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Version 1.3.20

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- Fixed displaying the "Audio" menu with the "Green" button from the "Main" menu
  in case there is only one audio track (thanks to Sascha Volkenandt for reporting
  this one).
- Now setting primaryDevice = NULL before deleting the devices in cDevice::Shutdown()
  to avoid problems in case other threads access it (thanks to Wolfgang Rohdewald for
  pointing this out).
- Fixed a buffer overflow in case a station defines all 32 audio PIDs (thanks to
  Christian Jacobsen for reporting this one).
- Fixed masking SubStreamType in cDevice::PlayPesPacket() (thanks to Werner Fink
  for pointing out this one).
- The new function cPlugin::Stop() shall be used to stop any background activities
  of a plugin. Previously this was done in the plugin's destructor, but it is
  better to do this in a dedicated function that can be called early when shutting
  down.
- Moved the call to SetAudioChannel(0) into cDevice::ClrAvailableTracks() to have it
  executed also when starting a replay.
- Completed the Danish OSD texts (thanks to Mogens Elneff).
- Completed the French OSD texts (thanks to Olivier Jacques).
- The new setup option "OSD/Channel info time" can be used to define the time after
  which the channel display is removed if no key has been pressed (thanks to
  Olivier Jacques).
- Modified cDolbyRepacker to make sure PES packets don't exceed the requested length
  (thanks to Reinhard Nissl).
- Fixed several memory leaks that were introduced through the use of cString (thanks
  to Stefan Huelswitt for reporting these).
- Added CMD_SPU_CHG_COLCON to cDvbSpuDecoder::setTime() (thanks to Marco Schlüßler).
- Making sure the current audio track is actually one of the ones available in a
  recording (thanks to Sascha Volkenandt for reporting a problem when starting
  replay of a recording that has no Dolby Digital audio after switching to a channel
  that has DD and selecting the DD audio track).
- Removed 'flags' from tTrackId (thought we would need this, but apparently we don't).
- Making sure the "Mute" and "Volume+/-" keys don't interfere with digital audio.
- Fixed the "pre 1.3.19" compatibility mode for old Dolby Digital recordings (thanks
  to Werner Fink for pointing out that this can be triggered in the default branch).
- Calling pesAssembler->Reset() in cDevice::AttachPlayer() to avoid problems with
  residual data in replay and Transfer Mode (thanks to Werner Fink for pointing this
  out).
- Added MPEG1 replay capability to cPesAssembler (thanks to Stefan Huelswitt).
This commit is contained in:
Klaus Schmidinger
2005-02-06 18:00:00 +01:00
parent e36fe18c48
commit 4d477cd144
25 changed files with 494 additions and 240 deletions
Download Patch File Download Diff File Expand all files Collapse all files

260
remux.c
View File

@@ -11,7 +11,7 @@
* The cDolbyRepacker code was originally written by Reinhard Nissl <rnissl@gmx.de>,
* and adapted to the VDR coding style by Klaus.Schmidinger@cadsoft.de.
*
* $Id: remux.c 1.27 2005/01/23 12:56:39 kls Exp $
* $Id: remux.c 1.28 2005/02/05 11:56:42 kls Exp $
*/
#include "remux.h"
@@ -24,12 +24,14 @@
class cRepacker {
protected:
int maxPacketSize;
uint8_t subStreamId;
public:
cRepacker(void) { subStreamId = 0; }
cRepacker(void) { maxPacketSize = 6 + 65535; subStreamId = 0; }
virtual ~cRepacker() {}
virtual int Put(cRingBufferLinear *ResultBuffer, const uchar *Data, int Count) = 0;
virtual int BreakAt(const uchar *Data, int Count) = 0;
void SetMaxPacketSize(int MaxPacketSize) { maxPacketSize = MaxPacketSize; }
void SetSubStreamId(uint8_t SubStreamId) { subStreamId = SubStreamId; }
};
@@ -40,6 +42,7 @@ private:
static int frameSizes[];
uchar fragmentData[6 + 65535];
int fragmentLen;
int fragmentTodo;
uchar pesHeader[6 + 3 + 255 + 4 + 4];
int pesHeaderLen;
uchar chk1;
@@ -50,15 +53,21 @@ private:
find_77,
store_chk1,
store_chk2,
get_length
get_length,
output_packet
} state;
void Reset(void);
void ResetPesHeader(void);
void AppendSubStreamID(void);
bool FinishRemainder(cRingBufferLinear *ResultBuffer, const uchar *const Data, const int Todo, int &Done, int &Bite);
bool StartNewPacket(cRingBufferLinear *ResultBuffer, const uchar *const Data, const int Todo, int &Done, int &Bite);
public:
cDolbyRepacker(void);
virtual int Put(cRingBufferLinear *ResultBuffer, const uchar *Data, int Count);
virtual int BreakAt(const uchar *Data, int Count);
};
// frameSizes are in words, i. e. multiply them by 2 to get bytes
int cDolbyRepacker::frameSizes[] = {
// fs = 48 kHz
64, 64, 80, 80, 96, 96, 112, 112, 128, 128, 160, 160, 192, 192, 224, 224,
@@ -93,17 +102,124 @@ cDolbyRepacker::cDolbyRepacker(void)
Reset();
}
void cDolbyRepacker::Reset()
void cDolbyRepacker::AppendSubStreamID(void)
{
if (subStreamId) {
pesHeader[pesHeaderLen++] = subStreamId;
pesHeader[pesHeaderLen++] = 0x00;
pesHeader[pesHeaderLen++] = 0x00;
pesHeader[pesHeaderLen++] = 0x00;
}
}
void cDolbyRepacker::ResetPesHeader(void)
{
state = find_0b;
pesHeader[6] = 0x80;
pesHeader[7] = 0x00;
pesHeader[8] = 0x00;
pesHeaderLen = 9;
AppendSubStreamID();
}
void cDolbyRepacker::Reset(void)
{
ResetPesHeader();
state = find_0b;
ac3todo = 0;
chk1 = 0;
chk2 = 0;
fragmentLen = 0;
fragmentTodo = 0;
}
bool cDolbyRepacker::FinishRemainder(cRingBufferLinear *ResultBuffer, const uchar *const Data, const int Todo, int &Done, int &Bite)
{
// enough data available to put PES packet into buffer?
