mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-10-03 01:02:19 +00:00
audioamplify: Add noclip method and support for more formats
Fixes bug #585828 and #585831.
This commit is contained in:
Kipp Cannon
Sebastian Dröge
parent
8ecd5f1a06
commit
afccf53ace
2 changed files with 233 additions and 165 deletions
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@ -74,6 +74,7 @@ enum
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METHOD_CLIP = 0,
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METHOD_WRAP_NEGATIVE,
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METHOD_WRAP_POSITIVE,
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METHOD_NOCLIP,
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NUM_METHODS
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};
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@ -85,12 +86,13 @@ gst_audio_amplify_clipping_method_get_type (void)
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if (gtype == 0) {
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static const GEnumValue values[] = {
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{METHOD_CLIP, "Normal Clipping (default)", "clip"},
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{METHOD_CLIP, "Normal clipping (default)", "clip"},
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{METHOD_WRAP_NEGATIVE,
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"Push overdriven values back from the opposite side",
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"wrap-negative"},
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{METHOD_WRAP_POSITIVE, "Push overdriven values back from the same side",
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"wrap-positive"},
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{METHOD_NOCLIP, "No clipping", "none"},
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{0, NULL, NULL}
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};
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@ -100,7 +102,14 @@ gst_audio_amplify_clipping_method_get_type (void)
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return gtype;
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}
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#define ALLOWED_CAPS \
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#define ALLOWED_CAPS \
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"audio/x-raw-int," \
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" depth=(int)8," \
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" width=(int)8," \
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" endianness=(int)BYTE_ORDER," \
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" signed=(bool)TRUE," \
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" rate=(int)[1,MAX]," \
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" channels=(int)[1,MAX]; " \
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"audio/x-raw-int," \
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" depth=(int)16," \
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" width=(int)16," \
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@ -108,9 +117,16 @@ gst_audio_amplify_clipping_method_get_type (void)
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" signed=(bool)TRUE," \
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" rate=(int)[1,MAX]," \
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" channels=(int)[1,MAX]; " \
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"audio/x-raw-float," \
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"audio/x-raw-int," \
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" depth=(int)32," \
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" width=(int)32," \
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" endianness=(int)BYTE_ORDER," \
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" signed=(bool)TRUE," \
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" rate=(int)[1,MAX]," \
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" channels=(int)[1,MAX]; " \
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"audio/x-raw-float," \
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" width=(int){32,64}," \
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" endianness=(int)BYTE_ORDER," \
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" rate=(int)[1,MAX]," \
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" channels=(int)[1,MAX]"
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@ -120,6 +136,8 @@ gst_audio_amplify_clipping_method_get_type (void)
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GST_BOILERPLATE_FULL (GstAudioAmplify, gst_audio_amplify, GstAudioFilter,
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GST_TYPE_AUDIO_FILTER, DEBUG_INIT);
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static gboolean gst_audio_amplify_set_process_function (GstAudioAmplify *
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filter, gint clipping, gint format, gint width);
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static void gst_audio_amplify_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_audio_amplify_get_property (GObject * object, guint prop_id,
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@ -130,34 +148,137 @@ static gboolean gst_audio_amplify_setup (GstAudioFilter * filter,
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static GstFlowReturn gst_audio_amplify_transform_ip (GstBaseTransform * base,
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GstBuffer * buf);
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static void gst_audio_amplify_transform_int_clip (GstAudioAmplify * filter,
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gint16 * data, guint num_samples);
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static void gst_audio_amplify_transform_int_wrap_negative (GstAudioAmplify *
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filter, gint16 * data, guint num_samples);
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static void gst_audio_amplify_transform_int_wrap_positive (GstAudioAmplify *
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filter, gint16 * data, guint num_samples);
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static void gst_audio_amplify_transform_float_clip (GstAudioAmplify * filter,
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gfloat * data, guint num_samples);
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static void gst_audio_amplify_transform_float_wrap_negative (GstAudioAmplify *
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filter, gfloat * data, guint num_samples);
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static void gst_audio_amplify_transform_float_wrap_positive (GstAudioAmplify *
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filter, gfloat * data, guint num_samples);
