/
mpegrecorder.cpp
1468 lines (1249 loc) · 40.3 KB
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mpegrecorder.cpp
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// -*- Mode: c++ -*-
// C headers
#include <ctime>
// C++ headers
#include <algorithm>
#include <vector>
using namespace std;
// POSIX headers
#include <fcntl.h>
#include <unistd.h>
#include <inttypes.h>
// System headers
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <sys/time.h>
#include <sys/poll.h>
#include <linux/videodev2.h>
#include "mythconfig.h"
// avlib headers
extern "C" {
#include "libavcodec/avcodec.h"
}
// MythTV headers
#include "mpegrecorder.h"
#include "ringbuffer.h"
#include "mythcorecontext.h"
#include "programinfo.h"
#include "recordingprofile.h"
#include "tv_rec.h"
#include "mythdate.h"
#include "cardutil.h"
// ivtv header
extern "C" {
#include "ivtv_myth.h"
}
#define IVTV_KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
#define LOC QString("MPEGRec[%1](%2): ") \
.arg(tvrec ? tvrec->GetCaptureCardNum() : -1).arg(videodevice)
const int MpegRecorder::audRateL1[] =
{
32, 64, 96, 128, 160, 192, 224, 256, 288, 320, 352, 384, 416, 448, 0
};
const int MpegRecorder::audRateL2[] =
{
32, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 384, 0
};
const int MpegRecorder::audRateL3[] =
{
32, 40, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 0
};
const char* MpegRecorder::streamType[] =
{
"MPEG-2 PS", "MPEG-2 TS", "MPEG-1 VCD", "PES AV",
"", "PES V", "", "PES A",
"", "", "DVD", "VCD",
"SVCD", "DVD-Special 1", "DVD-Special 2", 0
};
const char* MpegRecorder::aspectRatio[] =
{
"Square", "4:3", "16:9", "2.21:1", 0
};
MpegRecorder::MpegRecorder(TVRec *rec) :
V4LRecorder(rec),
// Debugging variables
deviceIsMpegFile(false), bufferSize(0),
// Driver info
card(QString::null), driver(QString::null),
version(0),
supports_sliced_vbi(false),
// State
start_stop_encoding_lock(QMutex::Recursive),
// Pausing state
cleartimeonpause(false),
// Encoding info
width(720), height(480),
bitrate(4500), maxbitrate(6000),
streamtype(0), aspectratio(2),
audtype(2), audsamplerate(48000),
audbitratel1(14), audbitratel2(14),
audbitratel3(10),
audvolume(80), language(0),
low_mpeg4avgbitrate(4500), low_mpeg4peakbitrate(6000),
medium_mpeg4avgbitrate(9000), medium_mpeg4peakbitrate(13500),
high_mpeg4avgbitrate(13500), high_mpeg4peakbitrate(20200),
// Input file descriptors
chanfd(-1), readfd(-1),
_device_read_buffer(NULL)
{
}
MpegRecorder::~MpegRecorder()
{
TeardownAll();
}
void MpegRecorder::TeardownAll(void)
{
StopRecording();
if (chanfd >= 0)
{
close(chanfd);
chanfd = -1;
}
if (readfd >= 0)
{
close(readfd);
readfd = -1;
}
}
static int find_index(const int *audio_rate, int value)
{
for (uint i = 0; audio_rate[i] != 0; i++)
{
if (audio_rate[i] == value)
return i;
}
return -1;
}
void MpegRecorder::SetOption(const QString &opt, int value)
{
if (opt == "width")
width = value;
else if (opt == "height")
height = value;
else if (opt == "mpeg2bitrate")
bitrate = value;
else if (opt == "mpeg2maxbitrate")
maxbitrate = value;
else if (opt == "samplerate")
audsamplerate = value;
else if (opt == "mpeg2audbitratel1")
{
