search for: 16bps

stream_encoder.c has the following code: /* try to keep qlp coeff precision such that only 32-bit math is required for decode of <=16bps streams */ if(subframe_bps <= 16) { ... But FLAC can convert 16-bit input to 17-bit if mid-side coding is used. So, does it make sense to compare subframe_bps with 17? (The patch is attached. What do you think about it?) -------------- next part -------------- A non-text attachment was scrub...

...ions: -P 0 -b 4608 -m -l 8 -q 0 -r 3,3 -R 0 -V test: 101% complete, ratio=0.078 Which is clearly wrong (101%), and I think should probably trigger an error (but doesn't). Based on a few quick tests, this kind of problem seems to occur with any file smaller than 4k (at least when using 44100Hz/16bps/2chan). -- - mdz

...> if you 'flac -t' the encoded 8-bit mono file, does it test ok? > > Yes, it does. Here is what file(1) says about it: >... > Everything looks fine until I try to play it with the xmms plugin. > Well, egg on my face... I just looked at the code, and I have only written 16bps support into the plugin. From scraping my memory, I think this was because I couldn't find enough info on how to format the unencoded audio data when passing it up to the player and the only example I had was for 16bps stereo. I'll look for some more code somewhere or maybe just play some...

...es are usually 0.5% larger then when not using the switch. I stumbled upon this code in stream_encoder > if(encoder->protected_->do_qlp_coeff_prec_search) { > min_qlp_coeff_precision = FLAC__MIN_QLP_COEFF_PRECISION; > /* try to ensure a 32-bit datapath throughout for > 16bps(+1bps for side channel) or less */ > if(subframe_bps <= 17) { > max_qlp_coeff_precision = flac_min(32 - subframe_bps - > lpc_order, FLAC__MAX_QLP_COEFF_PRECISION); > max_qlp_coeff_precision = > flac_max(max_qlp_coeff_precision, min_qlp_coeff_precision); >...

...coder.c +++ b/src/libFLAC/stream_encoder.c @@ -3428,9 +3428,9 @@ FLAC__bool process_subframe_( } if(encoder->protected_->do_qlp_coeff_prec_search) { min_qlp_coeff_precision = FLAC__MIN_QLP_COEFF_PRECISION; - /* try to ensure a 32-bit datapath throughout for 16bps(+1bps for side channel) or less */ - if(subframe_bps <= 17) { - max_qlp_coeff_precision = flac_min(32 - subframe_bps - lpc_order, FLAC__MAX_QLP_COEFF_PRECISION); + /* try to keep qlp coeff precision such that only 32-bit math is required for decode of <=16bps streams...

...t match original raw data thanks On Tue, Nov 13, 2001 at 02:38:32AM +0000, Adam M. Costello wrote: > Matt Zimmerman <mdz@debian.org> wrote: > > > Based on a few quick tests, this kind of problem seems to occur with > > any file smaller than 4k (at least when using 44100Hz/16bps/2chan). > > I don't think the problem is related to file size. The exact same > thing happens when I use a file over 700 MB. That's actually where I > discovered the problem, then I tried a small file to see if the behavior > was consistent. You are right; my test was fla...

...as CHAR data, whereas my data is UNSIGNED CHAR... would this be an issue ? If so, what would be the proper way for me to convert from char* to unsigned char* ? If it's not an issue, any ideas on what could be causing it ? (IE. the format of my raw data etc which btw is 8000 samples/sec mono 16bps) Thanks :) _________________________________________________________________ Take charge with a pop-up guard built on patented Microsoft® SmartScreen Technology http://join.msn.com/?pgmarket=en-ca&page=byoa/prem&xAPID=1994&DI=1034&SU=http://hotmail.com/enca&HL=Market_MSNIS_...

...t 12:20 PM, Brian Willoughby <brianw at audiobanshee.com> wrote: > Hmm, I don't know the history of the code, but flac 1.2.1 stream_encoder.c has > > min_qlp_coeff_precision = FLAC__MIN_QLP_COEFF_PRECISION; > /* try to ensure a 32-bit datapath throughout for 16bps(+1bps for side channel) or less */ > if(subframe_bps <= 17) { > max_qlp_coeff_precision = min(32 - subframe_bps - lpc_order, FLAC__MAX_QLP_COEFF_PRECISION); > max_qlp_coeff_precision = max(max_qlp_coeff_precision, min_qlp_coeff_precision); > } &g...

...t argc, char *argv[]) @@ -73,14 +75,18 @@ int main(int argc, char *argv[]) memcmp(buffer+8, "WAVEfmt \020\000\000\000\001\000\002\000", 16) || memcmp(buffer+32, "\004\000\020\000data", 8) ) { +#if BPS == 16 fprintf(stderr, "ERROR: invalid/unsupported WAVE file, only 16bps stereo WAVE in canonical form allowed\n"); fclose(fin); return 1; +#elif BPS == 24 + /* TODO: check wav header for 24bps */ +#endif } sample_rate = ((((((unsigned)buffer[27] << 8) | buffer[26]) << 8) | buffer[25]) << 8) | buffer[24]; - channels = 2; - bps = 16; - tota...

