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Code Issues Releases Wiki Activity

More cRepacker fixes

This commit is contained in:
Klaus Schmidinger 2005-09-04 15:15:14 +02:00
parent 1bc5ba817c
commit faedc7862e
1 changed files with 23 additions and 19 deletions
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42
remux.c
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@ -11,7 +11,7 @@
* The cRepacker family's 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 1.45 2005/08/28 21:44:51 kls Exp $
* $Id: remux.c 1.46 2005/09/04 15:15:14 kls Exp $
*/
#include "remux.h"
@ -98,7 +98,7 @@ public:
static int Put(cRingBufferLinear *ResultBuffer, const uchar *Data, int Count, int CapacityNeeded);
cRepacker(void) { initiallySyncing = true; maxPacketSize = 6 + 65535; subStreamId = 0; }
virtual ~cRepacker() {}
virtual void Reset(void) { /* initiallySyncing = true; */ }
virtual void Reset(void) { initiallySyncing = true; }
virtual void Repack(cRingBufferLinear *ResultBuffer, const uchar *Data, int Count) = 0;
virtual int BreakAt(const uchar *Data, int Count) = 0;
virtual int QuerySnoopSize(void) { return 0; }
@ -516,9 +516,10 @@ private:
} state;
int frameTodo;
int frameSize;
int cid;
static bool IsValidAudioHeader(uint32_t Header, bool Mpeg2, int *FrameSize = NULL);
public:
cAudioRepacker(void);
cAudioRepacker(int Cid);
virtual void Reset(void);
virtual void Repack(cRingBufferLinear *ResultBuffer, const uchar *Data, int Count);
virtual int BreakAt(const uchar *Data, int Count);
@ -537,8 +538,9 @@ int cAudioRepacker::bitRates[2][3][16] = { // all values are specified as kbits/
}
};
cAudioRepacker::cAudioRepacker(void)
cAudioRepacker::cAudioRepacker(int Cid)
{
cid = Cid;
Reset();
}
@ -649,21 +651,11 @@ void cAudioRepacker::Repack(cRingBufferLinear *ResultBuffer, const uchar *Data,
// collect number of skipped bytes while syncing
if (state <= syncing)
skippedBytes++;
else if (frameTodo > 0) {
frameTodo--;
if (frameTodo == 0 && state == scanFrame) {
// the current audio frame is is done now. So push out the packet to
// start a new packet for the next audio frame.
PushOutPacket(ResultBuffer, payload, data - payload);
// go on with syncing to the next audio frame
state = syncing;
}
}
// did we reach an audio frame header?
scanner <<= 8;
scanner |= *data;
if ((scanner & 0xFFF00000) == 0xFFF00000) {
if (frameTodo <= 0 && IsValidAudioHeader(scanner, mpegLevel == phMPEG2, &frameSize)) {
if (frameTodo <= 0 && (frameSize == 0 || skippedBytes >= 4) && IsValidAudioHeader(scanner, mpegLevel == phMPEG2, &frameSize)) {
if (state == scanFrame) {
// As a new audio frame starts here, the previous one is done. So push
// out the packet to start a new packet for the next audio frame. If
@ -678,7 +670,7 @@ void cAudioRepacker::Repack(cRingBufferLinear *ResultBuffer, const uchar *Data,
if (initiallySyncing) // omit report for the typical initial case
initiallySyncing = false;
else if (skippedBytes > SkippedBytesLimit) // report that syncing dropped some bytes
esyslog("cAudioRepacker: skipped %d bytes to sync on next audio frame", skippedBytes - SkippedBytesLimit);
esyslog("cAudioRepacker(0x%02X): skipped %d bytes to sync on next audio frame", cid, skippedBytes - SkippedBytesLimit);
skippedBytes = 0;
// if there is a PES header available, then use it ...
if (pesHeaderBackupLen > 0) {
@ -728,6 +720,16 @@ void cAudioRepacker::Repack(cRingBufferLinear *ResultBuffer, const uchar *Data,
data++;
done++;
todo--;
// do we have to start a new packet as the current is done?
if (frameTodo > 0) {
if (--frameTodo == 0) {
// the current audio frame is is done now. So push out the packet to
// start a new packet for the next audio frame.
PushOutPacket(ResultBuffer, payload, data - payload);
// go on with syncing to the next audio frame
state = syncing;
}
}
// do we have to start a new packet as there is no more space left?
if (state != syncing && --packetTodo <= 0) {
// We connot start a new packet here if the current might end in an audio
@ -826,7 +828,7 @@ void cAudioRepacker::Repack(cRingBufferLinear *ResultBuffer, const uchar *Data,
// report that syncing dropped some bytes
if (skippedBytes > SkippedBytesLimit) {
if (!initiallySyncing) // omit report for the typical initial case
esyslog("cAudioRepacker: skipped %d bytes while syncing on next audio frame", skippedBytes - SkippedBytesLimit);
esyslog("cAudioRepacker(0x%02X): skipped %d bytes while syncing on next audio frame", cid, skippedBytes - SkippedBytesLimit);
skippedBytes = SkippedBytesLimit;
}
}
@ -1687,13 +1689,15 @@ cRemux::cRemux(int VPid, const int *APids, const int *DPids, const int *SPids, b
#endif
if (APids) {
int n = 0;
while (*APids && numTracks < MAXTRACKS && n < MAXAPIDS)
while (*APids && numTracks < MAXTRACKS && n < MAXAPIDS) {
#define TEST_cAudioRepacker
#ifdef TEST_cAudioRepacker
ts2pes[numTracks++] = new cTS2PES(*APids++, resultBuffer, IPACKS, 0xC0 + n++, 0x00, new cAudioRepacker);
ts2pes[numTracks++] = new cTS2PES(*APids++, resultBuffer, IPACKS, 0xC0 + n, 0x00, new cAudioRepacker(0xC0 + n));
n++;
#else
ts2pes[numTracks++] = new cTS2PES(*APids++, resultBuffer, IPACKS, 0xC0 + n++);
#endif
}
}
if (DPids) {
int n = 0;