[asterisk-dev] MIXMONITOR - periodic beep is not present in RECORDING
bala murugan
fightwithme at gmail.com
Wed Jan 12 12:00:31 CST 2022
Thanks jonathan ,
I am ok in modifying the source and trying . I looked at the source
audiohook.c:audio_audiohook_write_list() and i did see the below order
1)AST_LIST_TRAVERSE_SAFE_BEGIN(&audiohook_list->spy_list, audiohook, list) {
*2) if* (!AST_LIST_EMPTY(&audiohook_list->whisper_list)) {
*3) if* (!AST_LIST_EMPTY(&audiohook_list->manipulate_list)) {
Are you saying moving this around as below will help or what is the
recommended move to try ?
1) *if* (!AST_LIST_EMPTY(&audiohook_list->manipulate_list)) {
2)*if* (!AST_LIST_EMPTY(&audiohook_list->whisper_list)) {
3)AST_LIST_TRAVERSE_SAFE_BEGIN(&audiohook_list->spy_list, audiohook, list) {
Also you have mentioned unexpected consequences from moving these around ,
any idea what it would be? , will it mess the recording ?
affect the call quality ? If you know the specific then it will help to see
will it be worth trying .
Also is there an existing patch available for the changes you mentioned?
On Wed, Jan 12, 2022 at 12:36 PM Jonathan Rose <
jonathan.rose at motorolasolutions.com> wrote:
> On Wed, Jan 12, 2022 at 10:41 AM bala murugan <fightwithme at gmail.com>
> wrote:
>
>> Hi ,
>>
>> I am trying to use the MIXMONITOR Option B( interval ) - Play a
>> periodic beep while this call is being recorded .
>>
>> I can see the Beep tone is played , but the same Beep is not present
>> in the RECORDING .
>>
>> Any ideas ? Any Suggestions?
>>
>> Is this a known issue?
>>
>> Thanks,
>> Bala
>>
>
> The reason these don't get recorded is because they are both on
> audiobooks and the audiohook processing order is dictated by the type of
> hook. MixMonitor itself is a SPY hook. These hooks get processed first. The
> beeps are created by a MANIPULATE hook. These hooks get processed last.
> Since MixMonitor is processed first, it's going to record the audio before
> any manipulation is done. This means you won't capture the effects of any
> audiohook manipulation.
>
> You can reverse the order of processing by patching audiohook.c. See the
> audiohook.c:audio_audiohook_write_list() -- you can change the processing
> order fairly trivially just by moving the AST_LIST_TRAVERSE_SAFE_BEGIN/END
> blocks concerning the spy_list, whisper_list, and manipulate_list. I've got
> to warn you though, there may be some unexpected consequences from moving
> these around.
>
> If what you want is a solution that doesn't involve modifying the source
> though, you are probably going to have to do something annoying like have a
> channel in your bridge to create the beeps that you add and remove based on
> whether or not MixMonitor is running. Real messy stuff.
>
> --
>
> *Jonathan R. Rose*Senior Systems Engineer
> Emergency Call Handling
> Motorola Solutions
>
> email: jonathan.rose at motorolasolutions.com
>
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