search for: speex_bits_write

Hi everybody, I have been examining on how I can use speex completely so I have one more question. I looked at examples and source code and it goes on. speex_bits_insert_terminator is called in speex_bits_write function. Shall I call this method one more time anywhere? Because in speexenc project, firstly speex_bits_insert_terminator is called then speex_bits_write is called when we assume that nframe=1. But according to manuel, only speex_bits_write function is called. What does speex_bits_insert_termina...

Hi everybody, I need clarification about speex_bits_write function usage. There is an example usage of it. nbBytes = speex_bits_write(&bits, cbits, MAX_FRAME_BYTES); I examine the content of this function and which value should I set to MAX_FRAME_BYTE. In speexenc project, it is 2000 and in manual it is 200. For example, I set it to 200 but the leng...

...ur helps. Yasemin The last argument should simply be the size of your own buffer, i.e. it's there to make sure there's no buffer overflow and that's it. If you know that at the bit rate you're using the output is 20 bytes, then you can choose to allocate a 20-byte buffer and let speex_bits_write() know that. Same idea as e.g. strncpy(), which is safer than strcpy(). Jean-Marc yaseminyilmaz wrote: > Hi everybody, > > I need clarification about speex_bits_write function usage. There is an > example usage of it. > > nbBytes = speex_bits_write(&bits, cbits, MAX_FRAME...

I'm reliably getting a corrupt stream when I do a certain encoding and decoding test. I've pegged it down to this: encoding some frames, calling speex_bits_write() and then encoding another frame produces a corrupt stream. My question is, is this a speex bug or incorrect API use? I can provide a test case (currently in python, will translate to c if needed). Thanks, Micky

how many calls can I make to speex_encode_int before calling speex_bits_write? Can I stuff 10 frames? - farhan

...having a problem using Speex - I'm getting white noise/static from the following process: (Load File) -> (Encode) -> (Decode) -> (Play) I know there's no issue with the loading or playing because (Load File)-> (Play) plays the file properly. I believe the problem lies with the speex_bits_write and speex_bits_read_from functions, because if I change my encode function to return the whole SpeexBits struct and my decode function to accept a SpeexBits struct, it plays the vocoded audio without any problem. ****************** Managed C++ Code *********************************** //Public fu...

David, Here's the trick ... do this just before your speex_bits_write(): speex_bits_insert_terminator(&bits); Then, when decoding, keep calling speex_decode() until it returns -1 or speex_bits_remaining(&bits) returns 0. Works for me, anyway. Tom David Barrett (dbarrett@quinthar.com) wrote: > > Hi, I'm using Speex and I want to pack multiple fr...

...uld not recognize the end of the 3rd (and last frame): speex_bits_remaining() keeps on returning value > 0, and a 4th attempt to decode (non-existant) frame will fail. I do not have the number of frames available, and would rely on the encoded data alone for decoding the 3 frames. >From the Speex_bits_write(), it's unclear whether it returns # of bits or bytes written. Is there an function to set the padding ? <p>TBL --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'speex-dev-re...

Ashhar Farhan a ?crit : > how many calls can I make to speex_encode_int before calling > speex_bits_write? Can I stuff 10 frames? Yes. Even if you put more, it'll just auto-resize the buffer. For 10 frames, it won't even have to resize. Cheers, Jean-Marc

...ility could also replay the files that were stored. The next obvious step is compression. I have yet to correlate the ASLA terminology with the terminology used in the speex documentation, and this is probably my biggest problem. With the speex API, I can create an executable, but when I run it, speex_bits_write always returns 38 bytes no matter what I send it. Here are some details of what I am doing, some questions I have, and hopefully someone can point out what I am doing wrong. The ALSA call to snd_pcm_hw_params_set_format is setting the sound format to unsigned 8 bit SND_PCM_FORMAT_U8 Q - Do I have...

Hi everyone, I've recently done some major internal changes in Speex aimed at reducing RAM (by nearly a factor of 2!) and improving quality of the fixed-point. In doing so, I might have accidently broken a few things. I'd like to hear feedback on the current svn code to make sure I fix any regression before the next release. I'm already aware that --enable-vorbis-psy is broken and

...igned char* of raw wav data (8000 samples, 8 bits / sample, mono) and encode it using speex, and have speex write it somewhere so I can do.. whatever with it. Simple ? I thought it would be :P The main issue I am having right now that is stopping me, is my program execution will never get past speex_bits_write.. speex_encode works fine but speex_bits_write blocks forever and my program simply hangs. If this is a common issue please let me know and I'll be on my way :) The only thing is, to be honest.. based on the documentation and the manual, I can't seem to fully grasp what I need to set up...

