void MPEGaudio:: Skip(float seconds)
{
/* Called only when there is no timestamp info in the MPEG */
printf("Audio: Skipping %f seconds...\n", seconds);
while (seconds > 0)
{
seconds -= (float) samplesperframe / ((float) frequencies[version][frequency]*(1+inputstereo));
if (!loadheader()) break;
}
}
MPEGaudio:: MPEGaudio(MPEGstream *stream, bool initSDL) : sdl_audio(initSDL)
{
/* Initialize MPEG audio */
mpeg = stream;
initialize();
/* Just be paranoid. If all goes well, this will be set to true */
valid_stream = false;
/* Analyze the MPEG audio stream */
if ( loadheader() ) {
SDL_AudioSpec wanted;
WantedSpec(&wanted);
/* Calculate the samples per frame */
samplesperframe = 32*wanted.channels;
if( layer == 3 ) {
samplesperframe *= 18;
if ( version == 0 ) {
samplesperframe *= 2;
}
} else {
samplesperframe *= SCALEBLOCK;
if ( layer == 2 ) {
samplesperframe *= 3;
}
}
if ( sdl_audio ) {
/* Open the audio, get actual audio hardware format and convert */
bool audio_active;
SDL_AudioSpec actual;
audio_active = (SDL_OpenAudio(&wanted, &actual) == 0);
if ( audio_active ) {
ActualSpec(&actual);
valid_stream = true;
} else {
SetError(SDL_GetError());
}
SDL_PauseAudio(0);
} else { /* The stream is always valid if we don't initialize SDL */
valid_stream = true;
}
Volume(100);
}
/* For using system timestamp */
for (int i=0; i<N_TIMESTAMPS; i++)
timestamp[i] = -1;
}
void
MPEGaudio:: Skip(float seconds)
{
#ifdef THREADED_AUDIO
/* Stop the decode thread */
StopDecoding();
#endif
/* Called only when there is no timestamp info in the MPEG */
//printf("Audio: Skipping %f seconds...\n", seconds);
while(seconds > 0)
{
seconds -= (float) samplesperframe / ((float) frequencies[version][frequency]*(1+inputstereo));
if(!loadheader()) break;
}
#ifdef THREADED_AUDIO
StartDecoding();
#endif
}
MPEGaudio:: MPEGaudio(MPEGstream *stream, bool initSDL) : sdl_audio(initSDL)
{
/* Initialize MPEG audio */
mpeg = stream;
initialize();
/* Just be paranoid. If all goes well, this will be set to true */
valid_stream = false;
/* Analyze the MPEG audio stream */
if ( loadheader() )
{
PSPL_AUDIO_SPEC wanted;
WantedSpec(&wanted);
/* Calculate the samples per frame */
samplesperframe = 32 * wanted.channels;
if ( layer == 3 )
{
samplesperframe *= 18;
if ( version == 0 )
{
samplesperframe *= 2;
}
}
else
{
samplesperframe *= SCALEBLOCK;
if ( layer == 2 )
{
samplesperframe *= 3;
}
}
if ( sdl_audio )
{
/* ていうか、ここでSDL audio ( PSPL_OpenAudio() )呼ばれると, SDL mixer 的には都合が悪い */
/* Open the audio, get actual audio hardware format and convert */
bool audio_active;
PSPL_AUDIO_SPEC actual;
audio_active = (PSPL_OpenAudio(&wanted, &actual) == 0);
if ( audio_active )
{
ActualSpec(&actual);
valid_stream = true;
}
else
{
smpeg_SetError_bbb(SDL_GetError());
}
PSPL_PauseAudio(0);
}
else /* The stream is always valid if we don't initialize SDL */
{
valid_stream = true;
}
//volume = (SDL_MIX_MAXVOLUME);//Volume(100);
}
/* For using system timestamp */
{
int i;
for (i=0; i<N_TIMESTAMPS; i++)
{ timestamp[i] = -1;}
}
}
MPEGaudio:: MPEGaudio(MPEGstream *stream, bool initSDL)
: sdl_audio(initSDL)
, mpeg(stream)
, valid_stream(0)
, stereo(false)
, rate_in_s(0.0)
, frags_playing(0)
, frag_time(0)
#ifdef THREADED_AUDIO
, decoding(false)
, decode_thread(NULL)
#endif
{
memset(&sideinfo, '\0', sizeof (sideinfo));
/* Initialize MPEG audio */
initialize();
/* Just be paranoid. If all goes well, this will be set to true */
valid_stream = false;
/* Analyze the MPEG audio stream */
if ( loadheader() ) {
SDL_AudioSpec wanted;
WantedSpec(&wanted);
/* Calculate the samples per frame */
samplesperframe = 32*wanted.channels;