int index = find_index(audRateL1, value);
if (index >= 0)
audbitratel1 = index + 1;
else
{
LOG(VB_GENERAL, LOG_ERR, LOC + "Audiorate(L1): " +
QString("%1 is invalid").arg(value));
}
}
else if (opt == "mpeg2audbitratel2")
{
int index = find_index(audRateL2, value);
if (index >= 0)
audbitratel2 = index + 1;
else
{
LOG(VB_GENERAL, LOG_ERR, LOC + "Audiorate(L2): " +
QString("%1 is invalid").arg(value));
}
}
else if (opt == "mpeg2audbitratel3")
{
int index = find_index(audRateL3, value);
if (index >= 0)
audbitratel3 = index + 1;
else
{
LOG(VB_GENERAL, LOG_ERR, LOC + "Audiorate(L2): " +
QString("%1 is invalid").arg(value));
}
}
else if (opt == "mpeg2audvolume")
audvolume = value;
else if (opt.right(16) == "_mpeg4avgbitrate")
{
if (opt.left(3) == "low")
low_mpeg4avgbitrate = value;
else if (opt.left(6) == "medium")
medium_mpeg4avgbitrate = value;
else if (opt.left(4) == "high")
high_mpeg4avgbitrate = value;
else
V4LRecorder::SetOption(opt, value);
}
else if (opt.right(17) == "_mpeg4peakbitrate")
{
if (opt.left(3) == "low")
low_mpeg4peakbitrate = value;
else if (opt.left(6) == "medium")
medium_mpeg4peakbitrate = value;
else if (opt.left(4) == "high")
high_mpeg4peakbitrate = value;
else
V4LRecorder::SetOption(opt, value);
}
else
V4LRecorder::SetOption(opt, value);
}
void MpegRecorder::SetOption(const QString &opt, const QString &value)
{
if (opt == "mpeg2streamtype")
{
bool found = false;
for (unsigned int i = 0; i < sizeof(streamType) / sizeof(char*); i++)
{
if (QString(streamType[i]) == value)
{
streamtype = i;
found = true;
break;
}
}
if (!found)
{
LOG(VB_GENERAL, LOG_ERR, LOC + "MPEG2 stream type: " +
QString("%1 is invalid").arg(value));
}
}
else if (opt == "mpeg2language")
{
bool ok = false;
language = value.toInt(&ok); // on failure language will be 0
if (!ok)
{
LOG(VB_GENERAL, LOG_ERR, LOC + "MPEG2 language (stereo) flag " +
QString("'%1' is invalid").arg(value));
}
}
else if (opt == "mpeg2aspectratio")
{
bool found = false;
for (int i = 0; aspectRatio[i] != 0; i++)
{
if (QString(aspectRatio[i]) == value)
{
aspectratio = i + 1;
found = true;
break;
}
}
if (!found)
{
LOG(VB_GENERAL, LOG_ERR, LOC + "MPEG2 Aspect-ratio: " +
QString("%1 is invalid").arg(value));
}
}
else if (opt == "mpeg2audtype")
{
if (value == "Layer I")
audtype = V4L2_MPEG_AUDIO_ENCODING_LAYER_1 + 1;
else if (value == "Layer II")
audtype = V4L2_MPEG_AUDIO_ENCODING_LAYER_2 + 1;
else if (value == "Layer III")
audtype = V4L2_MPEG_AUDIO_ENCODING_LAYER_3 + 1;
else
{
LOG(VB_GENERAL, LOG_ERR, LOC + "MPEG2 audio layer: " +
QString("%1 is invalid").arg(value));
}
}
else if (opt == "audiocodec")
{
if (value == "AAC Hardware Encoder")
audtype = V4L2_MPEG_AUDIO_ENCODING_AAC + 1;
else if (value == "AC3 Hardware Encoder")
audtype = V4L2_MPEG_AUDIO_ENCODING_AC3 + 1;
}
else
{
V4LRecorder::SetOption(opt, value);
}
}
void MpegRecorder::SetOptionsFromProfile(RecordingProfile *profile,
const QString &videodev,
const QString &audiodev,
const QString &vbidev)
{
(void)audiodev;
(void)vbidev;
if (videodev.toLower().left(5) == "file:")
{
deviceIsMpegFile = true;
bufferSize = 64000;
QString newVideoDev = videodev;
if (newVideoDev.startsWith("file:", Qt::CaseInsensitive))