...nipulates audio one frame at the time, but what you do > after that if up to you. > What about the section 4.5 of the manual called "Packing and in-band signalling" where it is said that it is possible to encode more that one frame per packets by calling repeatedly speex_encode then speex_bits_write. Does this work with speex_encode_int ? Alain Aubord

...encoder_ctl(enc_state, SPEEX_GET_FRAME_SIZE, &frame_size); for(n=0; n<100; n++) { read_from_dev(fd1, (float *)input_frame, 1024); speex_bits_reset(&bits); speex_encode(enc_state, input_frame, &bits); nBytesFrame = speex_bits_nbytes(&bits); nbBytes = speex_bits_write(&bits, byte_ptr, nBytesFrame); write_to_file(fd2, byte_ptr, nbBytes); } speex_bits_destroy(&bits); speex_encoder_destroy(enc_state); <p>Thank you Bruno Rodrigues --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/...

...function (nb_decode_lost). > these are the functions that I removed: > > In bits.c: > speex_bits_init > speex_bits_init_buffer > speex_bits_destroy > speex_bits_reset > speex_bits_rewind > speex_bits_read_from > speex_bits_flush > speex_bits_read_whole_bytes > speex_bits_write > speex_bits_write_whole_bytes > speex_bits_unpack_signed > speex_bits_peek_unsigned > speex_bits_peek > speex_bits_nbytes > speex_bits_insert_terminator You probably don't need most of these, but I'm surprised you're not at least using speex_bits_init(), speex_bits_r...

...char **outBuff, UINT BufferFrames ) { INT nBytes = 0; float *pBuff = inBuff; if (!spx_state_) return 0; while (BufferFrames>0) { speex_bits_reset(&spx_bits_); speex_encode(spx_state_, pBuff, &spx_bits_); nBytes += speex_bits_write(&spx_bits_, outBuffer_, frameSize_); pBuff += frameSize_; BufferFrames -= frameSize_; } // Point the outBuff to the internal buffer *outBuff = outBuffer_; return nBytes; };

...there anything else I can do to shrink the code or am I reaching my limit? Thanks. these are the functions that I removed: In bits.c: speex_bits_init speex_bits_init_buffer speex_bits_destroy speex_bits_reset speex_bits_rewind speex_bits_read_from speex_bits_flush speex_bits_read_whole_bytes speex_bits_write speex_bits_write_whole_bytes speex_bits_unpack_signed speex_bits_peek_unsigned speex_bits_peek speex_bits_nbytes speex_bits_insert_terminator In cd_search.c: noise_codebook_quant noise_codebook_unquant In filters.c: compute_rms syn_percep_zero16 qmf_decomp qmf_synth In ltp.c: forced_pitch_qua...

hi, How do i detect whether there is silence in media using speex? Is there any API which decides that the audio data only contains silence? Basically i will have PCM linear data, I want to know whether it is complete silence. Is it that during encoding speex_bits_write will return a lesser number if the audio at byte_ptr contains silence? thanx, Rahul -- Rahul Arvind Jadhav Web: http://rahuljadhav.tripod.com <p>--- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this lis...

...rence to `speex_encoder_ctl' sampleenc.cc:(.text+0x6f): undefined reference to `speex_bits_init' sampleenc.cc:(.text+0xea): undefined reference to `speex_bits_reset' sampleenc.cc:(.text+0x106): undefined reference to `speex_encode' sampleenc.cc:(.text+0x123): undefined reference to `speex_bits_write' sampleenc.cc:(.text+0x181): undefined reference to `speex_encoder_destroy' sampleenc.cc:(.text+0x18c): undefined reference to `speex_bits_destroy' /tmp/ccXKa3LF.o:(.eh_frame+0x11): undefined reference to `__gxx_personality_v0' collect2: ld returned 1 exit status Can anyone help m...

...for me. I'm pretty sure the problem is on my end but I haven't figured it out yet... I thought it might be related to packing multiple frames together. Can you tell me if it's still ok to do speex_bits_init, call speex_encode several times, then speex_bits_insert_terminator, then speex_bits_write + speex_bits_destroy. And then on the decoding side do speex_bits_init, speex_bits_read_from, and loop on speex_decode until either it returns -1 or speex_bits_remaining returns <= 0? > If you still intend to work on your wrapper, it would be nice to keep it > available for people who...