Displaying 20 results from an estimated 32 matches for "nb_channel".
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nb_channels
2009 Aug 05
0
Bug in libspeexdsp resampler
...t *in, spx_uint32_t *in_len, float *out, spx_uint32_t
*out_len)
{
spx_uint32_t i;
int istride_save, ostride_save;
spx_uint32_t bak_in_len = *in_len;
spx_uint32_t bak_out_len = *out_len;
istride_save = st->in_stride;
ostride_save = st->out_stride;
st->in_stride = st->out_stride = st->nb_channels;
for (i=0;i<st->nb_channels;i++)
{
*in_len = bak_in_len;
*out_len = bak_out_len;
if (in != NULL)
speex_resampler_process_float(st, i, in+i, in_len, out+i, out_len);
else
speex_resampler_process_float(st, i, NULL, in_len, out+i, out_len);
}
st->in_stride = istride_save;
st->out_stride =...
2012 May 02
1
[PATCH] resample: Fix input indexing bug from interleaved functions
...{
spx_uint32_t i;
int istride_save, ostride_save;
- spx_uint32_t bak_len = *out_len;
+ spx_uint32_t bak_out_len = *out_len;
+ spx_uint32_t bak_in_len = *in_len;
istride_save = st->in_stride;
ostride_save = st->out_stride;
st->in_stride = st->out_stride = st->nb_channels;
for (i=0;i<st->nb_channels;i++)
{
- *out_len = bak_len;
+ *out_len = bak_out_len;
+ *in_len = bak_in_len;
if (in != NULL)
speex_resampler_process_float(st, i, in+i, in_len, out+i, out_len);
else
@@ -991,13 +993,15 @@ EXPORT int speex_resampler_...
2008 May 03
2
Resampler (no api)
...YS
+#define FIXED_STACK_ALLOC 8192
+#else
+#define FIXED_STACK_ALLOC 1024
+#endif
+
typedef int (*resampler_basic_func)(SpeexResamplerState *, spx_uint32_t , const spx_word16_t *, spx_uint32_t *, spx_word16_t *, spx_uint32_t *);
struct SpeexResamplerState_ {
@@ -109,6 +117,7 @@
spx_uint32_t nb_channels;
spx_uint32_t filt_len;
spx_uint32_t mem_alloc_size;
+ spx_uint32_t buffer_size;
int int_advance;
int frac_advance;
float cutoff;
@@ -317,47 +326,47 @@
static int resampler_basic_direct_single(SpeexResamplerState *st, spx_uint32_t channel_index, const sp...
2008 May 03
0
Resampler, memory only variant
...YS
+#define FIXED_STACK_ALLOC 8192
+#else
+#define FIXED_STACK_ALLOC 1024
+#endif
+
typedef int (*resampler_basic_func)(SpeexResamplerState *, spx_uint32_t , const spx_word16_t *, spx_uint32_t *, spx_word16_t *, spx_uint32_t *);
struct SpeexResamplerState_ {
@@ -109,6 +117,7 @@
spx_uint32_t nb_channels;
spx_uint32_t filt_len;
spx_uint32_t mem_alloc_size;
+ spx_uint32_t buffer_size;
int int_advance;
int frac_advance;
float cutoff;
@@ -317,47 +326,47 @@
static int resampler_basic_direct_single(SpeexResamplerState *st, spx_uint32_t channel_index, const sp...
2006 Apr 19
1
HW-Speex: Fileformat and encoding process
...mat of the frames. What is the reason that
the first frame after the header is larger than the other frames?
Thanks
ST
speex-1.1.12/src/speexenc -n --bitrate 12000 female.wav female_nb_12.spx
readspx female_nb_12.spx |head -20
speex header
Version:1.1.12
rate:8000
mode:0
mode_bitstream_version:4
nb_channels:1
bitrate:-1
frame_size:160
vbr:0
frames_per_packet:1
extra_headers:0
Framesize:33
25
0
0
0
69
110
99
111
speex-1.1.12/src/speexenc -n --bitrate 8000 female.wav female_nb_8.spx
readspx female_nb_8.spx |head -20
speex header
Version:1.1.12
rate:8000
mode:0
mode_bitstream_version:4
nb_channels:1
bi...
2018 Aug 30
0
[PATCH] Apply equal bit allocation to ambisonic channels
...nal_rate;
- opus_int32 leftover_bits;
-
- /* Each nondirectional channel gets (rate_ratio_num / rate_ratio_den) times
- * as many bits as all other ambisonics channels.
- */
- const int rate_ratio_num = 4;
- const int rate_ratio_den = 3;
+ opus_int32 per_stream_rate;
+
const int nb_channels = st->layout.nb_streams + st->layout.nb_coupled_streams;
- /* The omnidirectional ambisonics and non-diegetic stereo channels */
- const int nb_nondirectional_channels = st->layout.nb_coupled_streams * 2 + 1;
- /* The remaining ambisonics channels */
- const int nb_directional_cha...
