*****************************************************************************
* Copyright (C) 2011 Rémi Denis-Courmont
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as published by
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#ifdef HAVE_CONFIG_H
#include <vlc_common.h>
#include <vlc_plugin.h>
#include <vlc_aout.h>
+#include <assert.h>
static int Open (vlc_object_t *);
static void Close (vlc_object_t *);
struct aout_sys_t
{
void *opaque;
+ int (*setup) (void **, char *, unsigned *, unsigned *);
+ union
+ {
+ struct
+ {
+ void *setup_opaque;
+ void (*cleanup) (void *opaque);
+ };
+ struct
+ {
+ unsigned rate:18;
+ unsigned channels:14;
+ };
+ };
void (*play) (void *opaque, const void *data, unsigned count, int64_t pts);
+ void (*pause) (void *opaque, int64_t pts);
+ void (*resume) (void *opaque, int64_t pts);
+ void (*flush) (void *opaque);
+ void (*drain) (void *opaque);
int (*set_volume) (void *opaque, float vol, bool mute);
- void (*cleanup) (void *opaque);
+ float volume;
+ bool mute;
+ bool ready;
};
-static void Play (aout_instance_t *aout)
+static void Play (audio_output_t *aout, block_t *block)
{
- aout_sys_t *sys = aout->output.p_sys;
- block_t *block;
+ aout_sys_t *sys = aout->sys;
- while ((block = aout_FifoPop(&aout->output.fifo)) != NULL)
- {
- sys->play (sys->opaque, block->p_buffer, block->i_nb_samples,
- block->i_pts);
- block_Release (block);
- }
+ sys->play (sys->opaque, block->p_buffer, block->i_nb_samples,
+ block->i_pts);
+ block_Release (block);
}
-static int VolumeSet (aout_instance_t *aout, float vol, bool mute)
+static void Pause (audio_output_t *aout, bool paused, mtime_t date)
{
- aout_sys_t *sys = aout->output.p_sys;
+ aout_sys_t *sys = aout->sys;
+ void (*cb) (void *, int64_t) = paused ? sys->pause : sys->resume;
- return sys->set_volume (sys->opaque, vol, mute) ? -1 : 0;
+ if (cb != NULL)
+ cb (sys->opaque, date);
}
-typedef int (*vlc_audio_format_cb) (void **, char *, unsigned *, unsigned *);
+static void Flush (audio_output_t *aout, bool wait)
+{
+ aout_sys_t *sys = aout->sys;
+ void (*cb) (void *) = wait ? sys->drain : sys->flush;
-static int Open (vlc_object_t *obj)
+ if (cb != NULL)
+ cb (sys->opaque);
+}
+
+static int VolumeSet (audio_output_t *aout, float vol)
{
- aout_instance_t *aout = (aout_instance_t *)obj;
- aout_sys_t *sys = malloc (sizeof (*sys));
- if (unlikely(sys == NULL))
- return VLC_ENOMEM;
+ aout_sys_t *sys = aout->sys;
- aout->output.p_sys = sys;
- sys->opaque = var_InheritAddress (obj, "amem-data");
- sys->play = var_InheritAddress (obj, "amem-play");
- sys->set_volume = var_InheritAddress (obj, "amem-set-volume");
- sys->cleanup = NULL; /* defer */
- if (sys->play == NULL)
- goto error;
+ sys->volume = vol;
+ if (sys->ready)
+ return 0; /* sys->opaque is not yet defined... */
+ return sys->set_volume (sys->opaque, vol, sys->mute) ? -1 : 0;
+}
+
+static int MuteSet (audio_output_t *aout, bool mute)
+{
+ aout_sys_t *sys = aout->sys;
- vlc_audio_format_cb setup = var_InheritAddress (obj, "amem-setup");
+ sys->mute = mute;
+ if (!sys->ready)
+ return 0; /* sys->opaque is not yet defined... */
+ return sys->set_volume (sys->opaque, sys->volume, mute) ? -1 : 0;
+}
+
+static int SoftVolumeSet (audio_output_t *aout, float vol)
+{
+ aout_sys_t *sys = aout->sys;
+
+ vol = vol * vol * vol;
+ if (!sys->mute && aout_GainRequest (aout, vol))
+ return -1;
+ sys->volume = vol;
+ return 0;
+}
+
+static int SoftMuteSet (audio_output_t *aout, bool mute)
+{
+ aout_sys_t *sys = aout->sys;
+
+ if (aout_GainRequest (aout, mute ? 0.f : sys->volume))
+ return -1;
+ sys->mute = mute;
+ return 0;
+}
+
+static void Stop (audio_output_t *aout)
+{
+ aout_sys_t *sys = aout->sys;
+
+ if (sys->cleanup != NULL)
+ sys->cleanup (sys->opaque);
+ sys->ready = false;
+}
+
+static int Start (audio_output_t *aout, audio_sample_format_t *fmt)
+{
+ aout_sys_t *sys = aout->sys;
char format[5] = "S16N";
- unsigned rate, channels;
+ unsigned channels;
- if (setup != NULL)
+ if (sys->setup != NULL)
{
- rate = aout->output.output.i_rate;
- channels = aout_FormatNbChannels(&aout->output.output);
+ channels = aout_FormatNbChannels(fmt);
