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tdemultimedia/xine_artsplugin/xinePlayObject_impl.cpp

820 lines
18 KiB

/*
This file is part of KDE/aRts (Noatun) - xine integration
Copyright (C) 2002-2003 Ewald Snel <ewald@rambo.its.tudelft.nl>
This library 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.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <math.h>
#include <sys/time.h>
#include <audiosubsys.h>
#include <convert.h>
#include <debug.h>
#include "xinePlayObject_impl.h"
#ifndef HAVE_XSHMGETEVENTBASE
extern "C" {
extern int XShmGetEventBase( Display* );
};
#endif
#define TIMEOUT 15 // 15 seconds
using namespace Arts;
// Global xine pointer
static xine_t *xine_shared = NULL;
static pthread_mutex_t xine_mutex = PTHREAD_MUTEX_INITIALIZER;
static pthread_cond_t xine_cond = PTHREAD_COND_INITIALIZER;
static int xineRefCount = 0;
static bool xineForceXShm = false;
static void xine_init_routine()
{
const char *id;
char cfgFileName[272];
xine_shared = (xine_t *)xine_new();
snprintf( cfgFileName, 272, "%s/.xine/config", getenv( "HOME" ) );
xine_config_load( xine_shared, (const char *)cfgFileName );
// Check default video output driver
id = xine_config_register_string (xine_shared, "video.driver",
"auto", "video driver to use",
NULL, 10, NULL, NULL);
xineForceXShm = (id && !strcasecmp( id, "XShm" ));
xine_init( xine_shared );
}
static void *xine_timeout_routine( void * )
{
pthread_mutex_lock( &xine_mutex );
while (xine_shared != 0)
{
if (xineRefCount == 0)
{
struct timespec ts;
struct timeval tv;
gettimeofday( &tv, 0 );
ts.tv_sec = tv.tv_sec;
ts.tv_nsec = tv.tv_usec * 1000;
ts.tv_sec += TIMEOUT;
if (pthread_cond_timedwait( &xine_cond, &xine_mutex, &ts ) != 0 &&
xineRefCount == 0)
{
xine_exit( xine_shared );
xine_shared = NULL;
break;
}
}
else
{
pthread_cond_wait( &xine_cond, &xine_mutex );
}
}
pthread_mutex_unlock( &xine_mutex );
return NULL;
}
static xine_t *xine_shared_init()
{
pthread_mutex_lock( &xine_mutex );
++xineRefCount;
if (xine_shared == 0)
{
pthread_t thread;
xine_init_routine();
if (pthread_create( &thread, NULL, xine_timeout_routine, NULL ) == 0)
{
pthread_detach( thread );
}
}
else
{
pthread_cond_signal( &xine_cond );
}
pthread_mutex_unlock( &xine_mutex );
return xine_shared;
}
static void xine_shared_exit( xine_t * )
{
pthread_mutex_lock( &xine_mutex );
if (--xineRefCount == 0)
{
pthread_cond_signal( &xine_cond );
}
pthread_mutex_unlock( &xine_mutex );
}
int ao_fifo_arts_delay()
{
return (int)(1000 * Arts::AudioSubSystem::the()->outputDelay());
}
static int xine_play_object_x_errhandler( Display *dpy, XErrorEvent *err ) {
if ( err->error_code == BadWindow ) {
return 0;
}
else if ( err->error_code == BadMatch &&
err->request_code == 42 /* X_SetInputFocus */ ) {
return 0;
}
char errstr[256];
XGetErrorText( dpy, err->error_code, errstr, 256 );
arts_warning( "X Error: %s %d\n"
" Major opcode: %d\n"
" Minor opcode: %d\n"
" Resource id: 0x%lx",
errstr, err->error_code,
err->request_code,
err->minor_code,
err->resourceid );
return 0;
}
static int xine_play_object_xio_errhandler( Display * ) {
arts_fatal( "Fatal IO error: client killed" );
return 0;
}
