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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
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with FFmpeg; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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 */
22

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

    
28
/* needed for mkstemp() */
29
#define _XOPEN_SOURCE 500
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"
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#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

    
74
    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
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
}
174

    
175
int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h){
176
    if((int)w>0 && (int)h>0 && (w+128)*(uint64_t)(h+128) < INT_MAX/4)
177
        return 0;
178

    
179
    av_log(av_log_ctx, AV_LOG_ERROR, "picture size invalid (%ux%u)\n", w, h);
180
    return -1;
181
}
182

    
183
int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic){
184
    int i;
185
    int w= s->width;
186
    int h= s->height;
187
    InternalBuffer *buf;
188
    int *picture_number;
189

    
190
    if(pic->data[0]!=NULL) {
191
        av_log(s, AV_LOG_ERROR, "pic->data[0]!=NULL in avcodec_default_get_buffer\n");
192
        return -1;
193
    }
194
    if(s->internal_buffer_count >= INTERNAL_BUFFER_SIZE) {
195
        av_log(s, AV_LOG_ERROR, "internal_buffer_count overflow (missing release_buffer?)\n");
196
        return -1;
197
    }
198

    
199
    if(avcodec_check_dimensions(s,w,h))
200
        return -1;
201

    
202
    if(s->internal_buffer==NULL){
203
        s->internal_buffer= av_mallocz((INTERNAL_BUFFER_SIZE+1)*sizeof(InternalBuffer));
204
    }
205
#if 0
206
    s->internal_buffer= av_fast_realloc(
207
        s->internal_buffer,
208
        &s->internal_buffer_size,
209
        sizeof(InternalBuffer)*FFMAX(99,  s->internal_buffer_count+1)/*FIXME*/
210
        );
211
#endif
212

    
213
    buf= &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count];
214
    picture_number= &(((InternalBuffer*)s->internal_buffer)[INTERNAL_BUFFER_SIZE]).last_pic_num; //FIXME ugly hack
215
    (*picture_number)++;
216

    
217
    if(buf->base[0] && (buf->width != w || buf->height != h || buf->pix_fmt != s->pix_fmt)){
218
        for(i=0; i<4; i++){
219
            av_freep(&buf->base[i]);
220
            buf->data[i]= NULL;
221
        }
222
    }
223

    
224
    if(buf->base[0]){
225
        pic->age= *picture_number - buf->last_pic_num;
226
        buf->last_pic_num= *picture_number;
227
    }else{
228
        int h_chroma_shift, v_chroma_shift;
229
        int size[4] = {0};
230
        int tmpsize;
231
        AVPicture picture;
232

    
233
        avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
234

    
235
        avcodec_align_dimensions(s, &w, &h);
236

    
237
        if(!(s->flags&CODEC_FLAG_EMU_EDGE)){
238
            w+= EDGE_WIDTH*2;
239
            h+= EDGE_WIDTH*2;
240
        }
241
        avcodec_align_dimensions(s, &w, &h);
242

    
243
        ff_fill_linesize(&picture, s->pix_fmt, w);
244

    
245
        for (i=0; i<4; i++)
246
            picture.linesize[i] = ALIGN(picture.linesize[i], STRIDE_ALIGN);
247

    
248
        tmpsize = ff_fill_pointer(&picture, NULL, s->pix_fmt, h);
249

    
250
        for (i=0; i<3 && picture.data[i+1]; i++)
251
            size[i] = picture.data[i+1] - picture.data[i];
252
        size[i] = tmpsize - (picture.data[i] - picture.data[0]);
253

    
254
        buf->last_pic_num= -256*256*256*64;
255
        memset(buf->base, 0, sizeof(buf->base));
256
        memset(buf->data, 0, sizeof(buf->data));
257

    
258
        for(i=0; i<4 && size[i]; i++){
259
            const int h_shift= i==0 ? 0 : h_chroma_shift;
260
            const int v_shift= i==0 ? 0 : v_chroma_shift;
261

    
262
            buf->linesize[i]= picture.linesize[i];
263

    
264
            buf->base[i]= av_malloc(size[i]+16); //FIXME 16
265
            if(buf->base[i]==NULL) return -1;
266
            memset(buf->base[i], 128, size[i]);
267

    
268
            // no edge if EDEG EMU or not planar YUV, we check for PAL8 redundantly to protect against a exploitable bug regression ...
269
            if((s->flags&CODEC_FLAG_EMU_EDGE) || (s->pix_fmt == PIX_FMT_PAL8) || !size[2])
270
                buf->data[i] = buf->base[i];
271
            else
272
                buf->data[i] = buf->base[i] + ALIGN((buf->linesize[i]*EDGE_WIDTH>>v_shift) + (EDGE_WIDTH>>h_shift), STRIDE_ALIGN);
273
        }
274
        buf->width  = s->width;
275
        buf->height = s->height;
276
        buf->pix_fmt= s->pix_fmt;
277
        pic->age= 256*256*256*64;
278
    }
279
    pic->type= FF_BUFFER_TYPE_INTERNAL;
280

    
281
    for(i=0; i<4; i++){
282
        pic->base[i]= buf->base[i];
283
        pic->data[i]= buf->data[i];
284
        pic->linesize[i]= buf->linesize[i];
285
    }
286
    s->internal_buffer_count++;
287

    
288
    pic->reordered_opaque= s->reordered_opaque;
289

    
290
    if(s->debug&FF_DEBUG_BUFFERS)
291
        av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p, %d buffers used\n", pic, s->internal_buffer_count);
292

    
293
    return 0;
294
}
295

    
296
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic){
297
    int i;
298
    InternalBuffer *buf, *last;
299

    
300
    assert(pic->type==FF_BUFFER_TYPE_INTERNAL);
301
    assert(s->internal_buffer_count);
302

    
303
    buf = NULL; /* avoids warning */
304
    for(i=0; i<s->internal_buffer_count; i++){ //just 3-5 checks so is not worth to optimize
305
        buf= &((InternalBuffer*)s->internal_buffer)[i];
306
        if(buf->data[0] == pic->data[0])
307
            break;
308
    }
309
    assert(i < s->internal_buffer_count);
310
    s->internal_buffer_count--;
311
    last = &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count];
312

    
313
    FFSWAP(InternalBuffer, *buf, *last);
314

    
315
    for(i=0; i<4; i++){
316
        pic->data[i]=NULL;
317
//        pic->base[i]=NULL;
318
    }
319
//printf("R%X\n", pic->opaque);
320

    
321
    if(s->debug&FF_DEBUG_BUFFERS)
322
        av_log(s, AV_LOG_DEBUG, "default_release_buffer called on pic %p, %d buffers used\n", pic, s->internal_buffer_count);
323
}
324

    
325
int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic){
326
    AVFrame temp_pic;
327
    int i;
328

    
329
    /* If no picture return a new buffer */
330
    if(pic->data[0] == NULL) {
331
        /* We will copy from buffer, so must be readable */
332
        pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
333
        return s->get_buffer(s, pic);
334
    }
335

    
336
    /* If internal buffer type return the same buffer */
337
    if(pic->type == FF_BUFFER_TYPE_INTERNAL)
338
        return 0;
339

    
340
    /*
341
     * Not internal type and reget_buffer not overridden, emulate cr buffer
342
     */
343
    temp_pic = *pic;
344
    for(i = 0; i < 4; i++)
345
        pic->data[i] = pic->base[i] = NULL;
346
    pic->opaque = NULL;
347
    /* Allocate new frame */
348
    if (s->get_buffer(s, pic))
349
        return -1;
350
    /* Copy image data from old buffer to new buffer */
351
    av_picture_copy((AVPicture*)pic, (AVPicture*)&temp_pic, s->pix_fmt, s->width,
352
             s->height);
353
    s->release_buffer(s, &temp_pic); // Release old frame
354
    return 0;
355
}
356

    
357
int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count){
358
    int i;
359

    
360
    for(i=0; i<count; i++){
361
        int r= func(c, arg[i]);
362
        if(ret) ret[i]= r;
363
    }
364
    return 0;
365
}
366

    
367
enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt){
368
    return fmt[0];
369
}
370

    
371
static const char* context_to_name(void* ptr) {
372
    AVCodecContext *avc= ptr;
373

    
374
    if(avc && avc->codec && avc->codec->name)
375
        return avc->codec->name;
376
    else
377
        return "NULL";
378
}
379

    
380
#define OFFSET(x) offsetof(AVCodecContext,x)
381
#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
382
//these names are too long to be readable
383
#define V AV_OPT_FLAG_VIDEO_PARAM
384
#define A AV_OPT_FLAG_AUDIO_PARAM
385
#define S AV_OPT_FLAG_SUBTITLE_PARAM
386
#define E AV_OPT_FLAG_ENCODING_PARAM
387
#define D AV_OPT_FLAG_DECODING_PARAM
388

