avinfo.c 15.4 KB
Newer Older
1
2
3
4
5
/* -*- tab-width:4;c-file-style:"cc-mode"; -*- */
/*
 * ffmpeg2theora.c -- Convert ffmpeg supported a/v files to Ogg Theora / Ogg Vorbis
 * Copyright (C) 2003-2008 <j@v2v.cc>
 *
6
 * gcc -o avinfo avinfo.c -DAVINFO `pkg-config --cflags --libs libavcodec libavformat`
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
 *
 * This program 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 of the License, or
 * (at your option) any later version.
 *
 * This program 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 this program; if not, write to the Free Software Foundation,
 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 *
 */

24
25
26
27
28
29
30
31
32
33
34
35
36
#if !defined(_GNU_SOURCE)
#define _GNU_SOURCE
#endif
#if !defined(_LARGEFILE_SOURCE)
#define _LARGEFILE_SOURCE
#endif
#if !defined(_LARGEFILE64_SOURCE)
#define _LARGEFILE64_SOURCE
#endif
#if !defined(_FILE_OFFSET_BITS)
#define _FILE_OFFSET_BITS 64
#endif

37
38
39
40
41
42
43
44
45
46
47
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <getopt.h>
#include <math.h>
#include <errno.h>
#include <sys/stat.h>

#include "libavformat/avformat.h"

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
#if !defined(off64_t)
#define off64_t off_t
#endif

#ifdef WIN32
#define fseeko fseeko64
#define ftello ftello64
#endif

#ifdef _BIG_ENDIAN
#define htonll(x) \
((((x) & 0xff00000000000000LL) >> 56) | \
(((x) & 0x00ff000000000000LL) >> 40) | \
(((x) & 0x0000ff0000000000LL) >> 24) | \
(((x) & 0x000000ff00000000LL) >> 8) | \
(((x) & 0x00000000ff000000LL) << 8) | \
(((x) & 0x0000000000ff0000LL) << 24) | \
(((x) & 0x000000000000ff00LL) << 40) | \
(((x) & 0x00000000000000ffLL) << 56))
#else
#define htonll(x) x
#endif

unsigned long long get_filesize(char const *filename) {
    unsigned long long size = 0;
    FILE *file = fopen(filename, "rb");
    if (file) {
        fseeko(file, 0, SEEK_END);
        size = ftello(file);
77
    }
78
79
    fclose(file);
    return size;
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
}

char const *fix_codec_name(char const *codec_name) {
    if (!strcmp(codec_name, "libschrodinger")) {
        codec_name = "dirac";
    }
    else if (!strcmp(codec_name, "vp6f")) {
        codec_name = "vp6";
    }
    else if (!strcmp(codec_name, "mpeg2video")) {
        codec_name = "mpeg2";
    }
    else if (!strcmp(codec_name, "mpeg1video")) {
        codec_name = "mpeg1";
    }
    else if (!strcmp(codec_name, "0x0000")) {
        codec_name = "mu-law";
    }
   return codec_name;
}

Jan Gerber's avatar
Jan Gerber committed
101
102
103
104
char *replace_str_all(char *str, char *orig, char *rep) {
  const char buffer[4096];
  char *p, *p_str = str, *p_buffer = (char *)buffer;
  int len = strlen(str);
Jan Gerber's avatar
Jan Gerber committed
105

Jan Gerber's avatar
Jan Gerber committed
106
107
108
109
110
111
112
113
114
115
116
117
  strncpy(p_buffer, str, len);
  while (p = strstr(p_str, orig)) {
    strncpy(p_buffer, p_str, p-p_str);
    p_buffer += (p-p_str);
    len = len - strlen(orig) + strlen(rep);    
    sprintf(p_buffer, "%s%s", rep, p+strlen(orig));
    p_str = p + strlen(orig);
    p_buffer += strlen(rep);
  }
  p = (char *)buffer;
  p[len] = '\0';
  return p;
Jan Gerber's avatar
Jan Gerber committed
118
119
}

