frodovdr/vdr
1
0
Fork 0
mirror of https://github.com/vdr-projects/vdr.git synced 2025-03-01 10:50:46 +00:00
Code Issues Packages Projects Releases Wiki Activity
vdr/dvbdevice.c
Klaus Schmidinger af483c11ae Version 1.3.13 
- Fixed checking for the presence of NPTL (thanks to Jouni Karvo).
- Making sure section filters are only set if the device actually has a lock
  (thanks to Andreas Share for pointing this out).
- Fixed a possible NULL pointer assignment in cMenuText::SetText() (thanks to
  Marco Schlüssler).
- Fixed a crash in case the last line in channels.conf is a group separator and
  that group is selected in the channel display (thanks to Dick Streefland).
- Added cRingBufferLinear::Read() to read directly from a file handle into the
  ring buffer.
- Using timeouts in ring buffers to avoid 'usleep()'.
- Clearing the 'Transfer Mode' ring buffer after clearing the device to avoid
  an "almost full" ring buffer.
- Removed locking from cRingBufferLinear for better performance under high load.
- Using a cRingBufferLinear in cRemux to avoid unnecessary copying of data.
- Using a cRingBufferLinear in cTSBuffer and filling it in a separate thread
  to avoid buffer overflows. Plugins using cTSBuffer will need to remove the
  call to the now obsolete Read() function (see cDvbDevice::GetTSPacket() for
  the new usage of cTSBuffer).
- cRemux::Process() has been split into Put(), Get() and Del() to allow for a
  better decoupling of the remuxing and disk writing process. Plugins using
  cRemux will need to be modified accordingly.
- The actual disk writing in recordings is now done in a separate thread to
  improve the overall throughput.
- Changed cRemux so that it returns the maximum available amount of data with
  each call, not just 2048 byte.
- Added a visual display of all cRingBufferLinear buffers for debugging. To
  activate it, define DEBUGRINGBUFFERS in ringbuffer.h.
- Instead of cCondVar now using the new cCondWait (which also avoids a possible
  "near miss" condition; thanks to Sascha Volkenandt for pointing out this one).
  cCondVar is still present for plugins that use it (and VDR itself also still
  uses it in cRemote).
- The cRingBuffer now does EnableGet()/EnablePut() only if the buffer is more than
  one third full or empty, respectively. This dramatically improves recording
  performance and reduces system load (thanks to Marco Schlüßler for doing some
  testing regarding buffer performance and giving me some hints that finally led
  to finding out that this was the basic problem causing buffer overflows).
- Improved Transfer Mode (thanks to Marco Schlüßler for suggestions and testing).
- Fixed a possible crash with inconsistent SI data (thanks to Marcel Wiesweg).
- Fixed showing the replay mode if the OSD is currently in use (thanks to Kimmo
  Tykkala for pointing out this problem).
- cOsdProvider::NewOsd() now always returns a valid pointer, even if the OSD is
  currently in use (it will then return a dummy cOsd object and write a message to
  the log file).
- Added Estonian language texts (thanks to Arthur Konovalov).
- Fixed 'newplugin' and libsi/Makefile to use the compiler defined in $(CXX) for
  generating file dependencies (thanks to Andreas Brachold).
- Moved the initialization of aPid1 and aPid2 to the beginning of cDvbDevice::cDvbDevice()
  to have them set in case a patch references them (thanks to Wayne Keer for pointing
  this out).
- Completed the Russian OSD texts (thanks to Vyacheslav Dikonov).
- Avoiding unnecessary section filter start/stops (thanks to Marco Schlüßler).
- Made the "Channel not available!" message and mtInfo instead of mtError (suggested
  by Wayne Keer).
- Made volume control more linear (thanks to Emil Naepflein and Udo Richter).
- Now skipping code table info in SI data (suggested by Milos Kapoun).
- Added missing Czech characters to fontosd-iso8859-2.c (thanks to Milos Kapoun).
- Fixed a crash in the time search mechanism (reported by Reinhard Nissl).
- If one PID can't be added, the whole cDevice::AttachReceiver() will now fail
  and all PIDs added so far will be deleted (thanks to Marco Schlüßler for
  pointing out this one).
- Now only saving channels.conf after a modification made by the user (avoids
  lots of disk access due to automatic channel updates). Automatic channel
  modifications will be saved every 10 minutes if no recording is currently
  active.
- Removed the 'Log' parameter from the cChannel::Set... functions. Instead
  checking if the channel has a non-zero number.
- Updated 'channels.conf.terr' for Hannover (thanks to Sven Kreiensen).