    
389
#define AV_CODEC_DEFAULT_BITRATE 200*1000
390

    
391
static const AVOption options[]={
392
{"b", "set bitrate (in bits/s)", OFFSET(bit_rate), FF_OPT_TYPE_INT, AV_CODEC_DEFAULT_BITRATE, INT_MIN, INT_MAX, V|E},
393
{"ab", "set bitrate (in bits/s)", OFFSET(bit_rate), FF_OPT_TYPE_INT, 64*1000, INT_MIN, INT_MAX, A|E},
394
{"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},
395
{"flags", NULL, OFFSET(flags), FF_OPT_TYPE_FLAGS, DEFAULT, 0, UINT_MAX, V|A|E|D, "flags"},
396
{"mv4", "use four motion vector by macroblock (mpeg4)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_4MV, INT_MIN, INT_MAX, V|E, "flags"},
397
{"obmc", "use overlapped block motion compensation (h263+)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_OBMC, INT_MIN, INT_MAX, V|E, "flags"},
398
{"qpel", "use 1/4 pel motion compensation", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_QPEL, INT_MIN, INT_MAX, V|E, "flags"},
399
{"loop", "use loop filter", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_LOOP_FILTER, INT_MIN, INT_MAX, V|E, "flags"},
400
{"qscale", "use fixed qscale", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_QSCALE, INT_MIN, INT_MAX, 0, "flags"},
401
{"gmc", "use gmc", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_GMC, INT_MIN, INT_MAX, V|E, "flags"},
402
{"mv0", "always try a mb with mv=<0,0>", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_MV0, INT_MIN, INT_MAX, V|E, "flags"},
403
{"part", "use data partitioning", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PART, INT_MIN, INT_MAX, V|E, "flags"},
404
{"input_preserved", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG_INPUT_PRESERVED, INT_MIN, INT_MAX, 0, "flags"},
405
{"pass1", "use internal 2pass ratecontrol in first  pass mode", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PASS1, INT_MIN, INT_MAX, 0, "flags"},
406
{"pass2", "use internal 2pass ratecontrol in second pass mode", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PASS2, INT_MIN, INT_MAX, 0, "flags"},
407
{"extern_huff", "use external huffman table (for mjpeg)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_EXTERN_HUFF, INT_MIN, INT_MAX, 0, "flags"},
408
{"gray", "only decode/encode grayscale", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_GRAY, INT_MIN, INT_MAX, V|E|D, "flags"},
409
{"emu_edge", "don't draw edges", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_EMU_EDGE, INT_MIN, INT_MAX, 0, "flags"},
410
{"psnr", "error[?] variables will be set during encoding", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PSNR, INT_MIN, INT_MAX, V|E, "flags"},
411
{"truncated", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG_TRUNCATED, INT_MIN, INT_MAX, 0, "flags"},
412
{"naq", "normalize adaptive quantization", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_NORMALIZE_AQP, INT_MIN, INT_MAX, V|E, "flags"},
413
{"ildct", "use interlaced dct", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_INTERLACED_DCT, INT_MIN, INT_MAX, V|E, "flags"},
414
{"low_delay", "force low delay", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_LOW_DELAY, INT_MIN, INT_MAX, V|D|E, "flags"},
415
{"alt", "enable alternate scantable (mpeg2/mpeg4)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_ALT_SCAN, INT_MIN, INT_MAX, V|E, "flags"},
416
{"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"},
417
{"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"},
418
{"aic", "h263 advanced intra coding / mpeg4 ac prediction", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_AC_PRED, INT_MIN, INT_MAX, V|E, "flags"},
419
{"umv", "use unlimited motion vectors", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_H263P_UMV, INT_MIN, INT_MAX, V|E, "flags"},
420
{"cbp", "use rate distortion optimization for cbp", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_CBP_RD, INT_MIN, INT_MAX, V|E, "flags"},
421
{"qprd", "use rate distortion optimization for qp selection", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_QP_RD, INT_MIN, INT_MAX, V|E, "flags"},
422
{"aiv", "h263 alternative inter vlc", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_H263P_AIV, INT_MIN, INT_MAX, V|E, "flags"},
423
{"slice", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG_H263P_SLICE_STRUCT, INT_MIN, INT_MAX, V|E, "flags"},
424
{"ilme", "interlaced motion estimation", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_INTERLACED_ME, INT_MIN, INT_MAX, V|E, "flags"},
425
{"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"},
426
{"cgop", "closed gop", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_CLOSED_GOP, INT_MIN, INT_MAX, V|E, "flags"},
427
{"fast", "allow non spec compliant speedup tricks", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_FAST, INT_MIN, INT_MAX, V|E, "flags2"},
428
{"sgop", "strictly enforce gop size", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_STRICT_GOP, INT_MIN, INT_MAX, V|E, "flags2"},
429
{"noout", "skip bitstream encoding", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_NO_OUTPUT, INT_MIN, INT_MAX, V|E, "flags2"},
430
{"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"},
431
{"sub_id", NULL, OFFSET(sub_id), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
432
{"me_method", "set motion estimation method", OFFSET(me_method), FF_OPT_TYPE_INT, ME_EPZS, INT_MIN, INT_MAX, V|E, "me_method"},
433
{"zero", "zero motion estimation (fastest)", 0, FF_OPT_TYPE_CONST, ME_ZERO, INT_MIN, INT_MAX, V|E, "me_method" },
434
{"full", "full motion estimation (slowest)", 0, FF_OPT_TYPE_CONST, ME_FULL, INT_MIN, INT_MAX, V|E, "me_method" },
435
{"epzs", "EPZS motion estimation (default)", 0, FF_OPT_TYPE_CONST, ME_EPZS, INT_MIN, INT_MAX, V|E, "me_method" },
436
{"esa", "esa motion estimation (alias for full)", 0, FF_OPT_TYPE_CONST, ME_FULL, INT_MIN, INT_MAX, V|E, "me_method" },
437
{"tesa", "tesa motion estimation", 0, FF_OPT_TYPE_CONST, ME_TESA, INT_MIN, INT_MAX, V|E, "me_method" },
438
{"dia", "dia motion estimation (alias for epzs)", 0, FF_OPT_TYPE_CONST, ME_EPZS, INT_MIN, INT_MAX, V|E, "me_method" },
439
{"log", "log motion estimation", 0, FF_OPT_TYPE_CONST, ME_LOG, INT_MIN, INT_MAX, V|E, "me_method" },
440
{"phods", "phods motion estimation", 0, FF_OPT_TYPE_CONST, ME_PHODS, INT_MIN, INT_MAX, V|E, "me_method" },
441
{"x1", "X1 motion estimation", 0, FF_OPT_TYPE_CONST, ME_X1, INT_MIN, INT_MAX, V|E, "me_method" },
442
{"hex", "hex motion estimation", 0, FF_OPT_TYPE_CONST, ME_HEX, INT_MIN, INT_MAX, V|E, "me_method" },
443
{"umh", "umh motion estimation", 0, FF_OPT_TYPE_CONST, ME_UMH, INT_MIN, INT_MAX, V|E, "me_method" },
444
{"iter", "iter motion estimation", 0, FF_OPT_TYPE_CONST, ME_ITER, INT_MIN, INT_MAX, V|E, "me_method" },
445
{"extradata_size", NULL, OFFSET(extradata_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
446
{"time_base", NULL, OFFSET(time_base), FF_OPT_TYPE_RATIONAL, DEFAULT, INT_MIN, INT_MAX},
447
{"g", "set the group of picture size", OFFSET(gop_size), FF_OPT_TYPE_INT, 12, INT_MIN, INT_MAX, V|E},
448
{"rate_emu", "frame rate emulation", OFFSET(rate_emu), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
449
{"ar", "set audio sampling rate (in Hz)", OFFSET(sample_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
450
{"ac", "set number of audio channels", OFFSET(channels), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
451
{"cutoff", "set cutoff bandwidth", OFFSET(cutoff), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, A|E},
452
{"frame_size", NULL, OFFSET(frame_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, A|E},
453
{"frame_number", NULL, OFFSET(frame_number), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
454
{"real_pict_num", NULL, OFFSET(real_pict_num), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
455
{"delay", NULL, OFFSET(delay), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
456
{"qcomp", "video quantizer scale compression (VBR)", OFFSET(qcompress), FF_OPT_TYPE_FLOAT, 0.5, -FLT_MAX, FLT_MAX, V|E},
457
{"qblur", "video quantizer scale blur (VBR)", OFFSET(qblur), FF_OPT_TYPE_FLOAT, 0.5, 0, FLT_MAX, V|E},
458
{"qmin", "min video quantizer scale (VBR)", OFFSET(qmin), FF_OPT_TYPE_INT, 2, 1, 51, V|E},
459
{"qmax", "max video quantizer scale (VBR)", OFFSET(qmax), FF_OPT_TYPE_INT, 31, 1, 51, V|E},
460
{"qdiff", "max difference between the quantizer scale (VBR)", OFFSET(max_qdiff), FF_OPT_TYPE_INT, 3, INT_MIN, INT_MAX, V|E},
461
{"bf", "use 'frames' B frames", OFFSET(max_b_frames), FF_OPT_TYPE_INT, DEFAULT, 0, FF_MAX_B_FRAMES, V|E},
462
{"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},
463
{"rc_strategy", "ratecontrol method", OFFSET(rc_strategy), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
464
{"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},
465
{"hurry_up", NULL, OFFSET(hurry_up), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D},
466
{"ps", "rtp payload size in bits", OFFSET(rtp_payload_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
467
{"mv_bits", NULL, OFFSET(mv_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
468
{"header_bits", NULL, OFFSET(header_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
469
{"i_tex_bits", NULL, OFFSET(i_tex_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
470
{"p_tex_bits", NULL, OFFSET(p_tex_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
471
{"i_count", NULL, OFFSET(i_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
472
{"p_count", NULL, OFFSET(p_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
473
{"skip_count", NULL, OFFSET(skip_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
474
