mirror of https://gitee.com/openkylin/qemu.git
ossaudio: do not use global variables
Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Kővágó, Zoltán
Gerd Hoffmann
parent
765b37da3f
commit
4045a85ad1
110
audio/ossaudio.c
110
audio/ossaudio.c
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@ -38,6 +38,17 @@
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#define USE_DSP_POLICY
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#endif
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typedef struct OSSConf {
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int try_mmap;
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int nfrags;
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int fragsize;
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const char *devpath_out;
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const char *devpath_in;
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int debug;
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int exclusive;
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int policy;
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} OSSConf;
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typedef struct OSSVoiceOut {
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HWVoiceOut hw;
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void *pcm_buf;
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@ -47,6 +58,7 @@ typedef struct OSSVoiceOut {
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int fragsize;
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int mmapped;
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int pending;
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OSSConf *conf;
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} OSSVoiceOut;
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typedef struct OSSVoiceIn {
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@ -55,28 +67,9 @@ typedef struct OSSVoiceIn {
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int fd;
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int nfrags;
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int fragsize;
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OSSConf *conf;
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} OSSVoiceIn;
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static struct {
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int try_mmap;
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int nfrags;
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int fragsize;
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const char *devpath_out;
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const char *devpath_in;
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int debug;
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int exclusive;
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int policy;
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} conf = {
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.try_mmap = 0,
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.nfrags = 4,
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.fragsize = 4096,
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.devpath_out = "/dev/dsp",
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.devpath_in = "/dev/dsp",
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.debug = 0,
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.exclusive = 0,
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.policy = 5
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};
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struct oss_params {
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int freq;
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audfmt_e fmt;
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@ -272,18 +265,18 @@ static int oss_get_version (int fd, int *version, const char *typ)
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#endif
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static int oss_open (int in, struct oss_params *req,
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struct oss_params *obt, int *pfd)
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struct oss_params *obt, int *pfd, OSSConf* conf)
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{
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int fd;
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int oflags = conf.exclusive ? O_EXCL : 0;
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int oflags = conf->exclusive ? O_EXCL : 0;
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audio_buf_info abinfo;
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int fmt, freq, nchannels;
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int setfragment = 1;
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const char *dspname = in ? conf.devpath_in : conf.devpath_out;
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const char *dspname = in ? conf->devpath_in : conf->devpath_out;
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const char *typ = in ? "ADC" : "DAC";
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/* Kludge needed to have working mmap on Linux */
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oflags |= conf.try_mmap ? O_RDWR : (in ? O_RDONLY : O_WRONLY);
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oflags |= conf->try_mmap ? O_RDWR : (in ? O_RDONLY : O_WRONLY);
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fd = open (dspname, oflags | O_NONBLOCK);
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if (-1 == fd) {
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@ -317,20 +310,20 @@ static int oss_open (int in, struct oss_params *req,
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}
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#ifdef USE_DSP_POLICY
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if (conf.policy >= 0) {
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if (conf->policy >= 0) {
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int version;
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if (!oss_get_version (fd, &version, typ)) {
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if (conf.debug) {
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if (conf->debug) {
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dolog ("OSS version = %#x\n", version);
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}
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if (version >= 0x040000) {
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int policy = conf.policy;
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int policy = conf->policy;
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if (ioctl (fd, SNDCTL_DSP_POLICY, &policy)) {
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oss_logerr2 (errno, typ,
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"Failed to set timing policy to %d\n",
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conf.policy);
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conf->policy);
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goto err;
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}
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setfragment = 0;
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@ -434,6 +427,7 @@ static int oss_run_out (HWVoiceOut *hw, int live)
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struct audio_buf_info abinfo;
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struct count_info cntinfo;
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int bufsize;
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OSSConf *conf = oss->conf;
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bufsize = hw->samples << hw->info.shift;
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@ -458,7 +452,7 @@ static int oss_run_out (HWVoiceOut *hw, int live)
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}
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if (abinfo.bytes > bufsize) {
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if (conf.debug) {
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if (conf->debug) {
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dolog ("warning: Invalid available size, size=%d bufsize=%d\n"
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"please report your OS/audio hw to av1474@comtv.ru\n",
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abinfo.bytes, bufsize);
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@ -467,7 +461,7 @@ static int oss_run_out (HWVoiceOut *hw, int live)
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}
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if (abinfo.bytes < 0) {
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if (conf.debug) {
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if (conf->debug) {
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dolog ("warning: Invalid available size, size=%d bufsize=%d\n",
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abinfo.bytes, bufsize);
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}
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@ -520,16 +514,17 @@ static int oss_init_out(HWVoiceOut *hw, struct audsettings *as,
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int fd;
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audfmt_e effective_fmt;
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struct audsettings obt_as;
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OSSConf *conf = drv_opaque;
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oss->fd = -1;
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req.fmt = aud_to_ossfmt (as->fmt, as->endianness);
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req.freq = as->freq;
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req.nchannels = as->nchannels;
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req.fragsize = conf.fragsize;
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req.nfrags = conf.nfrags;
