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GStreamer Good Plugins 0.10 Plugins Reference Manual | |
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This element lets you output sound using the DirectSound API.
Note that you should almost always use generic audio conversion elements like audioconvert and audioresample in front of an audiosink to make sure your pipeline works under all circumstances (those conversion elements will act in passthrough-mode if no conversion is necessary).
gst-launch -v audiotestsrc ! audioconvert ! volume volume=0.1 ! directsoundsink
gst-launch -v filesrc location=music.ogg ! decodebin ! audioconvert ! audioresample ! directsoundsink
typedef struct {
GstAudioSink sink;
/* directsound object interface pointer */
LPDIRECTSOUND pDS;
/* directsound sound object interface pointer */
LPDIRECTSOUNDBUFFER pDSBSecondary;
/* directSound buffer size */
guint buffer_size;
/* offset of the circular buffer where we must write next */
guint current_circular_offset;
guint bytes_per_sample;
/* current volume setup by mixer interface */
glong volume;
/* tracks list of our mixer interface implementation */
GList *tracks;
/* lock used to protect writes and resets */
GMutex *dsound_lock;
gboolean first_buffer_after_reset;
} GstDirectSoundSink;