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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
 *
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 * This file is part of FFmpeg.
7
 *
8
 * FFmpeg is free software; you can redistribute it and/or
9
 * modify it under the terms of the GNU Lesser General Public
10
 * License as published by the Free Software Foundation; either
11
 * version 2.1 of the License, or (at your option) any later version.
12
 *
13
 * FFmpeg is distributed in the hope that it will be useful,
14
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16
 * Lesser General Public License for more details.
17
 *
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 * You should have received a copy of the GNU Lesser General Public
19
 * License along with FFmpeg; if not, write to the Free Software
20
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21
 */
22

    
23
/**
24
 * @file utils.c
25
 * utils.
26
 */
27

    
28
/* needed for mkstemp() */
29
#define _XOPEN_SOURCE 600
30

    
31
#include "libavutil/integer.h"
32
#include "libavutil/crc.h"
33
#include "avcodec.h"
34
#include "dsputil.h"
35
#include "opt.h"
36
#include "imgconvert.h"
37
#include "audioconvert.h"
38
#include <stdlib.h>
39
#include <stdarg.h>
40
#include <limits.h>
41
#include <float.h>
42
#if !defined(HAVE_MKSTEMP)
43
#include <fcntl.h>
44
#endif
45

    
46
const uint8_t ff_reverse[256]={
47
0x00,0x80,0x40,0xC0,0x20,0xA0,0x60,0xE0,0x10,0x90,0x50,0xD0,0x30,0xB0,0x70,0xF0,
48
0x08,0x88,0x48,0xC8,0x28,0xA8,0x68,0xE8,0x18,0x98,0x58,0xD8,0x38,0xB8,0x78,0xF8,
49
0x04,0x84,0x44,0xC4,0x24,0xA4,0x64,0xE4,0x14,0x94,0x54,0xD4,0x34,0xB4,0x74,0xF4,
50
0x0C,0x8C,0x4C,0xCC,0x2C,0xAC,0x6C,0xEC,0x1C,0x9C,0x5C,0xDC,0x3C,0xBC,0x7C,0xFC,
51
0x02,0x82,0x42,0xC2,0x22,0xA2,0x62,0xE2,0x12,0x92,0x52,0xD2,0x32,0xB2,0x72,0xF2,
52
0x0A,0x8A,0x4A,0xCA,0x2A,0xAA,0x6A,0xEA,0x1A,0x9A,0x5A,0xDA,0x3A,0xBA,0x7A,0xFA,
53
0x06,0x86,0x46,0xC6,0x26,0xA6,0x66,0xE6,0x16,0x96,0x56,0xD6,0x36,0xB6,0x76,0xF6,
54
0x0E,0x8E,0x4E,0xCE,0x2E,0xAE,0x6E,0xEE,0x1E,0x9E,0x5E,0xDE,0x3E,0xBE,0x7E,0xFE,
55
0x01,0x81,0x41,0xC1,0x21,0xA1,0x61,0xE1,0x11,0x91,0x51,0xD1,0x31,0xB1,0x71,0xF1,
56
0x09,0x89,0x49,0xC9,0x29,0xA9,0x69,0xE9,0x19,0x99,0x59,0xD9,0x39,0xB9,0x79,0xF9,
57
0x05,0x85,0x45,0xC5,0x25,0xA5,0x65,0xE5,0x15,0x95,0x55,0xD5,0x35,0xB5,0x75,0xF5,
58
0x0D,0x8D,0x4D,0xCD,0x2D,0xAD,0x6D,0xED,0x1D,0x9D,0x5D,0xDD,0x3D,0xBD,0x7D,0xFD,
59
0x03,0x83,0x43,0xC3,0x23,0xA3,0x63,0xE3,0x13,0x93,0x53,0xD3,0x33,0xB3,0x73,0xF3,
60
0x0B,0x8B,0x4B,0xCB,0x2B,0xAB,0x6B,0xEB,0x1B,0x9B,0x5B,0xDB,0x3B,0xBB,0x7B,0xFB,
61
0x07,0x87,0x47,0xC7,0x27,0xA7,0x67,0xE7,0x17,0x97,0x57,0xD7,0x37,0xB7,0x77,0xF7,
62
0x0F,0x8F,0x4F,0xCF,0x2F,0xAF,0x6F,0xEF,0x1F,0x9F,0x5F,0xDF,0x3F,0xBF,0x7F,0xFF,
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};
64

    
65
static int volatile entangled_thread_counter=0;
66

    
67
void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size)
68
{
69
    if(min_size < *size)
70
        return ptr;
71

    
72
    *size= FFMAX(17*min_size/16 + 32, min_size);
73

    
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    ptr= av_realloc(ptr, *size);
75
    if(!ptr) //we could set this to the unmodified min_size but this is safer if the user lost the ptr and uses NULL now
76
        *size= 0;
77

    
78
    return ptr;
79
}
80

    
81
/* encoder management */
82
static AVCodec *first_avcodec = NULL;
83

    
84
AVCodec *av_codec_next(AVCodec *c){
85
    if(c) return c->next;
86
    else  return first_avcodec;
87
}
88

    
89
void register_avcodec(AVCodec *format)
90
{
91
    AVCodec **p;
92
    p = &first_avcodec;
93
    while (*p != NULL) p = &(*p)->next;
94
    *p = format;
95
    format->next = NULL;
96
}
97

    
98
void avcodec_set_dimensions(AVCodecContext *s, int width, int height){
99
    s->coded_width = width;
100
    s->coded_height= height;
101
    s->width = -((-width )>>s->lowres);
102
    s->height= -((-height)>>s->lowres);
103
}
104

    
105
typedef struct InternalBuffer{
106
    int last_pic_num;
107
    uint8_t *base[4];
108
    uint8_t *data[4];
109
    int linesize[4];
110
    int width, height;
111
    enum PixelFormat pix_fmt;
112
}InternalBuffer;
113

    
114
#define INTERNAL_BUFFER_SIZE 32
115

    
116
#define ALIGN(x, a) (((x)+(a)-1)&~((a)-1))
117

    
118
void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height){
119
    int w_align= 1;
120
    int h_align= 1;
121

    
122
    switch(s->pix_fmt){
123
    case PIX_FMT_YUV420P:
124
    case PIX_FMT_YUYV422:
125
    case PIX_FMT_UYVY422:
126
    case PIX_FMT_YUV422P:
127
    case PIX_FMT_YUV444P:
128
    case PIX_FMT_GRAY8:
129
    case PIX_FMT_GRAY16BE:
130
    case PIX_FMT_GRAY16LE:
131
    case PIX_FMT_YUVJ420P:
132
    case PIX_FMT_YUVJ422P:
133
    case PIX_FMT_YUVJ444P:
134
    case PIX_FMT_YUVA420P:
135
        w_align= 16; //FIXME check for non mpeg style codecs and use less alignment
136
        h_align= 16;
137
        break;
138
    case PIX_FMT_YUV411P:
139
    case PIX_FMT_UYYVYY411:
140
        w_align=32;
141
        h_align=8;
142
        break;
143
    case PIX_FMT_YUV410P:
144
        if(s->codec_id == CODEC_ID_SVQ1){
145
            w_align=64;
146
            h_align=64;
147
        }
148
    case PIX_FMT_RGB555:
149
        if(s->codec_id == CODEC_ID_RPZA){
150
            w_align=4;
151
            h_align=4;
152
        }
153
    case PIX_FMT_PAL8:
154
        if(s->codec_id == CODEC_ID_SMC){
155
            w_align=4;
156
            h_align=4;
157
        }
158
        break;
159
    case PIX_FMT_BGR24:
160
        if((s->codec_id == CODEC_ID_MSZH) || (s->codec_id == CODEC_ID_ZLIB)){
161
            w_align=4;
162
            h_align=4;
163
        }
164
        break;
165
    default:
166
        w_align= 1;
167
        h_align= 1;
168
        break;
169
    }
170

    
171
    *width = ALIGN(*width , w_align);
172
    *height= ALIGN(*height, h_align);
173
    if(s->codec_id == CODEC_ID_H264)
174
        *height+=2; // some of the optimized chroma MC reads one line too much
175
}
176

    
177
int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h){
178
    if((int)w>0 && (int)h>0 && (w+128)*(uint64_t)(h+128) < INT_MAX/4)
179
        return 0;
180

    
181
    av_log(av_log_ctx, AV_LOG_ERROR, "picture size invalid (%ux%u)\n", w, h);
182
    return -1;
183
}
184

    
185
int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic){
186
    int i;
187
    int w= s->width;
188
    int h= s->height;
189
    InternalBuffer *buf;
190
    int *picture_number;
191

    
192
    if(pic->data[0]!=NULL) {
193
        av_log(s, AV_LOG_ERROR, "pic->data[0]!=NULL in avcodec_default_get_buffer\n");
194
        return -1;
195
    }
196
    if(s->internal_buffer_count >= INTERNAL_BUFFER_SIZE) {
197
        av_log(s, AV_LOG_ERROR, "internal_buffer_count overflow (missing release_buffer?)\n");
198
        return -1;
199
    }
200

    
201
    if(avcodec_check_dimensions(s,w,h))
202
        return -1;
203

    
204
    if(s->internal_buffer==NULL){
205
        s->internal_buffer= av_mallocz((INTERNAL_BUFFER_SIZE+1)*sizeof(InternalBuffer));
206
    }
207
#if 0
208
    s->internal_buffer= av_fast_realloc(
209
        s->internal_buffer,
210
        &s->internal_buffer_size,
211
        sizeof(InternalBuffer)*FFMAX(99,  s->internal_buffer_count+1)/*FIXME*/
212
        );
213
#endif
214

    
215
    buf= &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count];
216
    picture_number= &(((InternalBuffer*)s->internal_buffer)[INTERNAL_BUFFER_SIZE]).last_pic_num; //FIXME ugly hack
217
    (*picture_number)++;
218

    
219
    if(buf->base[0] && (buf->width != w || buf->height != h || buf->pix_fmt != s->pix_fmt)){
220
        for(i=0; i<4; i++){
221
            av_freep(&buf->base[i]);
222
            buf->data[i]= NULL;
223
        }
224
    }
225

    
226
    if(buf->base[0]){
227
        pic->age= *picture_number - buf->last_pic_num;
228
        buf->last_pic_num= *picture_number;
229
    }else{
230
        int h_chroma_shift, v_chroma_shift;
231
        int size[4] = {0};
232
        int tmpsize;
233
        AVPicture picture;
234
        int stride_align[4];
235

    
236
        avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
237

    
238
        avcodec_align_dimensions(s, &w, &h);
239

    
240
        if(!(s->flags&CODEC_FLAG_EMU_EDGE)){
241
            w+= EDGE_WIDTH*2;
242
            h+= EDGE_WIDTH*2;
243
        }
244

    
245
        ff_fill_linesize(&picture, s->pix_fmt, w);
246

    
247
        for (i=0; i<4; i++){
248
//STRIDE_ALIGN is 8 for SSE* but this does not work for SVQ1 chroma planes
249
//we could change STRIDE_ALIGN to 16 for x86/sse but it would increase the
250
//picture size unneccessarily in some cases. The solution here is not
251
//pretty and better ideas are welcome!
252
#ifdef HAVE_MMX
253
            if(s->codec_id == CODEC_ID_SVQ1)
254
                stride_align[i]= 16;
255
            else
256
#endif
257
            stride_align[i] = STRIDE_ALIGN;
258
            picture.linesize[i] = ALIGN(picture.linesize[i], stride_align[i]);
259
        }
260