if( layer == 3 ) {
samplesperframe *= 18;
if ( version == 0 ) {
samplesperframe *= 2;
}
} else {
samplesperframe *= SCALEBLOCK;
if ( layer == 2 ) {
samplesperframe *= 3;
}
}
if ( sdl_audio ) {
/* Open the audio, get actual audio hardware format and convert */
bool audio_active;
SDL_AudioSpec actual;
audio_active = (SDL_OpenAudio(&wanted, &actual) == 0);
if ( audio_active ) {
ActualSpec(&actual);
valid_stream = true;
} else {
SetError(SDL_GetError());
}
SDL_PauseAudio(0);
} else { /* The stream is always valid if we don't initialize SDL */
valid_stream = true;
}
Volume(100);
}
/* For using system timestamp */
for (int i=0; i<N_TIMESTAMPS; i++)
timestamp[i] = -1;
}
static int
transfer( /* transfer a Radiance picture */
char *ospec
)
{
char oname[PATH_MAX];
FILE *fp;
int order;
int xmax, ymax;
COLR *scanin;
int y;
/* get header info. */
if (!(y = loadheader(stdin)))
return(0);
if (y < 0 || (order = fgetresolu(&xmax, &ymax, stdin)) < 0) {
fprintf(stderr, "%s: bad input format\n", progname);
exit(1);
}
/* did we pass the target frame? */
if (findframe && findframe < frameno)
return(0);
/* allocate scanline */
scanin = (COLR *)tempbuffer(xmax*sizeof(COLR));
if (scanin == NULL) {
perror(progname);
exit(1);
}
/* skip frame? */
if (findframe > frameno) {
for (y = ymax; y--; )
if (freadcolrs(scanin, xmax, stdin) < 0) {
fprintf(stderr,
"%s: error reading input picture\n",
progname);
exit(1);
}
return(1);
}
/* open output file/command */
if (ospec == NULL) {
strcpy(oname, "<stdout>");
fp = stdout;
} else {
sprintf(oname, ospec, frameno);
if (oname[0] == '!') {
if ((fp = popen(oname+1, "w")) == NULL) {
fprintf(stderr, "%s: cannot start \"%s\"\n",
progname, oname);
exit(1);
}
} else {
if (!force && access(oname, 0) >= 0) {
fprintf(stderr,
"%s: output file \"%s\" exists\n",
progname, oname);
exit(1);
}
if ((fp = fopen(oname, "w")) == NULL) {
fprintf(stderr, "%s: ", progname);
perror(oname);
exit(1);
}
}
}
SET_FILE_BINARY(fp);
dumpheader(fp); /* put out header */
fputs(progname, fp);
if (bradj)
fprintf(fp, " -e %+d", bradj);
if (!doflat)
fputs(" -r", fp);
fputc('\n', fp);
if (bradj)
fputexpos(pow(2.0, (double)bradj), fp);
fputc('\n', fp);
fputresolu(order, xmax, ymax, fp);
/* transfer picture */
for (y = ymax; y--; ) {
if (freadcolrs(scanin, xmax, stdin) < 0) {
fprintf(stderr, "%s: error reading input picture\n",
progname);
exit(1);
}
if (bradj)
shiftcolrs(scanin, xmax, bradj);
if (doflat)
putbinary((char *)scanin, sizeof(COLR), xmax, fp);
else
fwritecolrs(scanin, xmax, fp);
if (ferror(fp)) {
fprintf(stderr, "%s: error writing output to \"%s\"\n",
progname, oname);
exit(1);
}
}
/* clean up */
if (oname[0] == '!')
pclose(fp);
else if (ospec != NULL)
fclose(fp);
return(1);
}
void playfile(FIL* fp)
{
FRESULT res;
DWORD size;
UINT rsize;
UINT rb;
size = loadheader(fp);
if (size < 1024) return;
usart_write_string("loadheader : OK\r\n");
res = f_read(fp, buffer, 256 - (fp->fptr % 256) , &rb);
size -= rb;
playcnt = rb;
if (res != FR_OK) return;
res = f_read(fp, buffer+256, 256, &rb);
size -= rb;
readcnt = rb;
if (res != FR_OK || rb != 256) return;
playb = readb = 0;
playidx = 0;
usart_write_string("playfile : start\r\n");
startplayisr();
for (;;) {
uint8_t p, r;
do {
cli();
p = playb;
r = readb;
sei();
} while (p == r);
rsize = (size > 256) ? 256 : (UINT)size;
res = f_read(fp, buffer + ((uint16_t)readb << 8), rsize, &rb);
if (res != FR_OK) break;
size -= rb;
cli();
readb = playb;
readcnt = rb;
sei();
if (rb != 256) break;
}
while (playcnt) ;
stopplayisr();
usart_write_string("playfile : play end\r\n");
/* Center Level */
OCR2B = 125;
}