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#define MIN_gint8 G_MININT8
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#define MAX_gint8 G_MAXINT8
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#define MIN_gint16 G_MININT16
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#define MAX_gint16 G_MAXINT16
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#define MIN_gint32 G_MININT32
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#define MAX_gint32 G_MAXINT32
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/* table of processing functions: [format][clipping_method] */
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static GstAudioAmplifyProcessFunc processing_functions[2][3] = {
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{
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(GstAudioAmplifyProcessFunc) gst_audio_amplify_transform_int_clip,
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(GstAudioAmplifyProcessFunc)
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gst_audio_amplify_transform_int_wrap_negative,
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(GstAudioAmplifyProcessFunc)
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gst_audio_amplify_transform_int_wrap_positive},
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{
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(GstAudioAmplifyProcessFunc) gst_audio_amplify_transform_float_clip,
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(GstAudioAmplifyProcessFunc)
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gst_audio_amplify_transform_float_wrap_negative,
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(GstAudioAmplifyProcessFunc)
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gst_audio_amplify_transform_float_wrap_positive}
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};
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#define MAKE_INT_FUNCS(type) \
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static void \
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gst_audio_amplify_transform_##type##_clip (GstAudioAmplify * filter, \
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void * data, guint num_samples) \
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{ \
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type *d = data; \
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\
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while (num_samples--) { \
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glong val = *d * filter->amplification; \
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*d++ = CLAMP (val, MIN_##type, MAX_##type); \
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} \
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} \
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static void \
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gst_audio_amplify_transform_##type##_wrap_negative (GstAudioAmplify * filter, \
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void * data, guint num_samples) \
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{ \
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type *d = data; \
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\
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while (num_samples--) { \
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glong val = *d * filter->amplification; \
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if (val > MAX_##type) \
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val = MIN_##type + (val - MIN_##type) % ((glong) MAX_##type - \
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MIN_##type); \
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else if (val < MIN_##type) \
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val = MAX_##type - (MAX_##type - val) % ((glong) MAX_##type - \
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MIN_##type); \
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*d++ = val; \
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} \
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} \
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static void \
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gst_audio_amplify_transform_##type##_wrap_positive (GstAudioAmplify * filter, \
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void * data, guint num_samples) \
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{ \
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type *d = data; \
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\
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while (num_samples--) { \
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glong val = *d * filter->amplification; \
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do { \
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if (val > MAX_##type) \
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val = MAX_##type - (val - MAX_##type); \
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else if (val < MIN_##type) \
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val = MIN_##type + (MIN_##type - val); \
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else \
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break; \
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} while (1); \
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*d++ = val; \
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} \
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} \
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static void \
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gst_audio_amplify_transform_##type##_noclip (GstAudioAmplify * filter, \
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void * data, guint num_samples) \
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{ \
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type *d = data; \
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\
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while (num_samples--) \
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*d++ *= filter->amplification; \
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}
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#define MAKE_FLOAT_FUNCS(type) \
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static void \
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gst_audio_amplify_transform_##type##_clip (GstAudioAmplify * filter, \
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void * data, guint num_samples) \
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{ \
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type *d = data; \
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\
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while (num_samples--) { \
