[Libav-user] How to open dshow audio input device and work with it

[Roger Pack]

http://ffmpeg.zeranoe.com/forum/viewtopic.php?f=15&t=274 may be useful

On 1/8/15, gakwaya daniel <wayadn-at-yahoo.fr at ffmpeg.org> wrote:
> Hi ,I want to open audio and Screen grab devices in my application ( will
> encode and mux them into an output video) like this
>
>  AVInputFormat *ifmt=av_find_input_format("gdigrab");
> if(avformat_open_input(&pFormatCtx,"desktop",ifmt,&options)!=0){
> printf("Couldn't open input stream.\n");        return -1;    }
>    //INPUT TO CAPTURE AUDIO    AVInputFormat
> *ifmtAudio=av_find_input_format("dshow");
>     if(avformat_open_input(&pFormatCtxAudio,"audio=MicroPhone (Realtek Hight
> Defini",ifmtAudio,NULL)!=0){        printf("Couldn't open input audio
> stream.\n");        return -1;    }
>  but the audio is failing to open .Is this even the right way to open them
> if I plan to mux encoded streams later .This question is part of a program
> here:     libavcodec : how to encode with h264 codec ,with mp4 container
> using controllable frame rate and bitrate(through c code)
>
> |   |
> |   |  |   |   |   |   |   |
> | libavcodec : how to encode with h264 codec ,with mp4 con...I am trying to
> record the screen of a pc and encode the recorded frames using h264 encoder
> and wrap them into a mp4 container.I want to do this because... |
> |  |
> | Afficher sur stackoverflow.com | Aperçu par Yahoo |
> |  |
> |   |
>
>   I am working on .I am new to libav* and any assistance will be
> appreciated.Thanks.
>
>