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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
/**
61
 * realloc which does nothing if the block is large enough
62
 */
63
void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size)
64
{
65
    if(min_size < *size)
66
        return ptr;
67

    
68
    *size= FFMAX(17*min_size/16 + 32, min_size);
69

    
70
    return av_realloc(ptr, *size);
71
}
72

    
73
static unsigned int last_static = 0;
74
static unsigned int allocated_static = 0;
75
static void** array_static = NULL;
76

    
77
/**
78
 * allocation of static arrays - do not use for normal allocation.
79
 */
80
void *av_mallocz_static(unsigned int size)
81
{
82
    void *ptr = av_mallocz(size);
83

    
84
    if(ptr){
85
        array_static =av_fast_realloc(array_static, &allocated_static, sizeof(void*)*(last_static+1));
86
        if(!array_static)
87
            return NULL;
88
        array_static[last_static++] = ptr;
89
    }
90

    
91
    return ptr;
92
}
93

    
94
/**
95
 * same as above, but does realloc
96
 */
97

    
98
void *av_realloc_static(void *ptr, unsigned int size)
99
{
100
    int i;
101
    if(!ptr)
102
      return av_mallocz_static(size);
103
    /* Look for the old ptr */
104
    for(i = 0; i < last_static; i++) {
105
        if(array_static[i] == ptr) {
106
            array_static[i] = av_realloc(array_static[i], size);
107
            return array_static[i];
108
        }
109
    }
110
    return NULL;
111

    
112
}
113

    
114
/**
115
 * free all static arrays and reset pointers to 0.
116
 */
117
void av_free_static(void)
118
{
119
    while(last_static){
120
        av_freep(&array_static[--last_static]);
121
    }
122
    av_freep(&array_static);
123
}
124

    
125
/**
126
 * Call av_free_static automatically before it's too late
127
 */
128

    
129
static void do_free(void) __attribute__ ((destructor));
130

    
131
static void do_free(void)
132
{
133
    av_free_static();
134
}
135

    
136

    
137
/* encoder management */
138
AVCodec *first_avcodec = NULL;
139

    
140
void register_avcodec(AVCodec *format)
141
{
142
    AVCodec **p;
143
    p = &first_avcodec;
144
    while (*p != NULL) p = &(*p)->next;
145
    *p = format;
146
    format->next = NULL;
147
}
148

    
149
void avcodec_set_dimensions(AVCodecContext *s, int width, int height){
150
    s->coded_width = width;
151
    s->coded_height= height;
152
    s->width = -((-width )>>s->lowres);
153
    s->height= -((-height)>>s->lowres);
154
}
155

    
156
typedef struct InternalBuffer{
157
    int last_pic_num;
158
    uint8_t *base[4];
159
    uint8_t *data[4];
160
    int linesize[4];
161
}InternalBuffer;
162

    
163
#define INTERNAL_BUFFER_SIZE 32
164

    
165
#define ALIGN(x, a) (((x)+(a)-1)&~((a)-1))
166

    
167
void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height){
168
    int w_align= 1;
169
    int h_align= 1;
170

    
171
    switch(s->pix_fmt){
172
    case PIX_FMT_YUV420P:
173
    case PIX_FMT_YUV422:
174
    case PIX_FMT_UYVY422:
175
    case PIX_FMT_YUV422P:
176
    case PIX_FMT_YUV444P:
177
    case PIX_FMT_GRAY8:
178
    case PIX_FMT_YUVJ420P:
179
    case PIX_FMT_YUVJ422P:
180
    case PIX_FMT_YUVJ444P:
181
        w_align= 16; //FIXME check for non mpeg style codecs and use less alignment
182
        h_align= 16;
183
        break;
184
    case PIX_FMT_YUV411P:
185
    case PIX_FMT_UYVY411:
186
        w_align=32;
187
        h_align=8;
188
        break;
189
    case PIX_FMT_YUV410P:
190
        if(s->codec_id == CODEC_ID_SVQ1){
191
            w_align=64;
192
            h_align=64;
193
        }
194
    case PIX_FMT_RGB555:
195
        if(s->codec_id == CODEC_ID_RPZA){
196
            w_align=4;
197
            h_align=4;
198
        }
199
    case PIX_FMT_PAL8:
200
        if(s->codec_id == CODEC_ID_SMC){
201
            w_align=4;
202
            h_align=4;
203
        }
204
        break;
205
    case PIX_FMT_BGR24:
206
        if((s->codec_id == CODEC_ID_MSZH) || (s->codec_id == CODEC_ID_ZLIB)){
207
            w_align=4;
208
            h_align=4;
209
        }
210
        break;
211
    default:
212
        w_align= 1;
213
        h_align= 1;
214
        break;
215
    }
216

    
217
    *width = ALIGN(*width , w_align);
218
    *height= ALIGN(*height, h_align);
219
}
220

    
221
int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h){
222
    if((int)w>0 && (int)h>0 && (w+128)*(uint64_t)(h+128) < INT_MAX/4)
223
        return 0;
224

    
225
    av_log(av_log_ctx, AV_LOG_ERROR, "picture size invalid (%ux%u)\n", w, h);
226
    return -1;
227
}
228

    
229
int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic){
230
    int i;
231
    int w= s->width;
232
    int h= s->height;
233
    InternalBuffer *buf;
234
    int *picture_number;
235

    
236
    assert(pic->data[0]==NULL);
237
    assert(INTERNAL_BUFFER_SIZE > s->internal_buffer_count);
238

    
239
    if(avcodec_check_dimensions(s,w,h))
240
        return -1;
241

    
242
    if(s->internal_buffer==NULL){
243
        s->internal_buffer= av_mallocz(INTERNAL_BUFFER_SIZE*sizeof(InternalBuffer));
244
    }
245
#if 0
246
    s->internal_buffer= av_fast_realloc(
247
        s->internal_buffer,
248
        &s->internal_buffer_size,
249
        sizeof(InternalBuffer)*FFMAX(99,  s->internal_buffer_count+1)/*FIXME*/
250
        );
251
#endif
252

    
253
    buf= &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count];
254
    picture_number= &(((InternalBuffer*)s->internal_buffer)[INTERNAL_BUFFER_SIZE-1]).last_pic_num; //FIXME ugly hack
255
    (*picture_number)++;
256

    
257
    if(buf->base[0]){
258
        pic->age= *picture_number - buf->last_pic_num;
259
        buf->last_pic_num= *picture_number;
260
    }else{
261
        int h_chroma_shift, v_chroma_shift;
262
        int pixel_size, size[3];
263
        AVPicture picture;
264

    
265
        avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
266

    
267
        avcodec_align_dimensions(s, &w, &h);
268

    
269
        if(!(s->flags&CODEC_FLAG_EMU_EDGE)){
270
            w+= EDGE_WIDTH*2;
271
            h+= EDGE_WIDTH*2;
272
        }
273
        avpicture_fill(&picture, NULL, s->pix_fmt, w, h);
274
        pixel_size= picture.linesize[0]*8 / w;
275
//av_log(NULL, AV_LOG_ERROR, "%d %d %d %d\n", (int)picture.data[1], w, h, s->pix_fmt);
276
        assert(pixel_size>=1);
277
            //FIXME next ensures that linesize= 2^x uvlinesize, thats needed because some MC code assumes it
278
        if(pixel_size == 3*8)
279
            w= ALIGN(w, STRIDE_ALIGN<<h_chroma_shift);
280
        else
281
            w= ALIGN(pixel_size*w, STRIDE_ALIGN<<(h_chroma_shift+3)) / pixel_size;
282
        size[1] = avpicture_fill(&picture, NULL, s->pix_fmt, w, h);
283
        size[0] = picture.linesize[0] * h;
284
        size[1] -= size[0];
285
        if(picture.data[2])
286
            size[1]= size[2]= size[1]/2;
287
        else
288
            size[2]= 0;
289

    
290
        buf->last_pic_num= -256*256*256*64;
291
        memset(buf->base, 0, sizeof(buf->base));
292
        memset(buf->data, 0, sizeof(buf->data));
293

    
294
        for(i=0; i<3 && size[i]; i++){
295
            const int h_shift= i==0 ? 0 : h_chroma_shift;
296
            const int v_shift= i==0 ? 0 : v_chroma_shift;
297

    
298
            buf->linesize[i]= picture.linesize[i];
299

    
300
            buf->base[i]= av_malloc(size[i]+16); //FIXME 16
301
            if(buf->base[i]==NULL) return -1;
302
            memset(buf->base[i], 128, size[i]);
303

