diff options
Diffstat (limited to 'src/oss-util.c')
| -rw-r--r-- | src/oss-util.c | 163 |
1 files changed, 0 insertions, 163 deletions
diff --git a/src/oss-util.c b/src/oss-util.c deleted file mode 100644 index cf55a6ee..00000000 --- a/src/oss-util.c +++ /dev/null @@ -1,163 +0,0 @@ -/* $Id$ */ - -/*** - This file is part of polypaudio. - - polypaudio 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. - - polypaudio 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 polypaudio; if not, write to the Free Software - Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 - USA. -***/ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif - -#include <assert.h> -#include <sys/soundcard.h> -#include <sys/ioctl.h> -#include <stdio.h> -#include <errno.h> -#include <string.h> -#include <unistd.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <fcntl.h> - -#include "oss-util.h" - -int pa_oss_open(const char *device, int *mode, int* pcaps) { - int fd = -1; - assert(device && mode && (*mode == O_RDWR || *mode == O_RDONLY || *mode == O_WRONLY)); - - if (*mode == O_RDWR) { - if ((fd = open(device, O_RDWR|O_NDELAY)) >= 0) { - int dcaps, *tcaps; - ioctl(fd, SNDCTL_DSP_SETDUPLEX, 0); - - tcaps = pcaps ? pcaps : &dcaps; - - if (ioctl(fd, SNDCTL_DSP_GETCAPS, tcaps) < 0) { - fprintf(stderr, __FILE__": SNDCTL_DSP_GETCAPS: %s\n", strerror(errno)); - goto fail; - } - - if (*tcaps & DSP_CAP_DUPLEX) - return fd; - - close(fd); - } - - if ((fd = open(device, (*mode = O_WRONLY)|O_NDELAY)) < 0) { - if ((fd = open(device, (*mode = O_RDONLY)|O_NDELAY)) < 0) { - fprintf(stderr, __FILE__": open('%s'): %s\n", device, strerror(errno)); - goto fail; - } - } - } else { - if ((fd = open(device, *mode|O_NDELAY)) < 0) { - fprintf(stderr, __FILE__": open('%s'): %s\n", device, strerror(errno)); - goto fail; - } - } - - if (pcaps) { - if (ioctl(fd, SNDCTL_DSP_GETCAPS, pcaps) < 0) { - fprintf(stderr, "SNDCTL_DSP_GETCAPS: %s\n", strerror(errno)); - goto fail; - } - } - - return fd; - -fail: - if (fd >= 0) - close(fd); - return fd; -} - -int pa_oss_auto_format(int fd, struct pa_sample_spec *ss) { - int format, channels, speed, reqformat; - static const int format_trans[] = { - [PA_SAMPLE_U8] = AFMT_U8, - [PA_SAMPLE_ALAW] = AFMT_A_LAW, - [PA_SAMPLE_ULAW] = AFMT_MU_LAW, - [PA_SAMPLE_S16LE] = AFMT_S16_LE, - [PA_SAMPLE_S16BE] = AFMT_S16_BE, - [PA_SAMPLE_FLOAT32LE] = AFMT_QUERY, /* not supported */ - [PA_SAMPLE_FLOAT32BE] = AFMT_QUERY, /* not supported */ - }; - - assert(fd >= 0 && ss); - - reqformat = format = format_trans[ss->format]; - if (reqformat == AFMT_QUERY || ioctl(fd, SNDCTL_DSP_SETFMT, &format) < 0 || format != reqformat) { - format = AFMT_S16_NE; - if (ioctl(fd, SNDCTL_DSP_SETFMT, &format) < 0 || format != AFMT_S16_NE) { - int f = AFMT_S16_NE == AFMT_S16_LE ? AFMT_S16_BE : AFMT_S16_LE; - format = f; - if (ioctl(fd, SNDCTL_DSP_SETFMT, &format) < 0 || format != f) { - format = AFMT_U8; - if (ioctl(fd, SNDCTL_DSP_SETFMT, &format) < 0 || format != AFMT_U8) { - fprintf(stderr, "SNDCTL_DSP_SETFMT: %s\n", format != AFMT_U8 ? "No supported sample format" : strerror(errno)); - return -1; - } else - ss->format = PA_SAMPLE_U8; - } else - ss->format = f == AFMT_S16_LE ? PA_SAMPLE_S16LE : PA_SAMPLE_S16BE; - } else - ss->format = PA_SAMPLE_S16NE; - } - - channels = ss->channels; - if (ioctl(fd, SNDCTL_DSP_CHANNELS, &channels) < 0) { - fprintf(stderr, "SNDCTL_DSP_CHANNELS: %s\n", strerror(errno)); - return -1; - } - assert(channels); - ss->channels = channels; - - speed = ss->rate; - if (ioctl(fd, SNDCTL_DSP_SPEED, &speed) < 0) { - fprintf(stderr, "SNDCTL_DSP_SPEED: %s\n", strerror(errno)); - return -1; - } - assert(speed); - ss->rate = speed; - - return 0; -} - -static int log2(int v) { - int k = 0; - - for (;;) { - v >>= 1; - if (!v) break; - k++; - } - - return k; -} - -int pa_oss_set_fragments(int fd, int nfrags, int frag_size) { - int arg; - arg = ((int) nfrags << 16) | log2(frag_size); - - if (ioctl(fd, SNDCTL_DSP_SETFRAGMENT, &arg) < 0) { - fprintf(stderr, "SNDCTL_DSP_SETFRAGMENT: %s\n", strerror(errno)); - return -1; - } - - return 0; -} |