120
121
122
enum {
    JSON_STRING,
    JSON_INT,
123
    JSON_LONGLONG,
124
125
126
    JSON_FLOAT,
} JSON_TYPES;

127
128
129
130
131
132
133
static void do_indent(FILE *output, int indent) {
    int i;
    for (i = 0; i < indent; i++)
        fprintf(output, "  ");
}

void json_add_key_value(FILE *output, char *key, void *value, int type, int last, int indent) {
Jan Gerber's avatar
Jan Gerber committed
134
    char *p;
135
136
137
    int i;
    
    do_indent(output, indent);
138
139
    switch(type) {
        case JSON_STRING:
Jan Gerber's avatar
Jan Gerber committed
140
            p = (char *)value;
Jan Gerber's avatar
Jan Gerber committed
141
142
            p = replace_str_all(p, "\\", "\\\\");
            p = replace_str_all(p, "\"", "\\\"");
143
            fprintf(output, "\"%s\": \"%s\"", key, p);
144
145
            break;
        case JSON_INT:
146
            fprintf(output, "\"%s\": %d", key, *(int *)value);
147
            break;
148
        case JSON_LONGLONG:
149
            fprintf(output, "\"%s\": %lld", key, *(unsigned long long *)value);
Jan Gerber's avatar
Jan Gerber committed
150
            break;
151
        case JSON_FLOAT:
152
            fprintf(output, "\"%s\": %f", key, *(float *)value);
153
154
            break;
    }
Jan Gerber's avatar
Jan Gerber committed
155
156
157
158
159
    if (last) {
        fprintf(output, "\n");
    } else {
        fprintf(output, ",\n");
    }
160
161
}

162
void json_codec_info(FILE *output, AVCodecContext *enc, int indent) {
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
    const char *codec_name;
    AVCodec *p;
    char buf1[32];
    int bitrate;
    AVRational display_aspect_ratio;

    p = avcodec_find_decoder(enc->codec_id);

    if (p) {
        codec_name = p->name;
    } else if (enc->codec_id == CODEC_ID_MPEG2TS) {
        /* fake mpeg2 transport stream codec (currently not
           registered) */
        codec_name = "mpeg2ts";
    } else if (enc->codec_name[0] != '\0') {
        codec_name = enc->codec_name;
    } else {
        /* output avi tags */
        if(   isprint(enc->codec_tag&0xFF) && isprint((enc->codec_tag>>8)&0xFF)
           && isprint((enc->codec_tag>>16)&0xFF) && isprint((enc->codec_tag>>24)&0xFF)){
            snprintf(buf1, sizeof(buf1), "%c%c%c%c / 0x%04X",
                     enc->codec_tag & 0xff,
                     (enc->codec_tag >> 8) & 0xff,
                     (enc->codec_tag >> 16) & 0xff,
                     (enc->codec_tag >> 24) & 0xff,
                      enc->codec_tag);
        } else {
            snprintf(buf1, sizeof(buf1), "0x%04x", enc->codec_tag);
        }
        codec_name = buf1;
    }

