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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