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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 const 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
#ifdef CONFIG_SNOW_ENCODER
658
{"w53", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_W53, INT_MIN, INT_MAX, V|E, "cmp_func"},
659
{"w97", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_W97, INT_MIN, INT_MAX, V|E, "cmp_func"},
660
#endif
661
{"dctmax", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_DCTMAX, INT_MIN, INT_MAX, V|E, "cmp_func"},
662
{"chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_CHROMA, INT_MIN, INT_MAX, V|E, "cmp_func"},
663
{"pre_dia_size", NULL, OFFSET(pre_dia_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
664
{"subq", "sub pel motion estimation quality", OFFSET(me_subpel_quality), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
665
{"dtg_active_format", NULL, OFFSET(dtg_active_format), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
666
{"me_range", NULL, OFFSET(me_range), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
667
{"ibias", NULL, OFFSET(intra_quant_bias), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
668
{"pbias", NULL, OFFSET(inter_quant_bias), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
669
{"color_table_id", NULL, OFFSET(color_table_id), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
670
{"internal_buffer_count", NULL, OFFSET(internal_buffer_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
671
{"global_quality", NULL, OFFSET(global_quality), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
672
{"coder", NULL, OFFSET(coder_type), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "coder"},
673
{"vlc", "variable length coder / huffman coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_VLC, INT_MIN, INT_MAX, V|E, "coder"},
674
{"ac", "arithmetic coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_AC, INT_MIN, INT_MAX, V|E, "coder"},
675
{"context", "context model", OFFSET(context_model), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
676
{"slice_flags", NULL, OFFSET(slice_flags), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
677
{"xvmc_acceleration", NULL, OFFSET(xvmc_acceleration), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
678
{"mbd", NULL, OFFSET(mb_decision), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "mbd"},
679
{"simple", NULL, 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_SIMPLE, INT_MIN, INT_MAX, V|E, "mbd"},
680
{"bits", NULL, 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_BITS, INT_MIN, INT_MAX, V|E, "mbd"},
681
{"rd", NULL, 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_RD, INT_MIN, INT_MAX, V|E, "mbd"},
682
{"stream_codec_tag", NULL, OFFSET(stream_codec_tag), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
683
{"sc_threshold", NULL, OFFSET(scenechange_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
684
{"lmin", "min lagrange factor", OFFSET(lmin), FF_OPT_TYPE_INT,  2*FF_QP2LAMBDA, 0, INT_MAX, V|E},
685
{"lmax", "max lagrange factor", OFFSET(lmax), FF_OPT_TYPE_INT, 31*FF_QP2LAMBDA, 0, INT_MAX, V|E},
686
{"nr", "noise reduction", OFFSET(noise_reduction), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
687
{"rc_init_occupancy", NULL, OFFSET(rc_initial_buffer_occupancy), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
688
{"inter_threshold", NULL, OFFSET(inter_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
689
{"flags2", NULL, OFFSET(flags2), FF_OPT_TYPE_FLAGS, DEFAULT, INT_MIN, INT_MAX, V|A|E|D, "flags2"},
690
{"error_rate", NULL, OFFSET(error_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
691
{"antialias", NULL, OFFSET(antialias_algo), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D, "aa"},
692
{"auto", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_AUTO, INT_MIN, INT_MAX, V|D, "aa"},
693
{"fastint", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_FASTINT, INT_MIN, INT_MAX, V|D, "aa"},
694
{"int", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_INT, INT_MIN, INT_MAX, V|D, "aa"},
695
{"float", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_FLOAT, INT_MIN, INT_MAX, V|D, "aa"},
696
{"qns", "quantizer noise shaping", OFFSET(quantizer_noise_shaping), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
697
{"thread_count", NULL, OFFSET(thread_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E|D},
698
{"me_threshold", "motion estimaton threshold", OFFSET(me_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
699
{"mb_threshold", NULL, OFFSET(mb_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
700
{"dc", NULL, OFFSET(intra_dc_precision), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
701
{"nssew", "nsse weight", OFFSET(nsse_weight), FF_OPT_TYPE_INT, 8, INT_MIN, INT_MAX, V|E},
702
{"skip_top", NULL, OFFSET(skip_top), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D},
703
{"skip_bottom", NULL, OFFSET(skip_bottom), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D},
704
{"profile", NULL, OFFSET(profile), FF_OPT_TYPE_INT, FF_PROFILE_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "profile"},
705
{"unknown", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "profile"},