    
261
        tmpsize = ff_fill_pointer(&picture, NULL, s->pix_fmt, h);
262

    
263
        for (i=0; i<3 && picture.data[i+1]; i++)
264
            size[i] = picture.data[i+1] - picture.data[i];
265
        size[i] = tmpsize - (picture.data[i] - picture.data[0]);
266

    
267
        buf->last_pic_num= -256*256*256*64;
268
        memset(buf->base, 0, sizeof(buf->base));
269
        memset(buf->data, 0, sizeof(buf->data));
270

    
271
        for(i=0; i<4 && size[i]; i++){
272
            const int h_shift= i==0 ? 0 : h_chroma_shift;
273
            const int v_shift= i==0 ? 0 : v_chroma_shift;
274

    
275
            buf->linesize[i]= picture.linesize[i];
276

    
277
            buf->base[i]= av_malloc(size[i]+16); //FIXME 16
278
            if(buf->base[i]==NULL) return -1;
279
            memset(buf->base[i], 128, size[i]);
280

    
281
            // no edge if EDEG EMU or not planar YUV, we check for PAL8 redundantly to protect against a exploitable bug regression ...
282
            if((s->flags&CODEC_FLAG_EMU_EDGE) || (s->pix_fmt == PIX_FMT_PAL8) || !size[2])
283
                buf->data[i] = buf->base[i];
284
            else
285
                buf->data[i] = buf->base[i] + ALIGN((buf->linesize[i]*EDGE_WIDTH>>v_shift) + (EDGE_WIDTH>>h_shift), stride_align[i]);
286
        }
287
        buf->width  = s->width;
288
        buf->height = s->height;
289
        buf->pix_fmt= s->pix_fmt;
290
        pic->age= 256*256*256*64;
291
    }
292
    pic->type= FF_BUFFER_TYPE_INTERNAL;
293

    
294
    for(i=0; i<4; i++){
295
        pic->base[i]= buf->base[i];
296
        pic->data[i]= buf->data[i];
297
        pic->linesize[i]= buf->linesize[i];
298
    }
299
    s->internal_buffer_count++;
300

    
301
    pic->reordered_opaque= s->reordered_opaque;
302

    
303
    if(s->debug&FF_DEBUG_BUFFERS)
304
        av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p, %d buffers used\n", pic, s->internal_buffer_count);
305

    
306
    return 0;
307
}
308

    
309
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic){
310
    int i;
311
    InternalBuffer *buf, *last;
312

    
313
    assert(pic->type==FF_BUFFER_TYPE_INTERNAL);
314
    assert(s->internal_buffer_count);
315

    
316
    buf = NULL; /* avoids warning */
317
    for(i=0; i<s->internal_buffer_count; i++){ //just 3-5 checks so is not worth to optimize
318
        buf= &((InternalBuffer*)s->internal_buffer)[i];
319
        if(buf->data[0] == pic->data[0])
320
            break;
321
    }
322
    assert(i < s->internal_buffer_count);
323
    s->internal_buffer_count--;
324
    last = &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count];
325

    
326
    FFSWAP(InternalBuffer, *buf, *last);
327

    
328
    for(i=0; i<4; i++){
329
        pic->data[i]=NULL;
330
//        pic->base[i]=NULL;
331
    }
332
//printf("R%X\n", pic->opaque);
333

    
334
    if(s->debug&FF_DEBUG_BUFFERS)
335
        av_log(s, AV_LOG_DEBUG, "default_release_buffer called on pic %p, %d buffers used\n", pic, s->internal_buffer_count);
336
}
337

    
338
int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic){
339
    AVFrame temp_pic;
340
    int i;
341

    
342
    /* If no picture return a new buffer */
343
    if(pic->data[0] == NULL) {
344
        /* We will copy from buffer, so must be readable */
345
        pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
346
        return s->get_buffer(s, pic);
347
    }
348

    
349
    /* If internal buffer type return the same buffer */
350
    if(pic->type == FF_BUFFER_TYPE_INTERNAL)
351
        return 0;
352

    
353
    /*
354
     * Not internal type and reget_buffer not overridden, emulate cr buffer
355
     */
356
    temp_pic = *pic;
357
    for(i = 0; i < 4; i++)
358
        pic->data[i] = pic->base[i] = NULL;
359
    pic->opaque = NULL;
360
    /* Allocate new frame */
361
    if (s->get_buffer(s, pic))
362
        return -1;
363
    /* Copy image data from old buffer to new buffer */
364
    av_picture_copy((AVPicture*)pic, (AVPicture*)&temp_pic, s->pix_fmt, s->width,
365
             s->height);
366
    s->release_buffer(s, &temp_pic); // Release old frame
367
    return 0;
368
}
369

    
370
int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count){
371
    int i;
372

    
373
    for(i=0; i<count; i++){
374
        int r= func(c, arg[i]);
375
        if(ret) ret[i]= r;
376
    }
377
    return 0;
378
}
379

    
380
enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt){
381
    return fmt[0];
382
}
383

    
384
static const char* context_to_name(void* ptr) {
385
    AVCodecContext *avc= ptr;
386

    
387
    if(avc && avc->codec && avc->codec->name)
388
        return avc->codec->name;
389
    else
390
        return "NULL";
391
}
392

    
393
#define OFFSET(x) offsetof(AVCodecContext,x)
394
#define DEFAULT 0 //should be NAN but it does not work as it is not a constant in glibc as required by ANSI/ISO C
395
//these names are too long to be readable
396
#define V AV_OPT_FLAG_VIDEO_PARAM
397
#define A AV_OPT_FLAG_AUDIO_PARAM
398
#define S AV_OPT_FLAG_SUBTITLE_PARAM
399
#define E AV_OPT_FLAG_ENCODING_PARAM
400
#define D AV_OPT_FLAG_DECODING_PARAM
401

