static int
startTransfer (t_pdp_ieee1394 *x)
{
//if ((x->dvfd=openDevice(format))<0){
// verbose(1, "DV4L: closed");
// return(0);
//}
//x->x_image.newimage=0;
//x->x_image.image.data=0;
//x->x_image.image.xsize=720;
//x->x_image.image.ysize=576;
//x->x_image.image.setCsizeByFormat(x->x_reqFormat);
//x->x_image.image.reallocate();
x->videobuf=NULL;
x->x_frame_ready = false;
if(x->x_decoder!=NULL)dv_decoder_free(x->x_decoder);
if (!(x->x_decoder=dv_decoder_new(1, 1, 1))){
//error("DV4L: unable to create DV-decoder...closing");
close_device(x);
return(0);
}
//x->x_decoder->quality=x->x_quality;
x->x_decoder->quality = DV_QUALITY_BEST;
verbose(1, "DV4L: DV decoding quality %d ", x->x_decoder->quality);
//fprintf(stderr,"before");
x->x_continue_thread = true;
pthread_create(&x->x_thread_id, 0, pdp_ieee1394_thread, x);
return 1;
}
static int rawdv_check_file(demuxer_t *demuxer)
{
unsigned char tmp_buffer[DV_PAL_FRAME_SIZE];
int bytes_read=0;
int result=0;
dv_decoder_t *td;
mp_msg(MSGT_DEMUX,MSGL_V,"Checking for DV\n");
bytes_read=stream_read(demuxer->stream,tmp_buffer,DV_PAL_FRAME_SIZE);
if ((bytes_read!=DV_PAL_FRAME_SIZE) && (bytes_read!=DV_NTSC_FRAME_SIZE))
return 0;
td=dv_decoder_new(TRUE,TRUE,FALSE);
if (!td)
return 0;
td->quality=DV_QUALITY_BEST;
result=dv_parse_header(td, tmp_buffer);
if (result<0)
return 0;
if ((( td->num_dif_seqs==10) || (td->num_dif_seqs==12))
&& (td->width==720)
&& ((td->height==576) || (td->height==480)))
result=1;
dv_decoder_free(td);
if (result)
return DEMUXER_TYPE_RAWDV;
else
return 0;
}
dv_decoder_t* init_global_rawdv_decoder(void)
{
if(!global_rawdv_decoder){
global_rawdv_decoder=dv_decoder_new(TRUE,TRUE,FALSE);
global_rawdv_decoder->quality=DV_QUALITY_BEST;
global_rawdv_decoder->prev_frame_decoded = 0;
}
return global_rawdv_decoder;
}
dv_decoder_t *dv_decoder_alloc( )
{
// We'll return a dv_decoder
dv_decoder_t *this = NULL;
// Lock the mutex
pthread_mutex_lock( &decoder_lock );
// Create the properties if necessary
if ( dv_decoders == NULL )
{
// Create the properties
dv_decoders = mlt_properties_new( );
// Create the stack
mlt_properties_set_data( dv_decoders, "stack", mlt_deque_init( ), 0, ( mlt_destructor )mlt_deque_close, NULL );
// Register the properties for clean up
mlt_factory_register_for_clean_up( dv_decoders, ( mlt_destructor )mlt_properties_close );
}
// Now try to obtain a decoder
if ( dv_decoders != NULL )
{
// Obtain the stack
mlt_deque stack = mlt_properties_get_data( dv_decoders, "stack", NULL );
// Pop the top of the stack
this = mlt_deque_pop_back( stack );
// Create a new decoder if none available
if ( this == NULL )
{
// We'll need a unique property ID for this
char label[ 256 ];
// Configure the decoder
this = dv_decoder_new( FALSE, FALSE, FALSE );
this->quality = DV_QUALITY_COLOR | DV_QUALITY_AC_2;