706
{"level", NULL, OFFSET(level), FF_OPT_TYPE_INT, FF_LEVEL_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "level"},
707
{"unknown", NULL, 0, FF_OPT_TYPE_CONST, FF_LEVEL_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "level"},
708
{"lowres", NULL, OFFSET(lowres), FF_OPT_TYPE_INT, 0, 0, INT_MAX, V|D},
709
{"frame_skip_threshold", NULL, OFFSET(frame_skip_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
710
{"frame_skip_factor", NULL, OFFSET(frame_skip_factor), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
711
{"frame_skip_exp", NULL, OFFSET(frame_skip_exp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
712
{"skipcmp", "frame skip compare function", OFFSET(frame_skip_cmp), FF_OPT_TYPE_INT, FF_CMP_DCTMAX, INT_MIN, INT_MAX, V|E, "cmp_func"},
713
{"border_mask", NULL, OFFSET(border_masking), FF_OPT_TYPE_FLOAT, DEFAULT, FLT_MIN, FLT_MAX, V|E},
714
{"mb_lmin", NULL, OFFSET(mb_lmin), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
715
{"mb_lmax", NULL, OFFSET(mb_lmax), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
716
{"me_penalty_compensation", NULL, OFFSET(me_penalty_compensation), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
717
{"bidir_refine", NULL, OFFSET(bidir_refine), FF_OPT_TYPE_INT, DEFAULT, 0, 4, V|E},
718
{"brd_scale", NULL, OFFSET(brd_scale), FF_OPT_TYPE_INT, DEFAULT, 0, 10, V|E},
719
{"crf", NULL, OFFSET(crf), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
720
{"cqp", NULL, OFFSET(cqp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
721
{"keyint_min", NULL, OFFSET(keyint_min), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
722
{"refs", NULL, OFFSET(refs), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
723
{"chromaoffset", NULL, OFFSET(chromaoffset), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
724
{"bframebias", NULL, OFFSET(bframebias), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
725
{"trellis", NULL, OFFSET(trellis), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|A|E},
726
{"directpred", NULL, OFFSET(directpred), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
727
{"bpyramid", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_BPYRAMID, INT_MIN, INT_MAX, V|E, "flags2"},
728
{"wpred", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_WPRED, INT_MIN, INT_MAX, V|E, "flags2"},
729
{"mixed_refs", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_MIXED_REFS, INT_MIN, INT_MAX, V|E, "flags2"},
730
{"8x8dct", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_8X8DCT, INT_MIN, INT_MAX, V|E, "flags2"},
731
{"fastpskip", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_FASTPSKIP, INT_MIN, INT_MAX, V|E, "flags2"},
732
{"aud", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_AUD, INT_MIN, INT_MAX, V|E, "flags2"},
733
{"brdo", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_BRDO, INT_MIN, INT_MAX, V|E, "flags2"},
734
{"complexityblur", NULL, OFFSET(complexityblur), FF_OPT_TYPE_FLOAT, DEFAULT, FLT_MIN, FLT_MAX, V|E},
735
{"deblockalpha", NULL, OFFSET(deblockalpha), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
736
{"deblockbeta", NULL, OFFSET(deblockbeta), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
737
{"partitions", NULL, OFFSET(partitions), FF_OPT_TYPE_FLAGS, DEFAULT, INT_MIN, INT_MAX, V|E, "partitions"},
738
{"parti4x4", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_I4X4, INT_MIN, INT_MAX, V|E, "partitions"},
739
{"parti8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_I8X8, INT_MIN, INT_MAX, V|E, "partitions"},
740
{"partp4x4", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_P4X4, INT_MIN, INT_MAX, V|E, "partitions"},
741
{"partp8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_P8X8, INT_MIN, INT_MAX, V|E, "partitions"},
742
{"partb8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_B8X8, INT_MIN, INT_MAX, V|E, "partitions"},
743
{"sc_factor", NULL, OFFSET(scenechange_factor), FF_OPT_TYPE_INT, 6, 0, INT_MAX, V|E},
744
{"mv0_threshold", NULL, OFFSET(mv0_threshold), FF_OPT_TYPE_INT, 256, 0, INT_MAX, V|E},
745
{"ivlc", "intra vlc table", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_INTRA_VLC, INT_MIN, INT_MAX, V|E, "flags2"},
746
{"b_sensitivity", NULL, OFFSET(b_sensitivity), FF_OPT_TYPE_INT, 40, 1, INT_MAX, V|E},
747
{"compression_level", NULL, OFFSET(compression_level), FF_OPT_TYPE_INT, FF_COMPRESSION_DEFAULT, INT_MIN, INT_MAX, V|A|E},
748
{"use_lpc", NULL, OFFSET(use_lpc), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
749
{"lpc_coeff_precision", NULL, OFFSET(lpc_coeff_precision), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, A|E},
750
{"min_prediction_order", NULL, OFFSET(min_prediction_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
751
{"max_prediction_order", NULL, OFFSET(max_prediction_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
752
{"prediction_order_method", NULL, OFFSET(prediction_order_method), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
753
{"min_partition_order", NULL, OFFSET(min_partition_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
754
{"max_partition_order", NULL, OFFSET(max_partition_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
755
{NULL},
756
};
757