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type val = *d* filter->amplification; \
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*d++ = CLAMP (val, -1.0, +1.0); \
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} \
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} \
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static void \
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gst_audio_amplify_transform_##type##_wrap_negative (GstAudioAmplify * \
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filter, void * data, guint num_samples) \
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{ \
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type *d = data; \
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\
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while (num_samples--) { \
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type val = *d * filter->amplification; \
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do { \
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if (val > 1.0) \
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val = -1.0 + (val - 1.0); \
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else if (val < -1.0) \
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val = 1.0 - (1.0 - val); \
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else \
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break; \
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} while (1); \
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*d++ = val; \
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} \
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} \
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static void \
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gst_audio_amplify_transform_##type##_wrap_positive (GstAudioAmplify * filter, \
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void * data, guint num_samples) \
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{ \
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type *d = data; \
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\
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while (num_samples--) { \
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type val = *d* filter->amplification; \
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do { \
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if (val > 1.0) \
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val = 1.0 - (val - 1.0); \
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else if (val < -1.0) \
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val = -1.0 + (-1.0 - val); \
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else \
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break; \
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} while (1); \
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*d++ = val; \
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} \
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} \
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static void \
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gst_audio_amplify_transform_##type##_noclip (GstAudioAmplify * filter, \
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void * data, guint num_samples) \
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{ \
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type *d = data; \
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\
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while (num_samples--) \
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*d++ *= filter->amplification; \
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}
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/* *INDENT-OFF* */
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MAKE_INT_FUNCS (gint8)
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MAKE_INT_FUNCS (gint16)
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MAKE_INT_FUNCS (gint32)
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MAKE_FLOAT_FUNCS (gfloat)
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MAKE_FLOAT_FUNCS (gdouble)
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/* GObject vmethod implementations */
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@ -213,24 +334,90 @@ static void
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gst_audio_amplify_init (GstAudioAmplify * filter, GstAudioAmplifyClass * klass)
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{
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filter->amplification = 1.0;
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filter->clipping_method = METHOD_CLIP;
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filter->format_index = 0;
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gst_audio_amplify_set_process_function (filter, METHOD_CLIP,
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GST_BUFTYPE_LINEAR, 16);
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gst_base_transform_set_in_place (GST_BASE_TRANSFORM (filter), TRUE);
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gst_base_transform_set_gap_aware (GST_BASE_TRANSFORM (filter), TRUE);
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}
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static gboolean
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gst_audio_amplify_set_process_function (GstAudioAmplify * filter)
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static GstAudioAmplifyProcessFunc
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gst_audio_amplify_process_function (gint clipping, gint format, gint width)
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{
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gint method_index;
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static const struct {
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gint format;
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gint width;
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gint clipping;
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GstAudioAmplifyProcessFunc func;
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} *p, process[] = {
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{GST_BUFTYPE_FLOAT, 32, METHOD_CLIP,
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gst_audio_amplify_transform_gfloat_clip},
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{GST_BUFTYPE_FLOAT, 32, METHOD_WRAP_NEGATIVE,
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gst_audio_amplify_transform_gfloat_wrap_negative},
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{GST_BUFTYPE_FLOAT, 32, METHOD_WRAP_POSITIVE,
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gst_audio_amplify_transform_gfloat_wrap_positive},
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{GST_BUFTYPE_FLOAT, 32, METHOD_NOCLIP,
