search for: opus_bandwidth_wideband

...bled, would be 3 times as effective. Similarly, two 40ms SILK frames would be more efficient than four 20ms SILK frames. - /* Can't support higher than wideband for >20 ms frames */ - if (frame_size > st->Fs/50 && (st->mode == MODE_CELT_ONLY || st->bandwidth > OPUS_BANDWIDTH_WIDEBAND)) + /* Can't support higher than wideband for >20 ms frames, CELT-only for >20 ms and SILK-only for >60 ms */ + if ((frame_size > st->Fs/50 && (st->mode == MODE_CELT_ONLY || st->bandwidth > OPUS_BANDWIDTH_WIDEBAND)) || + (frame_size > 3*st->Fs/...

...ld merge the explicit check for >> > 120 ms frame and the existing checks for 40/60 ms wideband? >> >> What I mean is that this line in opus_encoder.c: >> >> if (frame_size > st->Fs/50 && (st->mode == MODE_CELT_ONLY || >> st->bandwidth > OPUS_BANDWIDTH_WIDEBAND)) >> >> can probably be extended to also cover 80/100/120 ms. One difference is >> that it would also need to trigger for SILK-only > 60 ms. >> >> Cheers, >> >> Jean-Marc >> > -------------- next part -------------- An HTML attachment wa...

...g and > repacketizing bit. Or do you mean I should merge the explicit check for > 120 ms frame and the existing checks for 40/60 ms wideband? What I mean is that this line in opus_encoder.c: if (frame_size > st->Fs/50 && (st->mode == MODE_CELT_ONLY || st->bandwidth > OPUS_BANDWIDTH_WIDEBAND)) can probably be extended to also cover 80/100/120 ms. One difference is that it would also need to trigger for SILK-only > 60 ms. Cheers, Jean-Marc

Hey, I am having trouble with the size of the encoded bytes by Opus. I am also having issue with the Bandwidth ctl. Here is the scenario. If I encode 16khz sampled audio: opus_encoder_ctl(enc,OPUS_SET_MAX_BANDWIDTH(OPUS_BANDWIDTH_WIDEBAND)) opus_encoder_ctl(enc, OPUS_GET_BANDWIDTH(&x)) = 1102 opus_encoder_ctl(enc, OPUS_GET_MAX_BANDWIDTH(&x)) = 1103 average encoded size = 120 bytes if I encode 48khz sampled audio: opus_encoder_ctl(enc, OPUS_SET_BANDWIDTH(OPUS_BANDWIDTH_WIDEBAND)) opus_encoder_ctl(enc, OPUS_GET_BANDWIDTH...

...so that SILK 120/80 ms encode 2x 60 and > 2x 40 ms respectively. > > >> >> >> - /* Can't support higher than wideband for >20 ms frames */ >> - if (frame_size > st->Fs/50 && (st->mode == MODE_CELT_ONLY || >> st->bandwidth > OPUS_BANDWIDTH_WIDEBAND)) >> + /* Can't support higher than wideband for >20 ms frames, >> CELT-only for >20 ms and SILK-only for >60 ms */ >> + if ((frame_size > st->Fs/50 && (st->mode == MODE_CELT_ONLY || >> st->bandwidth > OPUS_BANDWIDTH_WIDEBAND)) || &g...

...vely. > >> > >> > >>> > >>> > >>> - /* Can't support higher than wideband for >20 ms frames */ > >>> - if (frame_size > st->Fs/50 && (st->mode == MODE_CELT_ONLY || > >>> st->bandwidth > OPUS_BANDWIDTH_WIDEBAND)) > >>> + /* Can't support higher than wideband for >20 ms frames, > >>> CELT-only for >20 ms and SILK-only for >60 ms */ > >>> + if ((frame_size > st->Fs/50 && (st->mode == MODE_CELT_ONLY || > >>> st->bandwidth...

...ua On Wed, Mar 4, 2015 at 5:53 PM, Dragos Oancea <droancea at yahoo.com> wrote: > Hi Kelvin, > > You can use something like : > opus_encoder_ctl(enc,OPUS_SET_BITRATE(bitrate)); > opus_encoder_ctl(enc,OPUS_SET_MAX_BANDWIDTH(bandpass)); > bandpass is the audio bandpass , eg: OPUS_BANDWIDTH_WIDEBAND . > > You will need to calculate the codec bitrate from the available network > bitrate (by taking into account the size of the IP+UDP+RTP headers which is > 40 bytes ) . > By default the audio bandwidth (bandpass) setting is > OPUS_BANDWIDTH_FULLBAND , which will utilize more net...

...makes sense, I've changed it so that SILK 120/80 ms encode 2x 60 and 2x 40 ms respectively. > > > - /* Can't support higher than wideband for >20 ms frames */ > - if (frame_size > st->Fs/50 && (st->mode == MODE_CELT_ONLY || > st->bandwidth > OPUS_BANDWIDTH_WIDEBAND)) > + /* Can't support higher than wideband for >20 ms frames, > CELT-only for >20 ms and SILK-only for >60 ms */ > + if ((frame_size > st->Fs/50 && (st->mode == MODE_CELT_ONLY || > st->bandwidth > OPUS_BANDWIDTH_WIDEBAND)) || > + (fra...