    
402
#define AV_CODEC_DEFAULT_BITRATE 200*1000
403

    
404
static const AVOption options[]={
405
{"b", "set bitrate (in bits/s)", OFFSET(bit_rate), FF_OPT_TYPE_INT, AV_CODEC_DEFAULT_BITRATE, INT_MIN, INT_MAX, V|E},
406
{"ab", "set bitrate (in bits/s)", OFFSET(bit_rate), FF_OPT_TYPE_INT, 64*1000, INT_MIN, INT_MAX, A|E},
407
{"bt", "set video bitrate tolerance (in bits/s)", OFFSET(bit_rate_tolerance), FF_OPT_TYPE_INT, AV_CODEC_DEFAULT_BITRATE*20, 1, INT_MAX, V|E},
408
{"flags", NULL, OFFSET(flags), FF_OPT_TYPE_FLAGS, DEFAULT, 0, UINT_MAX, V|A|E|D, "flags"},
409
{"mv4", "use four motion vector by macroblock (mpeg4)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_4MV, INT_MIN, INT_MAX, V|E, "flags"},
410
{"obmc", "use overlapped block motion compensation (h263+)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_OBMC, INT_MIN, INT_MAX, V|E, "flags"},
411
{"qpel", "use 1/4 pel motion compensation", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_QPEL, INT_MIN, INT_MAX, V|E, "flags"},
412
{"loop", "use loop filter", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_LOOP_FILTER, INT_MIN, INT_MAX, V|E, "flags"},
413
{"qscale", "use fixed qscale", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_QSCALE, INT_MIN, INT_MAX, 0, "flags"},
414
{"gmc", "use gmc", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_GMC, INT_MIN, INT_MAX, V|E, "flags"},
415
{"mv0", "always try a mb with mv=<0,0>", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_MV0, INT_MIN, INT_MAX, V|E, "flags"},
416
{"part", "use data partitioning", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PART, INT_MIN, INT_MAX, V|E, "flags"},
417
{"input_preserved", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG_INPUT_PRESERVED, INT_MIN, INT_MAX, 0, "flags"},
418
{"pass1", "use internal 2pass ratecontrol in first  pass mode", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PASS1, INT_MIN, INT_MAX, 0, "flags"},
419
{"pass2", "use internal 2pass ratecontrol in second pass mode", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PASS2, INT_MIN, INT_MAX, 0, "flags"},
420
{"extern_huff", "use external huffman table (for mjpeg)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_EXTERN_HUFF, INT_MIN, INT_MAX, 0, "flags"},
421
{"gray", "only decode/encode grayscale", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_GRAY, INT_MIN, INT_MAX, V|E|D, "flags"},
422
{"emu_edge", "don't draw edges", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_EMU_EDGE, INT_MIN, INT_MAX, 0, "flags"},
423
{"psnr", "error[?] variables will be set during encoding", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PSNR, INT_MIN, INT_MAX, V|E, "flags"},
424
{"truncated", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG_TRUNCATED, INT_MIN, INT_MAX, 0, "flags"},
425
{"naq", "normalize adaptive quantization", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_NORMALIZE_AQP, INT_MIN, INT_MAX, V|E, "flags"},
426
{"ildct", "use interlaced dct", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_INTERLACED_DCT, INT_MIN, INT_MAX, V|E, "flags"},
427
{"low_delay", "force low delay", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_LOW_DELAY, INT_MIN, INT_MAX, V|D|E, "flags"},
428
{"alt", "enable alternate scantable (mpeg2/mpeg4)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_ALT_SCAN, INT_MIN, INT_MAX, V|E, "flags"},
429
{"global_header", "place global headers in extradata instead of every keyframe", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_GLOBAL_HEADER, INT_MIN, INT_MAX, V|A|E, "flags"},
430
{"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"},
431
{"aic", "h263 advanced intra coding / mpeg4 ac prediction", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_AC_PRED, INT_MIN, INT_MAX, V|E, "flags"},
432
{"umv", "use unlimited motion vectors", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_H263P_UMV, INT_MIN, INT_MAX, V|E, "flags"},
433
{"cbp", "use rate distortion optimization for cbp", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_CBP_RD, INT_MIN, INT_MAX, V|E, "flags"},
434
{"qprd", "use rate distortion optimization for qp selection", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_QP_RD, INT_MIN, INT_MAX, V|E, "flags"},
435
{"aiv", "h263 alternative inter vlc", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_H263P_AIV, INT_MIN, INT_MAX, V|E, "flags"},
436
{"slice", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG_H263P_SLICE_STRUCT, INT_MIN, INT_MAX, V|E, "flags"},
437
{"ilme", "interlaced motion estimation", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_INTERLACED_ME, INT_MIN, INT_MAX, V|E, "flags"},
438
{"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"},
439
{"cgop", "closed gop", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_CLOSED_GOP, INT_MIN, INT_MAX, V|E, "flags"},
440
{"fast", "allow non spec compliant speedup tricks", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_FAST, INT_MIN, INT_MAX, V|E, "flags2"},
441
{"sgop", "strictly enforce gop size", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_STRICT_GOP, INT_MIN, INT_MAX, V|E, "flags2"},
442
{"noout", "skip bitstream encoding", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_NO_OUTPUT, INT_MIN, INT_MAX, V|E, "flags2"},
443
{"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"},
444
{"sub_id", NULL, OFFSET(sub_id), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
445
{"me_method", "set motion estimation method", OFFSET(me_method), FF_OPT_TYPE_INT, ME_EPZS, INT_MIN, INT_MAX, V|E, "me_method"},
446
{"zero", "zero motion estimation (fastest)", 0, FF_OPT_TYPE_CONST, ME_ZERO, INT_MIN, INT_MAX, V|E, "me_method" },
447
{"full", "full motion estimation (slowest)", 0, FF_OPT_TYPE_CONST, ME_FULL, INT_MIN, INT_MAX, V|E, "me_method" },
448
{"epzs", "EPZS motion estimation (default)", 0, FF_OPT_TYPE_CONST, ME_EPZS, INT_MIN, INT_MAX, V|E, "me_method" },
449
{"esa", "esa motion estimation (alias for full)", 0, FF_OPT_TYPE_CONST, ME_FULL, INT_MIN, INT_MAX, V|E, "me_method" },
450
{"tesa", "tesa motion estimation", 0, FF_OPT_TYPE_CONST, ME_TESA, INT_MIN, INT_MAX, V|E, "me_method" },
451
{"dia", "dia motion estimation (alias for epzs)", 0, FF_OPT_TYPE_CONST, ME_EPZS, INT_MIN, INT_MAX, V|E, "me_method" },
452
{"log", "log motion estimation", 0, FF_OPT_TYPE_CONST, ME_LOG, INT_MIN, INT_MAX, V|E, "me_method" },
453
{"phods", "phods motion estimation", 0, FF_OPT_TYPE_CONST, ME_PHODS, INT_MIN, INT_MAX, V|E, "me_method" },
454
{"x1", "X1 motion estimation", 0, FF_OPT_TYPE_CONST, ME_X1, INT_MIN, INT_MAX, V|E, "me_method" },
455
{"hex", "hex motion estimation", 0, FF_OPT_TYPE_CONST, ME_HEX, INT_MIN, INT_MAX, V|E, "me_method" },
456
{"umh", "umh motion estimation", 0, FF_OPT_TYPE_CONST, ME_UMH, INT_MIN, INT_MAX, V|E, "me_method" },
457
{"iter", "iter motion estimation", 0, FF_OPT_TYPE_CONST, ME_ITER, INT_MIN, INT_MAX, V|E, "me_method" },
458
{"extradata_size", NULL, OFFSET(extradata_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
459
{"time_base", NULL, OFFSET(time_base), FF_OPT_TYPE_RATIONAL, DEFAULT, INT_MIN, INT_MAX},
460
{"g", "set the group of picture size", OFFSET(gop_size), FF_OPT_TYPE_INT, 12, INT_MIN, INT_MAX, V|E},
461
{"rate_emu", "frame rate emulation", OFFSET(rate_emu), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
462
{"ar", "set audio sampling rate (in Hz)", OFFSET(sample_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
463
{"ac", "set number of audio channels", OFFSET(channels), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
464
{"cutoff", "set cutoff bandwidth", OFFSET(cutoff), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, A|E},
465
{"frame_size", NULL, OFFSET(frame_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, A|E},
466
{"frame_number", NULL, OFFSET(frame_number), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
467
{"real_pict_num", NULL, OFFSET(real_pict_num), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
468
{"delay", NULL, OFFSET(delay), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
469
{"qcomp", "video quantizer scale compression (VBR)", OFFSET(qcompress), FF_OPT_TYPE_FLOAT, 0.5, -FLT_MAX, FLT_MAX, V|E},
470
{"qblur", "video quantizer scale blur (VBR)", OFFSET(qblur), FF_OPT_TYPE_FLOAT, 0.5, 0, FLT_MAX, V|E},
471
{"qmin", "min video quantizer scale (VBR)", OFFSET(qmin), FF_OPT_TYPE_INT, 2, 1, 51, V|E},
472
{"qmax", "max video quantizer scale (VBR)", OFFSET(qmax), FF_OPT_TYPE_INT, 31, 1, 51, V|E},
473
{"qdiff", "max difference between the quantizer scale (VBR)", OFFSET(max_qdiff), FF_OPT_TYPE_INT, 3, INT_MIN, INT_MAX, V|E},
474
{"bf", "use 'frames' B frames", OFFSET(max_b_frames), FF_OPT_TYPE_INT, DEFAULT, 0, FF_MAX_B_FRAMES, V|E},
475
{"b_qfactor", "qp factor between p and b frames", OFFSET(b_quant_factor), FF_OPT_TYPE_FLOAT, 1.25, -FLT_MAX, FLT_MAX, V|E},
476
{"rc_strategy", "ratecontrol method", OFFSET(rc_strategy), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
477
{"b_strategy", "strategy to choose between I/P/B-frames", OFFSET(b_frame_strategy), FF_OPT_TYPE_INT, 0, INT_MIN, INT_MAX, V|E},
478
{"hurry_up", NULL, OFFSET(hurry_up), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D},
479
{"ps", "rtp payload size in bits", OFFSET(rtp_payload_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
480
{"mv_bits", NULL, OFFSET(mv_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
481
{"header_bits", NULL, OFFSET(header_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
482
{"i_tex_bits", NULL, OFFSET(i_tex_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
483
{"p_tex_bits", NULL, OFFSET(p_tex_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
484
{"i_count", NULL, OFFSET(i_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
485
{"p_count", NULL, OFFSET(p_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
486
{"skip_count", NULL, OFFSET(skip_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
487
{"misc_bits", NULL, OFFSET(misc_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
488
{"frame_bits", NULL, OFFSET(frame_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
489
{"codec_tag", NULL, OFFSET(codec_tag), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
490
{"bug", "workaround not auto detected encoder bugs", OFFSET(workaround_bugs), FF_OPT_TYPE_FLAGS, FF_BUG_AUTODETECT, INT_MIN, INT_MAX, V|D, "bug"},
491
{"autodetect", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_AUTODETECT, INT_MIN, INT_MAX, V|D, "bug"},
492
{"old_msmpeg4", "some old lavc generated msmpeg4v3 files (no autodetection)", 0, FF_OPT_TYPE_CONST, FF_BUG_OLD_MSMPEG4, INT_MIN, INT_MAX, V|D, "bug"},
493
{"xvid_ilace", "Xvid interlacing bug (autodetected if fourcc==XVIX)", 0, FF_OPT_TYPE_CONST, FF_BUG_XVID_ILACE, INT_MIN, INT_MAX, V|D, "bug"},
494
{"ump4", "(autodetected if fourcc==UMP4)", 0, FF_OPT_TYPE_CONST, FF_BUG_UMP4, INT_MIN, INT_MAX, V|D, "bug"},
495
{"no_padding", "padding bug (autodetected)", 0, FF_OPT_TYPE_CONST, FF_BUG_NO_PADDING, INT_MIN, INT_MAX, V|D, "bug"},
496
{"amv", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_AMV, INT_MIN, INT_MAX, V|D, "bug"},
497
{"ac_vlc", "illegal vlc bug (autodetected per fourcc)", 0, FF_OPT_TYPE_CONST, FF_BUG_AC_VLC, INT_MIN, INT_MAX, V|D, "bug"},
498
{"qpel_chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_QPEL_CHROMA, INT_MIN, INT_MAX, V|D, "bug"},
499
{"std_qpel", "old standard qpel (autodetected per fourcc/version)", 0, FF_OPT_TYPE_CONST, FF_BUG_STD_QPEL, INT_MIN, INT_MAX, V|D, "bug"},
500
{"qpel_chroma2", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_QPEL_CHROMA2, INT_MIN, INT_MAX, V|D, "bug"},
501
{"direct_blocksize", "direct-qpel-blocksize bug (autodetected per fourcc/version)", 0, FF_OPT_TYPE_CONST, FF_BUG_DIRECT_BLOCKSIZE, INT_MIN, INT_MAX, V|D, "bug"},
502
{"edge", "edge padding bug (autodetected per fourcc/version)", 0, FF_OPT_TYPE_CONST, FF_BUG_EDGE, INT_MIN, INT_MAX, V|D, "bug"},
503
{"hpel_chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_HPEL_CHROMA, INT_MIN, INT_MAX, V|D, "bug"},
504
{"dc_clip", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_DC_CLIP, INT_MIN, INT_MAX, V|D, "bug"},
505
{"ms", "workaround various bugs in microsofts broken decoders", 0, FF_OPT_TYPE_CONST, FF_BUG_MS, INT_MIN, INT_MAX, V|D, "bug"},
506
{"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},
507
{"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},
508
{"strict", "how strictly to follow the standards", OFFSET(strict_std_compliance), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, A|V|D|E, "strict"},
509
{"very", "strictly conform to a older more strict version of the spec or reference software", 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_VERY_STRICT, INT_MIN, INT_MAX, V|D|E, "strict"},
510
{"strict", "strictly conform to all the things in the spec no matter what consequences", 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_STRICT, INT_MIN, INT_MAX, V|D|E, "strict"},
511
{"normal", NULL, 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_NORMAL, INT_MIN, INT_MAX, V|D|E, "strict"},
512
{"inofficial", "allow inofficial extensions", 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_INOFFICIAL, INT_MIN, INT_MAX, V|D|E, "strict"},
513
{"experimental", "allow non standardized experimental things", 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_EXPERIMENTAL, INT_MIN, INT_MAX, V|D|E, "strict"},
514
{"b_qoffset", "qp offset between P and B frames", OFFSET(b_quant_offset), FF_OPT_TYPE_FLOAT, 1.25, -FLT_MAX, FLT_MAX, V|E},
515
{"er", "set error detection aggressivity", OFFSET(error_recognition), FF_OPT_TYPE_INT, FF_ER_CAREFUL, INT_MIN, INT_MAX, A|V|D, "er"},
516