xinePlayObject_impl::xinePlayObject_impl(bool audioOnly)
: mrl( "" ), xine( 0 ), stream( 0 ), queue( 0 ), ao_port( 0 ), vo_port( 0 ), audioOnly(audioOnly)
{
if (!audioOnly) {
XInitThreads();
if (!(display = XOpenDisplay( NULL ))) {
arts_fatal( "could not open X11 display" );
}
// Install default error handlers
XSetErrorHandler( xine_play_object_x_errhandler );
XSetIOErrorHandler( xine_play_object_xio_errhandler );
XFlush( display );
// Create a special window for uninterrupted X11 communication
xcomWindow = XCreateSimpleWindow( display, DefaultRootWindow( display ), 0, 0, 1, 1, 0, 0, 0 );
XSelectInput( display, xcomWindow, ExposureMask );
}
pthread_mutex_init( &mutex, 0 );
if (!audioOnly) {
// Initialize X11 properties
xcomAtomQuit = XInternAtom( display, "VPO_INTERNAL_EVENT", False );
xcomAtomResize = XInternAtom( display, "VPO_RESIZE_NOTIFY", False );
screen = DefaultScreen( display );
shmCompletionType = (XShmQueryExtension( display ) == True)
? XShmGetEventBase( display ) + ShmCompletion : -1;
width = 0;
height = 0;
dscbTimeOut = 0;
// Initialize xine visual structure
visual.display = display;
visual.screen = screen;
visual.d = xcomWindow;
visual.dest_size_cb = &dest_size_cb;
visual.frame_output_cb = &frame_output_cb;
visual.user_data = this;
}
// Initialize audio and video details
Arts::SoundServerV2 server = Arts::Reference( "global:Arts_SoundServerV2" );
audio.sample_rate = 0;
audio.num_channels = 0;
audio.bits_per_sample = 0;
flpos = 0.0;
if (!audioOnly) {
if (pthread_create( &thread, 0, pthread_start_routine, this )) {
arts_fatal( "could not create thread" );
}
}
}
xinePlayObject_impl::~xinePlayObject_impl()
{
XEvent event;
halt();
// Send stop event to thread (X11 client message)
memset( &event, 0, sizeof(event) );
event.type = ClientMessage;
event.xclient.window = xcomWindow;
event.xclient.message_type = xcomAtomQuit;
event.xclient.format = 32;
if (!audioOnly)
{
XSendEvent( display, xcomWindow, True, 0, &event );
XFlush( display );
// Wait for the thread to die
pthread_join( thread, 0 );
}
// Destroy stream, xine and related resources
if (stream != 0)
{
halt();
xine_event_dispose_queue( queue );
xine_dispose( stream );
xine_close_audio_driver( xine, ao_port );
xine_close_video_driver( xine, vo_port );
}
if (xine != 0)
{
xine_shared_exit( xine );
}
pthread_mutex_destroy( &mutex );
if (!audioOnly)
{
XSync( display, False );
XDestroyWindow( display, xcomWindow );
XCloseDisplay( display );
}
}
bool xinePlayObject_impl::loadMedia( const string &url )
{
bool result = false;
pthread_mutex_lock( &mutex );
mrl = "";
if (stream == 0)
{
if (xine == 0)
{
xine = xine_shared_init();
}
ao_port = init_audio_out_plugin( xine, &audio, &ao_driver );
if (xineForceXShm && !audioOnly)
{
vo_port = xine_open_video_driver( xine, "XShm",
XINE_VISUAL_TYPE_X11,
(void *)&visual );
}
if (vo_port == 0 && !audioOnly)
{
vo_port = xine_open_video_driver( xine, "Xv",
XINE_VISUAL_TYPE_X11,
(void *)&visual );
}
if (vo_port == 0 && !audioOnly)
{
vo_port = xine_open_video_driver( xine, "XShm",
XINE_VISUAL_TYPE_X11,
(void *)&visual );
}
if (vo_port == 0 && !audioOnly)
{
vo_port = xine_open_video_driver( xine, "OpenGL",
XINE_VISUAL_TYPE_X11,