    
304
            // no edge if EDEG EMU or not planar YUV, we check for PAL8 redundantly to protect against a exploitable bug regression ...
305
            if((s->flags&CODEC_FLAG_EMU_EDGE) || (s->pix_fmt == PIX_FMT_PAL8) || !size[2])
306
                buf->data[i] = buf->base[i];
307
            else
308
                buf->data[i] = buf->base[i] + ALIGN((buf->linesize[i]*EDGE_WIDTH>>v_shift) + (EDGE_WIDTH>>h_shift), STRIDE_ALIGN);
309
        }
310
        pic->age= 256*256*256*64;
311
    }
312
    pic->type= FF_BUFFER_TYPE_INTERNAL;
313

    
314
    for(i=0; i<4; i++){
315
        pic->base[i]= buf->base[i];
316
        pic->data[i]= buf->data[i];
317
        pic->linesize[i]= buf->linesize[i];
318
    }
319
    s->internal_buffer_count++;
320

    
321
    return 0;
322
}
323

    
324
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic){
325
    int i;
326
    InternalBuffer *buf, *last, temp;
327

    
328
    assert(pic->type==FF_BUFFER_TYPE_INTERNAL);
329
    assert(s->internal_buffer_count);
330

    
331
    buf = NULL; /* avoids warning */
332
    for(i=0; i<s->internal_buffer_count; i++){ //just 3-5 checks so is not worth to optimize
333
        buf= &((InternalBuffer*)s->internal_buffer)[i];
334
        if(buf->data[0] == pic->data[0])
335
            break;
336
    }
337
    assert(i < s->internal_buffer_count);
338
    s->internal_buffer_count--;
339
    last = &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count];
340

    
341
    temp= *buf;
342
    *buf= *last;
343
    *last= temp;
344

    
345
    for(i=0; i<3; i++){
346
        pic->data[i]=NULL;
347
//        pic->base[i]=NULL;
348
    }
349
//printf("R%X\n", pic->opaque);
350
}
351

    
352
int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic){
353
    AVFrame temp_pic;
354
    int i;
355

    
356
    /* If no picture return a new buffer */
357
    if(pic->data[0] == NULL) {
358
        /* We will copy from buffer, so must be readable */
359
        pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
360
        return s->get_buffer(s, pic);
361
    }
362

    
363
    /* If internal buffer type return the same buffer */
364
    if(pic->type == FF_BUFFER_TYPE_INTERNAL)
365
        return 0;
366

    
367
    /*
368
     * Not internal type and reget_buffer not overridden, emulate cr buffer
369
     */
370
    temp_pic = *pic;
371
    for(i = 0; i < 4; i++)
372
        pic->data[i] = pic->base[i] = NULL;
373
    pic->opaque = NULL;
374
    /* Allocate new frame */
375
    if (s->get_buffer(s, pic))
376
        return -1;
377
    /* Copy image data from old buffer to new buffer */
378
    img_copy((AVPicture*)pic, (AVPicture*)&temp_pic, s->pix_fmt, s->width,
379
             s->height);
380
    s->release_buffer(s, &temp_pic); // Release old frame
381
    return 0;
382
}
383

    
384
int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count){
385
    int i;
386

    
387
    for(i=0; i<count; i++){
388
        int r= func(c, arg[i]);
389
        if(ret) ret[i]= r;
390
    }
391
    return 0;
392
}
393

    
394
enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt){
395
    return fmt[0];
396
}
397

    
398
static const char* context_to_name(void* ptr) {
399
    AVCodecContext *avc= ptr;
400

    
401
    if(avc && avc->codec && avc->codec->name)
402
        return avc->codec->name;
403
    else
404
        return "NULL";
405
}
406

    
407
#define OFFSET(x) offsetof(AVCodecContext,x)
408
#define DEFAULT 0 //should be NAN but it doesnt work as its not a constant in glibc as required by ANSI/ISO C
409
//these names are too long to be readable
410
#define V AV_OPT_FLAG_VIDEO_PARAM
411
#define A AV_OPT_FLAG_AUDIO_PARAM
412
#define S AV_OPT_FLAG_SUBTITLE_PARAM
413
#define E AV_OPT_FLAG_ENCODING_PARAM
414
#define D AV_OPT_FLAG_DECODING_PARAM
415