if (fragmentTodo <= Todo) {
// output a previous fragment first
if (fragmentLen > 0) {
Bite = fragmentLen;
int n = ResultBuffer->Put(fragmentData, Bite);
if (Bite != n) {
Reset();
return false;
}
fragmentLen = 0;
}
Bite = fragmentTodo;
int n = ResultBuffer->Put(Data, Bite);
if (Bite != n) {
Reset();
Done += n;
return false;
}
fragmentTodo = 0;
// ac3 frame completely processed?
if (Bite >= ac3todo)
state = find_0b; // go on with finding start of next packet
}
else {
// copy the fragment into separate buffer for later processing
Bite = Todo;
if (fragmentLen + Bite > (int)sizeof(fragmentData)) {
Reset();
return false;
}
memcpy(fragmentData + fragmentLen, Data, Bite);
fragmentLen += Bite;
fragmentTodo -= Bite;
}
return true;
}
bool cDolbyRepacker::StartNewPacket(cRingBufferLinear *ResultBuffer, const uchar *const Data, const int Todo, int &Done, int &Bite)
{
int packetLen = pesHeaderLen + ac3todo;
// limit packet to maximum size
if (packetLen > maxPacketSize)
packetLen = maxPacketSize;
pesHeader[4] = (packetLen - 6) >> 8;
pesHeader[5] = (packetLen - 6) & 0xFF;
Bite = pesHeaderLen;
// enough data available to put PES packet into buffer?
if (packetLen - pesHeaderLen <= Todo) {
int n = ResultBuffer->Put(pesHeader, Bite);
if (Bite != n) {
Reset();
return false;
}
Bite = packetLen - pesHeaderLen;
n = ResultBuffer->Put(Data, Bite);
if (Bite != n) {
Reset();
Done += n;
return false;
}
// ac3 frame completely processed?
if (Bite >= ac3todo)
state = find_0b; // go on with finding start of next packet
}
else {
fragmentTodo = packetLen;
// copy the pesheader into separate buffer for later processing
if (fragmentLen + Bite > (int)sizeof(fragmentData)) {
Reset();
return false;
}
memcpy(fragmentData + fragmentLen, pesHeader, Bite);
fragmentLen += Bite;
fragmentTodo -= Bite;
// copy the fragment into separate buffer for later processing
Bite = Todo;
if (fragmentLen + Bite > (int)sizeof(fragmentData)) {
Reset();
return false;
}
memcpy(fragmentData + fragmentLen, Data, Bite);
fragmentLen += Bite;
fragmentTodo -= Bite;
}
return true;
}
int cDolbyRepacker::Put(cRingBufferLinear *ResultBuffer, const uchar *Data, int Count)
@@ -111,60 +227,27 @@ int cDolbyRepacker::Put(cRingBufferLinear *ResultBuffer, const uchar *Data, int
// check for MPEG 2
if ((Data[6] & 0xC0) != 0x80)
return 0;
// copy header information for later use
if (Data[6] != 0x80 || Data[7] != 0x00 || Data[8] != 0x00) {
pesHeaderLen = Data[8] + 6 + 3;
memcpy(pesHeader, Data, pesHeaderLen);
}
const uchar *data = Data + pesHeaderLen;
int done = pesHeaderLen;
// skip PES header
int done = 6 + 3 + Data[8];
int todo = Count - done;
// finish remainder of ac3 frame
if (ac3todo > 0) {
int bite;
// enough data available to put PES packet into buffer?
