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AESinkOSS.cpp
500 lines (439 loc) · 13 KB
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AESinkOSS.cpp
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/*
* Copyright (C) 2010-2013 Team XBMC
* http://www.xbmc.org
*
* 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, 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 XBMC; see the file COPYING. If not, see
* <http://www.gnu.org/licenses/>.
*
*/
#include "AESinkOSS.h"
#include <stdint.h>
#include <limits.h>
#include "Utils/AEUtil.h"
#include "utils/StdString.h"
#include "utils/log.h"
#include "threads/SingleLock.h"
#include <sstream>
#include <sys/ioctl.h>
#if defined(OSS4) || defined(TARGET_FREEBSD)
#include <sys/soundcard.h>
#else
#include <linux/soundcard.h>
#endif
#define OSS_FRAMES 256
static enum AEChannel OSSChannelMap[9] =
{AE_CH_FL, AE_CH_FR, AE_CH_BL, AE_CH_BR, AE_CH_FC, AE_CH_LFE, AE_CH_SL, AE_CH_SR, AE_CH_NULL};
#if defined(SNDCTL_SYSINFO) && defined(SNDCTL_CARDINFO)
static int OSSSampleRateList[] =
{
5512,
8000,
11025,
16000,
22050,
32000,
44100,
48000,
64000,
88200,
96000,
176400,
192000,
384000,
0
};
#endif
CAESinkOSS::CAESinkOSS()
{
m_fd = 0;
}
CAESinkOSS::~CAESinkOSS()
{
Deinitialize();
}
std::string CAESinkOSS::GetDeviceUse(const AEAudioFormat format, const std::string &device)
{
#ifdef OSS4
if (AE_IS_RAW(format.m_dataFormat))
{
if (device.find_first_of('/') != 0)
return "/dev/dsp_ac3";
return device;
}
if (device.find_first_of('/') != 0)
return "/dev/dsp_multich";
#else
if (device.find_first_of('/') != 0)
return "/dev/dsp";
#endif
return device;
}
bool CAESinkOSS::Initialize(AEAudioFormat &format, std::string &device)
{
m_initFormat = format;
format.m_channelLayout = GetChannelLayout(format);
device = GetDeviceUse(format, device);
#ifdef __linux__
/* try to open in exclusive mode first (no software mixing) */
m_fd = open(device.c_str(), O_WRONLY | O_EXCL, 0);
if (m_fd == -1)
#endif
m_fd = open(device.c_str(), O_WRONLY, 0);
if (m_fd == -1)
{
CLog::Log(LOGERROR, "CAESinkOSS::Initialize - Failed to open the audio device: %s", device.c_str());
return false;
}
int format_mask;
if (ioctl(m_fd, SNDCTL_DSP_GETFMTS, &format_mask) == -1)
{
close(m_fd);
CLog::Log(LOGERROR, "CAESinkOSS::Initialize - Failed to get supported formats, assuming AFMT_S16_NE");
return false;
}
#ifdef OSS4
bool useCooked = true;
#endif
int oss_fmt = 0;
#ifdef AFMT_FLOAT
if ((format.m_dataFormat == AE_FMT_FLOAT) && (format_mask & AFMT_FLOAT ))
oss_fmt = AFMT_FLOAT;
else
#endif
#ifdef AFMT_S32_NE
if ((format.m_dataFormat == AE_FMT_S32NE) && (format_mask & AFMT_S32_NE))
oss_fmt = AFMT_S32_NE;
else if ((format.m_dataFormat == AE_FMT_S32BE) && (format_mask & AFMT_S32_BE))
oss_fmt = AFMT_S32_BE;
else if ((format.m_dataFormat == AE_FMT_S32LE) && (format_mask & AFMT_S32_LE))
oss_fmt = AFMT_S32_LE;
else
#endif
if ((format.m_dataFormat == AE_FMT_S16NE) && (format_mask & AFMT_S16_NE))