2004 Aug 06
2
Multichannel Speex
Hello!
The question is: "Does Speex support multiple channels?"
Speex is reported to encode only mono and stereo signals.
But I found 'nb_channel' defined in <speex_header.h> among the Public
Attributes.
Does this mean that it is also possible to store more than two channels in
one single speex-file?
Maybe it will be possible in the next future...?
TIA
--
Mch
--- >8 ----
List archives: http://www.xiph.org/archives/
Ogg pro...
2009 Mar 17
2
Resample UltraWideBand to NarrowBand
...me to
G711.
But when I use Speex UltraWideBand the Asterisk don't convert it.
Then I need in my Asterisk Channel Source include the Speex Library in
resample this frame in 32KHz to 8KHz.
Searching for it in Speex Doc, I found it:
SpeexResamplerState *resampler;
resampler = speex_resampler_init(nb_channels, input_rate, output_rate,
quality, &err);
err = speex_resampler_process_int(resampler, channelID, in,
&in_length, out, &out_length);
But in my source I have one *dataframe where is my payload. How I can use it
to resample my frame?
Thanks you very much, Thiago.
-------------- next pa...
2008 Mar 29
0
GCC/ELF Visibility patch
...;query(mode->mode, request, ptr);
}
Index: libspeex/resample.c
===================================================================
--- libspeex/resample.c (revision 14645)
+++ libspeex/resample.c (working copy)
@@ -721,12 +721,12 @@
}
-SpeexResamplerState *speex_resampler_init(spx_uint32_t nb_channels, spx_uint32_t in_rate, spx_uint32_t out_rate, int quality, int *err)
+EXPORT SpeexResamplerState *speex_resampler_init(spx_uint32_t nb_channels, spx_uint32_t in_rate, spx_uint32_t out_rate, int quality, int *err)
{
return speex_resampler_init_frac(nb_channels, in_rate, out_rate, in_rate, out_...
2008 Mar 29
2
GCC/ELF Visibility patch (fwd)
...;query(mode->mode, request, ptr);
}
Index: libspeex/resample.c
===================================================================
--- libspeex/resample.c (revision 14645)
+++ libspeex/resample.c (working copy)
@@ -721,12 +721,12 @@
}
-SpeexResamplerState *speex_resampler_init(spx_uint32_t nb_channels, spx_uint32_t in_rate, spx_uint32_t out_rate, int quality, int *err)
+EXPORT SpeexResamplerState *speex_resampler_init(spx_uint32_t nb_channels, spx_uint32_t in_rate, spx_uint32_t out_rate, int quality, int *err)
{
return speex_resampler_init_frac(nb_channels, in_rate, out_rate, in_rate, out_...
2014 Apr 15
6
[PATCH 0/3] misc. cleanup
Hello,
some misc. cleanup patches for speexdsp, nothing big
I'm not sure about how to submit patches, so this is a test balloon :)
ultimately, I'd like to fix the FIXED_POINT issue, see
http://lists.xiph.org/pipermail/speex-dev/2013-December/008465.html
currently, I think the only way to find out how speexdsp has been compiled is
to resample some bytes and observe the output; which is
2010 Nov 10
0
bug fix for speex_resampler_reset_mem?
...eex_resampler_destroy(state);
When I run it this way, my two output waveforms are not identical on a
binary basis.
Changing speex_resampler_reset_mem() as follows seems to fix the problem:
EXPORT int speex_resampler_reset_mem(SpeexResamplerState *st)
{
spx_uint32_t i;
for (i=0;i<st->nb_channels*(st->filt_len-1);i++)
st->mem[i] = 0;
// added bugfix below:
st->started = 0;
for (i=0;i<st->nb_channels;i++)
{
st->last_sample[i] = 0;
st->magic_samples[i] = 0;
st->samp_frac_num[i] = 0;
}
return RESAMPLER_ERR_SUCCESS;
}
Note t...
2015 Aug 07
0
[PATCH] Silence clang -Wcast-align warnings
...us_multistream_encoder.c
index 6e87337..7163d14 100644
--- a/src/opus_multistream_encoder.c
+++ b/src/opus_multistream_encoder.c
@@ -98,7 +98,8 @@ static opus_val32 *ms_get_preemph_mem(OpusMSEncoder *st)
else
ptr += align(mono_size);
}
- return (opus_val32*)(ptr+st->layout.nb_channels*120*sizeof(opus_val32));
+ /* void* cast avoids clang -Wcast-align warning */
+ return (opus_val32*)(void*)(ptr+st->layout.nb_channels*120*sizeof(opus_val32));
}
static opus_val32 *ms_get_window_mem(OpusMSEncoder *st)
@@ -117,7 +118,8 @@ static opus_val32 *ms_get_window_mem(OpusMSEncode...
