static gint64
xmms_mpc_seek (xmms_xform_t *xform, gint64 offset,
xmms_xform_seek_mode_t whence, xmms_error_t *err)
{
xmms_mpc_data_t *data;
data = xmms_xform_private_data_get (xform);
g_return_val_if_fail (whence == XMMS_XFORM_SEEK_SET, -1);
#ifdef HAVE_MPCDEC_OLD
mpc_decoder_seek_sample (&data->decoder, offset);
#else
mpc_demux_seek_sample (data->demux, offset);
#endif
g_string_erase (data->buffer, 0, data->buffer->len);
return offset;
}
bool Seek_(int64 frame_offset)
{
mpc_decoder_seek_sample(&MPCDecoder, frame_offset);
return(true);
}
static gboolean
gst_musepackdec_handle_seek_event (GstMusepackDec * dec, GstEvent * event)
{
GstSeekType start_type, stop_type;
GstSeekFlags flags;
GstSegment segment;
GstFormat format;
gboolean flush;
gdouble rate;
gint64 start, stop;
gint samplerate;
gst_event_parse_seek (event, &rate, &format, &flags, &start_type, &start,
&stop_type, &stop);
if (format != GST_FORMAT_TIME && format != GST_FORMAT_DEFAULT) {
GST_DEBUG_OBJECT (dec, "seek failed: only TIME or DEFAULT format allowed");
return FALSE;
}
samplerate = g_atomic_int_get (&dec->rate);
if (format == GST_FORMAT_TIME) {
if (start_type != GST_SEEK_TYPE_NONE)
start = gst_util_uint64_scale_int (start, samplerate, GST_SECOND);
if (stop_type != GST_SEEK_TYPE_NONE)
stop = gst_util_uint64_scale_int (stop, samplerate, GST_SECOND);
}
flush = ((flags & GST_SEEK_FLAG_FLUSH) == GST_SEEK_FLAG_FLUSH);
if (flush)
gst_pad_push_event (dec->srcpad, gst_event_new_flush_start ());
else
gst_pad_pause_task (dec->sinkpad); /* not _stop_task()? */
GST_PAD_STREAM_LOCK (dec->sinkpad);
/* operate on segment copy until we know the seek worked */
segment = dec->segment;
gst_segment_set_seek (&segment, rate, GST_FORMAT_DEFAULT,
flags, start_type, start, stop_type, stop, NULL);
gst_pad_push_event (dec->sinkpad, gst_event_new_flush_stop ());
GST_DEBUG_OBJECT (dec, "segment: [%" G_GINT64_FORMAT "-%" G_GINT64_FORMAT
"] = [%" GST_TIME_FORMAT "-%" GST_TIME_FORMAT "]",
segment.start, segment.stop,
GST_TIME_ARGS (segment.start * GST_SECOND / dec->rate),
GST_TIME_ARGS (segment.stop * GST_SECOND / dec->rate));
GST_DEBUG_OBJECT (dec, "performing seek to sample %" G_GINT64_FORMAT,
segment.start);
if (segment.start < 0 || segment.start >= segment.duration) {
GST_WARNING_OBJECT (dec, "seek out of bounds");
goto failed;
}
#ifdef MPC_IS_OLD_API
if (!mpc_decoder_seek_sample (dec->d, segment.start))
goto failed;
#else
if (mpc_demux_seek_sample (dec->d, segment.start) != MPC_STATUS_OK)
goto failed;
#endif
if ((flags & GST_SEEK_FLAG_SEGMENT) == GST_SEEK_FLAG_SEGMENT) {
GST_DEBUG_OBJECT (dec, "posting SEGMENT_START message");
gst_element_post_message (GST_ELEMENT (dec),