2004-10-17 18:00:00 +02:00

1119 lines
37 KiB
C
Raw Blame History

/*
* dvbdevice.c: The DVB device interface
*
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: dvbdevice.c 1.97 2004/10/17 09:10:43 kls Exp $
*/
#include "dvbdevice.h"
#include <errno.h>
extern "C" {
#ifdef boolean
#define HAVE_BOOLEAN
#endif
#include <jpeglib.h>
#undef boolean
}
#include <limits.h>
#include <linux/videodev.h>
#include <linux/dvb/audio.h>
#include <linux/dvb/dmx.h>
#include <linux/dvb/frontend.h>
#include <linux/dvb/video.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include "channels.h"
#include "diseqc.h"
#include "dvbosd.h"
#include "eitscan.h"
#include "player.h"
#include "receiver.h"
#include "status.h"
#include "transfer.h"
#define DO_REC_AND_PLAY_ON_PRIMARY_DEVICE 1
#define DO_MULTIPLE_RECORDINGS 1
//#define WAIT_FOR_LOCK_AFTER_TUNING 1
#define DEV_VIDEO "/dev/video"
#define DEV_DVB_ADAPTER "/dev/dvb/adapter"
#define DEV_DVB_OSD "osd"
#define DEV_DVB_FRONTEND "frontend"
#define DEV_DVB_DVR "dvr"
#define DEV_DVB_DEMUX "demux"
#define DEV_DVB_VIDEO "video"
#define DEV_DVB_AUDIO "audio"
#define DEV_DVB_CA "ca"
static const char *DvbName(const char *Name, int n)
{
static char buffer[PATH_MAX];
snprintf(buffer, sizeof(buffer), "%s%d/%s%d", DEV_DVB_ADAPTER, n, Name, 0);
return buffer;
}
static int DvbOpen(const char *Name, int n, int Mode, bool ReportError = false)
{
const char *FileName = DvbName(Name, n);
int fd = open(FileName, Mode);
if (fd < 0 && ReportError)
LOG_ERROR_STR(FileName);
return fd;
}
// --- cDvbTuner -------------------------------------------------------------
class cDvbTuner : public cThread {
private:
enum eTunerStatus { tsIdle, tsSet, tsTuned, tsLocked, tsCam };
int fd_frontend;
int cardIndex;
fe_type_t frontendType;
cCiHandler *ciHandler;
cChannel channel;
const char *diseqcCommands;
bool active;
bool useCa;
time_t startTime;
eTunerStatus tunerStatus;
cCondWait newSet;
bool SetFrontend(void);
virtual void Action(void);
public:
cDvbTuner(int Fd_Frontend, int CardIndex, fe_type_t FrontendType, cCiHandler *CiHandler);
virtual ~cDvbTuner();
bool IsTunedTo(const cChannel *Channel) const;
void Set(const cChannel *Channel, bool Tune, bool UseCa);
bool Locked(void) { return tunerStatus >= tsLocked; }
};
cDvbTuner::cDvbTuner(int Fd_Frontend, int CardIndex, fe_type_t FrontendType, cCiHandler *CiHandler)
{
fd_frontend = Fd_Frontend;
cardIndex = CardIndex;
frontendType = FrontendType;
ciHandler = CiHandler;
diseqcCommands = NULL;
active = false;
useCa = false;
tunerStatus = tsIdle;
startTime = time(NULL);
if (frontendType == FE_QPSK)
CHECK(ioctl(fd_frontend, FE_SET_VOLTAGE, SEC_VOLTAGE_13)); // must explicitly turn on LNB power
SetDescription("tuner on device %d", cardIndex + 1);
Start();
}
cDvbTuner::~cDvbTuner()
{
active = false;
tunerStatus = tsIdle;
newSet.Signal();
Cancel(3);
}
bool cDvbTuner::IsTunedTo(const cChannel *Channel) const
{
return tunerStatus != tsIdle && channel.Source() == Channel->Source() && channel.Transponder() == Channel->Transponder();
}
void cDvbTuner::Set(const cChannel *Channel, bool Tune, bool UseCa)
{
Lock();
if (Tune)
tunerStatus = tsSet;
else if (tunerStatus == tsCam)
tunerStatus = tsTuned;
useCa = UseCa;
if (Channel->Ca() && tunerStatus != tsCam)
startTime = time(NULL);
channel = *Channel;
Unlock();
newSet.Signal();
}
static unsigned int FrequencyToHz(unsigned int f)
{
while (f && f < 1000000)
f *= 1000;
return f;
}
bool cDvbTuner::SetFrontend(void)
{
dvb_frontend_parameters Frontend;
memset(&Frontend, 0, sizeof(Frontend));
switch (frontendType) {
case FE_QPSK: { // DVB-S
unsigned int frequency = channel.Frequency();
if (Setup.DiSEqC) {
cDiseqc *diseqc = Diseqcs.Get(channel.Source(), channel.Frequency(), channel.Polarization());
if (diseqc) {
if (diseqc->Commands() && (!diseqcCommands || strcmp(diseqcCommands, diseqc->Commands()) != 0)) {
cDiseqc::eDiseqcActions da;
for (char *CurrentAction = NULL; (da = diseqc->Execute(&CurrentAction)) != cDiseqc::daNone; ) {
switch (da) {
case cDiseqc::daNone: break;
case cDiseqc::daToneOff: CHECK(ioctl(fd_frontend, FE_SET_TONE, SEC_TONE_OFF)); break;
case cDiseqc::daToneOn: CHECK(ioctl(fd_frontend, FE_SET_TONE, SEC_TONE_ON)); break;
case cDiseqc::daVoltage13: CHECK(ioctl(fd_frontend, FE_SET_VOLTAGE, SEC_VOLTAGE_13)); break;
case cDiseqc::daVoltage18: CHECK(ioctl(fd_frontend, FE_SET_VOLTAGE, SEC_VOLTAGE_18)); break;
case cDiseqc::daMiniA: CHECK(ioctl(fd_frontend, FE_DISEQC_SEND_BURST, SEC_MINI_A)); break;
case cDiseqc::daMiniB: CHECK(ioctl(fd_frontend, FE_DISEQC_SEND_BURST, SEC_MINI_B)); break;
case cDiseqc::daCodes: {
int n = 0;
uchar *codes = diseqc->Codes(n);
if (codes) {
struct dvb_diseqc_master_cmd cmd;
memcpy(cmd.msg, codes, min(n, int(sizeof(cmd.msg))));
cmd.msg_len = n;
CHECK(ioctl(fd_frontend, FE_DISEQC_SEND_MASTER_CMD, &cmd));
}
}
break;
}
}
diseqcCommands = diseqc->Commands();
}
frequency -= diseqc->Lof();
}
else {
esyslog("ERROR: no DiSEqC parameters found for channel %d", channel.Number());
return false;
}
}
else {
int tone = SEC_TONE_OFF;
if (frequency < (unsigned int)Setup.LnbSLOF) {
frequency -= Setup.LnbFrequLo;
tone = SEC_TONE_OFF;
}
else {
frequency -= Setup.LnbFrequHi;
tone = SEC_TONE_ON;
}
int volt = (channel.Polarization() == 'v' || channel.Polarization() == 'V') ? SEC_VOLTAGE_13 : SEC_VOLTAGE_18;