    switch(enc->codec_type) {
    case CODEC_TYPE_VIDEO:
        codec_name = fix_codec_name(codec_name);
198
        json_add_key_value(output, "codec", (void *)codec_name, JSON_STRING, 0, indent);
199
        if (enc->pix_fmt != PIX_FMT_NONE) {
200
            json_add_key_value(output, "pixel_format", (void *)avcodec_get_pix_fmt_name(enc->pix_fmt), JSON_STRING, 0, indent);
201
202
        }
        if (enc->width) {
203
204
            json_add_key_value(output, "width", &enc->width, JSON_INT, 0, indent);
            json_add_key_value(output, "height", &enc->height, JSON_INT, 0, indent);
205
206
207
208
209
210
211
            if (enc->sample_aspect_ratio.num) {
                av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
                          enc->width*enc->sample_aspect_ratio.num,
                          enc->height*enc->sample_aspect_ratio.den,
                          1024*1024);
                snprintf(buf1, sizeof(buf1), "%d:%d",
                         enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den);
212
                json_add_key_value(output, "pixel_aspect_ratio", buf1, JSON_STRING, 0, indent);
213
214
                snprintf(buf1, sizeof(buf1), "%d:%d",
                         display_aspect_ratio.num, display_aspect_ratio.den);
215
                json_add_key_value(output, "display_aspect_ratio", buf1, JSON_STRING, 0, indent);
216
217
218
219
220
            }
        }
        bitrate = enc->bit_rate;
        if (bitrate != 0) {
            float t = (float)bitrate / 1000;
221
            json_add_key_value(output, "bitrate", &t, JSON_FLOAT, 0, indent);
222
223
224
225
        }
        break;
    case CODEC_TYPE_AUDIO:
        codec_name = fix_codec_name(codec_name);
226
        json_add_key_value(output, "codec", (void *)codec_name, JSON_STRING, 0, indent);
227
        if (enc->sample_rate) {
228
            json_add_key_value(output, "samplerate", &enc->sample_rate, JSON_INT, 0, indent);
229
        }
230
        json_add_key_value(output, "channels", &enc->channels, JSON_INT, 0, indent);
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272

        /* for PCM codecs, compute bitrate directly */
        switch(enc->codec_id) {
        case CODEC_ID_PCM_F64BE:
        case CODEC_ID_PCM_F64LE:
            bitrate = enc->sample_rate * enc->channels * 64;
            break;
        case CODEC_ID_PCM_S32LE:
        case CODEC_ID_PCM_S32BE:
        case CODEC_ID_PCM_U32LE:
        case CODEC_ID_PCM_U32BE:
        case CODEC_ID_PCM_F32BE:
        case CODEC_ID_PCM_F32LE:
            bitrate = enc->sample_rate * enc->channels * 32;
            break;
        case CODEC_ID_PCM_S24LE:
        case CODEC_ID_PCM_S24BE:
        case CODEC_ID_PCM_U24LE:
        case CODEC_ID_PCM_U24BE:
        case CODEC_ID_PCM_S24DAUD:
            bitrate = enc->sample_rate * enc->channels * 24;
            break;
        case CODEC_ID_PCM_S16LE:
        case CODEC_ID_PCM_S16BE:
        case CODEC_ID_PCM_S16LE_PLANAR:
        case CODEC_ID_PCM_U16LE:
        case CODEC_ID_PCM_U16BE:
            bitrate = enc->sample_rate * enc->channels * 16;
            break;
        case CODEC_ID_PCM_S8:
        case CODEC_ID_PCM_U8:
        case CODEC_ID_PCM_ALAW:
        case CODEC_ID_PCM_MULAW:
        case CODEC_ID_PCM_ZORK:
            bitrate = enc->sample_rate * enc->channels * 8;
            break;
        default:
            bitrate = enc->bit_rate;
            break;
        }
        if (bitrate != 0) {
            float t = (float)bitrate / 1000;
273
            json_add_key_value(output, "bitrate", &t, JSON_FLOAT, 0, indent);
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
        }
        break;
    /*
    case CODEC_TYPE_DATA:
        fprintf(output, "datacodec: %s\n", codec_name);
        bitrate = enc->bit_rate;
        break;
    case CODEC_TYPE_SUBTITLE:
        fprintf(output, "subtitle: %s\n", codec_name);
        bitrate = enc->bit_rate;
        break;
    case CODEC_TYPE_ATTACHMENT:
        fprintf(output, "attachment: : %s\n", codec_name);
        bitrate = enc->bit_rate;
        break;
    */
    default:
        //FIXME: ignore unkown for now
        /*
        snprintf(buf, buf_size, "Invalid Codec type %d", enc->codec_type);
        */
        return;
    }
}