newVideoDev = newVideoDev.remove(0,5);
SetOption("videodevice", newVideoDev);
}
else
{
SetOption("videodevice", videodev);
}
SetOption("vbidevice", vbidev);
SetOption("audiodevice", audiodev);
SetOption("tvformat", gCoreContext->GetSetting("TVFormat"));
SetOption("vbiformat", gCoreContext->GetSetting("VbiFormat"));
SetIntOption(profile, "mpeg2bitrate");
SetIntOption(profile, "mpeg2maxbitrate");
SetStrOption(profile, "mpeg2streamtype");
SetStrOption(profile, "mpeg2aspectratio");
SetStrOption(profile, "mpeg2language");
SetIntOption(profile, "samplerate");
SetStrOption(profile, "mpeg2audtype");
SetIntOption(profile, "mpeg2audbitratel1");
SetIntOption(profile, "mpeg2audbitratel2");
SetIntOption(profile, "mpeg2audbitratel3");
SetIntOption(profile, "mpeg2audvolume");
SetIntOption(profile, "width");
SetIntOption(profile, "height");
SetIntOption(profile, "low_mpeg4avgbitrate");
SetIntOption(profile, "low_mpeg4peakbitrate");
SetIntOption(profile, "medium_mpeg4avgbitrate");
SetIntOption(profile, "medium_mpeg4peakbitrate");
SetIntOption(profile, "high_mpeg4avgbitrate");
SetIntOption(profile, "high_mpeg4peakbitrate");
SetStrOption(profile, "audiocodec");
}
// same as the base class, it just doesn't complain if an option is missing
void MpegRecorder::SetIntOption(RecordingProfile *profile, const QString &name)
{
const Setting *setting = profile->byName(name);
if (setting)
SetOption(name, setting->getValue().toInt());
}
// same as the base class, it just doesn't complain if an option is missing
void MpegRecorder::SetStrOption(RecordingProfile *profile, const QString &name)
{
const Setting *setting = profile->byName(name);
if (setting)
SetOption(name, setting->getValue());
}
bool MpegRecorder::OpenMpegFileAsInput(void)
{
QByteArray vdevice = videodevice.toAscii();
chanfd = readfd = open(vdevice.constData(), O_RDONLY);
if (readfd < 0)
{
LOG(VB_GENERAL, LOG_ERR, LOC + QString("Can't open MPEG File '%1'")
.arg(videodevice) + ENO);
return false;
}
return true;
}
bool MpegRecorder::OpenV4L2DeviceAsInput(void)
{
// open implicitly starts encoding, so we need the lock..
QMutexLocker locker(&start_stop_encoding_lock);
QByteArray vdevice = videodevice.toAscii();
chanfd = open(vdevice.constData(), O_RDWR);
if (chanfd < 0)
{
LOG(VB_GENERAL, LOG_ERR, LOC + "Can't open video device. " + ENO);
return false;
}
bufferSize = 4096;
bool supports_tuner = false, supports_audio = false;
uint32_t capabilities = 0;
if (CardUtil::GetV4LInfo(chanfd, card, driver, version, capabilities))
{
supports_sliced_vbi = !!(capabilities & V4L2_CAP_SLICED_VBI_CAPTURE);
supports_tuner = !!(capabilities & V4L2_CAP_TUNER);
supports_audio = !!(capabilities & V4L2_CAP_AUDIO);
/// Determine hacks needed for specific drivers & driver versions
if (driver == "hdpvr")
{
bufferSize = 1500 * TSPacket::kSize;
m_h264_parser.use_I_forKeyframes(false);
}
}
if (!(capabilities & V4L2_CAP_VIDEO_CAPTURE))
{
LOG(VB_GENERAL, LOG_ERR, LOC + "V4L version 1, unsupported");
close(chanfd);
chanfd = -1;
return false;
}
if (!SetVideoCaptureFormat(chanfd))
{
close(chanfd);
chanfd = -1;
return false;
}
if (supports_tuner)
SetLanguageMode(chanfd); // we don't care if this fails...