    
758
#undef A
759
#undef V
760

    
761
static AVClass av_codec_context_class = { "AVCodecContext", context_to_name, options };
762

    
763
void avcodec_get_context_defaults(AVCodecContext *s){
764
    memset(s, 0, sizeof(AVCodecContext));
765

    
766
    s->av_class= &av_codec_context_class;
767
    s->bit_rate= 800*1000;
768
    s->bit_rate_tolerance= s->bit_rate*10;
769
    s->qmin= 2;
770
    s->qmax= 31;
771
    s->mb_lmin= FF_QP2LAMBDA * 2;
772
    s->mb_lmax= FF_QP2LAMBDA * 31;
773
    s->rc_eq= "tex^qComp";
774
    s->cqp = -1;
775
    s->refs = 1;
776
    s->directpred = 2;
777
    s->qcompress= 0.5;
778
    s->complexityblur = 20.0;
779
    s->keyint_min = 25;
780
    s->flags2 = CODEC_FLAG2_FASTPSKIP;
781
    s->max_qdiff= 3;
782
    s->b_quant_factor=1.25;
783
    s->b_quant_offset=1.25;
784
    s->i_quant_factor=-0.8;
785
    s->i_quant_offset=0.0;
786
    s->error_concealment= 3;
787
    s->error_resilience= 1;
788
    s->workaround_bugs= FF_BUG_AUTODETECT;
789
    s->time_base= (AVRational){0,1};
790
    s->gop_size= 50;
791
    s->me_method= ME_EPZS;
792
    s->get_buffer= avcodec_default_get_buffer;
793
    s->release_buffer= avcodec_default_release_buffer;
794
    s->get_format= avcodec_default_get_format;
795
    s->execute= avcodec_default_execute;
796
    s->thread_count=1;
797
    s->me_subpel_quality=8;
798
    s->lmin= FF_QP2LAMBDA * s->qmin;
799
    s->lmax= FF_QP2LAMBDA * s->qmax;
800
    s->sample_aspect_ratio= (AVRational){0,1};
801
    s->ildct_cmp= FF_CMP_VSAD;
802
    s->profile= FF_PROFILE_UNKNOWN;
803
    s->level= FF_LEVEL_UNKNOWN;
804
    s->me_penalty_compensation= 256;
805
    s->pix_fmt= PIX_FMT_NONE;
806
    s->frame_skip_cmp= FF_CMP_DCTMAX;
807
    s->nsse_weight= 8;
808
    s->sample_fmt= SAMPLE_FMT_S16; // FIXME: set to NONE
809
    s->mv0_threshold= 256;
810
    s->b_sensitivity= 40;
811
    s->compression_level = FF_COMPRESSION_DEFAULT;
812
    s->use_lpc = -1;
813
    s->min_prediction_order = -1;
814
    s->max_prediction_order = -1;
815
    s->prediction_order_method = -1;
816
    s->min_partition_order = -1;
817
    s->max_partition_order = -1;
818

    
819
    s->intra_quant_bias= FF_DEFAULT_QUANT_BIAS;
820
    s->inter_quant_bias= FF_DEFAULT_QUANT_BIAS;
821
    s->palctrl = NULL;
822
    s->reget_buffer= avcodec_default_reget_buffer;
823
}
824

    
825
/**
826
 * allocates a AVCodecContext and set it to defaults.
827
 * this can be deallocated by simply calling free()
828
 */
829
AVCodecContext *avcodec_alloc_context(void){
830
    AVCodecContext *avctx= av_malloc(sizeof(AVCodecContext));
831

    
832
    if(avctx==NULL) return NULL;
833

    
834
    avcodec_get_context_defaults(avctx);
835

    
836
    return avctx;
837
}
838

    
839
void avcodec_get_frame_defaults(AVFrame *pic){
840
    memset(pic, 0, sizeof(AVFrame));
841