{"misc_bits", NULL, OFFSET(misc_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
475
{"frame_bits", NULL, OFFSET(frame_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
476
{"codec_tag", NULL, OFFSET(codec_tag), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
477
{"bug", "workaround not auto detected encoder bugs", OFFSET(workaround_bugs), FF_OPT_TYPE_FLAGS, FF_BUG_AUTODETECT, INT_MIN, INT_MAX, V|D, "bug"},
478
{"autodetect", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_AUTODETECT, INT_MIN, INT_MAX, V|D, "bug"},
479
{"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"},
480
{"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"},
481
{"ump4", "(autodetected if fourcc==UMP4)", 0, FF_OPT_TYPE_CONST, FF_BUG_UMP4, INT_MIN, INT_MAX, V|D, "bug"},
482
{"no_padding", "padding bug (autodetected)", 0, FF_OPT_TYPE_CONST, FF_BUG_NO_PADDING, INT_MIN, INT_MAX, V|D, "bug"},
483
{"amv", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_AMV, INT_MIN, INT_MAX, V|D, "bug"},
484
{"ac_vlc", "illegal vlc bug (autodetected per fourcc)", 0, FF_OPT_TYPE_CONST, FF_BUG_AC_VLC, INT_MIN, INT_MAX, V|D, "bug"},
485
{"qpel_chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_QPEL_CHROMA, INT_MIN, INT_MAX, V|D, "bug"},
486
{"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"},
487
{"qpel_chroma2", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_QPEL_CHROMA2, INT_MIN, INT_MAX, V|D, "bug"},
488
{"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"},
489
{"edge", "edge padding bug (autodetected per fourcc/version)", 0, FF_OPT_TYPE_CONST, FF_BUG_EDGE, INT_MIN, INT_MAX, V|D, "bug"},
490
{"hpel_chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_HPEL_CHROMA, INT_MIN, INT_MAX, V|D, "bug"},
491
{"dc_clip", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_DC_CLIP, INT_MIN, INT_MAX, V|D, "bug"},
492
{"ms", "workaround various bugs in microsofts broken decoders", 0, FF_OPT_TYPE_CONST, FF_BUG_MS, INT_MIN, INT_MAX, V|D, "bug"},
493
{"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},
494
{"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},
495
{"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"},
496
{"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"},
497
{"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"},
498
{"normal", NULL, 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_NORMAL, INT_MIN, INT_MAX, V|D|E, "strict"},
499
{"inofficial", "allow inofficial extensions", 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_INOFFICIAL, INT_MIN, INT_MAX, V|D|E, "strict"},
500
{"experimental", "allow non standardized experimental things", 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_EXPERIMENTAL, INT_MIN, INT_MAX, V|D|E, "strict"},
501
{"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},
502
{"er", "set error detection aggressivity", OFFSET(error_recognition), FF_OPT_TYPE_INT, FF_ER_CAREFUL, INT_MIN, INT_MAX, A|V|D, "er"},
503
{"careful", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_CAREFUL, INT_MIN, INT_MAX, V|D, "er"},
504
{"compliant", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_COMPLIANT, INT_MIN, INT_MAX, V|D, "er"},
505
{"aggressive", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_AGGRESSIVE, INT_MIN, INT_MAX, V|D, "er"},
506
{"very_aggressive", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_VERY_AGGRESSIVE, INT_MIN, INT_MAX, V|D, "er"},
507
{"has_b_frames", NULL, OFFSET(has_b_frames), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
508
{"block_align", NULL, OFFSET(block_align), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
509
{"parse_only", NULL, OFFSET(parse_only), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
510
{"mpeg_quant", "use MPEG quantizers instead of H.263", OFFSET(mpeg_quant), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
511
{"stats_out", NULL, OFFSET(stats_out), FF_OPT_TYPE_STRING, DEFAULT, CHAR_MIN, CHAR_MAX},
512
{"stats_in", NULL, OFFSET(stats_in), FF_OPT_TYPE_STRING, DEFAULT, CHAR_MIN, CHAR_MAX},
513
{"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},
514
{"rc_qmod_amp", "experimental quantizer modulation", OFFSET(rc_qmod_amp), FF_OPT_TYPE_FLOAT, DEFAULT, -FLT_MAX, FLT_MAX, V|E},
515
{"rc_qmod_freq", "experimental quantizer modulation", OFFSET(rc_qmod_freq), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
516
{"rc_override_count", NULL, OFFSET(rc_override_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
517
{"rc_eq", "set rate control equation", OFFSET(rc_eq), FF_OPT_TYPE_STRING, DEFAULT, CHAR_MIN, CHAR_MAX, V|E},
518
{"maxrate", "set max video bitrate tolerance (in bits/s)", OFFSET(rc_max_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
519
{"minrate", "set min video bitrate tolerance (in bits/s)", OFFSET(rc_min_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
520
{"bufsize", "set ratecontrol buffer size (in bits)", OFFSET(rc_buffer_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, A|V|E},
521
{"rc_buf_aggressivity", "currently useless", OFFSET(rc_buffer_aggressivity), FF_OPT_TYPE_FLOAT, 1.0, -FLT_MAX, FLT_MAX, V|E},
522
{"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},
523
{"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},
524
{"rc_init_cplx", "initial complexity for 1-pass encoding", OFFSET(rc_initial_cplx), FF_OPT_TYPE_FLOAT, DEFAULT, -FLT_MAX, FLT_MAX, V|E},
525
{"dct", "DCT algorithm", OFFSET(dct_algo), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, V|E, "dct"},
526
{"auto", "autoselect a good one (default)", 0, FF_OPT_TYPE_CONST, FF_DCT_AUTO, INT_MIN, INT_MAX, V|E, "dct"},
527
{"fastint", "fast integer", 0, FF_OPT_TYPE_CONST, FF_DCT_FASTINT, INT_MIN, INT_MAX, V|E, "dct"},
528
{"int", "accurate integer", 0, FF_OPT_TYPE_CONST, FF_DCT_INT, INT_MIN, INT_MAX, V|E, "dct"},
529
{"mmx", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_MMX, INT_MIN, INT_MAX, V|E, "dct"},
530
{"mlib", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_MLIB, INT_MIN, INT_MAX, V|E, "dct"},
531
{"altivec", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_ALTIVEC, INT_MIN, INT_MAX, V|E, "dct"},
532
{"faan", "floating point AAN DCT", 0, FF_OPT_TYPE_CONST, FF_DCT_FAAN, INT_MIN, INT_MAX, V|E, "dct"},
533
{"lumi_mask", "compresses bright areas stronger than medium ones", OFFSET(lumi_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
534
{"tcplx_mask", "temporal complexity masking", OFFSET(temporal_cplx_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
535
{"scplx_mask", "spatial complexity masking", OFFSET(spatial_cplx_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
536
{"p_mask", "inter masking", OFFSET(p_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
537
{"dark_mask", "compresses dark areas stronger than medium ones", OFFSET(dark_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
538
{"idct", "select IDCT implementation", OFFSET(idct_algo), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, V|E|D, "idct"},
539
{"auto", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_AUTO, INT_MIN, INT_MAX, V|E|D, "idct"},
540
{"int", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_INT, INT_MIN, INT_MAX, V|E|D, "idct"},
541
{"simple", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLE, INT_MIN, INT_MAX, V|E|D, "idct"},
542
{"simplemmx", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEMMX, INT_MIN, INT_MAX, V|E|D, "idct"},
543
{"libmpeg2mmx", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_LIBMPEG2MMX, INT_MIN, INT_MAX, V|E|D, "idct"},
544
{"ps2", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_PS2, INT_MIN, INT_MAX, V|E|D, "idct"},
545
{"mlib", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_MLIB, INT_MIN, INT_MAX, V|E|D, "idct"},
546
{"arm", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_ARM, INT_MIN, INT_MAX, V|E|D, "idct"},
547
{"altivec", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_ALTIVEC, INT_MIN, INT_MAX, V|E|D, "idct"},
548
{"sh4", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SH4, INT_MIN, INT_MAX, V|E|D, "idct"},
549
{"simplearm", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEARM, INT_MIN, INT_MAX, V|E|D, "idct"},
550
{"simplearmv5te", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEARMV5TE, INT_MIN, INT_MAX, V|E|D, "idct"},
551
{"simplearmv6", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEARMV6, INT_MIN, INT_MAX, V|E|D, "idct"},
552
{"h264", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_H264, INT_MIN, INT_MAX, V|E|D, "idct"},
553
{"vp3", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_VP3, INT_MIN, INT_MAX, V|E|D, "idct"},
554
{"ipp", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_IPP, INT_MIN, INT_MAX, V|E|D, "idct"},
555
{"xvidmmx", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_XVIDMMX, INT_MIN, INT_MAX, V|E|D, "idct"},
556
{"faani", "floating point AAN IDCT", 0, FF_OPT_TYPE_CONST, FF_IDCT_FAAN, INT_MIN, INT_MAX, V|D|E, "idct"},
557
{"slice_count", NULL, OFFSET(slice_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
558
{"ec", "set error concealment strategy", OFFSET(error_concealment), FF_OPT_TYPE_FLAGS, 3, INT_MIN, INT_MAX, V|D, "ec"},
559
{"guess_mvs", "iterative motion vector (MV) search (slow)", 0, FF_OPT_TYPE_CONST, FF_EC_GUESS_MVS, INT_MIN, INT_MAX, V|D, "ec"},
560
{"deblock", "use strong deblock filter for damaged MBs", 0, FF_OPT_TYPE_CONST, FF_EC_DEBLOCK, INT_MIN, INT_MAX, V|D, "ec"},
561
{"bits_per_coded_sample", NULL, OFFSET(bits_per_coded_sample), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
562
{"pred", "prediction method", OFFSET(prediction_method), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "pred"},