if (supports_audio)
SetRecordingVolume(chanfd); // we don't care if this fails...
if (!SetV4L2DeviceOptions(chanfd))
{
close(chanfd);
chanfd = -1;
return false;
}
SetVBIOptions(chanfd); // we don't care if this fails...
readfd = open(vdevice.constData(), O_RDWR | O_NONBLOCK);
if (readfd < 0)
{
LOG(VB_GENERAL, LOG_ERR, LOC + "Can't open video device." + ENO);
close(chanfd);
chanfd = -1;
return false;
}
if (_device_read_buffer)
{
if (_device_read_buffer->IsRunning())
_device_read_buffer->Stop();
delete _device_read_buffer;
_device_read_buffer = NULL;
}
_device_read_buffer = new DeviceReadBuffer(this);
if (!_device_read_buffer)
{
LOG(VB_GENERAL, LOG_ERR, LOC + "Failed to allocate DRB buffer");
_error = "Failed to allocate DRB buffer";
close(chanfd);
chanfd = -1;
close(readfd);
readfd = -1;
return false;
}
if (!_device_read_buffer->Setup(vdevice.constData(), readfd))
{
LOG(VB_GENERAL, LOG_ERR, LOC + "Failed to setup DRB buffer");
_error = "Failed to setup DRB buffer";
close(chanfd);
chanfd = -1;
close(readfd);
readfd = -1;
return false;
}
LOG(VB_RECORD, LOG_INFO, LOC + "DRB ready");
if (vbi_fd >= 0)
vbi_thread = new VBIThread(this);
return true;
}
bool MpegRecorder::SetVideoCaptureFormat(int chanfd)
{
if (driver == "hdpvr")
return true;
struct v4l2_format vfmt;
memset(&vfmt, 0, sizeof(vfmt));
vfmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
if (ioctl(chanfd, VIDIOC_G_FMT, &vfmt) < 0)
{
LOG(VB_GENERAL, LOG_ERR, LOC + "Error getting format" + ENO);
return false;
}
vfmt.fmt.pix.width = width;
vfmt.fmt.pix.height = height;
if (ioctl(chanfd, VIDIOC_S_FMT, &vfmt) < 0)
{
LOG(VB_GENERAL, LOG_ERR, LOC + "Error setting format" + ENO);
return false;
}
return true;
}
/// Set audio language mode
bool MpegRecorder::SetLanguageMode(int chanfd)
{
struct v4l2_tuner vt;
memset(&vt, 0, sizeof(struct v4l2_tuner));
if (ioctl(chanfd, VIDIOC_G_TUNER, &vt) < 0)
{
LOG(VB_GENERAL, LOG_WARNING, LOC + "Unable to get audio mode" + ENO);
return false;
}
switch (language)
{
case 0:
vt.audmode = V4L2_TUNER_MODE_LANG1;
break;
case 1:
vt.audmode = V4L2_TUNER_MODE_LANG2;
break;
case 2:
vt.audmode = V4L2_TUNER_MODE_LANG1_LANG2;
break;
default:
vt.audmode = V4L2_TUNER_MODE_LANG1;
}
int audio_layer = GetFilteredAudioLayer();
bool success = true;
if ((2 == language) && (1 == audio_layer))
{
LOG(VB_GENERAL, LOG_WARNING,
"Dual audio mode incompatible with Layer I audio."