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gst_audio_amplify_transform_gfloat_noclip},
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{GST_BUFTYPE_FLOAT, 64, METHOD_CLIP,
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gst_audio_amplify_transform_gdouble_clip},
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{GST_BUFTYPE_FLOAT, 64, METHOD_WRAP_NEGATIVE,
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gst_audio_amplify_transform_gdouble_wrap_negative},
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{GST_BUFTYPE_FLOAT, 64, METHOD_WRAP_POSITIVE,
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gst_audio_amplify_transform_gdouble_wrap_positive},
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{GST_BUFTYPE_FLOAT, 64, METHOD_NOCLIP,
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gst_audio_amplify_transform_gdouble_noclip},
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{GST_BUFTYPE_LINEAR, 8, METHOD_CLIP,
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gst_audio_amplify_transform_gint8_clip},
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{GST_BUFTYPE_LINEAR, 8, METHOD_WRAP_NEGATIVE,
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gst_audio_amplify_transform_gint8_wrap_negative},
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{GST_BUFTYPE_LINEAR, 8, METHOD_WRAP_POSITIVE,
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gst_audio_amplify_transform_gint8_wrap_positive},
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{GST_BUFTYPE_LINEAR, 8, METHOD_NOCLIP,
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gst_audio_amplify_transform_gint8_noclip},
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{GST_BUFTYPE_LINEAR, 16, METHOD_CLIP,
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gst_audio_amplify_transform_gint16_clip},
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{GST_BUFTYPE_LINEAR, 16, METHOD_WRAP_NEGATIVE,
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gst_audio_amplify_transform_gint16_wrap_negative},
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{GST_BUFTYPE_LINEAR, 16, METHOD_WRAP_POSITIVE,
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gst_audio_amplify_transform_gint16_wrap_positive},
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{GST_BUFTYPE_LINEAR, 16, METHOD_NOCLIP,
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gst_audio_amplify_transform_gint16_noclip},
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{GST_BUFTYPE_LINEAR, 32, METHOD_CLIP,
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gst_audio_amplify_transform_gint32_clip},
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{GST_BUFTYPE_LINEAR, 32, METHOD_WRAP_NEGATIVE,
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gst_audio_amplify_transform_gint32_wrap_negative},
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{GST_BUFTYPE_LINEAR, 32, METHOD_WRAP_POSITIVE,
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gst_audio_amplify_transform_gint32_wrap_positive},
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{GST_BUFTYPE_LINEAR, 32, METHOD_NOCLIP,
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gst_audio_amplify_transform_gint32_noclip},
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{0, 0, 0, NULL}
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};
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for (p = process; p->func; p++)
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if (p->format == format && p->width == width && p->clipping == clipping)
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return p->func;
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return NULL;
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}
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static gboolean
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gst_audio_amplify_set_process_function (GstAudioAmplify * filter, gint
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clipping_method, gint format, gint width)
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{
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GstAudioAmplifyProcessFunc process;
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/* set processing function */
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method_index = filter->clipping_method;
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if (method_index >= NUM_METHODS || method_index < 0)
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method_index = METHOD_CLIP;
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process = gst_audio_amplify_process_function (clipping_method, format,
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width);
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if (!process) {
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GST_DEBUG ("wrong format");
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return FALSE;
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}
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filter->process = process;
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filter->clipping_method = clipping_method;
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filter->format = format;
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filter->width = width;
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filter->process = processing_functions[filter->format_index][method_index];
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return TRUE;
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}
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@ -247,8 +434,8 @@ gst_audio_amplify_set_property (GObject * object, guint prop_id,
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filter->amplification == 1.0);
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break;
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case PROP_CLIPPING_METHOD:
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filter->clipping_method = g_value_get_enum (value);
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gst_audio_amplify_set_process_function (filter);
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gst_audio_amplify_set_process_function (filter, g_value_get_enum (value),
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filter->format, filter->width);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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@ -280,129 +467,9 @@ static gboolean
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gst_audio_amplify_setup (GstAudioFilter * base, GstRingBufferSpec * format)
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{
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GstAudioAmplify *filter = GST_AUDIO_AMPLIFY (base);
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gboolean ret;
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if (format->type == GST_BUFTYPE_LINEAR && format->width == 16)
