@Bill, I understand that. But, do you think that the render will only work if the capture is working correctly? I'm capturing and sending to the network but I'm not converting from IEEE Floating Point to PCM16 bits (the sound is not playing well on the destination). Thanks On 26 March 2014 17:22, Bill Gardner <billg at wavearts.com> wrote: > You could run one WASAPI thread and service both playback and capture > events using WaitForMultipleObjects. You should implement audio capture for > the obvious reason to make the microphone work, plus not providing pjsip > with capture buffers will cause lots of underflow messages. > > Bill > > > On 3/26/2014 12:48 PM, Nuno Centeio wrote: > > *@Bill,* > > But the record is not made in the thread that gets the frame (my WASAPI > thread), right? Or do I need to implement my capture engine in order for > the render buffer to be correct? > > *@Abdelrahman*, > > I think that the only problem will be the WinSocks. However, I'm not > targeting for ARM devices, where WinSocks does not exist. In x86 and x64 > processors there is WinSocks. But, however, I'm already prepared to be > rejected a lot of times :( > > > On 26 March 2014 16:40, Abdelrahman Salah <abdelrahman.salah.cs at gmail.com>wrote: > >> Dear nuno, >> >> This is a side hint, please bay attention to the dependencies required, >> because most of the dependencies required are not allowed in windows store >> and more than likely it will fail the certificate test. >> So take that into consideration before spending time and effort. >> >> Abdelrahman Salah >> Sent From My Note II >> On 26 Mar 2014 18:25, "Nuno Centeio" <nuno.r.centeio at gmail.com> wrote: >> >>> Hi guys, >>> >>> I'm trying to implement the Windows Audio Session API (WASAPI) in >>> order to make PJSip compliant with Windows Store apps. >>> >>> I think that I'm almost done but I can get the sound correctly (it's >>> just that!). >>> >>> Here is what I have: >>> >>> (pb_client is a IAudioRenderClient) >>> hr = strm->pb_client->GetBuffer(frame_to_render, &cur_pb_buf); >>> >>> pjmedia_frame frame; >>> void* destBuffer = >>> (void*)malloc(strm->bytes_per_frame*frame_to_render*sizeof(pj_uint16_t)); >>> /* PCM mode */ >>> frame.type = PJMEDIA_FRAME_TYPE_AUDIO; >>> frame.size = strm->bytes_per_frame; >>> frame.timestamp.u64 = strm->pb_timestamp.u64; >>> frame.bit_info = 0; >>> frame.buf = destBuffer; >>> >>> status = (*strm->pb_cb)(strm->user_data, &frame); >>> >>> /* Because PJSip will give me PCM 16 bits, 2 channels and WASAPI needs >>> IEEE Floating point 32-bits, 2 channels >>> */ >>> CAudioConverter* conv = new CAudioConverter(); >>> conv->ConvI16ToF32((BYTE*)destBuffer, cur_pb_buf, frame_to_render); >>> >>> /* Write to the device. */ >>> hr = strm->pb_client->ReleaseBuffer(frame_to_render, 0); >>> >>> While running I have the following prints: >>> 3/26/2014 4:00:01 PM V SIP - Underflow, buf_cnt=0, will >>> generate 1 frame >>> 3/26/2014 4:00:01 PM V SIP - Underflow, buf_cnt=0, will >>> generate 1 frame >>> 3/26/2014 4:00:01 PM V SIP - 698 samples reduced, buf_cnt=6092 >>> 3/26/2014 4:00:01 PM V SIP - Buffer size adjusted from 6790 to >>> 6092 (eff_cnt=5760) >>> 3/26/2014 4:00:01 PM V SIP - Underflow, buf_cnt=0, will >>> generate 1 frame >>> 3/26/2014 4:00:02 PM V SIP - 320 samples reduced, buf_cnt=6412 >>> 3/26/2014 4:00:02 PM V SIP - Buffer size adjusted from 6732 to >>> 6412 (eff_cnt=5760) >>> >>> Any hints on what I might be doing wrong? >>> >>> Thanks >>> >>> _______________________________________________ >>> Visit our blog: http://blog.pjsip.org >>> >>> pjsip mailing list >>> pjsip at lists.pjsip.org >>> http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org >>> >>> >> _______________________________________________ >> Visit our blog: http://blog.pjsip.org >> >> pjsip mailing list >> pjsip at lists.pjsip.org >> http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org >> >> > > > _______________________________________________ > Visit our blog: http://blog.pjsip.org > > pjsip mailing listpjsip at lists.pjsip.orghttp://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org > > > > _______________________________________________ > Visit our blog: http://blog.pjsip.org > > pjsip mailing list > pjsip at lists.pjsip.org > http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20140326/d1d8eaab/attachment-0001.html>
