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

    
21
/**
22
 * @file utils.c
23
 * utils.
24
 */
25

    
26
#include "avcodec.h"
27
#include "dsputil.h"
28
#include "mpegvideo.h"
29
#include "integer.h"
30
#include "opt.h"
31
#include "crc.h"
32
#include <stdarg.h>
33
#include <limits.h>
34
#include <float.h>
35
#ifdef __MINGW32__
36
#include <fcntl.h>
37
#endif
38

    
39
const uint8_t ff_reverse[256]={
40
0x00,0x80,0x40,0xC0,0x20,0xA0,0x60,0xE0,0x10,0x90,0x50,0xD0,0x30,0xB0,0x70,0xF0,
41
0x08,0x88,0x48,0xC8,0x28,0xA8,0x68,0xE8,0x18,0x98,0x58,0xD8,0x38,0xB8,0x78,0xF8,
42
0x04,0x84,0x44,0xC4,0x24,0xA4,0x64,0xE4,0x14,0x94,0x54,0xD4,0x34,0xB4,0x74,0xF4,
43
0x0C,0x8C,0x4C,0xCC,0x2C,0xAC,0x6C,0xEC,0x1C,0x9C,0x5C,0xDC,0x3C,0xBC,0x7C,0xFC,
44
0x02,0x82,0x42,0xC2,0x22,0xA2,0x62,0xE2,0x12,0x92,0x52,0xD2,0x32,0xB2,0x72,0xF2,
45
0x0A,0x8A,0x4A,0xCA,0x2A,0xAA,0x6A,0xEA,0x1A,0x9A,0x5A,0xDA,0x3A,0xBA,0x7A,0xFA,
46
0x06,0x86,0x46,0xC6,0x26,0xA6,0x66,0xE6,0x16,0x96,0x56,0xD6,0x36,0xB6,0x76,0xF6,
47
0x0E,0x8E,0x4E,0xCE,0x2E,0xAE,0x6E,0xEE,0x1E,0x9E,0x5E,0xDE,0x3E,0xBE,0x7E,0xFE,
48
0x01,0x81,0x41,0xC1,0x21,0xA1,0x61,0xE1,0x11,0x91,0x51,0xD1,0x31,0xB1,0x71,0xF1,
49
0x09,0x89,0x49,0xC9,0x29,0xA9,0x69,0xE9,0x19,0x99,0x59,0xD9,0x39,0xB9,0x79,0xF9,
50
0x05,0x85,0x45,0xC5,0x25,0xA5,0x65,0xE5,0x15,0x95,0x55,0xD5,0x35,0xB5,0x75,0xF5,
51
0x0D,0x8D,0x4D,0xCD,0x2D,0xAD,0x6D,0xED,0x1D,0x9D,0x5D,0xDD,0x3D,0xBD,0x7D,0xFD,
52
0x03,0x83,0x43,0xC3,0x23,0xA3,0x63,0xE3,0x13,0x93,0x53,0xD3,0x33,0xB3,0x73,0xF3,
53
0x0B,0x8B,0x4B,0xCB,0x2B,0xAB,0x6B,0xEB,0x1B,0x9B,0x5B,0xDB,0x3B,0xBB,0x7B,0xFB,
54
0x07,0x87,0x47,0xC7,0x27,0xA7,0x67,0xE7,0x17,0x97,0x57,0xD7,0x37,0xB7,0x77,0xF7,
55
0x0F,0x8F,0x4F,0xCF,0x2F,0xAF,0x6F,0xEF,0x1F,0x9F,0x5F,0xDF,0x3F,0xBF,0x7F,0xFF,
56
};
57

    
58
static int volatile entangled_thread_counter=0;
59

    
60
void *av_mallocz(unsigned int size)
61
{
62
    void *ptr;
63

    
64
    ptr = av_malloc(size);
65
    if (!ptr)
66
        return NULL;
67
    memset(ptr, 0, size);
68
    return ptr;
69
}
70

    
71
char *av_strdup(const char *s)
72
{
73
    char *ptr;
74
    int len;
75
    len = strlen(s) + 1;
76
    ptr = av_malloc(len);
77
    if (!ptr)
78
        return NULL;
79
    memcpy(ptr, s, len);
80
    return ptr;
81
}
82

    
83
/**
84
 * realloc which does nothing if the block is large enough
85
 */
86
void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size)
87
{
88
    if(min_size < *size)
89
        return ptr;
90

    
91
    *size= FFMAX(17*min_size/16 + 32, min_size);
92

    
93
    return av_realloc(ptr, *size);
94
}
95

    
96

    
97
static unsigned int last_static = 0;
98
static unsigned int allocated_static = 0;
99
static void** array_static = NULL;
100

    
101
/**
102
 * allocation of static arrays - do not use for normal allocation.
103
 */
104
void *av_mallocz_static(unsigned int size)
105
{
106
    void *ptr = av_mallocz(size);
107

    
108
    if(ptr){
109
        array_static =av_fast_realloc(array_static, &allocated_static, sizeof(void*)*(last_static+1));
110
        if(!array_static)
111
            return NULL;
112
        array_static[last_static++] = ptr;
113
    }
114

    
115
    return ptr;
116
}
117

    
118
/**
119
 * same as above, but does realloc
120
 */
121

    
122
void *av_realloc_static(void *ptr, unsigned int size)
123
{
124
    int i;
125
    if(!ptr)
126
      return av_mallocz_static(size);
127
    /* Look for the old ptr */
128
    for(i = 0; i < last_static; i++) {
129
        if(array_static[i] == ptr) {
130
            array_static[i] = av_realloc(array_static[i], size);
131
            return array_static[i];
132
        }
133
    }
134
    return NULL;
135

    
136
}
137

    
138
/**
139
 * free all static arrays and reset pointers to 0.
140
 */
141
void av_free_static(void)
142
{
143
    while(last_static){
144
        av_freep(&array_static[--last_static]);
145
    }
146
    av_freep(&array_static);
147
}
148

    
149
/**
150
 * Call av_free_static automatically before it's too late
151
 */
152

    
153
static void do_free(void) __attribute__ ((destructor));
154

    
155
static void do_free(void)
156
{
157
    av_free_static();
158
}
159

    
160
/**
161
 * Frees memory and sets the pointer to NULL.
162
 * @param arg pointer to the pointer which should be freed
163
 */
164
void av_freep(void *arg)
165
{
166
    void **ptr= (void**)arg;
167
    av_free(*ptr);
168
    *ptr = NULL;
169
}
170

    
171
/* encoder management */
172
AVCodec *first_avcodec = NULL;
173

    
174
void register_avcodec(AVCodec *format)
175
{
176
    AVCodec **p;
177
    p = &first_avcodec;
178
    while (*p != NULL) p = &(*p)->next;
179
    *p = format;
180
    format->next = NULL;
181
}
182

    
183
void avcodec_set_dimensions(AVCodecContext *s, int width, int height){
184
    s->coded_width = width;
185
    s->coded_height= height;
186
    s->width = -((-width )>>s->lowres);
187
    s->height= -((-height)>>s->lowres);
188
}
189

    
190
typedef struct InternalBuffer{
191
    int last_pic_num;
192
    uint8_t *base[4];
193
    uint8_t *data[4];
194
    int linesize[4];
195
}InternalBuffer;
196

    
197
#define INTERNAL_BUFFER_SIZE 32
198

    
199
#define ALIGN(x, a) (((x)+(a)-1)&~((a)-1))
200

    
201
void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height){
202
    int w_align= 1;
203
    int h_align= 1;
204

    
205
    switch(s->pix_fmt){
206
    case PIX_FMT_YUV420P:
207
    case PIX_FMT_YUV422:
208
    case PIX_FMT_UYVY422:
209
    case PIX_FMT_YUV422P:
210
    case PIX_FMT_YUV444P:
211
    case PIX_FMT_GRAY8:
212
    case PIX_FMT_YUVJ420P:
213
    case PIX_FMT_YUVJ422P:
214
    case PIX_FMT_YUVJ444P:
215
        w_align= 16; //FIXME check for non mpeg style codecs and use less alignment
216
        h_align= 16;
217
        break;
218
    case PIX_FMT_YUV411P:
219
    case PIX_FMT_UYVY411:
220
        w_align=32;
221
        h_align=8;
222
        break;
223
    case PIX_FMT_YUV410P:
224
        if(s->codec_id == CODEC_ID_SVQ1){
225
            w_align=64;
226
            h_align=64;
227
        }
228
    case PIX_FMT_RGB555:
229
        if(s->codec_id == CODEC_ID_RPZA){
230
            w_align=4;
231
            h_align=4;
232
        }
233
    case PIX_FMT_PAL8:
234
        if(s->codec_id == CODEC_ID_SMC){
235
            w_align=4;
236
            h_align=4;
237
        }
238
        break;
239
    case PIX_FMT_BGR24:
240
        if((s->codec_id == CODEC_ID_MSZH) || (s->codec_id == CODEC_ID_ZLIB)){
241
            w_align=4;
242
            h_align=4;
243
        }
244
        break;
245
    default:
246
        w_align= 1;
247
        h_align= 1;
248
        break;
249
    }
250