{"careful", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_CAREFUL, INT_MIN, INT_MAX, V|D, "er"},
517
{"compliant", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_COMPLIANT, INT_MIN, INT_MAX, V|D, "er"},
518
{"aggressive", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_AGGRESSIVE, INT_MIN, INT_MAX, V|D, "er"},
519
{"very_aggressive", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_VERY_AGGRESSIVE, INT_MIN, INT_MAX, V|D, "er"},
520
{"has_b_frames", NULL, OFFSET(has_b_frames), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
521
{"block_align", NULL, OFFSET(block_align), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
522
{"parse_only", NULL, OFFSET(parse_only), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
523
{"mpeg_quant", "use MPEG quantizers instead of H.263", OFFSET(mpeg_quant), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
524
{"stats_out", NULL, OFFSET(stats_out), FF_OPT_TYPE_STRING, DEFAULT, CHAR_MIN, CHAR_MAX},
525
{"stats_in", NULL, OFFSET(stats_in), FF_OPT_TYPE_STRING, DEFAULT, CHAR_MIN, CHAR_MAX},
526
{"qsquish", "how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function)", OFFSET(rc_qsquish), FF_OPT_TYPE_FLOAT, DEFAULT, 0, 99, V|E},
527
{"rc_qmod_amp", "experimental quantizer modulation", OFFSET(rc_qmod_amp), FF_OPT_TYPE_FLOAT, DEFAULT, -FLT_MAX, FLT_MAX, V|E},
528
{"rc_qmod_freq", "experimental quantizer modulation", OFFSET(rc_qmod_freq), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
529
{"rc_override_count", NULL, OFFSET(rc_override_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
530
{"rc_eq", "set rate control equation", OFFSET(rc_eq), FF_OPT_TYPE_STRING, DEFAULT, CHAR_MIN, CHAR_MAX, V|E},
531
{"maxrate", "set max video bitrate tolerance (in bits/s)", OFFSET(rc_max_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
532
{"minrate", "set min video bitrate tolerance (in bits/s)", OFFSET(rc_min_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
533
{"bufsize", "set ratecontrol buffer size (in bits)", OFFSET(rc_buffer_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, A|V|E},
534
{"rc_buf_aggressivity", "currently useless", OFFSET(rc_buffer_aggressivity), FF_OPT_TYPE_FLOAT, 1.0, -FLT_MAX, FLT_MAX, V|E},
535
{"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},
536
{"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},
537
{"rc_init_cplx", "initial complexity for 1-pass encoding", OFFSET(rc_initial_cplx), FF_OPT_TYPE_FLOAT, DEFAULT, -FLT_MAX, FLT_MAX, V|E},
538
{"dct", "DCT algorithm", OFFSET(dct_algo), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, V|E, "dct"},
539
{"auto", "autoselect a good one (default)", 0, FF_OPT_TYPE_CONST, FF_DCT_AUTO, INT_MIN, INT_MAX, V|E, "dct"},
540
{"fastint", "fast integer", 0, FF_OPT_TYPE_CONST, FF_DCT_FASTINT, INT_MIN, INT_MAX, V|E, "dct"},
541
{"int", "accurate integer", 0, FF_OPT_TYPE_CONST, FF_DCT_INT, INT_MIN, INT_MAX, V|E, "dct"},
542
{"mmx", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_MMX, INT_MIN, INT_MAX, V|E, "dct"},
543
{"mlib", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_MLIB, INT_MIN, INT_MAX, V|E, "dct"},
544
{"altivec", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_ALTIVEC, INT_MIN, INT_MAX, V|E, "dct"},
545
{"faan", "floating point AAN DCT", 0, FF_OPT_TYPE_CONST, FF_DCT_FAAN, INT_MIN, INT_MAX, V|E, "dct"},
546
{"lumi_mask", "compresses bright areas stronger than medium ones", OFFSET(lumi_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
547
{"tcplx_mask", "temporal complexity masking", OFFSET(temporal_cplx_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
548
{"scplx_mask", "spatial complexity masking", OFFSET(spatial_cplx_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
549
{"p_mask", "inter masking", OFFSET(p_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
550
{"dark_mask", "compresses dark areas stronger than medium ones", OFFSET(dark_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
551
{"idct", "select IDCT implementation", OFFSET(idct_algo), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, V|E|D, "idct"},
552
{"auto", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_AUTO, INT_MIN, INT_MAX, V|E|D, "idct"},
553
{"int", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_INT, INT_MIN, INT_MAX, V|E|D, "idct"},
554
{"simple", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLE, INT_MIN, INT_MAX, V|E|D, "idct"},
555
{"simplemmx", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEMMX, INT_MIN, INT_MAX, V|E|D, "idct"},
556
{"libmpeg2mmx", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_LIBMPEG2MMX, INT_MIN, INT_MAX, V|E|D, "idct"},
557
{"ps2", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_PS2, INT_MIN, INT_MAX, V|E|D, "idct"},
558
{"mlib", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_MLIB, INT_MIN, INT_MAX, V|E|D, "idct"},
559
{"arm", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_ARM, INT_MIN, INT_MAX, V|E|D, "idct"},
560
{"altivec", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_ALTIVEC, INT_MIN, INT_MAX, V|E|D, "idct"},
561
{"sh4", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SH4, INT_MIN, INT_MAX, V|E|D, "idct"},
562
{"simplearm", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEARM, INT_MIN, INT_MAX, V|E|D, "idct"},
563
{"simplearmv5te", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEARMV5TE, INT_MIN, INT_MAX, V|E|D, "idct"},
564
{"simplearmv6", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEARMV6, INT_MIN, INT_MAX, V|E|D, "idct"},
565
{"h264", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_H264, INT_MIN, INT_MAX, V|E|D, "idct"},
566
{"vp3", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_VP3, INT_MIN, INT_MAX, V|E|D, "idct"},
567
{"ipp", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_IPP, INT_MIN, INT_MAX, V|E|D, "idct"},
568
{"xvidmmx", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_XVIDMMX, INT_MIN, INT_MAX, V|E|D, "idct"},
569
{"faani", "floating point AAN IDCT", 0, FF_OPT_TYPE_CONST, FF_IDCT_FAAN, INT_MIN, INT_MAX, V|D|E, "idct"},
570
{"slice_count", NULL, OFFSET(slice_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
571
{"ec", "set error concealment strategy", OFFSET(error_concealment), FF_OPT_TYPE_FLAGS, 3, INT_MIN, INT_MAX, V|D, "ec"},
572
{"guess_mvs", "iterative motion vector (MV) search (slow)", 0, FF_OPT_TYPE_CONST, FF_EC_GUESS_MVS, INT_MIN, INT_MAX, V|D, "ec"},
573
{"deblock", "use strong deblock filter for damaged MBs", 0, FF_OPT_TYPE_CONST, FF_EC_DEBLOCK, INT_MIN, INT_MAX, V|D, "ec"},
574
{"bits_per_coded_sample", NULL, OFFSET(bits_per_coded_sample), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
575
{"pred", "prediction method", OFFSET(prediction_method), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "pred"},
576
{"left", NULL, 0, FF_OPT_TYPE_CONST, FF_PRED_LEFT, INT_MIN, INT_MAX, V|E, "pred"},
577
{"plane", NULL, 0, FF_OPT_TYPE_CONST, FF_PRED_PLANE, INT_MIN, INT_MAX, V|E, "pred"},
578
{"median", NULL, 0, FF_OPT_TYPE_CONST, FF_PRED_MEDIAN, INT_MIN, INT_MAX, V|E, "pred"},
579
{"aspect", "sample aspect ratio", OFFSET(sample_aspect_ratio), FF_OPT_TYPE_RATIONAL, DEFAULT, 0, 10, V|E},
580
{"debug", "print specific debug info", OFFSET(debug), FF_OPT_TYPE_FLAGS, DEFAULT, 0, INT_MAX, V|A|S|E|D, "debug"},
581
{"pict", "picture info", 0, FF_OPT_TYPE_CONST, FF_DEBUG_PICT_INFO, INT_MIN, INT_MAX, V|D, "debug"},
582
{"rc", "rate control", 0, FF_OPT_TYPE_CONST, FF_DEBUG_RC, INT_MIN, INT_MAX, V|E, "debug"},
583
{"bitstream", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_BITSTREAM, INT_MIN, INT_MAX, V|D, "debug"},
584
{"mb_type", "macroblock (MB) type", 0, FF_OPT_TYPE_CONST, FF_DEBUG_MB_TYPE, INT_MIN, INT_MAX, V|D, "debug"},
585
{"qp", "per-block quantization parameter (QP)", 0, FF_OPT_TYPE_CONST, FF_DEBUG_QP, INT_MIN, INT_MAX, V|D, "debug"},
586
{"mv", "motion vector", 0, FF_OPT_TYPE_CONST, FF_DEBUG_MV, INT_MIN, INT_MAX, V|D, "debug"},
587
{"dct_coeff", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_DCT_COEFF, INT_MIN, INT_MAX, V|D, "debug"},
588
{"skip", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_SKIP, INT_MIN, INT_MAX, V|D, "debug"},
589
{"startcode", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_STARTCODE, INT_MIN, INT_MAX, V|D, "debug"},
590
{"pts", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_PTS, INT_MIN, INT_MAX, V|D, "debug"},
591
{"er", "error recognition", 0, FF_OPT_TYPE_CONST, FF_DEBUG_ER, INT_MIN, INT_MAX, V|D, "debug"},
592
{"mmco", "memory management control operations (H.264)", 0, FF_OPT_TYPE_CONST, FF_DEBUG_MMCO, INT_MIN, INT_MAX, V|D, "debug"},
593
{"bugs", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_BUGS, INT_MIN, INT_MAX, V|D, "debug"},
594
{"vis_qp", "visualize quantization parameter (QP), lower QP are tinted greener", 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_QP, INT_MIN, INT_MAX, V|D, "debug"},
595
{"vis_mb_type", "visualize block types", 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_MB_TYPE, INT_MIN, INT_MAX, V|D, "debug"},
596
{"buffers", "picture buffer allocations", 0, FF_OPT_TYPE_CONST, FF_DEBUG_BUFFERS, INT_MIN, INT_MAX, V|D, "debug"},
597
{"vismv", "visualize motion vectors (MVs)", OFFSET(debug_mv), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, V|D, "debug_mv"},
598
{"pf", "forward predicted MVs of P-frames", 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_MV_P_FOR, INT_MIN, INT_MAX, V|D, "debug_mv"},
599
{"bf", "forward predicted MVs of B-frames", 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_MV_B_FOR, INT_MIN, INT_MAX, V|D, "debug_mv"},
600
{"bb", "backward predicted MVs of B-frames", 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_MV_B_BACK, INT_MIN, INT_MAX, V|D, "debug_mv"},
601
{"mb_qmin", "obsolete, use qmin", OFFSET(mb_qmin), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
602
{"mb_qmax", "obsolete, use qmax", OFFSET(mb_qmax), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
603
{"cmp", "full pel me compare function", OFFSET(me_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
604
{"subcmp", "sub pel me compare function", OFFSET(me_sub_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
605
{"mbcmp", "macroblock compare function", OFFSET(mb_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
606
{"ildctcmp", "interlaced dct compare function", OFFSET(ildct_cmp), FF_OPT_TYPE_INT, FF_CMP_VSAD, INT_MIN, INT_MAX, V|E, "cmp_func"},
607
{"dia_size", "diamond type & size for motion estimation", OFFSET(dia_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
608
{"last_pred", "amount of motion predictors from the previous frame", OFFSET(last_predictor_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
609
{"preme", "pre motion estimation", OFFSET(pre_me), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
610
{"precmp", "pre motion estimation compare function", OFFSET(me_pre_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
611
{"sad", "sum of absolute differences, fast (default)", 0, FF_OPT_TYPE_CONST, FF_CMP_SAD, INT_MIN, INT_MAX, V|E, "cmp_func"},
612
{"sse", "sum of squared errors", 0, FF_OPT_TYPE_CONST, FF_CMP_SSE, INT_MIN, INT_MAX, V|E, "cmp_func"},
613
{"satd", "sum of absolute Hadamard transformed differences", 0, FF_OPT_TYPE_CONST, FF_CMP_SATD, INT_MIN, INT_MAX, V|E, "cmp_func"},
614
{"dct", "sum of absolute DCT transformed differences", 0, FF_OPT_TYPE_CONST, FF_CMP_DCT, INT_MIN, INT_MAX, V|E, "cmp_func"},
615
{"psnr", "sum of squared quantization errors (avoid, low quality)", 0, FF_OPT_TYPE_CONST, FF_CMP_PSNR, INT_MIN, INT_MAX, V|E, "cmp_func"},
616
{"bit", "number of bits needed for the block", 0, FF_OPT_TYPE_CONST, FF_CMP_BIT, INT_MIN, INT_MAX, V|E, "cmp_func"},
617
{"rd", "rate distortion optimal, slow", 0, FF_OPT_TYPE_CONST, FF_CMP_RD, INT_MIN, INT_MAX, V|E, "cmp_func"},
618
{"zero", "0", 0, FF_OPT_TYPE_CONST, FF_CMP_ZERO, INT_MIN, INT_MAX, V|E, "cmp_func"},
619
{"vsad", "sum of absolute vertical differences", 0, FF_OPT_TYPE_CONST, FF_CMP_VSAD, INT_MIN, INT_MAX, V|E, "cmp_func"},
620
{"vsse","sum of squared vertical differences", 0, FF_OPT_TYPE_CONST, FF_CMP_VSSE, INT_MIN, INT_MAX, V|E, "cmp_func"},
621
{"nsse", "noise preserving sum of squared differences", 0, FF_OPT_TYPE_CONST, FF_CMP_NSSE, INT_MIN, INT_MAX, V|E, "cmp_func"},
622
#ifdef CONFIG_SNOW_ENCODER
623
{"w53", "5/3 wavelet, only used in snow", 0, FF_OPT_TYPE_CONST, FF_CMP_W53, INT_MIN, INT_MAX, V|E, "cmp_func"},
624
{"w97", "9/7 wavelet, only used in snow", 0, FF_OPT_TYPE_CONST, FF_CMP_W97, INT_MIN, INT_MAX, V|E, "cmp_func"},
625
#endif
626
{"dctmax", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_DCTMAX, INT_MIN, INT_MAX, V|E, "cmp_func"},
627
{"chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_CHROMA, INT_MIN, INT_MAX, V|E, "cmp_func"},
628
{"pre_dia_size", "diamond type & size for motion estimation pre-pass", OFFSET(pre_dia_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
629
{"subq", "sub pel motion estimation quality", OFFSET(me_subpel_quality), FF_OPT_TYPE_INT, 8, INT_MIN, INT_MAX, V|E},
630
{"dtg_active_format", NULL, OFFSET(dtg_active_format), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
631
{"me_range", "limit motion vectors range (1023 for DivX player)", OFFSET(me_range), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
632
{"ibias", "intra quant bias", OFFSET(intra_quant_bias), FF_OPT_TYPE_INT, FF_DEFAULT_QUANT_BIAS, INT_MIN, INT_MAX, V|E},
633
{"pbias", "inter quant bias", OFFSET(inter_quant_bias), FF_OPT_TYPE_INT, FF_DEFAULT_QUANT_BIAS, INT_MIN, INT_MAX, V|E},
634
{"color_table_id", NULL, OFFSET(color_table_id), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
635