...x 60 and >> 2x 40 ms respectively. >> >> >>> >>> >>> - /* Can't support higher than wideband for >20 ms frames */ >>> - if (frame_size > st->Fs/50 && (st->mode == MODE_CELT_ONLY || >>> st->bandwidth > OPUS_BANDWIDTH_WIDEBAND)) >>> + /* Can't support higher than wideband for >20 ms frames, >>> CELT-only for >20 ms and SILK-only for >60 ms */ >>> + if ((frame_size > st->Fs/50 && (st->mode == MODE_CELT_ONLY || >>> st->bandwidth > OPUS_BANDWIDTH_...

Hello all, after FOMS I decided to take a look at the opus library and I found that I could improve a bit the build system and cleanup the code a little bit. Most of the changes to the code has been suggested by my two tools cowstats and missingstatic (part of the ruby-elf gem if you care). HTH, Diego

I am using libopus for my implementation. I wonder if anybody in the list have any experience on how to make libopus dynamically adjust its bitrate? On Mar 3, 2015 10:42 PM, "Benjamin Schwartz" <benjamin.m.schwartz at gmail.com> wrote: > It sounds like your software isn't adjusting the opus bitrate in response > to network conditions. For example, many WebRTC

...gle.com/p/webrtc/issues/detail?id=3093Freeswitch is using complexity 10 .What is the impact of this setting on the decoder, when for example a device is encoding with complexity level 0 , but it's receiving a stream encoded with level 10 ??? We plan to use Opus with OPUS_BANDWIDTH_NARROWBAND or OPUS_BANDWIDTH_WIDEBAND . Thank you. Regards,Dragos Oancea -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/opus/attachments/20141117/ff79a11b/attachment.htm

Hi Kelvin, You can use something like :opus_encoder_ctl(enc,OPUS_SET_BITRATE(bitrate));opus_encoder_ctl(enc,OPUS_SET_MAX_BANDWIDTH(bandpass)); bandpass is the audio bandpass?, eg: OPUS_BANDWIDTH_WIDEBAND . You will need to calculate the codec bitrate from the available network bitrate (by taking into account the size of the IP+UDP+RTP headers which is 40 bytes ) . By default the audio bandwidth (bandpass) setting is OPUS_BANDWIDTH_FULLBAND , which will utilize more network bandwidth . Regards,Drag...

...t. Or do you mean I should merge the explicit check for > > 120 ms frame and the existing checks for 40/60 ms wideband? > > What I mean is that this line in opus_encoder.c: > > if (frame_size > st->Fs/50 && (st->mode == MODE_CELT_ONLY || > st->bandwidth > OPUS_BANDWIDTH_WIDEBAND)) > > can probably be extended to also cover 80/100/120 ms. One difference is > that it would also need to trigger for SILK-only > 60 ms. > > Cheers, > > Jean-Marc > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.x...

...gt; check for > > 120 ms frame and the existing checks for 40/60 ms wideband? > > What I mean is that this line in opus_encoder.c: > > if (frame_size > st->Fs/50 && (st->mode == MODE_CELT_ONLY || > st->bandwidth > OPUS_BANDWIDTH_WIDEBAND)) > > can probably be extended to also cover 80/100/120 ms. One > difference is > that it would also need to trigger for SILK-only > 60 ms. > > Cheers, > > Jean-Marc >

Hi Felicia, I still don't quite understand why you need to make 120 ms a special case, rather than extend the code that already handles 40 ms and 60 ms. Cheers, Jean-Marc On 06/01/2016 12:58 PM, Felicia Lim wrote: > Hi all, > > I've just realized that there's a better and simpler way of doing this > which ensures that analysis and selection of the mode/bandwidth etc

...ng and > repacketizing bit. Or do you mean I should merge the explicit check for > 120 ms frame and the existing checks for 40/60 ms wideband? What I mean is that this line in opus_encoder.c: if (frame_size > st->Fs/50 && (st->mode == MODE_CELT_ONLY || st->bandwidth > OPUS_BANDWIDTH_WIDEBAND)) can probably be extended to also cover 80/100/120 ms. One difference is that it would also need to trigger for SILK-only > 60 ms. Cheers, Jean-Marc -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.xiph.org/pipermail/opus/attachments/2...

...the list tried this? Kelvin Chua On Wed, Mar 4, 2015 at 5:53 PM, Dragos Oancea <droancea at yahoo.com> wrote: Hi Kelvin, You can use something like :opus_encoder_ctl(enc,OPUS_SET_BITRATE(bitrate));opus_encoder_ctl(enc,OPUS_SET_MAX_BANDWIDTH(bandpass)); bandpass is the audio bandpass?, eg: OPUS_BANDWIDTH_WIDEBAND . You will need to calculate the codec bitrate from the available network bitrate (by taking into account the size of the IP+UDP+RTP headers which is 40 bytes ) . By default the audio bandwidth (bandpass) setting is OPUS_BANDWIDTH_FULLBAND , which will utilize more network bandwidth . Regards,Drag...