xine-lib/xine-lib-safe-audio-pause.patch
2009-02-07 19:29:38 +00:00

123 lines
4.9 KiB
Diff

diff -r ce4b1533a0af src/xine-engine/audio_out.c
--- a/src/xine-engine/audio_out.c Sun Jan 11 22:24:42 2009 +0000
+++ b/src/xine-engine/audio_out.c Sat Feb 07 15:09:24 2009 -0200
@@ -243,6 +243,7 @@
audio_fifo_t *free_fifo;
audio_fifo_t *out_fifo;
int64_t last_audio_vpts;
+ pthread_mutex_t current_speed_lock;
uint32_t current_speed; /* the current playback speed */
/* FIXME: replace all this->clock->speed with this->current_speed. we should make
* sure nobody will change speed without going through xine.c:set_speed_internal */
@@ -1040,6 +1041,7 @@
* we must process/free buffers otherwise the entire engine will stop.
*/
+ pthread_mutex_lock(&this->current_speed_lock);
if ( this->audio_loop_running &&
(this->clock->speed == XINE_SPEED_PAUSE ||
(this->clock->speed != XINE_FINE_SPEED_NORMAL &&
@@ -1055,6 +1057,7 @@
_x_refcounter_dec(in_buf->stream->refcounter);
fifo_append (this->free_fifo, in_buf);
in_buf = NULL;
+ pthread_mutex_unlock(&this->current_speed_lock);
continue;
}
@@ -1065,6 +1068,7 @@
}
lprintf ("loop:pause: I feel sleepy (%d buffers).\n", this->out_fifo->num_buffers);
+ pthread_mutex_unlock(&this->current_speed_lock);
xine_usec_sleep (10000);
lprintf ("loop:pause: I wake up.\n");
continue;
@@ -1274,6 +1278,7 @@
fifo_append (this->free_fifo, in_buf);
in_buf = NULL;
}
+ pthread_mutex_unlock(&this->current_speed_lock);
/* Give other threads a chance to use functions which require this->driver_lock to
* be available. This is needed when using NPTL on Linux (and probably PThreads
@@ -1684,6 +1689,7 @@
free (this->frame_buf[1]);
free (this->zero_space);
+ pthread_mutex_destroy(&this->current_speed_lock);
pthread_mutex_destroy(&this->flush_audio_driver_lock);
pthread_cond_destroy(&this->flush_audio_driver_reached);
@@ -1910,11 +1916,15 @@
if (value != XINE_FINE_SPEED_NORMAL && value != XINE_SPEED_PAUSE && !this->slow_fast_audio )
this->ao.control(&this->ao, AO_CTRL_FLUSH_BUFFERS, NULL);
+ /* current_speed_lock is here to make sure the ao_loop will pause in a safe place.
+ * that is, we cannot pause writing to device, filling gaps etc. */
+ pthread_mutex_lock(&this->current_speed_lock);
this->ao.control(&this->ao,
(value == XINE_SPEED_PAUSE) ? AO_CTRL_PLAY_PAUSE : AO_CTRL_PLAY_RESUME, NULL);
this->current_speed = value;
if( this->slow_fast_audio )
ao_update_resample_factor(this);
+ pthread_mutex_unlock(&this->current_speed_lock);
break;
default:
@@ -2056,6 +2066,7 @@
this->driver = driver;
this->xine = xine;
this->clock = xine->clock;
+ this->current_speed = xine->clock->speed;
this->streams = xine_list_new();
/* warning: driver_lock is a recursive mutex. it must NOT be
@@ -2087,6 +2098,7 @@
this->discard_buffers = 0;
this->zero_space = calloc (1, ZERO_BUF_SIZE * 4 * 6); /* MAX as 32bit, 6 channels. */
+ pthread_mutex_init( &this->current_speed_lock, NULL );
pthread_mutex_init( &this->flush_audio_driver_lock, NULL );
pthread_cond_init( &this->flush_audio_driver_reached, NULL );
diff -r ce4b1533a0af src/xine-engine/xine.c
--- a/src/xine-engine/xine.c Sun Jan 11 22:24:42 2009 +0000
+++ b/src/xine-engine/xine.c Sat Feb 07 15:09:25 2009 -0200
@@ -330,17 +330,20 @@
static void set_speed_internal (xine_stream_t *stream, int speed) {
xine_t *xine = stream->xine;
+ int old_speed = xine->clock->speed;
- if (xine->clock->speed != XINE_SPEED_PAUSE && speed == XINE_SPEED_PAUSE)
+ if (old_speed != XINE_SPEED_PAUSE && speed == XINE_SPEED_PAUSE)
/* get all decoder and post threads in a state where they agree to be blocked */
xine->port_ticket->revoke(xine->port_ticket, 0);
- if (xine->clock->speed == XINE_SPEED_PAUSE && speed != XINE_SPEED_PAUSE)
+ if (old_speed == XINE_SPEED_PAUSE && speed != XINE_SPEED_PAUSE)
/* all decoder and post threads may continue now */
xine->port_ticket->issue(xine->port_ticket, 0);
- stream->xine->clock->set_fine_speed (stream->xine->clock, speed);
-
+ if (old_speed != XINE_SPEED_PAUSE && speed == XINE_SPEED_PAUSE)
+ /* set master clock so audio_out loop can pause in a safe place */
+ stream->xine->clock->set_fine_speed (stream->xine->clock, speed);
+
/* see coment on audio_out loop about audio_paused */
if( stream->audio_out ) {
xine->port_ticket->acquire(xine->port_ticket, 1);
@@ -350,6 +353,10 @@
xine->port_ticket->release(xine->port_ticket, 1);
}
+
+ if (old_speed == XINE_SPEED_PAUSE && speed != XINE_SPEED_PAUSE)
+ /* master clock is set after resuming the audio device (audio_out loop may continue) */
+ stream->xine->clock->set_fine_speed (stream->xine->clock, speed);
}