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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 22:02:37 +00:00
parent a2fcfe72d1
commit b7e443cb84
4 changed files with 102 additions and 103 deletions
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2
sys/oss/gstosselement.c
View file

@ -145,7 +145,7 @@ gst_osselement_init (GstOssElement *oss)
oss->mixer_dev = g_strdup ("/dev/mixer");
oss->fd = -1;
oss->mixer_fd = -1;
oss->channellist = NULL;
oss->tracklist = NULL;
gst_osselement_reset (oss);
}

2
sys/oss/gstosselement.h
View file

@ -76,7 +76,7 @@ struct _GstOssElement
gint rate;
/* mixer stuff */
GList *channellist;
GList *tracklist;
guint32 stereomask,
recdevs,
recmask,

151
sys/oss/gstossmixer.c
View file

@ -40,57 +40,56 @@
static gboolean gst_ossmixer_supported (GstInterface *iface,
GType iface_type);
static const GList * gst_ossmixer_list_channels (GstMixer *ossmixer);
static const GList * gst_ossmixer_list_tracks (GstMixer *ossmixer);
static void gst_ossmixer_set_volume (GstMixer *ossmixer,
GstMixerChannel *channel,
GstMixerTrack *track,
gint *volumes);
static void gst_ossmixer_get_volume (GstMixer *ossmixer,
GstMixerChannel *channel,
GstMixerTrack *track,
gint *volumes);
static void gst_ossmixer_set_record (GstMixer *ossmixer,
GstMixerChannel *channel,
GstMixerTrack *track,
gboolean record);
static void gst_ossmixer_set_mute (GstMixer *ossmixer,
GstMixerChannel *channel,
GstMixerTrack *track,
gboolean mute);
static const gchar *labels[SOUND_MIXER_NRDEVICES] = SOUND_DEVICE_LABELS;
GstMixerChannel *
gst_ossmixer_channel_new (GstOssElement *oss,
gint channel_num,
GstMixerTrack *
gst_ossmixer_track_new (GstOssElement *oss,
gint track_num,
gint max_chans,
gint flags)
{
GstMixerChannel *channel = (GstMixerChannel *) g_new (GstOssMixerChannel, 1);
GstMixerTrack *track = (GstMixerTrack *) g_new (GstOssMixerTrack, 1);
gint volumes[2];
channel->label = g_strdup (labels[channel_num]);
channel->num_channels = max_chans;
channel->flags = flags;
channel->min_volume = 0;
channel->max_volume = 100;
((GstOssMixerChannel *) channel)->channel_num = channel_num;
track->label = g_strdup (labels[track_num]);
track->num_channels = max_chans;
track->flags = flags;
track->min_volume = 0;
track->max_volume = 100;
((GstOssMixerTrack *) track)->track_num = track_num;
/* volume */
gst_ossmixer_get_volume (GST_MIXER (oss),
channel, volumes);
gst_ossmixer_get_volume (GST_MIXER (oss), track, volumes);
if (max_chans == 1) {
volumes[1] = 0;
}
((GstOssMixerChannel *) channel)->lvol = volumes[0];
((GstOssMixerChannel *) channel)->rvol = volumes[1];
((GstOssMixerTrack *) track)->lvol = volumes[0];
((GstOssMixerTrack *) track)->rvol = volumes[1];
return channel;
return track;
}
void
gst_ossmixer_channel_free (GstMixerChannel *channel)
gst_ossmixer_track_free (GstMixerTrack *track)
{
g_free (channel->label);
g_free (channel);
g_free (track->label);
g_free (track);
}
void
@ -104,7 +103,7 @@ void
gst_ossmixer_interface_init (GstMixerClass *klass)
{
/* default virtual functions */
klass->list_channels = gst_ossmixer_list_channels;
klass->list_tracks = gst_ossmixer_list_tracks;
klass->set_volume = gst_ossmixer_set_volume;
klass->get_volume = gst_ossmixer_get_volume;
klass->set_mute = gst_ossmixer_set_mute;
@ -121,136 +120,136 @@ gst_ossmixer_supported (GstInterface *iface,
}
static const GList *
gst_ossmixer_list_channels (GstMixer *mixer)
gst_ossmixer_list_tracks (GstMixer *mixer)
{
GstOssElement *oss = GST_OSSELEMENT (mixer);
g_return_val_if_fail (oss->mixer_fd != -1, NULL);