"\n\t\t\tFalling back to Main Language");
vt.audmode = V4L2_TUNER_MODE_LANG1;
success = false;
}
if (ioctl(chanfd, VIDIOC_S_TUNER, &vt) < 0)
{
LOG(VB_GENERAL, LOG_WARNING, LOC + "Unable to set audio mode" + ENO);
success = false;
}
return success;
}
bool MpegRecorder::SetRecordingVolume(int chanfd)
{
// Get volume min/max values
struct v4l2_queryctrl qctrl;
memset(&qctrl, 0 , sizeof(struct v4l2_queryctrl));
qctrl.id = V4L2_CID_AUDIO_VOLUME;
if ((ioctl(chanfd, VIDIOC_QUERYCTRL, &qctrl) < 0) ||
(qctrl.flags & V4L2_CTRL_FLAG_DISABLED))
{
LOG(VB_CHANNEL, LOG_WARNING,
LOC + "Audio volume control not supported.");
return false;
}
// calculate volume in card units.
int range = qctrl.maximum - qctrl.minimum;
int value = (int) ((range * audvolume * 0.01f) + qctrl.minimum);
int ctrl_volume = min(qctrl.maximum, max(qctrl.minimum, value));
// Set recording volume
struct v4l2_control ctrl;
ctrl.id = V4L2_CID_AUDIO_VOLUME;
ctrl.value = ctrl_volume;
if (ioctl(chanfd, VIDIOC_S_CTRL, &ctrl) < 0)
{
LOG(VB_GENERAL, LOG_WARNING, LOC +
"Unable to set recording volume" + ENO + "\n\t\t\t" +
"If you are using an AverMedia M179 card this is normal.");
return false;
}
return true;
}
uint MpegRecorder::GetFilteredStreamType(void) const
{
uint st = (uint) streamtype;
if (driver == "ivtv")
{
switch (st)
{
case 2: st = 2; break;
case 10:
case 13:
case 14: st = 10; break;
case 11: st = 11; break;
case 12: st = 12; break;
default: st = 0; break;
}
}
if (st != (uint) streamtype)
{
LOG(VB_GENERAL, LOG_WARNING, LOC +
QString("Stream type '%1'\n\t\t\t"
"is not supported by %2 driver, using '%3' instead.")
.arg(streamType[streamtype]).arg(driver).arg(streamType[st]));
}
return st;
}
uint MpegRecorder::GetFilteredAudioSampleRate(void) const
{
uint sr = (uint) audsamplerate;
sr = (driver == "ivtv") ? 48000 : sr; // only 48kHz works properly.
if (sr != (uint) audsamplerate)
{
LOG(VB_GENERAL, LOG_WARNING, LOC +
QString("Audio sample rate %1 Hz\n\t\t\t"
"is not supported by %2 driver, using %3 Hz instead.")
.arg(audsamplerate).arg(driver).arg(sr));
}
switch (sr)
{
case 32000: return V4L2_MPEG_AUDIO_SAMPLING_FREQ_32000;
case 44100: return V4L2_MPEG_AUDIO_SAMPLING_FREQ_44100;
case 48000: return V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000;
default: return V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000;
}
}
uint MpegRecorder::GetFilteredAudioLayer(void) const
{
uint layer = (uint) audtype;
layer = max(min(layer, 3U), 1U);
layer = (driver == "ivtv") ? 2 : layer;
if (layer != (uint) audtype)
{
LOG(VB_GENERAL, LOG_WARNING, LOC +
QString("MPEG layer %1 does not work properly\n\t\t\t"
"with %2 driver. Using MPEG layer %3 audio instead.")
