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/* Author: Max Howell <max.howell@methylblue.com>, (C) 2004
Copyright: See COPYING file that comes with this distribution */
/* gcc doesn't like inline for me */
#define inline
/* need access to port_ticket */
#define XINE_ENGINE_INTERNAL
#include "xineScope.h"
#include <xine/post.h>
#include <xine/xine_internal.h>
static MyNode theList;
static metronom_t theMetronom;
static int myChannels = 0;
MyNode* const myList = &theList;
metronom_t* const myMetronom = &theMetronom;
/* defined in xineEngine.cpp */
extern void _debug( const char * );
/*************************
* post plugin functions *
*************************/
static int
scope_port_open( xine_audio_port_t *port_gen, xine_stream_t *stream, uint32_t bits, uint32_t rate, int mode )
{
_debug( "scope_port_open()\n" );
#define port ((post_audio_port_t*)port_gen)
_x_post_rewire( (post_plugin_t*)port->post );
_x_post_inc_usage( port );
port->stream = stream;
port->bits = bits;
port->rate = rate;
port->mode = mode;
myChannels = _x_ao_mode2channels( mode );
return port->original_port->open( port->original_port, stream, bits, rate, mode );
}
static void
scope_port_close( xine_audio_port_t *port_gen, xine_stream_t *stream )
{
_debug( "scope_port_close()\n" );
port->stream = NULL;
port->original_port->close( port->original_port, stream );
_x_post_dec_usage( port );
}
static void
scope_port_put_buffer( xine_audio_port_t *port_gen, audio_buffer_t *buf, xine_stream_t *stream )
{
#if XINE_MAJOR_VERSION < 1 || (XINE_MAJOR_VERSION == 1 && XINE_MINOR_VERSION < 2) || \
(XINE_MAJOR_VERSION == 1 && XINE_MINOR_VERSION == 2 && XINE_SUB_VERSION < 10)
MyNode *new_node;
const int num_samples = buf->num_frames * myChannels;
/* we are too simple to handle 8bit */
/* what does it mean when stream == NULL? */
if( port->bits == 8 ) {
port->original_port->put_buffer( port->original_port, buf, stream ); return; }
/* I keep my own metronom because xine wouldn't for some reason */
memcpy( myMetronom, stream->metronom, sizeof(metronom_t) );
new_node = malloc( sizeof(MyNode) );
new_node->vpts = myMetronom->got_audio_samples( myMetronom, buf->vpts, buf->num_frames );
new_node->num_frames = buf->num_frames;
new_node->mem = malloc( num_samples * 2 );
memcpy( new_node->mem, buf->mem, num_samples * 2 );
{
int64_t
K = myMetronom->pts_per_smpls; /*smpls = 1<<16 samples*/
K *= num_samples;
K /= (1<<16);
K += new_node->vpts;
new_node->vpts_end = K;
}
/* pass data to original port */
port->original_port->put_buffer( port->original_port, buf, stream );
/* finally we should append the current buffer to the list
* NOTE this is thread-safe due to the way we handle the list in the GUI thread */
new_node->next = myList->next;
myList->next = new_node;
#endif
#undef port
}
static void
scope_dispose( post_plugin_t *this )
{
free( this );
}
/************************
* plugin init function *
************************/
xine_post_t*
scope_plugin_new( xine_t *xine, xine_audio_port_t *audio_target )
{
if( audio_target == NULL )
return NULL;
post_plugin_t *post_plugin = xine_xmalloc( sizeof(post_plugin_t) );
{
post_plugin_t *this = post_plugin;
post_in_t *input;
post_out_t *output;
post_audio_port_t *port;
_x_post_init( this, 1, 0 );
port = _x_post_intercept_audio_port( this, audio_target, &input, &output );
port->new_port.open = scope_port_open;
port->new_port.close = scope_port_close;
port->new_port.put_buffer = scope_port_put_buffer;
this->xine_post.audio_input[0] = &port->new_port;
this->xine_post.type = PLUGIN_POST;
this->dispose = scope_dispose;
}
#if XINE_MAJOR_VERSION < 1 || (XINE_MAJOR_VERSION == 1 && XINE_MINOR_VERSION < 2) || \
(XINE_MAJOR_VERSION == 1 && XINE_MINOR_VERSION == 2 && XINE_SUB_VERSION < 10)
/* code is straight from xine_init_post()
can't use that function as it only dlopens the plugins
and our plugin is statically linked in */
post_plugin->running_ticket = xine->port_ticket;
post_plugin->xine = xine;
#endif
return &post_plugin->xine_post;
}
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