return (const GList *) GST_OSSELEMENT (mixer)->channellist;
return (const GList *) GST_OSSELEMENT (mixer)->tracklist;
}
static void
gst_ossmixer_get_volume (GstMixer *mixer,
GstMixerChannel *channel,
GstMixerTrack *track,
gint *volumes)
{
gint volume;
GstOssElement *oss = GST_OSSELEMENT (mixer);
GstOssMixerChannel *osschannel = (GstOssMixerChannel *) channel;
GstOssMixerTrack *osstrack = (GstOssMixerTrack *) track;
g_return_if_fail (oss->mixer_fd != -1);
if (channel->flags & GST_MIXER_CHANNEL_MUTE) {
volumes[0] = osschannel->lvol;
if (channel->num_channels == 2) {
volumes[1] = osschannel->rvol;
if (track->flags & GST_MIXER_TRACK_MUTE) {
volumes[0] = osstrack->lvol;
if (track->num_channels == 2) {
volumes[1] = osstrack->rvol;
}
} else {
/* get */
if (ioctl(oss->mixer_fd, MIXER_READ (osschannel->channel_num), &volume) < 0) {
if (ioctl(oss->mixer_fd, MIXER_READ (osstrack->track_num), &volume) < 0) {
g_warning("Error getting recording device (%d) volume (0x%x): %s\n",
osschannel->channel_num, volume, strerror(errno));
osstrack->track_num, volume, strerror(errno));
volume = 0;
}
osschannel->lvol = volumes[0] = (volume & 0xff);
if (channel->num_channels == 2) {
osschannel->rvol = volumes[1] = ((volume >> 8) & 0xff);
osstrack->lvol = volumes[0] = (volume & 0xff);
if (track->num_channels == 2) {
osstrack->rvol = volumes[1] = ((volume >> 8) & 0xff);
}
}
}
static void
gst_ossmixer_set_volume (GstMixer *mixer,
GstMixerChannel *channel,
GstMixerTrack *track,
gint *volumes)
{
gint volume;
GstOssElement *oss = GST_OSSELEMENT (mixer);
GstOssMixerChannel *osschannel = (GstOssMixerChannel *) channel;
GstOssMixerTrack *osstrack = (GstOssMixerTrack *) track;
g_return_if_fail (oss->mixer_fd != -1);
/* prepare the value for ioctl() */
if (!(channel->flags & GST_MIXER_CHANNEL_MUTE)) {
if (!(track->flags & GST_MIXER_TRACK_MUTE)) {
volume = (volumes[0] & 0xff);
if (channel->num_channels == 2) {
if (track->num_channels == 2) {
volume |= ((volumes[1] & 0xff) << 8);
}
/* set */
if (ioctl(oss->mixer_fd, MIXER_WRITE (osschannel->channel_num), &volume) < 0) {
if (ioctl(oss->mixer_fd, MIXER_WRITE (osstrack->track_num), &volume) < 0) {
g_warning("Error setting recording device (%d) volume (0x%x): %s\n",
osschannel->channel_num, volume, strerror(errno));
osstrack->track_num, volume, strerror(errno));
return;
}
}
osschannel->lvol = volumes[0];
if (channel->num_channels == 2) {
osschannel->rvol = volumes[1];
osstrack->lvol = volumes[0];
if (track->num_channels == 2) {
osstrack->rvol = volumes[1];
}
}
static void
gst_ossmixer_set_mute (GstMixer *mixer,
GstMixerChannel *channel,
GstMixerTrack *track,
gboolean mute)
{
int volume;
GstOssElement *oss = GST_OSSELEMENT (mixer);
GstOssMixerChannel *osschannel = (GstOssMixerChannel *) channel;
GstOssMixerTrack *osstrack = (GstOssMixerTrack *) track;
g_return_if_fail (oss->mixer_fd != -1);
if (mute) {
volume = 0;
} else {
volume = (osschannel->lvol & 0xff);
if (MASK_BIT_IS_SET (oss->stereomask, osschannel->channel_num)) {
volume |= ((osschannel->rvol & 0xff) << 8);
volume = (osstrack->lvol & 0xff);
if (MASK_BIT_IS_SET (oss->stereomask, osstrack->track_num)) {
volume |= ((osstrack->rvol & 0xff) << 8);
}
}
if (ioctl(oss->mixer_fd, MIXER_WRITE(osschannel->channel_num), &volume) < 0) {
if (ioctl(oss->mixer_fd, MIXER_WRITE(osstrack->track_num), &volume) < 0) {
g_warning("Error setting mixer recording device volume (0x%x): %s",
volume, strerror(errno));
return;
}
if (mute) {
channel->flags |= GST_MIXER_CHANNEL_MUTE;