300
301
static void json_stream_format(FILE *output, AVFormatContext *ic, int i, int indent, int first, int type_filter) {
    static int _first = 1;
302
303
304
    char buf[1024];
    char buf1[32];
    int flags = ic->iformat->flags;
305

306
307
308
    AVStream *st = ic->streams[i];
    int g = av_gcd(st->time_base.num, st->time_base.den);
    AVMetadataTag *lang = av_metadata_get(st->metadata, "language", NULL, 0);
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326

    if (first)
        _first = 1;

    if(st->codec->codec_type == type_filter){
        if (!_first)
            fprintf(output, ", ");
        _first = 0;
        fprintf(output, "{\n");

        json_codec_info(output, st->codec, indent + 1);
        if (st->sample_aspect_ratio.num && // default
            av_cmp_q(st->sample_aspect_ratio, st->codec->sample_aspect_ratio)) {
            AVRational display_aspect_ratio;
            av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
                      st->codec->width*st->sample_aspect_ratio.num,
                      st->codec->height*st->sample_aspect_ratio.den,
                      1024*1024);
327
            snprintf(buf1, sizeof(buf1), "%d:%d",
328
329
                     st->sample_aspect_ratio.num, st->sample_aspect_ratio.den);
            json_add_key_value(output, "pixel_aspect_ratio", buf1, JSON_STRING, 0, indent + 1);
330
            snprintf(buf1, sizeof(buf1), "%d:%d",
331
332
333
334
335
336
337
338
339
340
341
342
343
                     display_aspect_ratio.num, display_aspect_ratio.den);
            json_add_key_value(output, "display_aspect_ratio", buf1, JSON_STRING, 0, indent + 1);
        }
        if(st->codec->codec_type == CODEC_TYPE_VIDEO){
            if (st->time_base.den && st->time_base.num && av_q2d(st->time_base) > 0.001) {
                snprintf(buf1, sizeof(buf1), "%d:%d",
                         st->time_base.den, st->time_base.num);
                json_add_key_value(output, "framerate", buf1, JSON_STRING, 0, indent + 1);
            } else {
                snprintf(buf1, sizeof(buf1), "%d:%d",
                         st->r_frame_rate.num, st->r_frame_rate.den);
                json_add_key_value(output, "framerate", buf1, JSON_STRING, 0, indent + 1);
            }
344
        }
345
346
347
        json_add_key_value(output, "id", &i, JSON_INT, 1, indent + 1);
        do_indent(output, indent-1);
        fprintf(output, "}");
348
349
350
    }
}

351
352
353
354
/* 
 * os hash
 * based on public domain example from
 * http://trac.opensubtitles.org/projects/opensubtitles/wiki/HashSourceCodes   
355
356
 * 
 * plus modification for files < 64k, buffer is filled with file data and padded with 0
357
 */
358

359
360
361
362
363
unsigned long long gen_oshash(char const *filename) {
    FILE *file;
    int i;
    unsigned long long t1=0;
    unsigned long long buffer1[8192*2];
Jan Gerber's avatar
Jan Gerber committed
364
    int used = 8192*2;
365
366
    file = fopen(filename, "rb");
    if (file) {
367
        //add filesize
368
369
370
371
        fseeko(file, 0, SEEK_END);
        t1 = ftello(file);
        fseeko(file, 0, SEEK_SET);

372
        if(t1 < 65536) {
Jan Gerber's avatar
Jan Gerber committed
373
374
            used = t1/8;
            fread(buffer1, used, 8, file);
375
376
        } else {
            fread(buffer1, 8192, 8, file);
377
            fseeko(file, -65536, SEEK_END);
378
379
            fread(&buffer1[8192], 8192, 8, file); 
        }
Jan Gerber's avatar
Jan Gerber committed
380
        for (i=0; i < used; i++)
381
            t1+=htonll(buffer1[i]);
382
383
384
385
386
        fclose(file);
    }
    return t1;
}

