mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2025-03-28 11:55:39 +00:00
Code Issues 1 Projects Releases Wiki Activity

opensles: attempt to query device for capabilities

Browse source
This commit is contained in:
Josep Torra 2012-09-21 14:15:12 +02:00 committed by Sebastian Dröge
parent 85bd75a2b1
commit c006973a4e
1 changed files with 101 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

102
sys/opensles/openslessink.c
View file

@ -37,7 +37,9 @@ enum
#define DEFAULT_VOLUME 1.0
#define DEFAULT_MUTE FALSE
#define RATES "8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000, 64000, 88200, 96000, 192000"
/* According to Android's NDK doc the following are the supported rates */
#define RATES "8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000"
static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
@ -92,6 +94,102 @@ gst_opensles_sink_create_ringbuffer (GstBaseAudioSink * base)
return rb;
}
#define AUDIO_OUTPUT_DESC_FORMAT \
"deviceName: %s deviceConnection: %d deviceScope: %d deviceLocation: %d " \
"isForTelephony: %d minSampleRate: %d maxSampleRate: %d " \
"isFreqRangeContinuous: %d maxChannels: %d"
#define AUDIO_OUTPUT_DESC_ARGS(aod) \
(gchar*) (aod)->pDeviceName, (gint) (aod)->deviceConnection, \
(gint) (aod)->deviceScope, (gint) (aod)->deviceLocation, \
(gint) (aod)->isForTelephony, (gint) (aod)->minSampleRate, \
(gint) (aod)->maxSampleRate, (gint) (aod)->isFreqRangeContinuous, \
(gint) (aod)->maxChannels
/* Next it's not defined in Android */
#ifndef MAX_NUMBER_OUTPUT_DEVICES
#define MAX_NUMBER_OUTPUT_DEVICES 16
#endif
static gboolean
_opensles_query_capabilities (GstOpenSLESSink * sink)
{
gboolean res = FALSE;
SLresult result;
SLObjectItf engineObject = NULL;
SLAudioIODeviceCapabilitiesItf audioIODeviceCapabilities;
SLint32 i, j, numOutputs = MAX_NUMBER_OUTPUT_DEVICES;
SLuint32 outputDeviceIDs[MAX_NUMBER_OUTPUT_DEVICES];
SLAudioOutputDescriptor audioOutputDescriptor;
/* Create engine */
result = slCreateEngine (&engineObject, 0, NULL, 0, NULL, NULL);
if (result != SL_RESULT_SUCCESS) {
GST_ERROR_OBJECT (sink, "slCreateEngine failed(0x%08x)", (guint32) result);
goto beach;
}
/* Realize the engine */
result = (*engineObject)->Realize (engineObject, SL_BOOLEAN_FALSE);
if (result != SL_RESULT_SUCCESS) {
GST_ERROR_OBJECT (sink, "engine.Realize failed(0x%08x)", (guint32) result);
goto beach;
}
/* Get the engine interface, which is needed in order to
* create other objects */
result = (*engineObject)->GetInterface (engineObject,
SL_IID_AUDIOIODEVICECAPABILITIES, &audioIODeviceCapabilities);
if (result != SL_RESULT_SUCCESS) {
GST_ERROR_OBJECT (sink,
"engine.GetInterface(IODeviceCapabilities) failed(0x%08x)",
(guint32) result);
goto beach;
}
result = (*audioIODeviceCapabilities)->GetAvailableAudioOutputs
(audioIODeviceCapabilities, &numOutputs, outputDeviceIDs);
if (result != SL_RESULT_SUCCESS) {
GST_ERROR_OBJECT (sink,
"IODeviceCapabilities.GetAvailableAudioOutputs failed(0x%08x)",
(guint32) result);
goto beach;
}
GST_DEBUG_OBJECT (sink, "Found %d output devices", (gint32) numOutputs);
for (i = 0; i < numOutputs; i++) {
result = (*audioIODeviceCapabilities)->QueryAudioOutputCapabilities
(audioIODeviceCapabilities, outputDeviceIDs[i], &audioOutputDescriptor);
if (result != SL_RESULT_SUCCESS) {
GST_ERROR_OBJECT (sink,
"IODeviceCapabilities.QueryAudioOutputCapabilities failed(0x%08x)",
(guint32) result);
continue;
}
GST_DEBUG_OBJECT (sink, " ID: %08x " AUDIO_OUTPUT_DESC_FORMAT,
(guint) outputDeviceIDs[i],
AUDIO_OUTPUT_DESC_ARGS (&audioOutputDescriptor));
GST_DEBUG_OBJECT (sink, " Found %d supported sample rated",
audioOutputDescriptor.numOfSamplingRatesSupported);
for (j = 0; j < audioOutputDescriptor.numOfSamplingRatesSupported; j++) {
GST_DEBUG_OBJECT (sink, " %d Hz",
(gint) audioOutputDescriptor.samplingRatesSupported[j]);
}
}
res = TRUE;
beach:
/* Destroy engine object */
if (engineObject) {
(*engineObject)->Destroy (engineObject);
}
return res;
}
static void
gst_opensles_sink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
@ -167,4 +265,6 @@ gst_opensles_sink_init (GstOpenSLESSink * sink, GstOpenSLESSinkClass * gclass)
{
sink->volume = DEFAULT_VOLUME;
sink->mute = DEFAULT_MUTE;
_opensles_query_capabilities (sink);
}