track->flags |= GST_MIXER_TRACK_MUTE;
} else {
channel->flags &= ~GST_MIXER_CHANNEL_MUTE;
track->flags &= ~GST_MIXER_TRACK_MUTE;
}
}
static void
gst_ossmixer_set_record (GstMixer *mixer,
GstMixerChannel *channel,
GstMixerTrack *track,
gboolean record)
{
GstOssElement *oss = GST_OSSELEMENT (mixer);
GstOssMixerChannel *osschannel = (GstOssMixerChannel *) channel;
GstOssMixerTrack *osstrack = (GstOssMixerTrack *) track;
g_return_if_fail (oss->mixer_fd != -1);
/* if we're exclusive, then we need to unset the current one(s) */
if (oss->mixcaps & SOUND_CAP_EXCL_INPUT) {
GList *channel;
for (channel = oss->channellist; channel != NULL; channel = channel->next) {
GstMixerChannel *turn = (GstMixerChannel *) channel->data;
turn->flags &= ~GST_MIXER_CHANNEL_RECORD;
GList *track;
for (track = oss->tracklist; track != NULL; track = track->next) {
GstMixerTrack *turn = (GstMixerTrack *) track->data;
turn->flags &= ~GST_MIXER_TRACK_RECORD;
}
oss->recdevs = 0;
}
/* set new record bit, if needed */
if (record) {
oss->recdevs |= (1 << osschannel->channel_num);
oss->recdevs |= (1 << osstrack->track_num);
} else {
oss->recdevs &= ~(1 << osschannel->channel_num);
oss->recdevs &= ~(1 << osstrack->track_num);
}
/* set it to the device */
@ -261,9 +260,9 @@ gst_ossmixer_set_record (GstMixer *mixer,
}
if (record) {
channel->flags |= GST_MIXER_CHANNEL_RECORD;
track->flags |= GST_MIXER_TRACK_RECORD;
} else {
channel->flags &= ~GST_MIXER_CHANNEL_RECORD;
track->flags &= ~GST_MIXER_TRACK_RECORD;
}
}
@ -288,13 +287,13 @@ gst_ossmixer_build_list (GstOssElement *oss)
ioctl (oss->mixer_fd, SOUND_MIXER_READ_DEVMASK, &devmask);
ioctl (oss->mixer_fd, SOUND_MIXER_READ_CAPS, &oss->mixcaps);
/* build channel list */
/* build track list */
for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
if (devmask & (1 << i)) {
GstMixerChannel *channel;
GstMixerTrack *track;
gboolean input = FALSE, stereo = FALSE, record = FALSE;
/* channel exists, make up capabilities */
/* track exists, make up capabilities */
if (MASK_BIT_IS_SET (oss->stereomask, i))
stereo = TRUE;
if (MASK_BIT_IS_SET (oss->recmask, i))
@ -302,12 +301,12 @@ gst_ossmixer_build_list (GstOssElement *oss)
if (MASK_BIT_IS_SET (oss->recdevs, i))
record = TRUE;
/* add channel to list */
channel = gst_ossmixer_channel_new (oss, i, stereo ? 2 : 1,
(record ? GST_MIXER_CHANNEL_RECORD : 0) |
(input ? GST_MIXER_CHANNEL_INPUT :
GST_MIXER_CHANNEL_OUTPUT));
oss->channellist = g_list_append (oss->channellist, channel);
/* add track to list */
track = gst_ossmixer_track_new (oss, i, stereo ? 2 : 1,
(record ? GST_MIXER_TRACK_RECORD : 0) |
(input ? GST_MIXER_TRACK_INPUT :
GST_MIXER_TRACK_OUTPUT));
oss->tracklist = g_list_append (oss->tracklist, track);
}
}
}
@ -317,9 +316,9 @@ gst_ossmixer_free_list (GstOssElement *oss)
{
g_return_if_fail (oss->mixer_fd != -1);
g_list_foreach (oss->channellist, (GFunc) gst_ossmixer_channel_free, NULL);
g_list_free (oss->channellist);
oss->channellist = NULL;
g_list_foreach (oss->tracklist, (GFunc) gst_ossmixer_track_free, NULL);
g_list_free (oss->tracklist);
oss->tracklist = NULL;
close (oss->mixer_fd);
oss->mixer_fd = -1;

8
sys/oss/gstossmixer.h
View file

@ -28,11 +28,11 @@
G_BEGIN_DECLS
typedef struct _GstOssMixerChannel {
GstMixerChannel parent;
typedef struct _GstOssMixerTrack {
GstMixerTrack parent;
gint lvol, rvol;
gint channel_num;
} GstOssMixerChannel;
gint track_num;
} GstOssMixerTrack;
void gst_ossmixer_interface_init (GstMixerClass *klass);
void gst_oss_interface_init (GstInterfaceClass *klass);