CHECK(ioctl(fd_frontend, FE_SET_VOLTAGE, volt));
CHECK(ioctl(fd_frontend, FE_SET_TONE, tone));
}
frequency = abs(frequency); // Allow for C-band, where the frequency is less than the LOF
Frontend.frequency = frequency * 1000UL;
Frontend.inversion = fe_spectral_inversion_t(channel.Inversion());
Frontend.u.qpsk.symbol_rate = channel.Srate() * 1000UL;
Frontend.u.qpsk.fec_inner = fe_code_rate_t(channel.CoderateH());
}
break;
case FE_QAM: { // DVB-C
// Frequency and symbol rate:
Frontend.frequency = FrequencyToHz(channel.Frequency());
Frontend.inversion = fe_spectral_inversion_t(channel.Inversion());
Frontend.u.qam.symbol_rate = channel.Srate() * 1000UL;
Frontend.u.qam.fec_inner = fe_code_rate_t(channel.CoderateH());
Frontend.u.qam.modulation = fe_modulation_t(channel.Modulation());
}
break;
case FE_OFDM: { // DVB-T
// Frequency and OFDM paramaters:
Frontend.frequency = FrequencyToHz(channel.Frequency());
Frontend.inversion = fe_spectral_inversion_t(channel.Inversion());
Frontend.u.ofdm.bandwidth = fe_bandwidth_t(channel.Bandwidth());
Frontend.u.ofdm.code_rate_HP = fe_code_rate_t(channel.CoderateH());
Frontend.u.ofdm.code_rate_LP = fe_code_rate_t(channel.CoderateL());
Frontend.u.ofdm.constellation = fe_modulation_t(channel.Modulation());
Frontend.u.ofdm.transmission_mode = fe_transmit_mode_t(channel.Transmission());
Frontend.u.ofdm.guard_interval = fe_guard_interval_t(channel.Guard());
Frontend.u.ofdm.hierarchy_information = fe_hierarchy_t(channel.Hierarchy());
}
break;
default:
esyslog("ERROR: attempt to set channel with unknown DVB frontend type");
return false;
}
if (ioctl(fd_frontend, FE_SET_FRONTEND, &Frontend) < 0) {
esyslog("ERROR: frontend %d: %m", cardIndex);
return false;
}
return true;
}
void cDvbTuner::Action(void)
{
active = true;
while (active) {
Lock();
if (tunerStatus == tsSet)
tunerStatus = SetFrontend() ? tsTuned : tsIdle;
if (tunerStatus == tsTuned) {
fe_status_t status = fe_status_t(0);
CHECK(ioctl(fd_frontend, FE_READ_STATUS, &status));
if (status & FE_HAS_LOCK)
tunerStatus = tsLocked;
}
if (tunerStatus != tsIdle) {
dvb_frontend_event event;
if (ioctl(fd_frontend, FE_GET_EVENT, &event) == 0) {
if (event.status & FE_REINIT) {
tunerStatus = tsSet;
esyslog("ERROR: frontend %d was reinitialized - re-tuning", cardIndex);
}
}
}
if (ciHandler) {
if (ciHandler->Process() && useCa) {
if (tunerStatus == tsLocked) {
for (int Slot = 0; Slot < ciHandler->NumSlots(); Slot++) {
cCiCaPmt CaPmt(channel.Source(), channel.Transponder(), channel.Sid(), ciHandler->GetCaSystemIds(Slot));
if (CaPmt.Valid()) {
CaPmt.AddPid(channel.Vpid(), 2);
CaPmt.AddPid(channel.Apid1(), 4);
CaPmt.AddPid(channel.Apid2(), 4);
CaPmt.AddPid(channel.Dpid1(), 0);
if (ciHandler->SetCaPmt(CaPmt, Slot)) {
tunerStatus = tsCam;
startTime = 0;
}
}
}
}
}
else if (tunerStatus > tsLocked)
tunerStatus = tsLocked;
}
Unlock();
// in the beginning we loop more often to let the CAM connection start up fast
newSet.Wait((ciHandler && (time(NULL) - startTime < 20)) ? 100 : 1000);
}
}
// --- cDvbDevice ------------------------------------------------------------
int cDvbDevice::devVideoOffset = -1;
cDvbDevice::cDvbDevice(int n)
{
dvbTuner = NULL;
frontendType = fe_type_t(-1); // don't know how else to initialize this - there is no FE_UNKNOWN
spuDecoder = NULL;
playMode = pmNone;
aPid1 = aPid2 = 0;
// Devices that are present on all card types:
int fd_frontend = DvbOpen(DEV_DVB_FRONTEND, n, O_RDWR | O_NONBLOCK);
// Devices that are only present on cards with decoders:
fd_osd = DvbOpen(DEV_DVB_OSD, n, O_RDWR);
fd_video = DvbOpen(DEV_DVB_VIDEO, n, O_RDWR | O_NONBLOCK);
fd_audio = DvbOpen(DEV_DVB_AUDIO, n, O_RDWR | O_NONBLOCK);
fd_stc = DvbOpen(DEV_DVB_DEMUX, n, O_RDWR);
// The DVR device (will be opened and closed as needed):
fd_dvr = -1;
// The offset of the /dev/video devices:
if (devVideoOffset < 0) { // the first one checks this
FILE *f = NULL;
char buffer[PATH_MAX];
for (int ofs = 0; ofs < 100; ofs++) {
snprintf(buffer, sizeof(buffer), "/proc/video/dev/video%d", ofs);
if ((f = fopen(buffer, "r")) != NULL) {
if (fgets(buffer, sizeof(buffer), f)) {
if (strstr(buffer, "DVB Board")) { // found the _first_ DVB card
devVideoOffset = ofs;
dsyslog("video device offset is %d", devVideoOffset);
break;
}
}
else
break;
fclose(f);
}
else
break;
}
if (devVideoOffset < 0)
devVideoOffset = 0;
if (f)
fclose(f);
}
devVideoIndex = (devVideoOffset >= 0 && HasDecoder()) ? devVideoOffset++ : -1;
// Video format:
SetVideoFormat(Setup.VideoFormat ? VIDEO_FORMAT_16_9 : VIDEO_FORMAT_4_3);
// We only check the devices that must be present - the others will be checked before accessing them://XXX
if (fd_frontend >= 0) {
dvb_frontend_info feinfo;
if (ioctl(fd_frontend, FE_GET_INFO, &feinfo) >= 0) {
frontendType = feinfo.type;
ciHandler = cCiHandler::CreateCiHandler(DvbName(DEV_DVB_CA, n));
dvbTuner = new cDvbTuner(fd_frontend, CardIndex(), frontendType, ciHandler);
}
else
LOG_ERROR;
}
else
esyslog("ERROR: can't open DVB device %d", n);
StartSectionHandler();
}
cDvbDevice::~cDvbDevice()
{
delete spuDecoder;
delete dvbTuner;
// We're not explicitly closing any device files here, since this sometimes
// caused segfaults. Besides, the program is about to terminate anyway...