.arg(audtype).arg(driver).arg(layer));
}
return layer;
}
uint MpegRecorder::GetFilteredAudioBitRate(uint audio_layer) const
{
return ((2 == audio_layer) ? max(audbitratel2, 10) :
((3 == audio_layer) ? audbitratel3 : max(audbitratel1, 6)));
}
static int streamtype_ivtv_to_v4l2(int st)
{
switch (st)
{
case 0: return V4L2_MPEG_STREAM_TYPE_MPEG2_PS;
case 1: return V4L2_MPEG_STREAM_TYPE_MPEG2_TS;
case 2: return V4L2_MPEG_STREAM_TYPE_MPEG1_VCD;
case 3: return V4L2_MPEG_STREAM_TYPE_MPEG2_PS; /* PES A/V */
case 5: return V4L2_MPEG_STREAM_TYPE_MPEG2_PS; /* PES V */
case 7: return V4L2_MPEG_STREAM_TYPE_MPEG2_PS; /* PES A */
case 10: return V4L2_MPEG_STREAM_TYPE_MPEG2_DVD;
case 11: return V4L2_MPEG_STREAM_TYPE_MPEG1_VCD; /* VCD */
case 12: return V4L2_MPEG_STREAM_TYPE_MPEG2_SVCD;
case 13: return V4L2_MPEG_STREAM_TYPE_MPEG2_DVD; /* DVD-Special 1 */
case 14: return V4L2_MPEG_STREAM_TYPE_MPEG2_DVD; /* DVD-Special 2 */
default: return V4L2_MPEG_STREAM_TYPE_MPEG2_TS;
}
}
static void add_ext_ctrl(vector<struct v4l2_ext_control> &ctrl_list,
uint32_t id, int32_t value)
{
struct v4l2_ext_control tmp_ctrl;
memset(&tmp_ctrl, 0, sizeof(struct v4l2_ext_control));
tmp_ctrl.id = id;
tmp_ctrl.value = value;
ctrl_list.push_back(tmp_ctrl);
}
static void set_ctrls(int fd, vector<struct v4l2_ext_control> &ext_ctrls)
{
static QMutex control_description_lock;
static QMap<uint32_t,QString> control_description;
control_description_lock.lock();
if (control_description.isEmpty())
{
control_description[V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ] =
"Audio Sampling Frequency";
control_description[V4L2_CID_MPEG_VIDEO_ASPECT] =
"Video Aspect ratio";
control_description[V4L2_CID_MPEG_AUDIO_ENCODING] =
"Audio Encoding";
control_description[V4L2_CID_MPEG_AUDIO_L2_BITRATE] =
"Audio L2 Bitrate";
control_description[V4L2_CID_MPEG_VIDEO_BITRATE_PEAK] =
"Video Peak Bitrate";
control_description[V4L2_CID_MPEG_VIDEO_BITRATE] =
"Video Average Bitrate";
control_description[V4L2_CID_MPEG_STREAM_TYPE] =
"MPEG Stream type";
control_description[V4L2_CID_MPEG_VIDEO_BITRATE_MODE] =
"MPEG Bitrate mode";
}
control_description_lock.unlock();
for (uint i = 0; i < ext_ctrls.size(); i++)
{
struct v4l2_ext_controls ctrls;
memset(&ctrls, 0, sizeof(struct v4l2_ext_controls));
int value = ext_ctrls[i].value;
ctrls.ctrl_class = V4L2_CTRL_CLASS_MPEG;
ctrls.count = 1;
ctrls.controls = &ext_ctrls[i];
if (ioctl(fd, VIDIOC_S_EXT_CTRLS, &ctrls) < 0)
{
QMutexLocker locker(&control_description_lock);
LOG(VB_GENERAL, LOG_ERR, QString("mpegrecorder.cpp:set_ctrls(): ") +
QString("Could not set %1 to %2")
.arg(control_description[ext_ctrls[i].id]).arg(value) +
ENO);
}
}
}
bool MpegRecorder::SetV4L2DeviceOptions(int chanfd)
{
vector<struct v4l2_ext_control> ext_ctrls;
// Set controls
if (driver != "hdpvr")
{
if (driver.left(7) != "saa7164")
{
add_ext_ctrl(ext_ctrls, V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ,
GetFilteredAudioSampleRate());
uint audio_layer = GetFilteredAudioLayer();
add_ext_ctrl(ext_ctrls, V4L2_CID_MPEG_AUDIO_ENCODING,
audio_layer - 1);
uint audbitrate = GetFilteredAudioBitRate(audio_layer);
add_ext_ctrl(ext_ctrls, V4L2_CID_MPEG_AUDIO_L2_BITRATE,
audbitrate - 1);
}
add_ext_ctrl(ext_ctrls, V4L2_CID_MPEG_VIDEO_ASPECT,
aspectratio - 1);
add_ext_ctrl(ext_ctrls, V4L2_CID_MPEG_STREAM_TYPE,
streamtype_ivtv_to_v4l2(GetFilteredStreamType()));
}
else
{
maxbitrate = high_mpeg4peakbitrate;
bitrate = high_mpeg4avgbitrate;
}
maxbitrate = std::max(maxbitrate, bitrate);
if (driver == "hdpvr" || driver.left(7) == "saa7164")
{
add_ext_ctrl(ext_ctrls, V4L2_CID_MPEG_VIDEO_BITRATE_MODE,
(maxbitrate == bitrate) ?