563
{"left", NULL, 0, FF_OPT_TYPE_CONST, FF_PRED_LEFT, INT_MIN, INT_MAX, V|E, "pred"},
564
{"plane", NULL, 0, FF_OPT_TYPE_CONST, FF_PRED_PLANE, INT_MIN, INT_MAX, V|E, "pred"},
565
{"median", NULL, 0, FF_OPT_TYPE_CONST, FF_PRED_MEDIAN, INT_MIN, INT_MAX, V|E, "pred"},
566
{"aspect", "sample aspect ratio", OFFSET(sample_aspect_ratio), FF_OPT_TYPE_RATIONAL, DEFAULT, 0, 10, V|E},
567
{"debug", "print specific debug info", OFFSET(debug), FF_OPT_TYPE_FLAGS, DEFAULT, 0, INT_MAX, V|A|S|E|D, "debug"},
568
{"pict", "picture info", 0, FF_OPT_TYPE_CONST, FF_DEBUG_PICT_INFO, INT_MIN, INT_MAX, V|D, "debug"},
569
{"rc", "rate control", 0, FF_OPT_TYPE_CONST, FF_DEBUG_RC, INT_MIN, INT_MAX, V|E, "debug"},
570
{"bitstream", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_BITSTREAM, INT_MIN, INT_MAX, V|D, "debug"},
571
{"mb_type", "macroblock (MB) type", 0, FF_OPT_TYPE_CONST, FF_DEBUG_MB_TYPE, INT_MIN, INT_MAX, V|D, "debug"},
572
{"qp", "per-block quantization parameter (QP)", 0, FF_OPT_TYPE_CONST, FF_DEBUG_QP, INT_MIN, INT_MAX, V|D, "debug"},
573
{"mv", "motion vector", 0, FF_OPT_TYPE_CONST, FF_DEBUG_MV, INT_MIN, INT_MAX, V|D, "debug"},
574
{"dct_coeff", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_DCT_COEFF, INT_MIN, INT_MAX, V|D, "debug"},
575
{"skip", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_SKIP, INT_MIN, INT_MAX, V|D, "debug"},
576
{"startcode", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_STARTCODE, INT_MIN, INT_MAX, V|D, "debug"},
577
{"pts", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_PTS, INT_MIN, INT_MAX, V|D, "debug"},
578
{"er", "error recognition", 0, FF_OPT_TYPE_CONST, FF_DEBUG_ER, INT_MIN, INT_MAX, V|D, "debug"},
579
{"mmco", "memory management control operations (H.264)", 0, FF_OPT_TYPE_CONST, FF_DEBUG_MMCO, INT_MIN, INT_MAX, V|D, "debug"},
580
{"bugs", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_BUGS, INT_MIN, INT_MAX, V|D, "debug"},
581
{"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"},
582
{"vis_mb_type", "visualize block types", 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_MB_TYPE, INT_MIN, INT_MAX, V|D, "debug"},
583
{"buffers", "picture buffer allocations", 0, FF_OPT_TYPE_CONST, FF_DEBUG_BUFFERS, INT_MIN, INT_MAX, V|D, "debug"},
584
{"vismv", "visualize motion vectors (MVs)", OFFSET(debug_mv), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, V|D, "debug_mv"},
585
{"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"},
586
{"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"},
587
{"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"},
588
{"mb_qmin", "obsolete, use qmin", OFFSET(mb_qmin), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
589
{"mb_qmax", "obsolete, use qmax", OFFSET(mb_qmax), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
590
{"cmp", "full pel me compare function", OFFSET(me_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
591
{"subcmp", "sub pel me compare function", OFFSET(me_sub_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
592
{"mbcmp", "macroblock compare function", OFFSET(mb_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
593
{"ildctcmp", "interlaced dct compare function", OFFSET(ildct_cmp), FF_OPT_TYPE_INT, FF_CMP_VSAD, INT_MIN, INT_MAX, V|E, "cmp_func"},
594
{"dia_size", "diamond type & size for motion estimation", OFFSET(dia_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
595
{"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},
596
{"preme", "pre motion estimation", OFFSET(pre_me), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
597
{"precmp", "pre motion estimation compare function", OFFSET(me_pre_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
598
{"sad", "sum of absolute differences, fast (default)", 0, FF_OPT_TYPE_CONST, FF_CMP_SAD, INT_MIN, INT_MAX, V|E, "cmp_func"},
599
{"sse", "sum of squared errors", 0, FF_OPT_TYPE_CONST, FF_CMP_SSE, INT_MIN, INT_MAX, V|E, "cmp_func"},
600
{"satd", "sum of absolute Hadamard transformed differences", 0, FF_OPT_TYPE_CONST, FF_CMP_SATD, INT_MIN, INT_MAX, V|E, "cmp_func"},
601
{"dct", "sum of absolute DCT transformed differences", 0, FF_OPT_TYPE_CONST, FF_CMP_DCT, INT_MIN, INT_MAX, V|E, "cmp_func"},
602
{"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"},
603
{"bit", "number of bits needed for the block", 0, FF_OPT_TYPE_CONST, FF_CMP_BIT, INT_MIN, INT_MAX, V|E, "cmp_func"},
604
{"rd", "rate distortion optimal, slow", 0, FF_OPT_TYPE_CONST, FF_CMP_RD, INT_MIN, INT_MAX, V|E, "cmp_func"},
605
{"zero", "0", 0, FF_OPT_TYPE_CONST, FF_CMP_ZERO, INT_MIN, INT_MAX, V|E, "cmp_func"},
606
{"vsad", "sum of absolute vertical differences", 0, FF_OPT_TYPE_CONST, FF_CMP_VSAD, INT_MIN, INT_MAX, V|E, "cmp_func"},
607
{"vsse","sum of squared vertical differences", 0, FF_OPT_TYPE_CONST, FF_CMP_VSSE, INT_MIN, INT_MAX, V|E, "cmp_func"},
608
{"nsse", "noise preserving sum of squared differences", 0, FF_OPT_TYPE_CONST, FF_CMP_NSSE, INT_MIN, INT_MAX, V|E, "cmp_func"},
609
#ifdef CONFIG_SNOW_ENCODER
610
{"w53", "5/3 wavelet, only used in snow", 0, FF_OPT_TYPE_CONST, FF_CMP_W53, INT_MIN, INT_MAX, V|E, "cmp_func"},
611
{"w97", "9/7 wavelet, only used in snow", 0, FF_OPT_TYPE_CONST, FF_CMP_W97, INT_MIN, INT_MAX, V|E, "cmp_func"},
612
#endif
613
{"dctmax", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_DCTMAX, INT_MIN, INT_MAX, V|E, "cmp_func"},
614
{"chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_CHROMA, INT_MIN, INT_MAX, V|E, "cmp_func"},
615
{"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},
616
{"subq", "sub pel motion estimation quality", OFFSET(me_subpel_quality), FF_OPT_TYPE_INT, 8, INT_MIN, INT_MAX, V|E},
617
{"dtg_active_format", NULL, OFFSET(dtg_active_format), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
618
{"me_range", "limit motion vectors range (1023 for DivX player)", OFFSET(me_range), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
619
{"ibias", "intra quant bias", OFFSET(intra_quant_bias), FF_OPT_TYPE_INT, FF_DEFAULT_QUANT_BIAS, INT_MIN, INT_MAX, V|E},
620
{"pbias", "inter quant bias", OFFSET(inter_quant_bias), FF_OPT_TYPE_INT, FF_DEFAULT_QUANT_BIAS, INT_MIN, INT_MAX, V|E},
621
{"color_table_id", NULL, OFFSET(color_table_id), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
622
{"internal_buffer_count", NULL, OFFSET(internal_buffer_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
623
{"global_quality", NULL, OFFSET(global_quality), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
624
{"coder", NULL, OFFSET(coder_type), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "coder"},
625
{"vlc", "variable length coder / huffman coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_VLC, INT_MIN, INT_MAX, V|E, "coder"},
626
{"ac", "arithmetic coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_AC, INT_MIN, INT_MAX, V|E, "coder"},
627
{"raw", "raw (no encoding)", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_RAW, INT_MIN, INT_MAX, V|E, "coder"},
628
{"rle", "run-length coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_RLE, INT_MIN, INT_MAX, V|E, "coder"},
629
{"deflate", "deflate-based coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_DEFLATE, INT_MIN, INT_MAX, V|E, "coder"},
630
{"context", "context model", OFFSET(context_model), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
631
{"slice_flags", NULL, OFFSET(slice_flags), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
632
{"xvmc_acceleration", NULL, OFFSET(xvmc_acceleration), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
633
{"mbd", "macroblock decision algorithm (high quality mode)", OFFSET(mb_decision), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "mbd"},
634
{"simple", "use mbcmp (default)", 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_SIMPLE, INT_MIN, INT_MAX, V|E, "mbd"},
635
{"bits", "use fewest bits", 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_BITS, INT_MIN, INT_MAX, V|E, "mbd"},
636
{"rd", "use best rate distortion", 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_RD, INT_MIN, INT_MAX, V|E, "mbd"},
637
{"stream_codec_tag", NULL, OFFSET(stream_codec_tag), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
638
{"sc_threshold", "scene change threshold", OFFSET(scenechange_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
639
{"lmin", "min lagrange factor (VBR)", OFFSET(lmin), FF_OPT_TYPE_INT,  2*FF_QP2LAMBDA, 0, INT_MAX, V|E},
640
{"lmax", "max lagrange factor (VBR)", OFFSET(lmax), FF_OPT_TYPE_INT, 31*FF_QP2LAMBDA, 0, INT_MAX, V|E},
641
{"nr", "noise reduction", OFFSET(noise_reduction), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
642
{"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},
643
{"inter_threshold", NULL, OFFSET(inter_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
644
{"flags2", NULL, OFFSET(flags2), FF_OPT_TYPE_FLAGS, CODEC_FLAG2_FASTPSKIP|CODEC_FLAG2_BIT_RESERVOIR, 0, UINT_MAX, V|A|E|D, "flags2"},
645
{"error", NULL, OFFSET(error_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
646
{"antialias", "MP3 antialias algorithm", OFFSET(antialias_algo), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D, "aa"},
647
{"auto", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_AUTO, INT_MIN, INT_MAX, V|D, "aa"},
648
{"fastint", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_FASTINT, INT_MIN, INT_MAX, V|D, "aa"},
649
{"int", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_INT, INT_MIN, INT_MAX, V|D, "aa"},
650
{"float", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_FLOAT, INT_MIN, INT_MAX, V|D, "aa"},
651
{"qns", "quantizer noise shaping", OFFSET(quantizer_noise_shaping), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
