Statistics
| Branch: | Revision:

ffmpeg / libavcodec / utils.c @ f2508b17

History | View | Annotate | Download (58.4 KB)

1
/*
2
 * utils for libavcodec
3
 * Copyright (c) 2001 Fabrice Bellard.
4
 * Copyright (c) 2003 Michel Bardiaux for the av_log API
5
 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
6
 *
7
 * This library is free software; you can redistribute it and/or
8
 * modify it under the terms of the GNU Lesser General Public
9
 * License as published by the Free Software Foundation; either
10
 * version 2 of the License, or (at your option) any later version.
11
 *
12
 * This library is distributed in the hope that it will be useful,
13
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15
 * Lesser General Public License for more details.
16
 *
17
 * You should have received a copy of the GNU Lesser General Public
18
 * License along with this library; if not, write to the Free Software
19
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20
 */
21

    
22
/**
23
 * @file utils.c
24
 * utils.
25
 */
26

    
27
#include "avcodec.h"
28
#include "dsputil.h"
29
#include "mpegvideo.h"
30
#include "integer.h"
31
#include "opt.h"
32
#include "crc.h"
33
#include <stdarg.h>
34
#include <limits.h>
35
#include <float.h>
36
#ifdef CONFIG_WIN32
37
#include <fcntl.h>
38
#endif
39

    
40
const uint8_t ff_reverse[256]={
41
0x00,0x80,0x40,0xC0,0x20,0xA0,0x60,0xE0,0x10,0x90,0x50,0xD0,0x30,0xB0,0x70,0xF0,
42
0x08,0x88,0x48,0xC8,0x28,0xA8,0x68,0xE8,0x18,0x98,0x58,0xD8,0x38,0xB8,0x78,0xF8,
43
0x04,0x84,0x44,0xC4,0x24,0xA4,0x64,0xE4,0x14,0x94,0x54,0xD4,0x34,0xB4,0x74,0xF4,
44
0x0C,0x8C,0x4C,0xCC,0x2C,0xAC,0x6C,0xEC,0x1C,0x9C,0x5C,0xDC,0x3C,0xBC,0x7C,0xFC,
45
0x02,0x82,0x42,0xC2,0x22,0xA2,0x62,0xE2,0x12,0x92,0x52,0xD2,0x32,0xB2,0x72,0xF2,
46
0x0A,0x8A,0x4A,0xCA,0x2A,0xAA,0x6A,0xEA,0x1A,0x9A,0x5A,0xDA,0x3A,0xBA,0x7A,0xFA,
47
0x06,0x86,0x46,0xC6,0x26,0xA6,0x66,0xE6,0x16,0x96,0x56,0xD6,0x36,0xB6,0x76,0xF6,
48
0x0E,0x8E,0x4E,0xCE,0x2E,0xAE,0x6E,0xEE,0x1E,0x9E,0x5E,0xDE,0x3E,0xBE,0x7E,0xFE,
49
0x01,0x81,0x41,0xC1,0x21,0xA1,0x61,0xE1,0x11,0x91,0x51,0xD1,0x31,0xB1,0x71,0xF1,
50
0x09,0x89,0x49,0xC9,0x29,0xA9,0x69,0xE9,0x19,0x99,0x59,0xD9,0x39,0xB9,0x79,0xF9,
51
0x05,0x85,0x45,0xC5,0x25,0xA5,0x65,0xE5,0x15,0x95,0x55,0xD5,0x35,0xB5,0x75,0xF5,
52
0x0D,0x8D,0x4D,0xCD,0x2D,0xAD,0x6D,0xED,0x1D,0x9D,0x5D,0xDD,0x3D,0xBD,0x7D,0xFD,
53
0x03,0x83,0x43,0xC3,0x23,0xA3,0x63,0xE3,0x13,0x93,0x53,0xD3,0x33,0xB3,0x73,0xF3,
54
0x0B,0x8B,0x4B,0xCB,0x2B,0xAB,0x6B,0xEB,0x1B,0x9B,0x5B,0xDB,0x3B,0xBB,0x7B,0xFB,
55
0x07,0x87,0x47,0xC7,0x27,0xA7,0x67,0xE7,0x17,0x97,0x57,0xD7,0x37,0xB7,0x77,0xF7,
56
0x0F,0x8F,0x4F,0xCF,0x2F,0xAF,0x6F,0xEF,0x1F,0x9F,0x5F,0xDF,0x3F,0xBF,0x7F,0xFF,
57
};
58

    
59
static int volatile entangled_thread_counter=0;
60

    
61
void avcodec_default_free_buffers(AVCodecContext *s);
62

    
63
void *av_mallocz(unsigned int size)
64
{
65
    void *ptr;
66

    
67
    ptr = av_malloc(size);
68
    if (!ptr)
69
        return NULL;
70
    memset(ptr, 0, size);
71
    return ptr;
72
}
73

    
74
char *av_strdup(const char *s)
75
{
76
    char *ptr;
77
    int len;
78
    len = strlen(s) + 1;
79
    ptr = av_malloc(len);
80
    if (!ptr)
81
        return NULL;
82
    memcpy(ptr, s, len);
83
    return ptr;
84
}
85

    
86
/**
87
 * realloc which does nothing if the block is large enough
88
 */
89
void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size)
90
{
91
    if(min_size < *size)
92
        return ptr;
93

    
94
    *size= FFMAX(17*min_size/16 + 32, min_size);
95

    
96
    return av_realloc(ptr, *size);
97
}
98

    
99

    
100
static unsigned int last_static = 0;
101
static unsigned int allocated_static = 0;
102
static void** array_static = NULL;
103

    
104
/**
105
 * allocation of static arrays - do not use for normal allocation.
106
 */
107
void *av_mallocz_static(unsigned int size)
108
{
109
    void *ptr = av_mallocz(size);
110

    
111
    if(ptr){
112
        array_static =av_fast_realloc(array_static, &allocated_static, sizeof(void*)*(last_static+1));
113
        if(!array_static)
114
            return NULL;
115
        array_static[last_static++] = ptr;
116
    }
117

    
118
    return ptr;
119
}
120

    
121
/**
122
 * same as above, but does realloc
123
 */
124

    
125
void *av_realloc_static(void *ptr, unsigned int size)
126
{
127
    int i;
128
    if(!ptr)
129
      return av_mallocz_static(size);
130
    /* Look for the old ptr */
131
    for(i = 0; i < last_static; i++) {
132
        if(array_static[i] == ptr) {
133
            array_static[i] = av_realloc(array_static[i], size);
134
            return array_static[i];
135
        }
136
    }
137
    return NULL;
138

    
139
}
140

    
141
/**
142
 * free all static arrays and reset pointers to 0.
143
 */
144
void av_free_static(void)
145
{
146
    while(last_static){
147
        av_freep(&array_static[--last_static]);
148
    }
149
    av_freep(&array_static);
150
}
151

    
152
/**
153
 * Call av_free_static automatically before it's too late
154
 */
155

    
156
static void do_free(void) __attribute__ ((destructor));
157

    
158
static void do_free(void)
159
{
160
    av_free_static();
161
}
162

    
163
/**
164
 * Frees memory and sets the pointer to NULL.
165
 * @param arg pointer to the pointer which should be freed
166
 */
167
void av_freep(void *arg)
168
{
169
    void **ptr= (void**)arg;
170
    av_free(*ptr);
171
    *ptr = NULL;
172
}
173

    
174
/* encoder management */
175
AVCodec *first_avcodec = NULL;
176

    
177
void register_avcodec(AVCodec *format)
178
{
179
    AVCodec **p;
180
    p = &first_avcodec;
181
    while (*p != NULL) p = &(*p)->next;
182
    *p = format;
183
    format->next = NULL;
184
}
185

    
186
void avcodec_set_dimensions(AVCodecContext *s, int width, int height){
187
    s->coded_width = width;
188
    s->coded_height= height;
189
    s->width = -((-width )>>s->lowres);
190
    s->height= -((-height)>>s->lowres);
191
}
192

    
193
typedef struct InternalBuffer{
194
    int last_pic_num;
195
    uint8_t *base[4];
196
    uint8_t *data[4];
197
    int linesize[4];
198
}InternalBuffer;
199

    
200
#define INTERNAL_BUFFER_SIZE 32
201

    
202
#define ALIGN(x, a) (((x)+(a)-1)&~((a)-1))
203

    
204
void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height){
205
    int w_align= 1;
206
    int h_align= 1;
207