oss_fmt = AFMT_S16_NE;
else if ((format.m_dataFormat == AE_FMT_S16BE) && (format_mask & AFMT_S16_BE))
oss_fmt = AFMT_S16_BE;
else if ((format.m_dataFormat == AE_FMT_S16LE) && (format_mask & AFMT_S16_LE))
oss_fmt = AFMT_S16_LE;
else if ((format.m_dataFormat == AE_FMT_S8 ) && (format_mask & AFMT_S8 ))
oss_fmt = AFMT_S8;
else if ((format.m_dataFormat == AE_FMT_U8 ) && (format_mask & AFMT_U8 ))
oss_fmt = AFMT_U8;
else if ((AE_IS_RAW(format.m_dataFormat) ) && (format_mask & AFMT_AC3 ))
oss_fmt = AFMT_AC3;
else if (AE_IS_RAW(format.m_dataFormat))
{
close(m_fd);
CLog::Log(LOGERROR, "CAESinkOSS::Initialize - Failed to find a suitable RAW output format");
return false;
}
else
{
CLog::Log(LOGINFO, "CAESinkOSS::Initialize - Your hardware does not support %s, trying other formats", CAEUtil::DataFormatToStr(format.m_dataFormat));
/* fallback to the best supported format */
#ifdef AFMT_FLOAT
if (format_mask & AFMT_FLOAT )
{
oss_fmt = AFMT_FLOAT;
format.m_dataFormat = AE_FMT_FLOAT;
}
else
#endif
#ifdef AFMT_S32_NE
if (format_mask & AFMT_S32_NE)
{
oss_fmt = AFMT_S32_NE;
format.m_dataFormat = AE_FMT_S32NE;
}
else if (format_mask & AFMT_S32_BE)
{
oss_fmt = AFMT_S32_BE;
format.m_dataFormat = AE_FMT_S32BE;
}
else if (format_mask & AFMT_S32_LE)
{
oss_fmt = AFMT_S32_LE;
format.m_dataFormat = AE_FMT_S32LE;
}
else
#endif
if (format_mask & AFMT_S16_NE)
{
oss_fmt = AFMT_S16_NE;
format.m_dataFormat = AE_FMT_S16NE;
}
else if (format_mask & AFMT_S16_BE)
{
oss_fmt = AFMT_S16_BE;
format.m_dataFormat = AE_FMT_S16BE;
}
else if (format_mask & AFMT_S16_LE)
{
oss_fmt = AFMT_S16_LE;
format.m_dataFormat = AE_FMT_S16LE;
}
else if (format_mask & AFMT_S8 )
{
oss_fmt = AFMT_S8;
format.m_dataFormat = AE_FMT_S8;
}
else if (format_mask & AFMT_U8 )
{
oss_fmt = AFMT_U8;
format.m_dataFormat = AE_FMT_U8;
}
else
{
CLog::Log(LOGERROR, "CAESinkOSS::Initialize - Failed to find a suitable native output format, will try to use AE_FMT_S16NE anyway");
oss_fmt = AFMT_S16_NE;
format.m_dataFormat = AE_FMT_S16NE;
#ifdef OSS4
/* dont use cooked if we did not find a native format, OSS might be able to convert */
useCooked = false;
#endif
}
}
#ifdef OSS4
if (useCooked)
{
int oss_cooked = 1;
if (ioctl(m_fd, SNDCTL_DSP_COOKEDMODE, &oss_cooked) == -1)
CLog::Log(LOGWARNING, "CAESinkOSS::Initialize - Failed to set cooked mode");
}
#endif
if (ioctl(m_fd, SNDCTL_DSP_SETFMT, &oss_fmt) == -1)
{
close(m_fd);
CLog::Log(LOGERROR, "CAESinkOSS::Initialize - Failed to set the data format (%s)", CAEUtil::DataFormatToStr(format.m_dataFormat));
return false;
}
/* find the number we need to open to access the channels we need */
bool found = false;
int oss_ch = 0;
for (int ch = format.m_channelLayout.Count(); ch < 9; ++ch)
{
oss_ch = ch;
if (ioctl(m_fd, SNDCTL_DSP_CHANNELS, &oss_ch) != -1 && oss_ch >= (int)format.m_channelLayout.Count())
{
found = true;
break;
}
}
if (!found)
CLog::Log(LOGWARNING, "CAESinkOSS::Initialize - Failed to access the number of channels required, falling back");