    
842
    pic->pts= AV_NOPTS_VALUE;
843
    pic->key_frame= 1;
844
}
845

    
846
/**
847
 * allocates a AVPFrame and set it to defaults.
848
 * this can be deallocated by simply calling free()
849
 */
850
AVFrame *avcodec_alloc_frame(void){
851
    AVFrame *pic= av_malloc(sizeof(AVFrame));
852

    
853
    if(pic==NULL) return NULL;
854

    
855
    avcodec_get_frame_defaults(pic);
856

    
857
    return pic;
858
}
859

    
860
int avcodec_open(AVCodecContext *avctx, AVCodec *codec)
861
{
862
    int ret= -1;
863

    
864
    entangled_thread_counter++;
865
    if(entangled_thread_counter != 1){
866
        av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
867
        goto end;
868
    }
869

    
870
    if(avctx->codec)
871
        goto end;
872

    
873
    if (codec->priv_data_size > 0) {
874
        avctx->priv_data = av_mallocz(codec->priv_data_size);
875
        if (!avctx->priv_data)
876
            goto end;
877
    } else {
878
        avctx->priv_data = NULL;
879
    }
880

    
881
    if(avctx->coded_width && avctx->coded_height)
882
        avcodec_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
883
    else if(avctx->width && avctx->height)
884
        avcodec_set_dimensions(avctx, avctx->width, avctx->height);
885

    
886
    if((avctx->coded_width||avctx->coded_height) && avcodec_check_dimensions(avctx,avctx->coded_width,avctx->coded_height)){
887
        av_freep(&avctx->priv_data);
888
        goto end;
889
    }
890

    
891
    avctx->codec = codec;
892
    avctx->codec_id = codec->id;
893
    avctx->frame_number = 0;
894
    ret = avctx->codec->init(avctx);
895
    if (ret < 0) {
896
        av_freep(&avctx->priv_data);
897
        avctx->codec= NULL;
898
        goto end;
899
    }
900
    ret=0;
901
end:
902
    entangled_thread_counter--;
903
    return ret;
904
}
905

    
906
int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
907
                         const short *samples)
908
{
909
    if(buf_size < FF_MIN_BUFFER_SIZE && 0){
910
        av_log(avctx, AV_LOG_ERROR, "buffer smaller then minimum size\n");
911
        return -1;
912
    }
913
    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || samples){
914
        int ret = avctx->codec->encode(avctx, buf, buf_size, (void *)samples);
915
        avctx->frame_number++;
916
        return ret;
917
    }else
918
        return 0;
919
}
920

    
921
int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
922
                         const AVFrame *pict)
923
{
924
    if(buf_size < FF_MIN_BUFFER_SIZE){
925
        av_log(avctx, AV_LOG_ERROR, "buffer smaller then minimum size\n");
926
        return -1;
927
    }
928
    if(avcodec_check_dimensions(avctx,avctx->width,avctx->height))
929
        return -1;
930
    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || pict){
931
        int ret = avctx->codec->encode(avctx, buf, buf_size, (void *)pict);
932
        avctx->frame_number++;
933
        emms_c(); //needed to avoid an emms_c() call before every return;
934

    
935
        return ret;
936
    }else
937
        return 0;
938
}
939

    
940
int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
941
                            const AVSubtitle *sub)
942
{
943
    int ret;
944
    ret = avctx->codec->encode(avctx, buf, buf_size, (void *)sub);
945
    avctx->frame_number++;
946
    return ret;
947
}
948

    
949
/**
950
 * decode a frame.
951
 * @param buf bitstream buffer, must be FF_INPUT_BUFFER_PADDING_SIZE larger then the actual read bytes
952
 * because some optimized bitstream readers read 32 or 64 bit at once and could read over the end
953
 * @param buf_size the size of the buffer in bytes
954
 * @param got_picture_ptr zero if no frame could be decompressed, Otherwise, it is non zero
955
 * @return -1 if error, otherwise return the number of
956
 * bytes used.
957
 */
958
int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
959
                         int *got_picture_ptr,
960
                         uint8_t *buf, int buf_size)
961
{
962
    int ret;
963

    
964
    *got_picture_ptr= 0;
965
    if((avctx->coded_width||avctx->coded_height) && avcodec_check_dimensions(avctx,avctx->coded_width,avctx->coded_height))
966
        return -1;
967
    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || buf_size){
968
        ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
969
                                buf, buf_size);
970

    
971
        emms_c(); //needed to avoid an emms_c() call before every return;
972