2006 May 16
2
Determining length of speex file speech
...e encoding, which I did not), and multiply this with
.02 (20 milliseconds).
I did this by hand, for example on the file I send yesterday when asking
about the noise, so the output of the program is:
$ readspx spfe49_1-small.spx
speex header
Version:1.1.12
rate:44100
mode:2
mode_bitstream_version:4
nb_channels:2
bitrate:-1
frame_size:640
vbr:0
frames_per_packet:1
extra_headers:0
Page #2: 1 packets.
Page #3: 45 packets.
Page #4: 45 packets.
Page #5: 45 packets.
Page #6: 45 packets.
Page #7: 45 packets.
Page #8: 45 packets.
Pages: 8
Packets: 272
Calculating things per hand here 6*45 speex frames, so the...
2014 Jun 04
4
opus_multistream_encode_float not working in libopus 1.1
On Wed, Jun 4, 2014 at 4:31 PM, Timothy B. Terriberry <tterribe at xiph.org> wrote:
> Alpha Thinktink wrote:
>> max_data_bytes=-11
>
> That value is passed in by you. I also don't think passing such a value
> would have worked in earlier releases. It indicates the size of the
> buffer you are passing to the encoder to receive the encoded output.
Actually, I'm
2006 May 16
0
Determining length of speex file speech
...t; .02 (20 milliseconds).
> I did this by hand, for example on the file I send yesterday when asking
> about the noise, so the output of the program is:
>
> $ readspx spfe49_1-small.spx
> speex header
> Version:1.1.12
> rate:44100
> mode:2
> mode_bitstream_version:4
> nb_channels:2
> bitrate:-1
> frame_size:640
> vbr:0
> frames_per_packet:1
> extra_headers:0
> Page #2: 1 packets.
> Page #3: 45 packets.
> Page #4: 45 packets.
> Page #5: 45 packets.
> Page #6: 45 packets.
> Page #7: 45 packets.
> Page #8: 45 packets.
> Pages: 8
> Pac...
2009 Mar 18
0
Resample UltraWideBand to NarrowBand
....
But when I use Speex UltraWideBand the Asterisk don't convert it.
Then I need in my Asterisk Channel Source include the Speex Library in resample this frame in 32KHz to 8KHz.
Searching for it in Speex Doc, I found it:
SpeexResamplerState *resampler;
resampler = speex_resampler_init(nb_channels, input_rate, output_rate, quality, &err);
err = speex_resampler_process_int(resampler, channelID, in, &in_length, out, &out_length);
But in my source I have one *dataframe where is my payload. How I can use it to resample my frame?
Thanks you very much, Thiago.
-------------...
2014 Jun 05
0
opus_multistream_encode_float not working in libopus 1.1
...(curr_max,MS_FRAME_TMP);
which left curr_max at -13
The result at line 853 is opus_encode_native is called with parameters
so thusly:
(encoder state pointer, buf pointer, frame_size=960, tmp_data pointer,
curr_max=-13, lsb_depth=24, pcm pointer, analysis_frame_size=960,
c1=0, c2=-1, st->layout.nb_channels=4, downmix pointer, float_api=1);
I don't know what to suggest as I've never tinkered with the opus
library internals, nor have I ever compiled it before today and do not
know what it looked like in previous versions. Sorry.
2014 Jun 21
1
opus_multistream_encode_float not working in libopus 1.1
...h left curr_max at -13
>
> The result at line 853 is opus_encode_native is called with parameters
> so thusly:
> (encoder state pointer, buf pointer, frame_size=960, tmp_data pointer,
> curr_max=-13, lsb_depth=24, pcm pointer, analysis_frame_size=960,
> c1=0, c2=-1, st->layout.nb_channels=4, downmix pointer, float_api=1);
>
>
> I don't know what to suggest as I've never tinkered with the opus
> library internals, nor have I ever compiled it before today and do not
> know what it looked like in previous versions. Sorry.
> ________________________________...
2015 Feb 04
0
[RFC PATCH v2] armv7(float): Optimize encode usecase using NE10 library
...if (upsample != 1)
{
int bound = len;
@@ -411,6 +413,7 @@ static int opus_multistream_encoder_init_impl(
(streams<1) || (coupled_streams<0) || (streams>255-coupled_streams))
return OPUS_BAD_ARG;
+ st->arch = opus_select_arch();
st->layout.nb_channels = channels;
st->layout.nb_streams = streams;
st->layout.nb_coupled_streams = coupled_streams;
@@ -767,7 +770,7 @@ static int opus_multistream_encode_native
ALLOC(bandSMR, 21*st->layout.nb_channels, opus_val16);
if (st->surround)
{
- surround_analysis(celt_mode,...