(void *)&visual );
}
if (vo_port == 0)
{
vo_port = xine_open_video_driver( xine, 0,
XINE_VISUAL_TYPE_NONE, 0 );
}
if (ao_port != 0 && vo_port != 0 )
{
stream = xine_stream_new( xine, ao_port, vo_port );
if (stream != 0)
{
xine_set_param( stream, XINE_PARAM_AUDIO_CHANNEL_LOGICAL, 0 );
xine_set_param( stream, XINE_PARAM_SPU_CHANNEL, -1 );
queue = xine_event_new_queue( stream );
xine_event_create_listener_thread( queue, xine_handle_event, this );
}
}
if (stream == 0)
{
if (ao_port != 0)
{
xine_close_audio_driver( xine, ao_port );
ao_port = 0;
}
if (vo_port != 0)
{
xine_close_video_driver( xine, vo_port );
vo_port = 0;
}
}
}
if (stream != 0)
{
if (xine_get_status( stream ) == XINE_STATUS_PLAY)
{
ao_fifo_clear( ao_driver, 2 );
xine_stop( stream );
clearWindow();
}
if ((result = xine_open( stream, url.c_str() )))
{
mrl = url;
}
streamLength = 0;
streamPosition = 0;
width = 0;
height = 0;
}
pthread_mutex_unlock( &mutex );
return result;
}
string xinePlayObject_impl::description()
{
return "xine aRts plugin";
}
poTime xinePlayObject_impl::currentTime()
{
poTime time;
int pos_time;
pthread_mutex_lock( &mutex );
if (stream != 0 && !mrl.empty())
{
if (xine_get_pos_length( stream, 0, &pos_time, 0 ))
{
streamPosition = pos_time;
}
else
{
pos_time = streamPosition;
}
time.seconds = pos_time / 1000;
time.ms = pos_time % 1000;
}
else
{
time.seconds = 0;
time.ms = 0;
}
pthread_mutex_unlock( &mutex );
return time;
}
poTime xinePlayObject_impl::overallTime()
{
poTime time;
int length_time;
pthread_mutex_lock( &mutex );
if (stream != 0 && !mrl.empty())
{
if (xine_get_pos_length( stream, 0, 0, &length_time ))
{
streamLength = length_time;
}
else
{
length_time = streamLength;
}
if (length_time <= 0)
{
length_time = 1;
}
time.seconds = length_time / 1000;
time.ms = length_time % 1000;
}
else
{
time.seconds = 0;
time.ms = 1;
}
pthread_mutex_unlock( &mutex );
return time;
}
poCapabilities xinePlayObject_impl::capabilities()
{
int n;
pthread_mutex_lock( &mutex );
n = (stream == 0) ? 0 : xine_get_stream_info( stream, XINE_STREAM_INFO_SEEKABLE );
pthread_mutex_unlock( &mutex );
return static_cast<poCapabilities>( capPause | ((n == 0) ? 0 : capSeek) );
}
string xinePlayObject_impl::mediaName()
{
return mrl;
}
poState xinePlayObject_impl::state()
{
poState state;
pthread_mutex_lock( &mutex );
if (stream == 0 || xine_get_status( stream ) != XINE_STATUS_PLAY)
state = posIdle;
else if (xine_get_param( stream, XINE_PARAM_SPEED ) == XINE_SPEED_PAUSE)
state = posPaused;
else
state = posPlaying;
pthread_mutex_unlock( &mutex );
return state;
}
void xinePlayObject_impl::play()
{
pthread_mutex_lock( &mutex );
if (stream != 0)
{
if (xine_get_status( stream ) == XINE_STATUS_PLAY)
{
if (xine_get_param( stream, XINE_PARAM_SPEED ) == XINE_SPEED_PAUSE)
{
xine_set_param( stream, XINE_PARAM_SPEED, XINE_SPEED_NORMAL );
}
}
else if (!mrl.empty())
{
xine_play( stream, 0, 0 );
}
}
pthread_mutex_unlock( &mutex );
}
void xinePlayObject_impl::halt()
{
pthread_mutex_lock( &mutex );
if (stream != 0 && xine_get_status( stream ) == XINE_STATUS_PLAY)
{
ao_fifo_clear( ao_driver, 2 );
xine_stop( stream );
clearWindow();
streamLength = 0;