    
416
#define AV_CODEC_DEFAULT_BITRATE 200*1000
417

    
418
static const AVOption options[]={
419
{"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},
420
{"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},
421
{"flags", NULL, OFFSET(flags), FF_OPT_TYPE_FLAGS, DEFAULT, INT_MIN, INT_MAX, V|A|E|D, "flags"},
422
{"mv4", "use four motion vector by macroblock (mpeg4)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_4MV, INT_MIN, INT_MAX, V|E, "flags"},
423
{"obmc", "use overlapped block motion compensation (h263+)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_OBMC, INT_MIN, INT_MAX, V|E, "flags"},
424
{"qpel", "use 1/4 pel motion compensation", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_QPEL, INT_MIN, INT_MAX, V|E, "flags"},
425
{"loop", "use loop filter", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_LOOP_FILTER, INT_MIN, INT_MAX, V|E, "flags"},
426
{"qscale", "use fixed qscale", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_QSCALE, INT_MIN, INT_MAX, 0, "flags"},
427
{"gmc", "use gmc", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_GMC, INT_MIN, INT_MAX, V|E, "flags"},
428
{"mv0", "always try a mb with mv=<0,0>", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_MV0, INT_MIN, INT_MAX, V|E, "flags"},
429
{"part", "use data partitioning", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PART, INT_MIN, INT_MAX, V|E, "flags"},
430
{"input_preserved", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG_INPUT_PRESERVED, INT_MIN, INT_MAX, 0, "flags"},
431
{"pass1", "use internal 2pass ratecontrol in first  pass mode", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PASS1, INT_MIN, INT_MAX, 0, "flags"},
432
{"pass2", "use internal 2pass ratecontrol in second pass mode", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PASS2, INT_MIN, INT_MAX, 0, "flags"},
433
{"extern_huff", "use external huffman table (for mjpeg)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_EXTERN_HUFF, INT_MIN, INT_MAX, 0, "flags"},
434
{"gray", "only decode/encode grayscale", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_GRAY, INT_MIN, INT_MAX, V|E|D, "flags"},
435
{"emu_edge", "don't draw edges", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_EMU_EDGE, INT_MIN, INT_MAX, 0, "flags"},
436
{"psnr", "error[?] variables will be set during encoding", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PSNR, INT_MIN, INT_MAX, V|E, "flags"},
437
{"truncated", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG_TRUNCATED, INT_MIN, INT_MAX, 0, "flags"},
438
{"naq", "normalize adaptive quantization", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_NORMALIZE_AQP, INT_MIN, INT_MAX, V|E, "flags"},
439
{"ildct", "use interlaced dct", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_INTERLACED_DCT, INT_MIN, INT_MAX, V|E, "flags"},
440
{"low_delay", "force low delay", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_LOW_DELAY, INT_MIN, INT_MAX, V|D, "flags"},
441
{"alt", "enable alternate scantable (mpeg2/mpeg4)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_ALT_SCAN, INT_MIN, INT_MAX, V|E, "flags"},
442
{"trell", "use trellis quantization", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_TRELLIS_QUANT, INT_MIN, INT_MAX, V|E, "flags"},
443
{"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"},
444
{"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"},
445
{"aic", "h263 advanced intra coding / mpeg4 ac prediction", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_AC_PRED, INT_MIN, INT_MAX, V|E, "flags"},
446
{"umv", "use unlimited motion vectors", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_H263P_UMV, INT_MIN, INT_MAX, V|E, "flags"},
447
{"cbp", "use rate distortion optimization for cbp", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_CBP_RD, INT_MIN, INT_MAX, V|E, "flags"},
448
{"qprd", "use rate distortion optimization for qp selection", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_QP_RD, INT_MIN, INT_MAX, V|E, "flags"},
449
{"aiv", "h263 alternative inter vlc", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_H263P_AIV, INT_MIN, INT_MAX, V|E, "flags"},
450
{"slice", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG_H263P_SLICE_STRUCT, INT_MIN, INT_MAX, V|E, "flags"},
451
{"ilme", "interlaced motion estimation", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_INTERLACED_ME, INT_MIN, INT_MAX, V|E, "flags"},
452
{"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"},
453
{"cgop", "closed gop", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_CLOSED_GOP, INT_MIN, INT_MAX, V|E, "flags"},
454
{"fast", "allow non spec compliant speedup tricks", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_FAST, INT_MIN, INT_MAX, V|E, "flags2"},
455
{"sgop", "strictly enforce gop size", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_STRICT_GOP, INT_MIN, INT_MAX, V|E, "flags2"},
456
{"noout", "skip bitstream encoding", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_NO_OUTPUT, INT_MIN, INT_MAX, V|E, "flags2"},
457
{"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"},
458
{"sub_id", NULL, OFFSET(sub_id), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
459
{"me_method", "set motion estimation method", OFFSET(me_method), FF_OPT_TYPE_INT, ME_EPZS, INT_MIN, INT_MAX, V|E, "me_method"},
460
{"extradata_size", NULL, OFFSET(extradata_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
461
{"time_base", NULL, OFFSET(time_base), FF_OPT_TYPE_RATIONAL, DEFAULT, INT_MIN, INT_MAX},
462
{"g", "set the group of picture size", OFFSET(gop_size), FF_OPT_TYPE_INT, 12, INT_MIN, INT_MAX, V|E},
463
{"rate_emu", NULL, OFFSET(rate_emu), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
464
{"ar", "set audio sampling rate (in Hz)", OFFSET(sample_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
465
{"ac", "set number of audio channels", OFFSET(channels), FF_OPT_TYPE_INT, 1, INT_MIN, INT_MAX},
466
{"cutoff", "set cutoff bandwidth", OFFSET(cutoff), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, A|E},
467
{"frame_size", NULL, OFFSET(frame_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, A|E},
468
{"frame_number", NULL, OFFSET(frame_number), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
469
{"real_pict_num", NULL, OFFSET(real_pict_num), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
470
{"delay", NULL, OFFSET(delay), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
471
{"qcomp", "video quantiser scale compression (VBR)", OFFSET(qcompress), FF_OPT_TYPE_FLOAT, 0.5, FLT_MIN, FLT_MAX, V|E},
472
{"qblur", "video quantiser scale blur (VBR)", OFFSET(qblur), FF_OPT_TYPE_FLOAT, 0.5, FLT_MIN, FLT_MAX, V|E},
473
{"qmin", "min video quantiser scale (VBR)", OFFSET(qmin), FF_OPT_TYPE_INT, 2, 1, 51, V|E},
474
{"qmax", "max video quantiser scale (VBR)", OFFSET(qmax), FF_OPT_TYPE_INT, 31, 1, 51, V|E},
475
{"qdiff", "max difference between the quantiser scale (VBR)", OFFSET(max_qdiff), FF_OPT_TYPE_INT, 3, INT_MIN, INT_MAX, V|E},
476
{"bf", "use 'frames' B frames", OFFSET(max_b_frames), FF_OPT_TYPE_INT, DEFAULT, 0, FF_MAX_B_FRAMES, V|E},
477
{"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},
478
{"rc_strategy", NULL, OFFSET(rc_strategy), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
479
{"b_strategy", NULL, OFFSET(b_frame_strategy), FF_OPT_TYPE_INT, 0, INT_MIN, INT_MAX, V|E},
480
{"hurry_up", NULL, OFFSET(hurry_up), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D},
481
{"rtp_mode", NULL, OFFSET(rtp_mode), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
482
{"rtp_payload_size", NULL, OFFSET(rtp_payload_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
483
{"mv_bits", NULL, OFFSET(mv_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
484
{"header_bits", NULL, OFFSET(header_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
485
{"i_tex_bits", NULL, OFFSET(i_tex_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
486
{"p_tex_bits", NULL, OFFSET(p_tex_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
487
{"i_count", NULL, OFFSET(i_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
488
{"p_count", NULL, OFFSET(p_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
489
{"skip_count", NULL, OFFSET(skip_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
490
{"misc_bits", NULL, OFFSET(misc_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
491
{"frame_bits", NULL, OFFSET(frame_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
492
{"codec_tag", NULL, OFFSET(codec_tag), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
493
{"bug", "workaround not auto detected encoder bugs", OFFSET(workaround_bugs), FF_OPT_TYPE_FLAGS, FF_BUG_AUTODETECT, INT_MIN, INT_MAX, V|D, "bug"},
494
{"autodetect", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_AUTODETECT, INT_MIN, INT_MAX, V|D, "bug"},
495
{"old_msmpeg4", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_OLD_MSMPEG4, INT_MIN, INT_MAX, V|D, "bug"},
496
{"xvid_ilace", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_XVID_ILACE, INT_MIN, INT_MAX, V|D, "bug"},
497
{"ump4", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_UMP4, INT_MIN, INT_MAX, V|D, "bug"},
498
{"no_padding", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_NO_PADDING, INT_MIN, INT_MAX, V|D, "bug"},
499
{"amv", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_AMV, INT_MIN, INT_MAX, V|D, "bug"},
500
{"ac_vlc", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_AC_VLC, INT_MIN, INT_MAX, V|D, "bug"},
501
{"qpel_chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_QPEL_CHROMA, INT_MIN, INT_MAX, V|D, "bug"},
502
{"std_qpel", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_STD_QPEL, INT_MIN, INT_MAX, V|D, "bug"},
503
{"qpel_chroma2", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_QPEL_CHROMA2, INT_MIN, INT_MAX, V|D, "bug"},
504
{"direct_blocksize", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_DIRECT_BLOCKSIZE, INT_MIN, INT_MAX, V|D, "bug"},
505
{"edge", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_EDGE, INT_MIN, INT_MAX, V|D, "bug"},
506
{"hpel_chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_HPEL_CHROMA, INT_MIN, INT_MAX, V|D, "bug"},
507
{"dc_clip", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_DC_CLIP, INT_MIN, INT_MAX, V|D, "bug"},
508
{"ms", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_MS, INT_MIN, INT_MAX, V|D, "bug"},
509
{"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},
510
{"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},
511
{"strict", "how strictly to follow the standards", OFFSET(strict_std_compliance), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "strict"},
512
{"very", NULL, 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_VERY_STRICT, INT_MIN, INT_MAX, V|E, "strict"},
513
{"strict", NULL, 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_STRICT, INT_MIN, INT_MAX, V|E, "strict"},
514
{"normal", NULL, 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_NORMAL, INT_MIN, INT_MAX, V|E, "strict"},