    
208
    switch(s->pix_fmt){
209
    case PIX_FMT_YUV420P:
210
    case PIX_FMT_YUV422:
211
    case PIX_FMT_UYVY422:
212
    case PIX_FMT_YUV422P:
213
    case PIX_FMT_YUV444P:
214
    case PIX_FMT_GRAY8:
215
    case PIX_FMT_YUVJ420P:
216
    case PIX_FMT_YUVJ422P:
217
    case PIX_FMT_YUVJ444P:
218
        w_align= 16; //FIXME check for non mpeg style codecs and use less alignment
219
        h_align= 16;
220
        break;
221
    case PIX_FMT_YUV411P:
222
    case PIX_FMT_UYVY411:
223
        w_align=32;
224
        h_align=8;
225
        break;
226
    case PIX_FMT_YUV410P:
227
        if(s->codec_id == CODEC_ID_SVQ1){
228
            w_align=64;
229
            h_align=64;
230
        }
231
    case PIX_FMT_RGB555:
232
        if(s->codec_id == CODEC_ID_RPZA){
233
            w_align=4;
234
            h_align=4;
235
        }
236
    case PIX_FMT_PAL8:
237
        if(s->codec_id == CODEC_ID_SMC){
238
            w_align=4;
239
            h_align=4;
240
        }
241
        break;
242
    case PIX_FMT_BGR24:
243
        if((s->codec_id == CODEC_ID_MSZH) || (s->codec_id == CODEC_ID_ZLIB)){
244
            w_align=4;
245
            h_align=4;
246
        }
247
        break;
248
    default:
249
        w_align= 1;
250
        h_align= 1;
251
        break;
252
    }
253

    
254
    *width = ALIGN(*width , w_align);
255
    *height= ALIGN(*height, h_align);
256
}
257

    
258
int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h){
259
    if((int)w>0 && (int)h>0 && (w+128)*(uint64_t)(h+128) < INT_MAX/4)
260
        return 0;
261

    
262
    av_log(av_log_ctx, AV_LOG_ERROR, "picture size invalid (%ux%u)\n", w, h);
263
    return -1;
264
}
265

    
266
int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic){
267
    int i;
268
    int w= s->width;
269
    int h= s->height;
270
    InternalBuffer *buf;
271
    int *picture_number;
272

    
273
    assert(pic->data[0]==NULL);
274
    assert(INTERNAL_BUFFER_SIZE > s->internal_buffer_count);
275

    
276
    if(avcodec_check_dimensions(s,w,h))
277
        return -1;
278

    
279
    if(s->internal_buffer==NULL){
280
        s->internal_buffer= av_mallocz(INTERNAL_BUFFER_SIZE*sizeof(InternalBuffer));
281
    }
282
#if 0
283
    s->internal_buffer= av_fast_realloc(
284
        s->internal_buffer,
285
        &s->internal_buffer_size,
286
        sizeof(InternalBuffer)*FFMAX(99,  s->internal_buffer_count+1)/*FIXME*/
287
        );
288
#endif
289

    
290
    buf= &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count];
291
    picture_number= &(((InternalBuffer*)s->internal_buffer)[INTERNAL_BUFFER_SIZE-1]).last_pic_num; //FIXME ugly hack
292
    (*picture_number)++;
293

    
294
    if(buf->base[0]){
295
        pic->age= *picture_number - buf->last_pic_num;
296
        buf->last_pic_num= *picture_number;
297
    }else{
298
        int h_chroma_shift, v_chroma_shift;
299
        int pixel_size, size[3];
300
        AVPicture picture;
301

    
302
        avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
303

    
304
        avcodec_align_dimensions(s, &w, &h);
305

    
306
        if(!(s->flags&CODEC_FLAG_EMU_EDGE)){
307
            w+= EDGE_WIDTH*2;
308
            h+= EDGE_WIDTH*2;
309
        }
310
        avpicture_fill(&picture, NULL, s->pix_fmt, w, h);
311
        pixel_size= picture.linesize[0]*8 / w;
312
//av_log(NULL, AV_LOG_ERROR, "%d %d %d %d\n", (int)picture.data[1], w, h, s->pix_fmt);
313
        assert(pixel_size>=1);
314
            //FIXME next ensures that linesize= 2^x uvlinesize, thats needed because some MC code assumes it
315
        if(pixel_size == 3*8)
316
            w= ALIGN(w, STRIDE_ALIGN<<h_chroma_shift);
317
        else
318
            w= ALIGN(pixel_size*w, STRIDE_ALIGN<<(h_chroma_shift+3)) / pixel_size;
319
        size[1] = avpicture_fill(&picture, NULL, s->pix_fmt, w, h);
320
        size[0] = picture.linesize[0] * h;
321
        size[1] -= size[0];
322
        if(picture.data[2])
323
            size[1]= size[2]= size[1]/2;
324
        else
325
            size[2]= 0;
326

    
327
        buf->last_pic_num= -256*256*256*64;
328
        memset(buf->base, 0, sizeof(buf->base));
329
        memset(buf->data, 0, sizeof(buf->data));
330

    
331
        for(i=0; i<3 && size[i]; i++){
332
            const int h_shift= i==0 ? 0 : h_chroma_shift;
333
            const int v_shift= i==0 ? 0 : v_chroma_shift;
334

    
335
            buf->linesize[i]= picture.linesize[i];
336

    
337
            buf->base[i]= av_malloc(size[i]+16); //FIXME 16
338
            if(buf->base[i]==NULL) return -1;
339
            memset(buf->base[i], 128, size[i]);
340

    
341
            // no edge if EDEG EMU or not planar YUV, we check for PAL8 redundantly to protect against a exploitable bug regression ...
342
            if((s->flags&CODEC_FLAG_EMU_EDGE) || (s->pix_fmt == PIX_FMT_PAL8) || !size[2])
343
                buf->data[i] = buf->base[i];
344
            else
345
                buf->data[i] = buf->base[i] + ALIGN((buf->linesize[i]*EDGE_WIDTH>>v_shift) + (EDGE_WIDTH>>h_shift), STRIDE_ALIGN);
346
        }
347
        pic->age= 256*256*256*64;
348
    }
349
    pic->type= FF_BUFFER_TYPE_INTERNAL;
350

    
351
    for(i=0; i<4; i++){
352
        pic->base[i]= buf->base[i];
353
        pic->data[i]= buf->data[i];
354
        pic->linesize[i]= buf->linesize[i];
355
    }
356
    s->internal_buffer_count++;
357

    
358
    return 0;
359
}
360

    
361
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic){
362
    int i;
363
    InternalBuffer *buf, *last, temp;
364

    
365
    assert(pic->type==FF_BUFFER_TYPE_INTERNAL);
366
    assert(s->internal_buffer_count);
367

    
368
    buf = NULL; /* avoids warning */
369
    for(i=0; i<s->internal_buffer_count; i++){ //just 3-5 checks so is not worth to optimize
370
        buf= &((InternalBuffer*)s->internal_buffer)[i];
371
        if(buf->data[0] == pic->data[0])
372
            break;
373
    }
374
    assert(i < s->internal_buffer_count);
375
    s->internal_buffer_count--;
376
    last = &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count];
377

    
378
    temp= *buf;
379
    *buf= *last;
380
    *last= temp;
381

    
382
    for(i=0; i<3; i++){
383
        pic->data[i]=NULL;
384
//        pic->base[i]=NULL;
385
    }
386
//printf("R%X\n", pic->opaque);
387
}
388

    
389
int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic){
390
    AVFrame temp_pic;
391
    int i;
392

    
393
    /* If no picture return a new buffer */
394
    if(pic->data[0] == NULL) {
395
        /* We will copy from buffer, so must be readable */
396
        pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
397
        return s->get_buffer(s, pic);
398
    }
399

    
400
    /* If internal buffer type return the same buffer */
401
    if(pic->type == FF_BUFFER_TYPE_INTERNAL)
402
        return 0;
403

    
404
    /*
405
     * Not internal type and reget_buffer not overridden, emulate cr buffer
406
     */
407
    temp_pic = *pic;
408
    for(i = 0; i < 4; i++)
409
        pic->data[i] = pic->base[i] = NULL;
410
    pic->opaque = NULL;
411
    /* Allocate new frame */
412
    if (s->get_buffer(s, pic))
413
        return -1;
414
    /* Copy image data from old buffer to new buffer */
415
    img_copy((AVPicture*)pic, (AVPicture*)&temp_pic, s->pix_fmt, s->width,
416
             s->height);
417
    s->release_buffer(s, &temp_pic); // Release old frame
418
    return 0;
419
}
420

    
421
int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count){
422
    int i;
423

    
424
    for(i=0; i<count; i++){
425
        int r= func(c, arg[i]);
426
        if(ret) ret[i]= r;
427
    }
428
    return 0;
429
}
430

    
431
enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt){
432
    return fmt[0];
433
}
434

    
435
static const char* context_to_name(void* ptr) {
436
    AVCodecContext *avc= ptr;
437

    
438
    if(avc && avc->codec && avc->codec->name)
439
        return avc->codec->name;
440
    else
441
        return "NULL";
442
}
443

    
444
#define OFFSET(x) (int)&((AVCodecContext*)0)->x
445
#define DEFAULT 0 //should be NAN but it doesnt work as its not a constant in glibc as required by ANSI/ISO C
446
//these names are too long to be readable
447
#define V AV_OPT_FLAG_VIDEO_PARAM
448
#define A AV_OPT_FLAG_AUDIO_PARAM
449
#define S AV_OPT_FLAG_SUBTITLE_PARAM
450
#define E AV_OPT_FLAG_ENCODING_PARAM
451
#define D AV_OPT_FLAG_DECODING_PARAM
452