    
251
    *width = ALIGN(*width , w_align);
252
    *height= ALIGN(*height, h_align);
253
}
254

    
255
int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h){
256
    if((int)w>0 && (int)h>0 && (w+128)*(uint64_t)(h+128) < INT_MAX/4)
257
        return 0;
258

    
259
    av_log(av_log_ctx, AV_LOG_ERROR, "picture size invalid (%ux%u)\n", w, h);
260
    return -1;
261
}
262

    
263
int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic){
264
    int i;
265
    int w= s->width;
266
    int h= s->height;
267
    InternalBuffer *buf;
268
    int *picture_number;
269

    
270
    assert(pic->data[0]==NULL);
271
    assert(INTERNAL_BUFFER_SIZE > s->internal_buffer_count);
272

    
273
    if(avcodec_check_dimensions(s,w,h))
274
        return -1;
275

    
276
    if(s->internal_buffer==NULL){
277
        s->internal_buffer= av_mallocz(INTERNAL_BUFFER_SIZE*sizeof(InternalBuffer));
278
    }
279
#if 0
280
    s->internal_buffer= av_fast_realloc(
281
        s->internal_buffer,
282
        &s->internal_buffer_size,
283
        sizeof(InternalBuffer)*FFMAX(99,  s->internal_buffer_count+1)/*FIXME*/
284
        );
285
#endif
286

    
287
    buf= &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count];
288
    picture_number= &(((InternalBuffer*)s->internal_buffer)[INTERNAL_BUFFER_SIZE-1]).last_pic_num; //FIXME ugly hack
289
    (*picture_number)++;
290

    
291
    if(buf->base[0]){
292
        pic->age= *picture_number - buf->last_pic_num;
293
        buf->last_pic_num= *picture_number;
294
    }else{
295
        int h_chroma_shift, v_chroma_shift;
296
        int pixel_size, size[3];
297
        AVPicture picture;
298

    
299
        avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
300

    
301
        avcodec_align_dimensions(s, &w, &h);
302

    
303
        if(!(s->flags&CODEC_FLAG_EMU_EDGE)){
304
            w+= EDGE_WIDTH*2;
305
            h+= EDGE_WIDTH*2;
306
        }
307
        avpicture_fill(&picture, NULL, s->pix_fmt, w, h);
308
        pixel_size= picture.linesize[0]*8 / w;
309
//av_log(NULL, AV_LOG_ERROR, "%d %d %d %d\n", (int)picture.data[1], w, h, s->pix_fmt);
310
        assert(pixel_size>=1);
311
            //FIXME next ensures that linesize= 2^x uvlinesize, thats needed because some MC code assumes it
312
        if(pixel_size == 3*8)
313
            w= ALIGN(w, STRIDE_ALIGN<<h_chroma_shift);
314
        else
315
            w= ALIGN(pixel_size*w, STRIDE_ALIGN<<(h_chroma_shift+3)) / pixel_size;
316
        size[1] = avpicture_fill(&picture, NULL, s->pix_fmt, w, h);
317
        size[0] = picture.linesize[0] * h;
318
        size[1] -= size[0];
319
        if(picture.data[2])
320
            size[1]= size[2]= size[1]/2;
321
        else
322
            size[2]= 0;
323

    
324
        buf->last_pic_num= -256*256*256*64;
325
        memset(buf->base, 0, sizeof(buf->base));
326
        memset(buf->data, 0, sizeof(buf->data));
327

    
328
        for(i=0; i<3 && size[i]; i++){
329
            const int h_shift= i==0 ? 0 : h_chroma_shift;
330
            const int v_shift= i==0 ? 0 : v_chroma_shift;
331

    
332
            buf->linesize[i]= picture.linesize[i];
333

    
334
            buf->base[i]= av_malloc(size[i]+16); //FIXME 16
335
            if(buf->base[i]==NULL) return -1;
336
            memset(buf->base[i], 128, size[i]);
337

    
338
            // no edge if EDEG EMU or not planar YUV, we check for PAL8 redundantly to protect against a exploitable bug regression ...
339
            if((s->flags&CODEC_FLAG_EMU_EDGE) || (s->pix_fmt == PIX_FMT_PAL8) || !size[2])
340
                buf->data[i] = buf->base[i];
341
            else
342
                buf->data[i] = buf->base[i] + ALIGN((buf->linesize[i]*EDGE_WIDTH>>v_shift) + (EDGE_WIDTH>>h_shift), STRIDE_ALIGN);
343
        }
344
        pic->age= 256*256*256*64;
345
    }
346
    pic->type= FF_BUFFER_TYPE_INTERNAL;
347

    
348
    for(i=0; i<4; i++){
349
        pic->base[i]= buf->base[i];
350
        pic->data[i]= buf->data[i];
351
        pic->linesize[i]= buf->linesize[i];
352
    }
353
    s->internal_buffer_count++;
354

    
355
    return 0;
356
}
357

    
358
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic){
359
    int i;
360
    InternalBuffer *buf, *last, temp;
361

    
362
    assert(pic->type==FF_BUFFER_TYPE_INTERNAL);
363
    assert(s->internal_buffer_count);
364

    
365
    buf = NULL; /* avoids warning */
366
    for(i=0; i<s->internal_buffer_count; i++){ //just 3-5 checks so is not worth to optimize
367
        buf= &((InternalBuffer*)s->internal_buffer)[i];
368
        if(buf->data[0] == pic->data[0])
369
            break;
370
    }
371
    assert(i < s->internal_buffer_count);
372
    s->internal_buffer_count--;
373
    last = &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count];
374

    
375
    temp= *buf;
376
    *buf= *last;
377
    *last= temp;
378

    
379
    for(i=0; i<3; i++){
380
        pic->data[i]=NULL;
381
//        pic->base[i]=NULL;
382
    }
383
//printf("R%X\n", pic->opaque);
384
}
385

    
386
int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic){
387
    AVFrame temp_pic;
388
    int i;
389

    
390
    /* If no picture return a new buffer */
391
    if(pic->data[0] == NULL) {
392
        /* We will copy from buffer, so must be readable */
393
        pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
394
        return s->get_buffer(s, pic);
395
    }
396

    
397
    /* If internal buffer type return the same buffer */
398
    if(pic->type == FF_BUFFER_TYPE_INTERNAL)
399
        return 0;
400

    
401
    /*
402
     * Not internal type and reget_buffer not overridden, emulate cr buffer
403
     */
404
    temp_pic = *pic;
405
    for(i = 0; i < 4; i++)
406
        pic->data[i] = pic->base[i] = NULL;
407
    pic->opaque = NULL;
408
    /* Allocate new frame */
409
    if (s->get_buffer(s, pic))
410
        return -1;
411
    /* Copy image data from old buffer to new buffer */
412
    img_copy((AVPicture*)pic, (AVPicture*)&temp_pic, s->pix_fmt, s->width,
413
             s->height);
414
    s->release_buffer(s, &temp_pic); // Release old frame
415
    return 0;
416
}
417

    
418
int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count){
419
    int i;
420

    
421
    for(i=0; i<count; i++){
422
        int r= func(c, arg[i]);
423
        if(ret) ret[i]= r;
424
    }
425
    return 0;
426
}
427

    
428
enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt){
429
    return fmt[0];
430
}
431

    
432
static const char* context_to_name(void* ptr) {
433
    AVCodecContext *avc= ptr;
434

    
435
    if(avc && avc->codec && avc->codec->name)
436
        return avc->codec->name;
437
    else
438
        return "NULL";
439
}
440

    
441
#define OFFSET(x) offsetof(AVCodecContext,x)
442
#define DEFAULT 0 //should be NAN but it doesnt work as its not a constant in glibc as required by ANSI/ISO C
443
//these names are too long to be readable
444
#define V AV_OPT_FLAG_VIDEO_PARAM
445
#define A AV_OPT_FLAG_AUDIO_PARAM
446
#define S AV_OPT_FLAG_SUBTITLE_PARAM
447
#define E AV_OPT_FLAG_ENCODING_PARAM
448
#define D AV_OPT_FLAG_DECODING_PARAM
449