{"internal_buffer_count", NULL, OFFSET(internal_buffer_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
636
{"global_quality", NULL, OFFSET(global_quality), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
637
{"coder", NULL, OFFSET(coder_type), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "coder"},
638
{"vlc", "variable length coder / huffman coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_VLC, INT_MIN, INT_MAX, V|E, "coder"},
639
{"ac", "arithmetic coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_AC, INT_MIN, INT_MAX, V|E, "coder"},
640
{"raw", "raw (no encoding)", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_RAW, INT_MIN, INT_MAX, V|E, "coder"},
641
{"rle", "run-length coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_RLE, INT_MIN, INT_MAX, V|E, "coder"},
642
{"deflate", "deflate-based coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_DEFLATE, INT_MIN, INT_MAX, V|E, "coder"},
643
{"context", "context model", OFFSET(context_model), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
644
{"slice_flags", NULL, OFFSET(slice_flags), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
645
{"xvmc_acceleration", NULL, OFFSET(xvmc_acceleration), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
646
{"mbd", "macroblock decision algorithm (high quality mode)", OFFSET(mb_decision), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "mbd"},
647
{"simple", "use mbcmp (default)", 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_SIMPLE, INT_MIN, INT_MAX, V|E, "mbd"},
648
{"bits", "use fewest bits", 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_BITS, INT_MIN, INT_MAX, V|E, "mbd"},
649
{"rd", "use best rate distortion", 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_RD, INT_MIN, INT_MAX, V|E, "mbd"},
650
{"stream_codec_tag", NULL, OFFSET(stream_codec_tag), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
651
{"sc_threshold", "scene change threshold", OFFSET(scenechange_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
652
{"lmin", "min lagrange factor (VBR)", OFFSET(lmin), FF_OPT_TYPE_INT,  2*FF_QP2LAMBDA, 0, INT_MAX, V|E},
653
{"lmax", "max lagrange factor (VBR)", OFFSET(lmax), FF_OPT_TYPE_INT, 31*FF_QP2LAMBDA, 0, INT_MAX, V|E},
654
{"nr", "noise reduction", OFFSET(noise_reduction), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
655
{"rc_init_occupancy", "number of bits which should be loaded into the rc buffer before decoding starts", OFFSET(rc_initial_buffer_occupancy), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
656
{"inter_threshold", NULL, OFFSET(inter_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
657
{"flags2", NULL, OFFSET(flags2), FF_OPT_TYPE_FLAGS, CODEC_FLAG2_FASTPSKIP|CODEC_FLAG2_BIT_RESERVOIR, 0, UINT_MAX, V|A|E|D, "flags2"},
658
{"error", NULL, OFFSET(error_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
659
{"antialias", "MP3 antialias algorithm", OFFSET(antialias_algo), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D, "aa"},
660
{"auto", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_AUTO, INT_MIN, INT_MAX, V|D, "aa"},
661
{"fastint", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_FASTINT, INT_MIN, INT_MAX, V|D, "aa"},
662
{"int", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_INT, INT_MIN, INT_MAX, V|D, "aa"},
663
{"float", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_FLOAT, INT_MIN, INT_MAX, V|D, "aa"},
664
{"qns", "quantizer noise shaping", OFFSET(quantizer_noise_shaping), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
665
{"threads", NULL, OFFSET(thread_count), FF_OPT_TYPE_INT, 1, INT_MIN, INT_MAX, V|E|D},
666
{"me_threshold", "motion estimaton threshold", OFFSET(me_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
667
{"mb_threshold", "macroblock threshold", OFFSET(mb_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
668
{"dc", "intra_dc_precision", OFFSET(intra_dc_precision), FF_OPT_TYPE_INT, 0, INT_MIN, INT_MAX, V|E},
669
{"nssew", "nsse weight", OFFSET(nsse_weight), FF_OPT_TYPE_INT, 8, INT_MIN, INT_MAX, V|E},
670
{"skip_top", "number of macroblock rows at the top which are skipped", OFFSET(skip_top), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D},
671
{"skip_bottom", "number of macroblock rows at the bottom which are skipped", OFFSET(skip_bottom), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D},
672
{"profile", NULL, OFFSET(profile), FF_OPT_TYPE_INT, FF_PROFILE_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "profile"},
673
{"unknown", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "profile"},
674
{"aac_main", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_AAC_MAIN, INT_MIN, INT_MAX, A|E, "profile"},
675
{"aac_low", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_AAC_LOW, INT_MIN, INT_MAX, A|E, "profile"},
676
{"aac_ssr", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_AAC_SSR, INT_MIN, INT_MAX, A|E, "profile"},
677
{"aac_ltp", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_AAC_LTP, INT_MIN, INT_MAX, A|E, "profile"},
678
{"level", NULL, OFFSET(level), FF_OPT_TYPE_INT, FF_LEVEL_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "level"},
679
{"unknown", NULL, 0, FF_OPT_TYPE_CONST, FF_LEVEL_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "level"},
680
{"lowres", "decode at 1= 1/2, 2=1/4, 3=1/8 resolutions", OFFSET(lowres), FF_OPT_TYPE_INT, 0, 0, INT_MAX, V|D},
681
{"skip_threshold", "frame skip threshold", OFFSET(frame_skip_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
682
{"skip_factor", "frame skip factor", OFFSET(frame_skip_factor), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
683
{"skip_exp", "frame skip exponent", OFFSET(frame_skip_exp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
684
{"skipcmp", "frame skip compare function", OFFSET(frame_skip_cmp), FF_OPT_TYPE_INT, FF_CMP_DCTMAX, INT_MIN, INT_MAX, V|E, "cmp_func"},
685
{"border_mask", "increases the quantizer for macroblocks close to borders", OFFSET(border_masking), FF_OPT_TYPE_FLOAT, DEFAULT, -FLT_MAX, FLT_MAX, V|E},
686
{"mblmin", "min macroblock lagrange factor (VBR)", OFFSET(mb_lmin), FF_OPT_TYPE_INT, FF_QP2LAMBDA * 2, 1, FF_LAMBDA_MAX, V|E},
687
{"mblmax", "max macroblock lagrange factor (VBR)", OFFSET(mb_lmax), FF_OPT_TYPE_INT, FF_QP2LAMBDA * 31, 1, FF_LAMBDA_MAX, V|E},
688
{"mepc", "motion estimation bitrate penalty compensation (1.0 = 256)", OFFSET(me_penalty_compensation), FF_OPT_TYPE_INT, 256, INT_MIN, INT_MAX, V|E},
689
{"skip_loop_filter", NULL, OFFSET(skip_loop_filter), FF_OPT_TYPE_INT, AVDISCARD_DEFAULT, INT_MIN, INT_MAX, V|D, "avdiscard"},
690
{"skip_idct"       , NULL, OFFSET(skip_idct)       , FF_OPT_TYPE_INT, AVDISCARD_DEFAULT, INT_MIN, INT_MAX, V|D, "avdiscard"},
691
{"skip_frame"      , NULL, OFFSET(skip_frame)      , FF_OPT_TYPE_INT, AVDISCARD_DEFAULT, INT_MIN, INT_MAX, V|D, "avdiscard"},
692
{"none"            , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_NONE   , INT_MIN, INT_MAX, V|D, "avdiscard"},
693
{"default"         , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_DEFAULT, INT_MIN, INT_MAX, V|D, "avdiscard"},
694
{"noref"           , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_NONREF , INT_MIN, INT_MAX, V|D, "avdiscard"},
695
{"bidir"           , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_BIDIR  , INT_MIN, INT_MAX, V|D, "avdiscard"},
696
{"nokey"           , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_NONKEY , INT_MIN, INT_MAX, V|D, "avdiscard"},
697
{"all"             , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_ALL    , INT_MIN, INT_MAX, V|D, "avdiscard"},
698
{"bidir_refine", "refine the two motion vectors used in bidirectional macroblocks", OFFSET(bidir_refine), FF_OPT_TYPE_INT, DEFAULT, 0, 4, V|E},
699
{"brd_scale", "downscales frames for dynamic B-frame decision", OFFSET(brd_scale), FF_OPT_TYPE_INT, DEFAULT, 0, 10, V|E},
700
{"crf", "enables constant quality mode, and selects the quality (x264)", OFFSET(crf), FF_OPT_TYPE_FLOAT, DEFAULT, 0, 51, V|E},
701
{"cqp", "constant quantization parameter rate control method", OFFSET(cqp), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, V|E},
702
{"keyint_min", "minimum interval between IDR-frames (x264)", OFFSET(keyint_min), FF_OPT_TYPE_INT, 25, INT_MIN, INT_MAX, V|E},
703
{"refs", "reference frames to consider for motion compensation (Snow)", OFFSET(refs), FF_OPT_TYPE_INT, 1, INT_MIN, INT_MAX, V|E},
704
{"chromaoffset", "chroma qp offset from luma", OFFSET(chromaoffset), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
705
{"bframebias", "influences how often B-frames are used", OFFSET(bframebias), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
706
{"trellis", "rate-distortion optimal quantization", OFFSET(trellis), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|A|E},
707
{"directpred", "direct mv prediction mode - 0 (none), 1 (spatial), 2 (temporal), 3 (auto)", OFFSET(directpred), FF_OPT_TYPE_INT, 2, INT_MIN, INT_MAX, V|E},
708
{"bpyramid", "allows B-frames to be used as references for predicting", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_BPYRAMID, INT_MIN, INT_MAX, V|E, "flags2"},
709
{"wpred", "weighted biprediction for b-frames (H.264)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_WPRED, INT_MIN, INT_MAX, V|E, "flags2"},
710
{"mixed_refs", "one reference per partition, as opposed to one reference per macroblock", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_MIXED_REFS, INT_MIN, INT_MAX, V|E, "flags2"},
711
{"dct8x8", "high profile 8x8 transform (H.264)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_8X8DCT, INT_MIN, INT_MAX, V|E, "flags2"},
712
{"fastpskip", "fast pskip (H.264)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_FASTPSKIP, INT_MIN, INT_MAX, V|E, "flags2"},
713
{"aud", "access unit delimiters (H.264)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_AUD, INT_MIN, INT_MAX, V|E, "flags2"},
714
{"skiprd", "RD optimal MB level residual skipping", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_SKIP_RD, INT_MIN, INT_MAX, V|E, "flags2"},
715
{"complexityblur", "reduce fluctuations in qp (before curve compression)", OFFSET(complexityblur), FF_OPT_TYPE_FLOAT, 20.0, FLT_MIN, FLT_MAX, V|E},
716
{"deblockalpha", "in-loop deblocking filter alphac0 parameter", OFFSET(deblockalpha), FF_OPT_TYPE_INT, DEFAULT, -6, 6, V|E},
717
{"deblockbeta", "in-loop deblocking filter beta parameter", OFFSET(deblockbeta), FF_OPT_TYPE_INT, DEFAULT, -6, 6, V|E},
718
{"partitions", "macroblock subpartition sizes to consider", OFFSET(partitions), FF_OPT_TYPE_FLAGS, DEFAULT, INT_MIN, INT_MAX, V|E, "partitions"},
719
{"parti4x4", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_I4X4, INT_MIN, INT_MAX, V|E, "partitions"},
720
{"parti8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_I8X8, INT_MIN, INT_MAX, V|E, "partitions"},
721
{"partp4x4", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_P4X4, INT_MIN, INT_MAX, V|E, "partitions"},
722
{"partp8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_P8X8, INT_MIN, INT_MAX, V|E, "partitions"},
723
{"partb8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_B8X8, INT_MIN, INT_MAX, V|E, "partitions"},
724
{"sc_factor", "multiplied by qscale for each frame and added to scene_change_score", OFFSET(scenechange_factor), FF_OPT_TYPE_INT, 6, 0, INT_MAX, V|E},
725
{"mv0_threshold", NULL, OFFSET(mv0_threshold), FF_OPT_TYPE_INT, 256, 0, INT_MAX, V|E},
726
{"ivlc", "intra vlc table", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_INTRA_VLC, INT_MIN, INT_MAX, V|E, "flags2"},
727
{"b_sensitivity", "adjusts sensitivity of b_frame_strategy 1", OFFSET(b_sensitivity), FF_OPT_TYPE_INT, 40, 1, INT_MAX, V|E},
728
{"compression_level", NULL, OFFSET(compression_level), FF_OPT_TYPE_INT, FF_COMPRESSION_DEFAULT, INT_MIN, INT_MAX, V|A|E},
729
{"use_lpc", "sets whether to use LPC mode (FLAC)", OFFSET(use_lpc), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
730
{"lpc_coeff_precision", "LPC coefficient precision (FLAC)", OFFSET(lpc_coeff_precision), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, A|E},
731
{"min_prediction_order", NULL, OFFSET(min_prediction_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
732
{"max_prediction_order", NULL, OFFSET(max_prediction_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
733
{"prediction_order_method", "search method for selecting prediction order", OFFSET(prediction_order_method), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
734
{"min_partition_order", NULL, OFFSET(min_partition_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
735
{"max_partition_order", NULL, OFFSET(max_partition_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
736
{"timecode_frame_start", "GOP timecode frame start number, in non drop frame format", OFFSET(timecode_frame_start), FF_OPT_TYPE_INT, 0, 0, INT_MAX, V|E},
737
{"drop_frame_timecode", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_DROP_FRAME_TIMECODE, INT_MIN, INT_MAX, V|E, "flags2"},
738
{"non_linear_q", "use non linear quantizer", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_NON_LINEAR_QUANT, INT_MIN, INT_MAX, V|E, "flags2"},
739
{"request_channels", "set desired number of audio channels", OFFSET(request_channels), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, A|D},
740
{"drc_scale", "percentage of dynamic range compression to apply", OFFSET(drc_scale), FF_OPT_TYPE_FLOAT, 1.0, 0.0, 1.0, A|D},
741
{"reservoir", "use bit reservoir", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_BIT_RESERVOIR, INT_MIN, INT_MAX, A|E, "flags2"},
742
{"bits_per_raw_sample", NULL, OFFSET(bits_per_raw_sample), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
743
{NULL},
744
};
745