652
{"threads", NULL, OFFSET(thread_count), FF_OPT_TYPE_INT, 1, INT_MIN, INT_MAX, V|E|D},
653
{"me_threshold", "motion estimaton threshold", OFFSET(me_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
654
{"mb_threshold", "macroblock threshold", OFFSET(mb_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
655
{"dc", "intra_dc_precision", OFFSET(intra_dc_precision), FF_OPT_TYPE_INT, 0, INT_MIN, INT_MAX, V|E},
656
{"nssew", "nsse weight", OFFSET(nsse_weight), FF_OPT_TYPE_INT, 8, INT_MIN, INT_MAX, V|E},
657
{"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},
658
{"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},
659
{"profile", NULL, OFFSET(profile), FF_OPT_TYPE_INT, FF_PROFILE_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "profile"},
660
{"unknown", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "profile"},
661
{"aac_main", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_AAC_MAIN, INT_MIN, INT_MAX, A|E, "profile"},
662
{"aac_low", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_AAC_LOW, INT_MIN, INT_MAX, A|E, "profile"},
663
{"aac_ssr", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_AAC_SSR, INT_MIN, INT_MAX, A|E, "profile"},
664
{"aac_ltp", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_AAC_LTP, INT_MIN, INT_MAX, A|E, "profile"},
665
{"level", NULL, OFFSET(level), FF_OPT_TYPE_INT, FF_LEVEL_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "level"},
666
{"unknown", NULL, 0, FF_OPT_TYPE_CONST, FF_LEVEL_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "level"},
667
{"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},
668
{"skip_threshold", "frame skip threshold", OFFSET(frame_skip_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
669
{"skip_factor", "frame skip factor", OFFSET(frame_skip_factor), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
670
{"skip_exp", "frame skip exponent", OFFSET(frame_skip_exp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
671
{"skipcmp", "frame skip compare function", OFFSET(frame_skip_cmp), FF_OPT_TYPE_INT, FF_CMP_DCTMAX, INT_MIN, INT_MAX, V|E, "cmp_func"},
672
{"border_mask", "increases the quantizer for macroblocks close to borders", OFFSET(border_masking), FF_OPT_TYPE_FLOAT, DEFAULT, -FLT_MAX, FLT_MAX, V|E},
673
{"mblmin", "min macroblock lagrange factor (VBR)", OFFSET(mb_lmin), FF_OPT_TYPE_INT, FF_QP2LAMBDA * 2, 1, FF_LAMBDA_MAX, V|E},
674
{"mblmax", "max macroblock lagrange factor (VBR)", OFFSET(mb_lmax), FF_OPT_TYPE_INT, FF_QP2LAMBDA * 31, 1, FF_LAMBDA_MAX, V|E},
675
{"mepc", "motion estimation bitrate penalty compensation (1.0 = 256)", OFFSET(me_penalty_compensation), FF_OPT_TYPE_INT, 256, INT_MIN, INT_MAX, V|E},
676
{"skip_loop_filter", NULL, OFFSET(skip_loop_filter), FF_OPT_TYPE_INT, AVDISCARD_DEFAULT, INT_MIN, INT_MAX, V|D, "avdiscard"},
677
{"skip_idct"       , NULL, OFFSET(skip_idct)       , FF_OPT_TYPE_INT, AVDISCARD_DEFAULT, INT_MIN, INT_MAX, V|D, "avdiscard"},
678
{"skip_frame"      , NULL, OFFSET(skip_frame)      , FF_OPT_TYPE_INT, AVDISCARD_DEFAULT, INT_MIN, INT_MAX, V|D, "avdiscard"},
679
{"none"            , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_NONE   , INT_MIN, INT_MAX, V|D, "avdiscard"},
680
{"default"         , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_DEFAULT, INT_MIN, INT_MAX, V|D, "avdiscard"},
681
{"noref"           , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_NONREF , INT_MIN, INT_MAX, V|D, "avdiscard"},
682
{"bidir"           , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_BIDIR  , INT_MIN, INT_MAX, V|D, "avdiscard"},
683
{"nokey"           , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_NONKEY , INT_MIN, INT_MAX, V|D, "avdiscard"},
684
{"all"             , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_ALL    , INT_MIN, INT_MAX, V|D, "avdiscard"},
685
{"bidir_refine", "refine the two motion vectors used in bidirectional macroblocks", OFFSET(bidir_refine), FF_OPT_TYPE_INT, DEFAULT, 0, 4, V|E},
686
{"brd_scale", "downscales frames for dynamic B-frame decision", OFFSET(brd_scale), FF_OPT_TYPE_INT, DEFAULT, 0, 10, V|E},
687
{"crf", "enables constant quality mode, and selects the quality (x264)", OFFSET(crf), FF_OPT_TYPE_FLOAT, DEFAULT, 0, 51, V|E},
688
{"cqp", "constant quantization parameter rate control method", OFFSET(cqp), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, V|E},
689
{"keyint_min", "minimum interval between IDR-frames (x264)", OFFSET(keyint_min), FF_OPT_TYPE_INT, 25, INT_MIN, INT_MAX, V|E},
690
{"refs", "reference frames to consider for motion compensation (Snow)", OFFSET(refs), FF_OPT_TYPE_INT, 1, INT_MIN, INT_MAX, V|E},
691
{"chromaoffset", "chroma qp offset from luma", OFFSET(chromaoffset), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
692
{"bframebias", "influences how often B-frames are used", OFFSET(bframebias), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
693
{"trellis", "rate-distortion optimal quantization", OFFSET(trellis), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|A|E},
694
{"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},
695
{"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"},
696
{"wpred", "weighted biprediction for b-frames (H.264)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_WPRED, INT_MIN, INT_MAX, V|E, "flags2"},
697
{"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"},
698
{"dct8x8", "high profile 8x8 transform (H.264)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_8X8DCT, INT_MIN, INT_MAX, V|E, "flags2"},
699
{"fastpskip", "fast pskip (H.264)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_FASTPSKIP, INT_MIN, INT_MAX, V|E, "flags2"},
700
{"aud", "access unit delimiters (H.264)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_AUD, INT_MIN, INT_MAX, V|E, "flags2"},
701
{"brdo", "b-frame rate-distortion optimization", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_BRDO, INT_MIN, INT_MAX, V|E, "flags2"},
702
{"skiprd", "RD optimal MB level residual skipping", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_SKIP_RD, INT_MIN, INT_MAX, V|E, "flags2"},
703
{"complexityblur", "reduce fluctuations in qp (before curve compression)", OFFSET(complexityblur), FF_OPT_TYPE_FLOAT, 20.0, FLT_MIN, FLT_MAX, V|E},
704
{"deblockalpha", "in-loop deblocking filter alphac0 parameter", OFFSET(deblockalpha), FF_OPT_TYPE_INT, DEFAULT, -6, 6, V|E},
705
{"deblockbeta", "in-loop deblocking filter beta parameter", OFFSET(deblockbeta), FF_OPT_TYPE_INT, DEFAULT, -6, 6, V|E},
706
{"partitions", "macroblock subpartition sizes to consider", OFFSET(partitions), FF_OPT_TYPE_FLAGS, DEFAULT, INT_MIN, INT_MAX, V|E, "partitions"},
707
{"parti4x4", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_I4X4, INT_MIN, INT_MAX, V|E, "partitions"},
708
{"parti8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_I8X8, INT_MIN, INT_MAX, V|E, "partitions"},
709
{"partp4x4", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_P4X4, INT_MIN, INT_MAX, V|E, "partitions"},
710
{"partp8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_P8X8, INT_MIN, INT_MAX, V|E, "partitions"},
711
{"partb8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_B8X8, INT_MIN, INT_MAX, V|E, "partitions"},
712
{"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},
713
{"mv0_threshold", NULL, OFFSET(mv0_threshold), FF_OPT_TYPE_INT, 256, 0, INT_MAX, V|E},
714
{"ivlc", "intra vlc table", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_INTRA_VLC, INT_MIN, INT_MAX, V|E, "flags2"},
715
{"b_sensitivity", "adjusts sensitivity of b_frame_strategy 1", OFFSET(b_sensitivity), FF_OPT_TYPE_INT, 40, 1, INT_MAX, V|E},
716
{"compression_level", NULL, OFFSET(compression_level), FF_OPT_TYPE_INT, FF_COMPRESSION_DEFAULT, INT_MIN, INT_MAX, V|A|E},
717
{"use_lpc", "sets whether to use LPC mode (FLAC)", OFFSET(use_lpc), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
718
{"lpc_coeff_precision", "LPC coefficient precision (FLAC)", OFFSET(lpc_coeff_precision), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, A|E},
719
{"min_prediction_order", NULL, OFFSET(min_prediction_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
720
{"max_prediction_order", NULL, OFFSET(max_prediction_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
721
{"prediction_order_method", "search method for selecting prediction order", OFFSET(prediction_order_method), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
722
{"min_partition_order", NULL, OFFSET(min_partition_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
723
{"max_partition_order", NULL, OFFSET(max_partition_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
724
{"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},
725
{"drop_frame_timecode", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_DROP_FRAME_TIMECODE, INT_MIN, INT_MAX, V|E, "flags2"},
726
{"non_linear_q", "use non linear quantizer", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_NON_LINEAR_QUANT, INT_MIN, INT_MAX, V|E, "flags2"},
727
{"request_channels", "set desired number of audio channels", OFFSET(request_channels), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, A|D},
728
{"drc_scale", "percentage of dynamic range compression to apply", OFFSET(drc_scale), FF_OPT_TYPE_FLOAT, 1.0, 0.0, 1.0, A|D},
729
{"reservoir", "use bit reservoir", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_BIT_RESERVOIR, INT_MIN, INT_MAX, A|E, "flags2"},
730
{"bits_per_raw_sample", NULL, OFFSET(bits_per_raw_sample), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
731
{NULL},
732
};
733

