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gst/volume/gstvolume.*: Extend float audio support (double) and some int->uint cleanups.
Original commit message from CVS: * gst/volume/gstvolume.c: (volume_choose_func), (volume_update_real_volume), (gst_volume_set_volume), (gst_volume_init), (volume_process_double), (volume_process_float), (volume_process_int16), (volume_process_int16_clamp), (volume_set_caps), (volume_transform_ip), (volume_update_volume): * gst/volume/gstvolume.h: Extend float audio support (double) and some int->uint cleanups.
This commit is contained in:
Stefan Kost
parent
7bc6fc07a1
commit
b8dfedde6a
3 changed files with 95 additions and 56 deletions
10
ChangeLog
10
ChangeLog
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@ -1,3 +1,13 @@
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2007-02-21 Stefan Kost <ensonic@users.sf.net>
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* gst/volume/gstvolume.c: (volume_choose_func),
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(volume_update_real_volume), (gst_volume_set_volume),
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(gst_volume_init), (volume_process_double), (volume_process_float),
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(volume_process_int16), (volume_process_int16_clamp),
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(volume_set_caps), (volume_transform_ip), (volume_update_volume):
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* gst/volume/gstvolume.h:
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Extend float audio support (double) and some int->uint cleanups.
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2007-02-20 Edward Hervey <edward@fluendo.com>
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* gst/playback/gstdecodebin2.c: (gst_decode_bin_dispose),
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@ -55,14 +55,14 @@
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#include "gstvolume.h"
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/* some defines for audio processing */
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/* the volume factor is a range from 0.0 to (arbitrary) 4.0
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* we map 1.0 to VOLUME_UNITY_INT
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/* the volume factor is a range from 0.0 to (arbitrary) VOLUME_MAX_DOUBLE = 10.0
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* we map 1.0 to VOLUME_UNITY_INT16
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*/
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#define VOLUME_UNITY_INT 8192 /* internal int for unity */
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#define VOLUME_UNITY_BIT_SHIFT 13 /* number of bits to shift for unity */
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#define VOLUME_MAX_DOUBLE 10.0
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#define VOLUME_MAX_INT16 32767
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#define VOLUME_MIN_INT16 -32768
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#define VOLUME_UNITY_INT16 8192 /* internal int for unity 2^13 */
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#define VOLUME_UNITY_INT16_BIT_SHIFT 13 /* number of bits to shift for unity */
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#define VOLUME_MAX_DOUBLE 10.0
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#define VOLUME_MAX_INT16 32767
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#define VOLUME_MIN_INT16 -32768
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/* number of steps we use for the mixer interface to go from 0.0 to 1.0 */
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# define VOLUME_STEPS 100
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@ -98,7 +98,7 @@ static GstStaticPadTemplate volume_sink_template =
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"rate = (int) [ 1, MAX ], "
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"channels = (int) [ 1, MAX ], "
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"endianness = (int) BYTE_ORDER, "
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"width = (int) 32; "
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"width = (int) {32, 64}; "
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"audio/x-raw-int, "
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"channels = (int) [ 1, MAX ], "
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"rate = (int) [ 1, MAX ], "
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@ -114,7 +114,7 @@ static GstStaticPadTemplate volume_src_template = GST_STATIC_PAD_TEMPLATE
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"rate = (int) [ 1, MAX ], "
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"channels = (int) [ 1, MAX ], "
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"endianness = (int) BYTE_ORDER, "
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"width = (int) 32; "
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"width = (int) {32, 64}; "
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"audio/x-raw-int, "
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"channels = (int) [ 1, MAX ], "
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"rate = (int) [ 1, MAX ], "
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@ -158,33 +158,44 @@ static GstFlowReturn volume_transform_ip (GstBaseTransform * base,
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static gboolean volume_set_caps (GstBaseTransform * base, GstCaps * incaps,
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GstCaps * outcaps);
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static void volume_process_double (GstVolume * this, gpointer bytes,
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guint n_bytes);
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static void volume_process_float (GstVolume * this, gpointer bytes,
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gint n_bytes);
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guint n_bytes);
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static void volume_process_int16 (GstVolume * this, gpointer bytes,
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gint n_bytes);
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guint n_bytes);
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static void volume_process_int16_clamp (GstVolume * this, gpointer bytes,
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gint n_bytes);
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guint n_bytes);
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/* helper functions */
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static void
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volume_choose_func (GstVolume * this)
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{
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this->process = NULL;
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switch (this->format) {
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case GST_VOLUME_FORMAT_INT:
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/* FIXME: should we also support gint8, gint32? */
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/* only clamp if the gain is greater than 1.0
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* FIXME: real_vol_i can change while processing the buffer!