streamPosition = 0;
}
pthread_mutex_unlock( &mutex );
}
void xinePlayObject_impl::seek( const class poTime &t )
{
pthread_mutex_lock( &mutex );
if (stream != 0 && xine_get_status( stream ) == XINE_STATUS_PLAY)
{
int seekPosition = (1000 * t.seconds) + t.ms;
int paused = (xine_get_param( stream, XINE_PARAM_SPEED ) == XINE_SPEED_PAUSE);
ao_fifo_clear( ao_driver, 1 );
if (xine_play( stream, 0, seekPosition ))
{
if (seekPosition >= 0 && seekPosition <= streamLength)
{
streamPosition = seekPosition;
}
}
if (paused)
{
xine_set_param( stream, XINE_PARAM_SPEED, XINE_SPEED_PAUSE );
}
ao_fifo_clear( ao_driver, 0 );
}
pthread_mutex_unlock( &mutex );
}
void xinePlayObject_impl::pause()
{
pthread_mutex_lock( &mutex );
if (stream != 0 && xine_get_status( stream ) == XINE_STATUS_PLAY)
{
ao_fifo_clear( ao_driver, 1 );
xine_set_param( stream, XINE_PARAM_SPEED, XINE_SPEED_PAUSE );
}
pthread_mutex_unlock( &mutex );
}
void xinePlayObject_impl::calculateBlock( unsigned long samples )
{
unsigned int skip, received = 0, converted = 0, xSamples = 0;
unsigned char *buffer;
double speed = 1.0;
pthread_mutex_lock( &mutex );
if (stream != 0)
{
// Calculate resampling parameters
speed = (double)audio.sample_rate / samplingRateFloat;
xSamples = (unsigned int)((double)samples * speed + 8.0);
received = ao_fifo_read( ao_driver, &buffer, xSamples );
}
pthread_mutex_unlock( &mutex );
// Convert samples and fill gaps with zeroes
if (received)
{
converted = uni_convert_stereo_2float( samples, buffer, received,
audio.num_channels,
audio.bits_per_sample,
left, right, speed, flpos );
flpos += (double)converted * speed;
skip = (int)floor( flpos );
skip = (received < (xSamples - 8)) ? (xSamples - 8) : skip;
flpos = flpos - floor( flpos );
ao_fifo_flush( ao_driver, skip );
}
for (unsigned long i=converted; i < samples; i++)
{
left[i] = 0;
right[i] = 0;
}
}
void xinePlayObject_impl::xineEvent( const xine_event_t &event )
{
if (event.type == XINE_EVENT_UI_PLAYBACK_FINISHED)
{
clearWindow();
}
}
void xinePlayObject_impl::clearWindow()
{
if (audioOnly) return;
Window root;
unsigned int u, w, h;
int x, y, screen;
XLockDisplay( display );
screen = DefaultScreen( display );
XGetGeometry( display, visual.d, &root, &x, &y, &w, &h, &u, &u );
XSetForeground( display, DefaultGC( display, screen ),
BlackPixel( display, screen ) );
XFillRectangle( display, visual.d,
DefaultGC( display, screen ), x, y, w, h );
XUnlockDisplay( display );
}
void xinePlayObject_impl::frameOutput( int &x, int &y,
int &width, int &height, double &ratio,
int displayWidth, int displayHeight,
double displayPixelAspect, bool dscb )
{
if (audioOnly) return;
Window child, root;
unsigned int u;
int n;
XLockDisplay( display );
XGetGeometry( display, visual.d, &root, &n, &n,
(unsigned int *)&width, (unsigned int *)&height, &u, &u );
if (!dscb)
{
XTranslateCoordinates( display, visual.d, root, 0, 0, &x, &y, &child );
}
// Most displays use (nearly) square pixels
ratio = 1.0;
// Correct for display pixel aspect
if (displayPixelAspect < 1.0)
{
displayHeight = (int)((displayHeight / displayPixelAspect) + .5);
}
else
{
displayWidth = (int)((displayWidth * displayPixelAspect) + .5);
}