    
453
static AVOption options[]={
454
{"bit_rate", NULL, OFFSET(bit_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|A|E},
455
{"bit_rate_tolerance", NULL, OFFSET(bit_rate_tolerance), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
456
{"flags", NULL, OFFSET(flags), FF_OPT_TYPE_FLAGS, DEFAULT, INT_MIN, INT_MAX, V|A|E|D, "flags"},
457
{"mv4", "use four motion vector by macroblock (mpeg4)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_4MV, INT_MIN, INT_MAX, V|E, "flags"},
458
{"obmc", "use overlapped block motion compensation (h263+)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_OBMC, INT_MIN, INT_MAX, V|E, "flags"},
459
{"qpel", "use 1/4 pel motion compensation", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_QPEL, INT_MIN, INT_MAX, V|E, "flags"},
460
{"loop", "use loop filter", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_LOOP_FILTER, INT_MIN, INT_MAX, V|E, "flags"},
461
{"qscale", "use fixed qscale", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_QSCALE, INT_MIN, INT_MAX, 0, "flags"},
462
{"gmc", "use gmc", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_GMC, INT_MIN, INT_MAX, V|E, "flags"},
463
{"mv0", "always try a mb with mv=<0,0>", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_MV0, INT_MIN, INT_MAX, V|E, "flags"},
464
{"part", "use data partitioning", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PART, INT_MIN, INT_MAX, V|E, "flags"},
465
{"input_preserved", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG_INPUT_PRESERVED, INT_MIN, INT_MAX, 0, "flags"},
466
{"pass1", "use internal 2pass ratecontrol in first  pass mode", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PASS1, INT_MIN, INT_MAX, 0, "flags"},
467
{"pass2", "use internal 2pass ratecontrol in second pass mode", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PASS2, INT_MIN, INT_MAX, 0, "flags"},
468
{"extern_huff", "use external huffman table (for mjpeg)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_EXTERN_HUFF, INT_MIN, INT_MAX, 0, "flags"},
469
{"gray", "only decode/encode grayscale", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_GRAY, INT_MIN, INT_MAX, V|E|D, "flags"},
470
{"emu_edge", "don't draw edges", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_EMU_EDGE, INT_MIN, INT_MAX, 0, "flags"},
471
{"psnr", "error[?] variables will be set during encoding", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PSNR, INT_MIN, INT_MAX, V|E, "flags"},
472
{"truncated", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG_TRUNCATED, INT_MIN, INT_MAX, 0, "flags"},
473
{"naq", "normalize adaptive quantization", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_NORMALIZE_AQP, INT_MIN, INT_MAX, V|E, "flags"},
474
{"ildct", "use interlaced dct", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_INTERLACED_DCT, INT_MIN, INT_MAX, V|E, "flags"},
475
{"low_delay", "force low delay", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_LOW_DELAY, INT_MIN, INT_MAX, V|D, "flags"},
476
{"alt", "enable alternate scantable (mpeg2/mpeg4)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_ALT_SCAN, INT_MIN, INT_MAX, V|E, "flags"},
477
{"trell", "use trellis quantization", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_TRELLIS_QUANT, INT_MIN, INT_MAX, V|E, "flags"},
478
{"global_header", "place global headers in extradata instead of every keyframe", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_GLOBAL_HEADER, INT_MIN, INT_MAX, 0, "flags"},
479
{"bitexact", "use only bitexact stuff (except (i)dct)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_BITEXACT, INT_MIN, INT_MAX, A|V|S|D|E, "flags"},
480
{"aic", "h263 advanced intra coding / mpeg4 ac prediction", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_AC_PRED, INT_MIN, INT_MAX, V|E, "flags"},
481
{"umv", "use unlimited motion vectors", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_H263P_UMV, INT_MIN, INT_MAX, V|E, "flags"},
482
{"cbp", "use rate distortion optimization for cbp", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_CBP_RD, INT_MIN, INT_MAX, V|E, "flags"},
483
{"qprd", "use rate distortion optimization for qp selection", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_QP_RD, INT_MIN, INT_MAX, V|E, "flags"},
484
{"aiv", "h263 alternative inter vlc", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_H263P_AIV, INT_MIN, INT_MAX, V|E, "flags"},
485
{"slice", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG_H263P_SLICE_STRUCT, INT_MIN, INT_MAX, V|E, "flags"},
486
{"ilme", "interlaced motion estimation", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_INTERLACED_ME, INT_MIN, INT_MAX, V|E, "flags"},
487
{"scan_offset", "will reserve space for svcd scan offset user data", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_SVCD_SCAN_OFFSET, INT_MIN, INT_MAX, V|E, "flags"},
488
{"cgop", "closed gop", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_CLOSED_GOP, INT_MIN, INT_MAX, V|E, "flags"},
489
{"fast", "allow non spec compliant speedup tricks", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_FAST, INT_MIN, INT_MAX, V|E, "flags2"},
490
{"sgop", "strictly enforce gop size", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_STRICT_GOP, INT_MIN, INT_MAX, V|E, "flags2"},
491
{"noout", "skip bitstream encoding", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_NO_OUTPUT, INT_MIN, INT_MAX, V|E, "flags2"},
492
{"local_header", "place global headers at every keyframe instead of in extradata", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_LOCAL_HEADER, INT_MIN, INT_MAX, V|E, "flags2"},
493
{"sub_id", NULL, OFFSET(sub_id), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
494
{"me_method", NULL, OFFSET(me_method), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "me_method"},
495
{"extradata_size", NULL, OFFSET(extradata_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
496
{"time_base", NULL, OFFSET(time_base), FF_OPT_TYPE_RATIONAL, DEFAULT, INT_MIN, INT_MAX},
497
{"gop_size", NULL, OFFSET(gop_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
498
{"rate_emu", NULL, OFFSET(rate_emu), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
499
{"sample_rate", NULL, OFFSET(sample_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
500
{"channels", NULL, OFFSET(channels), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
501
{"cutoff", "set cutoff bandwidth", OFFSET(cutoff), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, A|E},
502
{"frame_size", NULL, OFFSET(frame_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
503
{"frame_number", NULL, OFFSET(frame_number), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
504
{"real_pict_num", NULL, OFFSET(real_pict_num), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
505
{"delay", NULL, OFFSET(delay), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
506
{"qcompress", NULL, OFFSET(qcompress), FF_OPT_TYPE_FLOAT, DEFAULT, FLT_MIN, FLT_MAX, V|E},
507
{"qblur", NULL, OFFSET(qblur), FF_OPT_TYPE_FLOAT, DEFAULT, FLT_MIN, FLT_MAX, V|E},
508
{"qmin", NULL, OFFSET(qmin), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
509
{"qmax", NULL, OFFSET(qmax), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
510
{"max_qdiff", NULL, OFFSET(max_qdiff), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
511
{"max_b_frames", NULL, OFFSET(max_b_frames), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
512
{"b_quant_factor", NULL, OFFSET(b_quant_factor), FF_OPT_TYPE_FLOAT, DEFAULT, FLT_MIN, FLT_MAX, V|E},
513
{"rc_strategy", NULL, OFFSET(rc_strategy), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
514
{"b_strategy", NULL, OFFSET(b_frame_strategy), FF_OPT_TYPE_INT, 0, INT_MIN, INT_MAX, V|E},
515
{"hurry_up", NULL, OFFSET(hurry_up), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D},
516
{"rtp_mode", NULL, OFFSET(rtp_mode), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
517
{"rtp_payload_size", NULL, OFFSET(rtp_payload_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
518
{"mv_bits", NULL, OFFSET(mv_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
519
{"header_bits", NULL, OFFSET(header_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
520
{"i_tex_bits", NULL, OFFSET(i_tex_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
521
{"p_tex_bits", NULL, OFFSET(p_tex_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
522
{"i_count", NULL, OFFSET(i_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
523
{"p_count", NULL, OFFSET(p_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
524
{"skip_count", NULL, OFFSET(skip_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
525
{"misc_bits", NULL, OFFSET(misc_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
526
{"frame_bits", NULL, OFFSET(frame_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
527
{"codec_tag", NULL, OFFSET(codec_tag), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
528
{"bugs", NULL, OFFSET(workaround_bugs), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D, "bug"},
529
{"autodetect", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_AUTODETECT, INT_MIN, INT_MAX, V|D, "bug"},
530
{"old_msmpeg4", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_OLD_MSMPEG4, INT_MIN, INT_MAX, V|D, "bug"},
531
{"xvid_ilace", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_XVID_ILACE, INT_MIN, INT_MAX, V|D, "bug"},
532
{"ump4", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_UMP4, INT_MIN, INT_MAX, V|D, "bug"},
533
{"no_padding", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_NO_PADDING, INT_MIN, INT_MAX, V|D, "bug"},
534
{"amv", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_AMV, INT_MIN, INT_MAX, V|D, "bug"},
535
{"ac_vlc", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_AC_VLC, INT_MIN, INT_MAX, V|D, "bug"},
536
{"qpel_chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_QPEL_CHROMA, INT_MIN, INT_MAX, V|D, "bug"},
537
{"std_qpel", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_STD_QPEL, INT_MIN, INT_MAX, V|D, "bug"},
538
{"qpel_chroma2", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_QPEL_CHROMA2, INT_MIN, INT_MAX, V|D, "bug"},
539
{"direct_blocksize", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_DIRECT_BLOCKSIZE, INT_MIN, INT_MAX, V|D, "bug"},
540
{"edge", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_EDGE, INT_MIN, INT_MAX, V|D, "bug"},
541
{"hpel_chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_HPEL_CHROMA, INT_MIN, INT_MAX, V|D, "bug"},
542
{"dc_clip", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_DC_CLIP, INT_MIN, INT_MAX, V|D, "bug"},
543
{"ms", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_MS, INT_MIN, INT_MAX, V|D, "bug"},
544