gst_message_new_segment_start (GST_OBJECT (dec), GST_FORMAT_TIME,
gst_util_uint64_scale_int (segment.start, GST_SECOND, dec->rate)));
}
if (flush) {
gst_pad_push_event (dec->srcpad, gst_event_new_flush_stop ());
}
gst_segment_set_last_stop (&segment, GST_FORMAT_DEFAULT, segment.start);
dec->segment = segment;
gst_musepackdec_send_newsegment (dec);
GST_DEBUG_OBJECT (dec, "seek successful");
gst_pad_start_task (dec->sinkpad,
(GstTaskFunction) gst_musepackdec_loop, dec->sinkpad);
GST_PAD_STREAM_UNLOCK (dec->sinkpad);
return TRUE;
failed:
{
GST_WARNING_OBJECT (dec, "seek failed");
GST_PAD_STREAM_UNLOCK (dec->sinkpad);
return FALSE;
}
}
int decoder_seek(unsigned long id, double pos)
{
mpc_decoder_seek_sample(&pstreams[id].decoder, (mpc_uint32_t)(pos * pstreams[id].info.pcm_samples) );
return 0;
}
int cdrfile_read_audio_sector(CDRFile *p_cdrfile, void *buf, uint8 *SubPWBuf, lsn_t lsn)
{
if(SubPWBuf)
{
memset(SubPWBuf, 0, 96);
MakeSubQ(p_cdrfile, lsn, SubPWBuf);
}
if(p_cdrfile->p_cdio)
{
if(cdio_read_audio_sector(p_cdrfile->p_cdio, buf, lsn) < 0)
{
memset(buf, 0, 2352);
return(0);
}
Endian_A16_LE_to_NE(buf, 588 * 2);
return(1);
}
else
{
track_t track;
for(track = p_cdrfile->FirstTrack; track < (p_cdrfile->FirstTrack + p_cdrfile->NumTracks); track++)
{
if(lsn >= (p_cdrfile->Tracks[track].LSN - p_cdrfile->Tracks[track].pregap) && lsn < (p_cdrfile->Tracks[track].LSN + p_cdrfile->Tracks[track].sectors))
{
if(lsn < p_cdrfile->Tracks[track].LSN)
{
//puts("Pregap read");
memset(buf, 0, 2352);
}
else
{
if(p_cdrfile->Tracks[track].sf)
{
long SeekPos = (p_cdrfile->Tracks[track].FileOffset / 4) + (lsn - p_cdrfile->Tracks[track].LSN) * 588;
//printf("%d, %d\n", lsn, p_cdrfile->Tracks[track].LSN);
if(p_cdrfile->Tracks[track].LastSamplePos != SeekPos)
{
//printf("Seek: %d %d\n", SeekPos, p_cdrfile->Tracks[track].LastSamplePos);
sf_seek(p_cdrfile->Tracks[track].sf, SeekPos, SEEK_SET);
p_cdrfile->Tracks[track].LastSamplePos = SeekPos;
}
sf_count_t readcount = sf_read_short(p_cdrfile->Tracks[track].sf, (short*)buf, 588 * 2);
p_cdrfile->Tracks[track].LastSamplePos += readcount / 2;
}
else if(p_cdrfile->Tracks[track].ovfile)// vorbis
{
int cursection = 0;
if(p_cdrfile->Tracks[track].LastSamplePos != 588 * (lsn - p_cdrfile->Tracks[track].LSN))
{
ov_pcm_seek((OggVorbis_File *)p_cdrfile->Tracks[track].ovfile, (lsn - p_cdrfile->Tracks[track].LSN) * 588);
p_cdrfile->Tracks[track].LastSamplePos = 588 * (lsn - p_cdrfile->Tracks[track].LSN);
}
long toread = 2352;
while(toread > 0)
{
long didread = ov_read((OggVorbis_File *)p_cdrfile->Tracks[track].ovfile, (char*)buf, toread, &cursection);
if(didread == 0)
{
memset(buf, 0, toread);
toread = 0;
break;
}
buf = (uint8 *)buf + didread;
toread -= didread;
