diff options
Diffstat (limited to 'src/audioOutputs/audioOutput_oss.c')
| -rw-r--r-- | src/audioOutputs/audioOutput_oss.c | 571 |
1 files changed, 0 insertions, 571 deletions
diff --git a/src/audioOutputs/audioOutput_oss.c b/src/audioOutputs/audioOutput_oss.c deleted file mode 100644 index 67ea11fe4..000000000 --- a/src/audioOutputs/audioOutput_oss.c +++ /dev/null @@ -1,571 +0,0 @@ -/* the Music Player Daemon (MPD) - * Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com) - * This project's homepage is: http://www.musicpd.org - * - * OSS audio output (c) 2004, 2005, 2006, 2007 by Eric Wong <eric@petta-tech.com> - * and Warren Dukes <warren.dukes@gmail.com> - * - * 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 - */ - -#include "../output_api.h" - -#ifdef HAVE_OSS - -#include "../utils.h" -#include "../log.h" - -#include <sys/stat.h> -#include <sys/ioctl.h> -#include <fcntl.h> - -#if defined(__OpenBSD__) || defined(__NetBSD__) -# include <soundcard.h> -#else /* !(defined(__OpenBSD__) || defined(__NetBSD__) */ -# include <sys/soundcard.h> -#endif /* !(defined(__OpenBSD__) || defined(__NetBSD__) */ - -#ifdef WORDS_BIGENDIAN -# define AFMT_S16_MPD AFMT_S16_BE -#else -# define AFMT_S16_MPD AFMT_S16_LE -#endif /* WORDS_BIGENDIAN */ - -typedef struct _OssData { - int fd; - const char *device; - struct audio_format audio_format; - int bitFormat; - int *supported[3]; - int numSupported[3]; - int *unsupported[3]; - int numUnsupported[3]; -} OssData; - -enum oss_support { - OSS_SUPPORTED = 1, - OSS_UNSUPPORTED = 0, - OSS_UNKNOWN = -1, -}; - -enum oss_param { - OSS_RATE = 0, - OSS_CHANNELS = 1, - OSS_BITS = 2, -}; - -static enum oss_param -getIndexForParam(unsigned param) -{ - enum oss_param idx = OSS_RATE; - - switch (param) { - case SNDCTL_DSP_SPEED: - idx = OSS_RATE; - break; - case SNDCTL_DSP_CHANNELS: - idx = OSS_CHANNELS; - break; - case SNDCTL_DSP_SAMPLESIZE: - idx = OSS_BITS; - break; - } - - return idx; -} - -static int findSupportedParam(OssData * od, unsigned param, int val) -{ - int i; - enum oss_param idx = getIndexForParam(param); - - for (i = 0; i < od->numSupported[idx]; i++) { - if (od->supported[idx][i] == val) - return 1; - } - - return 0; -} - -static int canConvert(int idx, int val) -{ - switch (idx) { - case OSS_BITS: - if (val != 16) - return 0; - break; - case OSS_CHANNELS: - if (val != 2) - return 0; - break; - } - - return 1; -} - -static int getSupportedParam(OssData * od, unsigned param, int val) -{ - int i; - enum oss_param idx = getIndexForParam(param); - int ret = -1; - int least = val; - int diff; - - for (i = 0; i < od->numSupported[idx]; i++) { - diff = od->supported[idx][i] - val; - if (diff < 0) - diff = -diff; - if (diff < least) { - if (!canConvert(idx, od->supported[idx][i])) { - continue; - } - least = diff; - ret = od->supported[idx][i]; - } - } - - return ret; -} - -static int findUnsupportedParam(OssData * od, unsigned param, int val) -{ - int i; - enum oss_param idx = getIndexForParam(param); - - for (i = 0; i < od->numUnsupported[idx]; i++) { - if (od->unsupported[idx][i] == val) - return 1; - } - - return 0; -} - -static void