    
450
#define AV_CODEC_DEFAULT_BITRATE 200*1000
451

    
452
static const AVOption options[]={
453
{"b", "set video bitrate (in bits/s)", OFFSET(bit_rate), FF_OPT_TYPE_INT, AV_CODEC_DEFAULT_BITRATE, INT_MIN, INT_MAX, V|A|E},
454
{"bt", "set video bitrate tolerance (in bits/s)", OFFSET(bit_rate_tolerance), FF_OPT_TYPE_INT, AV_CODEC_DEFAULT_BITRATE*20, INT_MIN, INT_MAX, V|E},
455
{"flags", NULL, OFFSET(flags), FF_OPT_TYPE_FLAGS, DEFAULT, INT_MIN, INT_MAX, V|A|E|D, "flags"},
456
{"mv4", "use four motion vector by macroblock (mpeg4)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_4MV, INT_MIN, INT_MAX, V|E, "flags"},
457
{"obmc", "use overlapped block motion compensation (h263+)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_OBMC, INT_MIN, INT_MAX, V|E, "flags"},
458
{"qpel", "use 1/4 pel motion compensation", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_QPEL, INT_MIN, INT_MAX, V|E, "flags"},
459
{"loop", "use loop filter", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_LOOP_FILTER, INT_MIN, INT_MAX, V|E, "flags"},
460
{"qscale", "use fixed qscale", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_QSCALE, INT_MIN, INT_MAX, 0, "flags"},
461
{"gmc", "use gmc", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_GMC, INT_MIN, INT_MAX, V|E, "flags"},
462
{"mv0", "always try a mb with mv=<0,0>", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_MV0, INT_MIN, INT_MAX, V|E, "flags"},
463
{"part", "use data partitioning", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PART, INT_MIN, INT_MAX, V|E, "flags"},
464
{"input_preserved", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG_INPUT_PRESERVED, INT_MIN, INT_MAX, 0, "flags"},
465
{"pass1", "use internal 2pass ratecontrol in first  pass mode", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PASS1, INT_MIN, INT_MAX, 0, "flags"},
466
{"pass2", "use internal 2pass ratecontrol in second pass mode", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PASS2, INT_MIN, INT_MAX, 0, "flags"},
467
{"extern_huff", "use external huffman table (for mjpeg)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_EXTERN_HUFF, INT_MIN, INT_MAX, 0, "flags"},
468
{"gray", "only decode/encode grayscale", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_GRAY, INT_MIN, INT_MAX, V|E|D, "flags"},
469
{"emu_edge", "don't draw edges", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_EMU_EDGE, INT_MIN, INT_MAX, 0, "flags"},
470
{"psnr", "error[?] variables will be set during encoding", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PSNR, INT_MIN, INT_MAX, V|E, "flags"},
471
{"truncated", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG_TRUNCATED, INT_MIN, INT_MAX, 0, "flags"},
472
{"naq", "normalize adaptive quantization", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_NORMALIZE_AQP, INT_MIN, INT_MAX, V|E, "flags"},
473
{"ildct", "use interlaced dct", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_INTERLACED_DCT, INT_MIN, INT_MAX, V|E, "flags"},
474
{"low_delay", "force low delay", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_LOW_DELAY, INT_MIN, INT_MAX, V|D, "flags"},
475
{"alt", "enable alternate scantable (mpeg2/mpeg4)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_ALT_SCAN, INT_MIN, INT_MAX, V|E, "flags"},
476
{"trell", "use trellis quantization", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_TRELLIS_QUANT, INT_MIN, INT_MAX, V|E, "flags"},
477
{"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"},
478
{"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"},
479
{"aic", "h263 advanced intra coding / mpeg4 ac prediction", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_AC_PRED, INT_MIN, INT_MAX, V|E, "flags"},
480
{"umv", "use unlimited motion vectors", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_H263P_UMV, INT_MIN, INT_MAX, V|E, "flags"},
481
{"cbp", "use rate distortion optimization for cbp", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_CBP_RD, INT_MIN, INT_MAX, V|E, "flags"},
482
{"qprd", "use rate distortion optimization for qp selection", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_QP_RD, INT_MIN, INT_MAX, V|E, "flags"},
483
{"aiv", "h263 alternative inter vlc", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_H263P_AIV, INT_MIN, INT_MAX, V|E, "flags"},
484
{"slice", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG_H263P_SLICE_STRUCT, INT_MIN, INT_MAX, V|E, "flags"},
485
{"ilme", "interlaced motion estimation", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_INTERLACED_ME, INT_MIN, INT_MAX, V|E, "flags"},
486
{"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"},
487
{"cgop", "closed gop", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_CLOSED_GOP, INT_MIN, INT_MAX, V|E, "flags"},
488
{"fast", "allow non spec compliant speedup tricks", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_FAST, INT_MIN, INT_MAX, V|E, "flags2"},
489
{"sgop", "strictly enforce gop size", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_STRICT_GOP, INT_MIN, INT_MAX, V|E, "flags2"},
490
{"noout", "skip bitstream encoding", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_NO_OUTPUT, INT_MIN, INT_MAX, V|E, "flags2"},
491
{"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"},
492
{"sub_id", NULL, OFFSET(sub_id), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
493
{"me_method", "set motion estimation method", OFFSET(me_method), FF_OPT_TYPE_INT, ME_EPZS, INT_MIN, INT_MAX, V|E, "me_method"},
494
{"extradata_size", NULL, OFFSET(extradata_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
495
{"time_base", NULL, OFFSET(time_base), FF_OPT_TYPE_RATIONAL, DEFAULT, INT_MIN, INT_MAX},
496
{"g", "set the group of picture size", OFFSET(gop_size), FF_OPT_TYPE_INT, 12, INT_MIN, INT_MAX, V|E},
497
{"rate_emu", NULL, OFFSET(rate_emu), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
498
{"ar", "set audio sampling rate (in Hz)", OFFSET(sample_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
499
{"ac", "set number of audio channels", OFFSET(channels), FF_OPT_TYPE_INT, 1, INT_MIN, INT_MAX},
500
{"cutoff", "set cutoff bandwidth", OFFSET(cutoff), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, A|E},
501
{"frame_size", NULL, OFFSET(frame_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, A|E},
502
{"frame_number", NULL, OFFSET(frame_number), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
503
{"real_pict_num", NULL, OFFSET(real_pict_num), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
504
{"delay", NULL, OFFSET(delay), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
505
{"qcomp", "video quantiser scale compression (VBR)", OFFSET(qcompress), FF_OPT_TYPE_FLOAT, 0.5, FLT_MIN, FLT_MAX, V|E},
506
{"qblur", "video quantiser scale blur (VBR)", OFFSET(qblur), FF_OPT_TYPE_FLOAT, 0.5, FLT_MIN, FLT_MAX, V|E},
507
{"qmin", "min video quantiser scale (VBR)", OFFSET(qmin), FF_OPT_TYPE_INT, 2, 1, 51, V|E},
508
{"qmax", "max video quantiser scale (VBR)", OFFSET(qmax), FF_OPT_TYPE_INT, 31, 1, 51, V|E},
509
{"qdiff", "max difference between the quantiser scale (VBR)", OFFSET(max_qdiff), FF_OPT_TYPE_INT, 3, INT_MIN, INT_MAX, V|E},
510
{"bf", "use 'frames' B frames", OFFSET(max_b_frames), FF_OPT_TYPE_INT, DEFAULT, 0, FF_MAX_B_FRAMES, V|E},
511
{"b_qfactor", "qp factor between p and b frames", OFFSET(b_quant_factor), FF_OPT_TYPE_FLOAT, 1.25, FLT_MIN, FLT_MAX, V|E},
512
{"rc_strategy", NULL, OFFSET(rc_strategy), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
513
{"b_strategy", NULL, OFFSET(b_frame_strategy), FF_OPT_TYPE_INT, 0, INT_MIN, INT_MAX, V|E},
514
{"hurry_up", NULL, OFFSET(hurry_up), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D},
515
{"rtp_mode", NULL, OFFSET(rtp_mode), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
516
{"rtp_payload_size", NULL, OFFSET(rtp_payload_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
517
{"mv_bits", NULL, OFFSET(mv_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
518
{"header_bits", NULL, OFFSET(header_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
519
{"i_tex_bits", NULL, OFFSET(i_tex_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
520
{"p_tex_bits", NULL, OFFSET(p_tex_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
521
{"i_count", NULL, OFFSET(i_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
522
{"p_count", NULL, OFFSET(p_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
523
{"skip_count", NULL, OFFSET(skip_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
524
{"misc_bits", NULL, OFFSET(misc_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
525
{"frame_bits", NULL, OFFSET(frame_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
526
{"codec_tag", NULL, OFFSET(codec_tag), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
527
{"bug", "workaround not auto detected encoder bugs", OFFSET(workaround_bugs), FF_OPT_TYPE_FLAGS, FF_BUG_AUTODETECT, INT_MIN, INT_MAX, V|D, "bug"},
528
{"autodetect", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_AUTODETECT, INT_MIN, INT_MAX, V|D, "bug"},
529
{"old_msmpeg4", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_OLD_MSMPEG4, INT_MIN, INT_MAX, V|D, "bug"},
530
{"xvid_ilace", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_XVID_ILACE, INT_MIN, INT_MAX, V|D, "bug"},
531
{"ump4", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_UMP4, INT_MIN, INT_MAX, V|D, "bug"},
532
{"no_padding", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_NO_PADDING, INT_MIN, INT_MAX, V|D, "bug"},
533
{"amv", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_AMV, INT_MIN, INT_MAX, V|D, "bug"},
534
{"ac_vlc", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_AC_VLC, INT_MIN, INT_MAX, V|D, "bug"},
535
{"qpel_chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_QPEL_CHROMA, INT_MIN, INT_MAX, V|D, "bug"},
536
{"std_qpel", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_STD_QPEL, INT_MIN, INT_MAX, V|D, "bug"},
537
{"qpel_chroma2", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_QPEL_CHROMA2, INT_MIN, INT_MAX, V|D, "bug"},
538
{"direct_blocksize", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_DIRECT_BLOCKSIZE, INT_MIN, INT_MAX, V|D, "bug"},
539
{"edge", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_EDGE, INT_MIN, INT_MAX, V|D, "bug"},
540
{"hpel_chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_HPEL_CHROMA, INT_MIN, INT_MAX, V|D, "bug"},
541
{"dc_clip", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_DC_CLIP, INT_MIN, INT_MAX, V|D, "bug"},
542
{"ms", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_MS, INT_MIN, INT_MAX, V|D, "bug"},
543
{"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},
544
{"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},
545
{"strict", "how strictly to follow the standards", OFFSET(strict_std_compliance), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "strict"},
546
{"very", NULL, 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_VERY_STRICT, INT_MIN, INT_MAX, V|E, "strict"},
547
{"strict", NULL, 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_STRICT, INT_MIN, INT_MAX, V|E, "strict"},