...m passing this on to the list to get some feedback... Mike is getting sped-up playback with the winamp2 plugin (0.10) and for the life of me I can't reproduce it. I've tried winamp 2.07 and 2.76 (I think the latest one). Is anyone else having the same problem? BTW Mike, are these 44.1kHz/16bps files? What version of Winamp are you using? Josh __________________________________________________ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail http://personal.mail.yahoo.com/

...n Tue, Nov 13, 2001 at 02:38:32AM +0000, Adam M. Costello wrote: > > > Matt Zimmerman <mdz@debian.org> wrote: > > > > > Based on a few quick tests, this kind of problem seems to occur > with > > > any file smaller than 4k (at least when using > 44100Hz/16bps/2chan). > > > > I don't think the problem is related to file size. The exact same > > thing happens when I use a file over 700 MB. That's actually where > I > > discovered the problem, then I tried a small file to see if the > behavior > > was consiste...

Hi all, I'm attempting to encode raw audio data using libFLAC++. My audio data is 16 bit, mono, 16000Hz. I set all the appropriate parameters on the encoder and then call init(). Everything appears to be ok. I don't know how to properly convert from char *data to the FLAC__int32 *[] requested by the process function. I think this is where my problem is. If I call process() like this:

Martijn van Beurden wrote: > Yes, but that MAX value is used to loop over the > qlp_coeff_precision values between MIN and MAX. So, if the > qlp_coeff_precision value is limited in the loop but MAX is not > limited, the loop does the exact same thing multiple times: a > waste of time. Therefore, only the MAX should be limited. > > I don't think the logic is needed

...I am new in this community. Recently I build a new streaming station. This stream in AAC. I want to subscribe this in the icecast stream directory. How can I do this? please can anybody help me? Stream information: url: http://bd.rubel.googlepages.com/gCast_live.m3u Stream Genre: Talk Bitrate: 16bps Thanks, Salahuddin Ahmed -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/icecast/attachments/20080714/f77044c2/attachment.htm

...I am new in this community. Recently I build a new streaming station. This stream in AAC. I want to subscribe this in the icecast stream directory. How can I do this? please can anybody help me? Stream information: url: http://bd.rubel.googlepages.com/gCast_live.m3u Stream Genre: Talk Bitrate: 16bps Thanks, Salahuddin -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/icecast/attachments/20080717/ab5d46d0/attachment.htm

...gv[]) @@ -71,13 +71,15 @@ memcmp(buffer+8, "WAVEfmt \020\000\000\000\001\000\002\000", 16) || memcmp(buffer+32, "\004\000\020\000data", 8) ) { + /* Ignoring for now as I work towards supporting 24bps files. fprintf(stderr, "ERROR: invalid/unsupported WAVE file, only 16bps stereo WAVE in canonical form allowed\n"); fclose(fin); return 1; + */ } sample_rate = ((((((unsigned)buffer[27] << 8) | buffer[26]) << 8) | buffer[25]) << 8) | buffer[24]; - channels = 2; - bps = 16; + channels = ((unsigned)buffer[23] << 8) | buffer[22]; + bps...

...t; memcmp(buffer, "RIFF", 4) || > memcmp(buffer+8, "WAVEfmt \020\000\000\000\001\000\002\000", 16) || > memcmp(buffer+32, "\004\000\020\000data", 8) > ) { > fprintf(stderr, "ERROR: invalid/unsupported WAVE file, only 16bps > stereo WAVE in canonical form allowed\n"); > fclose(fin); > return 1; > } > sample_rate = ((((((unsigned)buffer[27] << 8) | buffer[26]) << 8) | > buffer[25]) << 8) | buffer[24]; > printf("sampleRate:%d\n", sample_ra...

...artition_order); + min_partition_order = flac_min(min_partition_order, max_partition_order); /* * Setup the frame @@ -3332,8 +3323,8 @@ FLAC__bool process_subframe_( min_qlp_coeff_precision = FLAC__MIN_QLP_COEFF_PRECISION; /* try to ensure a 32-bit datapath throughout for 16bps(+1bps for side channel) or less */ if(subframe_bps <= 17) { - max_qlp_coeff_precision = min(32 - subframe_bps - lpc_order, FLAC__MAX_QLP_COEFF_PRECISION); - max_qlp_coeff_precision = max(max_qlp_coeff_precision, min_qlp_coeff_precision); + max_qlp_coeff_preci...

...r 32bppCMYK and 64bppCMYK formats to TIFF decoder. windowscodecs: Add support for 3bps RGB format to TIFF decoder. windowscodecs: Add support for 12bps RGB format to TIFF decoder. windowscodecs: Add support for 4bps RGBA format to TIFF decoder. windowscodecs: Add support for 16bps RGBA format to TIFF decoder. windowscodecs: Add support for 96bppRGBFloat and 128bppPRGBAFloat formats to TIFF decoder. windowscodecs/tests: Add some tests for various TIFF color formats. windowscodecs/tests: Add a separate test for 4bps BGRA TIFF format. Fran?ois Gouget (14):...