addSupportedParam(OssData * od, unsigned param, int val) -{ - enum oss_param idx = getIndexForParam(param); - - od->numSupported[idx]++; - od->supported[idx] = xrealloc(od->supported[idx], - od->numSupported[idx] * sizeof(int)); - od->supported[idx][od->numSupported[idx] - 1] = val; -} - -static void addUnsupportedParam(OssData * od, unsigned param, int val) -{ - enum oss_param idx = getIndexForParam(param); - - od->numUnsupported[idx]++; - od->unsupported[idx] = xrealloc(od->unsupported[idx], - od->numUnsupported[idx] * - sizeof(int)); - od->unsupported[idx][od->numUnsupported[idx] - 1] = val; -} - -static void removeSupportedParam(OssData * od, unsigned param, int val) -{ - int i; - int j = 0; - enum oss_param idx = getIndexForParam(param); - - for (i = 0; i < od->numSupported[idx] - 1; i++) { - if (od->supported[idx][i] == val) - j = 1; - od->supported[idx][i] = od->supported[idx][i + j]; - } - - od->numSupported[idx]--; - od->supported[idx] = xrealloc(od->supported[idx], - od->numSupported[idx] * sizeof(int)); -} - -static void removeUnsupportedParam(OssData * od, unsigned param, int val) -{ - int i; - int j = 0; - enum oss_param idx = getIndexForParam(param); - - for (i = 0; i < od->numUnsupported[idx] - 1; i++) { - if (od->unsupported[idx][i] == val) - j = 1; - od->unsupported[idx][i] = od->unsupported[idx][i + j]; - } - - od->numUnsupported[idx]--; - od->unsupported[idx] = xrealloc(od->unsupported[idx], - od->numUnsupported[idx] * - sizeof(int)); -} - -static enum oss_support -isSupportedParam(OssData * od, unsigned param, int val) -{ - if (findSupportedParam(od, param, val)) - return OSS_SUPPORTED; - if (findUnsupportedParam(od, param, val)) - return OSS_UNSUPPORTED; - return OSS_UNKNOWN; -} - -static void supportParam(OssData * od, unsigned param, int val) -{ - enum oss_support supported = isSupportedParam(od, param, val); - - if (supported == OSS_SUPPORTED) - return; - - if (supported == OSS_UNSUPPORTED) { - removeUnsupportedParam(od, param, val); - } - - addSupportedParam(od, param, val); -} - -static void unsupportParam(OssData * od, unsigned param, int val) -{ - enum oss_support supported = isSupportedParam(od, param, val); - - if (supported == OSS_UNSUPPORTED) - return; - - if (supported == OSS_SUPPORTED) { - removeSupportedParam(od, param, val); - } - - addUnsupportedParam(od, param, val); -} - -static OssData *newOssData(void) -{ - OssData *ret = xmalloc(sizeof(OssData)); - - ret->device = NULL; - ret->fd = -1; - - ret->supported[OSS_RATE] = NULL; - ret->supported[OSS_CHANNELS] = NULL; - ret->supported[OSS_BITS] = NULL; - ret->unsupported[OSS_RATE] = NULL; - ret->unsupported[OSS_CHANNELS] = NULL; - ret->unsupported[OSS_BITS] = NULL; - - ret->numSupported[OSS_RATE] = 0; - ret->numSupported[OSS_CHANNELS] = 0; - ret->numSupported[OSS_BITS] = 0; - ret->numUnsupported[OSS_RATE] = 0; - ret->numUnsupported[OSS_CHANNELS] = 0; - ret->numUnsupported[OSS_BITS] = 0; - - supportParam(ret, SNDCTL_DSP_SPEED, 48000); - supportParam(ret, SNDCTL_DSP_SPEED, 44100); - supportParam(ret, SNDCTL_DSP_CHANNELS, 2); - supportParam(ret, SNDCTL_DSP_SAMPLESIZE, 16); - - return ret; -} - -static void