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Give error when using an invalid audio input with pipewire

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dec05eba
2022-09-30 22:02:23 +02:00
parent 09ad7a1eb5
commit f7606a144b
4 changed files with 105 additions and 2 deletions
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73
src/sound.cpp
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@@ -277,7 +277,7 @@ int sound_device_get_by_name(SoundDevice *device, const char *name, unsigned int
pa_handle *handle = pa_sound_device_new(nullptr, stream_name, name, stream_name, &ss, &buffer_attr, &error);
if(!handle) {
fprintf(stderr, "pa_simple_new() failed: %s. Audio input device %s might not be valid\n", pa_strerror(error), name);
fprintf(stderr, "pa_sound_device_new() failed: %s. Audio input device %s might not be valid\n", pa_strerror(error), name);
return -1;
}
@@ -298,4 +298,75 @@ int sound_device_read_next_chunk(SoundDevice *device, void **buffer) {
}
*buffer = pa->output_data;
return device->frames;
}
static void pa_state_cb(pa_context *c, void *userdata) {
pa_context_state state = pa_context_get_state(c);
int *pa_ready = (int*)userdata;
switch(state) {
case PA_CONTEXT_UNCONNECTED:
case PA_CONTEXT_CONNECTING:
case PA_CONTEXT_AUTHORIZING:
case PA_CONTEXT_SETTING_NAME:
default:
break;
case PA_CONTEXT_FAILED:
case PA_CONTEXT_TERMINATED:
*pa_ready = 2;
break;
case PA_CONTEXT_READY:
*pa_ready = 1;
break;
}
}
static void pa_sourcelist_cb(pa_context *ctx, const pa_source_info *source_info, int eol, void *userdata) {
if(eol > 0)
return;
std::vector<AudioInput> *inputs = (std::vector<AudioInput>*)userdata;
inputs->push_back({ source_info->name, source_info->description });
}
std::vector<AudioInput> get_pulseaudio_inputs() {
std::vector<AudioInput> inputs;
pa_mainloop *main_loop = pa_mainloop_new();
pa_context *ctx = pa_context_new(pa_mainloop_get_api(main_loop), "gpu-screen-recorder");
pa_context_connect(ctx, NULL, PA_CONTEXT_NOFLAGS, NULL);
int state = 0;
int pa_ready = 0;
pa_context_set_state_callback(ctx, pa_state_cb, &pa_ready);
pa_operation *pa_op = NULL;
for(;;) {
// Not ready
if(pa_ready == 0) {
pa_mainloop_iterate(main_loop, 1, NULL);
continue;
}
switch(state) {
case 0: {
pa_op = pa_context_get_source_info_list(ctx, pa_sourcelist_cb, &inputs);
++state;
break;
}
}
// Couldn't get connection to the server
if(pa_ready == 2 || (state == 1 && pa_op && pa_operation_get_state(pa_op) == PA_OPERATION_DONE)) {
if(pa_op)
pa_operation_unref(pa_op);
pa_context_disconnect(ctx);
pa_context_unref(ctx);
pa_mainloop_free(main_loop);
return inputs;
}
pa_mainloop_iterate(main_loop, 1, NULL);
}
pa_mainloop_free(main_loop);
}