    
734
#undef A
735
#undef V
736
#undef S
737
#undef E
738
#undef D
739
#undef DEFAULT
740

    
741
static const AVClass av_codec_context_class = { "AVCodecContext", context_to_name, options };
742

    
743
void avcodec_get_context_defaults2(AVCodecContext *s, enum CodecType codec_type){
744
    int flags=0;
745
    memset(s, 0, sizeof(AVCodecContext));
746

    
747
    s->av_class= &av_codec_context_class;
748

    
749
    s->codec_type = codec_type;
750
    if(codec_type == CODEC_TYPE_AUDIO)
751
        flags= AV_OPT_FLAG_AUDIO_PARAM;
752
    else if(codec_type == CODEC_TYPE_VIDEO)
753
        flags= AV_OPT_FLAG_VIDEO_PARAM;
754
    else if(codec_type == CODEC_TYPE_SUBTITLE)
755
        flags= AV_OPT_FLAG_SUBTITLE_PARAM;
756
    av_opt_set_defaults2(s, flags, flags);
757

    
758
    s->time_base= (AVRational){0,1};
759
    s->get_buffer= avcodec_default_get_buffer;
760
    s->release_buffer= avcodec_default_release_buffer;
761
    s->get_format= avcodec_default_get_format;
762
    s->execute= avcodec_default_execute;
763
    s->sample_aspect_ratio= (AVRational){0,1};
764
    s->pix_fmt= PIX_FMT_NONE;
765
    s->sample_fmt= SAMPLE_FMT_S16; // FIXME: set to NONE
766

    
767
    s->palctrl = NULL;
768
    s->reget_buffer= avcodec_default_reget_buffer;
769
}
770

    
771
AVCodecContext *avcodec_alloc_context2(enum CodecType codec_type){
772
    AVCodecContext *avctx= av_malloc(sizeof(AVCodecContext));
773

    
774
    if(avctx==NULL) return NULL;
775

    
776
    avcodec_get_context_defaults2(avctx, codec_type);
777

    
778
    return avctx;
779
}
780

    
781
void avcodec_get_context_defaults(AVCodecContext *s){
782
    avcodec_get_context_defaults2(s, CODEC_TYPE_UNKNOWN);
783
}
784

    
785
AVCodecContext *avcodec_alloc_context(void){
786
    return avcodec_alloc_context2(CODEC_TYPE_UNKNOWN);
787
}
788

    
789
void avcodec_get_frame_defaults(AVFrame *pic){
790
    memset(pic, 0, sizeof(AVFrame));
791

    
792
    pic->pts= AV_NOPTS_VALUE;
793
    pic->key_frame= 1;
794
}
795

    
796
AVFrame *avcodec_alloc_frame(void){
797
    AVFrame *pic= av_malloc(sizeof(AVFrame));
798

    
799
    if(pic==NULL) return NULL;
800

    
801
    avcodec_get_frame_defaults(pic);
802

    
803
    return pic;
804
}
805

    
806
int attribute_align_arg avcodec_open(AVCodecContext *avctx, AVCodec *codec)
807
{
808
    int ret= -1;
809

    
810
    entangled_thread_counter++;
811
    if(entangled_thread_counter != 1){
812
        av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
813
        goto end;
814
    }
815

    
816
    if(avctx->codec || !codec)
817
        goto end;
818

    
819
    if (codec->priv_data_size > 0) {
820
        avctx->priv_data = av_mallocz(codec->priv_data_size);
821
        if (!avctx->priv_data) {
822
            ret = AVERROR(ENOMEM);
823
            goto end;
824
        }
825
    } else {
826
        avctx->priv_data = NULL;
827
    }
828

    
829
    if(avctx->coded_width && avctx->coded_height)
830
        avcodec_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
831
    else if(avctx->width && avctx->height)
832
        avcodec_set_dimensions(avctx, avctx->width, avctx->height);
833

    
834
    if((avctx->coded_width||avctx->coded_height) && avcodec_check_dimensions(avctx,avctx->coded_width,avctx->coded_height)){
835
        av_freep(&avctx->priv_data);
836
        ret = AVERROR(EINVAL);
837
        goto end;
838
    }
839

    
840
    avctx->codec = codec;
841
    avctx->codec_id = codec->id;
842
    avctx->frame_number = 0;
843
    if(avctx->codec->init){
844
        ret = avctx->codec->init(avctx);
845
        if (ret < 0) {
846
            av_freep(&avctx->priv_data);
847
            avctx->codec= NULL;
848
            goto end;
849
        }
850
    }
851
    ret=0;
852
end:
853
    entangled_thread_counter--;
854
    return ret;
855
}
856

    
857
int attribute_align_arg avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
858
                         const short *samples)
859
{
860
    if(buf_size < FF_MIN_BUFFER_SIZE && 0){
861
        av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
862
        return -1;
863
    }
864
    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || samples){
865
        int ret = avctx->codec->encode(avctx, buf, buf_size, (void *)samples);
866
        avctx->frame_number++;
867
        return ret;
868
    }else
869
        return 0;
870
}
871

    
872
int attribute_align_arg avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
873
                         const AVFrame *pict)
874
{
875
    if(buf_size < FF_MIN_BUFFER_SIZE){
876
        av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
877
        return -1;
878
    }
879
    if(avcodec_check_dimensions(avctx,avctx->width,avctx->height))
880
        return -1;
881
    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || pict){
882
        int ret = avctx->codec->encode(avctx, buf, buf_size, (void *)pict);
883
        avctx->frame_number++;
884
        emms_c(); //needed to avoid an emms_c() call before every return;
885

    
886
        return ret;
887
    }else
888
        return 0;
889
}
890

    
891
int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
892
                            const AVSubtitle *sub)
893
{
894
    int ret;
895
    ret = avctx->codec->encode(avctx, buf, buf_size, (void *)sub);
896
    avctx->frame_number++;
897
    return ret;
898
}
899

    
900
int attribute_align_arg avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
901
                         int *got_picture_ptr,
902
                         const uint8_t *buf, int buf_size)
903
{
904
    int ret;
905

    
906
    *got_picture_ptr= 0;
907
    if((avctx->coded_width||avctx->coded_height) && avcodec_check_dimensions(avctx,avctx->coded_width,avctx->coded_height))
908
        return -1;
909
    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || buf_size){
910
        ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
911
                                buf, buf_size);
912

    
913
        emms_c(); //needed to avoid an emms_c() call before every return;
914

    
915
        if (*got_picture_ptr)
916
            avctx->frame_number++;
917
    }else
918
        ret= 0;
919

    
920
    return ret;
921
}
922

    
923
int attribute_align_arg avcodec_decode_audio2(AVCodecContext *avctx, int16_t *samples,
924
                         int *frame_size_ptr,
925
                         const uint8_t *buf, int buf_size)
926
{
927
    int ret;
928

    
929
    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || buf_size){
930
        //FIXME remove the check below _after_ ensuring that all audio check that the available space is enough
931
        if(*frame_size_ptr < AVCODEC_MAX_AUDIO_FRAME_SIZE){
932
            av_log(avctx, AV_LOG_ERROR, "buffer smaller than AVCODEC_MAX_AUDIO_FRAME_SIZE\n");
933
            return -1;
934
        }
935
        if(*frame_size_ptr < FF_MIN_BUFFER_SIZE ||
936
        *frame_size_ptr < avctx->channels * avctx->frame_size * sizeof(int16_t)){
937
            av_log(avctx, AV_LOG_ERROR, "buffer %d too small\n", *frame_size_ptr);
938
            return -1;
939
        }
940

    
941
        ret = avctx->codec->decode(avctx, samples, frame_size_ptr,
942
                                buf, buf_size);
943
        avctx->frame_number++;
944
    }else{
945
        ret= 0;
946
        *frame_size_ptr=0;
947
    }
948
    return ret;
949
}
950

    
951
int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
952
                            int *got_sub_ptr,
953
                            const uint8_t *buf, int buf_size)
954
{
955
    int ret;
956

    
957
    *got_sub_ptr = 0;
958
    ret = avctx->codec->decode(avctx, sub, got_sub_ptr,
959
                               buf, buf_size);
960
    if (*got_sub_ptr)
961
        avctx->frame_number++;
962
    return ret;
963
}
964

    
965
int avcodec_close(AVCodecContext *avctx)
966
{
967
    entangled_thread_counter++;
968
    if(entangled_thread_counter != 1){
969
        av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
970
        entangled_thread_counter--;
971
        return -1;
972
    }
973

    
974
    if (ENABLE_THREADS && avctx->thread_opaque)
975
        avcodec_thread_free(avctx);
976
    if (avctx->codec->close)
977
        avctx->codec->close(avctx);
978
    avcodec_default_free_buffers(avctx);
979
    av_freep(&avctx->priv_data);
980
    avctx->codec = NULL;
981
    entangled_thread_counter--;
982
    return 0;
983
}
984

    
985
AVCodec *avcodec_find_encoder(enum CodecID id)
986
{
987
    AVCodec *p;
988
    p = first_avcodec;
989
    while (p) {
990
        if (p->encode != NULL && p->id == id)
991
            return p;
992
        p = p->next;
993
    }
994
    return NULL;
995
}
996

    
997
AVCodec *avcodec_find_encoder_by_name(const char *name)
998
{
999
    AVCodec *p;
1000
    p = first_avcodec;
1001
    while (p) {
1002
        if (p->encode != NULL && strcmp(name,p->name) == 0)
1003
            return p;
1004
        p = p->next;
1005
    }
1006
    return NULL;
1007
}
1008

    
1009
AVCodec *avcodec_find_decoder(enum CodecID id)
1010
{
1011
    AVCodec *p;
1012
    p = first_avcodec;
1013
    while (p) {
1014
        if (p->decode != NULL && p->id == id)
1015
            return p;
1016
        p = p->next;
1017
    }
1018
    return NULL;
1019
}
1020

    
1021
AVCodec *avcodec_find_decoder_by_name(const char *name)
1022
{
1023
    AVCodec *p;
1024
    p = first_avcodec;
1025
    while (p) {
1026
        if (p->decode != NULL && strcmp(name,p->name) == 0)
1027
            return p;
1028
        p = p->next;
1029
    }
1030
    return NULL;
1031
}
1032

    
1033
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1034
{
1035
    const char *codec_name;
1036
    AVCodec *p;
1037
    char buf1[32];
1038
    char channels_str[100];
1039
    int bitrate;
1040
    AVRational display_aspect_ratio;
1041