    
746
#undef A
747
#undef V
748
#undef S
749
#undef E
750
#undef D
751
#undef DEFAULT
752

    
753
static const AVClass av_codec_context_class = { "AVCodecContext", context_to_name, options };
754

    
755
void avcodec_get_context_defaults2(AVCodecContext *s, enum CodecType codec_type){
756
    int flags=0;
757
    memset(s, 0, sizeof(AVCodecContext));
758

    
759
    s->av_class= &av_codec_context_class;
760

    
761
    s->codec_type = codec_type;
762
    if(codec_type == CODEC_TYPE_AUDIO)
763
        flags= AV_OPT_FLAG_AUDIO_PARAM;
764
    else if(codec_type == CODEC_TYPE_VIDEO)
765
        flags= AV_OPT_FLAG_VIDEO_PARAM;
766
    else if(codec_type == CODEC_TYPE_SUBTITLE)
767
        flags= AV_OPT_FLAG_SUBTITLE_PARAM;
768
    av_opt_set_defaults2(s, flags, flags);
769

    
770
    s->time_base= (AVRational){0,1};
771
    s->get_buffer= avcodec_default_get_buffer;
772
    s->release_buffer= avcodec_default_release_buffer;
773
    s->get_format= avcodec_default_get_format;
774
    s->execute= avcodec_default_execute;
775
    s->sample_aspect_ratio= (AVRational){0,1};
776
    s->pix_fmt= PIX_FMT_NONE;
777
    s->sample_fmt= SAMPLE_FMT_S16; // FIXME: set to NONE
778

    
779
    s->palctrl = NULL;
780
    s->reget_buffer= avcodec_default_reget_buffer;
781
}
782

    
783
AVCodecContext *avcodec_alloc_context2(enum CodecType codec_type){
784
    AVCodecContext *avctx= av_malloc(sizeof(AVCodecContext));
785

    
786
    if(avctx==NULL) return NULL;
787

    
788
    avcodec_get_context_defaults2(avctx, codec_type);
789

    
790
    return avctx;
791
}
792

    
793
void avcodec_get_context_defaults(AVCodecContext *s){
794
    avcodec_get_context_defaults2(s, CODEC_TYPE_UNKNOWN);
795
}
796

    
797
AVCodecContext *avcodec_alloc_context(void){
798
    return avcodec_alloc_context2(CODEC_TYPE_UNKNOWN);
799
}
800

    
801
void avcodec_get_frame_defaults(AVFrame *pic){
802
    memset(pic, 0, sizeof(AVFrame));
803

    
804
    pic->pts= AV_NOPTS_VALUE;
805
    pic->key_frame= 1;
806
}
807

    
808
AVFrame *avcodec_alloc_frame(void){
809
    AVFrame *pic= av_malloc(sizeof(AVFrame));
810

    
811
    if(pic==NULL) return NULL;
812

    
813
    avcodec_get_frame_defaults(pic);
814

    
815
    return pic;
816
}
817

    
818
int attribute_align_arg avcodec_open(AVCodecContext *avctx, AVCodec *codec)
819
{
820
    int ret= -1;
821

    
822
    entangled_thread_counter++;
823
    if(entangled_thread_counter != 1){
824
        av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
825
        goto end;
826
    }
827

    
828
    if(avctx->codec || !codec)
829
        goto end;
830

    
831
    if (codec->priv_data_size > 0) {
832
        avctx->priv_data = av_mallocz(codec->priv_data_size);
833
        if (!avctx->priv_data) {
834
            ret = AVERROR(ENOMEM);
835
            goto end;
836
        }
837
    } else {
838
        avctx->priv_data = NULL;
839
    }
840

    
841
    if(avctx->coded_width && avctx->coded_height)
842
        avcodec_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
843
    else if(avctx->width && avctx->height)
844
        avcodec_set_dimensions(avctx, avctx->width, avctx->height);
845

    
846
    if((avctx->coded_width||avctx->coded_height) && avcodec_check_dimensions(avctx,avctx->coded_width,avctx->coded_height)){
847
        av_freep(&avctx->priv_data);
848
        ret = AVERROR(EINVAL);
849
        goto end;
850
    }
851

    
852
    avctx->codec = codec;
853
    avctx->codec_id = codec->id;
854
    avctx->frame_number = 0;
855
    if(avctx->codec->init){
856
        ret = avctx->codec->init(avctx);
857
        if (ret < 0) {
858
            av_freep(&avctx->priv_data);
859
            avctx->codec= NULL;
860
            goto end;
861
        }
862
    }
863
    ret=0;
864
end:
865
    entangled_thread_counter--;
866
    return ret;
867
}
868

    
869
int attribute_align_arg avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
870
                         const short *samples)
871
{
872
    if(buf_size < FF_MIN_BUFFER_SIZE && 0){
873
        av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
874
        return -1;
875
    }
876
    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || samples){
877
        int ret = avctx->codec->encode(avctx, buf, buf_size, (void *)samples);
878
        avctx->frame_number++;
879
        return ret;
880
    }else
881
        return 0;
882
}
883

    
884
int attribute_align_arg avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
885
                         const AVFrame *pict)
886
{
887
    if(buf_size < FF_MIN_BUFFER_SIZE){
888
        av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
889
        return -1;
890
    }
891
    if(avcodec_check_dimensions(avctx,avctx->width,avctx->height))
892
        return -1;
893
    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || pict){
894
        int ret = avctx->codec->encode(avctx, buf, buf_size, (void *)pict);
895
        avctx->frame_number++;
896
        emms_c(); //needed to avoid an emms_c() call before every return;
897

    
898
        return ret;
899
    }else
900
        return 0;
901
}
902

    
903
int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
904
                            const AVSubtitle *sub)
905
{
906
    int ret;
907
    ret = avctx->codec->encode(avctx, buf, buf_size, (void *)sub);
908
    avctx->frame_number++;
909
    return ret;
910
}
911

    
912
int attribute_align_arg avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
913
                         int *got_picture_ptr,
914
                         const uint8_t *buf, int buf_size)
915
{
916
    int ret;
917

    
918
    *got_picture_ptr= 0;
919
    if((avctx->coded_width||avctx->coded_height) && avcodec_check_dimensions(avctx,avctx->coded_width,avctx->coded_height))
920
        return -1;
921
    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || buf_size){
922
        ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
923
                                buf, buf_size);
924

    
925
        emms_c(); //needed to avoid an emms_c() call before every return;
926

    
927
        if (*got_picture_ptr)
928
            avctx->frame_number++;
929
    }else
930
        ret= 0;
931

    
932
    return ret;
933
}
934

    
935
int attribute_align_arg avcodec_decode_audio2(AVCodecContext *avctx, int16_t *samples,
936
                         int *frame_size_ptr,
937
                         const uint8_t *buf, int buf_size)
938
{
939
    int ret;
940

    
941
    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || buf_size){
942
        //FIXME remove the check below _after_ ensuring that all audio check that the available space is enough
943
        if(*frame_size_ptr < AVCODEC_MAX_AUDIO_FRAME_SIZE){
944
            av_log(avctx, AV_LOG_ERROR, "buffer smaller than AVCODEC_MAX_AUDIO_FRAME_SIZE\n");
945
            return -1;
946
        }
947
        if(*frame_size_ptr < FF_MIN_BUFFER_SIZE ||
948
        *frame_size_ptr < avctx->channels * avctx->frame_size * sizeof(int16_t)){
949
            av_log(avctx, AV_LOG_ERROR, "buffer %d too small\n", *frame_size_ptr);
950
            return -1;
951
        }
952