}
bool cDvbDevice::Probe(const char *FileName)
{
if (access(FileName, F_OK) == 0) {
dsyslog("probing %s", FileName);
int f = open(FileName, O_RDONLY);
if (f >= 0) {
close(f);
return true;
}
else if (errno != ENODEV && errno != EINVAL)
LOG_ERROR_STR(FileName);
}
else if (errno != ENOENT)
LOG_ERROR_STR(FileName);
return false;
}
bool cDvbDevice::Initialize(void)
{
int found = 0;
int i;
for (i = 0; i < MAXDVBDEVICES; i++) {
if (UseDevice(NextCardIndex())) {
if (Probe(DvbName(DEV_DVB_FRONTEND, i))) {
new cDvbDevice(i);
found++;
}
else
break;
}
else
NextCardIndex(1); // skips this one
}
NextCardIndex(MAXDVBDEVICES - i); // skips the rest
if (found > 0)
isyslog("found %d video device%s", found, found > 1 ? "s" : "");
else
isyslog("no DVB device found");
return found > 0;
}
void cDvbDevice::MakePrimaryDevice(bool On)
{
if (HasDecoder())
new cDvbOsdProvider(fd_osd);
}
bool cDvbDevice::HasDecoder(void) const
{
return fd_video >= 0 && fd_audio >= 0;
}
int cDvbDevice::ProvidesCa(const cChannel *Channel) const
{
if (Channel->Ca() >= 0x0100 && ciHandler) {
unsigned short ids[MAXCAIDS + 1];
for (int i = 0; i <= MAXCAIDS; i++) // '<=' copies the terminating 0!
ids[i] = Channel->Ca(i);
return ciHandler->ProvidesCa(ids);
}
return cDevice::ProvidesCa(Channel);
}
cSpuDecoder *cDvbDevice::GetSpuDecoder(void)
{
if (!spuDecoder && IsPrimaryDevice())
spuDecoder = new cDvbSpuDecoder();
return spuDecoder;
}
bool cDvbDevice::GrabImage(const char *FileName, bool Jpeg, int Quality, int SizeX, int SizeY)
{
if (devVideoIndex < 0)
return false;
char buffer[PATH_MAX];
snprintf(buffer, sizeof(buffer), "%s%d", DEV_VIDEO, devVideoIndex);
int videoDev = open(buffer, O_RDWR);
if (videoDev < 0)
LOG_ERROR_STR(buffer);
if (videoDev >= 0) {
int result = 0;
struct video_mbuf mbuf;
result |= ioctl(videoDev, VIDIOCGMBUF, &mbuf);
if (result == 0) {
int msize = mbuf.size;
unsigned char *mem = (unsigned char *)mmap(0, msize, PROT_READ | PROT_WRITE, MAP_SHARED, videoDev, 0);
if (mem && mem != (unsigned char *)-1) {
// set up the size and RGB
struct video_capability vc;
result |= ioctl(videoDev, VIDIOCGCAP, &vc);
struct video_mmap vm;
vm.frame = 0;
if ((SizeX > 0) && (SizeX <= vc.maxwidth) &&
(SizeY > 0) && (SizeY <= vc.maxheight)) {
vm.width = SizeX;
vm.height = SizeY;
}
else {
vm.width = vc.maxwidth;
vm.height = vc.maxheight;
}
vm.format = VIDEO_PALETTE_RGB24;
result |= ioctl(videoDev, VIDIOCMCAPTURE, &vm);
result |= ioctl(videoDev, VIDIOCSYNC, &vm.frame);
// make RGB out of BGR:
int memsize = vm.width * vm.height;
unsigned char *mem1 = mem;
for (int i = 0; i < memsize; i++) {
unsigned char tmp = mem1[2];
mem1[2] = mem1[0];
mem1[0] = tmp;
mem1 += 3;
}
if (Quality < 0)
Quality = 255; //XXX is this 'best'???