548
{"normal", NULL, 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_NORMAL, INT_MIN, INT_MAX, V|E, "strict"},
549
{"inofficial", NULL, 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_INOFFICIAL, INT_MIN, INT_MAX, V|E, "strict"},
550
{"experimental", NULL, 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_EXPERIMENTAL, INT_MIN, INT_MAX, V|E, "strict"},
551
{"b_qoffset", "qp offset between p and b frames", OFFSET(b_quant_offset), FF_OPT_TYPE_FLOAT, 1.25, FLT_MIN, FLT_MAX, V|E},
552
{"er", NULL, OFFSET(error_resilience), FF_OPT_TYPE_INT, FF_ER_CAREFUL, INT_MIN, INT_MAX, V|D, "er"},
553
{"careful", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_CAREFUL, INT_MIN, INT_MAX, V|D, "er"},
554
{"compliant", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_COMPLIANT, INT_MIN, INT_MAX, V|D, "er"},
555
{"aggressive", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_AGGRESSIVE, INT_MIN, INT_MAX, V|D, "er"},
556
{"very_aggressive", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_VERY_AGGRESSIVE, INT_MIN, INT_MAX, V|D, "er"},
557
{"has_b_frames", NULL, OFFSET(has_b_frames), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
558
{"block_align", NULL, OFFSET(block_align), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
559
{"parse_only", NULL, OFFSET(parse_only), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
560
{"mpeg_quant", NULL, OFFSET(mpeg_quant), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
561
{"stats_out", NULL, OFFSET(stats_out), FF_OPT_TYPE_STRING, DEFAULT, CHAR_MIN, CHAR_MAX},
562
{"stats_in", NULL, OFFSET(stats_in), FF_OPT_TYPE_STRING, DEFAULT, CHAR_MIN, CHAR_MAX},
563
{"qsquish", "how to keep quantiser between qmin and qmax (0 = clip, 1 = use differentiable function)", OFFSET(rc_qsquish), FF_OPT_TYPE_FLOAT, DEFAULT, 0, 99, V|E},
564
{"rc_qmod_amp", NULL, OFFSET(rc_qmod_amp), FF_OPT_TYPE_FLOAT, DEFAULT, -FLT_MAX, FLT_MAX, V|E},
565
{"rc_qmod_freq", NULL, OFFSET(rc_qmod_freq), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
566
{"rc_override_count", NULL, OFFSET(rc_override_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
567
{"rc_eq", "set rate control equation", OFFSET(rc_eq), FF_OPT_TYPE_STRING, DEFAULT, CHAR_MIN, CHAR_MAX, V|E},
568
{"maxrate", "set max video bitrate tolerance (in bits/s)", OFFSET(rc_max_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
569
{"minrate", "set min video bitrate tolerance (in bits/s)", OFFSET(rc_min_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
570
{"bufsize", "set ratecontrol buffer size (in bits)", OFFSET(rc_buffer_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
571
{"rc_buf_aggressivity", NULL, OFFSET(rc_buffer_aggressivity), FF_OPT_TYPE_FLOAT, 1.0, FLT_MIN, FLT_MAX, V|E},
572
{"i_qfactor", "qp factor between p and i frames", OFFSET(i_quant_factor), FF_OPT_TYPE_FLOAT, -0.8, -FLT_MAX, FLT_MAX, V|E},
573
{"i_qoffset", "qp offset between p and i frames", OFFSET(i_quant_offset), FF_OPT_TYPE_FLOAT, 0.0, -FLT_MAX, FLT_MAX, V|E},
574
{"rc_init_cplx", "initial complexity for 1-pass encoding", OFFSET(rc_initial_cplx), FF_OPT_TYPE_FLOAT, DEFAULT, -FLT_MAX, FLT_MAX, V|E},
575
{"dct", NULL, OFFSET(dct_algo), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, V|E, "dct"},
576
{"auto", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_AUTO, INT_MIN, INT_MAX, V|E, "dct"},
577
{"fastint", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_FASTINT, INT_MIN, INT_MAX, V|E, "dct"},
578
{"int", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_INT, INT_MIN, INT_MAX, V|E, "dct"},
579
{"mmx", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_MMX, INT_MIN, INT_MAX, V|E, "dct"},
580
{"mlib", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_MLIB, INT_MIN, INT_MAX, V|E, "dct"},
581
{"altivec", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_ALTIVEC, INT_MIN, INT_MAX, V|E, "dct"},
582
{"faan", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_FAAN, INT_MIN, INT_MAX, V|E, "dct"},
583
{"lumi_mask", "lumimasking", OFFSET(lumi_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
584
{"tcplx_mask", "temporal complexity masking", OFFSET(temporal_cplx_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
585
{"scplx_mask", "spatial complexity masking", OFFSET(spatial_cplx_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
586
{"p_mask", "inter masking", OFFSET(p_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
587
{"dark_mask", "darkness masking", OFFSET(dark_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
588
{"unused", NULL, OFFSET(unused), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
589
{"idct", NULL, OFFSET(idct_algo), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, V|E|D, "idct"},
590
{"auto", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_AUTO, INT_MIN, INT_MAX, V|E|D, "idct"},
591
{"int", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_INT, INT_MIN, INT_MAX, V|E|D, "idct"},
592
{"simple", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLE, INT_MIN, INT_MAX, V|E|D, "idct"},
593
{"simplemmx", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEMMX, INT_MIN, INT_MAX, V|E|D, "idct"},
594
{"libmpeg2mmx", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_LIBMPEG2MMX, INT_MIN, INT_MAX, V|E|D, "idct"},
595
{"ps2", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_PS2, INT_MIN, INT_MAX, V|E|D, "idct"},
596
{"mlib", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_MLIB, INT_MIN, INT_MAX, V|E|D, "idct"},
597
{"arm", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_ARM, INT_MIN, INT_MAX, V|E|D, "idct"},
598
{"altivec", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_ALTIVEC, INT_MIN, INT_MAX, V|E|D, "idct"},
599
{"sh4", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SH4, INT_MIN, INT_MAX, V|E|D, "idct"},
600
{"simplearm", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEARM, INT_MIN, INT_MAX, V|E|D, "idct"},
601
{"h264", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_H264, INT_MIN, INT_MAX, V|E|D, "idct"},
602
{"vp3", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_VP3, INT_MIN, INT_MAX, V|E|D, "idct"},
603
{"ipp", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_IPP, INT_MIN, INT_MAX, V|E|D, "idct"},
604
{"xvidmmx", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_XVIDMMX, INT_MIN, INT_MAX, V|E|D, "idct"},
605
{"slice_count", NULL, OFFSET(slice_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
606
{"ec", NULL, OFFSET(error_concealment), FF_OPT_TYPE_FLAGS, 3, INT_MIN, INT_MAX, V|D, "ec"},
607
{"guess_mvs", NULL, 0, FF_OPT_TYPE_CONST, FF_EC_GUESS_MVS, INT_MIN, INT_MAX, V|D, "ec"},
608
{"deblock", NULL, 0, FF_OPT_TYPE_CONST, FF_EC_DEBLOCK, INT_MIN, INT_MAX, V|D, "ec"},
609
{"bits_per_sample", NULL, OFFSET(bits_per_sample), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
610
{"pred", "prediction method", OFFSET(prediction_method), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "pred"},
611
{"left", NULL, 0, FF_OPT_TYPE_CONST, FF_PRED_LEFT, INT_MIN, INT_MAX, V|E, "pred"},
612
{"plane", NULL, 0, FF_OPT_TYPE_CONST, FF_PRED_PLANE, INT_MIN, INT_MAX, V|E, "pred"},
613
{"median", NULL, 0, FF_OPT_TYPE_CONST, FF_PRED_MEDIAN, INT_MIN, INT_MAX, V|E, "pred"},
614
{"aspect", NULL, OFFSET(sample_aspect_ratio), FF_OPT_TYPE_RATIONAL, DEFAULT, 0, 10, V|E},
615
{"debug", "print specific debug info", OFFSET(debug), FF_OPT_TYPE_FLAGS, DEFAULT, 0, INT_MAX, V|A|S|E|D, "debug"},
616
{"pict", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_PICT_INFO, INT_MIN, INT_MAX, V|D, "debug"},
617
{"rc", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_RC, INT_MIN, INT_MAX, V|E, "debug"},
618
{"bitstream", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_BITSTREAM, INT_MIN, INT_MAX, V|D, "debug"},
619
{"mb_type", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_MB_TYPE, INT_MIN, INT_MAX, V|D, "debug"},
620
{"qp", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_QP, INT_MIN, INT_MAX, V|D, "debug"},
621
{"mv", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_MV, INT_MIN, INT_MAX, V|D, "debug"},
622
{"dct_coeff", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_DCT_COEFF, INT_MIN, INT_MAX, V|D, "debug"},
623
{"skip", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_SKIP, INT_MIN, INT_MAX, V|D, "debug"},
624
{"startcode", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_STARTCODE, INT_MIN, INT_MAX, V|D, "debug"},
625
{"pts", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_PTS, INT_MIN, INT_MAX, V|D, "debug"},
626
{"er", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_ER, INT_MIN, INT_MAX, V|D, "debug"},
627
{"mmco", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_MMCO, INT_MIN, INT_MAX, V|D, "debug"},
628
{"bugs", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_BUGS, INT_MIN, INT_MAX, V|D, "debug"},
629
{"vis_qp", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_QP, INT_MIN, INT_MAX, V|D, "debug"},
630
{"vis_mb_type", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_MB_TYPE, INT_MIN, INT_MAX, V|D, "debug"},
631
{"vismv", "visualize motion vectors", OFFSET(debug_mv), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, V|D, "debug_mv"},
632
{"pf", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_MV_P_FOR, INT_MIN, INT_MAX, V|D, "debug_mv"},
633
{"bf", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_MV_B_FOR, INT_MIN, INT_MAX, V|D, "debug_mv"},
634
{"bb", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_MV_B_BACK, INT_MIN, INT_MAX, V|D, "debug_mv"},
635
{"mb_qmin", NULL, OFFSET(mb_qmin), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
636
{"mb_qmax", NULL, OFFSET(mb_qmax), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
637
{"cmp", "full pel me compare function", OFFSET(me_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
638
{"subcmp", "sub pel me compare function", OFFSET(me_sub_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
639
{"mbcmp", "macroblock compare function", OFFSET(mb_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
640
{"ildctcmp", "interlaced dct compare function", OFFSET(ildct_cmp), FF_OPT_TYPE_INT, FF_CMP_VSAD, INT_MIN, INT_MAX, V|E, "cmp_func"},
641
{"dia_size", NULL, OFFSET(dia_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
642
{"last_pred", NULL, OFFSET(last_predictor_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
643
{"preme", "pre motion estimation", OFFSET(pre_me), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
644
{"precmp", "pre motion estimation compare function", OFFSET(me_pre_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
645
{"sad", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_SAD, INT_MIN, INT_MAX, V|E, "cmp_func"},
646
{"sse", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_SSE, INT_MIN, INT_MAX, V|E, "cmp_func"},
647
{"satd", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_SATD, INT_MIN, INT_MAX, V|E, "cmp_func"},
648
{"dct", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_DCT, INT_MIN, INT_MAX, V|E, "cmp_func"},
649
