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gst/volume/gstvolume.*: rewrite the passthrough check, split _int16 and _int16_clamp, fix another property desc., rem...
Original commit message from CVS: * gst/volume/gstvolume.c: (volume_choose_func), (volume_update_real_volume), (gst_volume_class_init), (gst_volume_init), (volume_process_float), (volume_process_int16), (volume_process_int16_clamp), (volume_set_caps), (volume_transform_ip), (plugin_init): * gst/volume/gstvolume.h: rewrite the passthrough check, split _int16 and _int16_clamp, fix another property desc., remove unused param from process function * tests/check/elements/volume.c: (volume_suite): reactivate the passthrough test
This commit is contained in:
Stefan Kost
parent
131fb86b4b
commit
ca675bc9dc
4 changed files with 102 additions and 44 deletions
14
ChangeLog
14
ChangeLog
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@ -1,3 +1,17 @@
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2006-06-01 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_class_init),
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(gst_volume_init), (volume_process_float), (volume_process_int16),
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(volume_process_int16_clamp), (volume_set_caps),
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(volume_transform_ip), (plugin_init):
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* gst/volume/gstvolume.h:
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rewrite the passthrough check, split _int16 and _int16_clamp, fix
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another property desc., remove unused param from process function
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* tests/check/elements/volume.c: (volume_suite):
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reactivate the passthrough test
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2006-06-01 Stefan Kost <ensonic@users.sf.net>
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* ext/alsa/gstalsamixerelement.h:
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@ -50,6 +50,7 @@
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#include <gst/audio/audio.h>
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#include <gst/interfaces/mixer.h>
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#include <gst/controller/gstcontroller.h>
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#include <liboil/liboil.h>
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#include "gstvolume.h"
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@ -157,23 +158,51 @@ 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_float (GstVolume * this, GstClockTime tstamp,
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gpointer bytes, gint n_bytes);
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static void volume_process_int16 (GstVolume * this, GstClockTime tstamp,
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gpointer bytes, gint 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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static void volume_process_int16 (GstVolume * this, gpointer bytes,
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gint 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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/* 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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switch (this->format) {
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case GST_VOLUME_FORMAT_INT:
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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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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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break;
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default:
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this->process = NULL;
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}
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}
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static void
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volume_update_real_volume (GstVolume * this)
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{
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gboolean passthrough = FALSE;
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if (this->mute) {
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this->real_vol_f = 0.0;
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this->real_vol_i = 0;
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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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}
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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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}
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/* Mixer interface */
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@ -295,7 +324,7 @@ gst_volume_class_init (GstVolumeClass * klass)
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gobject_class->dispose = gst_volume_dispose;
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_MUTE,
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g_param_spec_boolean ("mute", "mute", "mute",
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g_param_spec_boolean ("mute", "Mute", "mute channel",
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FALSE, G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_VOLUME,
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@ -320,6 +349,7 @@ gst_volume_init (GstVolume * this, GstVolumeClass * g_class)
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this->real_vol_i = VOLUME_UNITY_INT;
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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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track = g_object_new (GST_TYPE_MIXER_TRACK, NULL);
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@ -339,8 +369,7 @@ 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, GstClockTime tstamp,
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gpointer bytes, gint n_bytes)
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volume_process_float (GstVolume * this, gpointer bytes, gint n_bytes)
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{
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gfloat *data;
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gint i, num_samples;
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@ -351,14 +380,13 @@ volume_process_float (GstVolume * this, GstClockTime tstamp,
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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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/* FIXME: need... liboil...
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/* FIXME: seems to be slower than above!
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oil_scalarmultiply_f32_ns (data, data, &this->real_vol_f, num_samples);
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*/
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}
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static void
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volume_process_int16 (GstVolume * this, GstClockTime tstamp,
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gpointer bytes, gint n_bytes)
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volume_process_int16 (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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@ -368,12 +396,28 @@ volume_process_int16 (GstVolume * this, GstClockTime tstamp,
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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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/* 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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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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* 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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if (this->real_vol_i > VOLUME_UNITY_INT) {
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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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@ -381,13 +425,6 @@ volume_process_int16 (GstVolume * this, GstClockTime tstamp,
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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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}
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} else {
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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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}
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/* GstBaseTransform vmethod implementations */
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@ -404,15 +441,18 @@ volume_set_caps (GstBaseTransform * base, GstCaps * incaps, GstCaps * outcaps)
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mimetype = gst_structure_get_name (gst_caps_get_structure (incaps, 0));
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/* based on mimetype, install the correct volume_process method */
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if (strcmp (mimetype, "audio/x-raw-int") == 0)
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this->process = volume_process_int16;
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else if (strcmp (mimetype, "audio/x-raw-float") == 0)
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this->process = volume_process_float;
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else {
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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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} 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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} else {
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this->process = NULL;
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goto invalid_format;
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}
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volume_choose_func (this);
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return TRUE;
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@ -435,17 +475,17 @@ volume_transform_ip (GstBaseTransform * base, GstBuffer * outbuf)
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GstVolume *this = GST_VOLUME (base);
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GstClockTime timestamp;
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/* don't process data in passthrough-mode (requires #343196)
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if (!gst_buffer_is_writable (outbuf)) return GST_FLOW_OK;
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*/
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/* don't process data in passthrough-mode */
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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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timestamp = GST_BUFFER_TIMESTAMP (outbuf);
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if (GST_CLOCK_TIME_IS_VALID (timestamp))
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gst_object_sync_values (G_OBJECT (this), timestamp);
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this->process (this, timestamp,
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GST_BUFFER_DATA (outbuf), GST_BUFFER_SIZE (outbuf));
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this->process (this, GST_BUFFER_DATA (outbuf), GST_BUFFER_SIZE (outbuf));
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return GST_FLOW_OK;
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}
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@ -520,6 +560,8 @@ volume_get_property (GObject * object, guint prop_id, GValue * value,
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static gboolean
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plugin_init (GstPlugin * plugin)
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{
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/*oil_init (); */
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/* initialize gst controller library */
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gst_controller_init (NULL, NULL);
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@ -42,6 +42,12 @@ G_BEGIN_DECLS
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typedef struct _GstVolume GstVolume;
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typedef struct _GstVolumeClass GstVolumeClass;
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typedef enum {
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GST_VOLUME_FORMAT_NONE,
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GST_VOLUME_FORMAT_INT,
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GST_VOLUME_FORMAT_FLOAT
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} GstVolumeFormat;
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/**
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* GstVolume:
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*
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@ -50,13 +56,14 @@ typedef struct _GstVolumeClass GstVolumeClass;
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struct _GstVolume {
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GstBaseTransform element;
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void (*process)(GstVolume*, GstClockTime, gpointer, gint);
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void (*process)(GstVolume*, gpointer, gint);
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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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};
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struct _GstVolumeClass {
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@ -330,8 +330,6 @@ GST_START_TEST (test_wrong_caps)
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GST_END_TEST;
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/* requires #343196 */
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#if 0
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GST_START_TEST (test_passthrough)
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{
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GstElement *volume;
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@ -371,7 +369,6 @@ GST_START_TEST (test_passthrough)
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}
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GST_END_TEST;
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#endif
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Suite *
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volume_suite (void)
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@ -385,9 +382,7 @@ volume_suite (void)
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tcase_add_test (tc_chain, test_double);
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tcase_add_test (tc_chain, test_mute);
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tcase_add_test (tc_chain, test_wrong_caps);
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/* requires #343196
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tcase_add_test (tc_chain, test_passthrough);
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*/
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return s;
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}
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