515
{"inofficial", NULL, 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_INOFFICIAL, INT_MIN, INT_MAX, V|E, "strict"},
516
{"experimental", NULL, 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_EXPERIMENTAL, INT_MIN, INT_MAX, V|E, "strict"},
517
{"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},
518
{"er", NULL, OFFSET(error_resilience), FF_OPT_TYPE_INT, FF_ER_CAREFUL, INT_MIN, INT_MAX, V|D, "er"},
519
{"careful", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_CAREFUL, INT_MIN, INT_MAX, V|D, "er"},
520
{"compliant", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_COMPLIANT, INT_MIN, INT_MAX, V|D, "er"},
521
{"aggressive", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_AGGRESSIVE, INT_MIN, INT_MAX, V|D, "er"},
522
{"very_aggressive", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_VERY_AGGRESSIVE, INT_MIN, INT_MAX, V|D, "er"},
523
{"has_b_frames", NULL, OFFSET(has_b_frames), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
524
{"block_align", NULL, OFFSET(block_align), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
525
{"parse_only", NULL, OFFSET(parse_only), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
526
{"mpeg_quant", NULL, OFFSET(mpeg_quant), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
527
{"stats_out", NULL, OFFSET(stats_out), FF_OPT_TYPE_STRING, DEFAULT, CHAR_MIN, CHAR_MAX},
528
{"stats_in", NULL, OFFSET(stats_in), FF_OPT_TYPE_STRING, DEFAULT, CHAR_MIN, CHAR_MAX},
529
{"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},
530
{"rc_qmod_amp", NULL, OFFSET(rc_qmod_amp), FF_OPT_TYPE_FLOAT, DEFAULT, -FLT_MAX, FLT_MAX, V|E},
531
{"rc_qmod_freq", NULL, OFFSET(rc_qmod_freq), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
532
{"rc_override_count", NULL, OFFSET(rc_override_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
533
{"rc_eq", "set rate control equation", OFFSET(rc_eq), FF_OPT_TYPE_STRING, DEFAULT, CHAR_MIN, CHAR_MAX, V|E},
534
{"maxrate", "set max video bitrate tolerance (in bits/s)", OFFSET(rc_max_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
535
{"minrate", "set min video bitrate tolerance (in bits/s)", OFFSET(rc_min_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
536
{"bufsize", "set ratecontrol buffer size (in bits)", OFFSET(rc_buffer_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
537
{"rc_buf_aggressivity", NULL, OFFSET(rc_buffer_aggressivity), FF_OPT_TYPE_FLOAT, 1.0, FLT_MIN, FLT_MAX, V|E},
538
{"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},
539
{"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},
540
{"rc_init_cplx", "initial complexity for 1-pass encoding", OFFSET(rc_initial_cplx), FF_OPT_TYPE_FLOAT, DEFAULT, -FLT_MAX, FLT_MAX, V|E},
541
{"dct", NULL, OFFSET(dct_algo), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, V|E, "dct"},
542
{"auto", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_AUTO, INT_MIN, INT_MAX, V|E, "dct"},
543
{"fastint", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_FASTINT, INT_MIN, INT_MAX, V|E, "dct"},
544
{"int", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_INT, INT_MIN, INT_MAX, V|E, "dct"},
545
{"mmx", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_MMX, INT_MIN, INT_MAX, V|E, "dct"},
546
{"mlib", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_MLIB, INT_MIN, INT_MAX, V|E, "dct"},
547
{"altivec", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_ALTIVEC, INT_MIN, INT_MAX, V|E, "dct"},
548
{"faan", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_FAAN, INT_MIN, INT_MAX, V|E, "dct"},
549
{"lumi_mask", "lumimasking", OFFSET(lumi_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
550
{"tcplx_mask", "temporal complexity masking", OFFSET(temporal_cplx_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
551
{"scplx_mask", "spatial complexity masking", OFFSET(spatial_cplx_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
552
{"p_mask", "inter masking", OFFSET(p_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
553
{"dark_mask", "darkness masking", OFFSET(dark_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
554
{"unused", NULL, OFFSET(unused), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
555
{"idct", NULL, OFFSET(idct_algo), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, V|E|D, "idct"},
556
{"auto", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_AUTO, INT_MIN, INT_MAX, V|E|D, "idct"},
557
{"int", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_INT, INT_MIN, INT_MAX, V|E|D, "idct"},
558
{"simple", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLE, INT_MIN, INT_MAX, V|E|D, "idct"},
559
{"simplemmx", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEMMX, INT_MIN, INT_MAX, V|E|D, "idct"},
560
{"libmpeg2mmx", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_LIBMPEG2MMX, INT_MIN, INT_MAX, V|E|D, "idct"},
561
{"ps2", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_PS2, INT_MIN, INT_MAX, V|E|D, "idct"},
562
{"mlib", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_MLIB, INT_MIN, INT_MAX, V|E|D, "idct"},
563
{"arm", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_ARM, INT_MIN, INT_MAX, V|E|D, "idct"},
564
{"altivec", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_ALTIVEC, INT_MIN, INT_MAX, V|E|D, "idct"},
565
{"sh4", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SH4, INT_MIN, INT_MAX, V|E|D, "idct"},
566
{"simplearm", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEARM, INT_MIN, INT_MAX, V|E|D, "idct"},
567
{"simplearmv5te", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEARMV5TE, INT_MIN, INT_MAX, V|E|D, "idct"},
568
{"h264", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_H264, INT_MIN, INT_MAX, V|E|D, "idct"},
569
{"vp3", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_VP3, INT_MIN, INT_MAX, V|E|D, "idct"},
570
{"ipp", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_IPP, INT_MIN, INT_MAX, V|E|D, "idct"},
571
{"xvidmmx", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_XVIDMMX, INT_MIN, INT_MAX, V|E|D, "idct"},
572
{"slice_count", NULL, OFFSET(slice_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
573
{"ec", NULL, OFFSET(error_concealment), FF_OPT_TYPE_FLAGS, 3, INT_MIN, INT_MAX, V|D, "ec"},
574
{"guess_mvs", NULL, 0, FF_OPT_TYPE_CONST, FF_EC_GUESS_MVS, INT_MIN, INT_MAX, V|D, "ec"},
575
{"deblock", NULL, 0, FF_OPT_TYPE_CONST, FF_EC_DEBLOCK, INT_MIN, INT_MAX, V|D, "ec"},
576
{"bits_per_sample", NULL, OFFSET(bits_per_sample), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
577
{"pred", "prediction method", OFFSET(prediction_method), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "pred"},
578
{"left", NULL, 0, FF_OPT_TYPE_CONST, FF_PRED_LEFT, INT_MIN, INT_MAX, V|E, "pred"},
579
{"plane", NULL, 0, FF_OPT_TYPE_CONST, FF_PRED_PLANE, INT_MIN, INT_MAX, V|E, "pred"},
580
{"median", NULL, 0, FF_OPT_TYPE_CONST, FF_PRED_MEDIAN, INT_MIN, INT_MAX, V|E, "pred"},
581
{"aspect", NULL, OFFSET(sample_aspect_ratio), FF_OPT_TYPE_RATIONAL, DEFAULT, 0, 10, V|E},
582
{"debug", "print specific debug info", OFFSET(debug), FF_OPT_TYPE_FLAGS, DEFAULT, 0, INT_MAX, V|A|S|E|D, "debug"},
583
{"pict", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_PICT_INFO, INT_MIN, INT_MAX, V|D, "debug"},
584
{"rc", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_RC, INT_MIN, INT_MAX, V|E, "debug"},
585
{"bitstream", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_BITSTREAM, INT_MIN, INT_MAX, V|D, "debug"},
586
{"mb_type", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_MB_TYPE, INT_MIN, INT_MAX, V|D, "debug"},
587
{"qp", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_QP, INT_MIN, INT_MAX, V|D, "debug"},
588
{"mv", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_MV, INT_MIN, INT_MAX, V|D, "debug"},
589
{"dct_coeff", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_DCT_COEFF, INT_MIN, INT_MAX, V|D, "debug"},
590
{"skip", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_SKIP, INT_MIN, INT_MAX, V|D, "debug"},
591
{"startcode", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_STARTCODE, INT_MIN, INT_MAX, V|D, "debug"},
592
{"pts", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_PTS, INT_MIN, INT_MAX, V|D, "debug"},
593
{"er", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_ER, INT_MIN, INT_MAX, V|D, "debug"},
594
{"mmco", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_MMCO, INT_MIN, INT_MAX, V|D, "debug"},
595
{"bugs", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_BUGS, INT_MIN, INT_MAX, V|D, "debug"},
596
{"vis_qp", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_QP, INT_MIN, INT_MAX, V|D, "debug"},
597
{"vis_mb_type", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_MB_TYPE, INT_MIN, INT_MAX, V|D, "debug"},
598
{"vismv", "visualize motion vectors", OFFSET(debug_mv), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, V|D, "debug_mv"},
599
{"pf", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_MV_P_FOR, INT_MIN, INT_MAX, V|D, "debug_mv"},
600
{"bf", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_MV_B_FOR, INT_MIN, INT_MAX, V|D, "debug_mv"},
601
{"bb", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_MV_B_BACK, INT_MIN, INT_MAX, V|D, "debug_mv"},
602
{"mb_qmin", NULL, OFFSET(mb_qmin), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
603
{"mb_qmax", NULL, OFFSET(mb_qmax), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
604
{"cmp", "full pel me compare function", OFFSET(me_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
605
{"subcmp", "sub pel me compare function", OFFSET(me_sub_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
606
{"mbcmp", "macroblock compare function", OFFSET(mb_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
607
{"ildctcmp", "interlaced dct compare function", OFFSET(ildct_cmp), FF_OPT_TYPE_INT, FF_CMP_VSAD, INT_MIN, INT_MAX, V|E, "cmp_func"},
608
{"dia_size", NULL, OFFSET(dia_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
609
{"last_pred", NULL, OFFSET(last_predictor_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
610
{"preme", "pre motion estimation", OFFSET(pre_me), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
611
{"precmp", "pre motion estimation compare function", OFFSET(me_pre_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
612
{"sad", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_SAD, INT_MIN, INT_MAX, V|E, "cmp_func"},
613
{"sse", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_SSE, INT_MIN, INT_MAX, V|E, "cmp_func"},
614
{"satd", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_SATD, INT_MIN, INT_MAX, V|E, "cmp_func"},
615
{"dct", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_DCT, INT_MIN, INT_MAX, V|E, "cmp_func"},
616
{"psnr", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_PSNR, INT_MIN, INT_MAX, V|E, "cmp_func"},
617
{"bit", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_BIT, INT_MIN, INT_MAX, V|E, "cmp_func"},
618
{"rd", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_RD, INT_MIN, INT_MAX, V|E, "cmp_func"},
