1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
|
/*****************************************************************
|
| AP4 - HEVC Bitstream Stream Info
|
| Copyright 2002-2014 Axiomatic Systems, LLC
|
|
| This file is part of Bento4/AP4 (MP4 Atom Processing Library).
|
| Unless you have obtained Bento4 under a difference license,
| this version of Bento4 is Bento4|GPL.
| Bento4|GPL is free software; you can redistribute it and/or modify
| it under the terms of the GNU General Public License as published by
| the Free Software Foundation; either version 2, or (at your option)
| any later version.
|
| Bento4|GPL is distributed in the hope that it will be useful,
| but WITHOUT ANY WARRANTY; without even the implied warranty of
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
| GNU General Public License for more details.
|
| You should have received a copy of the GNU General Public License
| along with Bento4|GPL; see the file COPYING. If not, write to the
| Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
| 02111-1307, USA.
|
****************************************************************/
/*----------------------------------------------------------------------
| includes
+---------------------------------------------------------------------*/
#include <stdio.h>
#include <stdlib.h>
#include "Ap4.h"
#include "Ap4HevcParser.h"
#include "Ap4BitStream.h"
/*----------------------------------------------------------------------
| constants
+---------------------------------------------------------------------*/
#define BANNER "HEVC Bitstream Info - Version 1.0\n"\
"(Bento4 Version " AP4_VERSION_STRING ")\n"\
"(c) 2002-2014 Axiomatic Systems, LLC"
/*----------------------------------------------------------------------
| PrintUsageAndExit
+---------------------------------------------------------------------*/
static void
PrintUsageAndExit()
{
fprintf(stderr,
BANNER
"\n\nusage: hevcinfo [options] <input>\n");
exit(1);
}
/*----------------------------------------------------------------------
| main
+---------------------------------------------------------------------*/
int
main(int argc, char** argv)
{
if (argc < 2) {
PrintUsageAndExit();
}
const char* filename = NULL;
while (char* arg = *++argv) {
if (filename == NULL) {
filename = arg;
} else {
fprintf(stderr, "ERROR: unexpected argument '%s'\n", arg);
return 1;
}
}
if (filename == NULL) {
fprintf(stderr, "ERROR: filename missing\n");
return 1;
}
AP4_ByteStream* input = NULL;
AP4_Result result = AP4_FileByteStream::Create(filename,
AP4_FileByteStream::STREAM_MODE_READ,
input);
if (AP4_FAILED(result)) {
fprintf(stderr, "ERROR: cannot open input file %s (%d)\n", filename, result);
return 1;
}
AP4_HevcNalParser parser;
unsigned int nalu_count = 0;
for (;;) {
bool eos;
unsigned char input_buffer[4096];
AP4_Size bytes_in_buffer = 0;
result = input->ReadPartial(input_buffer, sizeof(input_buffer), bytes_in_buffer);
if (AP4_SUCCEEDED(result)) {
eos = false;
} else if (result == AP4_ERROR_EOS) {
eos = true;
} else {
fprintf(stderr, "ERROR: failed to read from input file\n");
break;
}
AP4_Size offset = 0;
do {
const AP4_DataBuffer* nalu = NULL;
AP4_Size bytes_consumed = 0;
result = parser.Feed(&input_buffer[offset], bytes_in_buffer, bytes_consumed, nalu, eos);
if (AP4_FAILED(result)) {
fprintf(stderr, "ERROR: Feed() failed (%d)\n", result);
break;
}
if (nalu) {
const unsigned char* nalu_payload = (const unsigned char*)nalu->GetData();
unsigned int nalu_type = (nalu_payload[0] >> 1) & 0x3F;
const char* nalu_type_name = AP4_HevcNalParser::NaluTypeName(nalu_type);
if (nalu_type_name == NULL) nalu_type_name = "UNKNOWN";
printf("NALU %5d: size=%5d, type=%02d (%s)",
nalu_count,
(int)nalu->GetDataSize(),
nalu_type,
nalu_type_name);
if (nalu_type == AP4_HEVC_NALU_TYPE_AUD_NUT) {
// Access Unit Delimiter
unsigned int pic_type = (nalu_payload[1]>>5);
const char* pic_type_name = AP4_HevcNalParser::PicTypeName(pic_type);
if (pic_type_name == NULL) pic_type_name = "UNKNOWN";
printf(" [%d:%s]\n", pic_type, pic_type_name);
} else {
printf("\n");
}
nalu_count++;
}
offset += bytes_consumed;
bytes_in_buffer -= bytes_consumed;
} while (bytes_in_buffer);
if (eos) break;
}
input->Release();
return 0;
}
|