freeOssData(OssData * od) -{ - if (od->supported[OSS_RATE]) - free(od->supported[OSS_RATE]); - if (od->supported[OSS_CHANNELS]) - free(od->supported[OSS_CHANNELS]); - if (od->supported[OSS_BITS]) - free(od->supported[OSS_BITS]); - if (od->unsupported[OSS_RATE]) - free(od->unsupported[OSS_RATE]); - if (od->unsupported[OSS_CHANNELS]) - free(od->unsupported[OSS_CHANNELS]); - if (od->unsupported[OSS_BITS]) - free(od->unsupported[OSS_BITS]); - - free(od); -} - -#define OSS_STAT_NO_ERROR 0 -#define OSS_STAT_NOT_CHAR_DEV -1 -#define OSS_STAT_NO_PERMS -2 -#define OSS_STAT_DOESN_T_EXIST -3 -#define OSS_STAT_OTHER -4 - -static int oss_statDevice(const char *device, int *stErrno) -{ - struct stat st; - - if (0 == stat(device, &st)) { - if (!S_ISCHR(st.st_mode)) { - return OSS_STAT_NOT_CHAR_DEV; - } - } else { - *stErrno = errno; - - switch (errno) { - case ENOENT: - case ENOTDIR: - return OSS_STAT_DOESN_T_EXIST; - case EACCES: - return OSS_STAT_NO_PERMS; - default: - return OSS_STAT_OTHER; - } - } - - return 0; -} - -static const char *default_devices[] = { "/dev/sound/dsp", "/dev/dsp" }; - -static int oss_testDefault(void) -{ - int fd, i; - - for (i = ARRAY_SIZE(default_devices); --i >= 0; ) { - if ((fd = open(default_devices[i], O_WRONLY)) >= 0) { - xclose(fd); - return 0; - } - WARNING("Error opening OSS device \"%s\": %s\n", - default_devices[i], strerror(errno)); - } - - return -1; -} - -static void *oss_open_default(ConfigParam *param) -{ - int i; - int err[ARRAY_SIZE(default_devices)]; - int ret[ARRAY_SIZE(default_devices)]; - - for (i = ARRAY_SIZE(default_devices); --i >= 0; ) { - ret[i] = oss_statDevice(default_devices[i], &err[i]); - if (ret[i] == 0) { - OssData *od = newOssData(); - od->device = default_devices[i]; - return od; - } - } - - if (param) - ERROR("error trying to open specified OSS device" - " at line %i\n", param->line); - else - ERROR("error trying to open default OSS device\n"); - - for (i = ARRAY_SIZE(default_devices); --i >= 0; ) { - const char *dev = default_devices[i]; - switch(ret[i]) { - case OSS_STAT_DOESN_T_EXIST: - ERROR("%s not found\n", dev); - break; - case OSS_STAT_NOT_CHAR_DEV: - ERROR("%s is not a character device\n", dev); - break; - case OSS_STAT_NO_PERMS: - ERROR("%s: permission denied\n", dev); - break; - default: - ERROR("Error accessing %s: %s\n", dev, strerror(err[i])); - } - } - exit(EXIT_FAILURE); - return NULL; /* some compilers can be dumb... */ -} - -static void *oss_initDriver(mpd_unused struct audio_output *audioOutput, - mpd_unused const struct audio_format *audio_format, - ConfigParam * param) -{ - if (param) { - BlockParam *bp = getBlockParam(param, "device"); - if (bp) { - OssData *od = newOssData(); - od->device = bp->value; - return od; - } - } - return oss_open_default(param); -} - -static void oss_finishDriver(void *data) -{ - OssData *od = data; - - freeOssData(od); -} - -static int setParam(OssData * od, unsigned param, int *value) -{ - int val = *value; - int copy; - enum oss_support supported = isSupportedParam(od, param, val); - - do { - if (supported == OSS_UNSUPPORTED) { - val = getSupportedParam(od, param, val); - if (copy < 0) - return -1; - } - copy = val; - if (ioctl(od->fd, param, ©)) { - unsupportParam(od, param, val); - supported = OSS_UNSUPPORTED; - } else { - if (supported == OSS_UNKNOWN) { - supportParam(od, param, val); - supported = OSS_SUPPORTED; - } - val = copy; - } - } while (supported == OSS_UNSUPPORTED); - - *value = val; - - return 0; -} - -static void oss_close(OssData * od) -{ - if (od->fd >= 0) - while (close(od->fd) && errno == EINTR) ; - od->fd = -1; -} - -static int oss_open(OssData *od) -{ - int tmp; - - if ((od->fd = open(od->device, O_WRONLY)) < 0) { - ERROR("Error opening OSS device \"%s\": %s\n", od->device, - strerror(errno)); - goto fail; - } - - tmp = od->audio_format.channels; - if (setParam(od, SNDCTL_DSP_CHANNELS, &tmp)) { - ERROR("OSS device \"%s\" does not support %u channels: %s\n", - od->device, od->audio_format.channels, strerror(errno)); - goto fail; - } - od->audio_format.channels = tmp; - - tmp = od->audio_format.sample_rate; - if (setParam(od, SNDCTL_DSP_SPEED, &tmp)) { - ERROR("OSS device \"%s\" does not support %u Hz audio: %s\n", - od->device, od->audio_format.sample_rate, - strerror(errno)); - goto fail; - } - od->audio_format.sample_rate = tmp; - - switch (od->audio_format.bits) { - case 8: - tmp = AFMT_S8; - break; - case 16: - tmp = AFMT_S16_MPD; - } - - if (setParam(od, SNDCTL_DSP_SAMPLESIZE, &tmp)) { - ERROR("OSS device \"%s\" does not support %u bit audio: %s\n", - od->device, tmp, strerror(errno)); - goto fail; - } - - return 0; - -fail: - oss_close(od); - return -1; -} - -static int oss_openDevice(void *data, - struct audio_format *audioFormat) -{ - int ret; - OssData *od = data; - - od->audio_format = *audioFormat; - - if ((ret = oss_open(od)) < 0) - return ret; - - *audioFormat = od->audio_format; - - DEBUG("oss device \"%s\" will be playing %u bit %u channel audio at " - "%u Hz\n", od->device, - od->audio_format.bits, od->audio_format.channels, - od->audio_format.sample_rate); - - return ret; -} - -static void oss_closeDevice(void *data) -{ - OssData *od = data; - - oss_close(od); -} - -static void oss_dropBufferedAudio(void *data) -{ - OssData *od = data; - - if (od->fd >= 0) { - ioctl(od->fd, SNDCTL_DSP_RESET, 0); - oss_close(od); - } -} - -static int oss_playAudio(void *data, - const char *playChunk, size_t size) -{ - OssData *od = data; - ssize_t ret; - - /* reopen the device since it was closed by dropBufferedAudio */ - if (od->fd < 0 && oss_open(od) < 0) - return -1; - - while (size > 0) { - ret = write(od->fd, playChunk, size); - if (ret < 0) { - if (errno == EINTR) - continue; - ERROR("closing oss device \"%s\" due to write error: " - "%s\n", od->device, strerror(errno)); - oss_closeDevice(od); - return -1; - } - playChunk += ret; - size -= ret; - } - - return 0; -} - -const struct audio_output_plugin ossPlugin = { - .name = "oss", - .test_default_device = oss_testDefault, - .init = oss_initDriver, - .finish = oss_finishDriver, - .open = oss_openDevice, - .play = oss_playAudio, - .cancel = oss_dropBufferedAudio, - .close = oss_closeDevice, -}; - -#else /* HAVE OSS */ - -DISABLED_AUDIO_OUTPUT_PLUGIN(ossPlugin) -#endif /* HAVE_OSS */ |