{"psnr", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_PSNR, INT_MIN, INT_MAX, V|E, "cmp_func"},
650
{"bit", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_BIT, INT_MIN, INT_MAX, V|E, "cmp_func"},
651
{"rd", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_RD, INT_MIN, INT_MAX, V|E, "cmp_func"},
652
{"zero", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_ZERO, INT_MIN, INT_MAX, V|E, "cmp_func"},
653
{"vsad", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_VSAD, INT_MIN, INT_MAX, V|E, "cmp_func"},
654
{"vsse", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_VSSE, INT_MIN, INT_MAX, V|E, "cmp_func"},
655
{"nsse", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_NSSE, INT_MIN, INT_MAX, V|E, "cmp_func"},
656
#ifdef CONFIG_SNOW_ENCODER
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
#endif
660
{"dctmax", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_DCTMAX, INT_MIN, INT_MAX, V|E, "cmp_func"},
661
{"chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_CHROMA, INT_MIN, INT_MAX, V|E, "cmp_func"},
662
{"pre_dia_size", NULL, OFFSET(pre_dia_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
663
{"subq", "sub pel motion estimation quality", OFFSET(me_subpel_quality), FF_OPT_TYPE_INT, 8, INT_MIN, INT_MAX, V|E},
664
{"dtg_active_format", NULL, OFFSET(dtg_active_format), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
665
{"me_range", "limit motion vectors range (1023 for DivX player)", OFFSET(me_range), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
666
{"ibias", "intra quant bias", OFFSET(intra_quant_bias), FF_OPT_TYPE_INT, FF_DEFAULT_QUANT_BIAS, INT_MIN, INT_MAX, V|E},
667
{"pbias", "inter quant bias", OFFSET(inter_quant_bias), FF_OPT_TYPE_INT, FF_DEFAULT_QUANT_BIAS, INT_MIN, INT_MAX, V|E},
668
{"color_table_id", NULL, OFFSET(color_table_id), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
669
{"internal_buffer_count", NULL, OFFSET(internal_buffer_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
670
{"global_quality", NULL, OFFSET(global_quality), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
671
{"coder", NULL, OFFSET(coder_type), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "coder"},
672
{"vlc", "variable length coder / huffman coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_VLC, INT_MIN, INT_MAX, V|E, "coder"},
673
{"ac", "arithmetic coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_AC, INT_MIN, INT_MAX, V|E, "coder"},
674
{"context", "context model", OFFSET(context_model), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
675
{"slice_flags", NULL, OFFSET(slice_flags), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
676
{"xvmc_acceleration", NULL, OFFSET(xvmc_acceleration), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
677
{"mbd", NULL, OFFSET(mb_decision), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "mbd"},
678
{"simple", NULL, 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_SIMPLE, INT_MIN, INT_MAX, V|E, "mbd"},
679
{"bits", NULL, 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_BITS, INT_MIN, INT_MAX, V|E, "mbd"},
680
{"rd", NULL, 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_RD, INT_MIN, INT_MAX, V|E, "mbd"},
681
{"stream_codec_tag", NULL, OFFSET(stream_codec_tag), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
682
{"sc_threshold", "scene change threshold", OFFSET(scenechange_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
683
{"lmin", "min lagrange factor (VBR)", OFFSET(lmin), FF_OPT_TYPE_INT,  2*FF_QP2LAMBDA, 0, INT_MAX, V|E},
684
{"lmax", "max lagrange factor (VBR)", OFFSET(lmax), FF_OPT_TYPE_INT, 31*FF_QP2LAMBDA, 0, INT_MAX, V|E},
685
{"nr", "noise reduction", OFFSET(noise_reduction), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
686
{"rc_init_occupancy", NULL, OFFSET(rc_initial_buffer_occupancy), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
687
{"inter_threshold", NULL, OFFSET(inter_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
688
{"flags2", NULL, OFFSET(flags2), FF_OPT_TYPE_FLAGS, CODEC_FLAG2_FASTPSKIP, INT_MIN, INT_MAX, V|A|E|D, "flags2"},
689
{"error", NULL, OFFSET(error_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
690
{"antialias", NULL, OFFSET(antialias_algo), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D, "aa"},
691
{"auto", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_AUTO, INT_MIN, INT_MAX, V|D, "aa"},
692
{"fastint", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_FASTINT, INT_MIN, INT_MAX, V|D, "aa"},
693
{"int", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_INT, INT_MIN, INT_MAX, V|D, "aa"},
694
{"float", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_FLOAT, INT_MIN, INT_MAX, V|D, "aa"},
695
{"qns", "quantizer noise shaping", OFFSET(quantizer_noise_shaping), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
696
{"threads", NULL, OFFSET(thread_count), FF_OPT_TYPE_INT, 1, INT_MIN, INT_MAX, V|E|D},
697
{"me_threshold", "motion estimaton threshold", OFFSET(me_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
698
{"mb_threshold", "macroblock threshold", OFFSET(mb_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
699
{"dc", "intra_dc_precision", OFFSET(intra_dc_precision), FF_OPT_TYPE_INT, 8, INT_MIN, INT_MAX, V|E},
700
{"nssew", "nsse weight", OFFSET(nsse_weight), FF_OPT_TYPE_INT, 8, INT_MIN, INT_MAX, V|E},
701
{"skip_top", NULL, OFFSET(skip_top), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D},
702
{"skip_bottom", NULL, OFFSET(skip_bottom), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D},
703
{"profile", NULL, OFFSET(profile), FF_OPT_TYPE_INT, FF_PROFILE_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "profile"},
704
{"unknown", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "profile"},
705
{"level", NULL, OFFSET(level), FF_OPT_TYPE_INT, FF_LEVEL_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "level"},
706
{"unknown", NULL, 0, FF_OPT_TYPE_CONST, FF_LEVEL_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "level"},
707
{"lowres", NULL, OFFSET(lowres), FF_OPT_TYPE_INT, 0, 0, INT_MAX, V|D},
708
{"skip_threshold", "frame skip threshold", OFFSET(frame_skip_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
709
{"skip_factor", "frame skip factor", OFFSET(frame_skip_factor), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
710
{"skip_exp", "frame skip exponent", OFFSET(frame_skip_exp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
711
{"skipcmp", "frame skip compare function", OFFSET(frame_skip_cmp), FF_OPT_TYPE_INT, FF_CMP_DCTMAX, INT_MIN, INT_MAX, V|E, "cmp_func"},
712
{"border_mask", NULL, OFFSET(border_masking), FF_OPT_TYPE_FLOAT, DEFAULT, -FLT_MAX, FLT_MAX, V|E},
713
{"mblmin", "min macroblock quantiser scale (VBR)", OFFSET(mb_lmin), FF_OPT_TYPE_INT, FF_QP2LAMBDA * 2, INT_MIN, INT_MAX, V|E},
714
{"mblmax", "max macroblock quantiser scale (VBR)", OFFSET(mb_lmax), FF_OPT_TYPE_INT, FF_QP2LAMBDA * 31, INT_MIN, INT_MAX, V|E},
715
{"mepc", "motion estimation bitrate penalty compensation", OFFSET(me_penalty_compensation), FF_OPT_TYPE_INT, 256, INT_MIN, INT_MAX, V|E},
716
{"bidir_refine", NULL, OFFSET(bidir_refine), FF_OPT_TYPE_INT, DEFAULT, 0, 4, V|E},
717
{"brd_scale", NULL, OFFSET(brd_scale), FF_OPT_TYPE_INT, DEFAULT, 0, 10, V|E},
718
{"crf", NULL, OFFSET(crf), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
719
{"cqp", NULL, OFFSET(cqp), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, V|E},
720
{"keyint_min", NULL, OFFSET(keyint_min), FF_OPT_TYPE_INT, 25, INT_MIN, INT_MAX, V|E},
721
{"refs", NULL, OFFSET(refs), FF_OPT_TYPE_INT, 1, INT_MIN, INT_MAX, V|E},
722
{"chromaoffset", NULL, OFFSET(chromaoffset), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
723
{"bframebias", NULL, OFFSET(bframebias), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
724
{"trellis", NULL, OFFSET(trellis), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|A|E},
725
{"directpred", NULL, OFFSET(directpred), FF_OPT_TYPE_INT, 2, INT_MIN, INT_MAX, V|E},
726
{"bpyramid", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_BPYRAMID, INT_MIN, INT_MAX, V|E, "flags2"},
727
{"wpred", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_WPRED, INT_MIN, INT_MAX, V|E, "flags2"},
728
{"mixed_refs", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_MIXED_REFS, INT_MIN, INT_MAX, V|E, "flags2"},
729
{"8x8dct", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_8X8DCT, INT_MIN, INT_MAX, V|E, "flags2"},
730
{"fastpskip", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_FASTPSKIP, INT_MIN, INT_MAX, V|E, "flags2"},
731
{"aud", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_AUD, INT_MIN, INT_MAX, V|E, "flags2"},
732
{"brdo", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_BRDO, INT_MIN, INT_MAX, V|E, "flags2"},
733
{"complexityblur", NULL, OFFSET(complexityblur), FF_OPT_TYPE_FLOAT, 20.0, FLT_MIN, FLT_MAX, V|E},
734
{"deblockalpha", NULL, OFFSET(deblockalpha), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
735
{"deblockbeta", NULL, OFFSET(deblockbeta), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
736
{"partitions", NULL, OFFSET(partitions), FF_OPT_TYPE_FLAGS, DEFAULT, INT_MIN, INT_MAX, V|E, "partitions"},
737
{"parti4x4", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_I4X4, INT_MIN, INT_MAX, V|E, "partitions"},
738
{"parti8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_I8X8, INT_MIN, INT_MAX, V|E, "partitions"},
739
{"partp4x4", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_P4X4, INT_MIN, INT_MAX, V|E, "partitions"},
740
{"partp8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_P8X8, INT_MIN, INT_MAX, V|E, "partitions"},
741
{"partb8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_B8X8, INT_MIN, INT_MAX, V|E, "partitions"},
742
{"sc_factor", NULL, OFFSET(scenechange_factor), FF_OPT_TYPE_INT, 6, 0, INT_MAX, V|E},
743
{"mv0_threshold", NULL, OFFSET(mv0_threshold), FF_OPT_TYPE_INT, 256, 0, INT_MAX, V|E},
744
{"ivlc", "intra vlc table", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_INTRA_VLC, INT_MIN, INT_MAX, V|E, "flags2"},
745
{"b_sensitivity", NULL, OFFSET(b_sensitivity), FF_OPT_TYPE_INT, 40, 1, INT_MAX, V|E},
746
{"compression_level", NULL, OFFSET(compression_level), FF_OPT_TYPE_INT, FF_COMPRESSION_DEFAULT, INT_MIN, INT_MAX, V|A|E},
747
{"use_lpc", NULL, OFFSET(use_lpc), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
748
{"lpc_coeff_precision", NULL, OFFSET(lpc_coeff_precision), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, A|E},
749
{"min_prediction_order", NULL, OFFSET(min_prediction_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
750
{"max_prediction_order", NULL, OFFSET(max_prediction_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
751
{"prediction_order_method", NULL, OFFSET(prediction_order_method), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
752
{"min_partition_order", NULL, OFFSET(min_partition_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
753
{"max_partition_order", NULL, OFFSET(max_partition_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
754
{NULL},
755
};
756