isyslog("grabbing to %s (%s %d %d %d)", FileName, Jpeg ? "JPEG" : "PNM", Quality, vm.width, vm.height);
FILE *f = fopen(FileName, "wb");
if (f) {
if (Jpeg) {
// write JPEG file:
struct jpeg_compress_struct cinfo;
struct jpeg_error_mgr jerr;
cinfo.err = jpeg_std_error(&jerr);
jpeg_create_compress(&cinfo);
jpeg_stdio_dest(&cinfo, f);
cinfo.image_width = vm.width;
cinfo.image_height = vm.height;
cinfo.input_components = 3;
cinfo.in_color_space = JCS_RGB;
jpeg_set_defaults(&cinfo);
jpeg_set_quality(&cinfo, Quality, true);
jpeg_start_compress(&cinfo, true);
int rs = vm.width * 3;
JSAMPROW rp[vm.height];
for (int k = 0; k < vm.height; k++)
rp[k] = &mem[rs * k];
jpeg_write_scanlines(&cinfo, rp, vm.height);
jpeg_finish_compress(&cinfo);
jpeg_destroy_compress(&cinfo);
}
else {
// write PNM file:
if (fprintf(f, "P6\n%d\n%d\n255\n", vm.width, vm.height) < 0 ||
fwrite(mem, vm.width * vm.height * 3, 1, f) < 0) {
LOG_ERROR_STR(FileName);
result |= 1;
}
}
fclose(f);
}
else {
LOG_ERROR_STR(FileName);
result |= 1;
}
munmap(mem, msize);
}
else
result |= 1;
}
close(videoDev);
return result == 0;
}
return false;
}
void cDvbDevice::SetVideoFormat(bool VideoFormat16_9)
{
if (HasDecoder())
CHECK(ioctl(fd_video, VIDEO_SET_FORMAT, VideoFormat16_9 ? VIDEO_FORMAT_16_9 : VIDEO_FORMAT_4_3));
}
eVideoSystem cDvbDevice::GetVideoSystem(void)
{
eVideoSystem VideoSystem = vsPAL;
video_size_t vs;
if (ioctl(fd_video, VIDEO_GET_SIZE, &vs) == 0) {
if (vs.h == 480 || vs.h == 240)
VideoSystem = vsNTSC;
}
else
LOG_ERROR;
return VideoSystem;
}
// ptAudio ptVideo ptPcr ptTeletext ptDolby ptOther
dmx_pes_type_t PesTypes[] = { DMX_PES_AUDIO, DMX_PES_VIDEO, DMX_PES_PCR, DMX_PES_TELETEXT, DMX_PES_OTHER, DMX_PES_OTHER };
bool cDvbDevice::SetPid(cPidHandle *Handle, int Type, bool On)
{
if (Handle->pid) {
dmx_pes_filter_params pesFilterParams;
memset(&pesFilterParams, 0, sizeof(pesFilterParams));
if (On) {
if (Handle->handle < 0) {
Handle->handle = DvbOpen(DEV_DVB_DEMUX, CardIndex(), O_RDWR | O_NONBLOCK, true);
if (Handle->handle < 0)
return false;
}
pesFilterParams.pid = Handle->pid;
pesFilterParams.input = DMX_IN_FRONTEND;
pesFilterParams.output = (Type <= ptTeletext && Handle->used <= 1) ? DMX_OUT_DECODER : DMX_OUT_TS_TAP;
pesFilterParams.pes_type= PesTypes[Type < ptOther ? Type : ptOther];
pesFilterParams.flags = DMX_IMMEDIATE_START;
if (ioctl(Handle->handle, DMX_SET_PES_FILTER, &pesFilterParams) < 0) {
LOG_ERROR;
return false;
}
}
else if (!Handle->used) {
CHECK(ioctl(Handle->handle, DMX_STOP));
if (Type <= ptTeletext) {
pesFilterParams.pid = 0x1FFF;
pesFilterParams.input = DMX_IN_FRONTEND;
pesFilterParams.output = DMX_OUT_DECODER;
pesFilterParams.pes_type= PesTypes[Type];
pesFilterParams.flags = DMX_IMMEDIATE_START;
CHECK(ioctl(Handle->handle, DMX_SET_PES_FILTER, &pesFilterParams));
if (PesTypes[Type] == DMX_PES_VIDEO) // let's only do this once
SetPlayMode(pmNone); // necessary to switch a PID from DMX_PES_VIDEO/AUDIO to DMX_PES_OTHER
}
close(Handle->handle);
Handle->handle = -1;
}
}
return true;
}
int cDvbDevice::OpenFilter(u_short Pid, u_char Tid, u_char Mask)
{
const char *FileName = DvbName(DEV_DVB_DEMUX, CardIndex());
int f = open(FileName, O_RDWR | O_NONBLOCK);
if (f >= 0) {
dmx_sct_filter_params sctFilterParams;
memset(&sctFilterParams, 0, sizeof(sctFilterParams));
sctFilterParams.pid = Pid;
sctFilterParams.timeout = 0;
sctFilterParams.flags = DMX_IMMEDIATE_START;
sctFilterParams.filter.filter[0] = Tid;
sctFilterParams.filter.mask[0] = Mask;
if (ioctl(f, DMX_SET_FILTER, &sctFilterParams) >= 0)
return f;
else {
esyslog("ERROR: can't set filter (pid=%d, tid=%02X, mask=%02X): %m", Pid, Tid, Mask);
close(f);
}
}
else
esyslog("ERROR: can't open filter handle on '%s'", FileName);
return -1;
}
void cDvbDevice::TurnOffLiveMode(void)
{
// Avoid noise while switching:
CHECK(ioctl(fd_audio, AUDIO_SET_MUTE, true));
CHECK(ioctl(fd_video, VIDEO_SET_BLANK, true));
CHECK(ioctl(fd_audio, AUDIO_CLEAR_BUFFER));
CHECK(ioctl(fd_video, VIDEO_CLEAR_BUFFER));
// Turn off live PIDs:
DelPid(pidHandles[ptAudio].pid);
DelPid(pidHandles[ptVideo].pid);
DelPid(pidHandles[ptPcr].pid, ptPcr);
DelPid(pidHandles[ptTeletext].pid);
DelPid(pidHandles[ptDolby].pid);
}
bool cDvbDevice::ProvidesSource(int Source) const
{
int type = Source & cSource::st_Mask;
return type == cSource::stNone
|| type == cSource::stCable && frontendType == FE_QAM
|| type == cSource::stSat && frontendType == FE_QPSK
|| type == cSource::stTerr && frontendType == FE_OFDM;
return true;
}
bool cDvbDevice::ProvidesTransponder(const cChannel *Channel) const
{
return ProvidesSource(Channel->Source()) && ((Channel->Source() & cSource::st_Mask) != cSource::stSat || Diseqcs.Get(Channel->Source(), Channel->Frequency(), Channel->Polarization()));