#if defined(TARGET_FREEBSD)
/* fix hdmi 8 channels order */
if (!AE_IS_RAW(format.m_dataFormat) && 8 == oss_ch)
{
unsigned long long order = 0x0000000087346521ULL;
if (ioctl(m_fd, SNDCTL_DSP_SET_CHNORDER, &order) == -1)
CLog::Log(LOGWARNING, "CAESinkOSS::Initialize - Failed to set the channel order");
}
#elif defined(OSS4)
unsigned long long order = 0;
for (unsigned int i = 0; i < format.m_channelLayout.Count(); ++i)
switch (format.m_channelLayout[i])
{
case AE_CH_FL : order = (order << 4) | CHID_L ; break;
case AE_CH_FR : order = (order << 4) | CHID_R ; break;
case AE_CH_FC : order = (order << 4) | CHID_C ; break;
case AE_CH_LFE: order = (order << 4) | CHID_LFE; break;
case AE_CH_SL : order = (order << 4) | CHID_LS ; break;
case AE_CH_SR : order = (order << 4) | CHID_RS ; break;
case AE_CH_BL : order = (order << 4) | CHID_LR ; break;
case AE_CH_BR : order = (order << 4) | CHID_RR ; break;
default:
continue;
}
if (ioctl(m_fd, SNDCTL_DSP_SET_CHNORDER, &order) == -1)
{
if (ioctl(m_fd, SNDCTL_DSP_GET_CHNORDER, &order) == -1)
{
CLog::Log(LOGWARNING, "CAESinkOSS::Initialize - Failed to get the channel order, assuming CHNORDER_NORMAL");
}
}
#endif
int tmp = (CAEUtil::DataFormatToBits(format.m_dataFormat) >> 3) * format.m_channelLayout.Count() * OSS_FRAMES;
int pos = 0;
while ((tmp & 0x1) == 0x0)
{
tmp = tmp >> 1;
++pos;
}
int oss_frag = (4 << 16) | pos;
if (ioctl(m_fd, SNDCTL_DSP_SETFRAGMENT, &oss_frag) == -1)
CLog::Log(LOGWARNING, "CAESinkOSS::Initialize - Failed to set the fragment size");
int oss_sr = format.m_sampleRate;
if (ioctl(m_fd, SNDCTL_DSP_SPEED, &oss_sr) == -1)
{
close(m_fd);
CLog::Log(LOGERROR, "CAESinkOSS::Initialize - Failed to set the sample rate");
return false;
}
audio_buf_info bi;
if (ioctl(m_fd, SNDCTL_DSP_GETOSPACE, &bi) == -1)
{
close(m_fd);
CLog::Log(LOGERROR, "CAESinkOSS::Initialize - Failed to get the output buffer size");
return false;
}
format.m_sampleRate = oss_sr;
format.m_frameSize = (CAEUtil::DataFormatToBits(format.m_dataFormat) >> 3) * format.m_channelLayout.Count();
format.m_frames = bi.fragsize / format.m_frameSize;
format.m_frameSamples = format.m_frames * format.m_channelLayout.Count();
m_device = device;
m_format = format;
return true;
}
void CAESinkOSS::Deinitialize()
{
Stop();
if (m_fd != -1)
close(m_fd);
}
inline CAEChannelInfo CAESinkOSS::GetChannelLayout(AEAudioFormat format)
{
unsigned int count = 0;
if (format.m_dataFormat == AE_FMT_AC3 ||
format.m_dataFormat == AE_FMT_DTS ||
format.m_dataFormat == AE_FMT_EAC3)
count = 2;
else if (format.m_dataFormat == AE_FMT_TRUEHD ||
format.m_dataFormat == AE_FMT_DTSHD)
count = 8;
else
{
for (unsigned int c = 0; c < 8; ++c)
for (unsigned int i = 0; i < format.m_channelLayout.Count(); ++i)
if (format.m_channelLayout[i] == OSSChannelMap[c])
{
count = c + 1;
break;
}
}
CAEChannelInfo info;
for (unsigned int i = 0; i < count; ++i)
