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Code Issues Releases Wiki Activity

Implemented a frame parser for H.265 (HEVC) recordings

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This commit is contained in:
Klaus Schmidinger 2016-12-22 12:22:11 +01:00
parent 22cb026e5e
commit f91468ff9b
4 changed files with 87 additions and 6 deletions
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1
CONTRIBUTORS
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@ -3331,6 +3331,7 @@ Thomas Reufer <thomas@reufer.ch>
for improving handling frame numbers to have a smoother progress display during
replay of recordings with B-frames
for fixing replaying recordings to their very end, if they don't end with an I-frame
for implementing a frame parser for H.265 (HEVC) recordings
Eike Sauer <EikeSauer@t-online.de>
for reporting a problem with channels that need more than 5 TS packets for detecting

1
HISTORY
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@ -8861,3 +8861,4 @@ Video Disk Recorder Revision History
replay of recordings with B-frames (thanks to Thomas Reufer).
- Fixed replaying recordings to their very end, if they don't end with an I-frame
(thanks to Thomas Reufer).
- Implemented a frame parser for H.265 (HEVC) recordings (thanks to Thomas Reufer).

3
pat.c
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@ -4,7 +4,7 @@
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: pat.c 4.1 2015/08/17 08:46:55 kls Exp $
* $Id: pat.c 4.2 2016/12/22 11:42:23 kls Exp $
*/
#include "pat.h"
@ -439,6 +439,7 @@ void cPatFilter::Process(u_short Pid, u_char Tid, const u_char *Data, int Length
case 1: // STREAMTYPE_11172_VIDEO
case 2: // STREAMTYPE_13818_VIDEO
case 0x1B: // H.264
case 0x24: // H.265
Vpid = esPid;
Ppid = pmt.getPCRPid();
Vtype = stream.getStreamType();

88
remux.c
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@ -4,7 +4,7 @@
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: remux.c 4.1 2015/03/11 09:49:38 kls Exp $
* $Id: remux.c 4.2 2016/12/22 11:45:52 kls Exp $
*/
#include "remux.h"
@ -708,6 +708,7 @@ void cPatPmtParser::ParsePmt(const uchar *Data, int Length)
case 0x01: // STREAMTYPE_11172_VIDEO
case 0x02: // STREAMTYPE_13818_VIDEO
case 0x1B: // H.264
case 0x24: // H.265
vpid = stream.getPid();
vtype = stream.getStreamType();
ppid = Pmt.getPCRPid();
@ -1204,16 +1205,16 @@ private:
nutSequenceParameterSet = 7,
nutAccessUnitDelimiter = 9,
};
cTsPayload tsPayload;
uchar byte; // holds the current byte value in case of bitwise access
int bit; // the bit index into the current byte (-1 if we're not in bit reading mode)
int zeroBytes; // the number of consecutive zero bytes (to detect 0x000003)
uint32_t scanner;
// Identifiers written in '_' notation as in "ITU-T H.264":
bool separate_colour_plane_flag;
int log2_max_frame_num;
bool frame_mbs_only_flag;
//
protected:
cTsPayload tsPayload;
uint32_t scanner;
bool gotAccessUnitDelimiter;
bool gotSequenceParameterSet;
uchar GetByte(bool Raw = false);
@ -1430,6 +1431,81 @@ void cH264Parser::ParseSliceHeader(void)
}
}
// --- cH265Parser -----------------------------------------------------------
class cH265Parser : public cH264Parser {
private:
enum eNalUnitType {
nutSliceSegmentTrailingN = 0,
nutSliceSegmentTrailingR = 1,
nutSliceSegmentTSAN = 2,
nutSliceSegmentTSAR = 3,
nutSliceSegmentSTSAN = 4,
nutSliceSegmentSTSAR = 5,
nutSliceSegmentRADLN = 6,
nutSliceSegmentRADLR = 7,
nutSliceSegmentRASLN = 8,
nutSliceSegmentRASLR = 9,
nutSliceSegmentBLAWLP = 16,
nutSliceSegmentBLAWRADL = 17,
nutSliceSegmentBLANLP = 18,
nutSliceSegmentIDRWRADL = 19,
nutSliceSegmentIDRNLP = 20,
nutSliceSegmentCRANUT = 21,
nutVideoParameterSet = 32,
nutSequenceParameterSet = 33,
nutPictureParameterSet = 34,
nutAccessUnitDelimiter = 35,
nutEndOfSequence = 36,
nutEndOfBitstream = 37,
nutFillerData = 38,
nutPrefixSEI = 39,
nutSuffixSEI = 40,
nutNonVCLRes0 = 41,
nutNonVCLRes3 = 44,
nutUnspecified0 = 48,
nutUnspecified7 = 55,
};
public:
cH265Parser(void);
virtual int Parse(const uchar *Data, int Length, int Pid);
};
cH265Parser::cH265Parser(void)
:cH264Parser()
{
}
int cH265Parser::Parse(const uchar *Data, int Length, int Pid)
{
newFrame = independentFrame = false;
tsPayload.Setup(const_cast<uchar *>(Data), Length, Pid);
if (TsPayloadStart(Data)) {
tsPayload.SkipPesHeader();
scanner = EMPTY_SCANNER;
}
for (;;) {
scanner = (scanner << 8) | GetByte(true);
if ((scanner & 0xFFFFFF00) == 0x00000100) { // NAL unit start
uchar NalUnitType = (scanner >> 1) & 0x3F;
GetByte(); // nuh_layer_id + nuh_temporal_id_plus1
if (NalUnitType <= nutSliceSegmentRASLR || (NalUnitType >= nutSliceSegmentBLAWLP && NalUnitType <= nutSliceSegmentCRANUT)) {
if (NalUnitType == nutSliceSegmentIDRWRADL || NalUnitType == nutSliceSegmentIDRNLP || NalUnitType == nutSliceSegmentCRANUT)
independentFrame = true;
if (GetBit()) { // first_slice_segment_in_pic_flag
newFrame = true;
tsPayload.Statistics();
}
break;
}
}
if (tsPayload.AtPayloadStart() // stop at any new payload start to have the buffer refilled if necessary
|| tsPayload.Eof()) // or if we're out of data
break;
}
return tsPayload.Used();
}
// --- cFrameDetector --------------------------------------------------------
cFrameDetector::cFrameDetector(int Pid, int Type)
@ -1456,13 +1532,15 @@ void cFrameDetector::SetPid(int Pid, int Type)
{
pid = Pid;
type = Type;
isVideo = type == 0x01 || type == 0x02 || type == 0x1B; // MPEG 1, 2 or H.264
isVideo = type == 0x01 || type == 0x02 || type == 0x1B || type == 0x24; // MPEG 1, 2, H.264 or H.265
delete parser;
parser = NULL;
if (type == 0x01 || type == 0x02)
parser = new cMpeg2Parser;
else if (type == 0x1B)
parser = new cH264Parser;
else if (type == 0x24)
parser = new cH265Parser;
else if (type == 0x04 || type == 0x06) // MPEG audio or AC3 audio
parser = new cAudioParser;
else if (type != 0)