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| author | Klaus Schmidinger <vdr@tvdr.de> | 2009-11-01 15:02:49 +0100 |
|---|---|---|
| committer | Klaus Schmidinger <vdr@tvdr.de> | 2009-11-01 15:02:49 +0100 |
| commit | 95c9d3cf514ccca031a07c057622ca566061ab26 (patch) | |
| tree | 15a09bd7c4be80db4f02fc2c95250b2edc11db40 /remux.c | |
| parent | cb0b4768ad8c868b26465db91ec6572c5feeab31 (diff) | |
| download | vdr-95c9d3cf514ccca031a07c057622ca566061ab26.tar.gz vdr-95c9d3cf514ccca031a07c057622ca566061ab26.tar.bz2 | |
Fixed cFrameDetector::Analyze() to handle video streams where the frame type is not detectable from the first TS packet of a frame
Diffstat (limited to 'remux.c')
| -rw-r--r-- | remux.c | 20 |
1 files changed, 12 insertions, 8 deletions
@@ -4,7 +4,7 @@ * See the main source file 'vdr.c' for copyright information and * how to reach the author. * - * $Id: remux.c 2.26 2009/08/16 15:13:42 kls Exp $ + * $Id: remux.c 2.27 2009/11/01 12:25:17 kls Exp $ */ #include "remux.h" @@ -769,8 +769,12 @@ int cFrameDetector::Analyze(const uchar *Data, int Length) } if (TsHasPayload(Data) && !TsIsScrambled(Data) && TsPid(Data) == pid) { if (TsPayloadStart(Data)) { + if (synced && Processed) + return Processed; + if (Length < 2 * TS_SIZE) + return 0; // need more data, in case the frame type is stored in the second TS packet if (!frameDuration) { - // frame duration unknown, so collect a sequenece of PTS values: + // frame duration unknown, so collect a sequence of PTS values: if (numPtsValues < MaxPtsValues && numIFrames < 2) { // collect a sequence containing at least two I-frames const uchar *Pes = Data + TsPayloadOffset(Data); if (PesHasPts(Pes)) { @@ -836,8 +840,6 @@ int cFrameDetector::Analyze(const uchar *Data, int Length) case 0x01: // MPEG 1 video case 0x02: // MPEG 2 video if (scanner == 0x00000100) { // Picture Start Code - if (synced && Processed) - return Processed; newFrame = true; independentFrame = ((Data[i + 2] >> 3) & 0x07) == 1; // I-Frame if (synced) { @@ -851,12 +853,12 @@ int cFrameDetector::Analyze(const uchar *Data, int Length) dbgframes("%d ", (Data[i + 2] >> 3) & 0x07); } scanner = 0; + if (synced && Processed) + return Processed; } break; case 0x1B: // MPEG 4 video if (scanner == 0x00000109) { // Access Unit Delimiter - if (synced && Processed) - return Processed; newFrame = true; independentFrame = Data[i + 1] == 0x10; if (synced) { @@ -876,13 +878,13 @@ int cFrameDetector::Analyze(const uchar *Data, int Length) numIFrames++; dbgframes("%02X ", Data[i + 1]); } + if (synced && Processed) + return Processed; scanner = 0; } break; case 0x04: // MPEG audio case 0x06: // AC3 audio - if (synced && Processed) - return Processed; newFrame = true; independentFrame = true; if (!synced) { @@ -891,6 +893,8 @@ int cFrameDetector::Analyze(const uchar *Data, int Length) numIFrames++; } scanning = false; + if (synced && Processed) + return Processed; break; default: esyslog("ERROR: unknown stream type %d (PID %d) in frame detector", type, pid); pid = 0; // let's just ignore any further data |