info += OSSChannelMap[i];
return info;
}
bool CAESinkOSS::IsCompatible(const AEAudioFormat format, const std::string &device)
{
AEAudioFormat tmp = format;
tmp.m_channelLayout = GetChannelLayout(format);
return (
tmp.m_sampleRate == m_initFormat.m_sampleRate &&
tmp.m_dataFormat == m_initFormat.m_dataFormat &&
tmp.m_channelLayout == m_initFormat.m_channelLayout &&
GetDeviceUse(tmp, device) == m_device
);
}
void CAESinkOSS::Stop()
{
#ifdef SNDCTL_DSP_RESET
if (m_fd != -1)
ioctl(m_fd, SNDCTL_DSP_RESET, NULL);
#endif
}
double CAESinkOSS::GetDelay()
{
if (m_fd == -1)
return 0.0;
int delay;
if (ioctl(m_fd, SNDCTL_DSP_GETODELAY, &delay) == -1)
return 0.0;
return (double)delay / (m_format.m_frameSize * m_format.m_sampleRate);
}
unsigned int CAESinkOSS::AddPackets(uint8_t *data, unsigned int frames, bool hasAudio)
{
int size = frames * m_format.m_frameSize;
if (m_fd == -1)
{
CLog::Log(LOGERROR, "CAESinkOSS::AddPackets - Failed to write");
return INT_MAX;
}
int wrote = write(m_fd, data, size);
if (wrote < 0)
{
CLog::Log(LOGERROR, "CAESinkOSS::AddPackets - Failed to write");
return INT_MAX;
}
return wrote / m_format.m_frameSize;
}
void CAESinkOSS::Drain()
{
if (m_fd == -1)
return;
// ???
}
void CAESinkOSS::EnumerateDevicesEx(AEDeviceInfoList &list, bool force)
{
int mixerfd;
const char * mixerdev = "/dev/mixer";
if ((mixerfd = open(mixerdev, O_RDWR, 0)) == -1)
{
CLog::Log(LOGERROR,
"CAESinkOSS::EnumerateDevicesEx - Failed to open mixer: %s", mixerdev);
return;
}
#if defined(SNDCTL_SYSINFO) && defined(SNDCTL_CARDINFO)
oss_sysinfo sysinfo;
if (ioctl(mixerfd, SNDCTL_SYSINFO, &sysinfo) == -1)
{
// hardware not supported
// OSSv4 required ?
close(mixerfd);
return;
}
for (int i = 0; i < sysinfo.numcards; ++i)
{
std::stringstream devicepath;
std::stringstream devicename;
CAEDeviceInfo info;
oss_card_info cardinfo;
devicepath << "/dev/dsp" << i;
info.m_deviceName = devicepath.str();
cardinfo.card = i;
if (ioctl(mixerfd, SNDCTL_CARDINFO, &cardinfo) == -1)
break;
devicename << cardinfo.shortname << " " << cardinfo.longname;
info.m_displayName = devicename.str();
if (info.m_displayName.find("HDMI") != std::string::npos)
info.m_deviceType = AE_DEVTYPE_HDMI;
else if (info.m_displayName.find("Digital") != std::string::npos)
info.m_deviceType = AE_DEVTYPE_IEC958;
else
info.m_deviceType = AE_DEVTYPE_PCM;
oss_audioinfo ainfo;
memset(&ainfo, 0, sizeof(ainfo));
ainfo.dev = i;
if (ioctl(mixerfd, SNDCTL_AUDIOINFO, &ainfo) != -1) {
#if 0
if (ainfo.oformats & AFMT_S32_LE)
info.m_dataFormats.push_back(AE_FMT_S32LE);
if (ainfo.oformats & AFMT_S16_LE)
info.m_dataFormats.push_back(AE_FMT_S16LE);
#endif
for (int j = 0;
j < ainfo.max_channels && AE_CH_NULL != OSSChannelMap[j];
++j)
info.m_channels += OSSChannelMap[j];
for (int *rate = OSSSampleRateList; *rate != 0; ++rate)
if (*rate >= ainfo.min_rate && *rate <= ainfo.max_rate)
info.m_sampleRates.push_back(*rate);
}
list.push_back(info);
}
#endif
close(mixerfd);
}