    
1042
    if (encode)
1043
        p = avcodec_find_encoder(enc->codec_id);
1044
    else
1045
        p = avcodec_find_decoder(enc->codec_id);
1046

    
1047
    if (p) {
1048
        codec_name = p->name;
1049
        if (!encode && enc->codec_id == CODEC_ID_MP3) {
1050
            if (enc->sub_id == 2)
1051
                codec_name = "mp2";
1052
            else if (enc->sub_id == 1)
1053
                codec_name = "mp1";
1054
        }
1055
    } else if (enc->codec_id == CODEC_ID_MPEG2TS) {
1056
        /* fake mpeg2 transport stream codec (currently not
1057
           registered) */
1058
        codec_name = "mpeg2ts";
1059
    } else if (enc->codec_name[0] != '\0') {
1060
        codec_name = enc->codec_name;
1061
    } else {
1062
        /* output avi tags */
1063
        if(   isprint(enc->codec_tag&0xFF) && isprint((enc->codec_tag>>8)&0xFF)
1064
           && isprint((enc->codec_tag>>16)&0xFF) && isprint((enc->codec_tag>>24)&0xFF)){
1065
            snprintf(buf1, sizeof(buf1), "%c%c%c%c / 0x%04X",
1066
                     enc->codec_tag & 0xff,
1067
                     (enc->codec_tag >> 8) & 0xff,
1068
                     (enc->codec_tag >> 16) & 0xff,
1069
                     (enc->codec_tag >> 24) & 0xff,
1070
                      enc->codec_tag);
1071
        } else {
1072
            snprintf(buf1, sizeof(buf1), "0x%04x", enc->codec_tag);
1073
        }
1074
        codec_name = buf1;
1075
    }
1076

    
1077
    switch(enc->codec_type) {
1078
    case CODEC_TYPE_VIDEO:
1079
        snprintf(buf, buf_size,
1080
                 "Video: %s%s",
1081
                 codec_name, enc->mb_decision ? " (hq)" : "");
1082
        if (enc->pix_fmt != PIX_FMT_NONE) {
1083
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1084
                     ", %s",
1085
                     avcodec_get_pix_fmt_name(enc->pix_fmt));
1086
        }
1087
        if (enc->width) {
1088
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1089
                     ", %dx%d",
1090
                     enc->width, enc->height);
1091
            if (enc->sample_aspect_ratio.num) {
1092
                av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
1093
                          enc->width*enc->sample_aspect_ratio.num,
1094
                          enc->height*enc->sample_aspect_ratio.den,
1095
                          1024*1024);
1096
                snprintf(buf + strlen(buf), buf_size - strlen(buf),
1097
                         " [PAR %d:%d DAR %d:%d]",
1098
                         enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
1099
                         display_aspect_ratio.num, display_aspect_ratio.den);
1100
            }
1101
            if(av_log_get_level() >= AV_LOG_DEBUG){
1102
                int g= ff_gcd(enc->time_base.num, enc->time_base.den);
1103
                snprintf(buf + strlen(buf), buf_size - strlen(buf),
1104
                     ", %d/%d",
1105
                     enc->time_base.num/g, enc->time_base.den/g);
1106
            }
1107
        }
1108
        if (encode) {
1109
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1110
                     ", q=%d-%d", enc->qmin, enc->qmax);
1111
        }
1112
        bitrate = enc->bit_rate;
1113
        break;
1114
    case CODEC_TYPE_AUDIO:
1115
        snprintf(buf, buf_size,
1116
                 "Audio: %s",
1117
                 codec_name);
1118
        switch (enc->channels) {
1119
            case 1:
1120
                strcpy(channels_str, "mono");
1121
                break;
1122
            case 2:
1123
                strcpy(channels_str, "stereo");
1124
                break;
1125
            case 6:
1126
                strcpy(channels_str, "5:1");
1127
                break;
1128
            default:
1129
                snprintf(channels_str, sizeof(channels_str), "%d channels", enc->channels);
1130
                break;
1131
        }
1132
        if (enc->sample_rate) {
1133
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1134
                     ", %d Hz, %s",
1135
                     enc->sample_rate,
1136
                     channels_str);
1137
        }
1138
        if (enc->sample_fmt != SAMPLE_FMT_NONE) {
1139
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1140
                     ", %s", avcodec_get_sample_fmt_name(enc->sample_fmt));
1141
        }
1142

    
1143
        /* for PCM codecs, compute bitrate directly */
1144
        switch(enc->codec_id) {
1145
        case CODEC_ID_PCM_F64BE:
1146
        case CODEC_ID_PCM_F64LE:
1147
            bitrate = enc->sample_rate * enc->channels * 64;
1148
            break;
1149
        case CODEC_ID_PCM_S32LE:
1150
        case CODEC_ID_PCM_S32BE:
1151
        case CODEC_ID_PCM_U32LE:
1152
        case CODEC_ID_PCM_U32BE:
1153
        case CODEC_ID_PCM_F32BE:
1154
        case CODEC_ID_PCM_F32LE:
1155
            bitrate = enc->sample_rate * enc->channels * 32;
1156
            break;
1157
        case CODEC_ID_PCM_S24LE:
1158
        case CODEC_ID_PCM_S24BE:
1159
        case CODEC_ID_PCM_U24LE:
1160
        case CODEC_ID_PCM_U24BE:
1161
        case CODEC_ID_PCM_S24DAUD:
1162
            bitrate = enc->sample_rate * enc->channels * 24;
1163
            break;
1164
        case CODEC_ID_PCM_S16LE:
1165
        case CODEC_ID_PCM_S16BE:
1166
        case CODEC_ID_PCM_S16LE_PLANAR:
1167
        case CODEC_ID_PCM_U16LE:
1168
        case CODEC_ID_PCM_U16BE:
1169
            bitrate = enc->sample_rate * enc->channels * 16;
1170
            break;
1171
        case CODEC_ID_PCM_S8:
1172
        case CODEC_ID_PCM_U8:
1173
        case CODEC_ID_PCM_ALAW:
1174
        case CODEC_ID_PCM_MULAW:
1175
        case CODEC_ID_PCM_ZORK:
1176
            bitrate = enc->sample_rate * enc->channels * 8;
1177
            break;
1178
        default:
1179
            bitrate = enc->bit_rate;
1180
            break;
1181
        }
1182
        break;
1183
    case CODEC_TYPE_DATA:
1184
        snprintf(buf, buf_size, "Data: %s", codec_name);
1185
        bitrate = enc->bit_rate;
1186
        break;
1187
    case CODEC_TYPE_SUBTITLE:
1188
        snprintf(buf, buf_size, "Subtitle: %s", codec_name);
1189
        bitrate = enc->bit_rate;
1190
        break;
1191
    case CODEC_TYPE_ATTACHMENT:
1192
        snprintf(buf, buf_size, "Attachment: %s", codec_name);
1193
        bitrate = enc->bit_rate;
1194
        break;
1195
    default:
1196
        snprintf(buf, buf_size, "Invalid Codec type %d", enc->codec_type);
1197
        return;
1198
    }
1199
    if (encode) {
1200
        if (enc->flags & CODEC_FLAG_PASS1)
1201
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1202
                     ", pass 1");
1203
        if (enc->flags & CODEC_FLAG_PASS2)
1204
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1205
                     ", pass 2");
1206
    }
1207
    if (bitrate != 0) {
1208
        snprintf(buf + strlen(buf), buf_size - strlen(buf),
1209
                 ", %d kb/s", bitrate / 1000);
1210
    }
1211
}
1212

    
1213
unsigned avcodec_version( void )
1214
{
1215
  return LIBAVCODEC_VERSION_INT;
1216
}
1217

    
1218
void avcodec_init(void)
1219
{
1220
    static int initialized = 0;
1221

    
1222
    if (initialized != 0)
1223
        return;
1224
    initialized = 1;
1225

    
1226
    dsputil_static_init();
1227
}
1228

    
1229
void avcodec_flush_buffers(AVCodecContext *avctx)
1230
{
1231
    if(avctx->codec->flush)
1232
        avctx->codec->flush(avctx);
1233
}
1234

    
1235
void avcodec_default_free_buffers(AVCodecContext *s){
1236
    int i, j;
1237

    
1238
    if(s->internal_buffer==NULL) return;
1239

    
1240
    for(i=0; i<INTERNAL_BUFFER_SIZE; i++){
1241
        InternalBuffer *buf= &((InternalBuffer*)s->internal_buffer)[i];
1242
        for(j=0; j<4; j++){
1243
            av_freep(&buf->base[j]);
1244
            buf->data[j]= NULL;
1245
        }
1246
    }
1247
    av_freep(&s->internal_buffer);
1248

    
1249
    s->internal_buffer_count=0;
1250
}
1251

    
1252
char av_get_pict_type_char(int pict_type){
1253
    switch(pict_type){
1254
    case FF_I_TYPE: return 'I';
1255
    case FF_P_TYPE: return 'P';
1256
    case FF_B_TYPE: return 'B';
1257
    case FF_S_TYPE: return 'S';
1258
    case FF_SI_TYPE:return 'i';
1259
    case FF_SP_TYPE:return 'p';
1260
    case FF_BI_TYPE:return 'b';
1261
    default:        return '?';
1262
    }
1263
}
1264