if (dscb || dscbTimeOut == 0 || --dscbTimeOut == 0)
{
// Notify client of new display size
if (displayWidth != this->width || displayHeight != this->height)
{
this->width = displayWidth;
this->height = displayHeight;
resizeNotify();
}
// Reset 'seen dest_size_cb' time out
if (dscb)
{
dscbTimeOut = 25;
}
}
XUnlockDisplay( display );
}
void xinePlayObject_impl::resizeNotify()
{
if (audioOnly) return;
XEvent event;
// Resize notify signal for front-ends
memset( &event, 0, sizeof(event) );
event.type = ClientMessage;
event.xclient.window = visual.d;
event.xclient.message_type = xcomAtomResize;
event.xclient.format = 32;
event.xclient.data.l[0] = width;
event.xclient.data.l[1] = height;
XSendEvent( display, visual.d, True, 0, &event );
XFlush( display );
}
// FIXME
// Due to somewhat recent changes in XLib threading this had to be changed to a polling routine
// Specifically XNextEvent acquires a global XLib lock, preventing any other XLib methods (including those used in the Xine library) from executing
// Seems this is a known problem in other projects as well, with the only real option being a rewrite to use xcb natively (not sure if that is even possible here):
// http://mail-archives.apache.org/mod_mbox/harmony-dev/200905.mbox/%3C200905181317.n4IDHtGQ002008@d06av03.portsmouth.uk.ibm.com%3E
void xinePlayObject_impl::eventLoop()
{
XEvent event;
bool eventReceived = false;
do {
if (XPending( display )) {
XNextEvent( display, &event );
eventReceived = true;
if (event.type == Expose && event.xexpose.count == 0 && event.xexpose.window == visual.d) {
pthread_mutex_lock( &mutex );
if (stream != 0) {
xine_port_send_gui_data( vo_port,
XINE_GUI_SEND_EXPOSE_EVENT,
&event );
}
else {
clearWindow();
}
pthread_mutex_unlock( &mutex );
}
else if (event.type == shmCompletionType) {
pthread_mutex_lock( &mutex );
if (stream != 0) {
xine_port_send_gui_data( vo_port,
XINE_GUI_SEND_COMPLETION_EVENT,
&event );
}
pthread_mutex_unlock( &mutex );
}
}
else {
usleep(50000);
eventReceived = false;
}
}
while (!eventReceived ||
event.type != ClientMessage ||
event.xclient.message_type != xcomAtomQuit ||
event.xclient.window != xcomWindow);
}
void xineVideoPlayObject_impl::x11WindowId( long window )
{
pthread_mutex_lock( &mutex );
if (window == -1)
{
window = xcomWindow;
}
if ((Window)window != visual.d)
{
XLockDisplay( display );
// Change window and set event mask of new window
visual.d = window;
XSelectInput( display, window, ExposureMask );
if (stream != 0)
{
resizeNotify();
xine_port_send_gui_data( vo_port,
XINE_GUI_SEND_DRAWABLE_CHANGED,
(void *)window );
}
XUnlockDisplay( display );
}
pthread_mutex_unlock( &mutex );
}
long xineVideoPlayObject_impl::x11WindowId()
{
return (visual.d == xcomWindow) ? (long)-1 : visual.d;
}
long xineVideoPlayObject_impl::x11Snapshot()
{
long pixmap = -1;
pthread_mutex_lock( &mutex );
if (stream != 0 && xine_get_status( stream ) == XINE_STATUS_PLAY)
{
// FIXME: snapshot...
pixmap = (long)-1;
}
pthread_mutex_unlock( &mutex );
return pixmap;
}
REGISTER_IMPLEMENTATION(xinePlayObject_impl);
REGISTER_IMPLEMENTATION(xineAudioPlayObject_impl);
REGISTER_IMPLEMENTATION(xineVideoPlayObject_impl);