this->audio->arg_audio_emphasis = 2;
dv_set_audio_correction( this, DV_AUDIO_CORRECT_AVERAGE );
dv_set_error_log( this, NULL );
// Register it with the properties to ensure clean up
sprintf( label, "%p", this );
mlt_properties_set_data( dv_decoders, label, this, 0, ( mlt_destructor )dv_decoder_free, NULL );
}
}
// Unlock the mutex
pthread_mutex_unlock( &decoder_lock );
return this;
}
static GstStateChangeReturn
gst_dvdec_change_state (GstElement * element, GstStateChange transition)
{
GstDVDec *dvdec = GST_DVDEC (element);
GstStateChangeReturn ret;
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
dvdec->decoder =
dv_decoder_new (0, dvdec->clamp_luma, dvdec->clamp_chroma);
dvdec->decoder->quality = qualities[dvdec->quality];
dv_set_error_log (dvdec->decoder, NULL);
gst_video_info_init (&dvdec->vinfo);
gst_segment_init (&dvdec->segment, GST_FORMAT_UNDEFINED);
dvdec->src_negotiated = FALSE;
dvdec->sink_negotiated = FALSE;
dvdec->need_segment = FALSE;
/*
* Enable this function call when libdv2 0.100 or higher is more
* common
*/
/* dv_set_quality (dvdec->decoder, qualities [dvdec->quality]); */
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
dv_decoder_free (dvdec->decoder);
dvdec->decoder = NULL;
if (dvdec->pool) {
gst_buffer_pool_set_active (dvdec->pool, FALSE);
gst_object_unref (dvdec->pool);
dvdec->pool = NULL;
}
break;
case GST_STATE_CHANGE_READY_TO_NULL:
break;
default:
break;
}
return ret;
}
int lp_libdv_in::init(int audio_buffer_len, int nb_audio_channels)
{
int i;
pv_decoder = dv_decoder_new(TRUE, FALSE, FALSE);
if(pv_decoder == 0){
std::cerr << "lp_libdv_in::" << __FUNCTION__ << ": cannot initialise the dv decoder\n";
return -1;
}
// we init buffers here - make this else later ?? -> Ok for file buffer
// File buffer - is the size OK ?
pv_file_buf_size = 150000;
pv_file_buffer = (uint8_t*)malloc(pv_file_buf_size * sizeof(uint8_t));
if(pv_file_buffer == 0){
std::cerr << "lp_libdv_in::" << __FUNCTION__ << ": cannot allocate memory for file buffer\n";
return -1;
}
// Audio
for(i=0; i<4; i++){
pv_dv_audio_buffers[i] = (int16_t*)malloc(DV_AUDIO_MAX_SAMPLES * sizeof(int16_t));
if(pv_dv_audio_buffers[i] == 0){
std::cerr << "lp_libdv_in::" << __FUNCTION__ << ": cannot allocate memory for dv audio buffers\n";
return -1;
}
}
// Alloc audio ready data buffer for 2 total data length (for storage)
pv_audio_ready_buffer = new int16_t[audio_buffer_len * 4 * 2];
if(pv_audio_ready_buffer == 0){
std::cerr << "lp_libdv_in::" << __FUNCTION__ << ": cannot allocate memory for pv_audio_ready_buffer\n";
return -1;
}
pv_audio_channels = nb_audio_channels;
pv_lp_audio_buffer.init(audio_buffer_len * 4 * 4);
// Debug - infos
if(dv_format_wide(pv_decoder)){
std::cerr << "lp_libdv_in::" << __FUNCTION__ << ": Format video 16/9\n";
}