619
{"zero", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_ZERO, INT_MIN, INT_MAX, V|E, "cmp_func"},
620
{"vsad", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_VSAD, INT_MIN, INT_MAX, V|E, "cmp_func"},
621
{"vsse", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_VSSE, INT_MIN, INT_MAX, V|E, "cmp_func"},
622
{"nsse", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_NSSE, INT_MIN, INT_MAX, V|E, "cmp_func"},
623
#ifdef CONFIG_SNOW_ENCODER
624
{"w53", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_W53, INT_MIN, INT_MAX, V|E, "cmp_func"},
625
{"w97", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_W97, INT_MIN, INT_MAX, V|E, "cmp_func"},
626
#endif
627
{"dctmax", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_DCTMAX, INT_MIN, INT_MAX, V|E, "cmp_func"},
628
{"chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_CHROMA, INT_MIN, INT_MAX, V|E, "cmp_func"},
629
{"pre_dia_size", NULL, OFFSET(pre_dia_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
630
{"subq", "sub pel motion estimation quality", OFFSET(me_subpel_quality), FF_OPT_TYPE_INT, 8, INT_MIN, INT_MAX, V|E},
631
{"dtg_active_format", NULL, OFFSET(dtg_active_format), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
632
{"me_range", "limit motion vectors range (1023 for DivX player)", OFFSET(me_range), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
633
{"ibias", "intra quant bias", OFFSET(intra_quant_bias), FF_OPT_TYPE_INT, FF_DEFAULT_QUANT_BIAS, INT_MIN, INT_MAX, V|E},
634
{"pbias", "inter quant bias", OFFSET(inter_quant_bias), FF_OPT_TYPE_INT, FF_DEFAULT_QUANT_BIAS, INT_MIN, INT_MAX, V|E},
635
{"color_table_id", NULL, OFFSET(color_table_id), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
636
{"internal_buffer_count", NULL, OFFSET(internal_buffer_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
637
{"global_quality", NULL, OFFSET(global_quality), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
638
{"coder", NULL, OFFSET(coder_type), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "coder"},
639
{"vlc", "variable length coder / huffman coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_VLC, INT_MIN, INT_MAX, V|E, "coder"},
640
{"ac", "arithmetic coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_AC, INT_MIN, INT_MAX, V|E, "coder"},
641
{"context", "context model", OFFSET(context_model), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
642
{"slice_flags", NULL, OFFSET(slice_flags), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
643
{"xvmc_acceleration", NULL, OFFSET(xvmc_acceleration), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
644
{"mbd", NULL, OFFSET(mb_decision), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "mbd"},
645
{"simple", NULL, 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_SIMPLE, INT_MIN, INT_MAX, V|E, "mbd"},
646
{"bits", NULL, 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_BITS, INT_MIN, INT_MAX, V|E, "mbd"},
647
{"rd", NULL, 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_RD, INT_MIN, INT_MAX, V|E, "mbd"},
648
{"stream_codec_tag", NULL, OFFSET(stream_codec_tag), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
649
{"sc_threshold", "scene change threshold", OFFSET(scenechange_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
650
{"lmin", "min lagrange factor (VBR)", OFFSET(lmin), FF_OPT_TYPE_INT,  2*FF_QP2LAMBDA, 0, INT_MAX, V|E},
651
{"lmax", "max lagrange factor (VBR)", OFFSET(lmax), FF_OPT_TYPE_INT, 31*FF_QP2LAMBDA, 0, INT_MAX, V|E},
652
{"nr", "noise reduction", OFFSET(noise_reduction), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
653
{"rc_init_occupancy", NULL, OFFSET(rc_initial_buffer_occupancy), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
654
{"inter_threshold", NULL, OFFSET(inter_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
655
{"flags2", NULL, OFFSET(flags2), FF_OPT_TYPE_FLAGS, CODEC_FLAG2_FASTPSKIP, INT_MIN, INT_MAX, V|A|E|D, "flags2"},
656
{"error", NULL, OFFSET(error_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
657
{"antialias", NULL, OFFSET(antialias_algo), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D, "aa"},
658
{"auto", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_AUTO, INT_MIN, INT_MAX, V|D, "aa"},
659
{"fastint", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_FASTINT, INT_MIN, INT_MAX, V|D, "aa"},
660
{"int", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_INT, INT_MIN, INT_MAX, V|D, "aa"},
661
{"float", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_FLOAT, INT_MIN, INT_MAX, V|D, "aa"},
662
{"qns", "quantizer noise shaping", OFFSET(quantizer_noise_shaping), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
663
{"threads", NULL, OFFSET(thread_count), FF_OPT_TYPE_INT, 1, INT_MIN, INT_MAX, V|E|D},
664
{"me_threshold", "motion estimaton threshold", OFFSET(me_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
665
{"mb_threshold", "macroblock threshold", OFFSET(mb_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
666
{"dc", "intra_dc_precision", OFFSET(intra_dc_precision), FF_OPT_TYPE_INT, 0, INT_MIN, INT_MAX, V|E},
667
{"nssew", "nsse weight", OFFSET(nsse_weight), FF_OPT_TYPE_INT, 8, INT_MIN, INT_MAX, V|E},
668
{"skip_top", NULL, OFFSET(skip_top), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D},
669
{"skip_bottom", NULL, OFFSET(skip_bottom), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D},
670
{"profile", NULL, OFFSET(profile), FF_OPT_TYPE_INT, FF_PROFILE_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "profile"},
671
{"unknown", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "profile"},
672
{"level", NULL, OFFSET(level), FF_OPT_TYPE_INT, FF_LEVEL_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "level"},
673
{"unknown", NULL, 0, FF_OPT_TYPE_CONST, FF_LEVEL_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "level"},
674
{"lowres", NULL, OFFSET(lowres), FF_OPT_TYPE_INT, 0, 0, INT_MAX, V|D},
675
{"skip_threshold", "frame skip threshold", OFFSET(frame_skip_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
676
{"skip_factor", "frame skip factor", OFFSET(frame_skip_factor), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
677
{"skip_exp", "frame skip exponent", OFFSET(frame_skip_exp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
678
{"skipcmp", "frame skip compare function", OFFSET(frame_skip_cmp), FF_OPT_TYPE_INT, FF_CMP_DCTMAX, INT_MIN, INT_MAX, V|E, "cmp_func"},
679
{"border_mask", NULL, OFFSET(border_masking), FF_OPT_TYPE_FLOAT, DEFAULT, -FLT_MAX, FLT_MAX, V|E},
680
{"mblmin", "min macroblock quantiser scale (VBR)", OFFSET(mb_lmin), FF_OPT_TYPE_INT, FF_QP2LAMBDA * 2, INT_MIN, INT_MAX, V|E},
681
{"mblmax", "max macroblock quantiser scale (VBR)", OFFSET(mb_lmax), FF_OPT_TYPE_INT, FF_QP2LAMBDA * 31, INT_MIN, INT_MAX, V|E},
682
{"mepc", "motion estimation bitrate penalty compensation (1.0 = 256)", OFFSET(me_penalty_compensation), FF_OPT_TYPE_INT, 256, INT_MIN, INT_MAX, V|E},
683
{"bidir_refine", NULL, OFFSET(bidir_refine), FF_OPT_TYPE_INT, DEFAULT, 0, 4, V|E},
684
{"brd_scale", NULL, OFFSET(brd_scale), FF_OPT_TYPE_INT, DEFAULT, 0, 10, V|E},
685
{"crf", NULL, OFFSET(crf), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
686
{"cqp", NULL, OFFSET(cqp), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, V|E},
687
{"keyint_min", NULL, OFFSET(keyint_min), FF_OPT_TYPE_INT, 25, INT_MIN, INT_MAX, V|E},
688
{"refs", NULL, OFFSET(refs), FF_OPT_TYPE_INT, 1, INT_MIN, INT_MAX, V|E},
689
{"chromaoffset", NULL, OFFSET(chromaoffset), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
690
{"bframebias", NULL, OFFSET(bframebias), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
691
{"trellis", NULL, OFFSET(trellis), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|A|E},
692
{"directpred", NULL, OFFSET(directpred), FF_OPT_TYPE_INT, 2, INT_MIN, INT_MAX, V|E},
693
{"bpyramid", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_BPYRAMID, INT_MIN, INT_MAX, V|E, "flags2"},
694
{"wpred", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_WPRED, INT_MIN, INT_MAX, V|E, "flags2"},
695
{"mixed_refs", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_MIXED_REFS, INT_MIN, INT_MAX, V|E, "flags2"},
696
{"8x8dct", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_8X8DCT, INT_MIN, INT_MAX, V|E, "flags2"},
697
{"fastpskip", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_FASTPSKIP, INT_MIN, INT_MAX, V|E, "flags2"},
698
{"aud", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_AUD, INT_MIN, INT_MAX, V|E, "flags2"},
699
{"brdo", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_BRDO, INT_MIN, INT_MAX, V|E, "flags2"},
700
{"complexityblur", NULL, OFFSET(complexityblur), FF_OPT_TYPE_FLOAT, 20.0, FLT_MIN, FLT_MAX, V|E},
701
{"deblockalpha", NULL, OFFSET(deblockalpha), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
702
{"deblockbeta", NULL, OFFSET(deblockbeta), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
703
{"partitions", NULL, OFFSET(partitions), FF_OPT_TYPE_FLAGS, DEFAULT, INT_MIN, INT_MAX, V|E, "partitions"},
704
{"parti4x4", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_I4X4, INT_MIN, INT_MAX, V|E, "partitions"},
705
{"parti8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_I8X8, INT_MIN, INT_MAX, V|E, "partitions"},
706
{"partp4x4", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_P4X4, INT_MIN, INT_MAX, V|E, "partitions"},
707
{"partp8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_P8X8, INT_MIN, INT_MAX, V|E, "partitions"},
708
{"partb8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_B8X8, INT_MIN, INT_MAX, V|E, "partitions"},
709
{"sc_factor", NULL, OFFSET(scenechange_factor), FF_OPT_TYPE_INT, 6, 0, INT_MAX, V|E},
710
{"mv0_threshold", NULL, OFFSET(mv0_threshold), FF_OPT_TYPE_INT, 256, 0, INT_MAX, V|E},
711
{"ivlc", "intra vlc table", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_INTRA_VLC, INT_MIN, INT_MAX, V|E, "flags2"},
712
{"b_sensitivity", NULL, OFFSET(b_sensitivity), FF_OPT_TYPE_INT, 40, 1, INT_MAX, V|E},
713
{"compression_level", NULL, OFFSET(compression_level), FF_OPT_TYPE_INT, FF_COMPRESSION_DEFAULT, INT_MIN, INT_MAX, V|A|E},
714
{"use_lpc", NULL, OFFSET(use_lpc), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
715
{"lpc_coeff_precision", NULL, OFFSET(lpc_coeff_precision), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, A|E},
716
{"min_prediction_order", NULL, OFFSET(min_prediction_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
717
{"max_prediction_order", NULL, OFFSET(max_prediction_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
718
{"prediction_order_method", NULL, OFFSET(prediction_order_method), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
719
{"min_partition_order", NULL, OFFSET(min_partition_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
720
{"max_partition_order", NULL, OFFSET(max_partition_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
721
{NULL},
722
};
723