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*/
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if (this->real_vol_i > VOLUME_UNITY_INT)
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if (this->real_vol_i > VOLUME_UNITY_INT16)
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this->process = volume_process_int16_clamp;
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else
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this->process = volume_process_int16;
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break;
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case GST_VOLUME_FORMAT_FLOAT:
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this->process = volume_process_float;
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switch (this->width) {
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case 32:
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this->process = volume_process_float;
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break;
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case 64:
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this->process = volume_process_double;
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break;
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}
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break;
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default:
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this->process = NULL;
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break;
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}
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}
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@ -199,7 +210,7 @@ volume_update_real_volume (GstVolume * this)
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} else {
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this->real_vol_f = this->volume_f;
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this->real_vol_i = this->volume_i;
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passthrough = (this->volume_i == VOLUME_UNITY_INT);
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passthrough = (this->volume_i == VOLUME_UNITY_INT16);
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}
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volume_choose_func (this);
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gst_base_transform_set_passthrough (GST_BASE_TRANSFORM (this), passthrough);
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@ -240,7 +251,7 @@ gst_volume_set_volume (GstMixer * mixer, GstMixerTrack * track, gint * volumes)
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g_return_if_fail (GST_IS_VOLUME (this));
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this->volume_f = (gfloat) volumes[0] / VOLUME_STEPS;
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this->volume_i = this->volume_f * VOLUME_UNITY_INT;
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this->volume_i = this->volume_f * VOLUME_UNITY_INT16;
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volume_update_real_volume (this);
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}
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@ -344,9 +355,9 @@ gst_volume_init (GstVolume * this, GstVolumeClass * g_class)
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GstMixerTrack *track = NULL;
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this->mute = FALSE;
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this->volume_i = VOLUME_UNITY_INT;
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this->volume_i = VOLUME_UNITY_INT16;
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this->volume_f = 1.0;
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this->real_vol_i = VOLUME_UNITY_INT;
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this->real_vol_i = VOLUME_UNITY_INT16;
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this->real_vol_f = 1.0;
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this->tracklist = NULL;
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this->format = GST_VOLUME_FORMAT_NONE;
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@ -369,12 +380,24 @@ gst_volume_init (GstVolume * this, GstVolumeClass * g_class)
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*/
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static void
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volume_process_float (GstVolume * this, gpointer bytes, gint n_bytes)
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volume_process_double (GstVolume * this, gpointer bytes, guint n_bytes)
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{
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gfloat *data;
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gint i, num_samples;
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gdouble *data = (gdouble *) bytes;
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guint i, num_samples;
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num_samples = n_bytes / sizeof (gdouble);
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for (i = 0; i < num_samples; i++) {
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*data++ *= this->real_vol_f;
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}
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}
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static void
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volume_process_float (GstVolume * this, gpointer bytes, guint n_bytes)
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{
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gfloat *data = (gfloat *) bytes;
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guint i, num_samples;
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data = (gfloat *) bytes;
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num_samples = n_bytes / sizeof (gfloat);
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for (i = 0; i < num_samples; i++) {
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@ -386,32 +409,11 @@ volume_process_float (GstVolume * this, gpointer bytes, gint n_bytes)
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}
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static void
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volume_process_int16 (GstVolume * this, gpointer bytes, gint n_bytes)
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volume_process_int16 (GstVolume * this, gpointer bytes, guint n_bytes)
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{
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gint16 *data;
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gint i, val, num_samples;
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gint16 *data = (gint16 *) bytes;
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guint i, val, num_samples;
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data = (gint16 *) bytes;
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num_samples = n_bytes / sizeof (gint16);
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/* FIXME: need... liboil...
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* oil_scalarmultiply_s16_ns ?
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* https://bugs.freedesktop.org/show_bug.cgi?id=7060
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*/
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for (i = 0; i < num_samples; i++) {
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/* we use bitshifting instead of dividing by UNITY_INT for speed */
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val = (gint) * data;
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*data++ = (gint16) ((this->real_vol_i * val) >> VOLUME_UNITY_BIT_SHIFT);
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}
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}
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static void
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volume_process_int16_clamp (GstVolume * this, gpointer bytes, gint n_bytes)
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{
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gint16 *data;
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gint i, val, num_samples;
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data = (gint16 *) bytes;
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num_samples = n_bytes / sizeof (gint16);
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/* FIXME: need... liboil...