if(dv_format_normal(pv_decoder)){
std::cerr << "lp_libdv_in::" << __FUNCTION__ << ": Format video 4/3\n";
}
return 0;
}
dv_t* dv_new()
{
dv_t *dv = calloc(1, sizeof(dv_t));
if(!dv_initted)
{
pthread_mutexattr_t attr;
dv_initted = 1;
// dv_init();
pthread_mutexattr_init(&attr);
pthread_mutex_init(&dv_lock, &attr);
}
dv->decoder = dv_decoder_new(0, 0, 0);
dv_set_error_log (dv->decoder, 0);
dv->decoder->quality = DV_QUALITY_BEST;
dv->decoder->prev_frame_decoded = 0;
dv->use_mmx = 1;
return dv;
}
static demuxer_t* demux_open_rawdv(demuxer_t* demuxer)
{
unsigned char dv_frame[DV_PAL_FRAME_SIZE];
sh_video_t *sh_video = NULL;
rawdv_frames_t *frames = malloc(sizeof(rawdv_frames_t));
dv_decoder_t *dv_decoder=NULL;
mp_msg(MSGT_DEMUXER,MSGL_V,"demux_open_rawdv() end_pos %"PRId64"\n",(int64_t)demuxer->stream->end_pos);
// go back to the beginning
stream_reset(demuxer->stream);
stream_seek(demuxer->stream, 0);
//get the first frame
stream_read(demuxer->stream, dv_frame, DV_PAL_FRAME_SIZE);
//read params from this frame
dv_decoder=dv_decoder_new(TRUE,TRUE,FALSE);
dv_decoder->quality=DV_QUALITY_BEST;
if (dv_parse_header(dv_decoder, dv_frame) == -1)
return NULL;
// create a new video stream header
sh_video = new_sh_video(demuxer, 0);
if (!sh_video)
return NULL;
// make sure the demuxer knows about the new video stream header
// (even though new_sh_video() ought to take care of it)
demuxer->seekable = 1;
demuxer->video->sh = sh_video;
// make sure that the video demuxer stream header knows about its
// parent video demuxer stream (this is getting wacky), or else
// video_read_properties() will choke
sh_video->ds = demuxer->video;
// custom fourcc for internal MPlayer use
// sh_video->format = mmioFOURCC('R', 'A', 'D', 'V');
sh_video->format = mmioFOURCC('D', 'V', 'S', 'D');
sh_video->disp_w = dv_decoder->width;
sh_video->disp_h = dv_decoder->height;
mp_msg(MSGT_DEMUXER,MSGL_V,"demux_open_rawdv() frame_size: %d w: %d h: %d dif_seq: %d system: %d\n",dv_decoder->frame_size,dv_decoder->width, dv_decoder->height,dv_decoder->num_dif_seqs,dv_decoder->system);
sh_video->fps= (dv_decoder->system==e_dv_system_525_60?29.97:25);
sh_video->frametime = 1.0/sh_video->fps;
// emulate BITMAPINFOHEADER for win32 decoders:
sh_video->bih=malloc(sizeof(BITMAPINFOHEADER));
memset(sh_video->bih,0,sizeof(BITMAPINFOHEADER));
sh_video->bih->biSize=40;
sh_video->bih->biWidth = dv_decoder->width;
sh_video->bih->biHeight = dv_decoder->height;
sh_video->bih->biPlanes=1;
sh_video->bih->biBitCount=24;
sh_video->bih->biCompression=sh_video->format; // "DVSD"
sh_video->bih->biSizeImage=sh_video->bih->biWidth*sh_video->bih->biHeight*3;
frames->current_filepos=0;
frames->current_frame=0;
frames->frame_size=dv_decoder->frame_size;
frames->frame_number=demuxer->stream->end_pos/frames->frame_size;
