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add seek event, first shot ;)

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Original commit message from CVS:
add seek event, first shot ;)
This commit is contained in:
Jeremy Simon 2002-06-09 19:00:27 +00:00
parent 636f2735e1
commit dc461761f7
2 changed files with 138 additions and 55 deletions
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191
gst/modplug/gstmodplug.cc
View file

@ -30,7 +30,7 @@
#include "gstmodplug.h"
#include <gst/audio/audio.h>
#include <gst/gst.h>
#include <stdlib.h>
GstElementDetails modplug_details = {
@ -105,9 +105,12 @@ static void gst_modplug_class_init (GstModPlugClass *klass);
static void gst_modplug_init (GstModPlug *filter);
static void gst_modplug_set_property (GObject *object, guint id, const GValue *value, GParamSpec *pspec );
static void gst_modplug_get_property (GObject *object, guint id, GValue *value, GParamSpec *pspec );
static void gst_modplug_loop (GstElement *element);
static void gst_modplug_loop (GstElement *element);
static void gst_modplug_setup (GstModPlug *modplug);
static GstElementStateReturn gst_modplug_change_state (GstElement *element);
static gboolean gst_modplug_src_event (GstPad *pad, GstEvent *event);
static gboolean gst_modplug_src_query (GstPad *pad, GstPadQueryType type, GstFormat *format, gint64 *value);
static GstElementStateReturn
gst_modplug_change_state (GstElement *element);
static GstElementClass *parent_class = NULL;
@ -237,6 +240,8 @@ gst_modplug_init (GstModPlug *modplug)
gst_element_add_pad(GST_ELEMENT(modplug),modplug->sinkpad);
gst_element_add_pad(GST_ELEMENT(modplug),modplug->srcpad);
gst_pad_set_event_function (modplug->srcpad, (GstPadEventFunction)GST_DEBUG_FUNCPTR(gst_modplug_src_event));
gst_pad_set_query_function (modplug->srcpad, gst_modplug_src_query);
gst_element_set_loop_function (GST_ELEMENT (modplug), gst_modplug_loop);
modplug->Buffer = NULL;
@ -282,7 +287,83 @@ gst_modplug_setup (GstModPlug *modplug)
modplug->mSoundFile->SetReverbParameters( modplug->reverb_depth, modplug->reverb_delay );
}
static gboolean
gst_modplug_src_query (GstPad *pad, GstPadQueryType type,
GstFormat *format, gint64 *value)
{
gboolean res = TRUE;
GstModPlug *modplug;
float tmp;
modplug = GST_MODPLUG (gst_pad_get_parent (pad));
switch (type) {
case GST_PAD_QUERY_TOTAL:
switch (*format) {
case GST_FORMAT_DEFAULT:
*format = GST_FORMAT_TIME;
case GST_FORMAT_TIME:
*value=(gint64)modplug->mSoundFile->GetSongTime() * 1000000000LL;
break;
default:
res = FALSE;
break;
}
break;
case GST_PAD_QUERY_POSITION:
switch (*format) {
case GST_FORMAT_DEFAULT:
*format = GST_FORMAT_TIME;
default:
tmp = ((float)( modplug->mSoundFile->GetSongTime() * modplug->mSoundFile->GetCurrentPos() ) / (float)modplug->mSoundFile->GetMaxPosition() );
*value=(gint64)(tmp * 1000000000LL);
break;
}
default:
break;
}
return res;
}
static gboolean
gst_modplug_src_event (GstPad *pad, GstEvent *event)
{
gboolean res = TRUE;
GstModPlug *modplug;
modplug = GST_MODPLUG (gst_pad_get_parent (pad));
switch (GST_EVENT_TYPE (event)) {
/* the all-formats seek logic */
case GST_EVENT_SEEK:
{
gboolean flush;
GstFormat format;
format = GST_FORMAT_TIME;
/* shave off the flush flag, we'll need it later */
flush = GST_EVENT_SEEK_FLAGS (event) & GST_SEEK_FLAG_FLUSH;
/* assume the worst */
res = FALSE;
modplug->seek_at = GST_EVENT_SEEK_OFFSET (event);
}
default:
res = FALSE;
break;
}
return res;
}
static void
@ -291,7 +372,8 @@ gst_modplug_loop (GstElement *element)
GstModPlug *modplug;
GstBuffer *buffer_in, *buffer_out;
gint mode16bits;
guint64 total_samples, sync_point;
guint64 total_samples, sync_point;
float temp;
g_return_if_fail (element != NULL);
g_return_if_fail (GST_IS_MODPLUG (element));
@ -322,11 +404,6 @@ gst_modplug_loop (GstElement *element)