    
724
#undef A
725
#undef V
726
#undef S
727
#undef E
728
#undef D
729
#undef DEFAULT
730

    
731
static AVClass av_codec_context_class = { "AVCodecContext", context_to_name, options };
732

    
733
void avcodec_get_context_defaults(AVCodecContext *s){
734
    memset(s, 0, sizeof(AVCodecContext));
735

    
736
    s->av_class= &av_codec_context_class;
737

    
738
    av_opt_set_defaults(s);
739

    
740
    s->rc_eq= "tex^qComp";
741
    s->time_base= (AVRational){0,1};
742
    s->get_buffer= avcodec_default_get_buffer;
743
    s->release_buffer= avcodec_default_release_buffer;
744
    s->get_format= avcodec_default_get_format;
745
    s->execute= avcodec_default_execute;
746
    s->lmin= FF_QP2LAMBDA * s->qmin;
747
    s->lmax= FF_QP2LAMBDA * s->qmax;
748
    s->sample_aspect_ratio= (AVRational){0,1};
749
    s->pix_fmt= PIX_FMT_NONE;
750
    s->sample_fmt= SAMPLE_FMT_S16; // FIXME: set to NONE
751

    
752
    s->palctrl = NULL;
753
    s->reget_buffer= avcodec_default_reget_buffer;
754
}
755

    
756
/**
757
 * allocates a AVCodecContext and set it to defaults.
758
 * this can be deallocated by simply calling free()
759
 */
760
AVCodecContext *avcodec_alloc_context(void){
761
    AVCodecContext *avctx= av_malloc(sizeof(AVCodecContext));
762

    
763
    if(avctx==NULL) return NULL;
764

    
765
    avcodec_get_context_defaults(avctx);
766

    
767
    return avctx;
768
}
769

    
770
void avcodec_get_frame_defaults(AVFrame *pic){
771
    memset(pic, 0, sizeof(AVFrame));
772

    
773
    pic->pts= AV_NOPTS_VALUE;
774
    pic->key_frame= 1;
775
}
776

    
777
/**
778
 * allocates a AVPFrame and set it to defaults.
779
 * this can be deallocated by simply calling free()
780
 */
781
AVFrame *avcodec_alloc_frame(void){
782
    AVFrame *pic= av_malloc(sizeof(AVFrame));
783

    
784
    if(pic==NULL) return NULL;
785

    
786
    avcodec_get_frame_defaults(pic);
787

    
788
    return pic;
789
}
790

    
791
int avcodec_open(AVCodecContext *avctx, AVCodec *codec)
792
{
793
    int ret= -1;
794

    
795
    entangled_thread_counter++;
796
    if(entangled_thread_counter != 1){
797
        av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
798
        goto end;
799
    }
800

    
801
    if(avctx->codec)
802
        goto end;
803

    
804
    if (codec->priv_data_size > 0) {
805
        avctx->priv_data = av_mallocz(codec->priv_data_size);
806
        if (!avctx->priv_data)
807
            goto end;
808
    } else {
809
        avctx->priv_data = NULL;
810
    }
811

    
812
    if(avctx->coded_width && avctx->coded_height)
813
        avcodec_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
814
    else if(avctx->width && avctx->height)
815
        avcodec_set_dimensions(avctx, avctx->width, avctx->height);
816

    
817
    if((avctx->coded_width||avctx->coded_height) && avcodec_check_dimensions(avctx,avctx->coded_width,avctx->coded_height)){
818
        av_freep(&avctx->priv_data);
819
        goto end;
820
    }
821

    
822
    avctx->codec = codec;
823
    avctx->codec_id = codec->id;
824
    avctx->frame_number = 0;
825
    ret = avctx->codec->init(avctx);
826
    if (ret < 0) {
827
        av_freep(&avctx->priv_data);
828
        avctx->codec= NULL;
829
        goto end;
830
    }
831
    ret=0;
832
end:
833
    entangled_thread_counter--;
834
    return ret;
835
}
836

    
837
int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
838
                         const short *samples)
839
{
840
    if(buf_size < FF_MIN_BUFFER_SIZE && 0){
841
        av_log(avctx, AV_LOG_ERROR, "buffer smaller then minimum size\n");
842
        return -1;
843
    }
844
    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || samples){
845
        int ret = avctx->codec->encode(avctx, buf, buf_size, (void *)samples);
846
        avctx->frame_number++;
847
        return ret;
848
    }else
849
        return 0;
850
}
851

    
852
int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
853
                         const AVFrame *pict)
854
{
855
    if(buf_size < FF_MIN_BUFFER_SIZE){
856
        av_log(avctx, AV_LOG_ERROR, "buffer smaller then minimum size\n");
857
        return -1;
858
    }
859
    if(avcodec_check_dimensions(avctx,avctx->width,avctx->height))
860
        return -1;
861
    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || pict){
862
        int ret = avctx->codec->encode(avctx, buf, buf_size, (void *)pict);
863
        avctx->frame_number++;
864
        emms_c(); //needed to avoid an emms_c() call before every return;
865

    
866
        return ret;
867
    }else
868
        return 0;
869
}
870

    
871
int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
872
                            const AVSubtitle *sub)
873
{
874
    int ret;
875
    ret = avctx->codec->encode(avctx, buf, buf_size, (void *)sub);
876
    avctx->frame_number++;
877
    return ret;
878
}
879

