_t *waveData) |
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bool | AddToQueue (AudioSample *sample) |
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bool | AddSilence (uint32_t time, AudioSample *format) |
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void | AdvanceQueue (void) |
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bool | SetupPlayBack (void) |
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bool | SetPBParams (AudioSample *sample) |
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void | PlaybackCallback (int numFrames) |
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bool | SetupRecord (void) |
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bool | SetRecParams (void) |
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bool | SetupRecordBuffer (uint32_t length) |
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void | RecordCallback (int numFrames) |
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void | HandleRecordedData (void) |
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void | PublishRecordedData (void) |
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void | StartPlayback (void) |
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void | StopPlayback (void) |
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void | StartRecording (void) |
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void | StopRecording (void) |
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bool | SetupMixer (void) |
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bool | EnumMixerElements (void) |
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bool | EnumElementCaps (MixerElement *element) |
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MixerElement * | SplitElements (MixerElement *elements, uint32_t &count) |
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MixerElement * | FilterElements (MixerElement *elements, uint32_t &count) |
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void | CleanUpMixerElements (MixerElement *elements, uint32_t count) |
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void | MixerDetailsToPlayer (player_audio_mixer_channel_list_detail_t *dest) |
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void | MixerLevelsToPlayer (player_audio_mixer_channel_list_t *dest) |
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void | SetElementLevel (uint32_t index, float level) |
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void | SetElementSwitch (uint32_t index, player_bool_t active) |
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void | PublishMixerData (void) |
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float | LevelToPlayer (long min, long max, long level) |
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long | LevelFromPlayer (long min, long max, float level) |
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void | PrintMixerElements (MixerElement *elements, uint32_t count) |
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int | HandleWavePlayCmd (player_audio_wav_t *waveData) |
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int | HandleSamplePlayCmd (player_audio_sample_item_t *data) |
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int | HandleRecordCmd (player_bool_t *data) |
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int | HandleMixerChannelCmd (player_audio_mixer_channel_list_t *data) |
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int | HandleSampleLoadReq (player_audio_sample_t *data, QueuePointer &resp_queue) |
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int | HandleSampleRetrieveReq (player_audio_sample_t *data, QueuePointer &resp_queue) |
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int | HandleSampleRecordReq (player_audio_sample_rec_req_t *data, QueuePointer &resp_queue) |
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int | HandleMixerChannelListReq (player_audio_mixer_channel_list_detail_t *data, QueuePointer &resp_queue) |
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int | HandleMixerChannelLevelReq (player_audio_mixer_channel_list_t *data, QueuePointer &resp_queue) |
Private Attributes |
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bool | useQueue |
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uint8_t | debugLevel |
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char ** | mixerFilters |
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bool | mixerFilterExact |
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char * | pbDevice |
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char * | mixerDevice |
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char * | recDevice |
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uint32_t | cfgPBPeriodTime |
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uint32_t | cfgPBBufferTime |
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uint32_t | silenceTime |
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uint32_t | cfgRecBufferTime |
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uint32_t | cfgRecStoreTime |
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uint32_t | cfgRecPeriodTime |
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uint8_t | recNumChannels |
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uint32_t | recSampleRate |
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uint8_t | recBits |
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snd_pcm_t * | pbHandle |
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int | numPBFDs |
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pollfd * | pbFDs |
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uint32_t | actPBBufferTime |
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uint32_t | actPBPeriodTime |
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snd_pcm_uframes_t | pbPeriodSize |
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uint8_t * | periodBuffer |
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snd_pcm_t * | recHandle |
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int | numRecFDs |
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pollfd * | recFDs |
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uint32_t | actRecBufferTime |
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uint32_t | actRecPeriodTime |
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snd_pcm_uframes_t | recPeriodSize |
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snd_mixer_t * | mixerHandle |
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MixerElement * | mixerElements |
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uint32_t | numElements |
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int | nextSampleIdx |
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StoredSample * | samplesHead |
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StoredSample * | samplesTail |
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QueueItem * | queueHead |
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QueueItem * | queueTail |
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PBState | playState |
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PBState | recState |
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uint32_t | recDataLength |
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uint32_t | recDataOffset |
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uint8_t * | recData |
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int | recDest |
| int Alsa::Setup |
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void |
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[virtual] |
Initialize the driver.
This function is called with the first client subscribes; it MUST be implemented by the driver.
- Returns:
- Returns 0 on success.
Implements Driver.
Definition at line 2156 of file alsa.cc.
References ClearQueue(), mixerDevice, mixerHandle, pbDevice, pbHandle, PLAYER_WARN, playState, recDevice, recHandle, recState, SetupMixer(), SetupPlayBack(), and SetupRecord().
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| int Alsa::Shutdown |
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void |
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[virtual] |
Finalize the driver.
This function is called with the last client unsubscribes; it MUST be implemented by the driver.
- Returns:
- Returns 0 on success.
Implements Driver.
Definition at line 2200 of file alsa.cc.
References CleanUpMixerElements(), ClearQueue(), mixerDevice, mixerElements, mixerHandle, numElements, pbFDs, pbHandle, periodBuffer, PLAYER_WARN, recData, recFDs, recHandle, StopPlayback(), StopRecording(), and Driver::StopThread().
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Message handler.
This function is called once for each message in the incoming queue. Reimplement it to provide message handling. Return 0 if you handled the message and -1 otherwise
- Parameters:
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| resp_queue | The queue to which any response should go. |
| hdr | The message header |
| data | The message body |
Reimplemented from Driver.
Definition at line 2582 of file alsa.cc.
References Driver::device_addr, HandleMixerChannelCmd(), HandleMixerChannelLevelReq(), HandleMixerChannelListReq(), HandleRecordCmd(), HandleSampleLoadReq(), HandleSamplePlayCmd(), HandleSampleRecordReq(), HandleSampleRetrieveReq(), HandleWavePlayCmd(), Message::MatchMessage(), mixerHandle, pbHandle, PLAYER_AUDIO_CMD_MIXER_CHANNEL, PLAYER_AUDIO_CMD_SAMPLE_PLAY, PLAYER_AUDIO_CMD_WAV_PLAY, PLAYER_AUDIO_CMD_WAV_STREAM_REC, PLAYER_AUDIO_REQ_MIXER_CHANNEL_LEVEL, PLAYER_AUDIO_REQ_MIXER_CHANNEL_LIST, PLAYER_AUDIO_REQ_SAMPLE_LOAD, PLAYER_AUDIO_REQ_SAMPLE_REC, PLAYER_AUDIO_REQ_SAMPLE_RETRIEVE, PLAYER_MSGTYPE_CMD, PLAYER_MSGTYPE_REQ, and recHandle.
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| void Alsa::Main |
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void |
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[private, virtual] |
Main method for driver thread.
drivers have their own thread of execution, created using StartThread(); this is the entry point for the driver thread, and must be overloaded by all threaded drivers.
Reimplemented from Driver.
Definition at line 2264 of file alsa.cc.
References AdvanceQueue(), Driver::InQueue, numPBFDs, numRecFDs, pbFDs, pbHandle, pbPeriodSize, PlaybackCallback(), PLAYER_WARN1, playState, Driver::ProcessMessages(), queueHead, recFDs, RecordCallback(), recPeriodSize, recState, QueueItem::sample, SendStateMessage(), and SetPBParams().
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