{"lelim", "single coefficient elimination threshold for luminance (negative values also consider dc coefficient)", OFFSET(luma_elim_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
545
{"celim", "single coefficient elimination threshold for chrominance (negative values also consider dc coefficient)", OFFSET(chroma_elim_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
546
{"strict", NULL, OFFSET(strict_std_compliance), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "strict"},
547
{"very", NULL, 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_VERY_STRICT, INT_MIN, INT_MAX, V|E, "strict"},
548
{"strict", NULL, 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_STRICT, INT_MIN, INT_MAX, V|E, "strict"},
549
{"normal", NULL, 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_NORMAL, INT_MIN, INT_MAX, V|E, "strict"},
550
{"inofficial", NULL, 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_INOFFICIAL, INT_MIN, INT_MAX, V|E, "strict"},
551
{"experimental", NULL, 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_EXPERIMENTAL, INT_MIN, INT_MAX, V|E, "strict"},
552
{"b_quant_offset", NULL, OFFSET(b_quant_offset), FF_OPT_TYPE_FLOAT, DEFAULT, FLT_MIN, FLT_MAX, V|E},
553
{"er", NULL, OFFSET(error_resilience), FF_OPT_TYPE_INT, FF_ER_CAREFUL, INT_MIN, INT_MAX, V|D, "er"},
554
{"careful", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_CAREFUL, INT_MIN, INT_MAX, V|D, "er"},
555
{"compliant", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_COMPLIANT, INT_MIN, INT_MAX, V|D, "er"},
556
{"aggressive", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_AGGRESSIVE, INT_MIN, INT_MAX, V|D, "er"},
557
{"very_aggressive", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_VERY_AGGRESSIVE, INT_MIN, INT_MAX, V|D, "er"},
558
{"has_b_frames", NULL, OFFSET(has_b_frames), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
559
{"block_align", NULL, OFFSET(block_align), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
560
{"parse_only", NULL, OFFSET(parse_only), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
561
{"mpeg_quant", NULL, OFFSET(mpeg_quant), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
562
{"stats_out", NULL, OFFSET(stats_out), FF_OPT_TYPE_STRING, DEFAULT, CHAR_MIN, CHAR_MAX},
563
{"stats_in", NULL, OFFSET(stats_in), FF_OPT_TYPE_STRING, DEFAULT, CHAR_MIN, CHAR_MAX},
564
{"rc_qsquish", NULL, OFFSET(rc_qsquish), FF_OPT_TYPE_FLOAT, DEFAULT, FLT_MIN, FLT_MAX, V|E},
565
{"rc_qmod_amp", NULL, OFFSET(rc_qmod_amp), FF_OPT_TYPE_FLOAT, DEFAULT, FLT_MIN, FLT_MAX, V|E},
566
{"rc_qmod_freq", NULL, OFFSET(rc_qmod_freq), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
567
{"rc_override_count", NULL, OFFSET(rc_override_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
568
{"rc_eq", NULL, OFFSET(rc_eq), FF_OPT_TYPE_STRING, DEFAULT, CHAR_MIN, CHAR_MAX, V|E},
569
{"rc_max_rate", NULL, OFFSET(rc_max_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
570
{"rc_min_rate", NULL, OFFSET(rc_min_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
571
{"rc_buffer_size", NULL, OFFSET(rc_buffer_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
572
{"rc_buf_aggressivity", NULL, OFFSET(rc_buffer_aggressivity), FF_OPT_TYPE_FLOAT, DEFAULT, FLT_MIN, FLT_MAX, V|E},
573
{"i_quant_factor", NULL, OFFSET(i_quant_factor), FF_OPT_TYPE_FLOAT, DEFAULT, FLT_MIN, FLT_MAX, V|E},
574
{"i_quant_offset", NULL, OFFSET(i_quant_offset), FF_OPT_TYPE_FLOAT, DEFAULT, FLT_MIN, FLT_MAX, V|E},
575
{"rc_initial_cplx", NULL, OFFSET(rc_initial_cplx), FF_OPT_TYPE_FLOAT, DEFAULT, FLT_MIN, FLT_MAX, V|E},
576
{"dct", NULL, OFFSET(dct_algo), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, V|E, "dct"},
577
{"auto", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_AUTO, INT_MIN, INT_MAX, V|E, "dct"},
578
{"fastint", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_FASTINT, INT_MIN, INT_MAX, V|E, "dct"},
579
{"int", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_INT, INT_MIN, INT_MAX, V|E, "dct"},
580
{"mmx", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_MMX, INT_MIN, INT_MAX, V|E, "dct"},
581
{"mlib", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_MLIB, INT_MIN, INT_MAX, V|E, "dct"},
582
{"altivec", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_ALTIVEC, INT_MIN, INT_MAX, V|E, "dct"},
583
{"faan", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_FAAN, INT_MIN, INT_MAX, V|E, "dct"},
584
{"lumi_mask", "lumimasking", OFFSET(lumi_masking), FF_OPT_TYPE_FLOAT, 0, FLT_MIN, FLT_MAX, V|E},
585
{"tcplx_mask", "temporal complexity masking", OFFSET(temporal_cplx_masking), FF_OPT_TYPE_FLOAT, 0, FLT_MIN, FLT_MAX, V|E},
586
{"scplx_mask", "spatial complexity masking", OFFSET(spatial_cplx_masking), FF_OPT_TYPE_FLOAT, 0, FLT_MIN, FLT_MAX, V|E},
587
{"p_mask", "inter masking", OFFSET(p_masking), FF_OPT_TYPE_FLOAT, 0, FLT_MIN, FLT_MAX, V|E},
588
{"dark_mask", "darkness masking", OFFSET(dark_masking), FF_OPT_TYPE_FLOAT, 0, FLT_MIN, FLT_MAX, V|E},
589
{"unused", NULL, OFFSET(unused), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
590
{"idct", NULL, OFFSET(idct_algo), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, V|E|D, "idct"},
591
{"auto", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_AUTO, INT_MIN, INT_MAX, V|E|D, "idct"},
592
{"int", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_INT, INT_MIN, INT_MAX, V|E|D, "idct"},
593
{"simple", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLE, INT_MIN, INT_MAX, V|E|D, "idct"},
594
{"simplemmx", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEMMX, INT_MIN, INT_MAX, V|E|D, "idct"},
595
{"libmpeg2mmx", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_LIBMPEG2MMX, INT_MIN, INT_MAX, V|E|D, "idct"},
596
{"ps2", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_PS2, INT_MIN, INT_MAX, V|E|D, "idct"},
597
{"mlib", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_MLIB, INT_MIN, INT_MAX, V|E|D, "idct"},
598
{"arm", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_ARM, INT_MIN, INT_MAX, V|E|D, "idct"},
599
{"altivec", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_ALTIVEC, INT_MIN, INT_MAX, V|E|D, "idct"},
600
{"sh4", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SH4, INT_MIN, INT_MAX, V|E|D, "idct"},
601
{"simplearm", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEARM, INT_MIN, INT_MAX, V|E|D, "idct"},
602
{"h264", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_H264, INT_MIN, INT_MAX, V|E|D, "idct"},
603
{"vp3", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_VP3, INT_MIN, INT_MAX, V|E|D, "idct"},
604
{"ipp", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_IPP, INT_MIN, INT_MAX, V|E|D, "idct"},
605
{"xvidmmx", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_XVIDMMX, INT_MIN, INT_MAX, V|E|D, "idct"},
606
{"slice_count", NULL, OFFSET(slice_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
607
{"ec", NULL, OFFSET(error_concealment), FF_OPT_TYPE_FLAGS, 3, INT_MIN, INT_MAX, V|D, "ec"},
608
{"guess_mvs", NULL, 0, FF_OPT_TYPE_CONST, FF_EC_GUESS_MVS, INT_MIN, INT_MAX, V|D, "ec"},
609
{"deblock", NULL, 0, FF_OPT_TYPE_CONST, FF_EC_DEBLOCK, INT_MIN, INT_MAX, V|D, "ec"},
610
{"bits_per_sample", NULL, OFFSET(bits_per_sample), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
611
{"pred", "prediction method", OFFSET(prediction_method), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "pred"},
612
{"left", NULL, 0, FF_OPT_TYPE_CONST, FF_PRED_LEFT, INT_MIN, INT_MAX, V|E, "pred"},
613
{"plane", NULL, 0, FF_OPT_TYPE_CONST, FF_PRED_PLANE, INT_MIN, INT_MAX, V|E, "pred"},
614
{"median", NULL, 0, FF_OPT_TYPE_CONST, FF_PRED_MEDIAN, INT_MIN, INT_MAX, V|E, "pred"},
615
{"aspect", NULL, OFFSET(sample_aspect_ratio), FF_OPT_TYPE_RATIONAL, DEFAULT, 0, 10, V|E},
616
{"debug", "print specific debug info", OFFSET(debug), FF_OPT_TYPE_FLAGS, DEFAULT, 0, INT_MAX, V|A|S|E|D, "debug"},
617
{"pict", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_PICT_INFO, INT_MIN, INT_MAX, V|D, "debug"},
618
{"rc", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_RC, INT_MIN, INT_MAX, V|E, "debug"},
619
{"bitstream", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_BITSTREAM, INT_MIN, INT_MAX, V|D, "debug"},
620
{"mb_type", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_MB_TYPE, INT_MIN, INT_MAX, V|D, "debug"},
621
{"qp", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_QP, INT_MIN, INT_MAX, V|D, "debug"},
622
{"mv", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_MV, INT_MIN, INT_MAX, V|D, "debug"},
623
{"dct_coeff", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_DCT_COEFF, INT_MIN, INT_MAX, V|D, "debug"},
624
{"skip", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_SKIP, INT_MIN, INT_MAX, V|D, "debug"},
625
{"startcode", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_STARTCODE, INT_MIN, INT_MAX, V|D, "debug"},
626
{"pts", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_PTS, INT_MIN, INT_MAX, V|D, "debug"},
627
{"er", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_ER, INT_MIN, INT_MAX, V|D, "debug"},
628
{"mmco", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_MMCO, INT_MIN, INT_MAX, V|D, "debug"},
629
{"bugs", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_BUGS, INT_MIN, INT_MAX, V|D, "debug"},
630
{"vis_qp", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_QP, INT_MIN, INT_MAX, V|D, "debug"},
631
{"vis_mb_type", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_MB_TYPE, INT_MIN, INT_MAX, V|D, "debug"},
632
{"vismv", "visualize motion vectors", OFFSET(debug_mv), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, V|D, "debug_mv"},
633
{"pf", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_MV_P_FOR, INT_MIN, INT_MAX, V|D, "debug_mv"},
634
{"bf", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_MV_B_FOR, INT_MIN, INT_MAX, V|D, "debug_mv"},
635
{"bb", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_MV_B_BACK, INT_MIN, INT_MAX, V|D, "debug_mv"},
636
{"mb_qmin", NULL, OFFSET(mb_qmin), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
637
{"mb_qmax", NULL, OFFSET(mb_qmax), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
638
{"cmp", "full pel me compare function", OFFSET(me_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
639
{"subcmp", "sub pel me compare function", OFFSET(me_sub_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
640
{"mbcmp", "macroblock compare function", OFFSET(mb_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
641
{"ildctcmp", "interlaced dct compare function", OFFSET(ildct_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
642
{"dia_size", NULL, OFFSET(dia_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
643
{"last_pred", NULL, OFFSET(last_predictor_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