387
void json_oshash(FILE *output, char const *filename, int indent) {
Jan Gerber's avatar
Jan Gerber committed
388
    char hash[32];
Jan Gerber's avatar
Jan Gerber committed
389
#ifdef WIN32
390
    sprintf(hash,"%016I64x", gen_oshash(filename));
Jan Gerber's avatar
Jan Gerber committed
391
#else
392
    sprintf(hash,"%016qx", gen_oshash(filename));
Jan Gerber's avatar
Jan Gerber committed
393
#endif
394
    json_add_key_value(output, "oshash", (void *)hash, JSON_STRING, 0, indent);
395
396
397
}


398
399
400
/* "user interface" functions */
void json_format_info(FILE* output, AVFormatContext *ic, const char *url) {
    int i;
401
    unsigned long long filesize;
402
403
404
405
406

    fprintf(output, "{\n");
    if (ic->duration != AV_NOPTS_VALUE) {
        float secs;
        secs = (float)ic->duration / AV_TIME_BASE;
407
        json_add_key_value(output, "duration", &secs, JSON_FLOAT, 0, 1);
408
409
    } else {
        float t = -1;
410
        json_add_key_value(output, "duration", &t, JSON_FLOAT, 0, 1);
411
412
413
    }
    if (ic->bit_rate) {
        float t = (float)ic->bit_rate / 1000;
414
        json_add_key_value(output, "bitrate", &t, JSON_FLOAT, 0, 1);
415
416
    }

417
418
    do_indent(output, 1);
    fprintf(output, "\"video\": [");
419
420
421
422
    if(ic->nb_programs) {
        int j, k;
        for(j=0; j<ic->nb_programs; j++) {
            for(k=0; k<ic->programs[j]->nb_stream_indexes; k++)
423
                json_stream_format(output, ic, ic->programs[j]->stream_index[k], 2, !k && !j, CODEC_TYPE_VIDEO);
424
425
426
         }
    } else {
        for(i=0;i<ic->nb_streams;i++) {
427
            json_stream_format(output, ic, i, 2, !i, CODEC_TYPE_VIDEO);
428
429
        }
    }
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
    fprintf(output, "],\n");

    do_indent(output, 1);
    fprintf(output, "\"audio\": [");
    if(ic->nb_programs) {
        int j, k;
        for(j=0; j<ic->nb_programs; j++) {
            for(k=0; k<ic->programs[j]->nb_stream_indexes; k++)
                json_stream_format(output, ic, ic->programs[j]->stream_index[k], 2, !k && !j, CODEC_TYPE_AUDIO);
         }
    } else {
        for(i=0;i<ic->nb_streams;i++) {
            json_stream_format(output, ic, i, 2, !i, CODEC_TYPE_AUDIO);
        }
    }
    fprintf(output, "],\n");

    json_oshash(output, url, 1);
    json_add_key_value(output, "path", (void *)url, JSON_STRING, 0, 1);
449

Jan Gerber's avatar
Jan Gerber committed
450
    filesize = get_filesize(url);
451
    json_add_key_value(output, "size", &filesize, JSON_LONGLONG, 1, 1);
452

453
454
455
    fprintf(output, "}\n");
}

456
#ifdef AVINFO
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
int main(int argc, char **argv) {
    char inputfile_name[255];
    AVInputFormat *input_fmt = NULL;
    AVFormatParameters *formatParams = NULL;
    AVFormatContext *context;
    FILE* output = stdout;
    
    avcodec_register_all();
    av_register_all();

    if(argc == 1) {
        fprintf(stderr, "usage: %s avfile [outputfile]\n", argv[0]);
        exit(1);
    }
    snprintf(inputfile_name, sizeof(inputfile_name),"%s", argv[1]);
    if(argc == 3) {
        output = fopen(argv[2], "w");
    }
    
    if (av_open_input_file(&context, inputfile_name, input_fmt, 0, formatParams) >= 0) {
        if (av_find_stream_info(context) >= 0) {
            json_format_info(output, context, inputfile_name);
        }
    }
    if(output != stdout) {
        fclose(output);
    }
}
485
#endif