Thanks for explaining and sorry to bring you new questions, hope this is the last for this topic:

On http://fisheye.freeswitch.org/changelog/freeswitch.git?cs=bdd391e5db830e97eb06a7cea5b1059204e5fcac between lines 697-700 I tried to mux the channels but volume is very very low, or I didn't do right. Any highlights?

Line 703 has good sound but only has one channel.


Question 2:

fav should now support any rate 8000/16000 etc, but the ptime around line 571 is still hard coded. Is it possible to get this from the file handle? 

h.audio_ptime = 20; /* FIXME: hard coded */

Thanks.

On Saturday, September 1, 2012 at 1:28 AM, Anthony Minessale wrote:

when you have multiple channels it still only uses the len of one
channel assuming you will multiply that len by the * of channels for
the real size.


On Thu, Aug 30, 2012 at 10:15 PM, Seven Du <dujinfang@gmail.com> wrote:
ok, I figured out when use conference record, handle->channels = 1, but in
uuid_record, handle->channels = 2, so the following code did the trick in
fsv_file_write, but I'm not sure if it's the write approach. Why the *len is
always 160 in both cases? where the other half channel data goes to? I use
play_fsv so the playback should be right. Only tested on 8000HZ right now.
If the following code is confusing I can submit a full patch. Thanks.



uint16_t *x = data;


if (handle->channels == 2) {
/* should we use only one channel ? */
for (int i=0; i<160; i++) {
x[i] = x[i*2];
}
}


--
Seven Du
Sent with Sparrow

On Friday, August 31, 2012 at 8:34 AM, Anthony Minessale wrote:

Right now it always does raw l16 in any of the io or file funcs

On Aug 30, 2012 7:23 PM, "dujinfang" <dujinfang@gmail.com> wrote:

yes, my problem is how to make sure switch_file
_write always get L16 data when trigger by uuid_record?

thanks

发自我的 iPhone

在 2012-8-31，上午4:36，Anthony Minessale <anthony.minessale@gmail.com> 写道：

yes, currently the fsv format expects L16 audio

On Thu, Aug 30, 2012 at 4:00 AM, Seven Du <dujinfang@gmail.com> wrote:
Hi,

If you noticed the video-media-bug branch, I managed to record a video
file
with the following methods

conference 3000 record /tmp/testrecord.fsv

uuid_record <uuid> start /tmp/testrecord.fsv


The first command works perfect as conference voice is L16, but the last
one
has bad audio I guess because it's PCMU ?.

I noticed a SWITCH_FILE_NATIVE flags which is supposed to disable
transcoding but in my case in mod_fsv the flag is not set so should it
transcode to L16 before writing to the fsv file?

Thanks.

--
Seven Du
Sent with Sparrow


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Anthony Minessale II

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