diff options
Diffstat (limited to 'stream/ai_oss.c')
| -rw-r--r-- | stream/ai_oss.c | 153 |
1 files changed, 0 insertions, 153 deletions
diff --git a/stream/ai_oss.c b/stream/ai_oss.c deleted file mode 100644 index bc22691be5..0000000000 --- a/stream/ai_oss.c +++ /dev/null @@ -1,153 +0,0 @@ -/* - * This file is part of mpv. - * - * mpv 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. - * - * mpv 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 mpv. If not, see <http://www.gnu.org/licenses/>. - */ - -#include <stdio.h> -#include <stdlib.h> - -#include "config.h" - -#include <string.h> -#include <fcntl.h> -#include <errno.h> -#include <sys/ioctl.h> - -#include <sys/soundcard.h> - -#include "osdep/io.h" - -#include "audio_in.h" -#include "common/common.h" -#include "common/msg.h" - -int ai_oss_set_samplerate(audio_in_t *ai) -{ - int tmp = ai->req_samplerate; - if (ioctl(ai->oss.audio_fd, SNDCTL_DSP_SPEED, &tmp) == -1) return -1; - ai->samplerate = tmp; - return 0; -} - -int ai_oss_set_channels(audio_in_t *ai) -{ - int err; - int ioctl_param; - - if (ai->req_channels > 2) - { - ioctl_param = ai->req_channels; - MP_VERBOSE(ai, "ioctl dsp channels: %d\n", - err = ioctl(ai->oss.audio_fd, SNDCTL_DSP_CHANNELS, &ioctl_param)); - if (err < 0) { - MP_ERR(ai, "Unable to set channel count: %d\n", - ai->req_channels); - return -1; - } - ai->channels = ioctl_param; - } - else - { - ioctl_param = (ai->req_channels == 2); - MP_VERBOSE(ai, "ioctl dsp stereo: %d (req: %d)\n", - err = ioctl(ai->oss.audio_fd, SNDCTL_DSP_STEREO, &ioctl_param), - ioctl_param); - if (err < 0) { - MP_ERR(ai, "Unable to set stereo: %d\n", - ai->req_channels == 2); - return -1; - } - ai->channels = ioctl_param ? 2 : 1; - } - return 0; -} - -int ai_oss_init(audio_in_t *ai) -{ - int err; - int ioctl_param; - - const char *device = ai->oss.device; - if (!device) - device = "/dev/dsp"; - - ai->oss.audio_fd = open(device, O_RDONLY | O_CLOEXEC); - if (ai->oss.audio_fd < 0) - { - MP_ERR(ai, "Unable to open '%s': %s\n", device, mp_strerror(errno)); - return -1; - } - - ioctl_param = 0 ; - MP_VERBOSE(ai, "ioctl dsp getfmt: %d\n", - ioctl(ai->oss.audio_fd, SNDCTL_DSP_GETFMTS, &ioctl_param)); - - MP_VERBOSE(ai, "Supported formats: %x\n", ioctl_param); - if (!(ioctl_param & AFMT_S16_NE)) - MP_ERR(ai, "unsupported format\n"); - - ioctl_param = AFMT_S16_NE; - MP_VERBOSE(ai, "ioctl dsp setfmt: %d\n", - err = ioctl(ai->oss.audio_fd, SNDCTL_DSP_SETFMT, &ioctl_param)); - if (err < 0) { - MP_ERR(ai, "Unable to set audio format."); - return -1; - } - - if (ai_oss_set_channels(ai) < 0) return -1; - - ioctl_param = ai->req_samplerate; - MP_VERBOSE(ai, "ioctl dsp speed: %d\n", - err = ioctl(ai->oss.audio_fd, SNDCTL_DSP_SPEED, &ioctl_param)); - if (err < 0) { - MP_ERR(ai, "Unable to set samplerate: %d\n", - ai->req_samplerate); - return -1; - } - ai->samplerate = ioctl_param; - - MP_VERBOSE(ai, "ioctl dsp trigger: %d\n", - ioctl(ai->oss.audio_fd, SNDCTL_DSP_GETTRIGGER, &ioctl_param)); - MP_VERBOSE(ai, "trigger: %x\n", ioctl_param); - ioctl_param = PCM_ENABLE_INPUT; - MP_VERBOSE(ai, "ioctl dsp trigger: %d\n", - err = ioctl(ai->oss.audio_fd, SNDCTL_DSP_SETTRIGGER, &ioctl_param)); - if (err < 0) { - MP_ERR(ai, "Unable to set trigger: %d\n", - PCM_ENABLE_INPUT); - } - - ai->blocksize = 0; - MP_VERBOSE(ai, "ioctl dsp getblocksize: %d\n", - err = ioctl(ai->oss.audio_fd, SNDCTL_DSP_GETBLKSIZE, &ai->blocksize)); - if (err < 0) { - MP_ERR(ai, "Unable to get block size!\n"); - } - MP_VERBOSE(ai, "blocksize: %d\n", ai->blocksize); - - // correct the blocksize to a reasonable value - if (ai->blocksize <= 0) { - ai->blocksize = 4096*ai->channels*2; - MP_ERR(ai, "Audio block size is zero, setting to %d!\n", ai->blocksize); - } else if (ai->blocksize < 4096*ai->channels*2) { - ai->blocksize *= 4096*ai->channels*2/ai->blocksize; - MP_ERR(ai, "Audio block size too low, setting to %d!\n", ai->blocksize); - } - - ai->samplesize = 16; - ai->bytes_per_sample = 2; - - return 0; -} |