644
{"preme", NULL, OFFSET(pre_me), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
645
{"precmp", "pre motion estimation compare function", OFFSET(me_pre_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
646
{"sad", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_SAD, INT_MIN, INT_MAX, V|E, "cmp_func"},
647
{"sse", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_SSE, INT_MIN, INT_MAX, V|E, "cmp_func"},
648
{"satd", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_SATD, INT_MIN, INT_MAX, V|E, "cmp_func"},
649
{"dct", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_DCT, INT_MIN, INT_MAX, V|E, "cmp_func"},
650
{"psnr", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_PSNR, INT_MIN, INT_MAX, V|E, "cmp_func"},
651
{"bit", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_BIT, INT_MIN, INT_MAX, V|E, "cmp_func"},
652
{"rd", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_RD, INT_MIN, INT_MAX, V|E, "cmp_func"},
653
{"zero", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_ZERO, INT_MIN, INT_MAX, V|E, "cmp_func"},
654
{"vsad", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_VSAD, INT_MIN, INT_MAX, V|E, "cmp_func"},
655
{"vsse", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_VSSE, INT_MIN, INT_MAX, V|E, "cmp_func"},
656
{"nsse", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_NSSE, INT_MIN, INT_MAX, V|E, "cmp_func"},
657
{"w53", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_W53, INT_MIN, INT_MAX, V|E, "cmp_func"},
658
{"w97", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_W97, INT_MIN, INT_MAX, V|E, "cmp_func"},
659
{"dctmax", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_DCTMAX, INT_MIN, INT_MAX, V|E, "cmp_func"},
660
{"chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_CHROMA, INT_MIN, INT_MAX, V|E, "cmp_func"},
661
{"pre_dia_size", NULL, OFFSET(pre_dia_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
662
{"subq", "sub pel motion estimation quality", OFFSET(me_subpel_quality), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
663
{"dtg_active_format", NULL, OFFSET(dtg_active_format), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
664
{"me_range", NULL, OFFSET(me_range), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
665
{"ibias", NULL, OFFSET(intra_quant_bias), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
666
{"pbias", NULL, OFFSET(inter_quant_bias), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
667
{"color_table_id", NULL, OFFSET(color_table_id), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
668
{"internal_buffer_count", NULL, OFFSET(internal_buffer_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
669
{"global_quality", NULL, OFFSET(global_quality), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
670
{"coder", NULL, OFFSET(coder_type), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "coder"},
671
{"vlc", "variable length coder / huffman coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_VLC, INT_MIN, INT_MAX, V|E, "coder"},
672
{"ac", "arithmetic coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_AC, INT_MIN, INT_MAX, V|E, "coder"},
673
{"context", "context model", OFFSET(context_model), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
674
{"slice_flags", NULL, OFFSET(slice_flags), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
675
{"xvmc_acceleration", NULL, OFFSET(xvmc_acceleration), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
676
{"mbd", NULL, OFFSET(mb_decision), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "mbd"},
677
{"simple", NULL, 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_SIMPLE, INT_MIN, INT_MAX, V|E, "mbd"},
678
{"bits", NULL, 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_BITS, INT_MIN, INT_MAX, V|E, "mbd"},
679
{"rd", NULL, 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_RD, INT_MIN, INT_MAX, V|E, "mbd"},
680
{"stream_codec_tag", NULL, OFFSET(stream_codec_tag), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
681
{"sc_threshold", NULL, OFFSET(scenechange_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
682
{"lmin", "min lagrange factor", OFFSET(lmin), FF_OPT_TYPE_INT,  2*FF_QP2LAMBDA, 0, INT_MAX, V|E},
683
{"lmax", "max lagrange factor", OFFSET(lmax), FF_OPT_TYPE_INT, 31*FF_QP2LAMBDA, 0, INT_MAX, V|E},
684
{"nr", "noise reduction", OFFSET(noise_reduction), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
685
{"rc_init_occupancy", NULL, OFFSET(rc_initial_buffer_occupancy), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
686
{"inter_threshold", NULL, OFFSET(inter_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
687
{"flags2", NULL, OFFSET(flags2), FF_OPT_TYPE_FLAGS, DEFAULT, INT_MIN, INT_MAX, V|A|E|D, "flags2"},
688
{"error_rate", NULL, OFFSET(error_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
689
{"antialias", NULL, OFFSET(antialias_algo), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D, "aa"},
690
{"auto", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_AUTO, INT_MIN, INT_MAX, V|D, "aa"},
691
{"fastint", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_FASTINT, INT_MIN, INT_MAX, V|D, "aa"},
692
{"int", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_INT, INT_MIN, INT_MAX, V|D, "aa"},
693
{"float", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_FLOAT, INT_MIN, INT_MAX, V|D, "aa"},
694
{"qns", "quantizer noise shaping", OFFSET(quantizer_noise_shaping), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
695
{"thread_count", NULL, OFFSET(thread_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E|D},
696
{"me_threshold", "motion estimaton threshold", OFFSET(me_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
697
{"mb_threshold", NULL, OFFSET(mb_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
698
{"dc", NULL, OFFSET(intra_dc_precision), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
699
{"nssew", "nsse weight", OFFSET(nsse_weight), FF_OPT_TYPE_INT, 8, INT_MIN, INT_MAX, V|E},
700
{"skip_top", NULL, OFFSET(skip_top), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D},
701
{"skip_bottom", NULL, OFFSET(skip_bottom), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D},
702
{"profile", NULL, OFFSET(profile), FF_OPT_TYPE_INT, FF_PROFILE_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "profile"},
703
{"unknown", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "profile"},
704
{"level", NULL, OFFSET(level), FF_OPT_TYPE_INT, FF_LEVEL_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "level"},
705
{"unknown", NULL, 0, FF_OPT_TYPE_CONST, FF_LEVEL_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "level"},
706
{"lowres", NULL, OFFSET(lowres), FF_OPT_TYPE_INT, 0, 0, INT_MAX, V|D},
707
{"frame_skip_threshold", NULL, OFFSET(frame_skip_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
708
{"frame_skip_factor", NULL, OFFSET(frame_skip_factor), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
709
{"frame_skip_exp", NULL, OFFSET(frame_skip_exp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
710
{"skipcmp", "frame skip compare function", OFFSET(frame_skip_cmp), FF_OPT_TYPE_INT, FF_CMP_DCTMAX, INT_MIN, INT_MAX, V|E, "cmp_func"},
711
{"border_mask", NULL, OFFSET(border_masking), FF_OPT_TYPE_FLOAT, DEFAULT, FLT_MIN, FLT_MAX, V|E},
712
{"mb_lmin", NULL, OFFSET(mb_lmin), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
713
{"mb_lmax", NULL, OFFSET(mb_lmax), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
714
{"me_penalty_compensation", NULL, OFFSET(me_penalty_compensation), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
715
{"bidir_refine", NULL, OFFSET(bidir_refine), FF_OPT_TYPE_INT, DEFAULT, 0, 4, V|E},
716
{"brd_scale", NULL, OFFSET(brd_scale), FF_OPT_TYPE_INT, DEFAULT, 0, 10, V|E},
717
{"crf", NULL, OFFSET(crf), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
718
{"cqp", NULL, OFFSET(cqp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
719
{"keyint_min", NULL, OFFSET(keyint_min), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
720
{"refs", NULL, OFFSET(refs), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
721
{"chromaoffset", NULL, OFFSET(chromaoffset), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
722
{"bframebias", NULL, OFFSET(bframebias), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
723
{"trellis", NULL, OFFSET(trellis), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|A|E},
724
{"directpred", NULL, OFFSET(directpred), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
725
{"bpyramid", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_BPYRAMID, INT_MIN, INT_MAX, V|E, "flags2"},
726
{"wpred", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_WPRED, INT_MIN, INT_MAX, V|E, "flags2"},
727
{"mixed_refs", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_MIXED_REFS, INT_MIN, INT_MAX, V|E, "flags2"},
728
{"8x8dct", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_8X8DCT, INT_MIN, INT_MAX, V|E, "flags2"},
729
{"fastpskip", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_FASTPSKIP, INT_MIN, INT_MAX, V|E, "flags2"},
730
{"aud", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_AUD, INT_MIN, INT_MAX, V|E, "flags2"},
731
{"brdo", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_BRDO, INT_MIN, INT_MAX, V|E, "flags2"},
732
{"complexityblur", NULL, OFFSET(complexityblur), FF_OPT_TYPE_FLOAT, DEFAULT, FLT_MIN, FLT_MAX, V|E},
733
{"deblockalpha", NULL, OFFSET(deblockalpha), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
734
{"deblockbeta", NULL, OFFSET(deblockbeta), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
735
{"partitions", NULL, OFFSET(partitions), FF_OPT_TYPE_FLAGS, DEFAULT, INT_MIN, INT_MAX, V|E, "partitions"},
736
{"parti4x4", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_I4X4, INT_MIN, INT_MAX, V|E, "partitions"},
737
{"parti8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_I8X8, INT_MIN, INT_MAX, V|E, "partitions"},
738
{"partp4x4", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_P4X4, INT_MIN, INT_MAX, V|E, "partitions"},
739
{"partp8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_P8X8, INT_MIN, INT_MAX, V|E, "partitions"},
740
{"partb8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_B8X8, INT_MIN, INT_MAX, V|E, "partitions"},
741
{"sc_factor", NULL, OFFSET(scenechange_factor), FF_OPT_TYPE_INT, 6, 0, INT_MAX, V|E},
742
{"mv0_threshold", NULL, OFFSET(mv0_threshold), FF_OPT_TYPE_INT, 256, 0, INT_MAX, V|E},
743
{"ivlc", "intra vlc table", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_INTRA_VLC, INT_MIN, INT_MAX, V|E, "flags2"},
744
{"b_sensitivity", NULL, OFFSET(b_sensitivity), FF_OPT_TYPE_INT, 40, 1, INT_MAX, V|E},
745
{NULL},
746
};
747