    
953
        ret = avctx->codec->decode(avctx, samples, frame_size_ptr,
954
                                buf, buf_size);
955
        avctx->frame_number++;
956
    }else{
957
        ret= 0;
958
        *frame_size_ptr=0;
959
    }
960
    return ret;
961
}
962

    
963
int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
964
                            int *got_sub_ptr,
965
                            const uint8_t *buf, int buf_size)
966
{
967
    int ret;
968

    
969
    *got_sub_ptr = 0;
970
    ret = avctx->codec->decode(avctx, sub, got_sub_ptr,
971
                               buf, buf_size);
972
    if (*got_sub_ptr)
973
        avctx->frame_number++;
974
    return ret;
975
}
976

    
977
int avcodec_close(AVCodecContext *avctx)
978
{
979
    entangled_thread_counter++;
980
    if(entangled_thread_counter != 1){
981
        av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
982
        entangled_thread_counter--;
983
        return -1;
984
    }
985

    
986
    if (ENABLE_THREADS && avctx->thread_opaque)
987
        avcodec_thread_free(avctx);
988
    if (avctx->codec->close)
989
        avctx->codec->close(avctx);
990
    avcodec_default_free_buffers(avctx);
991
    av_freep(&avctx->priv_data);
992
    avctx->codec = NULL;
993
    entangled_thread_counter--;
994
    return 0;
995
}
996

    
997
AVCodec *avcodec_find_encoder(enum CodecID id)
998
{
999
    AVCodec *p;
1000
    p = first_avcodec;
1001
    while (p) {
1002
        if (p->encode != NULL && p->id == id)
1003
            return p;
1004
        p = p->next;
1005
    }
1006
    return NULL;
1007
}
1008

    
1009
AVCodec *avcodec_find_encoder_by_name(const char *name)
1010
{
1011
    AVCodec *p;
1012
    if (!name)
1013
        return NULL;
1014
    p = first_avcodec;
1015
    while (p) {
1016
        if (p->encode != NULL && strcmp(name,p->name) == 0)
1017
            return p;
1018
        p = p->next;
1019
    }
1020
    return NULL;
1021
}
1022

    
1023
AVCodec *avcodec_find_decoder(enum CodecID id)
1024
{
1025
    AVCodec *p;
1026
    p = first_avcodec;
1027
    while (p) {
1028
        if (p->decode != NULL && p->id == id)
1029
            return p;
1030
        p = p->next;
1031
    }
1032
    return NULL;
1033
}
1034

    
1035
AVCodec *avcodec_find_decoder_by_name(const char *name)
1036
{
1037
    AVCodec *p;
1038
    if (!name)
1039
        return NULL;
1040
    p = first_avcodec;
1041
    while (p) {
1042
        if (p->decode != NULL && strcmp(name,p->name) == 0)
1043
            return p;
1044
        p = p->next;
1045
    }
1046
    return NULL;
1047
}
1048

    
1049
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1050
{
1051
    const char *codec_name;
1052
    AVCodec *p;
1053
    char buf1[32];
1054
    char channels_str[100];
1055
    int bitrate;
1056
    AVRational display_aspect_ratio;
1057

    
1058
    if (encode)
1059
        p = avcodec_find_encoder(enc->codec_id);
1060
    else
1061
        p = avcodec_find_decoder(enc->codec_id);
1062

    
1063
    if (p) {
1064
        codec_name = p->name;
1065
        if (!encode && enc->codec_id == CODEC_ID_MP3) {
1066
            if (enc->sub_id == 2)
1067
                codec_name = "mp2";
1068
            else if (enc->sub_id == 1)
1069
                codec_name = "mp1";
1070
        }
1071
    } else if (enc->codec_id == CODEC_ID_MPEG2TS) {
1072
        /* fake mpeg2 transport stream codec (currently not
1073
           registered) */
1074
        codec_name = "mpeg2ts";
1075
    } else if (enc->codec_name[0] != '\0') {
1076
        codec_name = enc->codec_name;
1077
    } else {
1078
        /* output avi tags */
1079
        if(   isprint(enc->codec_tag&0xFF) && isprint((enc->codec_tag>>8)&0xFF)
1080
           && isprint((enc->codec_tag>>16)&0xFF) && isprint((enc->codec_tag>>24)&0xFF)){
1081
            snprintf(buf1, sizeof(buf1), "%c%c%c%c / 0x%04X",
1082
                     enc->codec_tag & 0xff,
1083
                     (enc->codec_tag >> 8) & 0xff,
1084
                     (enc->codec_tag >> 16) & 0xff,
1085
                     (enc->codec_tag >> 24) & 0xff,
1086
                      enc->codec_tag);
1087
        } else {
1088
            snprintf(buf1, sizeof(buf1), "0x%04x", enc->codec_tag);
1089
        }
1090
        codec_name = buf1;
1091
    }
1092

    
1093
    switch(enc->codec_type) {
1094
    case CODEC_TYPE_VIDEO:
1095
        snprintf(buf, buf_size,
1096
                 "Video: %s%s",
1097
                 codec_name, enc->mb_decision ? " (hq)" : "");
1098
        if (enc->pix_fmt != PIX_FMT_NONE) {
1099
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1100
                     ", %s",
1101
                     avcodec_get_pix_fmt_name(enc->pix_fmt));
1102
        }
1103
        if (enc->width) {
1104
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1105
                     ", %dx%d",
1106
                     enc->width, enc->height);
1107
            if (enc->sample_aspect_ratio.num) {
1108
                av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
1109
                          enc->width*enc->sample_aspect_ratio.num,
1110
                          enc->height*enc->sample_aspect_ratio.den,
1111
                          1024*1024);
1112
                snprintf(buf + strlen(buf), buf_size - strlen(buf),
1113
                         " [PAR %d:%d DAR %d:%d]",
1114
                         enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
1115
                         display_aspect_ratio.num, display_aspect_ratio.den);
1116
            }
1117
            if(av_log_get_level() >= AV_LOG_DEBUG){
1118
                int g= ff_gcd(enc->time_base.num, enc->time_base.den);
1119
                snprintf(buf + strlen(buf), buf_size - strlen(buf),
1120
                     ", %d/%d",
1121
                     enc->time_base.num/g, enc->time_base.den/g);
1122
            }
1123
        }
1124
        if (encode) {
1125
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1126
                     ", q=%d-%d", enc->qmin, enc->qmax);
1127
        }
1128
        bitrate = enc->bit_rate;
1129
        break;
1130
    case CODEC_TYPE_AUDIO:
1131
        snprintf(buf, buf_size,
1132
                 "Audio: %s",
1133
                 codec_name);
1134
        switch (enc->channels) {
1135
            case 1:
1136
                strcpy(channels_str, "mono");
1137
                break;
1138
            case 2:
1139
                strcpy(channels_str, "stereo");
1140
                break;
1141
            case 6:
1142
                strcpy(channels_str, "5:1");
1143
                break;
1144
            default:
1145
                snprintf(channels_str, sizeof(channels_str), "%d channels", enc->channels);
1146
                break;
1147
        }
1148
        if (enc->sample_rate) {
1149
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1150
                     ", %d Hz, %s",
1151
                     enc->sample_rate,
1152
                     channels_str);
1153
        }
1154
        if (enc->sample_fmt != SAMPLE_FMT_NONE) {
1155
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1156
                     ", %s", avcodec_get_sample_fmt_name(enc->sample_fmt));
1157
        }
1158

    
1159
        /* for PCM codecs, compute bitrate directly */
1160
        switch(enc->codec_id) {
1161
        case CODEC_ID_PCM_F64BE:
1162
        case CODEC_ID_PCM_F64LE:
1163
            bitrate = enc->sample_rate * enc->channels * 64;
1164
            break;
1165
        case CODEC_ID_PCM_S32LE:
1166
        case CODEC_ID_PCM_S32BE:
1167
        case CODEC_ID_PCM_U32LE:
1168
        case CODEC_ID_PCM_U32BE:
1169
        case CODEC_ID_PCM_F32BE:
1170
        case CODEC_ID_PCM_F32LE:
1171
            bitrate = enc->sample_rate * enc->channels * 32;
1172
            break;
1173
        case CODEC_ID_PCM_S24LE:
1174
        case CODEC_ID_PCM_S24BE:
1175
        case CODEC_ID_PCM_U24LE:
1176
        case CODEC_ID_PCM_U24BE:
1177
        case CODEC_ID_PCM_S24DAUD:
1178
            bitrate = enc->sample_rate * enc->channels * 24;
1179
            break;
1180
        case CODEC_ID_PCM_S16LE:
1181
        case CODEC_ID_PCM_S16BE:
1182
        case CODEC_ID_PCM_S16LE_PLANAR:
1183
        case CODEC_ID_PCM_U16LE:
1184
        case CODEC_ID_PCM_U16BE:
1185
            bitrate = enc->sample_rate * enc->channels * 16;
1186
            break;
1187
        case CODEC_ID_PCM_S8:
1188
        case CODEC_ID_PCM_U8:
1189
        case CODEC_ID_PCM_ALAW:
1190
        case CODEC_ID_PCM_MULAW:
1191
        case CODEC_ID_PCM_ZORK:
1192
            bitrate = enc->sample_rate * enc->channels * 8;
1193
            break;
1194
        default:
1195
            bitrate = enc->bit_rate;
1196
            break;
1197
        }
1198
        break;
1199
    case CODEC_TYPE_DATA:
1200
        snprintf(buf, buf_size, "Data: %s", codec_name);
1201
        bitrate = enc->bit_rate;
1202
        break;
1203
    case CODEC_TYPE_SUBTITLE:
1204
        snprintf(buf, buf_size, "Subtitle: %s", codec_name);
1205
        bitrate = enc->bit_rate;
1206
        break;
1207
    case CODEC_TYPE_ATTACHMENT:
1208
        snprintf(buf, buf_size, "Attachment: %s", codec_name);
1209
        bitrate = enc->bit_rate;
1210
        break;
1211
    default:
1212
        snprintf(buf, buf_size, "Invalid Codec type %d", enc->codec_type);
1213
        return;
1214
    }
1215
    if (encode) {
1216
        if (enc->flags & CODEC_FLAG_PASS1)
1217
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1218
                     ", pass 1");
1219
        if (enc->flags & CODEC_FLAG_PASS2)
1220
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1221
                     ", pass 2");
1222
    }
1223
    if (bitrate != 0) {
1224
        snprintf(buf + strlen(buf), buf_size - strlen(buf),
1225
                 ", %d kb/s", bitrate / 1000);
1226
    }
1227
}
1228

    
1229
unsigned avcodec_version( void )
1230
{
1231
  return LIBAVCODEC_VERSION_INT;
1232
}
1233

    
1234
void avcodec_init(void)
1235
{
1236
    static int initialized = 0;
1237

    
1238
    if (initialized != 0)
1239
        return;
1240
    initialized = 1;
1241

    
1242
    dsputil_static_init();
1243
}
1244

    
1245
void avcodec_flush_buffers(AVCodecContext *avctx)
1246
{
1247
    if(avctx->codec->flush)
1248
        avctx->codec->flush(avctx);
1249
}
1250

    
1251
void avcodec_default_free_buffers(AVCodecContext *s){
1252
    int i, j;
1253