    
880
/**
881
 * decode a frame.
882
 * @param buf bitstream buffer, must be FF_INPUT_BUFFER_PADDING_SIZE larger then the actual read bytes
883
 * because some optimized bitstream readers read 32 or 64 bit at once and could read over the end
884
 * @param buf_size the size of the buffer in bytes
885
 * @param got_picture_ptr zero if no frame could be decompressed, Otherwise, it is non zero
886
 * @return -1 if error, otherwise return the number of
887
 * bytes used.
888
 */
889
int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
890
                         int *got_picture_ptr,
891
                         uint8_t *buf, int buf_size)
892
{
893
    int ret;
894

    
895
    *got_picture_ptr= 0;
896
    if((avctx->coded_width||avctx->coded_height) && avcodec_check_dimensions(avctx,avctx->coded_width,avctx->coded_height))
897
        return -1;
898
    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || buf_size){
899
        ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
900
                                buf, buf_size);
901

    
902
        emms_c(); //needed to avoid an emms_c() call before every return;
903

    
904
        if (*got_picture_ptr)
905
            avctx->frame_number++;
906
    }else
907
        ret= 0;
908

    
909
    return ret;
910
}
911

    
912
/* decode an audio frame. return -1 if error, otherwise return the
913
   *number of bytes used. If no frame could be decompressed,
914
   *frame_size_ptr is zero. Otherwise, it is the decompressed frame
915
   *size in BYTES. */
916
int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples,
917
                         int *frame_size_ptr,
918
                         uint8_t *buf, int buf_size)
919
{
920
    int ret;
921

    
922
    *frame_size_ptr= 0;
923
    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || buf_size){
924
        ret = avctx->codec->decode(avctx, samples, frame_size_ptr,
925
                                buf, buf_size);
926
        avctx->frame_number++;
927
    }else
928
        ret= 0;
929
    return ret;
930
}
931

    
932
/* decode a subtitle message. return -1 if error, otherwise return the
933
   *number of bytes used. If no subtitle could be decompressed,
934
   *got_sub_ptr is zero. Otherwise, the subtitle is stored in *sub. */
935
int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
936
                            int *got_sub_ptr,
937
                            const uint8_t *buf, int buf_size)
938
{
939
    int ret;
940

    
941
    *got_sub_ptr = 0;
942
    ret = avctx->codec->decode(avctx, sub, got_sub_ptr,
943
                               (uint8_t *)buf, buf_size);
944
    if (*got_sub_ptr)
945
        avctx->frame_number++;
946
    return ret;
947
}
948

    
949
int avcodec_close(AVCodecContext *avctx)
950
{
951
    entangled_thread_counter++;
952
    if(entangled_thread_counter != 1){
953
        av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
954
        entangled_thread_counter--;
955
        return -1;
956
    }
957

    
958
    if (avctx->codec->close)
959
        avctx->codec->close(avctx);
960
    avcodec_default_free_buffers(avctx);
961
    av_freep(&avctx->priv_data);
962
    avctx->codec = NULL;
963
    entangled_thread_counter--;
964
    return 0;
965
}
966

    
967
AVCodec *avcodec_find_encoder(enum CodecID id)
968
{
969
    AVCodec *p;
970
    p = first_avcodec;
971
    while (p) {
972
        if (p->encode != NULL && p->id == id)
973
            return p;
974
        p = p->next;
975
    }
976
    return NULL;
977
}
978

    
979
AVCodec *avcodec_find_encoder_by_name(const char *name)
980
{
981
    AVCodec *p;
982
    p = first_avcodec;
983
    while (p) {
984
        if (p->encode != NULL && strcmp(name,p->name) == 0)
985
            return p;
986
        p = p->next;
987
    }
988
    return NULL;
989
}
990

    
991
AVCodec *avcodec_find_decoder(enum CodecID id)
992
{
993
    AVCodec *p;
994
    p = first_avcodec;
995
    while (p) {
996
        if (p->decode != NULL && p->id == id)
997
            return p;
998
        p = p->next;
999
    }
1000
    return NULL;
1001
}
1002

    
1003
AVCodec *avcodec_find_decoder_by_name(const char *name)
1004
{
1005
    AVCodec *p;
1006
    p = first_avcodec;
1007
    while (p) {
1008
        if (p->decode != NULL && strcmp(name,p->name) == 0)
1009
            return p;
1010
        p = p->next;
1011
    }
1012
    return NULL;
1013
}
1014

    
1015
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1016
{
1017
    const char *codec_name;
1018
    AVCodec *p;
1019
    char buf1[32];
1020
    char channels_str[100];
1021
    int bitrate;
1022

    
1023
    if (encode)
1024
        p = avcodec_find_encoder(enc->codec_id);
1025
    else
1026
        p = avcodec_find_decoder(enc->codec_id);
1027

    
1028
    if (p) {
1029
        codec_name = p->name;
1030
        if (!encode && enc->codec_id == CODEC_ID_MP3) {
1031
            if (enc->sub_id == 2)
1032
                codec_name = "mp2";
1033
            else if (enc->sub_id == 1)
1034
                codec_name = "mp1";
1035
        }
1036
    } else if (enc->codec_id == CODEC_ID_MPEG2TS) {
1037
        /* fake mpeg2 transport stream codec (currently not
1038
           registered) */
1039
        codec_name = "mpeg2ts";
1040
    } else if (enc->codec_name[0] != '\0') {
1041
        codec_name = enc->codec_name;
1042
    } else {
1043
        /* output avi tags */
1044
        if(   isprint(enc->codec_tag&0xFF) && isprint((enc->codec_tag>>8)&0xFF)
1045
           && isprint((enc->codec_tag>>16)&0xFF) && isprint((enc->codec_tag>>24)&0xFF)){
1046
            snprintf(buf1, sizeof(buf1), "%c%c%c%c / 0x%04X",
1047
                     enc->codec_tag & 0xff,
1048
                     (enc->codec_tag >> 8) & 0xff,
1049
                     (enc->codec_tag >> 16) & 0xff,
1050
                     (enc->codec_tag >> 24) & 0xff,
1051
                      enc->codec_tag);
1052
        } else {
1053
            snprintf(buf1, sizeof(buf1), "0x%04x", enc->codec_tag);
1054
        }
1055
        codec_name = buf1;
1056
    }
1057

    
1058
    switch(enc->codec_type) {
1059
    case CODEC_TYPE_VIDEO:
1060
        snprintf(buf, buf_size,
1061
                 "Video: %s%s",
1062
                 codec_name, enc->mb_decision ? " (hq)" : "");
1063
        if (enc->pix_fmt != PIX_FMT_NONE) {
1064
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1065
                     ", %s",
1066
                     avcodec_get_pix_fmt_name(enc->pix_fmt));
1067
        }
1068
        if (enc->width) {
1069
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1070
                     ", %dx%d",
1071
                     enc->width, enc->height);
1072
            if(av_log_get_level() >= AV_LOG_DEBUG){
1073
                int g= ff_gcd(enc->time_base.num, enc->time_base.den);
1074
                snprintf(buf + strlen(buf), buf_size - strlen(buf),
1075
                     ", %d/%d",
1076
                     enc->time_base.num/g, enc->time_base.den/g);
1077
            }
1078
        }
1079
        if (encode) {
1080
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1081
                     ", q=%d-%d", enc->qmin, enc->qmax);
1082
        }
1083
        bitrate = enc->bit_rate;
1084
        break;
1085
    case CODEC_TYPE_AUDIO:
1086
        snprintf(buf, buf_size,
1087
                 "Audio: %s",
1088
                 codec_name);
1089
        switch (enc->channels) {
1090
            case 1:
1091
                strcpy(channels_str, "mono");
1092
                break;
1093
            case 2:
1094
                strcpy(channels_str, "stereo");
1095
                break;
1096
            case 6:
1097
                strcpy(channels_str, "5:1");
1098
                break;
1099
            default:
1100
                snprintf(channels_str, sizeof(channels_str), "%d channels", enc->channels);
1101
                break;
1102
        }
1103
        if (enc->sample_rate) {
1104
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1105
                     ", %d Hz, %s",
1106
                     enc->sample_rate,
1107
                     channels_str);
1108
        }
1109