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req.fragsize = conf->fragsize;
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req.nfrags = conf->nfrags;
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if (oss_open (0, &req, &obt, &fd)) {
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if (oss_open (0, &req, &obt, &fd, conf)) {
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return -1;
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}
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@ -556,7 +551,7 @@ static int oss_init_out(HWVoiceOut *hw, struct audsettings *as,
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hw->samples = (obt.nfrags * obt.fragsize) >> hw->info.shift;
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oss->mmapped = 0;
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if (conf.try_mmap) {
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if (conf->try_mmap) {
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oss->pcm_buf = mmap (
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NULL,
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hw->samples << hw->info.shift,
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@ -616,6 +611,7 @@ static int oss_init_out(HWVoiceOut *hw, struct audsettings *as,
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}
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oss->fd = fd;
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oss->conf = conf;
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return 0;
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}
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@ -687,15 +683,16 @@ static int oss_init_in(HWVoiceIn *hw, struct audsettings *as, void *drv_opaque)
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int fd;
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audfmt_e effective_fmt;
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struct audsettings obt_as;
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OSSConf *conf = drv_opaque;
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oss->fd = -1;
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req.fmt = aud_to_ossfmt (as->fmt, as->endianness);
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req.freq = as->freq;
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req.nchannels = as->nchannels;
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req.fragsize = conf.fragsize;
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req.nfrags = conf.nfrags;
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if (oss_open (1, &req, &obt, &fd)) {
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req.fragsize = conf->fragsize;
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req.nfrags = conf->nfrags;
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if (oss_open (1, &req, &obt, &fd, conf)) {
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return -1;
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}
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@ -729,6 +726,7 @@ static int oss_init_in(HWVoiceIn *hw, struct audsettings *as, void *drv_opaque)
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}
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oss->fd = fd;
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oss->conf = conf;
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return 0;
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}
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@ -848,69 +846,83 @@ static int oss_ctl_in (HWVoiceIn *hw, int cmd, ...)
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return 0;
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}
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static OSSConf glob_conf = {
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.try_mmap = 0,
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.nfrags = 4,
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.fragsize = 4096,
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.devpath_out = "/dev/dsp",
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.devpath_in = "/dev/dsp",
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.debug = 0,
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.exclusive = 0,
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.policy = 5
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};
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static void *oss_audio_init (void)
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{
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if (access(conf.devpath_in, R_OK | W_OK) < 0 ||
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access(conf.devpath_out, R_OK | W_OK) < 0) {
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OSSConf *conf = g_malloc(sizeof(OSSConf));
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*conf = glob_conf;
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if (access(conf->devpath_in, R_OK | W_OK) < 0 ||
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access(conf->devpath_out, R_OK | W_OK) < 0) {
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return NULL;
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}
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return &conf;
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return conf;
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}
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static void oss_audio_fini (void *opaque)
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{
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(void) opaque;
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g_free(opaque);
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}
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static struct audio_option oss_options[] = {
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{
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.name = "FRAGSIZE",
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.tag = AUD_OPT_INT,
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.valp = &conf.fragsize,
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.valp = &glob_conf.fragsize,
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.descr = "Fragment size in bytes"
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},
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{
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.name = "NFRAGS",
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.tag = AUD_OPT_INT,
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.valp = &conf.nfrags,
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.valp = &glob_conf.nfrags,
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.descr = "Number of fragments"
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},
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{
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.name = "MMAP",
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.tag = AUD_OPT_BOOL,
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.valp = &conf.try_mmap,
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.valp = &glob_conf.try_mmap,
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.descr = "Try using memory mapped access"
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},
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{
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.name = "DAC_DEV",
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.tag = AUD_OPT_STR,
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.valp = &conf.devpath_out,
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.valp = &glob_conf.devpath_out,
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.descr = "Path to DAC device"
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},
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{
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.name = "ADC_DEV",
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.tag = AUD_OPT_STR,
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.valp = &conf.devpath_in,
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.valp = &glob_conf.devpath_in,
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.descr = "Path to ADC device"
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},
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{
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.name = "EXCLUSIVE",
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.tag = AUD_OPT_BOOL,
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.valp = &conf.exclusive,
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.valp = &glob_conf.exclusive,
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.descr = "Open device in exclusive mode (vmix wont work)"
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},
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#ifdef USE_DSP_POLICY
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{
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.name = "POLICY",
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.tag = AUD_OPT_INT,
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.valp = &conf.policy,
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.valp = &glob_conf.policy,
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.descr = "Set the timing policy of the device, -1 to use fragment mode",
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},
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#endif
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{
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.name = "DEBUG",
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.tag = AUD_OPT_BOOL,
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.valp = &conf.debug,
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.valp = &glob_conf.debug,
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.descr = "Turn on some debugging messages"
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},
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{ /* End of list */ }
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