mp_msg(MSGT_DEMUXER,MSGL_V,"demux_open_rawdv() seek to %qu, size: %d, dv_dec->frame_size: %d\n",frames->current_filepos,frames->frame_size, dv_decoder->frame_size);
if (dv_decoder->audio != NULL && demuxer->audio->id>=-1){
sh_audio_t *sh_audio = new_sh_audio(demuxer, 0);
demuxer->audio->sh = sh_audio;
sh_audio->ds = demuxer->audio;
mp_msg(MSGT_DEMUXER,MSGL_V,"demux_open_rawdv() chan: %d samplerate: %d\n",dv_decoder->audio->num_channels,dv_decoder->audio->frequency );
// custom fourcc for internal MPlayer use
sh_audio->format = mmioFOURCC('R', 'A', 'D', 'V');
sh_audio->wf = malloc(sizeof(WAVEFORMATEX));
memset(sh_audio->wf, 0, sizeof(WAVEFORMATEX));
sh_audio->wf->wFormatTag = sh_audio->format;
sh_audio->wf->nChannels = dv_decoder->audio->num_channels;
sh_audio->wf->wBitsPerSample = 16;
sh_audio->wf->nSamplesPerSec = dv_decoder->audio->frequency;
// info about the input stream:
sh_audio->wf->nAvgBytesPerSec = sh_video->fps*dv_decoder->frame_size;
sh_audio->wf->nBlockAlign = dv_decoder->frame_size;
// sh_audio->context=(void*)dv_decoder;
}
stream_reset(demuxer->stream);
stream_seek(demuxer->stream, 0);
dv_decoder_free(dv_decoder); //we keep this in the context of both stream headers
demuxer->priv=frames;
return demuxer;
}
int main( int argc, char **argv)
{
int infile = 0;
unsigned char dv_buffer[144000];
unsigned char video_buffer[720 * 576 * 3];
int16_t *audio_bufs[4];
dv_decoder_t *decoder = NULL;
dv_encoder_t *encoder = NULL;
int pitches[3];
unsigned char *pixels[3];
int i = 0, j;
int isPAL = FALSE;
pitches[0] = 720 * 2;
pixels[0] = video_buffer;
for(i = 0; i < 4; i++) {
audio_bufs[i] = malloc(DV_AUDIO_MAX_SAMPLES*sizeof(int16_t));
}
/* assume NTSC for now, switch to PAL later if needed */
decoder = dv_decoder_new(FALSE, FALSE, FALSE);
encoder = dv_encoder_new(FALSE, FALSE, FALSE);
decoder->quality = DV_QUALITY_BEST;
encoder->vlc_encode_passes = 3;
encoder->static_qno = 0;
encoder->force_dct = DV_DCT_AUTO;
i = 0;
while (read_frame(stdin, dv_buffer, &isPAL)) {
dv_parse_header(decoder, dv_buffer);
if (isPAL != encoder->isPAL && isPAL == TRUE) {
decoder->clamp_luma = FALSE;
decoder->clamp_chroma = FALSE;
encoder->clamp_luma = FALSE;
encoder->clamp_chroma = FALSE;
dv_reconfigure(FALSE, FALSE);
} else if (isPAL != encoder->isPAL) {
decoder->clamp_luma = TRUE;
decoder->clamp_chroma = TRUE;
decoder->add_ntsc_setup = TRUE;
encoder->clamp_luma = TRUE;
encoder->clamp_chroma = TRUE;
encoder->rem_ntsc_setup = TRUE;
dv_reconfigure(TRUE, TRUE);
}
encoder->isPAL = isPAL;
encoder->is16x9 = (dv_format_wide(decoder)>0);
dv_decode_full_audio(decoder, dv_buffer, audio_bufs);
for (j = 0; j < TIMES; j++) {
dv_decode_full_frame(decoder, dv_buffer, e_dv_color_yuv,
pixels, pitches);
dv_encode_full_frame(encoder, pixels, e_dv_color_yuv, dv_buffer);
}