    
757
#undef A
758
#undef V
759
#undef S
760
#undef E
761
#undef D
762
#undef DEFAULT
763

    
764
static AVClass av_codec_context_class = { "AVCodecContext", context_to_name, options };
765

    
766
void avcodec_get_context_defaults(AVCodecContext *s){
767
    memset(s, 0, sizeof(AVCodecContext));
768

    
769
    s->av_class= &av_codec_context_class;
770

    
771
    av_opt_set_defaults(s);
772

    
773
    s->rc_eq= "tex^qComp";
774
    s->time_base= (AVRational){0,1};
775
    s->get_buffer= avcodec_default_get_buffer;
776
    s->release_buffer= avcodec_default_release_buffer;
777
    s->get_format= avcodec_default_get_format;
778
    s->execute= avcodec_default_execute;
779
    s->lmin= FF_QP2LAMBDA * s->qmin;
780
    s->lmax= FF_QP2LAMBDA * s->qmax;
781
    s->sample_aspect_ratio= (AVRational){0,1};
782
    s->pix_fmt= PIX_FMT_NONE;
783
    s->sample_fmt= SAMPLE_FMT_S16; // FIXME: set to NONE
784

    
785
    s->palctrl = NULL;
786
    s->reget_buffer= avcodec_default_reget_buffer;
787
}
788

    
789
/**
790
 * allocates a AVCodecContext and set it to defaults.
791
 * this can be deallocated by simply calling free()
792
 */
793
AVCodecContext *avcodec_alloc_context(void){
794
    AVCodecContext *avctx= av_malloc(sizeof(AVCodecContext));
795

    
796
    if(avctx==NULL) return NULL;
797

    
798
    avcodec_get_context_defaults(avctx);
799

    
800
    return avctx;
801
}
802

    
803
void avcodec_get_frame_defaults(AVFrame *pic){
804
    memset(pic, 0, sizeof(AVFrame));
805

    
806
    pic->pts= AV_NOPTS_VALUE;
807
    pic->key_frame= 1;
808
}
809

    
810
/**
811
 * allocates a AVPFrame and set it to defaults.
812
 * this can be deallocated by simply calling free()
813
 */
814
AVFrame *avcodec_alloc_frame(void){
815
    AVFrame *pic= av_malloc(sizeof(AVFrame));
816

    
817
    if(pic==NULL) return NULL;
818

    
819
    avcodec_get_frame_defaults(pic);
820

    
821
    return pic;
822
}
823

    
824
int avcodec_open(AVCodecContext *avctx, AVCodec *codec)
825
{
826
    int ret= -1;
827

    
828
    entangled_thread_counter++;
829
    if(entangled_thread_counter != 1){
830
        av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
831
        goto end;
832
    }
833

    
834
    if(avctx->codec)
835
        goto end;
836

    
837
    if (codec->priv_data_size > 0) {
838
        avctx->priv_data = av_mallocz(codec->priv_data_size);
839
        if (!avctx->priv_data)
840
            goto end;
841
    } else {
842
        avctx->priv_data = NULL;
843
    }
844

    
845
    if(avctx->coded_width && avctx->coded_height)
846
        avcodec_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
847
    else if(avctx->width && avctx->height)
848
        avcodec_set_dimensions(avctx, avctx->width, avctx->height);
849

    
850
    if((avctx->coded_width||avctx->coded_height) && avcodec_check_dimensions(avctx,avctx->coded_width,avctx->coded_height)){
851
        av_freep(&avctx->priv_data);
852
        goto end;
853
    }
854

    
855
    avctx->codec = codec;
856
    avctx->codec_id = codec->id;
857
    avctx->frame_number = 0;
858
    ret = avctx->codec->init(avctx);
859
    if (ret < 0) {
860
        av_freep(&avctx->priv_data);
861
        avctx->codec= NULL;
862
        goto end;
863
    }
864
    ret=0;
865
end:
866
    entangled_thread_counter--;
867
    return ret;
868
}
869

