Commit a7dddacd9949bee58399499fc48d96b5e07c0435
2016-08-03T01:01:44
arts: implemented audio capture support. (completely untested! Not even compiled!!).
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diff --git a/src/audio/arts/SDL_artsaudio.c b/src/audio/arts/SDL_artsaudio.c
index 5d40cd1..ce8c9d8 100644
--- a/src/audio/arts/SDL_artsaudio.c
+++ b/src/audio/arts/SDL_artsaudio.c
@@ -54,12 +54,16 @@ static void (*SDL_NAME(arts_free)) (void);
static arts_stream_t(*SDL_NAME(arts_play_stream)) (int rate, int bits,
int channels,
const char *name);
+static arts_stream_t(*SDL_NAME(arts_record_stream)) (int rate, int bits,
+ int channels,
+ const char *name);
static int (*SDL_NAME(arts_stream_set)) (arts_stream_t s,
arts_parameter_t param, int value);
static int (*SDL_NAME(arts_stream_get)) (arts_stream_t s,
arts_parameter_t param);
static int (*SDL_NAME(arts_write)) (arts_stream_t s, const void *buffer,
int count);
+static int (*SDL_NAME(arts_read)) (arts_stream_t s, void *buffer, int count);
static void (*SDL_NAME(arts_close_stream)) (arts_stream_t s);
static int (*SDL_NAME(arts_suspend))(void);
static int (*SDL_NAME(arts_suspended)) (void);
@@ -75,9 +79,11 @@ static struct
SDL_ARTS_SYM(arts_init),
SDL_ARTS_SYM(arts_free),
SDL_ARTS_SYM(arts_play_stream),
+ SDL_ARTS_SYM(arts_record_stream),
SDL_ARTS_SYM(arts_stream_set),
SDL_ARTS_SYM(arts_stream_get),
SDL_ARTS_SYM(arts_write),
+ SDL_ARTS_SYM(arts_read),
SDL_ARTS_SYM(arts_close_stream),
SDL_ARTS_SYM(arts_suspend),
SDL_ARTS_SYM(arts_suspended),
@@ -199,6 +205,27 @@ ARTS_GetDeviceBuf(_THIS)
return (this->hidden->mixbuf);
}
+static int
+ARTS_CaptureFromDevice(_THIS, void *buffer, int buflen)
+{
+ return SDL_NAME(arts_read) (this->hidden->stream, buffer, buflen);
+}
+
+static void
+ARTS_FlushCapture(_THIS)
+{
+ arts_stream_t stream = this->hidden->stream;
+ int remain = SDL_NAME(arts_stream_get)(stream, ARTS_P_BUFFER_SPACE);
+ Uint8 buf[512];
+ while (space > 0) {
+ const int len = SDL_min(sizeof (buf), remain);
+ const int br = SDL_NAME(arts_read)(stream, buf, len);
+ if (br <= 0) {
+ return; /* oh well. */
+ }
+ space -= br;
+ }
+}
static void
ARTS_CloseDevice(_THIS)
@@ -278,19 +305,20 @@ ARTS_OpenDevice(_THIS, void *handle, const char *devname, int iscapture)
SDL_NAME(arts_error_text) (rc));
}
- if (!ARTS_Suspend()) {
- ARTS_CloseDevice(this);
- return SDL_SetError("ARTS can not open audio device");
+ if (iscapture) {
+ this->hidden->stream = SDL_NAME(arts_record_stream) (this->spec.freq,
+ bits,
+ this->spec.channels,
+ "SDL");
+ } else {
+ this->hidden->stream = SDL_NAME(arts_play_stream) (this->spec.freq,
+ bits,
+ this->spec.channels,
+ "SDL");
+ /* Play nothing so we have at least one write (server bug workaround). */
+ SDL_NAME(arts_write) (this->hidden->stream, "", 0);
}
- this->hidden->stream = SDL_NAME(arts_play_stream) (this->spec.freq,
- bits,
- this->spec.channels,
- "SDL");
-
- /* Play nothing so we have at least one write (server bug workaround). */
- SDL_NAME(arts_write) (this->hidden->stream, "", 0);
-
/* Calculate the final parameters for this audio specification */
SDL_CalculateAudioSpec(&this->spec);
@@ -369,7 +397,12 @@ ARTS_Init(SDL_AudioDriverImpl * impl)
impl->CloseDevice = ARTS_CloseDevice;
impl->WaitDone = ARTS_WaitDone;
impl->Deinitialize = ARTS_Deinitialize;
+ impl->CaptureFromDevice = ARTS_CaptureFromDevice;
+ impl->FlushCapture = ARTS_FlushCapture;
+
impl->OnlyHasDefaultOutputDevice = 1;
+ impl->OnlyHasDefaultInputDevice = 1;
+ impl->HasCaptureSupport = 1;
return 1; /* this audio target is available. */
}