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changing 'channel' to 'track' to avoid naming overlap

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Original commit message from CVS:
changing 'channel' to 'track' to avoid naming overlap
This commit is contained in:
Leif Johnson 2003-10-09 22:02:35 +00:00
parent cd8887968f
commit 32dc5f21d4
2 changed files with 66 additions and 60 deletions
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26
gst-libs/gst/mixer/mixer.c
View file

@ -59,7 +59,7 @@ static void
gst_mixer_class_init (GstMixerClass *klass)
{
/* default virtual functions */
klass->list_channels = NULL;
klass->list_tracks = NULL;
klass->set_volume = NULL;
klass->get_volume = NULL;
klass->set_mute = NULL;
@ -67,12 +67,12 @@ gst_mixer_class_init (GstMixerClass *klass)
}
const GList *
gst_mixer_list_channels (GstMixer *mixer)
gst_mixer_list_tracks (GstMixer *mixer)
{
GstMixerClass *klass = GST_MIXER_GET_CLASS (mixer);
if (klass->list_channels) {
return klass->list_channels (mixer);
if (klass->list_tracks) {
return klass->list_tracks (mixer);
}
return NULL;
@ -80,29 +80,29 @@ gst_mixer_list_channels (GstMixer *mixer)
void
gst_mixer_set_volume (GstMixer *mixer,
GstMixerChannel *channel,
GstMixerTrack *track,
gint *volumes)
{
GstMixerClass *klass = GST_MIXER_GET_CLASS (mixer);
if (klass->set_volume) {
klass->set_volume (mixer, channel, volumes);
klass->set_volume (mixer, track, volumes);
}
}
void
gst_mixer_get_volume (GstMixer *mixer,
GstMixerChannel *channel,
GstMixerTrack *track,
gint *volumes)
{
GstMixerClass *klass = GST_MIXER_GET_CLASS (mixer);
if (klass->get_volume) {
klass->get_volume (mixer, channel, volumes);
klass->get_volume (mixer, track, volumes);
} else {
gint i;
for (i = 0; i < channel->num_channels; i++) {
for (i = 0; i < track->num_channels; i++) {
volumes[i] = 0;
}
}
@ -110,24 +110,24 @@ gst_mixer_get_volume (GstMixer *mixer,
void
gst_mixer_set_mute (GstMixer *mixer,
GstMixerChannel *channel,
GstMixerTrack *track,
gboolean mute)
{
GstMixerClass *klass = GST_MIXER_GET_CLASS (mixer);
if (klass->set_mute) {
klass->set_mute (mixer, channel, mute);
klass->set_mute (mixer, track, mute);
}
}
void
gst_mixer_set_record (GstMixer *mixer,
GstMixerChannel *channel,
GstMixerTrack *track,
gboolean record)
{
GstMixerClass *klass = GST_MIXER_GET_CLASS (mixer);
if (klass->set_record) {
klass->set_record (mixer, channel, record);
klass->set_record (mixer, track, record);
}
}

52
gst-libs/gst/mixer/mixer.h
View file

@ -39,27 +39,33 @@ G_BEGIN_DECLS
#define GST_MIXER_GET_CLASS(inst) \
(G_TYPE_INSTANCE_GET_INTERFACE ((inst), GST_TYPE_MIXER, GstMixerClass))
/* I fully realise that this naming being used here is confusing.
* A channel is referred to both as the number of simultaneous
* sound streams the input can handle as well as the in-/output
* itself. We need to fix this some day, I just cannot come up
* with something better.
/* In this interface, a `track' is a unit of recording or playback, pretty much
* equivalent to what comes in or goes out through a GstPad. Each track can have
* one or more `channels', which are logical parts of the track. A `stereo
* track', then, would be one stream with two channels, while a `mono track'
* would be a stream with a single channel. More complex examples are possible
* as well ; for example, professional audio hardware might handle audio tracks
* with 8 or 16 channels each.
*
* All these are audio terms. I don't know exactly what this would translate to
* for video, but a track might be an entire video stream, and a channel might
* be the information for one of the colors in the stream.
*/
#define GST_MIXER_CHANNEL_INPUT (1<<0)
#define GST_MIXER_CHANNEL_OUTPUT (1<<1)
#define GST_MIXER_CHANNEL_MUTE (1<<2)
#define GST_MIXER_CHANNEL_RECORD (1<<3)
#define GST_MIXER_TRACK_INPUT (1<<0)
#define GST_MIXER_TRACK_OUTPUT (1<<1)
#define GST_MIXER_TRACK_MUTE (1<<2)
#define GST_MIXER_TRACK_RECORD (1<<3)
typedef struct _GstMixerChannel {
typedef struct _GstMixerTrack {
gchar *label;
gint num_channels,
flags,
min_volume, max_volume;
} GstMixerChannel;
} GstMixerTrack;
#define GST_MIXER_CHANNEL_HAS_FLAG(channel, flag) \
((channel)->flags & flag)
#define GST_MIXER_TRACK_HAS_FLAG(track, flag) \
((track)->flags & flag)
typedef struct _GstMixer GstMixer;
@ -67,20 +73,20 @@ typedef struct _GstMixerClass {
GTypeInterface klass;
/* virtual functions */
const GList * (* list_channels) (GstMixer *mixer);
const GList * (* list_tracks) (GstMixer *mixer);
void (* set_volume) (GstMixer *mixer,
GstMixerChannel *channel,
GstMixerTrack *track,
gint *volumes);
void (* get_volume) (GstMixer *mixer,
GstMixerChannel *channel,
GstMixerTrack *track,
gint *volumes);
void (* set_mute) (GstMixer *mixer,
GstMixerChannel *channel,
GstMixerTrack *track,
gboolean mute);
void (* set_record) (GstMixer *mixer,
GstMixerChannel *channel,
GstMixerTrack *track,
gboolean record);
GST_CLASS_PADDING
@ -89,18 +95,18 @@ typedef struct _GstMixerClass {
GType gst_mixer_get_type (void);
/* virtual class function wrappers */
const GList * gst_mixer_list_channels (GstMixer *mixer);
const GList * gst_mixer_list_tracks (GstMixer *mixer);
void gst_mixer_set_volume (GstMixer *mixer,
GstMixerChannel *channel,
GstMixerTrack *track,
gint *volumes);
void gst_mixer_get_volume (GstMixer *mixer,
GstMixerChannel *channel,
GstMixerTrack *track,
gint *volumes);
void gst_mixer_set_mute (GstMixer *mixer,
GstMixerChannel *channel,
GstMixerTrack *track,
gboolean mute);
void gst_mixer_set_record (GstMixer *mixer,
GstMixerChannel *channel,
GstMixerTrack *track,
gboolean record);
G_END_DECLS