    
973
        if (*got_picture_ptr)
974
            avctx->frame_number++;
975
    }else
976
        ret= 0;
977

    
978
    return ret;
979
}
980

    
981
/* decode an audio frame. return -1 if error, otherwise return the
982
   *number of bytes used. If no frame could be decompressed,
983
   *frame_size_ptr is zero. Otherwise, it is the decompressed frame
984
   *size in BYTES. */
985
int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples,
986
                         int *frame_size_ptr,
987
                         uint8_t *buf, int buf_size)
988
{
989
    int ret;
990

    
991
    *frame_size_ptr= 0;
992
    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || buf_size){
993
        ret = avctx->codec->decode(avctx, samples, frame_size_ptr,
994
                                buf, buf_size);
995
        avctx->frame_number++;
996
    }else
997
        ret= 0;
998
    return ret;
999
}
1000

    
1001
/* decode a subtitle message. return -1 if error, otherwise return the
1002
   *number of bytes used. If no subtitle could be decompressed,
1003
   *got_sub_ptr is zero. Otherwise, the subtitle is stored in *sub. */
1004
int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
1005
                            int *got_sub_ptr,
1006
                            const uint8_t *buf, int buf_size)
1007
{
1008
    int ret;
1009

    
1010
    *got_sub_ptr = 0;
1011
    ret = avctx->codec->decode(avctx, sub, got_sub_ptr,
1012
                               (uint8_t *)buf, buf_size);
1013
    if (*got_sub_ptr)
1014
        avctx->frame_number++;
1015
    return ret;
1016
}
1017

    
1018
int avcodec_close(AVCodecContext *avctx)
1019
{
1020
    entangled_thread_counter++;
1021
    if(entangled_thread_counter != 1){
1022
        av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
1023
        entangled_thread_counter--;
1024
        return -1;
1025
    }
1026

    
1027
    if (avctx->codec->close)
1028
        avctx->codec->close(avctx);
1029
    avcodec_default_free_buffers(avctx);
1030
    av_freep(&avctx->priv_data);
1031
    avctx->codec = NULL;
1032
    entangled_thread_counter--;
1033
    return 0;
1034
}
1035

    
1036
AVCodec *avcodec_find_encoder(enum CodecID id)
1037
{
1038
    AVCodec *p;
1039
    p = first_avcodec;
1040
    while (p) {
1041
        if (p->encode != NULL && p->id == id)
1042
            return p;
1043
        p = p->next;
1044
    }
1045
    return NULL;
1046
}
1047

    
1048
AVCodec *avcodec_find_encoder_by_name(const char *name)
1049
{
1050
    AVCodec *p;
1051
    p = first_avcodec;
1052
    while (p) {
1053
        if (p->encode != NULL && strcmp(name,p->name) == 0)
1054
            return p;
1055
        p = p->next;
1056
    }
1057
    return NULL;
1058
}
1059

    
1060
AVCodec *avcodec_find_decoder(enum CodecID id)
1061
{
1062
    AVCodec *p;
1063
    p = first_avcodec;
1064
    while (p) {
1065
        if (p->decode != NULL && p->id == id)
1066
            return p;
1067
        p = p->next;
1068
    }
1069
    return NULL;
1070
}
1071

    
1072
AVCodec *avcodec_find_decoder_by_name(const char *name)
1073
{
1074
    AVCodec *p;
1075
    p = first_avcodec;
1076
    while (p) {
1077
        if (p->decode != NULL && strcmp(name,p->name) == 0)
1078
            return p;
1079
        p = p->next;
1080
    }
1081
    return NULL;
1082
}
1083

    
1084
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1085
{
1086
    const char *codec_name;
1087
    AVCodec *p;
1088
    char buf1[32];
1089
    char channels_str[100];
1090
    int bitrate;
1091

    
1092
    if (encode)
1093
        p = avcodec_find_encoder(enc->codec_id);
1094
    else
1095
        p = avcodec_find_decoder(enc->codec_id);
1096