    
1254
    if(s->internal_buffer==NULL) return;
1255

    
1256
    for(i=0; i<INTERNAL_BUFFER_SIZE; i++){
1257
        InternalBuffer *buf= &((InternalBuffer*)s->internal_buffer)[i];
1258
        for(j=0; j<4; j++){
1259
            av_freep(&buf->base[j]);
1260
            buf->data[j]= NULL;
1261
        }
1262
    }
1263
    av_freep(&s->internal_buffer);
1264

    
1265
    s->internal_buffer_count=0;
1266
}
1267

    
1268
char av_get_pict_type_char(int pict_type){
1269
    switch(pict_type){
1270
    case FF_I_TYPE: return 'I';
1271
    case FF_P_TYPE: return 'P';
1272
    case FF_B_TYPE: return 'B';
1273
    case FF_S_TYPE: return 'S';
1274
    case FF_SI_TYPE:return 'i';
1275
    case FF_SP_TYPE:return 'p';
1276
    case FF_BI_TYPE:return 'b';
1277
    default:        return '?';
1278
    }
1279
}
1280

    
1281
int av_get_bits_per_sample(enum CodecID codec_id){
1282
    switch(codec_id){
1283
    case CODEC_ID_ADPCM_SBPRO_2:
1284
        return 2;
1285
    case CODEC_ID_ADPCM_SBPRO_3:
1286
        return 3;
1287
    case CODEC_ID_ADPCM_SBPRO_4:
1288
    case CODEC_ID_ADPCM_CT:
1289
        return 4;
1290
    case CODEC_ID_PCM_ALAW:
1291
    case CODEC_ID_PCM_MULAW:
1292
    case CODEC_ID_PCM_S8:
1293
    case CODEC_ID_PCM_U8:
1294
    case CODEC_ID_PCM_ZORK:
1295
        return 8;
1296
    case CODEC_ID_PCM_S16BE:
1297
    case CODEC_ID_PCM_S16LE:
1298
    case CODEC_ID_PCM_S16LE_PLANAR:
1299
    case CODEC_ID_PCM_U16BE:
1300
    case CODEC_ID_PCM_U16LE:
1301
        return 16;
1302
    case CODEC_ID_PCM_S24DAUD:
1303
    case CODEC_ID_PCM_S24BE:
1304
    case CODEC_ID_PCM_S24LE:
1305
    case CODEC_ID_PCM_U24BE:
1306
    case CODEC_ID_PCM_U24LE:
1307
        return 24;
1308
    case CODEC_ID_PCM_S32BE:
1309
    case CODEC_ID_PCM_S32LE:
1310
    case CODEC_ID_PCM_U32BE:
1311
    case CODEC_ID_PCM_U32LE:
1312
    case CODEC_ID_PCM_F32BE:
1313
    case CODEC_ID_PCM_F32LE:
1314
        return 32;
1315
    case CODEC_ID_PCM_F64BE:
1316
    case CODEC_ID_PCM_F64LE:
1317
        return 64;
1318
    default:
1319
        return 0;
1320
    }
1321
}
1322

    
1323
int av_get_bits_per_sample_format(enum SampleFormat sample_fmt) {
1324
    switch (sample_fmt) {
1325
    case SAMPLE_FMT_U8:
1326
        return 8;
1327
    case SAMPLE_FMT_S16:
1328
        return 16;
1329
    case SAMPLE_FMT_S32:
1330
    case SAMPLE_FMT_FLT:
1331
        return 32;
1332
    case SAMPLE_FMT_DBL:
1333
        return 64;
1334
    default:
1335
        return 0;
1336
    }
1337
}
1338

    
1339
#if !defined(HAVE_THREADS)
1340
int avcodec_thread_init(AVCodecContext *s, int thread_count){
1341
    return -1;
1342
}
1343
#endif
1344

    
1345
unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1346
{
1347
    unsigned int n = 0;
1348

    
1349
    while(v >= 0xff) {
1350
        *s++ = 0xff;
1351
        v -= 0xff;
1352
        n++;
1353
    }
1354
    *s = v;
1355
    n++;
1356
    return n;
1357
}
1358

    
1359
/* Wrapper to work around the lack of mkstemp() on mingw/cygin.
1360
 * Also, tries to create file in /tmp first, if possible.
1361
 * *prefix can be a character constant; *filename will be allocated internally.
1362
 * Returns file descriptor of opened file (or -1 on error)
1363
 * and opened file name in **filename. */
1364
int av_tempfile(char *prefix, char **filename) {
1365
    int fd=-1;
1366
#if !defined(HAVE_MKSTEMP)
1367
    *filename = tempnam(".", prefix);
1368
#else
1369
    size_t len = strlen(prefix) + 12; /* room for "/tmp/" and "XXXXXX\0" */
1370
    *filename = av_malloc(len);
1371
#endif
1372
    /* -----common section-----*/
1373
    if (*filename == NULL) {
1374
        av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot allocate file name\n");
1375
        return -1;
1376
    }
1377
#if !defined(HAVE_MKSTEMP)
1378
    fd = open(*filename, O_RDWR | O_BINARY | O_CREAT, 0444);
1379
#else
1380
    snprintf(*filename, len, "/tmp/%sXXXXXX", prefix);
1381
    fd = mkstemp(*filename);
1382
    if (fd < 0) {
1383
        snprintf(*filename, len, "./%sXXXXXX", prefix);
1384
        fd = mkstemp(*filename);
1385
    }
1386
#endif
1387
    /* -----common section-----*/
1388
    if (fd < 0) {
1389
        av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot open temporary file %s\n", *filename);
1390
        return -1;
1391
    }
1392
    return fd; /* success */
1393
}
1394

    
1395
typedef struct {
1396
    const char *abbr;
1397
    int width, height;
1398
} VideoFrameSizeAbbr;
1399

    
1400
typedef struct {
1401
    const char *abbr;
1402
    int rate_num, rate_den;
1403
} VideoFrameRateAbbr;
1404

    
1405
static const VideoFrameSizeAbbr video_frame_size_abbrs[] = {
1406
    { "ntsc",      720, 480 },
1407
    { "pal",       720, 576 },
1408
    { "qntsc",     352, 240 }, /* VCD compliant NTSC */
1409
    { "qpal",      352, 288 }, /* VCD compliant PAL */
1410
    { "sntsc",     640, 480 }, /* square pixel NTSC */
1411
    { "spal",      768, 576 }, /* square pixel PAL */
1412
    { "film",      352, 240 },
1413
    { "ntsc-film", 352, 240 },
1414
    { "sqcif",     128,  96 },
1415
    { "qcif",      176, 144 },
1416
    { "cif",       352, 288 },
1417
    { "4cif",      704, 576 },
1418
    { "qqvga",     160, 120 },
1419
    { "qvga",      320, 240 },
1420
    { "vga",       640, 480 },
1421
    { "svga",      800, 600 },
1422
    { "xga",      1024, 768 },
1423
    { "uxga",     1600,1200 },
1424
    { "qxga",     2048,1536 },
1425
    { "sxga",     1280,1024 },
1426
    { "qsxga",    2560,2048 },
1427
    { "hsxga",    5120,4096 },
1428
    { "wvga",      852, 480 },
1429
    { "wxga",     1366, 768 },
1430
    { "wsxga",    1600,1024 },
1431
    { "wuxga",    1920,1200 },
1432
    { "woxga",    2560,1600 },
1433
    { "wqsxga",   3200,2048 },
1434
    { "wquxga",   3840,2400 },
1435
    { "whsxga",   6400,4096 },
1436
    { "whuxga",   7680,4800 },
1437
    { "cga",       320, 200 },
1438
    { "ega",       640, 350 },
1439
    { "hd480",     852, 480 },
1440
    { "hd720",    1280, 720 },
1441
    { "hd1080",   1920,1080 },
1442
};
1443

    
1444
static const VideoFrameRateAbbr video_frame_rate_abbrs[]= {
1445
    { "ntsc",      30000, 1001 },
1446
    { "pal",          25,    1 },
1447
    { "qntsc",     30000, 1001 }, /* VCD compliant NTSC */
1448
    { "qpal",         25,    1 }, /* VCD compliant PAL */
1449
    { "sntsc",     30000, 1001 }, /* square pixel NTSC */
1450
    { "spal",         25,    1 }, /* square pixel PAL */
1451
    { "film",         24,    1 },
1452
    { "ntsc-film", 24000, 1001 },
1453
};
1454

    
1455
int av_parse_video_frame_size(int *width_ptr, int *height_ptr, const char *str)
1456
{
1457
    int i;
1458
    int n = sizeof(video_frame_size_abbrs) / sizeof(VideoFrameSizeAbbr);
1459
    const char *p;
1460
    int frame_width = 0, frame_height = 0;
1461

    
1462
    for(i=0;i<n;i++) {
1463
        if (!strcmp(video_frame_size_abbrs[i].abbr, str)) {
1464
            frame_width = video_frame_size_abbrs[i].width;
1465
            frame_height = video_frame_size_abbrs[i].height;
1466
            break;
1467
        }
1468
    }
1469
    if (i == n) {
1470
        p = str;
1471
        frame_width = strtol(p, (char **)&p, 10);
1472
        if (*p)
1473
            p++;
1474
        frame_height = strtol(p, (char **)&p, 10);
1475
    }
1476
    if (frame_width <= 0 || frame_height <= 0)
1477
        return -1;
1478
    *width_ptr = frame_width;
1479
    *height_ptr = frame_height;
1480
    return 0;
1481
}
1482

    
1483
int av_parse_video_frame_rate(AVRational *frame_rate, const char *arg)
1484
{
1485
    int i;
1486
    int n = sizeof(video_frame_rate_abbrs) / sizeof(VideoFrameRateAbbr);
1487
    char* cp;
1488

    
1489
    /* First, we check our abbreviation table */
1490
    for (i = 0; i < n; ++i)
1491
         if (!strcmp(video_frame_rate_abbrs[i].abbr, arg)) {
1492
             frame_rate->num = video_frame_rate_abbrs[i].rate_num;
1493
             frame_rate->den = video_frame_rate_abbrs[i].rate_den;
1494
             return 0;
1495
         }
1496

    
1497
    /* Then, we try to parse it as fraction */
1498
    cp = strchr(arg, '/');
1499
    if (!cp)
1500
        cp = strchr(arg, ':');
1501
    if (cp) {
1502
        char* cpp;
1503
        frame_rate->num = strtol(arg, &cpp, 10);
1504
        if (cpp != arg || cpp == cp)
1505
            frame_rate->den = strtol(cp+1, &cpp, 10);
1506
        else
1507
           frame_rate->num = 0;
1508
    }
1509
    else {
1510
        /* Finally we give up and parse it as double */
1511
        AVRational time_base = av_d2q(strtod(arg, 0), 1001000);
1512
        frame_rate->den = time_base.den;
1513
        frame_rate->num = time_base.num;
1514
    }
1515
    if (!frame_rate->num || !frame_rate->den)
1516
        return -1;
1517
    else
1518
        return 0;
1519
}
1520

    
1521
void av_log_missing_feature(void *avc, const char *feature, int want_sample)
1522
{
1523
    av_log(avc, AV_LOG_WARNING, "%s not implemented. Update your FFmpeg "
1524
            "version to the newest one from SVN. If the problem still "
1525
            "occurs, it means that your file has a feature which has not "
1526
            "been implemented.", feature);
1527
    if(want_sample)
1528
        av_log(avc, AV_LOG_WARNING, " If you want to help, upload a sample "
1529
                "of this file to ftp://upload.mplayerhq.hu/MPlayer/incoming/ "
1530
                "and contact the FFmpeg-devel mailing list.");
1531
    av_log(avc, AV_LOG_WARNING, "\n");
1532
}