if (ac3todo <= todo) {
// output a previous fragment first
if (fragmentLen > 0) {
bite = fragmentLen;
int n = ResultBuffer->Put(fragmentData, bite);
if (bite != n) {
Reset();
return done;
}
fragmentLen = 0;
}
bite = ac3todo;
int n = ResultBuffer->Put(data, bite);
if (bite != n) {
Reset();
return done + n;
}
}
else {
// copy the fragment into separate buffer for later processing
bite = todo;
if (fragmentLen + bite > (int)sizeof(fragmentData)) {
Reset();
return done;
}
memcpy(fragmentData + fragmentLen, data, bite);
fragmentLen += bite;
}
data += bite;
done += bite;
todo -= bite;
ac3todo -= bite;
}
const uchar *data = Data + done;
bool headerCopied = false;
// look for 0x0B 0x77 <chk1> <chk2> <frameSize>
while (todo > 0) {
switch (state) {
case find_0b:
if (*data == 0x0B)
if (*data == 0x0B) {
++(int &)state;
// copy header information once for later use
if (!headerCopied) {
headerCopied = true;
pesHeaderLen = 6 + 3 + Data[8];
memcpy(pesHeader, Data, pesHeaderLen);
AppendSubStreamID();
}
}
data++;
done++;
todo--;
@@ -191,10 +274,13 @@ int cDolbyRepacker::Put(cRingBufferLinear *ResultBuffer, const uchar *Data, int
todo--;
++(int &)state;
continue;
case get_length: {
case get_length:
ac3todo = 2 * frameSizes[*data];
// frameSizeCode was invalid => restart searching
if (ac3todo <= 0) {
// reset PES header instead of using/copying a wrong one
ResetPesHeader();
headerCopied = true;
if (chk1 == 0x0B) {
if (chk2 == 0x77) {
state = store_chk1;
@@ -214,62 +300,32 @@ int cDolbyRepacker::Put(cRingBufferLinear *ResultBuffer, const uchar *Data, int
state = find_0b;
continue;
}
// adjust PES packet length and output packet
if (subStreamId) {
pesHeader[pesHeaderLen++] = subStreamId;
pesHeader[pesHeaderLen++] = 0x00;
pesHeader[pesHeaderLen++] = 0x00;
pesHeader[pesHeaderLen++] = 0x00;
}
int packetLen = pesHeaderLen - 6 + ac3todo;
pesHeader[4] = packetLen >> 8;
pesHeader[5] = packetLen & 0xFF;
pesHeader[pesHeaderLen + 0] = 0x0B;
pesHeader[pesHeaderLen + 1] = 0x77;
pesHeader[pesHeaderLen + 2] = chk1;
pesHeader[pesHeaderLen + 3] = chk2;
// append read data to header for common output processing
pesHeader[pesHeaderLen++] = 0x0B;
pesHeader[pesHeaderLen++] = 0x77;
pesHeader[pesHeaderLen++] = chk1;
pesHeader[pesHeaderLen++] = chk2;
ac3todo -= 4;
int bite = pesHeaderLen + 4;
// enough data available to put PES packet into buffer?
if (ac3todo <= todo) {
int n = ResultBuffer->Put(pesHeader, bite);
if (bite != n) {
Reset();
++(int &)state;
// fall through to output
case output_packet: {
int bite = 0;
// finish remainder of ac3 frame?
if (fragmentTodo > 0) {
if (!FinishRemainder(ResultBuffer, data, todo, done, bite))
return done;
}
bite = ac3todo;
n = ResultBuffer->Put(data, bite);
if (bite != n) {
Reset();
return done + n;
}
}
else {
// copy the fragment into separate buffer for later processing
if (fragmentLen + bite > (int)sizeof(fragmentData)) {
Reset();
// start a new packet
if (!StartNewPacket(ResultBuffer, data, todo, done, bite))
return done;
}
memcpy(fragmentData + fragmentLen, pesHeader, bite);
fragmentLen += bite;
bite = todo;
if (fragmentLen + bite > (int)sizeof(fragmentData)) {
Reset();
return done;
}
memcpy(fragmentData + fragmentLen, data, bite);
fragmentLen += bite;
// prepare for next packet
ResetPesHeader();
}
data += bite;
done += bite;
todo -= bite;
ac3todo -= bite;
// prepare for next packet
pesHeader[6] = 0x80;
pesHeader[7] = 0x00;
pesHeader[8] = 0x00;
pesHeaderLen = 9;
state = find_0b;
}
}
}
@@ -294,7 +350,7 @@ int cDolbyRepacker::BreakAt(const uchar *Data, int Count)
const uchar *data = Data + headerLen;
// break after ac3 frame?
if (data[0] == 0x0B && data[1] == 0x77 && frameSizes[data[4]] > 0)
return headerLen + frameSizes[data[4]];
return headerLen + 2 * frameSizes[data[4]];
return -1;
}
@@ -392,8 +448,10 @@ cTS2PES::cTS2PES(int Pid, cRingBufferLinear *ResultBuffer, int Size, uint8_t Aud
audioCid = AudioCid;
subStreamId = SubStreamId;
repacker = Repacker;
if (repacker)
if (repacker) {
repacker->SetMaxPacketSize(size);
repacker->SetSubStreamId(subStreamId);
}
tsErrors = 0;
ccErrors = 0;