- if (setup (&sys->opaque, format, &rate, &channels))
- goto error;
- /* Only call this callback if setup succeeded */
- sys->cleanup = var_InheritAddress (obj, "amem-cleanup");
+ sys->opaque = sys->setup_opaque;
+ if (sys->setup (&sys->opaque, format, &fmt->i_rate, &channels))
+ return VLC_EGENERIC;
}
else
{
- rate = var_InheritInteger (obj, "amem-rate");
- channels = var_InheritInteger (obj, "amem-channels");
+ fmt->i_rate = sys->rate;
+ channels = sys->channels;
}
- if (rate == 0 || rate > 192000
- || channels == 0 || channels > AOUT_CHAN_MAX)
- goto error;
+ /* Initialize volume (in case the UI changed volume before setup) */
+ sys->ready = true;
+ if (sys->set_volume != NULL)
+ sys->set_volume(sys->opaque, sys->volume, sys->mute);
+
+ /* Ensure that format is supported */
+ if (fmt->i_rate == 0 || fmt->i_rate > 192000
+ || channels == 0 || channels > AOUT_CHAN_MAX
+ || strcmp(format, "S16N") /* TODO: amem-format */)
+ {
+ msg_Err (aout, "format not supported: %s, %u channel(s), %u Hz",
+ format, channels, fmt->i_rate);
+ Stop (aout);
+ return VLC_EGENERIC;
+ }
- /* TODO: amem-format */
- /* FIXME/TODO channel mapping */
- if (strcmp(format, "S16N") || aout->output.output.i_channels != channels)
+ /* channel mapping */
+ switch (channels)
{
- msg_Err (aout, "format not supported");
- goto error;
+ case 1:
+ fmt->i_physical_channels = AOUT_CHAN_CENTER;
+ break;
+ case 2:
+ fmt->i_physical_channels = AOUT_CHANS_2_0;
+ break;
+ case 3:
+ fmt->i_physical_channels = AOUT_CHANS_2_1;
+ break;
+ case 4:
+ fmt->i_physical_channels = AOUT_CHANS_4_0;
+ break;
+ case 5:
+ fmt->i_physical_channels = AOUT_CHANS_5_0;
+ break;
+ case 6:
+ fmt->i_physical_channels = AOUT_CHANS_5_1;
+ break;
+ case 7:
+ fmt->i_physical_channels =
+ AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_CENTER |
+ AOUT_CHAN_REARCENTER | AOUT_CHAN_MIDDLELEFT |
+ AOUT_CHAN_MIDDLERIGHT | AOUT_CHAN_LFE;
+ break;
+ case 8:
+ fmt->i_physical_channels = AOUT_CHANS_7_1;
+ break;
+ default:
+ assert(0);
}
- aout->output.output.i_format = VLC_CODEC_S16N;
- aout->output.output.i_rate = rate;
- aout->output.pf_play = Play;
- aout->output.pf_pause = NULL;
+ fmt->i_format = VLC_CODEC_S16N;
+ fmt->i_original_channels = fmt->i_physical_channels;
+ return VLC_SUCCESS;
+}
+
+static int Open (vlc_object_t *obj)
+{
+ audio_output_t *aout = (audio_output_t *)obj;
+ aout_sys_t *sys = malloc (sizeof (*sys));
+ if (unlikely(sys == NULL))
+ return VLC_ENOMEM;
+
+ void *opaque = var_InheritAddress (obj, "amem-data");
+ sys->setup = var_InheritAddress (obj, "amem-setup");
+ if (sys->setup != NULL)
+ {
+ sys->setup_opaque = opaque;
+ sys->cleanup = var_InheritAddress (obj, "amem-cleanup");
+ }
+ else
+ {
+ sys->opaque = opaque;
+ sys->rate = var_InheritInteger (obj, "amem-rate");
+ sys->channels = var_InheritInteger (obj, "amem-channels");
+ }
+ sys->play = var_InheritAddress (obj, "amem-play");
+ sys->pause = var_InheritAddress (obj, "amem-pause");
+ sys->resume = var_InheritAddress (obj, "amem-resume");
+ sys->flush = var_InheritAddress (obj, "amem-flush");
+ sys->drain = var_InheritAddress (obj, "amem-drain");
+ sys->set_volume = var_InheritAddress (obj, "amem-set-volume");
+ sys->volume = 1.;
+ sys->mute = false;
+ sys->ready = false;
+ if (sys->play == NULL)
+ {
+ free (sys);
+ return VLC_EGENERIC;
+ }
+
+ aout->sys = sys;
+ aout->start = Start;
+ aout->stop = Stop;
+ aout->time_get = NULL;
+ aout->play = Play;
+ aout->pause = Pause;
+ aout->flush = Flush;
if (sys->set_volume != NULL)
- aout->output.pf_volume_set = VolumeSet;
+ {
+ aout->volume_set = VolumeSet;
+ aout->mute_set = MuteSet;
+ }
else
- aout_VolumeSoftInit (aout);
+ {
+ aout->volume_set = SoftVolumeSet;
+ aout->mute_set = SoftMuteSet;
+ }
return VLC_SUCCESS;
-
-error:
- Close (obj);
- return VLC_EGENERIC;
}
static void Close (vlc_object_t *obj)
{
- aout_instance_t *aout = (aout_instance_t *)obj;
- aout_sys_t *sys = aout->output.p_sys;
+ audio_output_t *aout = (audio_output_t *)obj;
+ aout_sys_t *sys = aout->sys;
- if (sys->cleanup != NULL)
- sys->cleanup (sys->opaque);
free (sys);
}
projects / vlc / blobdiff