p_cdrfile->Tracks[track].LastSamplePos += didread / 4;
}
} // end if vorbis
else if(p_cdrfile->Tracks[track].MPCReaderFile) // MPC
{
//printf("%d %d\n", (lsn - p_cdrfile->Tracks[track].LSN), p_cdrfile->Tracks[track].LastSamplePos);
if(p_cdrfile->Tracks[track].LastSamplePos != 1176 * (lsn - p_cdrfile->Tracks[track].LSN))
{
mpc_decoder_seek_sample(p_cdrfile->Tracks[track].MPCDecoder, 588 * (lsn - p_cdrfile->Tracks[track].LSN));
p_cdrfile->Tracks[track].LastSamplePos = 1176 * (lsn - p_cdrfile->Tracks[track].LSN);
}
//MPC_SAMPLE_FORMAT sample_buffer[MPC_DECODER_BUFFER_LENGTH];
// MPC_SAMPLE_FORMAT MPCBuffer[MPC_DECODER_BUFFER_LENGTH];
// uint32 MPCBufferIn;
int16 *cowbuf = (int16 *)buf;
int32 toread = 1176;
while(toread)
{
int32 tmplen;
if(!p_cdrfile->Tracks[track].MPCBufferIn)
{
int status = mpc_decoder_decode(p_cdrfile->Tracks[track].MPCDecoder, p_cdrfile->Tracks[track].MPCBuffer, 0, 0);
if(status < 0)
{
printf("Bah\n");
break;
}
p_cdrfile->Tracks[track].MPCBufferIn = status * 2;
p_cdrfile->Tracks[track].MPCBufferOffs = 0;
}
tmplen = p_cdrfile->Tracks[track].MPCBufferIn;
if(tmplen >= toread)
tmplen = toread;
for(int x = 0; x < tmplen; x++)
{
int32 samp = p_cdrfile->Tracks[track].MPCBuffer[p_cdrfile->Tracks[track].MPCBufferOffs + x] >> 14;
//if(samp < - 32768 || samp > 32767) // This happens with some MPCs of ripped games I've tested, and it's not just 1 or 2 over, and I don't know why!
// printf("MPC Sample out of range: %d\n", samp);
*cowbuf = (int16)samp;
cowbuf++;
}
p_cdrfile->Tracks[track].MPCBufferOffs += tmplen;
toread -= tmplen;
p_cdrfile->Tracks[track].LastSamplePos += tmplen;
p_cdrfile->Tracks[track].MPCBufferIn -= tmplen;
}
}
else // Binary, woo.
{
long SeekPos = p_cdrfile->Tracks[track].FileOffset + 2352 * (lsn - p_cdrfile->Tracks[track].LSN); //(lsn - p_cdrfile->Tracks[track].index - p_cdrfile->Tracks[track].pregap);
if(p_cdrfile->Tracks[track].SubchannelMode)
SeekPos += 96 * (lsn - p_cdrfile->Tracks[track].LSN);
if(!fseek(p_cdrfile->Tracks[track].fp, SeekPos, SEEK_SET))
{
size_t didread = fread(buf, 1, 2352, p_cdrfile->Tracks[track].fp);
if(didread != 2352)
{
if(didread < 0) didread = 0;
memset((uint8*)buf + didread, 0, 2352 - didread);
}
if(SubPWBuf && p_cdrfile->Tracks[track].SubchannelMode)
{
fread(SubPWBuf, 1, 96, p_cdrfile->Tracks[track].fp);
}
if(p_cdrfile->Tracks[track].RawAudioMSBFirst)
Endian_A16_BE_to_NE(buf, 588 * 2);
else
Endian_A16_LE_to_NE(buf, 588 * 2);
}
else
memset(buf, 0, 2352);
}
} // end if audible part of audio track read.
break;
} // End if LSN is in range
} // end track search loop
if(track == (p_cdrfile->FirstTrack + p_cdrfile->NumTracks))
{
memset(buf, 0, 2352);
return(0);
}
return(1);
}