    
1097
    if (p) {
1098
        codec_name = p->name;
1099
        if (!encode && enc->codec_id == CODEC_ID_MP3) {
1100
            if (enc->sub_id == 2)
1101
                codec_name = "mp2";
1102
            else if (enc->sub_id == 1)
1103
                codec_name = "mp1";
1104
        }
1105
    } else if (enc->codec_id == CODEC_ID_MPEG2TS) {
1106
        /* fake mpeg2 transport stream codec (currently not
1107
           registered) */
1108
        codec_name = "mpeg2ts";
1109
    } else if (enc->codec_name[0] != '\0') {
1110
        codec_name = enc->codec_name;
1111
    } else {
1112
        /* output avi tags */
1113
        if(   isprint(enc->codec_tag&0xFF) && isprint((enc->codec_tag>>8)&0xFF)
1114
           && isprint((enc->codec_tag>>16)&0xFF) && isprint((enc->codec_tag>>24)&0xFF)){
1115
            snprintf(buf1, sizeof(buf1), "%c%c%c%c / 0x%04X",
1116
                     enc->codec_tag & 0xff,
1117
                     (enc->codec_tag >> 8) & 0xff,
1118
                     (enc->codec_tag >> 16) & 0xff,
1119
                     (enc->codec_tag >> 24) & 0xff,
1120
                      enc->codec_tag);
1121
        } else {
1122
            snprintf(buf1, sizeof(buf1), "0x%04x", enc->codec_tag);
1123
        }
1124
        codec_name = buf1;
1125
    }
1126

    
1127
    switch(enc->codec_type) {
1128
    case CODEC_TYPE_VIDEO:
1129
        snprintf(buf, buf_size,
1130
                 "Video: %s%s",
1131
                 codec_name, enc->mb_decision ? " (hq)" : "");
1132
        if (enc->pix_fmt != PIX_FMT_NONE) {
1133
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1134
                     ", %s",
1135
                     avcodec_get_pix_fmt_name(enc->pix_fmt));
1136
        }
1137
        if (enc->width) {
1138
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1139
                     ", %dx%d",
1140
                     enc->width, enc->height);
1141
            if(av_log_get_level() >= AV_LOG_DEBUG){
1142
                int g= ff_gcd(enc->time_base.num, enc->time_base.den);
1143
                snprintf(buf + strlen(buf), buf_size - strlen(buf),
1144
                     ", %d/%d",
1145
                     enc->time_base.num/g, enc->time_base.den/g);
1146
            }
1147
        }
1148
        if (encode) {
1149
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1150
                     ", q=%d-%d", enc->qmin, enc->qmax);
1151
        }
1152
        bitrate = enc->bit_rate;
1153
        break;
1154
    case CODEC_TYPE_AUDIO:
1155
        snprintf(buf, buf_size,
1156
                 "Audio: %s",
1157
                 codec_name);
1158
        switch (enc->channels) {
1159
            case 1:
1160
                strcpy(channels_str, "mono");
1161
                break;
1162
            case 2:
1163
                strcpy(channels_str, "stereo");
1164
                break;
1165
            case 6:
1166
                strcpy(channels_str, "5:1");
1167
                break;
1168
            default:
1169
                snprintf(channels_str, sizeof(channels_str), "%d channels", enc->channels);
1170
                break;
1171
        }
1172
        if (enc->sample_rate) {
1173
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1174
                     ", %d Hz, %s",
1175
                     enc->sample_rate,
1176
                     channels_str);
1177
        }
1178

    
1179
        /* for PCM codecs, compute bitrate directly */
1180
        switch(enc->codec_id) {
1181
        case CODEC_ID_PCM_S32LE:
1182
        case CODEC_ID_PCM_S32BE:
1183
        case CODEC_ID_PCM_U32LE:
1184
        case CODEC_ID_PCM_U32BE:
1185
            bitrate = enc->sample_rate * enc->channels * 32;
1186
            break;
1187
        case CODEC_ID_PCM_S24LE:
1188
        case CODEC_ID_PCM_S24BE:
1189
        case CODEC_ID_PCM_U24LE:
1190
        case CODEC_ID_PCM_U24BE:
1191
        case CODEC_ID_PCM_S24DAUD:
1192
            bitrate = enc->sample_rate * enc->channels * 24;
1193
            break;
1194
        case CODEC_ID_PCM_S16LE:
1195
        case CODEC_ID_PCM_S16BE:
1196
        case CODEC_ID_PCM_U16LE:
1197
        case CODEC_ID_PCM_U16BE:
1198
            bitrate = enc->sample_rate * enc->channels * 16;
1199
            break;
1200
        case CODEC_ID_PCM_S8:
1201
        case CODEC_ID_PCM_U8:
1202
        case CODEC_ID_PCM_ALAW:
1203
        case CODEC_ID_PCM_MULAW:
1204
            bitrate = enc->sample_rate * enc->channels * 8;
1205
            break;
1206
        default:
1207
            bitrate = enc->bit_rate;
1208
            break;
1209
        }
1210
        break;
1211
    case CODEC_TYPE_DATA:
1212
        snprintf(buf, buf_size, "Data: %s", codec_name);
1213
        bitrate = enc->bit_rate;
1214
        break;
1215
    case CODEC_TYPE_SUBTITLE:
1216
        snprintf(buf, buf_size, "Subtitle: %s", codec_name);
1217
        bitrate = enc->bit_rate;
1218
        break;
1219
    default:
1220
        snprintf(buf, buf_size, "Invalid Codec type %d", enc->codec_type);
1221
        return;
1222
    }
1223
    if (encode) {
1224
        if (enc->flags & CODEC_FLAG_PASS1)
1225
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1226
                     ", pass 1");
1227
        if (enc->flags & CODEC_FLAG_PASS2)
1228
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1229
                     ", pass 2");
1230
    }
1231
    if (bitrate != 0) {
1232
        snprintf(buf + strlen(buf), buf_size - strlen(buf),
1233
                 ", %d kb/s", bitrate / 1000);
1234
    }
1235
}
1236