    
870
int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
871
                         const short *samples)
872
{
873
    if(buf_size < FF_MIN_BUFFER_SIZE && 0){
874
        av_log(avctx, AV_LOG_ERROR, "buffer smaller then minimum size\n");
875
        return -1;
876
    }
877
    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || samples){
878
        int ret = avctx->codec->encode(avctx, buf, buf_size, (void *)samples);
879
        avctx->frame_number++;
880
        return ret;
881
    }else
882
        return 0;
883
}
884

    
885
int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
886
                         const AVFrame *pict)
887
{
888
    if(buf_size < FF_MIN_BUFFER_SIZE){
889
        av_log(avctx, AV_LOG_ERROR, "buffer smaller then minimum size\n");
890
        return -1;
891
    }
892
    if(avcodec_check_dimensions(avctx,avctx->width,avctx->height))
893
        return -1;
894
    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || pict){
895
        int ret = avctx->codec->encode(avctx, buf, buf_size, (void *)pict);
896
        avctx->frame_number++;
897
        emms_c(); //needed to avoid an emms_c() call before every return;
898

    
899
        return ret;
900
    }else
901
        return 0;
902
}
903

    
904
int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
905
                            const AVSubtitle *sub)
906
{
907
    int ret;
908
    ret = avctx->codec->encode(avctx, buf, buf_size, (void *)sub);
909
    avctx->frame_number++;
910
    return ret;
911
}
912

    
913
/**
914
 * decode a frame.
915
 * @param buf bitstream buffer, must be FF_INPUT_BUFFER_PADDING_SIZE larger then the actual read bytes
916
 * because some optimized bitstream readers read 32 or 64 bit at once and could read over the end
917
 * @param buf_size the size of the buffer in bytes
918
 * @param got_picture_ptr zero if no frame could be decompressed, Otherwise, it is non zero
919
 * @return -1 if error, otherwise return the number of
920
 * bytes used.
921
 */
922
int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
923
                         int *got_picture_ptr,
924
                         uint8_t *buf, int buf_size)
925
{
926
    int ret;
927

    
928
    *got_picture_ptr= 0;
929
    if((avctx->coded_width||avctx->coded_height) && avcodec_check_dimensions(avctx,avctx->coded_width,avctx->coded_height))
930
        return -1;
931
    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || buf_size){
932
        ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
933
                                buf, buf_size);
934

    
935
        emms_c(); //needed to avoid an emms_c() call before every return;
936

    
937
        if (*got_picture_ptr)
938
            avctx->frame_number++;
939
    }else
940
        ret= 0;
941

    
942
    return ret;
943
}
944

    
945
/* decode an audio frame. return -1 if error, otherwise return the
946
   *number of bytes used. If no frame could be decompressed,
947
   *frame_size_ptr is zero. Otherwise, it is the decompressed frame
948
   *size in BYTES. */
949
int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples,
950
                         int *frame_size_ptr,
951
                         uint8_t *buf, int buf_size)
952
{
953
    int ret;
954

    
955
    *frame_size_ptr= 0;
956
    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || buf_size){
957
        ret = avctx->codec->decode(avctx, samples, frame_size_ptr,
958
                                buf, buf_size);
959
        avctx->frame_number++;
960
    }else
961
        ret= 0;
962
    return ret;
963
}
964

    
965
/* decode a subtitle message. return -1 if error, otherwise return the
966
   *number of bytes used. If no subtitle could be decompressed,
967
   *got_sub_ptr is zero. Otherwise, the subtitle is stored in *sub. */
968
int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
969
                            int *got_sub_ptr,
970
                            const uint8_t *buf, int buf_size)
971
{
972
    int ret;
973

    
974
    *got_sub_ptr = 0;
975
    ret = avctx->codec->decode(avctx, sub, got_sub_ptr,
976
                               (uint8_t *)buf, buf_size);
977
    if (*got_sub_ptr)
978
        avctx->frame_number++;
979
    return ret;
980
}
981

    
982
int avcodec_close(AVCodecContext *avctx)
983
{
984
    entangled_thread_counter++;
985
    if(entangled_thread_counter != 1){
986
        av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
987
        entangled_thread_counter--;
988
        return -1;
989
    }
990

    
991
    if (avctx->codec->close)
992
        avctx->codec->close(avctx);
993
    avcodec_default_free_buffers(avctx);
994
    av_freep(&avctx->priv_data);
995
    avctx->codec = NULL;
996
    entangled_thread_counter--;
997
    return 0;
998
}
999

    
1000
AVCodec *avcodec_find_encoder(enum CodecID id)
1001
{
1002
    AVCodec *p;
1003
    p = first_avcodec;
1004
    while (p) {
1005
        if (p->encode != NULL && p->id == id)
1006
            return p;
1007
        p = p->next;
1008
    }
1009
    return NULL;
1010
}
1011

    
1012
AVCodec *avcodec_find_encoder_by_name(const char *name)
1013
{
1014
    AVCodec *p;
1015
    p = first_avcodec;
1016
    while (p) {
1017
        if (p->encode != NULL && strcmp(name,p->name) == 0)
1018
            return p;
1019
        p = p->next;
1020
    }
1021
    return NULL;
1022
}
1023

    
1024
AVCodec *avcodec_find_decoder(enum CodecID id)
1025
{
1026
    AVCodec *p;
1027
    p = first_avcodec;
1028
    while (p) {
1029
        if (p->decode != NULL && p->id == id)
1030
            return p;
1031
        p = p->next;
1032
    }
1033
    return NULL;
1034
}
1035

    
1036
AVCodec *avcodec_find_decoder_by_name(const char *name)
1037
{
1038
    AVCodec *p;
1039
    p = first_avcodec;
1040
    while (p) {
1041
        if (p->decode != NULL && strcmp(name,p->name) == 0)
1042
            return p;
1043
        p = p->next;
1044
    }
1045
    return NULL;
1046
}
1047

    
1048
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1049
{
1050
    const char *codec_name;
1051
    AVCodec *p;
1052
    char buf1[32];
1053
    char channels_str[100];
1054
    int bitrate;
1055

    
1056
    if (encode)
1057
        p = avcodec_find_encoder(enc->codec_id);
1058
    else
1059
        p = avcodec_find_decoder(enc->codec_id);
1060

    
1061
    if (p) {
1062
        codec_name = p->name;
1063
        if (!encode && enc->codec_id == CODEC_ID_MP3) {
1064
            if (enc->sub_id == 2)
1065
                codec_name = "mp2";
1066
            else if (enc->sub_id == 1)
1067
                codec_name = "mp1";
1068
        }
1069
    } else if (enc->codec_id == CODEC_ID_MPEG2TS) {
1070
        /* fake mpeg2 transport stream codec (currently not
1071
           registered) */
1072
        codec_name = "mpeg2ts";
1073
    } else if (enc->codec_name[0] != '\0') {
1074
        codec_name = enc->codec_name;
1075
    } else {
1076
        /* output avi tags */
1077
        if(   isprint(enc->codec_tag&0xFF) && isprint((enc->codec_tag>>8)&0xFF)
1078
           && isprint((enc->codec_tag>>16)&0xFF) && isprint((enc->codec_tag>>24)&0xFF)){
1079
            snprintf(buf1, sizeof(buf1), "%c%c%c%c / 0x%04X",
1080
                     enc->codec_tag & 0xff,
1081
                     (enc->codec_tag >> 8) & 0xff,
1082
                     (enc->codec_tag >> 16) & 0xff,
1083
                     (enc->codec_tag >> 24) & 0xff,
1084
                      enc->codec_tag);
1085
        } else {
1086
            snprintf(buf1, sizeof(buf1), "0x%04x", enc->codec_tag);
1087
        }
1088
        codec_name = buf1;
1089
    }
1090

    
1091
    switch(enc->codec_type) {
1092
    case CODEC_TYPE_VIDEO:
1093
        snprintf(buf, buf_size,
1094
                 "Video: %s%s",
1095
                 codec_name, enc->mb_decision ? " (hq)" : "");
1096
        if (enc->pix_fmt != PIX_FMT_NONE) {
1097
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1098
                     ", %s",
1099
                     avcodec_get_pix_fmt_name(enc->pix_fmt));
1100
        }
1101
        if (enc->width) {
1102
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1103
                     ", %dx%d",
1104
                     enc->width, enc->height);
1105
            if(av_log_get_level() >= AV_LOG_DEBUG){
1106
                int g= ff_gcd(enc->time_base.num, enc->time_base.den);
1107
                snprintf(buf + strlen(buf), buf_size - strlen(buf),
1108
                     ", %d/%d",
1109
                     enc->time_base.num/g, enc->time_base.den/g);
1110
            }
1111
        }
1112
        if (encode) {
1113
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1114
                     ", q=%d-%d", enc->qmin, enc->qmax);
1115
        }
1116
        bitrate = enc->bit_rate;
1117
        break;
1118
    case CODEC_TYPE_AUDIO:
1119
        snprintf(buf, buf_size,
1120
                 "Audio: %s",
1121
                 codec_name);
1122
        switch (enc->channels) {
1123
            case 1:
1124
                strcpy(channels_str, "mono");
1125
                break;
1126
            case 2:
1127
                strcpy(channels_str, "stereo");
1128
                break;
1129
            case 6:
1130
                strcpy(channels_str, "5:1");
1131
                break;
1132
            default:
1133
                snprintf(channels_str, sizeof(channels_str), "%d channels", enc->channels);
1134
                break;
1135
        }
1136
        if (enc->sample_rate) {
1137
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1138
                     ", %d Hz, %s",
1139
                     enc->sample_rate,
1140
                     channels_str);
1141
        }
1142

