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
|
/*
* frame CRC encoder (for codec/format testing)
* Copyright (c) 2002 Fabrice Bellard
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <inttypes.h>
#include "config.h"
#include "libavutil/adler32.h"
#include "libavutil/avstring.h"
#include "libavutil/intreadwrite.h"
#include "libavcodec/avcodec.h"
#include "avformat.h"
#include "internal.h"
static int framecrc_write_header(struct AVFormatContext *s)
{
int i;
for (i = 0; i < s->nb_streams; i++) {
AVStream *st = s->streams[i];
AVCodecParameters *par = st->codecpar;
if (par->extradata) {
uint32_t crc = av_adler32_update(0, par->extradata, par->extradata_size);
avio_printf(s->pb, "#extradata %d: %8d, 0x%08"PRIx32"\n",
i, par->extradata_size, crc);
}
}
return ff_framehash_write_header(s);
}
static av_unused void inline bswap(char *buf, int offset, int size)
{
if (size == 8) {
uint64_t val = AV_RN64(buf + offset);
AV_WN64(buf + offset, av_bswap64(val));
} else if (size == 4) {
uint32_t val = AV_RN32(buf + offset);
AV_WN32(buf + offset, av_bswap32(val));
}
}
static int framecrc_write_packet(struct AVFormatContext *s, AVPacket *pkt)
{
uint32_t crc = av_adler32_update(0, pkt->data, pkt->size);
char buf[256];
snprintf(buf, sizeof(buf), "%d, %10"PRId64", %10"PRId64", %8"PRId64", %8d, 0x%08"PRIx32,
pkt->stream_index, pkt->dts, pkt->pts, pkt->duration, pkt->size, crc);
if (pkt->flags != AV_PKT_FLAG_KEY)
av_strlcatf(buf, sizeof(buf), ", F=0x%0X", pkt->flags);
if (pkt->side_data_elems) {
int i;
av_strlcatf(buf, sizeof(buf), ", S=%d", pkt->side_data_elems);
for (i=0; i<pkt->side_data_elems; i++) {
const AVPacketSideData *const sd = &pkt->side_data[i];
const uint8_t *data = sd->data;
uint32_t side_data_crc = 0;
switch (sd->type) {
#if HAVE_BIGENDIAN
uint8_t bswap_buf[FFMAX(sizeof(AVCPBProperties),
sizeof(AVProducerReferenceTime))];
case AV_PKT_DATA_PALETTE:
case AV_PKT_DATA_REPLAYGAIN:
case AV_PKT_DATA_DISPLAYMATRIX:
case AV_PKT_DATA_STEREO3D:
case AV_PKT_DATA_AUDIO_SERVICE_TYPE:
case AV_PKT_DATA_FALLBACK_TRACK:
case AV_PKT_DATA_MASTERING_DISPLAY_METADATA:
case AV_PKT_DATA_SPHERICAL:
case AV_PKT_DATA_CONTENT_LIGHT_LEVEL:
case AV_PKT_DATA_S12M_TIMECODE:
for (size_t j = 0; j < sd->size / 4; j++) {
uint8_t buf[4];
AV_WL32(buf, AV_RB32(sd->data + 4 * j));
side_data_crc = av_adler32_update(side_data_crc, buf, 4);
}
break;
case AV_PKT_DATA_CPB_PROPERTIES:
#define BSWAP(struct, field) bswap(bswap_buf, offsetof(struct, field), sizeof(((struct){0}).field))
if (sd->size == sizeof(AVCPBProperties)) {
memcpy(bswap_buf, sd->data, sizeof(AVCPBProperties));
data = bswap_buf;
BSWAP(AVCPBProperties, max_bitrate);
BSWAP(AVCPBProperties, min_bitrate);
BSWAP(AVCPBProperties, avg_bitrate);
BSWAP(AVCPBProperties, buffer_size);
BSWAP(AVCPBProperties, vbv_delay);
}
goto pod;
case AV_PKT_DATA_PRFT:
if (sd->size == sizeof(AVProducerReferenceTime)) {
memcpy(bswap_buf, sd->data, sizeof(AVProducerReferenceTime));
data = bswap_buf;
BSWAP(AVProducerReferenceTime, wallclock);
BSWAP(AVProducerReferenceTime, flags);
}
goto pod;
pod:
#endif
default:
side_data_crc = av_adler32_update(0, data, sd->size);
}
av_strlcatf(buf, sizeof(buf), ", %8"SIZE_SPECIFIER", 0x%08"PRIx32,
pkt->side_data[i].size, side_data_crc);
}
}
av_strlcatf(buf, sizeof(buf), "\n");
avio_write(s->pb, buf, strlen(buf));
return 0;
}
AVOutputFormat ff_framecrc_muxer = {
.name = "framecrc",
.long_name = NULL_IF_CONFIG_SMALL("framecrc testing"),
.audio_codec = AV_CODEC_ID_PCM_S16LE,
.video_codec = AV_CODEC_ID_RAWVIDEO,
.write_header = framecrc_write_header,
.write_packet = framecrc_write_packet,
.flags = AVFMT_VARIABLE_FPS | AVFMT_TS_NONSTRICT |
AVFMT_TS_NEGATIVE,
};
|