    
1237
unsigned avcodec_version( void )
1238
{
1239
  return LIBAVCODEC_VERSION_INT;
1240
}
1241

    
1242
unsigned avcodec_build( void )
1243
{
1244
  return LIBAVCODEC_BUILD;
1245
}
1246

    
1247
static void init_crcs(void){
1248
    av_crc04C11DB7= av_mallocz_static(sizeof(AVCRC) * 257);
1249
    av_crc8005    = av_mallocz_static(sizeof(AVCRC) * 257);
1250
    av_crc07      = av_mallocz_static(sizeof(AVCRC) * 257);
1251
    av_crc_init(av_crc04C11DB7, 0, 32, 0x04c11db7, sizeof(AVCRC)*257);
1252
    av_crc_init(av_crc8005    , 0, 16, 0x8005    , sizeof(AVCRC)*257);
1253
    av_crc_init(av_crc07      , 0,  8, 0x07      , sizeof(AVCRC)*257);
1254
}
1255

    
1256
/* must be called before any other functions */
1257
void avcodec_init(void)
1258
{
1259
    static int inited = 0;
1260

    
1261
    if (inited != 0)
1262
        return;
1263
    inited = 1;
1264

    
1265
    dsputil_static_init();
1266
    init_crcs();
1267
}
1268

    
1269
/**
1270
 * Flush buffers, should be called when seeking or when swicthing to a different stream.
1271
 */
1272
void avcodec_flush_buffers(AVCodecContext *avctx)
1273
{
1274
    if(avctx->codec->flush)
1275
        avctx->codec->flush(avctx);
1276
}
1277

    
1278
void avcodec_default_free_buffers(AVCodecContext *s){
1279
    int i, j;
1280

    
1281
    if(s->internal_buffer==NULL) return;
1282

    
1283
    for(i=0; i<INTERNAL_BUFFER_SIZE; i++){
1284
        InternalBuffer *buf= &((InternalBuffer*)s->internal_buffer)[i];
1285
        for(j=0; j<4; j++){
1286
            av_freep(&buf->base[j]);
1287
            buf->data[j]= NULL;
1288
        }
1289
    }
1290
    av_freep(&s->internal_buffer);
1291

    
1292
    s->internal_buffer_count=0;
1293
}
1294

    
1295
char av_get_pict_type_char(int pict_type){
1296
    switch(pict_type){
1297
    case I_TYPE: return 'I';
1298
    case P_TYPE: return 'P';
1299
    case B_TYPE: return 'B';
1300
    case S_TYPE: return 'S';
1301
    case SI_TYPE:return 'i';
1302
    case SP_TYPE:return 'p';
1303
    default:     return '?';
1304
    }
1305
}
1306

    
1307
int av_get_bits_per_sample(enum CodecID codec_id){
1308
    switch(codec_id){
1309
    case CODEC_ID_ADPCM_SBPRO_2:
1310
        return 2;
1311
    case CODEC_ID_ADPCM_SBPRO_3:
1312
        return 3;
1313
    case CODEC_ID_ADPCM_SBPRO_4:
1314
    case CODEC_ID_ADPCM_CT:
1315
        return 4;
1316
    case CODEC_ID_PCM_ALAW:
1317
    case CODEC_ID_PCM_MULAW:
1318
    case CODEC_ID_PCM_S8:
1319
    case CODEC_ID_PCM_U8:
1320
        return 8;
1321
    case CODEC_ID_PCM_S16BE:
1322
    case CODEC_ID_PCM_S16LE:
1323
    case CODEC_ID_PCM_U16BE:
1324
    case CODEC_ID_PCM_U16LE:
1325
        return 16;
1326
    case CODEC_ID_PCM_S24DAUD:
1327
    case CODEC_ID_PCM_S24BE:
1328
    case CODEC_ID_PCM_S24LE:
1329
    case CODEC_ID_PCM_U24BE:
1330
    case CODEC_ID_PCM_U24LE:
1331
        return 24;
1332
    case CODEC_ID_PCM_S32BE:
1333
    case CODEC_ID_PCM_S32LE:
1334
    case CODEC_ID_PCM_U32BE:
1335
    case CODEC_ID_PCM_U32LE:
1336
        return 32;
1337
    default:
1338
        return 0;
1339
    }
1340
}
1341