    
1265
int av_get_bits_per_sample(enum CodecID codec_id){
1266
    switch(codec_id){
1267
    case CODEC_ID_ADPCM_SBPRO_2:
1268
        return 2;
1269
    case CODEC_ID_ADPCM_SBPRO_3:
1270
        return 3;
1271
    case CODEC_ID_ADPCM_SBPRO_4:
1272
    case CODEC_ID_ADPCM_CT:
1273
        return 4;
1274
    case CODEC_ID_PCM_ALAW:
1275
    case CODEC_ID_PCM_MULAW:
1276
    case CODEC_ID_PCM_S8:
1277
    case CODEC_ID_PCM_U8:
1278
    case CODEC_ID_PCM_ZORK:
1279
        return 8;
1280
    case CODEC_ID_PCM_S16BE:
1281
    case CODEC_ID_PCM_S16LE:
1282
    case CODEC_ID_PCM_S16LE_PLANAR:
1283
    case CODEC_ID_PCM_U16BE:
1284
    case CODEC_ID_PCM_U16LE:
1285
        return 16;
1286
    case CODEC_ID_PCM_S24DAUD:
1287
    case CODEC_ID_PCM_S24BE:
1288
    case CODEC_ID_PCM_S24LE:
1289
    case CODEC_ID_PCM_U24BE:
1290
    case CODEC_ID_PCM_U24LE:
1291
        return 24;
1292
    case CODEC_ID_PCM_S32BE:
1293
    case CODEC_ID_PCM_S32LE:
1294
    case CODEC_ID_PCM_U32BE:
1295
    case CODEC_ID_PCM_U32LE:
1296
    case CODEC_ID_PCM_F32BE:
1297
    case CODEC_ID_PCM_F32LE:
1298
        return 32;
1299
    case CODEC_ID_PCM_F64BE:
1300
    case CODEC_ID_PCM_F64LE:
1301
        return 64;
1302
    default:
1303
        return 0;
1304
    }
1305
}
1306

    
1307
int av_get_bits_per_sample_format(enum SampleFormat sample_fmt) {
1308
    switch (sample_fmt) {
1309
    case SAMPLE_FMT_U8:
1310
        return 8;
1311
    case SAMPLE_FMT_S16:
1312
        return 16;
1313
    case SAMPLE_FMT_S32:
1314
    case SAMPLE_FMT_FLT:
1315
        return 32;
1316
    case SAMPLE_FMT_DBL:
1317
        return 64;
1318
    default:
1319
        return 0;
1320
    }
1321
}
1322

    
1323
#if !defined(HAVE_THREADS)
1324
int avcodec_thread_init(AVCodecContext *s, int thread_count){
1325
    return -1;
1326
}
1327
#endif
1328

    
1329
unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1330
{
1331
    unsigned int n = 0;
1332

    
1333
    while(v >= 0xff) {
1334
        *s++ = 0xff;
1335
        v -= 0xff;
1336
        n++;
1337
    }
1338
    *s = v;
1339
    n++;
1340
    return n;
1341
}
1342

    
1343
/* Wrapper to work around the lack of mkstemp() on mingw/cygin.
1344
 * Also, tries to create file in /tmp first, if possible.
1345
 * *prefix can be a character constant; *filename will be allocated internally.
1346
 * Returns file descriptor of opened file (or -1 on error)
1347
 * and opened file name in **filename. */
1348
int av_tempfile(char *prefix, char **filename) {
1349
    int fd=-1;
1350
#if !defined(HAVE_MKSTEMP)
1351
    *filename = tempnam(".", prefix);
1352
#else
1353
    size_t len = strlen(prefix) + 12; /* room for "/tmp/" and "XXXXXX\0" */
1354
    *filename = av_malloc(len);
1355
#endif
1356
    /* -----common section-----*/
1357
    if (*filename == NULL) {
1358
        av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot allocate file name\n");
1359
        return -1;
1360
    }
1361
#if !defined(HAVE_MKSTEMP)
1362
    fd = open(*filename, O_RDWR | O_BINARY | O_CREAT, 0444);
1363
#else
1364
    snprintf(*filename, len, "/tmp/%sXXXXXX", prefix);
1365
    fd = mkstemp(*filename);
1366
    if (fd < 0) {
1367
        snprintf(*filename, len, "./%sXXXXXX", prefix);
1368
        fd = mkstemp(*filename);
1369
    }
1370
#endif
1371
    /* -----common section-----*/
1372
    if (fd < 0) {
1373
        av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot open temporary file %s\n", *filename);
1374
        return -1;
1375
    }
1376
    return fd; /* success */
1377
}
1378

    
1379
typedef struct {
1380
    const char *abbr;
1381
    int width, height;
1382
} VideoFrameSizeAbbr;
1383

    
1384
typedef struct {
1385
    const char *abbr;
1386
    int rate_num, rate_den;
1387
} VideoFrameRateAbbr;
1388

    
1389
static const VideoFrameSizeAbbr video_frame_size_abbrs[] = {
1390
    { "ntsc",      720, 480 },
1391
    { "pal",       720, 576 },
1392
    { "qntsc",     352, 240 }, /* VCD compliant NTSC */
1393
    { "qpal",      352, 288 }, /* VCD compliant PAL */
1394
    { "sntsc",     640, 480 }, /* square pixel NTSC */
1395
    { "spal",      768, 576 }, /* square pixel PAL */
1396
    { "film",      352, 240 },
1397
    { "ntsc-film", 352, 240 },
1398
    { "sqcif",     128,  96 },
1399
    { "qcif",      176, 144 },
1400
    { "cif",       352, 288 },
1401
    { "4cif",      704, 576 },
1402
    { "qqvga",     160, 120 },
1403
    { "qvga",      320, 240 },
1404
    { "vga",       640, 480 },
1405
    { "svga",      800, 600 },
1406
    { "xga",      1024, 768 },
1407
    { "uxga",     1600,1200 },
1408
    { "qxga",     2048,1536 },
1409
    { "sxga",     1280,1024 },
1410
    { "qsxga",    2560,2048 },
1411
    { "hsxga",    5120,4096 },
1412
    { "wvga",      852, 480 },
1413
    { "wxga",     1366, 768 },
1414
    { "wsxga",    1600,1024 },
1415
    { "wuxga",    1920,1200 },
1416
    { "woxga",    2560,1600 },
1417
    { "wqsxga",   3200,2048 },
1418
    { "wquxga",   3840,2400 },
1419
    { "whsxga",   6400,4096 },
1420
    { "whuxga",   7680,4800 },
1421
    { "cga",       320, 200 },
1422
    { "ega",       640, 350 },
1423
    { "hd480",     852, 480 },
1424
    { "hd720",    1280, 720 },
1425
    { "hd1080",   1920,1080 },
1426
};
1427

    
1428
static const VideoFrameRateAbbr video_frame_rate_abbrs[]= {
1429
    { "ntsc",      30000, 1001 },
1430
    { "pal",          25,    1 },
1431
    { "qntsc",     30000, 1001 }, /* VCD compliant NTSC */
1432
    { "qpal",         25,    1 }, /* VCD compliant PAL */
1433
    { "sntsc",     30000, 1001 }, /* square pixel NTSC */
1434
    { "spal",         25,    1 }, /* square pixel PAL */
1435
    { "film",         24,    1 },
1436
    { "ntsc-film", 24000, 1001 },
1437
};
1438

    
1439
int av_parse_video_frame_size(int *width_ptr, int *height_ptr, const char *str)
1440
{
1441
    int i;
1442
    int n = sizeof(video_frame_size_abbrs) / sizeof(VideoFrameSizeAbbr);
1443
    const char *p;
1444
    int frame_width = 0, frame_height = 0;
1445

    
1446
    for(i=0;i<n;i++) {
1447
        if (!strcmp(video_frame_size_abbrs[i].abbr, str)) {
1448
            frame_width = video_frame_size_abbrs[i].width;
1449
            frame_height = video_frame_size_abbrs[i].height;
1450
            break;
1451
        }
1452
    }
1453
    if (i == n) {
1454
        p = str;
1455
        frame_width = strtol(p, (char **)&p, 10);
1456
        if (*p)
1457
            p++;
1458
        frame_height = strtol(p, (char **)&p, 10);
1459
    }
1460
    if (frame_width <= 0 || frame_height <= 0)
1461
        return -1;
1462
    *width_ptr = frame_width;
1463
    *height_ptr = frame_height;
1464
    return 0;
1465
}
1466

    
1467
int av_parse_video_frame_rate(AVRational *frame_rate, const char *arg)
1468
{
1469
    int i;
1470
    int n = sizeof(video_frame_rate_abbrs) / sizeof(VideoFrameRateAbbr);
1471
    char* cp;
1472

    
1473
    /* First, we check our abbreviation table */
1474
    for (i = 0; i < n; ++i)
1475
         if (!strcmp(video_frame_rate_abbrs[i].abbr, arg)) {
1476
             frame_rate->num = video_frame_rate_abbrs[i].rate_num;
1477
             frame_rate->den = video_frame_rate_abbrs[i].rate_den;
1478
             return 0;
1479
         }
1480

    
1481
    /* Then, we try to parse it as fraction */
1482
    cp = strchr(arg, '/');
1483
    if (!cp)
1484
        cp = strchr(arg, ':');
1485
    if (cp) {
1486
        char* cpp;
1487
        frame_rate->num = strtol(arg, &cpp, 10);
1488
        if (cpp != arg || cpp == cp)
1489
            frame_rate->den = strtol(cp+1, &cpp, 10);
1490
        else
1491
           frame_rate->num = 0;
1492
    }
1493
    else {
1494
        /* Finally we give up and parse it as double */
1495
        AVRational time_base = av_d2q(strtod(arg, 0), 1001000);
1496
        frame_rate->den = time_base.den;
1497
        frame_rate->num = time_base.num;
1498
    }
1499
    if (!frame_rate->num || !frame_rate->den)
1500
        return -1;
1501
    else
1502
        return 0;
1503
}
1504

    
1505
void av_log_missing_feature(void *avc, const char *feature, int want_sample)
1506
{
1507
    av_log(avc, AV_LOG_WARNING, "%s not implemented. Update your FFmpeg "
1508
            "version to the newest one from SVN. If the problem still "
1509
            "occurs, it means that your file has a feature which has not "
1510
            "been implemented.", feature);
1511
    if(want_sample)
1512
        av_log(avc, AV_LOG_WARNING, " If you want to help, upload a sample "
1513
                "of this file to ftp://upload.mplayerhq.hu/MPlayer/incoming/ "
1514
                "and contact the FFmpeg-devel mailing list.");
1515
    av_log(avc, AV_LOG_WARNING, "\n");
1516
}