mirror of
https://github.com/gnif/LookingGlass.git
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[client] audio/pw: implement record support
This commit is contained in:
Geoffrey McRae
parent
52f06ec332
commit
7263159428
1 changed files with 176 additions and 17 deletions
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@ -27,6 +27,7 @@
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#include "common/debug.h"
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#include "common/ringbuffer.h"
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#include "common/util.h"
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struct PipeWire
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{
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@ -45,11 +46,24 @@ struct PipeWire
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bool active;
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}
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playback;
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struct
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{
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struct pw_stream * stream;
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int channels;
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int sampleRate;
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int stride;
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void (*dataFn)(uint8_t * data, size_t size);
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bool active;
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}
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record;
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};
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static struct PipeWire pw = {0};
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static void pipewire_on_process(void * userdata)
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static void pipewire_onPlaybackProcess(void * userdata)
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{
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struct pw_buffer * pbuf;
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@ -130,20 +144,6 @@ static void pipewire_playbackStopStream(void)
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pw_thread_loop_unlock(pw.thread);
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}
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static void pipewire_free(void)
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{
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pipewire_playbackStopStream();
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pw_thread_loop_stop(pw.thread);
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pw_thread_loop_destroy(pw.thread);
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pw_loop_destroy(pw.loop);
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pw.loop = NULL;
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pw.thread = NULL;
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ringbuffer_free(&pw.playback.buffer);
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pw_deinit();
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}
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static void pipewire_playbackStart(int channels, int sampleRate)
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{
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const struct spa_pod * params[1];
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@ -152,7 +152,7 @@ static void pipewire_playbackStart(int channels, int sampleRate)
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static const struct pw_stream_events events =
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{
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.version = PW_VERSION_STREAM_EVENTS,
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.process = pipewire_on_process
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.process = pipewire_onPlaybackProcess
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};
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if (pw.playback.stream &&
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@ -165,7 +165,8 @@ static void pipewire_playbackStart(int channels, int sampleRate)
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pw.playback.channels = channels;
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pw.playback.sampleRate = sampleRate;
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pw.playback.stride = sizeof(uint16_t) * channels;
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pw.playback.buffer = ringbuffer_new(sampleRate / 10, channels * sizeof(uint16_t));
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pw.playback.buffer = ringbuffer_new(sampleRate / 10,
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channels * sizeof(uint16_t));
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pw_thread_loop_lock(pw.thread);
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pw.playback.stream = pw_stream_new_simple(
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@ -269,6 +270,157 @@ static void pipewire_playbackMute(bool mute)
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pw_thread_loop_unlock(pw.thread);
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}
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static void pipewire_recordStopStream(void)
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{
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if (!pw.record.stream)
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return;
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pw_thread_loop_lock(pw.thread);
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pw_stream_flush(pw.record.stream, true);
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pw_stream_destroy(pw.record.stream);
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pw.record.stream = NULL;
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pw_thread_loop_unlock(pw.thread);
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}
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static void pipewire_onRecordProcess(void * userdata)
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{
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struct pw_buffer * pbuf;
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if (!(pbuf = pw_stream_dequeue_buffer(pw.record.stream)))
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{
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DEBUG_WARN("out of buffers");
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return;
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}
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struct spa_buffer * sbuf = pbuf->buffer;
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uint8_t * dst;
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if (!(dst = sbuf->datas[0].data))
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return;
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dst += sbuf->datas[0].chunk->offset;
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pw.record.dataFn(dst,
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min(
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sbuf->datas[0].chunk->size,
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sbuf->datas[0].maxsize - sbuf->datas[0].chunk->offset)
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);
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pw_stream_queue_buffer(pw.record.stream, pbuf);
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}
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static void pipewire_recordStart(int channels, int sampleRate,
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void (*dataFn)(uint8_t * data, size_t size))
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{
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const struct spa_pod * params[1];
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uint8_t buffer[1024];
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struct spa_pod_builder b = SPA_POD_BUILDER_INIT(buffer, sizeof(buffer));