V4L2_MPEG_VIDEO_BITRATE_MODE_CBR :
V4L2_MPEG_VIDEO_BITRATE_MODE_VBR);
}
add_ext_ctrl(ext_ctrls, V4L2_CID_MPEG_VIDEO_BITRATE,
bitrate * 1000);
add_ext_ctrl(ext_ctrls, V4L2_CID_MPEG_VIDEO_BITRATE_PEAK,
maxbitrate * 1000);
set_ctrls(chanfd, ext_ctrls);
bool ok;
int audioinput = audiodevice.toUInt(&ok);
if (ok)
{
struct v4l2_audio ain;
memset(&ain, 0, sizeof(ain));
ain.index = audioinput;
if (ioctl(chanfd, VIDIOC_ENUMAUDIO, &ain) < 0)
{
LOG(VB_GENERAL, LOG_WARNING, LOC + "Unable to get audio input.");
}
else
{
ain.index = audioinput;
if (ioctl(chanfd, VIDIOC_S_AUDIO, &ain) < 0)
{
LOG(VB_GENERAL, LOG_WARNING,
LOC + "Unable to set audio input.");
}
}
}
// query supported audio codecs if spdif is not used
if (driver == "hdpvr" && audioinput != 2)
{
struct v4l2_queryctrl qctrl;
qctrl.id = V4L2_CID_MPEG_AUDIO_ENCODING;
if (!ioctl(chanfd, VIDIOC_QUERYCTRL, &qctrl))
{
uint audio_enc = max(min(audtype-1, qctrl.maximum), qctrl.minimum);
add_ext_ctrl(ext_ctrls, V4L2_CID_MPEG_AUDIO_ENCODING, audio_enc);
}
else
{
LOG(VB_GENERAL, LOG_WARNING, LOC +
"Unable to get supported audio codecs." + ENO);
}
}
return true;
}
bool MpegRecorder::SetVBIOptions(int chanfd)
{
if (VBIMode::None == vbimode)
return true;
if (driver == "hdpvr")
return true;
#ifdef V4L2_CAP_SLICED_VBI_CAPTURE
if (supports_sliced_vbi)
{
struct v4l2_format vbifmt;
memset(&vbifmt, 0, sizeof(struct v4l2_format));
vbifmt.type = V4L2_BUF_TYPE_SLICED_VBI_CAPTURE;
vbifmt.fmt.sliced.service_set |= (VBIMode::PAL_TT == vbimode) ?