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@ -422,8 +424,29 @@ volume_process_int16_clamp (GstVolume * this, gpointer bytes, gint n_bytes)
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/* we use bitshifting instead of dividing by UNITY_INT for speed */
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val = (gint) * data;
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*data++ =
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(gint16) CLAMP ((this->real_vol_i * val) >> VOLUME_UNITY_BIT_SHIFT,
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VOLUME_MIN_INT16, VOLUME_MAX_INT16);
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(gint16) ((this->real_vol_i * val) >> VOLUME_UNITY_INT16_BIT_SHIFT);
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}
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}
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static void
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volume_process_int16_clamp (GstVolume * this, gpointer bytes, guint n_bytes)
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{
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gint16 *data = (gint16 *) bytes;
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guint i, val, num_samples;
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num_samples = n_bytes / sizeof (gint16);
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/* FIXME: need... liboil...
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* oil_scalarmultiply_s16_ns ?
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* https://bugs.freedesktop.org/show_bug.cgi?id=7060
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*/
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for (i = 0; i < num_samples; i++) {
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/* we use bitshifting instead of dividing by UNITY_INT for speed */
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val = (gint) * data;
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*data++ =
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(gint16) CLAMP ((this->real_vol_i *
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val) >> VOLUME_UNITY_INT16_BIT_SHIFT, VOLUME_MIN_INT16,
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VOLUME_MAX_INT16);
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}
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}
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@ -435,19 +458,22 @@ volume_set_caps (GstBaseTransform * base, GstCaps * incaps, GstCaps * outcaps)
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{
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GstVolume *this = GST_VOLUME (base);
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const gchar *mimetype;
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GstStructure *structure;
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GST_DEBUG_OBJECT (this,
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"set_caps: in %" GST_PTR_FORMAT " out %" GST_PTR_FORMAT, incaps, outcaps);
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mimetype = gst_structure_get_name (gst_caps_get_structure (incaps, 0));
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structure = gst_caps_get_structure (incaps, 0);
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gst_structure_get_int (structure, "width", &this->width);
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mimetype = gst_structure_get_name (structure);
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/* based on mimetype, choose the correct volume_process format */
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if (strcmp (mimetype, "audio/x-raw-int") == 0) {
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this->format = GST_VOLUME_FORMAT_INT;
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GST_INFO_OBJECT (this, "use int16");
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GST_DEBUG_OBJECT (this, "use int");
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} else if (strcmp (mimetype, "audio/x-raw-float") == 0) {
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this->format = GST_VOLUME_FORMAT_FLOAT;
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GST_INFO_OBJECT (this, "use float");
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GST_DEBUG_OBJECT (this, "use float");
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} else {
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this->process = NULL;
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goto invalid_format;
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@ -479,7 +505,9 @@ volume_transform_ip (GstBaseTransform * base, GstBuffer * outbuf)
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if (gst_base_transform_is_passthrough (base))
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return GST_FLOW_OK;
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/* FIXME: subdivide GST_BUFFER_SIZE into small chunks for smooth fades */
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/* FIXME: if controllers are bound, subdivide GST_BUFFER_SIZE into small
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* chunks for smooth fades, what is small? 1/10th sec.
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*/
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timestamp = GST_BUFFER_TIMESTAMP (outbuf);
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timestamp =
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gst_segment_to_stream_time (&base->segment, GST_FORMAT_TIME, timestamp);
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@ -519,7 +547,7 @@ volume_update_volume (const GValue * value, gpointer data)
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g_return_if_fail (GST_IS_VOLUME (this));
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this->volume_f = g_value_get_double (value);
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this->volume_i = this->volume_f * VOLUME_UNITY_INT;
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this->volume_i = this->volume_f * VOLUME_UNITY_INT16;
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volume_update_real_volume (this);
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}
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@ -56,14 +56,15 @@ typedef enum {
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struct _GstVolume {
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GstBaseTransform element;
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void (*process)(GstVolume*, gpointer, gint);
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void (*process)(GstVolume*, gpointer, guint);
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gboolean mute;
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gint volume_i, real_vol_i; /* the _i(nt) values get synchronized with the */
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gfloat volume_f, real_vol_f; /* _f(loat) values on each update */
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GList *tracklist;
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GstVolumeFormat format;
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GstVolumeFormat format; /* caps variables */
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gint width;
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};
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struct _GstVolumeClass {
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