diff options
Diffstat (limited to 'recordmydesktop/src/rmd_opendev.c')
-rw-r--r-- | recordmydesktop/src/rmd_opendev.c | 189 |
1 files changed, 0 insertions, 189 deletions
diff --git a/recordmydesktop/src/rmd_opendev.c b/recordmydesktop/src/rmd_opendev.c deleted file mode 100644 index 37fb33c..0000000 --- a/recordmydesktop/src/rmd_opendev.c +++ /dev/null @@ -1,189 +0,0 @@ -/****************************************************************************** -* recordMyDesktop * -******************************************************************************* -* * -* Copyright (C) 2006,2007,2008 John Varouhakis * -* * -* * -* This program is free software; you can redistribute it and/or modify * -* it under the terms of the GNU General Public License as published by * -* the Free Software Foundation; either version 2 of the License, or * -* (at your option) any later version. * -* * -* This program is distributed in the hope that it will be useful, * -* but WITHOUT ANY WARRANTY; without even the implied warranty of * -* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * -* GNU General Public License for more details. * -* * -* You should have received a copy of the GNU General Public License * -* along with this program; if not, write to the Free Software * -* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * -* * -* * -* * -* For further information contact me at johnvarouhakis@gmail.com * -******************************************************************************/ - -#include "config.h" -#include "rmd_opendev.h" - -#ifdef HAVE_LIBASOUND - #include <alsa/asoundlib.h> -#else - #include <sys/ioctl.h> - #include <sys/soundcard.h> -#endif - -#include <stdlib.h> -#include <stdio.h> -#include <unistd.h> -#include <fcntl.h> - - -#ifdef HAVE_LIBASOUND - -snd_pcm_t *rmdOpenDev( const char *pcm_dev, - unsigned int *channels, - unsigned int *frequency, - snd_pcm_uframes_t *buffsize, - snd_pcm_uframes_t *periodsize, - unsigned int *periodtime, - int *hard_pause) { - - snd_pcm_t *mhandle; - snd_pcm_hw_params_t *hwparams; - unsigned int periods = 2; - unsigned int exactrate = *frequency; - - // The compiler might warn us because the expansion starts with - // assert(&hwparams) - snd_pcm_hw_params_alloca(&hwparams); - - if (snd_pcm_open(&mhandle, pcm_dev, SND_PCM_STREAM_CAPTURE, SND_PCM_ASYNC) < 0) { - fprintf(stderr, "Couldn't open PCM device %s\n", pcm_dev); - return NULL; - } else - fprintf(stderr, "Opened PCM device %s\n", pcm_dev); - - if (snd_pcm_hw_params_any(mhandle, hwparams) < 0) { - fprintf(stderr, "Couldn't configure PCM device.\n"); - return NULL; - } - - if (snd_pcm_hw_params_set_access(mhandle, hwparams, SND_PCM_ACCESS_RW_INTERLEAVED) < 0) { - fprintf(stderr, "Couldn't set access.\n"); - return NULL; - } - - if (snd_pcm_hw_params_set_format(mhandle, hwparams, SND_PCM_FORMAT_S16_LE) < 0) { - fprintf(stderr, "Couldn't set format.\n"); - return NULL; - } - - if (snd_pcm_hw_params_set_rate_near(mhandle, hwparams, &exactrate, 0) < 0) { - fprintf(stderr, "Couldn't set frequency.\n"); - return NULL; - } - - if (*frequency != exactrate) { - fprintf(stderr, "Playback frequency %dHz is not available...\n" - "Using %dHz instead.\n", - *frequency, exactrate); - - *frequency = exactrate; - } - - if (snd_pcm_hw_params_set_channels_near(mhandle, hwparams, channels) < 0) { - fprintf(stderr, "Couldn't set channels number.\n"); - return NULL; - } - - if (*channels>2) { - fprintf(stderr, "Channels number should be 1(mono) or 2(stereo).\n"); - return NULL; - } - - if (snd_pcm_hw_params_set_periods_near(mhandle, hwparams, &periods, 0) < 0) { - fprintf(stderr, "Couldn't set periods.\n"); - return NULL; - } - - if (snd_pcm_hw_params_set_buffer_size_near(mhandle, hwparams, buffsize) < 0) { - fprintf(stderr, "Couldn't set buffer size.\n"); - return NULL; - } - - if (snd_pcm_hw_params(mhandle, hwparams) < 0) { - fprintf(stderr, "Couldn't set hardware parameters.\n"); - return NULL; - } - - if (hard_pause != NULL) { - if (!snd_pcm_hw_params_can_pause(hwparams)) - *hard_pause = 1; - } - - if (periodsize != NULL) - snd_pcm_hw_params_get_period_size(hwparams, periodsize, 0); - - if (periodtime != NULL) - snd_pcm_hw_params_get_period_time(hwparams, periodtime, 0); - - fprintf(stderr, - "Recording on device %s is set to:\n%d channels at %dHz\n", - pcm_dev, *channels, *frequency); - - snd_pcm_prepare(mhandle); - - return mhandle; -} - -#else - -int rmdOpenDev(const char *pcm_dev, unsigned int channels, unsigned int frequency) { - int fd ; - unsigned int value; - - fd = open(pcm_dev, O_RDONLY); - if (fd < 0) - return -1; - - 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 |