else
mode16bits = 8;
/* CSoundFile::SetWaveConfig ( modplug->frequency, mode16bits, modplug->channel );
CSoundFile::SetWaveConfigEx ( modplug->surround, !modplug->oversamp, modplug->reverb, true, modplug->megabass, modplug->noise_reduction, false );
CSoundFile::SetResamplingMode ( SRCMODE_SPLINE );
CSoundFile::SetSurroundParameters( 30, 100 );*/
gst_modplug_setup( modplug );
modplug->mSoundFile = new CSoundFile;
@ -357,6 +434,30 @@ gst_modplug_loop (GstElement *element)
sync_point = 0;
do {
if ( modplug->seek_at != 0 )
{
GstEvent *discont;
GstClockTime time;
int seek_to_pos;
gint64 total;
total = modplug->mSoundFile->GetSongTime() * 1000000000LL;
temp = (float) total / modplug->seek_at;
seek_to_pos = (int)( modplug->mSoundFile->GetMaxPosition() / temp );
modplug->mSoundFile->SetCurrentPos( seek_to_pos );
modplug->seek_at = 0;
/* get stream stats */
time = (gint64) (total * modplug->mSoundFile->GetCurrentPos() ) / modplug->mSoundFile->GetMaxPosition();
discont = gst_event_new_discontinuous (FALSE, GST_FORMAT_TIME, time, NULL );
gst_pad_push (modplug->srcpad, GST_BUFFER (discont));
}
if( modplug->mSoundFile->Read ( modplug->audiobuffer, modplug->length ) != 0 )
{
buffer_out = gst_buffer_new();
@ -364,14 +465,14 @@ gst_modplug_loop (GstElement *element)
GST_BUFFER_SIZE( buffer_out ) = modplug->length;
total_samples+=1152;
GST_BUFFER_TIMESTAMP( buffer_out ) = total_samples * GST_SECOND / modplug->frequency;
GST_BUFFER_TIMESTAMP( buffer_out ) = total_samples * GST_SECOND / modplug->frequency;
gst_pad_push( srcpad, buffer_out );
gst_element_yield (element);
gst_pad_push( srcpad, buffer_out );
gst_element_yield (element);
}
else
{
free( modplug->audiobuffer );
free( modplug->audiobuffer );
gst_element_set_eos (GST_ELEMENT (modplug));
gst_pad_push (modplug->srcpad, GST_BUFFER (gst_event_new (GST_EVENT_EOS)));
}
@ -383,54 +484,34 @@ gst_modplug_loop (GstElement *element)
static GstElementStateReturn
gst_modplug_change_state (GstElement *element)
{
GstModPlug *modplug;
GstModPlug *modplug;
g_return_val_if_fail (GST_IS_MODPLUG (element), GST_STATE_FAILURE);
modplug = GST_MODPLUG( element );
modplug = GST_MODPLUG (element);
GST_DEBUG (0,"state pending %d", GST_STATE_PENDING (element));
/* if going down into NULL state, close the file if it's open */
/* if (GST_STATE_PENDING (element) == GST_STATE_READY)
{
gst_modplug_setup(modplug);
if ( Player_Active() )
{
Player_TogglePause();
Player_SetPosition( 0 );
}
switch (GST_STATE_TRANSITION (element)) {
case GST_STATE_NULL_TO_READY:
// modplug->mSoundFile = new CSoundFile;
break;
case GST_STATE_READY_TO_PAUSED:
break;
case GST_STATE_PAUSED_TO_PLAYING:
break;
case GST_STATE_PLAYING_TO_PAUSED:
break;
case GST_STATE_PAUSED_TO_READY:
// modplug->mSoundFile->SetCurrentPos( 0 );
break;
case GST_STATE_READY_TO_NULL:
free( modplug->audiobuffer );
modplug->mSoundFile->Destroy();
break;
}
parent_class->change_state (element);
if (GST_STATE_PENDING (element) == GST_STATE_PLAYING)
{
if ( Player_Active() && Player_Paused() )
Player_TogglePause();
else
if ( ! Player_Active() )
Player_Start(module);
}
if (GST_STATE_PENDING (element) == GST_STATE_PAUSED)
if ( Player_Active() && ! Player_Paused() )
Player_TogglePause();
if (GST_STATE_PENDING (element) == GST_STATE_NULL)
ModPlug_Exit();
*/
/* if we haven't failed already, give the parent class a chance to ;-) */
if (GST_ELEMENT_CLASS (parent_class)->change_state)
return GST_ELEMENT_CLASS (parent_class)->change_state (element);
return GST_STATE_SUCCESS;
}
static void
gst_modplug_set_property (GObject *object, guint id, const GValue *value, GParamSpec *pspec )
{

2
gst/modplug/gstmodplug.h
View file

@ -63,6 +63,8 @@ struct _GstModPlug {
guchar *audiobuffer;
gint32 length;
gboolean restart;
gint64 seek_at;
CSoundFile *mSoundFile;
};