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static const struct pw_stream_events events =
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{
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.version = PW_VERSION_STREAM_EVENTS,
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.process = pipewire_onRecordProcess
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};
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if (pw.record.stream &&
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pw.record.channels == channels &&
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pw.record.sampleRate == sampleRate)
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return;
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pipewire_recordStopStream();
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pw.record.channels = channels;
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pw.record.sampleRate = sampleRate;
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pw.record.stride = sizeof(uint16_t) * channels;
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pw.record.dataFn = dataFn;
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pw_thread_loop_lock(pw.thread);
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pw.record.stream = pw_stream_new_simple(
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pw.loop,
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"Looking Glass",
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pw_properties_new(
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PW_KEY_NODE_NAME , "Looking Glass",
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PW_KEY_MEDIA_TYPE , "Audio",
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PW_KEY_MEDIA_CATEGORY, "Capture",
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PW_KEY_MEDIA_ROLE , "Music",
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NULL
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),
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&events,
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NULL
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);
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if (!pw.record.stream)
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{
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pw_thread_loop_unlock(pw.thread);
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DEBUG_ERROR("Failed to create the stream");
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return;
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}
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params[0] = spa_format_audio_raw_build(&b, SPA_PARAM_EnumFormat,
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&SPA_AUDIO_INFO_RAW_INIT(
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.format = SPA_AUDIO_FORMAT_S16,
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.channels = channels,
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.rate = sampleRate
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));
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pw_stream_connect(
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pw.record.stream,
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PW_DIRECTION_INPUT,
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PW_ID_ANY,
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PW_STREAM_FLAG_AUTOCONNECT |
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PW_STREAM_FLAG_MAP_BUFFERS |
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PW_STREAM_FLAG_RT_PROCESS,
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params, 1);
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pw_thread_loop_unlock(pw.thread);
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}
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static void pipewire_recordStop(void)
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{
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if (!pw.record.active)
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return;
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pw_thread_loop_lock(pw.thread);
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pw_stream_set_active(pw.record.stream, false);
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pw.record.active = false;
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pw_thread_loop_unlock(pw.thread);
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}
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static void pipewire_recordVolume(int channels, const uint16_t volume[])
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{
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if (channels != pw.record.channels)
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return;
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float param[channels];
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for(int i = 0; i < channels; ++i)
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param[i] = 9.3234e-7 * pow(1.000211902, volume[i]) - 0.000172787;
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pw_thread_loop_lock(pw.thread);
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pw_stream_set_control(pw.record.stream, SPA_PROP_channelVolumes,
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channels, param, 0);
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pw_thread_loop_unlock(pw.thread);
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}
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static void pipewire_recordMute(bool mute)
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{
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pw_thread_loop_lock(pw.thread);
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pw_stream_set_control(pw.record.stream, SPA_PROP_mute, 1, (void *)&mute, 0);
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pw_thread_loop_unlock(pw.thread);
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}
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static void pipewire_free(void)
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{
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pipewire_playbackStopStream();
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pipewire_recordStopStream();
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pw_thread_loop_stop(pw.thread);
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pw_thread_loop_destroy(pw.thread);
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pw_loop_destroy(pw.loop);
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pw.loop = NULL;
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pw.thread = NULL;
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ringbuffer_free(&pw.playback.buffer);
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pw_deinit();
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}
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struct LG_AudioDevOps LGAD_PipeWire =
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{
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.name = "PipeWire",
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@ -281,5 +433,12 @@ struct LG_AudioDevOps LGAD_PipeWire =
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.stop = pipewire_playbackStop,
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.volume = pipewire_playbackVolume,
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.mute = pipewire_playbackMute
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},
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.record =
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{
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.start = pipewire_recordStart,
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.stop = pipewire_recordStop,
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.volume = pipewire_recordVolume,
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.mute = pipewire_recordMute
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}
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};
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