dv_encode_full_audio(encoder, audio_bufs, 2, 48000, dv_buffer);
fwrite(dv_buffer, 1, (isPAL ? 144000 : 120000), stdout);
}
close(infile);
for(i=0; i < 4; i++) free(audio_bufs[i]);
dv_decoder_free(decoder);
dv_encoder_free(encoder);
return 0;
}
static int decode(quicktime_t *file, unsigned char **row_pointers, int track)
{
long bytes;
quicktime_video_map_t *vtrack = &(file->vtracks[track]);
quicktime_dv_codec_t *codec = ((quicktime_codec_t*)vtrack->codec)->priv;
int width = vtrack->track->tkhd.track_width;
int height = vtrack->track->tkhd.track_height;
int result = 0;
int i;
int decode_colormodel = 0;
int pitches[3] = { 720 * 2, 0, 0 };
quicktime_set_video_position(file, vtrack->current_position, track);
bytes = quicktime_frame_size(file, vtrack->current_position, track);
result = !quicktime_read_data(file, (char*)codec->data, bytes);
if( codec->dv_decoder && codec->parameters_changed )
{
dv_decoder_free( codec->dv_decoder );
codec->dv_decoder = NULL;
codec->parameters_changed = 0;
}
if( ! codec->dv_decoder )
{
pthread_mutex_lock( &libdv_init_mutex );
codec->dv_decoder = dv_decoder_new( codec->add_ntsc_setup,
codec->clamp_luma,
codec->clamp_chroma );
codec->dv_decoder->prev_frame_decoded = 0;
codec->parameters_changed = 0;
pthread_mutex_unlock( &libdv_init_mutex );
}
if(codec->dv_decoder)
{
int is_sequential =
check_sequentiality( row_pointers,
720 * cmodel_calculate_pixelsize(file->color_model),
file->out_h );
codec->dv_decoder->quality = codec->decode_quality;
dv_parse_header( codec->dv_decoder, codec->data );
// Libdv improperly decodes RGB colormodels.
if((file->color_model == BC_YUV422 ||
file->color_model == BC_RGB888) &&
file->in_x == 0 &&
file->in_y == 0 &&
file->in_w == width &&
file->in_h == height &&
file->out_w == width &&
file->out_h == height &&
is_sequential)
{
if( file->color_model == BC_YUV422 )
{
pitches[0] = 720 * 2;
dv_decode_full_frame( codec->dv_decoder, codec->data,
e_dv_color_yuv, row_pointers,
pitches );
}
else if( file->color_model == BC_RGB888)
{
pitches[0] = 720 * 3;
dv_decode_full_frame( codec->dv_decoder, codec->data,
e_dv_color_rgb, row_pointers,
pitches );
}
}
else
{
if(!codec->temp_frame)
{
codec->temp_frame = malloc(720 * 576 * 2);
codec->temp_rows = malloc(sizeof(unsigned char*) * 576);
for(i = 0; i < 576; i++)
codec->temp_rows[i] = codec->temp_frame + 720 * 2 * i;
}
decode_colormodel = BC_YUV422;
pitches[0] = 720 * 2;
dv_decode_full_frame( codec->dv_decoder, codec->data,
e_dv_color_yuv, codec->temp_rows,
pitches );
cmodel_transfer(row_pointers,
codec->temp_rows,
row_pointers[0],
row_pointers[1],
row_pointers[2],
codec->temp_rows[0],
codec->temp_rows[1],
codec->temp_rows[2],
file->in_x,
file->in_y,
file->in_w,
file->in_h,
0,
0,
file->out_w,
file->out_h,
decode_colormodel,
file->color_model,
0,
width,
file->out_w);