    
1342
/* av_log API */
1343

    
1344
static int av_log_level = AV_LOG_INFO;
1345

    
1346
static void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl)
1347
{
1348
    static int print_prefix=1;
1349
    AVClass* avc= ptr ? *(AVClass**)ptr : NULL;
1350
    if(level>av_log_level)
1351
        return;
1352
#undef fprintf
1353
    if(print_prefix && avc) {
1354
            fprintf(stderr, "[%s @ %p]", avc->item_name(ptr), avc);
1355
    }
1356
#define fprintf please_use_av_log
1357

    
1358
    print_prefix= strstr(fmt, "\n") != NULL;
1359

    
1360
    vfprintf(stderr, fmt, vl);
1361
}
1362

    
1363
static void (*av_log_callback)(void*, int, const char*, va_list) = av_log_default_callback;
1364

    
1365
void av_log(void* avcl, int level, const char *fmt, ...)
1366
{
1367
    va_list vl;
1368
    va_start(vl, fmt);
1369
    av_vlog(avcl, level, fmt, vl);
1370
    va_end(vl);
1371
}
1372

    
1373
void av_vlog(void* avcl, int level, const char *fmt, va_list vl)
1374
{
1375
    av_log_callback(avcl, level, fmt, vl);
1376
}
1377

    
1378
int av_log_get_level(void)
1379
{
1380
    return av_log_level;
1381
}
1382

    
1383
void av_log_set_level(int level)
1384
{
1385
    av_log_level = level;
1386
}
1387

    
1388
void av_log_set_callback(void (*callback)(void*, int, const char*, va_list))
1389
{
1390
    av_log_callback = callback;
1391
}
1392

    
1393
#if !defined(HAVE_THREADS)
1394
int avcodec_thread_init(AVCodecContext *s, int thread_count){
1395
    return -1;
1396
}
1397
#endif
1398

    
1399
unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1400
{
1401
    unsigned int n = 0;
1402

    
1403
    while(v >= 0xff) {
1404
        *s++ = 0xff;
1405
        v -= 0xff;
1406
        n++;
1407
    }
1408
    *s = v;
1409
    n++;
1410
    return n;
1411
}
1412

    
1413
/* Wrapper to work around the lack of mkstemp() on mingw/cygin.
1414
 * Also, tries to create file in /tmp first, if possible.
1415
 * *prefix can be a character constant; *filename will be allocated internally.
1416
 * Returns file descriptor of opened file (or -1 on error)
1417
 * and opened file name in **filename. */
1418
int av_tempfile(char *prefix, char **filename) {
1419
    int fd=-1;
1420
#ifdef CONFIG_WIN32
1421
    *filename = tempnam(".", prefix);
1422
#else
1423
    size_t len = strlen(prefix) + 12; /* room for "/tmp/" and "XXXXXX\0" */
1424
    *filename = av_malloc(len);
1425
#endif
1426
    /* -----common section-----*/
1427
    if (*filename == NULL) {
1428
        av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot allocate file name\n");
1429
        return -1;
1430
    }
1431
#ifdef CONFIG_WIN32
1432
    fd = open(*filename, _O_RDWR | _O_BINARY | _O_CREAT, 0444);
1433
#else
1434
    snprintf(*filename, len, "/tmp/%sXXXXXX", prefix);
1435
    fd = mkstemp(*filename);
1436
    if (fd < 0) {
1437
        snprintf(*filename, len, "./%sXXXXXX", prefix);
1438
        fd = mkstemp(*filename);
1439
    }
1440
#endif
1441
    /* -----common section-----*/
1442
    if (fd < 0) {
1443
        av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot open temporary file %s\n", *filename);
1444
        return -1;
1445
    }
1446
    return fd; /* success */
1447
}