}
bool cDvbDevice::ProvidesChannel(const cChannel *Channel, int Priority, bool *NeedsDetachReceivers) const
{
bool result = false;
bool hasPriority = Priority < 0 || Priority > this->Priority();
bool needsDetachReceivers = false;
if (ProvidesSource(Channel->Source()) && ProvidesCa(Channel)) {
result = hasPriority;
if (Priority >= 0 && Receiving(true)) {
if (dvbTuner->IsTunedTo(Channel)) {
if (Channel->Vpid() && !HasPid(Channel->Vpid()) || Channel->Apid1() && !HasPid(Channel->Apid1())) {
#ifdef DO_MULTIPLE_RECORDINGS
if (Ca() > CACONFBASE || Channel->Ca() > CACONFBASE)
needsDetachReceivers = !ciHandler // only LL-firmware can do non-live CA channels
|| Ca() != Channel->Ca();
else if (!IsPrimaryDevice())
result = true;
#ifdef DO_REC_AND_PLAY_ON_PRIMARY_DEVICE
else
result = Priority >= Setup.PrimaryLimit;
#endif
#endif
}
else
result = !IsPrimaryDevice() || Priority >= Setup.PrimaryLimit;
}
else
needsDetachReceivers = true;
}
}
if (NeedsDetachReceivers)
*NeedsDetachReceivers = needsDetachReceivers;
return result;
}
bool cDvbDevice::SetChannelDevice(const cChannel *Channel, bool LiveView)
{
bool IsEncrypted = Channel->Ca() > CACONFBASE && !ciHandler; // only LL-firmware can do non-live CA channels
bool DoTune = !dvbTuner->IsTunedTo(Channel);
bool TurnOffLivePIDs = HasDecoder()
&& (DoTune
|| IsEncrypted && pidHandles[ptVideo].pid != Channel->Vpid() // CA channels can only be decrypted in "live" mode
|| !IsPrimaryDevice()
|| LiveView // for a new live view the old PIDs need to be turned off
|| pidHandles[ptVideo].pid == Channel->Vpid() // for recording the PIDs must be shifted from DMX_PES_AUDIO/VIDEO to DMX_PES_OTHER
);
bool StartTransferMode = IsPrimaryDevice() && !IsEncrypted && !DoTune
&& (LiveView && HasPid(Channel->Vpid()) && pidHandles[ptVideo].pid != Channel->Vpid() // the PID is already set as DMX_PES_OTHER
|| !LiveView && pidHandles[ptVideo].pid == Channel->Vpid() // a recording is going to shift the PIDs from DMX_PES_AUDIO/VIDEO to DMX_PES_OTHER
);
bool TurnOnLivePIDs = HasDecoder() && !StartTransferMode
&& (IsEncrypted // CA channels can only be decrypted in "live" mode
|| LiveView
);
#ifndef DO_MULTIPLE_RECORDINGS
TurnOffLivePIDs = TurnOnLivePIDs = true;
StartTransferMode = false;
#endif
// XXX 1.3: use the same mechanism as below (!EITScanner.UsesDevice(this))
if (EITScanner.Active()) {
StartTransferMode = false;
TurnOnLivePIDs = false;
}
// Turn off live PIDs if necessary:
if (TurnOffLivePIDs)
TurnOffLiveMode();
dvbTuner->Set(Channel, DoTune, !EITScanner.UsesDevice(this)); //XXX 1.3: this is an ugly hack - find a cleaner solution//XXX
#ifdef WAIT_FOR_LOCK_AFTER_TUNING
//XXX TODO preliminary fix for the "Unknown picture type" error
time_t t0 = time(NULL);
while (!dvbTuner->Locked() && time(NULL) - t0 < 5)
usleep(100);
#endif
// PID settings:
if (TurnOnLivePIDs) {
aPid1 = Channel->Apid1();
aPid2 = Channel->Apid2();
if (!(AddPid(Channel->Ppid(), ptPcr) && AddPid(Channel->Apid1(), ptAudio) && AddPid(Channel->Vpid(), ptVideo))) {//XXX+ dolby dpid1!!! (if audio plugins are attached)
esyslog("ERROR: failed to set PIDs for channel %d on device %d", Channel->Number(), CardIndex() + 1);
return false;
}
if (IsPrimaryDevice())
AddPid(Channel->Tpid(), ptTeletext);
CHECK(ioctl(fd_audio, AUDIO_SET_MUTE, true)); // actually one would expect 'false' here, but according to Marco Schl<68><6C>ler <marco@lordzodiac.de> this works
// to avoid missing audio after replaying a DVD; with 'false' there is an audio disturbance when switching
// between two channels on the same transponder on DVB-S
CHECK(ioctl(fd_audio, AUDIO_SET_AV_SYNC, true));
}
else if (StartTransferMode)
cControl::Launch(new cTransferControl(this, Channel->Vpid(), Channel->Apid1(), Channel->Apid2(), Channel->Dpid1(), Channel->Dpid2()));
return true;
}
bool cDvbDevice::HasLock(void)
{
return dvbTuner ? dvbTuner->Locked() : false;
}
void cDvbDevice::SetVolumeDevice(int Volume)
{
if (HasDecoder()) {
audio_mixer_t am;
// conversion for linear volume response:
am.volume_left = am.volume_right = 2 * Volume - Volume * Volume / 255;
CHECK(ioctl(fd_audio, AUDIO_SET_MIXER, &am));
}
}
int cDvbDevice::NumAudioTracksDevice(void) const
{
int n = 0;
if (aPid1)
n++;
if (Ca() <= MAXDEVICES && aPid2 && aPid1 != aPid2) // a CA recording session blocks switching live audio tracks
n++;
return n;
}
const char **cDvbDevice::GetAudioTracksDevice(int *CurrentTrack) const
{
if (NumAudioTracksDevice()) {
if (CurrentTrack)
*CurrentTrack = (pidHandles[ptAudio].pid == aPid1) ? 0 : 1;
static const char *audioTracks1[] = { "Audio 1", NULL };
