X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=gst%2Faudiotestsrc%2Fgstaudiotestsrc.h;h=2b518912205f321bd22d8ac28c0dfc3a8a21f610;hb=refs%2Fheads%2Fmaster;hp=8c765948225cfdb7bdbf2c0e7678215be5acb11d;hpb=5368e843d0f50770b7959782e360243dff90eb8d;p=framework%2Fmultimedia%2Fgst-plugins-base0.10.git

diff --git a/gst/audiotestsrc/gstaudiotestsrc.h b/gst/audiotestsrc/gstaudiotestsrc.h
index 8c76594..2b51891 100644
--- a/gst/audiotestsrc/gstaudiotestsrc.h
+++ b/gst/audiotestsrc/gstaudiotestsrc.h
@@ -50,6 +50,9 @@ G_BEGIN_DECLS
  * @GST_AUDIO_TEST_SRC_WAVE_SINE_TAB: sine wave using a table
  * @GST_AUDIO_TEST_SRC_WAVE_TICKS: periodic ticks
  * @GST_AUDIO_TEST_SRC_WAVE_GAUSSIAN_WHITE_NOISE: white (zero mean) Gaussian noise;  volume sets the standard deviation of the noise in units of the range of values of the sample type, e.g. volume=0.1 produces noise with a standard deviation of 0.1*32767=3277 with 16-bit integer samples, or 0.1*1.0=0.1 with floating-point samples.
+ * @GST_AUDIO_TEST_SRC_WAVE_RED_NOISE: red (brownian) noise
+ * @GST_AUDIO_TEST_SRC_WAVE_BLUE_NOISE: spectraly inverted pink noise
+ * @GST_AUDIO_TEST_SRC_WAVE_VIOLET_NOISE: spectraly inverted red (brownian) noise
  *
  * Different types of supported sound waves.
  */
@@ -63,8 +66,11 @@ typedef enum {
   GST_AUDIO_TEST_SRC_WAVE_PINK_NOISE,
   GST_AUDIO_TEST_SRC_WAVE_SINE_TAB,
   GST_AUDIO_TEST_SRC_WAVE_TICKS,
-  GST_AUDIO_TEST_SRC_WAVE_GAUSSIAN_WHITE_NOISE
-} GstAudioTestSrcWave; 
+  GST_AUDIO_TEST_SRC_WAVE_GAUSSIAN_WHITE_NOISE,
+  GST_AUDIO_TEST_SRC_WAVE_RED_NOISE,
+  GST_AUDIO_TEST_SRC_WAVE_BLUE_NOISE,
+  GST_AUDIO_TEST_SRC_WAVE_VIOLET_NOISE
+} GstAudioTestSrcWave;
 
 #define PINK_MAX_RANDOM_ROWS   (30)
 #define PINK_RANDOM_BITS       (16)
@@ -78,6 +84,10 @@ typedef struct {
   gdouble    scalar;        /* Used to scale within range of -1.0 to +1.0 */
 } GstPinkNoise;
 
+typedef struct {
+  gdouble    state;         /* noise state */
+} GstRedNoise;
+
 typedef enum {
   GST_AUDIO_TEST_SRC_FORMAT_NONE = -1,
   GST_AUDIO_TEST_SRC_FORMAT_S16 = 0,
@@ -105,14 +115,14 @@ struct _GstAudioTestSrc {
   GstAudioTestSrcWave wave;
   gdouble volume;
   gdouble freq;
-    
+
   /* audio parameters */
   gint channels;
   gint samplerate;
   gint samples_per_buffer;
   gint sample_size;
   GstAudioTestSrcFormat format;
-  
+
   /*< private >*/
   gboolean tags_pushed;			/* send tags just once ? */
   GstClockTimeDiff timestamp_offset;    /* base offset */
@@ -125,11 +135,12 @@ struct _GstAudioTestSrc {
   gint generate_samples_per_buffer;	/* used to generate a partial buffer */
   gboolean can_activate_pull;
   gboolean reverse;                  /* play backwards */
-  
+
   /* waveform specific context data */
   GRand *gen;               /* random number generator */
   gdouble accumulator;			/* phase angle */
   GstPinkNoise pink;
+  GstRedNoise red;
   gdouble wave_table[1024];
 };