    
1143
        /* for PCM codecs, compute bitrate directly */
1144
        switch(enc->codec_id) {
1145
        case CODEC_ID_PCM_S32LE:
1146
        case CODEC_ID_PCM_S32BE:
1147
        case CODEC_ID_PCM_U32LE:
1148
        case CODEC_ID_PCM_U32BE:
1149
            bitrate = enc->sample_rate * enc->channels * 32;
1150
            break;
1151
        case CODEC_ID_PCM_S24LE:
1152
        case CODEC_ID_PCM_S24BE:
1153
        case CODEC_ID_PCM_U24LE:
1154
        case CODEC_ID_PCM_U24BE:
1155
        case CODEC_ID_PCM_S24DAUD:
1156
            bitrate = enc->sample_rate * enc->channels * 24;
1157
            break;
1158
        case CODEC_ID_PCM_S16LE:
1159
        case CODEC_ID_PCM_S16BE:
1160
        case CODEC_ID_PCM_U16LE:
1161
        case CODEC_ID_PCM_U16BE:
1162
            bitrate = enc->sample_rate * enc->channels * 16;
1163
            break;
1164
        case CODEC_ID_PCM_S8:
1165
        case CODEC_ID_PCM_U8:
1166
        case CODEC_ID_PCM_ALAW:
1167
        case CODEC_ID_PCM_MULAW:
1168
            bitrate = enc->sample_rate * enc->channels * 8;
1169
            break;
1170
        default:
1171
            bitrate = enc->bit_rate;
1172
            break;
1173
        }
1174
        break;
1175
    case CODEC_TYPE_DATA:
1176
        snprintf(buf, buf_size, "Data: %s", codec_name);
1177
        bitrate = enc->bit_rate;
1178
        break;
1179
    case CODEC_TYPE_SUBTITLE:
1180
        snprintf(buf, buf_size, "Subtitle: %s", codec_name);
1181
        bitrate = enc->bit_rate;
1182
        break;
1183
    default:
1184
        snprintf(buf, buf_size, "Invalid Codec type %d", enc->codec_type);
1185
        return;
1186
    }
1187
    if (encode) {
1188
        if (enc->flags & CODEC_FLAG_PASS1)
1189
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1190
                     ", pass 1");
1191
        if (enc->flags & CODEC_FLAG_PASS2)
1192
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1193
                     ", pass 2");
1194
    }
1195
    if (bitrate != 0) {
1196
        snprintf(buf + strlen(buf), buf_size - strlen(buf),
1197
                 ", %d kb/s", bitrate / 1000);
1198
    }
1199
}
1200

    
1201
unsigned avcodec_version( void )
1202
{
1203
  return LIBAVCODEC_VERSION_INT;
1204
}
1205

    
1206
unsigned avcodec_build( void )
1207
{
1208
  return LIBAVCODEC_BUILD;
1209
}
1210

    
1211
static void init_crcs(void){
1212
    av_crc04C11DB7= av_mallocz_static(sizeof(AVCRC) * 257);
1213
    av_crc8005    = av_mallocz_static(sizeof(AVCRC) * 257);
1214
    av_crc07      = av_mallocz_static(sizeof(AVCRC) * 257);
1215
    av_crc_init(av_crc04C11DB7, 0, 32, 0x04c11db7, sizeof(AVCRC)*257);
1216
    av_crc_init(av_crc8005    , 0, 16, 0x8005    , sizeof(AVCRC)*257);
1217
    av_crc_init(av_crc07      , 0,  8, 0x07      , sizeof(AVCRC)*257);
1218
}
1219

    
1220
/* must be called before any other functions */
1221
void avcodec_init(void)
1222
{
1223
    static int inited = 0;
1224

    
1225
    if (inited != 0)
1226
        return;
1227
    inited = 1;
1228

    
1229
    dsputil_static_init();
1230
    init_crcs();
1231
}
1232

    
1233
/**
1234
 * Flush buffers, should be called when seeking or when swicthing to a different stream.
1235
 */
1236
void avcodec_flush_buffers(AVCodecContext *avctx)
1237
{
1238
    if(avctx->codec->flush)
1239
        avctx->codec->flush(avctx);
1240
}
1241

    
1242
void avcodec_default_free_buffers(AVCodecContext *s){
1243
    int i, j;
1244

    
1245
    if(s->internal_buffer==NULL) return;
1246

    
1247
    for(i=0; i<INTERNAL_BUFFER_SIZE; i++){
1248
        InternalBuffer *buf= &((InternalBuffer*)s->internal_buffer)[i];
1249
        for(j=0; j<4; j++){
1250
            av_freep(&buf->base[j]);
1251
            buf->data[j]= NULL;
1252
        }
1253
    }
1254
    av_freep(&s->internal_buffer);
1255

    
1256
    s->internal_buffer_count=0;
1257
}
1258

    
1259
char av_get_pict_type_char(int pict_type){
1260
    switch(pict_type){
1261
    case I_TYPE: return 'I';
1262
    case P_TYPE: return 'P';
1263
    case B_TYPE: return 'B';
1264
    case S_TYPE: return 'S';
1265
    case SI_TYPE:return 'i';
1266
    case SP_TYPE:return 'p';
1267
    default:     return '?';
1268
    }
1269
}
1270

    
1271
int av_get_bits_per_sample(enum CodecID codec_id){
1272
    switch(codec_id){
1273
    case CODEC_ID_ADPCM_SBPRO_2:
1274
        return 2;
1275
    case CODEC_ID_ADPCM_SBPRO_3:
1276
        return 3;
1277
    case CODEC_ID_ADPCM_SBPRO_4:
1278
    case CODEC_ID_ADPCM_CT:
1279
        return 4;
1280
    case CODEC_ID_PCM_ALAW:
1281
    case CODEC_ID_PCM_MULAW:
1282
    case CODEC_ID_PCM_S8:
1283
    case CODEC_ID_PCM_U8:
1284
        return 8;
1285
    case CODEC_ID_PCM_S16BE:
1286
    case CODEC_ID_PCM_S16LE:
1287
    case CODEC_ID_PCM_U16BE:
1288
    case CODEC_ID_PCM_U16LE:
1289
        return 16;
1290
    case CODEC_ID_PCM_S24DAUD:
1291
    case CODEC_ID_PCM_S24BE:
1292
    case CODEC_ID_PCM_S24LE:
1293
    case CODEC_ID_PCM_U24BE:
1294
    case CODEC_ID_PCM_U24LE:
1295
        return 24;
1296
    case CODEC_ID_PCM_S32BE:
1297
    case CODEC_ID_PCM_S32LE:
1298
    case CODEC_ID_PCM_U32BE:
1299
    case CODEC_ID_PCM_U32LE:
1300
        return 32;
1301
    default:
1302
        return 0;
1303
    }
1304
}
1305

    
1306
#if !defined(HAVE_THREADS)
1307
int avcodec_thread_init(AVCodecContext *s, int thread_count){
1308
    return -1;
1309
}
1310
#endif
1311

    
1312
unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1313
{
1314
    unsigned int n = 0;
1315

    
1316
    while(v >= 0xff) {
1317
        *s++ = 0xff;
1318
        v -= 0xff;
1319
        n++;
1320
    }
1321
    *s = v;
1322
    n++;
1323
    return n;
1324
}
1325

    
1326
/* Wrapper to work around the lack of mkstemp() on mingw/cygin.
1327
 * Also, tries to create file in /tmp first, if possible.
1328
 * *prefix can be a character constant; *filename will be allocated internally.
1329
 * Returns file descriptor of opened file (or -1 on error)
1330
 * and opened file name in **filename. */
1331
int av_tempfile(char *prefix, char **filename) {
1332
    int fd=-1;
1333
#ifdef __MINGW32__
1334
    *filename = tempnam(".", prefix);
1335
#else
1336
    size_t len = strlen(prefix) + 12; /* room for "/tmp/" and "XXXXXX\0" */
1337
    *filename = av_malloc(len);
1338
#endif
1339
    /* -----common section-----*/
1340
    if (*filename == NULL) {
1341
        av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot allocate file name\n");
1342
        return -1;
1343
    }
1344
#ifdef __MINGW32__
1345
    fd = open(*filename, _O_RDWR | _O_BINARY | _O_CREAT, 0444);
1346
#else
1347
    snprintf(*filename, len, "/tmp/%sXXXXXX", prefix);
1348
    fd = mkstemp(*filename);
1349
    if (fd < 0) {
1350
        snprintf(*filename, len, "./%sXXXXXX", prefix);
1351
        fd = mkstemp(*filename);
1352
    }
1353
#endif
1354
    /* -----common section-----*/
1355
    if (fd < 0) {
1356
        av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot open temporary file %s\n", *filename);
1357
        return -1;
1358
    }
1359
    return fd; /* success */
1360
}