    
748
#undef A
749
#undef V
750

    
751
static AVClass av_codec_context_class = { "AVCodecContext", context_to_name, options };
752

    
753
void avcodec_get_context_defaults(AVCodecContext *s){
754
    memset(s, 0, sizeof(AVCodecContext));
755

    
756
    s->av_class= &av_codec_context_class;
757
    s->bit_rate= 800*1000;
758
    s->bit_rate_tolerance= s->bit_rate*10;
759
    s->qmin= 2;
760
    s->qmax= 31;
761
    s->mb_lmin= FF_QP2LAMBDA * 2;
762
    s->mb_lmax= FF_QP2LAMBDA * 31;
763
    s->rc_eq= "tex^qComp";
764
    s->cqp = -1;
765
    s->refs = 1;
766
    s->directpred = 2;
767
    s->qcompress= 0.5;
768
    s->complexityblur = 20.0;
769
    s->keyint_min = 25;
770
    s->flags2 = CODEC_FLAG2_FASTPSKIP;
771
    s->max_qdiff= 3;
772
    s->b_quant_factor=1.25;
773
    s->b_quant_offset=1.25;
774
    s->i_quant_factor=-0.8;
775
    s->i_quant_offset=0.0;
776
    s->error_concealment= 3;
777
    s->error_resilience= 1;
778
    s->workaround_bugs= FF_BUG_AUTODETECT;
779
    s->time_base= (AVRational){0,1};
780
    s->gop_size= 50;
781
    s->me_method= ME_EPZS;
782
    s->get_buffer= avcodec_default_get_buffer;
783
    s->release_buffer= avcodec_default_release_buffer;
784
    s->get_format= avcodec_default_get_format;
785
    s->execute= avcodec_default_execute;
786
    s->thread_count=1;
787
    s->me_subpel_quality=8;
788
    s->lmin= FF_QP2LAMBDA * s->qmin;
789
    s->lmax= FF_QP2LAMBDA * s->qmax;
790
    s->sample_aspect_ratio= (AVRational){0,1};
791
    s->ildct_cmp= FF_CMP_VSAD;
792
    s->profile= FF_PROFILE_UNKNOWN;
793
    s->level= FF_LEVEL_UNKNOWN;
794
    s->me_penalty_compensation= 256;
795
    s->pix_fmt= PIX_FMT_NONE;
796
    s->frame_skip_cmp= FF_CMP_DCTMAX;
797
    s->nsse_weight= 8;
798
    s->sample_fmt= SAMPLE_FMT_S16; // FIXME: set to NONE
799
    s->mv0_threshold= 256;
800
    s->b_sensitivity= 40;
801

    
802
    s->intra_quant_bias= FF_DEFAULT_QUANT_BIAS;
803
    s->inter_quant_bias= FF_DEFAULT_QUANT_BIAS;
804
    s->palctrl = NULL;
805
    s->reget_buffer= avcodec_default_reget_buffer;
806
}
807

    
808
/**
809
 * allocates a AVCodecContext and set it to defaults.
810
 * this can be deallocated by simply calling free()
811
 */
812
AVCodecContext *avcodec_alloc_context(void){
813
    AVCodecContext *avctx= av_malloc(sizeof(AVCodecContext));
814

    
815
    if(avctx==NULL) return NULL;
816

    
817
    avcodec_get_context_defaults(avctx);
818

    
819
    return avctx;
820
}
821

    
822
void avcodec_get_frame_defaults(AVFrame *pic){
823
    memset(pic, 0, sizeof(AVFrame));
824

    
825
    pic->pts= AV_NOPTS_VALUE;
826
    pic->key_frame= 1;
827
}
828

    
829
/**
830
 * allocates a AVPFrame and set it to defaults.
831
 * this can be deallocated by simply calling free()
832
 */
833
AVFrame *avcodec_alloc_frame(void){
834
    AVFrame *pic= av_malloc(sizeof(AVFrame));
835

    
836
    if(pic==NULL) return NULL;
837

    
838
    avcodec_get_frame_defaults(pic);
839

    
840
    return pic;
841
}
842

    
843
int avcodec_open(AVCodecContext *avctx, AVCodec *codec)
844
{
845
    int ret= -1;
846

    
847
    entangled_thread_counter++;
848
    if(entangled_thread_counter != 1){
849
        av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
850
        goto end;
851
    }
852

    
853
    if(avctx->codec)
854
        goto end;
855

    
856
    if (codec->priv_data_size > 0) {
857
        avctx->priv_data = av_mallocz(codec->priv_data_size);
858
        if (!avctx->priv_data)
859
            goto end;
860
    } else {
861
        avctx->priv_data = NULL;
862
    }
863

    
864
    if(avctx->coded_width && avctx->coded_height)
865
        avcodec_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
866
    else if(avctx->width && avctx->height)
867
        avcodec_set_dimensions(avctx, avctx->width, avctx->height);
868

    
869
    if((avctx->coded_width||avctx->coded_height) && avcodec_check_dimensions(avctx,avctx->coded_width,avctx->coded_height)){
870
        av_freep(&avctx->priv_data);
871
        goto end;
872
    }
873

    
874
    avctx->codec = codec;
875
    avctx->codec_id = codec->id;
876
    avctx->frame_number = 0;
877
    ret = avctx->codec->init(avctx);
878
    if (ret < 0) {
879
        av_freep(&avctx->priv_data);
880
        avctx->codec= NULL;
881
        goto end;
882
    }
883
    ret=0;
884
end:
885
    entangled_thread_counter--;
886
    return ret;
887
}
888