static const char *audioTracks2[] = { "Audio 1", "Audio 2", NULL };
return NumAudioTracksDevice() > 1 ? audioTracks2 : audioTracks1;
}
return NULL;
}
void cDvbDevice::SetAudioTrackDevice(int Index)
{
if (0 <= Index && Index < NumAudioTracksDevice()) {
int Pid = Index ? aPid2 : aPid1;
pidHandles[ptAudio].pid = Pid;
SetPid(&pidHandles[ptAudio], ptAudio, true);
}
}
bool cDvbDevice::CanReplay(void) const
{
#ifndef DO_REC_AND_PLAY_ON_PRIMARY_DEVICE
if (Receiving())
return false;
#endif
return cDevice::CanReplay() && (Ca() <= MAXDEVICES || ciHandler); // with non-LL-firmware we can only replay if there is no CA recording going on
}
bool cDvbDevice::SetPlayMode(ePlayMode PlayMode)
{
if (PlayMode != pmExtern_THIS_SHOULD_BE_AVOIDED && fd_video < 0 && fd_audio < 0) {
// reopen the devices
fd_video = DvbOpen(DEV_DVB_VIDEO, CardIndex(), O_RDWR | O_NONBLOCK);
fd_audio = DvbOpen(DEV_DVB_AUDIO, CardIndex(), O_RDWR | O_NONBLOCK);
SetVideoFormat(Setup.VideoFormat);
}
switch (PlayMode) {
case pmNone:
// special handling to return from PCM replay:
CHECK(ioctl(fd_video, VIDEO_SET_BLANK, true));
CHECK(ioctl(fd_video, VIDEO_SELECT_SOURCE, VIDEO_SOURCE_MEMORY));
CHECK(ioctl(fd_video, VIDEO_PLAY));
CHECK(ioctl(fd_video, VIDEO_STOP, true));
CHECK(ioctl(fd_audio, AUDIO_STOP, true));
CHECK(ioctl(fd_video, VIDEO_CLEAR_BUFFER));
CHECK(ioctl(fd_audio, AUDIO_CLEAR_BUFFER));
CHECK(ioctl(fd_video, VIDEO_SELECT_SOURCE, VIDEO_SOURCE_DEMUX));
CHECK(ioctl(fd_audio, AUDIO_SELECT_SOURCE, AUDIO_SOURCE_DEMUX));
CHECK(ioctl(fd_audio, AUDIO_SET_AV_SYNC, true));
CHECK(ioctl(fd_audio, AUDIO_SET_MUTE, false));
break;
case pmAudioVideo:
if (playMode == pmNone)
TurnOffLiveMode();
// continue with next...
case pmAudioOnlyBlack:
CHECK(ioctl(fd_video, VIDEO_SET_BLANK, true));
CHECK(ioctl(fd_audio, AUDIO_SELECT_SOURCE, AUDIO_SOURCE_MEMORY));
CHECK(ioctl(fd_audio, AUDIO_SET_AV_SYNC, PlayMode == pmAudioVideo));
CHECK(ioctl(fd_audio, AUDIO_PLAY));
CHECK(ioctl(fd_video, VIDEO_SELECT_SOURCE, VIDEO_SOURCE_MEMORY));
CHECK(ioctl(fd_video, VIDEO_PLAY));
break;
case pmAudioOnly:
CHECK(ioctl(fd_video, VIDEO_SET_BLANK, true));
CHECK(ioctl(fd_audio, AUDIO_STOP, true));
CHECK(ioctl(fd_audio, AUDIO_CLEAR_BUFFER));
CHECK(ioctl(fd_audio, AUDIO_SELECT_SOURCE, AUDIO_SOURCE_MEMORY));
CHECK(ioctl(fd_audio, AUDIO_SET_AV_SYNC, false));
CHECK(ioctl(fd_audio, AUDIO_PLAY));
CHECK(ioctl(fd_video, VIDEO_SET_BLANK, false));
break;
case pmVideoOnly:
CHECK(ioctl(fd_video, VIDEO_SET_BLANK, true));
CHECK(ioctl(fd_video, VIDEO_STOP, true));
CHECK(ioctl(fd_audio, AUDIO_SELECT_SOURCE, AUDIO_SOURCE_DEMUX));
CHECK(ioctl(fd_audio, AUDIO_SET_AV_SYNC, false));
CHECK(ioctl(fd_audio, AUDIO_PLAY));
CHECK(ioctl(fd_video, VIDEO_CLEAR_BUFFER));
CHECK(ioctl(fd_video, VIDEO_SELECT_SOURCE, VIDEO_SOURCE_MEMORY));
CHECK(ioctl(fd_video, VIDEO_PLAY));
break;
case pmExtern_THIS_SHOULD_BE_AVOIDED:
close(fd_video);
close(fd_audio);
fd_video = fd_audio = -1;
break;
}
playMode = PlayMode;
return true;
}
int64_t cDvbDevice::GetSTC(void)
{
if (fd_stc >= 0) {
struct dmx_stc stc;
stc.num = 0;
if (ioctl(fd_stc, DMX_GET_STC, &stc) == -1) {
esyslog("ERROR: stc %d: %m", CardIndex() + 1);
return -1;
}
return stc.stc / stc.base;
}
return -1;
}
void cDvbDevice::TrickSpeed(int Speed)
{
if (fd_video >= 0)
CHECK(ioctl(fd_video, VIDEO_SLOWMOTION, Speed));
}
void cDvbDevice::Clear(void)
{
if (fd_video >= 0)
CHECK(ioctl(fd_video, VIDEO_CLEAR_BUFFER));
if (fd_audio >= 0)
CHECK(ioctl(fd_audio, AUDIO_CLEAR_BUFFER));
cDevice::Clear();
}
void cDvbDevice::Play(void)
{
if (playMode == pmAudioOnly || playMode == pmAudioOnlyBlack) {
if (fd_audio >= 0)
CHECK(ioctl(fd_audio, AUDIO_CONTINUE));
}
else {
if (fd_audio >= 0)
CHECK(ioctl(fd_audio, AUDIO_SET_AV_SYNC, true));
if (fd_video >= 0)
CHECK(ioctl(fd_video, VIDEO_CONTINUE));
}
cDevice::Play();
}
void cDvbDevice::Freeze(void)
{
if (playMode == pmAudioOnly || playMode == pmAudioOnlyBlack) {
if (fd_audio >= 0)
CHECK(ioctl(fd_audio, AUDIO_PAUSE));
}
else {
if (fd_audio >= 0)
CHECK(ioctl(fd_audio, AUDIO_SET_AV_SYNC, false));
if (fd_video >= 0)
CHECK(ioctl(fd_video, VIDEO_FREEZE));
}
cDevice::Freeze();
}
void cDvbDevice::Mute(void)
{
if (fd_audio >= 0) {
CHECK(ioctl(fd_audio, AUDIO_SET_AV_SYNC, false));
CHECK(ioctl(fd_audio, AUDIO_SET_MUTE, true));
}
cDevice::Mute();
}
void cDvbDevice::StillPicture(const uchar *Data, int Length)
{
/* Using the VIDEO_STILLPICTURE ioctl call would be the
correct way to display a still frame, but unfortunately this
doesn't work with frames from VDR. So let's do pretty much the
same here as in DVB/driver/dvb.c's play_iframe() - I have absolutely
no idea why it works this way, but doesn't work with VIDEO_STILLPICTURE.
