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Add opus/flac audio options (only supported my mp4/mkv)

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dec05eba
2023-03-04 12:57:30 +01:00
parent 74a5fb9dfb
commit 3413f193c1
3 changed files with 198 additions and 48 deletions
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28
src/sound.cpp
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@@ -227,20 +227,38 @@ static int pa_sound_device_read(pa_handle *p) {
return success ? 0 : -1;
}
int sound_device_get_by_name(SoundDevice *device, const char *device_name, const char *description, unsigned int num_channels, unsigned int period_frame_size) {
static pa_sample_format_t audio_format_to_pulse_audio_format(AudioFormat audio_format) {
switch(audio_format) {
case S16: return PA_SAMPLE_S16LE;
case S32: return PA_SAMPLE_S32LE;
}
assert(false);
return PA_SAMPLE_S16LE;
}
static int audio_format_to_get_bytes_per_sample(AudioFormat audio_format) {
switch(audio_format) {
case S16: return 2;
case S32: return 4;
}
assert(false);
return 2;
}
int sound_device_get_by_name(SoundDevice *device, const char *device_name, const char *description, unsigned int num_channels, unsigned int period_frame_size, AudioFormat audio_format) {
pa_sample_spec ss;
ss.format = PA_SAMPLE_S16LE;
ss.format = audio_format_to_pulse_audio_format(audio_format);
ss.rate = 48000;
ss.channels = num_channels;
int error;
pa_buffer_attr buffer_attr;
buffer_attr.tlength = -1;
buffer_attr.prebuf = -1;
buffer_attr.minreq = -1;
buffer_attr.maxlength = period_frame_size * 2 * num_channels; // 2 bytes/sample, @num_channels channels
buffer_attr.maxlength = period_frame_size * audio_format_to_get_bytes_per_sample(audio_format) * num_channels; // 2/4 bytes/sample, @num_channels channels
buffer_attr.fragsize = buffer_attr.maxlength;
int error = 0;
pa_handle *handle = pa_sound_device_new(nullptr, description, device_name, description, &ss, &buffer_attr, &error);
if(!handle) {
fprintf(stderr, "pa_sound_device_new() failed: %s. Audio input device %s might not be valid\n", pa_strerror(error), description);
@@ -337,4 +355,4 @@ std::vector<AudioInput> get_pulseaudio_inputs() {
pa_mainloop_free(main_loop);
return inputs;
}
}