    
889
int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
890
                         const short *samples)
891
{
892
    if(buf_size < FF_MIN_BUFFER_SIZE && 0){
893
        av_log(avctx, AV_LOG_ERROR, "buffer smaller then minimum size\n");
894
        return -1;
895
    }
896
    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || samples){
897
        int ret = avctx->codec->encode(avctx, buf, buf_size, (void *)samples);
898
        avctx->frame_number++;
899
        return ret;
900
    }else
901
        return 0;
902
}
903

    
904
int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
905
                         const AVFrame *pict)
906
{
907
    if(buf_size < FF_MIN_BUFFER_SIZE){
908
        av_log(avctx, AV_LOG_ERROR, "buffer smaller then minimum size\n");
909
        return -1;
910
    }
911
    if(avcodec_check_dimensions(avctx,avctx->width,avctx->height))
912
        return -1;
913
    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || pict){
914
        int ret = avctx->codec->encode(avctx, buf, buf_size, (void *)pict);
915
        avctx->frame_number++;
916
        emms_c(); //needed to avoid an emms_c() call before every return;
917

    
918
        return ret;
919
    }else
920
        return 0;
921
}
922

    
923
int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
924
                            const AVSubtitle *sub)
925
{
926
    int ret;
927
    ret = avctx->codec->encode(avctx, buf, buf_size, (void *)sub);
928
    avctx->frame_number++;
929
    return ret;
930
}
931

    
932
/**
933
 * decode a frame.
934
 * @param buf bitstream buffer, must be FF_INPUT_BUFFER_PADDING_SIZE larger then the actual read bytes
935
 * because some optimized bitstream readers read 32 or 64 bit at once and could read over the end
936
 * @param buf_size the size of the buffer in bytes
937
 * @param got_picture_ptr zero if no frame could be decompressed, Otherwise, it is non zero
938
 * @return -1 if error, otherwise return the number of
939
 * bytes used.
940
 */
941
int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
942
                         int *got_picture_ptr,
943
                         uint8_t *buf, int buf_size)
944
{
945
    int ret;
946

    
947
    *got_picture_ptr= 0;
948
    if((avctx->coded_width||avctx->coded_height) && avcodec_check_dimensions(avctx,avctx->coded_width,avctx->coded_height))
949
        return -1;
950
    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || buf_size){
951
        ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
952
                                buf, buf_size);
953

    
954
        emms_c(); //needed to avoid an emms_c() call before every return;
955

    
956
        if (*got_picture_ptr)
957
            avctx->frame_number++;
958
    }else
959
        ret= 0;
960

    
961
    return ret;
962
}
963

    
964
/* decode an audio frame. return -1 if error, otherwise return the
965
   *number of bytes used. If no frame could be decompressed,
966
   *frame_size_ptr is zero. Otherwise, it is the decompressed frame
967
   *size in BYTES. */
968
int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples,
969
                         int *frame_size_ptr,
970
                         uint8_t *buf, int buf_size)
971
{
972
    int ret;
973

    
974
    *frame_size_ptr= 0;
975
    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || buf_size){
976
        ret = avctx->codec->decode(avctx, samples, frame_size_ptr,
977
                                buf, buf_size);
978
        avctx->frame_number++;
979
    }else
980
        ret= 0;
981
    return ret;
982
}
983

    
984
/* decode a subtitle message. return -1 if error, otherwise return the
985
   *number of bytes used. If no subtitle could be decompressed,
986
   *got_sub_ptr is zero. Otherwise, the subtitle is stored in *sub. */
987
int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
988
                            int *got_sub_ptr,
989
                            const uint8_t *buf, int buf_size)
990
{
991
    int ret;
992

    
993
    *got_sub_ptr = 0;
994
    ret = avctx->codec->decode(avctx, sub, got_sub_ptr,
995
                               (uint8_t *)buf, buf_size);
996
    if (*got_sub_ptr)
997
        avctx->frame_number++;
998
    return ret;
999
}
1000

    
1001
int avcodec_close(AVCodecContext *avctx)
1002
{
1003
    entangled_thread_counter++;
1004
    if(entangled_thread_counter != 1){
1005
        av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
1006
        entangled_thread_counter--;
1007
        return -1;
1008
    }
1009

    
1010
    if (avctx->codec->close)
1011
        avctx->codec->close(avctx);
1012
    avcodec_default_free_buffers(avctx);
1013
    av_freep(&avctx->priv_data);
1014
    avctx->codec = NULL;
1015
    entangled_thread_counter--;
1016
    return 0;
1017
}
1018

    
1019
AVCodec *avcodec_find_encoder(enum CodecID id)
1020
{
1021
    AVCodec *p;
1022
    p = first_avcodec;
1023
    while (p) {
1024
        if (p->encode != NULL && p->id == id)
1025
            return p;
1026
        p = p->next;
1027
    }
1028
    return NULL;
1029
}
1030

    
1031
AVCodec *avcodec_find_encoder_by_name(const char *name)
1032
{
1033
    AVCodec *p;
1034
    p = first_avcodec;
1035
    while (p) {
1036
        if (p->encode != NULL && strcmp(name,p->name) == 0)
1037
            return p;
1038
        p = p->next;
1039
    }
1040
    return NULL;
1041
}
1042

    
1043
AVCodec *avcodec_find_decoder(enum CodecID id)
1044
{
1045
    AVCodec *p;
1046
    p = first_avcodec;
1047
    while (p) {
1048
        if (p->decode != NULL && p->id == id)
1049
            return p;
1050
        p = p->next;
1051
    }
1052
    return NULL;
1053
}
1054

    
1055
AVCodec *avcodec_find_decoder_by_name(const char *name)
1056
{
1057
    AVCodec *p;
1058
    p = first_avcodec;
1059
    while (p) {
1060
        if (p->decode != NULL && strcmp(name,p->name) == 0)
1061
            return p;
1062
        p = p->next;
1063
    }
1064
    return NULL;
1065
}
1066

    
1067
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1068
{
1069
    const char *codec_name;
1070
    AVCodec *p;
1071
    char buf1[32];
1072
    char channels_str[100];
1073
    int bitrate;
1074

    
1075
    if (encode)
1076
        p = avcodec_find_encoder(enc->codec_id);
1077
    else
1078
        p = avcodec_find_decoder(enc->codec_id);
1079

    
1080
    if (p) {
1081
        codec_name = p->name;
1082
        if (!encode && enc->codec_id == CODEC_ID_MP3) {
1083
            if (enc->sub_id == 2)
1084
                codec_name = "mp2";
1085
            else if (enc->sub_id == 1)
1086
                codec_name = "mp1";
1087
        }
1088
    } else if (enc->codec_id == CODEC_ID_MPEG2TS) {
1089
        /* fake mpeg2 transport stream codec (currently not
1090
           registered) */
1091
        codec_name = "mpeg2ts";
1092
    } else if (enc->codec_name[0] != '\0') {
1093
        codec_name = enc->codec_name;
1094
    } else {
1095
        /* output avi tags */
1096
        if(   isprint(enc->codec_tag&0xFF) && isprint((enc->codec_tag>>8)&0xFF)
1097
           && isprint((enc->codec_tag>>16)&0xFF) && isprint((enc->codec_tag>>24)&0xFF)){
1098
            snprintf(buf1, sizeof(buf1), "%c%c%c%c / 0x%04X",
1099
                     enc->codec_tag & 0xff,
1100
                     (enc->codec_tag >> 8) & 0xff,
1101
                     (enc->codec_tag >> 16) & 0xff,
1102
                     (enc->codec_tag >> 24) & 0xff,
1103
                      enc->codec_tag);
1104
        } else {
1105
            snprintf(buf1, sizeof(buf1), "0x%04x", enc->codec_tag);
1106
        }
1107
        codec_name = buf1;
1108
    }
1109

    
1110
    switch(enc->codec_type) {
1111
    case CODEC_TYPE_VIDEO:
1112
        snprintf(buf, buf_size,
1113
                 "Video: %s%s",
1114
                 codec_name, enc->mb_decision ? " (hq)" : "");
1115
        if (enc->pix_fmt != PIX_FMT_NONE) {
1116
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1117
                     ", %s",
1118
                     avcodec_get_pix_fmt_name(enc->pix_fmt));
1119
        }
1120
        if (enc->width) {
1121
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1122
                     ", %dx%d",
1123
                     enc->width, enc->height);
1124
            if(av_log_get_level() >= AV_LOG_DEBUG){
1125
                int g= ff_gcd(enc->time_base.num, enc->time_base.den);
1126
                snprintf(buf + strlen(buf), buf_size - strlen(buf),
1127
                     ", %d/%d",
1128
                     enc->time_base.num/g, enc->time_base.den/g);
1129
            }
1130
        }
1131
        if (encode) {
1132
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1133
                     ", q=%d-%d", enc->qmin, enc->qmax);
1134
        }
1135
        bitrate = enc->bit_rate;
1136
        break;
1137
    case CODEC_TYPE_AUDIO:
1138
        snprintf(buf, buf_size,
1139
                 "Audio: %s",
1140
                 codec_name);
1141
        switch (enc->channels) {
1142
            case 1:
1143
                strcpy(channels_str, "mono");
1144
                break;
1145
            case 2:
1146
                strcpy(channels_str, "stereo");
1147
                break;
1148
            case 6:
1149
                strcpy(channels_str, "5:1");
1150
                break;
1151
            default:
1152
                snprintf(channels_str, sizeof(channels_str), "%d channels", enc->channels);
1153
                break;
1154
        }
1155
        if (enc->sample_rate) {
1156
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1157
                     ", %d Hz, %s",
1158
                     enc->sample_rate,
1159
                     channels_str);
1160
        }
1161