If anybody ever finds out what could be changed so that VIDEO_STILLPICTURE
could be used, please let me know!
kls 2002-03-23
2003-08-30: apparently the driver can't handle PES data, so Oliver Endriss
<o.endriss@gmx.de> has changed this to strip all PES headers
and send pure ES data to the driver. Seems to work just fine!
Let's drop the VIDEO_STILLPICTURE_WORKS_WITH_VDR_FRAMES stuff
once this has proven to work in all cases.
*/
#define VIDEO_STILLPICTURE_WORKS_WITH_VDR_FRAMES
#ifdef VIDEO_STILLPICTURE_WORKS_WITH_VDR_FRAMES
if (Data[0] == 0x00 && Data[1] == 0x00 && Data[2] == 0x01 && (Data[3] & 0xF0) == 0xE0) {
// PES data
char *buf = MALLOC(char, Length);
if (!buf)
return;
int i = 0;
int blen = 0;
while (i < Length - 6) {
if (Data[i] == 0x00 && Data[i + 1] == 0x00 && Data[i + 2] == 0x01) {
int len = Data[i + 4] * 256 + Data[i + 5];
if ((Data[i + 3] & 0xF0) == 0xE0) { // video packet
// skip PES header
int offs = i + 6;
// skip header extension
if ((Data[i + 6] & 0xC0) == 0x80) {
// MPEG-2 PES header
if (Data[i + 8] >= Length)
break;
offs += 3;
offs += Data[i + 8];
len -= 3;
len -= Data[i + 8];
if (len < 0 || offs + len > Length)
break;
}
else {
// MPEG-1 PES header
while (offs < Length && len > 0 && Data[offs] == 0xFF) {
offs++;
len--;
}
if (offs <= Length - 2 && len >= 2 && (Data[offs] & 0xC0) == 0x40) {
offs += 2;
len -= 2;
}
if (offs <= Length - 5 && len >= 5 && (Data[offs] & 0xF0) == 0x20) {
offs += 5;
len -= 5;
}
else if (offs <= Length - 10 && len >= 10 && (Data[offs] & 0xF0) == 0x30) {
offs += 10;
len -= 10;
}
else if (offs < Length && len > 0) {
offs++;
len--;
}
}
if (blen + len > Length) // invalid PES length field
break;
memcpy(&buf[blen], &Data[offs], len);
i = offs + len;
blen += len;
}
else if (Data[i + 3] >= 0xBD && Data[i + 3] <= 0xDF) // other PES packets
i += len + 6;
else
i++;
}
else
i++;
}
video_still_picture sp = { buf, blen };
CHECK(ioctl(fd_video, VIDEO_STILLPICTURE, &sp));
free(buf);
}
else {
// non-PES data
video_still_picture sp = { (char *)Data, Length };
CHECK(ioctl(fd_video, VIDEO_STILLPICTURE, &sp));
}
#else
#define MIN_IFRAME 400000
for (int i = MIN_IFRAME / Length + 1; i > 0; i--) {
safe_write(fd_video, Data, Length);
usleep(1); // allows the buffer to be displayed in case the progress display is active
}
#endif
}
bool cDvbDevice::Poll(cPoller &Poller, int TimeoutMs)
{
Poller.Add((playMode == pmAudioOnly || playMode == pmAudioOnlyBlack) ? fd_audio : fd_video, true);
return Poller.Poll(TimeoutMs);
}
bool cDvbDevice::Flush(int TimeoutMs)
{
//TODO actually this function should wait until all buffered data has been processed by the card, but how?
return true;
}
int cDvbDevice::PlayVideo(const uchar *Data, int Length)
{
int fd = (playMode == pmAudioOnly || playMode == pmAudioOnlyBlack) ? fd_audio : fd_video;
if (fd >= 0)
return write(fd, Data, Length);
return -1;
}
void cDvbDevice::PlayAudio(const uchar *Data, int Length)
{
//XXX actually this function will only be needed to implement replaying AC3 over the DVB card's S/PDIF
cDevice::PlayAudio(Data, Length);
}
bool cDvbDevice::OpenDvr(void)
{
CloseDvr();
fd_dvr = DvbOpen(DEV_DVB_DVR, CardIndex(), O_RDONLY | O_NONBLOCK, true);
if (fd_dvr >= 0)
tsBuffer = new cTSBuffer(fd_dvr, MEGABYTE(2), CardIndex() + 1);
return fd_dvr >= 0;
}
void cDvbDevice::CloseDvr(void)
{
if (fd_dvr >= 0) {
delete tsBuffer;
tsBuffer = NULL;
close(fd_dvr);
fd_dvr = -1;
}
}
bool cDvbDevice::GetTSPacket(uchar *&Data)
{
if (tsBuffer) {
Data = tsBuffer->Get();
return true;
}
return false;
}
Reference in New Issue View Git Blame Copy Permalink