diff options
Diffstat (limited to 'recordmydesktop/src/opendev.c')
| -rw-r--r-- | recordmydesktop/src/opendev.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/recordmydesktop/src/opendev.c b/recordmydesktop/src/opendev.c index 5fc24f7..7810ec6 100644 --- a/recordmydesktop/src/opendev.c +++ b/recordmydesktop/src/opendev.c @@ -29,6 +29,7 @@ #include <recordmydesktop.h> +#ifdef HAVE_LIBASOUND snd_pcm_t *OpenDev( const char *pcm_dev, unsigned int *channels, @@ -114,4 +115,50 @@ snd_pcm_t *OpenDev( const char *pcm_dev, return mhandle; } +#else +int OpenDev( const char *pcm_dev, + unsigned int channels, + unsigned int frequency){ + int fd ; + fd=open(pcm_dev,O_RDONLY); + + if(fd!=-1){ + unsigned int value; + + if(ioctl(fd,SNDCTL_DSP_GETFMTS,&value)<0){ + fprintf(stderr,"Couldn't get audio format list\n"); + return -1; + } + if(value & AFMT_S16_LE){ + value=AFMT_S16_LE; + } + else if(value & AFMT_S16_BE){ + value=AFMT_S16_BE; + } + else{ + fprintf(stderr,"Soundcard doesn't support signed 16-bit-data\n"); + return -1; + } + if(ioctl(fd,SNDCTL_DSP_SETFMT,&value)<0){ + fprintf(stderr,"Couldn't set audio format\n" ); + return -1; + } + value = channels; + if(ioctl(fd,SNDCTL_DSP_CHANNELS,&value)<0){ + fprintf(stderr,"Cannot set the number of channels\n" ); + return -1; + } + value = frequency; + if(ioctl(fd,SNDCTL_DSP_SPEED,&value)<0){ + fprintf(stderr,"Couldn't set audio frequency\n" ); + return -1; + } + if(fcntl(fd,F_SETFL,fcntl(fd,F_GETFL) & ~O_NONBLOCK)<0){ + fprintf(stderr,"Couldn't set audio blocking mode\n" ); + return -1; + } + } + return fd; +} +#endif |