    
1162
        /* for PCM codecs, compute bitrate directly */
1163
        switch(enc->codec_id) {
1164
        case CODEC_ID_PCM_S32LE:
1165
        case CODEC_ID_PCM_S32BE:
1166
        case CODEC_ID_PCM_U32LE:
1167
        case CODEC_ID_PCM_U32BE:
1168
            bitrate = enc->sample_rate * enc->channels * 32;
1169
            break;
1170
        case CODEC_ID_PCM_S24LE:
1171
        case CODEC_ID_PCM_S24BE:
1172
        case CODEC_ID_PCM_U24LE:
1173
        case CODEC_ID_PCM_U24BE:
1174
        case CODEC_ID_PCM_S24DAUD:
1175
            bitrate = enc->sample_rate * enc->channels * 24;
1176
            break;
1177
        case CODEC_ID_PCM_S16LE:
1178
        case CODEC_ID_PCM_S16BE:
1179
        case CODEC_ID_PCM_U16LE:
1180
        case CODEC_ID_PCM_U16BE:
1181
            bitrate = enc->sample_rate * enc->channels * 16;
1182
            break;
1183
        case CODEC_ID_PCM_S8:
1184
        case CODEC_ID_PCM_U8:
1185
        case CODEC_ID_PCM_ALAW:
1186
        case CODEC_ID_PCM_MULAW:
1187
            bitrate = enc->sample_rate * enc->channels * 8;
1188
            break;
1189
        default:
1190
            bitrate = enc->bit_rate;
1191
            break;
1192
        }
1193
        break;
1194
    case CODEC_TYPE_DATA:
1195
        snprintf(buf, buf_size, "Data: %s", codec_name);
1196
        bitrate = enc->bit_rate;
1197
        break;
1198
    case CODEC_TYPE_SUBTITLE:
1199
        snprintf(buf, buf_size, "Subtitle: %s", codec_name);
1200
        bitrate = enc->bit_rate;
1201
        break;
1202
    default:
1203
        snprintf(buf, buf_size, "Invalid Codec type %d", enc->codec_type);
1204
        return;
1205
    }
1206
    if (encode) {
1207
        if (enc->flags & CODEC_FLAG_PASS1)
1208
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1209
                     ", pass 1");
1210
        if (enc->flags & CODEC_FLAG_PASS2)
1211
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1212
                     ", pass 2");
1213
    }
1214
    if (bitrate != 0) {
1215
        snprintf(buf + strlen(buf), buf_size - strlen(buf),
1216
                 ", %d kb/s", bitrate / 1000);
1217
    }
1218
}
1219

    
1220
unsigned avcodec_version( void )
1221
{
1222
  return LIBAVCODEC_VERSION_INT;
1223
}
1224

    
1225
unsigned avcodec_build( void )
1226
{
1227
  return LIBAVCODEC_BUILD;
1228
}
1229

    
1230
static void init_crcs(void){
1231
    av_crc04C11DB7= av_mallocz_static(sizeof(AVCRC) * 257);
1232
    av_crc8005    = av_mallocz_static(sizeof(AVCRC) * 257);
1233
    av_crc07      = av_mallocz_static(sizeof(AVCRC) * 257);
1234
    av_crc_init(av_crc04C11DB7, 0, 32, 0x04c11db7, sizeof(AVCRC)*257);
1235
    av_crc_init(av_crc8005    , 0, 16, 0x8005    , sizeof(AVCRC)*257);
1236
    av_crc_init(av_crc07      , 0,  8, 0x07      , sizeof(AVCRC)*257);
1237
}
1238

    
1239
/* must be called before any other functions */
1240
void avcodec_init(void)
1241
{
1242
    static int inited = 0;
1243

    
1244
    if (inited != 0)
1245
        return;
1246
    inited = 1;
1247

    
1248
    dsputil_static_init();
1249
    init_crcs();
1250
}
1251

    
1252
/**
1253
 * Flush buffers, should be called when seeking or when swicthing to a different stream.
1254
 */
1255
void avcodec_flush_buffers(AVCodecContext *avctx)
1256
{
1257
    if(avctx->codec->flush)
1258
        avctx->codec->flush(avctx);
1259
}
1260

    
1261
void avcodec_default_free_buffers(AVCodecContext *s){
1262
    int i, j;
1263

    
1264
    if(s->internal_buffer==NULL) return;
1265

    
1266
    for(i=0; i<INTERNAL_BUFFER_SIZE; i++){
1267
        InternalBuffer *buf= &((InternalBuffer*)s->internal_buffer)[i];
1268
        for(j=0; j<4; j++){
1269
            av_freep(&buf->base[j]);
1270
            buf->data[j]= NULL;
1271
        }
1272
    }
1273
    av_freep(&s->internal_buffer);
1274

    
1275
    s->internal_buffer_count=0;
1276
}
1277

    
1278
char av_get_pict_type_char(int pict_type){
1279
    switch(pict_type){
1280
    case I_TYPE: return 'I';
1281
    case P_TYPE: return 'P';
1282
    case B_TYPE: return 'B';
1283
    case S_TYPE: return 'S';
1284
    case SI_TYPE:return 'i';
1285
    case SP_TYPE:return 'p';
1286
    default:     return '?';
1287
    }
1288
}
1289

    
1290
/* av_log API */
1291

    
1292
static int av_log_level = AV_LOG_INFO;
1293

    
1294
static void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl)
1295
{
1296
    static int print_prefix=1;
1297
    AVClass* avc= ptr ? *(AVClass**)ptr : NULL;
1298
    if(level>av_log_level)
1299
        return;
1300
#undef fprintf
1301
    if(print_prefix && avc) {
1302
            fprintf(stderr, "[%s @ %p]", avc->item_name(ptr), avc);
1303
    }
1304
#define fprintf please_use_av_log
1305

    
1306
    print_prefix= strstr(fmt, "\n") != NULL;
1307

    
1308
    vfprintf(stderr, fmt, vl);
1309
}
1310

    
1311
static void (*av_log_callback)(void*, int, const char*, va_list) = av_log_default_callback;
1312

    
1313
void av_log(void* avcl, int level, const char *fmt, ...)
1314
{
1315
    va_list vl;
1316
    va_start(vl, fmt);
1317
    av_vlog(avcl, level, fmt, vl);
1318
    va_end(vl);
1319
}
1320

    
1321
void av_vlog(void* avcl, int level, const char *fmt, va_list vl)
1322
{
1323
    av_log_callback(avcl, level, fmt, vl);
1324
}
1325

    
1326
int av_log_get_level(void)
1327
{
1328
    return av_log_level;
1329
}
1330

    
1331
void av_log_set_level(int level)
1332
{
1333
    av_log_level = level;
1334
}
1335

    
1336
void av_log_set_callback(void (*callback)(void*, int, const char*, va_list))
1337
{
1338
    av_log_callback = callback;
1339
}
1340

    
1341
#if !defined(HAVE_THREADS)
1342
int avcodec_thread_init(AVCodecContext *s, int thread_count){
1343
    return -1;
1344
}
1345
#endif
1346

    
1347
unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1348
{
1349
    unsigned int n = 0;
1350

    
1351
    while(v >= 0xff) {
1352
        *s++ = 0xff;
1353
        v -= 0xff;
1354
        n++;
1355
    }
1356
    *s = v;
1357
    n++;
1358
    return n;
1359
}
1360

    
1361
/* Wrapper to work around the lack of mkstemp() on mingw/cygin.
1362
 * Also, tries to create file in /tmp first, if possible.
1363
 * *prefix can be a character constant; *filename will be allocated internally.
1364
 * Returns file descriptor of opened file (or -1 on error)
1365
 * and opened file name in **filename. */
1366
int av_tempfile(char *prefix, char **filename) {
1367
    int fd=-1;
1368
#ifdef CONFIG_WIN32
1369
    *filename = tempnam(".", prefix);
1370
#else
1371
    size_t len = strlen(prefix) + 12; /* room for "/tmp/" and "XXXXXX\0" */
1372
    *filename = av_malloc(len);
1373
#endif
1374
    /* -----common section-----*/
1375
    if (*filename == NULL) {
1376
        av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot allocate file name\n");
1377
        return -1;
1378
    }
1379
#ifdef CONFIG_WIN32
1380
    fd = open(*filename, _O_RDWR | _O_BINARY | _O_CREAT, 0444);
1381
#else
1382
    snprintf(*filename, len, "/tmp/%sXXXXXX", prefix);
1383
    fd = mkstemp(*filename);
1384
    if (fd < 0) {
1385
        snprintf(*filename, len, "./%sXXXXXX", prefix);
1386
        fd = mkstemp(*filename);
1387
    }
1388
#endif
1389
    /* -----common section-----*/
1390
    if (fd < 0) {
1391
        av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot open temporary file %s\n", *filename);
1392
        return -1;
1393
    }
1394
    return fd; /* success */
1395
}