}
}
//printf(__FUNCTION__ " 2\n");
return result;
}
dv_t *rawdv_open_input_file(const char *filename, int mmap_size)
{
dv_t *dv = (dv_t*) vj_malloc(sizeof(dv_t));
if(!dv) return NULL;
memset(dv, 0, sizeof(dv_t));
dv_decoder_t *decoder = NULL;
uint8_t *tmp = (uint8_t*) vj_malloc(sizeof(uint8_t) * DV_HEADER_SIZE);
memset( tmp, 0, sizeof(uint8_t) * DV_HEADER_SIZE);
off_t file_size = 0;
int n = 0;
decoder = dv_decoder_new( 1,0,0);
dv->fd = open( filename, O_RDONLY );
if(!dv->fd)
{
dv_decoder_free(decoder);
rawdv_free(dv);
veejay_msg(VEEJAY_MSG_ERROR, "Unable to open file '%s'",filename);
if(tmp)free(tmp);
return NULL;
}
/* fseek sometimes lies about filesize - seek to end (lseek returns file offset from start)*/
file_size = lseek( dv->fd, 0, SEEK_END );
if( file_size < DV_HEADER_SIZE)
{
dv_decoder_free(decoder);
veejay_msg(VEEJAY_MSG_ERROR, "File %s is not a DV file", filename);
rawdv_free(dv);
if(tmp) free(tmp);
return NULL;
}
/* And back to start offset */
if( lseek(dv->fd,0, SEEK_SET ) < 0)
{
dv_decoder_free(decoder);
veejay_msg(VEEJAY_MSG_ERROR, "Seek error in %s", filename);
rawdv_free(dv);
if(tmp) free(tmp);
return NULL;
}
dv->mmap_region = NULL;
if( mmap_size > 0 ) // user wants mmap
{
dv->mmap_region = mmap_file( dv->fd, 0, (mmap_size * 720 * 576 * 3),
file_size );
}
if( dv->mmap_region == NULL )
{
if(mmap_size>0)
veejay_msg(VEEJAY_MSG_DEBUG, "Mmap of DV file failed - fallback to read");
n = read( dv->fd, tmp, DV_HEADER_SIZE );
}
else
{
n = mmap_read( dv->mmap_region, 0, DV_HEADER_SIZE, tmp );
}
if( n <= 0 )
{
dv_decoder_free(decoder);
rawdv_free(dv);
if(tmp) free(tmp);
veejay_msg(VEEJAY_MSG_ERROR, "Cannot read from '%s'", filename);
return NULL;
}
if( dv_parse_header( decoder, tmp) < 0 )
{
dv_decoder_free( decoder );
rawdv_free(dv);
if(tmp) free(tmp);
veejay_msg(VEEJAY_MSG_ERROR, "Cannot parse header of file %s", filename);
return NULL;
}
/* if(decoder->sampling == e_dv_sample_411)
{
dv_decoder_free( decoder );
rawdv_free(dv);
if(tmp) free(tmp);
return NULL;
}*/
if(dv_is_PAL( decoder ) )
dv->chunk_size = DV_PAL_SIZE;
else
dv->chunk_size = DV_NTSC_SIZE;
dv->width = decoder->width;
dv->height = decoder->height;
dv->audio_rate = decoder->audio->frequency;
dv->audio_chans = decoder->audio->num_channels;
dv->audio_qbytes = decoder->audio->quantization;
dv->fps = ( dv_is_PAL( decoder) ? 25.0 : 29.97 );
dv->size = decoder->frame_size;
dv->num_frames = (file_size - DV_HEADER_SIZE) / dv->size;
dv->fmt = decoder->sampling;
// dv->fmt = ( decoder->sampling == e_dv_sample_422 ? 1 : 0);
dv->buf = (uint8_t*) vj_malloc(sizeof(uint8_t*) * dv->size);
dv->offset = 0;
veejay_msg(VEEJAY_MSG_DEBUG,
"DV properties %d x %d, %f, %d frames, %d sampling",
dv->width,dv->height, dv->fps, dv->num_frames,
dv->fmt );
dv_decoder_free( decoder );
if(tmp)
free(tmp);