    
1110
        /* for PCM codecs, compute bitrate directly */
1111
        switch(enc->codec_id) {
1112
        case CODEC_ID_PCM_S32LE:
1113
        case CODEC_ID_PCM_S32BE:
1114
        case CODEC_ID_PCM_U32LE:
1115
        case CODEC_ID_PCM_U32BE:
1116
            bitrate = enc->sample_rate * enc->channels * 32;
1117
            break;
1118
        case CODEC_ID_PCM_S24LE:
1119
        case CODEC_ID_PCM_S24BE:
1120
        case CODEC_ID_PCM_U24LE:
1121
        case CODEC_ID_PCM_U24BE:
1122
        case CODEC_ID_PCM_S24DAUD:
1123
            bitrate = enc->sample_rate * enc->channels * 24;
1124
            break;
1125
        case CODEC_ID_PCM_S16LE:
1126
        case CODEC_ID_PCM_S16BE:
1127
        case CODEC_ID_PCM_U16LE:
1128
        case CODEC_ID_PCM_U16BE:
1129
            bitrate = enc->sample_rate * enc->channels * 16;
1130
            break;
1131
        case CODEC_ID_PCM_S8:
1132
        case CODEC_ID_PCM_U8:
1133
        case CODEC_ID_PCM_ALAW:
1134
        case CODEC_ID_PCM_MULAW:
1135
            bitrate = enc->sample_rate * enc->channels * 8;
1136
            break;
1137
        default:
1138
            bitrate = enc->bit_rate;
1139
            break;
1140
        }
1141
        break;
1142
    case CODEC_TYPE_DATA:
1143
        snprintf(buf, buf_size, "Data: %s", codec_name);
1144
        bitrate = enc->bit_rate;
1145
        break;
1146
    case CODEC_TYPE_SUBTITLE:
1147
        snprintf(buf, buf_size, "Subtitle: %s", codec_name);
1148
        bitrate = enc->bit_rate;
1149
        break;
1150
    default:
1151
        snprintf(buf, buf_size, "Invalid Codec type %d", enc->codec_type);
1152
        return;
1153
    }
1154
    if (encode) {
1155
        if (enc->flags & CODEC_FLAG_PASS1)
1156
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1157
                     ", pass 1");
1158
        if (enc->flags & CODEC_FLAG_PASS2)
1159
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1160
                     ", pass 2");
1161
    }
1162
    if (bitrate != 0) {
1163
        snprintf(buf + strlen(buf), buf_size - strlen(buf),
1164
                 ", %d kb/s", bitrate / 1000);
1165
    }
1166
}
1167

    
1168
unsigned avcodec_version( void )
1169
{
1170
  return LIBAVCODEC_VERSION_INT;
1171
}
1172

    
1173
unsigned avcodec_build( void )
1174
{
1175
  return LIBAVCODEC_BUILD;
1176
}
1177

    
1178
static void init_crcs(void){
1179
    av_crc04C11DB7= av_mallocz_static(sizeof(AVCRC) * 257);
1180
    av_crc8005    = av_mallocz_static(sizeof(AVCRC) * 257);
1181
    av_crc07      = av_mallocz_static(sizeof(AVCRC) * 257);
1182
    av_crc_init(av_crc04C11DB7, 0, 32, 0x04c11db7, sizeof(AVCRC)*257);
1183
    av_crc_init(av_crc8005    , 0, 16, 0x8005    , sizeof(AVCRC)*257);
1184
    av_crc_init(av_crc07      , 0,  8, 0x07      , sizeof(AVCRC)*257);
1185
}
1186

    
1187
/* must be called before any other functions */
1188
void avcodec_init(void)
1189
{
1190
    static int inited = 0;
1191

    
1192
    if (inited != 0)
1193
        return;
1194
    inited = 1;
1195

    
1196
    dsputil_static_init();
1197
    init_crcs();
1198
}
1199

    
1200
/**
1201
 * Flush buffers, should be called when seeking or when swicthing to a different stream.
1202
 */
1203
void avcodec_flush_buffers(AVCodecContext *avctx)
1204
{
1205
    if(avctx->codec->flush)
1206
        avctx->codec->flush(avctx);
1207
}
1208

    
1209
void avcodec_default_free_buffers(AVCodecContext *s){
1210
    int i, j;
1211

    
1212
    if(s->internal_buffer==NULL) return;
1213

    
1214
    for(i=0; i<INTERNAL_BUFFER_SIZE; i++){
1215
        InternalBuffer *buf= &((InternalBuffer*)s->internal_buffer)[i];
1216
        for(j=0; j<4; j++){
1217
            av_freep(&buf->base[j]);
1218
            buf->data[j]= NULL;
1219
        }
1220
    }
1221
    av_freep(&s->internal_buffer);
1222

    
1223
    s->internal_buffer_count=0;
1224
}
1225

    
1226
char av_get_pict_type_char(int pict_type){
1227
    switch(pict_type){
1228
    case I_TYPE: return 'I';
1229
    case P_TYPE: return 'P';
1230
    case B_TYPE: return 'B';
1231
    case S_TYPE: return 'S';
1232
    case SI_TYPE:return 'i';
1233
    case SP_TYPE:return 'p';
1234
    default:     return '?';
1235
    }
1236
}
1237

    
1238
int av_get_bits_per_sample(enum CodecID codec_id){
1239
    switch(codec_id){
1240
    case CODEC_ID_ADPCM_SBPRO_2:
1241
        return 2;
1242
    case CODEC_ID_ADPCM_SBPRO_3:
1243
        return 3;
1244
    case CODEC_ID_ADPCM_SBPRO_4:
1245
    case CODEC_ID_ADPCM_CT:
1246
        return 4;
1247
    case CODEC_ID_PCM_ALAW:
1248
    case CODEC_ID_PCM_MULAW:
1249
    case CODEC_ID_PCM_S8:
1250
    case CODEC_ID_PCM_U8:
1251
        return 8;
1252
    case CODEC_ID_PCM_S16BE:
1253
    case CODEC_ID_PCM_S16LE:
1254
    case CODEC_ID_PCM_U16BE:
1255
    case CODEC_ID_PCM_U16LE:
1256
        return 16;
1257
    case CODEC_ID_PCM_S24DAUD:
1258
    case CODEC_ID_PCM_S24BE:
1259
    case CODEC_ID_PCM_S24LE:
1260
    case CODEC_ID_PCM_U24BE:
1261
    case CODEC_ID_PCM_U24LE:
1262
        return 24;
1263
    case CODEC_ID_PCM_S32BE:
1264
    case CODEC_ID_PCM_S32LE:
1265
    case CODEC_ID_PCM_U32BE:
1266
    case CODEC_ID_PCM_U32LE:
1267
        return 32;
1268
    default:
1269
        return 0;
1270
    }
1271
}
1272

    
1273
#if !defined(HAVE_THREADS)
1274
int avcodec_thread_init(AVCodecContext *s, int thread_count){
1275
    return -1;
1276
}
1277
#endif
1278

    
1279
unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1280
{
1281
    unsigned int n = 0;
1282

    
1283
    while(v >= 0xff) {
1284
        *s++ = 0xff;
1285
        v -= 0xff;
1286
        n++;
1287
    }
1288
    *s = v;
1289
    n++;
1290
    return n;
1291
}
1292

    
1293
/* Wrapper to work around the lack of mkstemp() on mingw/cygin.
1294
 * Also, tries to create file in /tmp first, if possible.
1295
 * *prefix can be a character constant; *filename will be allocated internally.
1296
 * Returns file descriptor of opened file (or -1 on error)
1297
 * and opened file name in **filename. */
1298
int av_tempfile(char *prefix, char **filename) {
1299
    int fd=-1;
1300
#ifdef __MINGW32__
1301
    *filename = tempnam(".", prefix);
1302
#else
1303
    size_t len = strlen(prefix) + 12; /* room for "/tmp/" and "XXXXXX\0" */
1304
    *filename = av_malloc(len);
1305
#endif
1306
    /* -----common section-----*/
1307
    if (*filename == NULL) {
1308
        av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot allocate file name\n");
1309
        return -1;
1310
    }
1311
#ifdef __MINGW32__
1312
    fd = open(*filename, _O_RDWR | _O_BINARY | _O_CREAT, 0444);
1313
#else
1314
    snprintf(*filename, len, "/tmp/%sXXXXXX", prefix);
1315
    fd = mkstemp(*filename);
1316
    if (fd < 0) {
1317
        snprintf(*filename, len, "./%sXXXXXX", prefix);
1318
        fd = mkstemp(*filename);
1319
    }
1320
#endif
1321
    /* -----common section-----*/
1322
    if (fd < 0) {
1323
        av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot open temporary file %s\n", *filename);
1324
        return -1;
1325
    }
1326
    return fd; /* success */
1327
}