Displaying 6 results from an estimated 6 matches for "wide_samples".
2004 Sep 10
2
Using libFLAC++
samples in FLAC are always signed. they must be signed going
into the encoder (flac converts unsigned samples to signed)
and they come out of the decoder signed.
Josh
--- David Bishop <tech@bishop.dhs.org> wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Followup to original question: how do I determine if a particular
> flac file is
> signed (and then, if
2004 Sep 10
0
Using libFLAC++
...vily cut down to deal with only 1 type of file (i.e., I'm not
dealing with differing endianess right now).
[this code is in my write callback]
static FLAC__int8 s8buffer[FLAC__MAX_BLOCK_SIZE * FLAC__MAX_CHANNELS * sizeof(FLAC__int32)];
FLAC__int16 *s16buffer = (FLAC__int16 *)s8buffer;
if( wide_samples > 0 ) {
for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++) {
for(channel = 0; channel < channels; channel++, sample++) {
s16buffer[sample] = (FLAC__int16)(buffer[channel][wide_sample]);
}
}
}
Sorry for the newbie-style questions, I...
2005 Jul 11
2
[BUG] --sector-align zero padding is not entirely zero
...ned 448 zero bytes at the end (112 samples). However,
the FLAC version contained 224 zero bytes, followed by 224 non-zero bytes.
I've tracked the bug to the calculation of the number of bytes to fill
the input_ buffer with, which is calculated in line 778 of encode.c as
follows:
data_bytes = wide_samples * (bps >> 3);
However, my understanding is that the input_buffer is always an array of
32-bit integers, and therefore the calculation should always be:
data_bytes = wide_samples * 4;
The expression (bps >> 3) is also used elsewhere in encode.c so you may
wish to examine those instanc...
2004 Sep 10
1
plugin optimizations
...replaygain is much better)
* FLAC__plugin_common__apply_gain
* accept FLAC__int32 *input[]
* noise shaping type moved into DitherContext (user will not be
confused by louder noise if shaping is switched on during
playback)
* supports more channels
* works correctly if wide_samples % 32 != 0
plugin_xmms/
* optimizations and updates following changes in plugin_common
(winamp plugins need update too!)
* preamp up to +24dB
* fixed crash when replaygain (or dither) is enabled during playback
* fixed 8bit input support
(Does winamp accept signed or unsigned 8bit? I...
2005 Jul 20
0
[BUG] --sector-align zero padding is not entirely zero
...ver,
> the FLAC version contained 224 zero bytes, followed by 224 non-zero
> bytes.
>
> I've tracked the bug to the calculation of the number of bytes to
> fill
> the input_ buffer with, which is calculated in line 778 of encode.c
> as
> follows:
>
> data_bytes = wide_samples * (bps >> 3);
>
> However, my understanding is that the input_buffer is always an array
> of
> 32-bit integers, and therefore the calculation should always be:
>
> data_bytes = wide_samples * 4;
>
> The expression (bps >> 3) is also used elsewhere in encode.c...
2004 Sep 10
0
http streaming in the xmms plugin
...}
}
! FLAC__StreamDecoderWriteStatus write_callback_(const FLAC__FileDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data)
{
file_info_struct *file_info = (file_info_struct *)client_data;
const unsigned channels = file_info->channels, wide_samples = frame->header.blocksize;
--- 535,720 ----
return 0; /* to silence the compiler warning about not returning a value */
}
!
! /*********** File decoder functions */
!
! static FLAC__bool file_decoder_init (void *decoder)
{
! return FLAC__file_decoder_init( (FLAC__FileDecoder*) decod...