/* if(dv->audio_rate)
{
int i;
for( i = 0; i < 4; i ++ )
dv->audio_buffers[i] = (int16_t*) vj_malloc(sizeof(int16_t) * 2 * DV_AUDIO_MAX_SAMPLES);
}*/
/*
veejay_msg(VEEJAY_MSG_DEBUG,
"rawDV: num frames %ld, dimensions %d x %d, at %2.2f in %s",
dv->num_frames,
dv->width,
dv->height,
dv->fps,
(dv->fmt==1?"422":"420"));
veejay_msg(VEEJAY_MSG_DEBUG,
"rawDV: frame size %d, rate %d, channels %d, bits %d",
dv->size,
dv->audio_rate,
dv->audio_chans,
dv->audio_qbytes);*/
return dv;
}
DVFrame::DVFrame()
{
//#ifdef HAVE_LIBDV
decoder = dv_decoder_new( 0, 0, 0 );
decoder->quality = DV_QUALITY_COLOR | DV_QUALITY_AC_1;
decoder->audio->arg_audio_emphasis = 2;
dv_set_audio_correction ( decoder, DV_AUDIO_CORRECT_AVERAGE );
FILE* libdv_log = fopen( "/dev/null", "w" );
dv_set_error_log( decoder, libdv_log );
//#else
//if ( maps_initialized == false )
//{
//for ( int n = 0; n < 1944; ++n )
//{
//int sequence1 = ( ( n / 3 ) + 2 * ( n % 3 ) ) % 6;
//int sequence2 = sequence1 + 6;
//int block = 3 * ( n % 3 ) + ( ( n % 54 ) / 18 );
//block = 6 + block * 16;
//{
//register int byte = 8 + 2 * ( n / 54 );
//palmap_ch1[ n ] = sequence1 * 150 * 80 + block * 80 + byte;
//palmap_ch2[ n ] = sequence2 * 150 * 80 + block * 80 + byte;
//byte += ( n / 54 );
//palmap_2ch1[ n ] = sequence1 * 150 * 80 + block * 80 + byte;
//palmap_2ch2[ n ] = sequence2 * 150 * 80 + block * 80 + byte;
//}
//}
//for ( int n = 0; n < 1620; ++n )
//{
//int sequence1 = ( ( n / 3 ) + 2 * ( n % 3 ) ) % 5;
//int sequence2 = sequence1 + 5;
//int block = 3 * ( n % 3 ) + ( ( n % 45 ) / 15 );
//block = 6 + block * 16;
//{
//register int byte = 8 + 2 * ( n / 45 );
//ntscmap_ch1[ n ] = sequence1 * 150 * 80 + block * 80 + byte;
//ntscmap_ch2[ n ] = sequence2 * 150 * 80 + block * 80 + byte;
//byte += ( n / 45 );
//ntscmap_2ch1[ n ] = sequence1 * 150 * 80 + block * 80 + byte;
//ntscmap_2ch2[ n ] = sequence2 * 150 * 80 + block * 80 + byte;
//}
//}
//for ( int y = 0x700; y <= 0x7ff; ++y )
//compmap[ y ] = ( y - 0x600 ) << 6;
//for ( int y = 0x600; y <= 0x6ff; ++y )
//compmap[ y ] = ( y - 0x500 ) << 5;
//for ( int y = 0x500; y <= 0x5ff; ++y )
//compmap[ y ] = ( y - 0x400 ) << 4;
//for ( int y = 0x400; y <= 0x4ff; ++y )
//compmap[ y ] = ( y - 0x300 ) << 3;
//for ( int y = 0x300; y <= 0x3ff; ++y )
//compmap[ y ] = ( y - 0x200 ) << 2;
//for ( int y = 0x200; y <= 0x2ff; ++y )
//compmap[ y ] = ( y - 0x100 ) << 1;
//for ( int y = 0x000; y <= 0x1ff; ++y )
//compmap[ y ] = y;
//for ( int y = 0x800; y <= 0xfff; ++y )
//compmap[ y ] = -1 - compmap[ 0xfff - y ];
//maps_initialized = true;
//}
//#endif
for ( int n = 0; n < 4; n++ )
audio_buffers[ n ] = ( int16_t * ) malloc( 2 * DV_AUDIO_MAX_SAMPLES * sizeof( int16_t ) );
}
void lav_init_dv_decoder()
{
decoder = dv_decoder_new(0,0,0);
decoder->quality = DV_QUALITY_BEST;
}