V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525;
if (ioctl(chanfd, VIDIOC_S_FMT, &vbifmt) < 0)
{
LOG(VB_GENERAL, LOG_WARNING, LOC +
"Unable to enable VBI embedding" + ENO);
}
else if (ioctl(chanfd, VIDIOC_G_FMT, &vbifmt) >= 0)
{
LOG(VB_RECORD, LOG_INFO,
LOC + QString("VBI service: %1, io size: %2")
.arg(vbifmt.fmt.sliced.service_set)
.arg(vbifmt.fmt.sliced.io_size));
struct v4l2_ext_control vbi_ctrl;
vbi_ctrl.id = V4L2_CID_MPEG_STREAM_VBI_FMT;
vbi_ctrl.value = V4L2_MPEG_STREAM_VBI_FMT_IVTV;
struct v4l2_ext_controls ctrls;
memset(&ctrls, 0, sizeof(struct v4l2_ext_controls));
ctrls.ctrl_class = V4L2_CTRL_CLASS_MPEG;
ctrls.count = 1;
ctrls.controls = &vbi_ctrl;
if (ioctl(chanfd, VIDIOC_S_EXT_CTRLS, &ctrls) < 0)
{
LOG(VB_GENERAL, LOG_WARNING, LOC +
"Unable to set VBI embedding format" + ENO);
}
else
{
return true;
}
}
}
#endif // V4L2_CAP_SLICED_VBI_CAPTURE
return OpenVBIDevice() >= 0;
}
bool MpegRecorder::Open(void)
{
ResetForNewFile();
return (deviceIsMpegFile) ? OpenMpegFileAsInput() : OpenV4L2DeviceAsInput();
}
void MpegRecorder::run(void)
{
if (!Open())
{
if (_error.isEmpty())
_error = "Failed to open V4L device";
return;
}
bool has_select = true;
#if defined(__FreeBSD__)
// HACK. FreeBSD PVR150/500 driver doesn't currently support select()
has_select = false;
#endif
if (driver == "hdpvr")
{
int progNum = 1;
MPEGStreamData *sd = new MPEGStreamData(progNum, true);
sd->SetRecordingType(_recording_type);
SetStreamData(sd);
_stream_data->AddAVListener(this);
_stream_data->AddWritingListener(this);
// Make sure the first things in the file are a PAT & PMT
_wait_for_keyframe_option = false;
HandleSingleProgramPAT(_stream_data->PATSingleProgram());
HandleSingleProgramPMT(_stream_data->PMTSingleProgram());
_wait_for_keyframe_option = true;
}
{
QMutexLocker locker(&pauseLock);
request_recording = true;
request_helper = true;
recording = true;
recordingWait.wakeAll();
}
unsigned char *buffer = new unsigned char[bufferSize + 1];
int len;
int remainder = 0;
MythTimer elapsedTimer;
float elapsed;
long long bytesRead = 0;
int dummyBPS = 0; // Bytes per second, but env var is BITS PER SECOND
if (getenv("DUMMYBPS"))
{
dummyBPS = atoi(getenv("DUMMYBPS")) / 8;
LOG(VB_GENERAL, LOG_INFO,
LOC + QString("Throttling dummy recorder to %1 bits per second")
.arg(dummyBPS * 8));
}
struct timeval tv;
fd_set rdset;
if (deviceIsMpegFile)
elapsedTimer.start();
else if (_device_read_buffer)
{
LOG(VB_RECORD, LOG_INFO, LOC + "Initial startup of recorder");
StartEncoding();
}
QByteArray vdevice = videodevice.toAscii();
while (IsRecordingRequested() && !IsErrored())
{
if (PauseAndWait(100))
continue;
if (deviceIsMpegFile)
{
if (dummyBPS && bytesRead)
{
elapsed = (elapsedTimer.elapsed() / 1000.0) + 1;
while ((bytesRead / elapsed) > dummyBPS)
{
usleep(50000);
elapsed = (elapsedTimer.elapsed() / 1000.0) + 1;
}
}
else if (GetFramesWritten())
{
elapsed = (elapsedTimer.elapsed() / 1000.0) + 1;
while ((GetFramesWritten() / elapsed) > 30)
{
usleep(50000);
elapsed = (elapsedTimer.elapsed() / 1000.0) + 1;
}
}