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filter->format_index = 0;
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else if (format->type == GST_BUFTYPE_FLOAT && format->width == 32)
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filter->format_index = 1;
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else
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goto wrong_format;
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ret = gst_audio_amplify_set_process_function (filter);
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if (!ret)
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GST_WARNING ("can't process input");
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return ret;
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wrong_format:
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GST_DEBUG ("wrong format");
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return FALSE;
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}
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static void
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gst_audio_amplify_transform_int_clip (GstAudioAmplify * filter,
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gint16 * data, guint num_samples)
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{
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gint i;
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glong val;
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for (i = 0; i < num_samples; i++) {
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val = (*data) * filter->amplification;
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*data++ = (gint16) CLAMP (val, G_MININT16, G_MAXINT16);
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}
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}
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static void
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gst_audio_amplify_transform_int_wrap_negative (GstAudioAmplify * filter,
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gint16 * data, guint num_samples)
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{
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gint i;
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glong val;
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for (i = 0; i < num_samples; i++) {
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val = (*data) * filter->amplification;
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if (val > G_MAXINT16)
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val = ((val - G_MININT16) & 0xffff) + G_MININT16;
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else if (val < G_MININT16)
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val = ((val - G_MAXINT16) & 0xffff) + G_MAXINT16;
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*data++ = val;
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}
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}
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static void
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gst_audio_amplify_transform_int_wrap_positive (GstAudioAmplify * filter,
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gint16 * data, guint num_samples)
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{
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gint i;
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glong val;
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for (i = 0; i < num_samples; i++) {
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val = (*data) * filter->amplification;
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while (val > G_MAXINT16 || val < G_MININT16) {
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if (val > G_MAXINT16)
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val = G_MAXINT16 - (val - G_MAXINT16);
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else if (val < G_MININT16)
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val = G_MININT16 - (val - G_MININT16);
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}
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*data++ = val;
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}
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}
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static void
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gst_audio_amplify_transform_float_clip (GstAudioAmplify * filter,
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gfloat * data, guint num_samples)
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{
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gint i;
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gfloat val;
|
||||
|
||||
for (i = 0; i < num_samples; i++) {
|
||||
val = (*data) * filter->amplification;
|
||||
if (val > 1.0)
|
||||
val = 1.0;
|
||||
else if (val < -1.0)
|
||||
val = -1.0;
|
||||
|
||||
*data++ = val;
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
gst_audio_amplify_transform_float_wrap_negative (GstAudioAmplify * filter,
|
||||
gfloat * data, guint num_samples)
|
||||
{
|
||||
gint i;
|
||||
gfloat val;
|
||||
|
||||
for (i = 0; i < num_samples; i++) {
|
||||
val = (*data) * filter->amplification;
|
||||
while (val > 1.0 || val < -1.0) {
|
||||
if (val > 1.0)
|
||||
val = -1.0 + (val - 1.0);
|
||||
else if (val < -1.0)
|
||||
val = 1.0 + (val + 1.0);
|
||||
}
|
||||
*data++ = val;
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
gst_audio_amplify_transform_float_wrap_positive (GstAudioAmplify * filter,
|
||||
gfloat * data, guint num_samples)
|
||||
{
|
||||
gint i;
|
||||
gfloat val;
|
||||
|
||||
for (i = 0; i < num_samples; i++) {
|
||||
val = (*data) * filter->amplification;
|
||||
while (val > 1.0 || val < -1.0) {
|
||||
if (val > 1.0)
|
||||
val = 1.0 - (val - 1.0);
|
||||
else if (val < -1.0)
|
||||
val = -1.0 - (val + 1.0);
|
||||
}
|
||||
*data++ = val;
|
||||
}
|
||||
return gst_audio_amplify_set_process_function (filter,
|
||||
filter->clipping_method, format->type, format->width);
|
||||
}
|
||||
|
||||
/* GstBaseTransform vmethod implementations */
|
||||
|
|
|
|||
|
|
@ -37,7 +37,7 @@ G_BEGIN_DECLS
|
|||
typedef struct _GstAudioAmplify GstAudioAmplify;
|
||||
typedef struct _GstAudioAmplifyClass GstAudioAmplifyClass;
|
||||
|
||||
typedef void (*GstAudioAmplifyProcessFunc) (GstAudioAmplify *, guint8 *, guint);
|
||||
typedef void (*GstAudioAmplifyProcessFunc) (GstAudioAmplify *, void *, guint);
|
||||
|
||||
struct _GstAudioAmplify
|
||||
{
|
||||
|
|
@ -48,7 +48,8 @@ struct _GstAudioAmplify
|
|||
/* < private > */
|
||||
GstAudioAmplifyProcessFunc process;
|
||||
gint clipping_method;
|
||||
gint format_index;
|
||||
gint format;
|
||||
gint width;
|
||||
};
|
||||
|
||||
struct _GstAudioAmplifyClass
|
||||
|
|
|
|||
Loading…
Reference in a new issue