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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
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 * version 2.1 of the License, or (at your option) any later version.
12
 *
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 * 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.
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 */
27

    
28
#include "libavutil/integer.h"
29
#include "libavutil/crc.h"
30
#include "avcodec.h"
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#include "dsputil.h"
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#include "opt.h"
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#include "imgconvert.h"
34
#include "audioconvert.h"
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#include <stdarg.h>
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#include <limits.h>
37
#include <float.h>
38
#if !defined(HAVE_MKSTEMP)
39
#include <fcntl.h>
40
#endif
41

    
42
const uint8_t ff_reverse[256]={
43
0x00,0x80,0x40,0xC0,0x20,0xA0,0x60,0xE0,0x10,0x90,0x50,0xD0,0x30,0xB0,0x70,0xF0,
44
0x08,0x88,0x48,0xC8,0x28,0xA8,0x68,0xE8,0x18,0x98,0x58,0xD8,0x38,0xB8,0x78,0xF8,
45
0x04,0x84,0x44,0xC4,0x24,0xA4,0x64,0xE4,0x14,0x94,0x54,0xD4,0x34,0xB4,0x74,0xF4,
46
0x0C,0x8C,0x4C,0xCC,0x2C,0xAC,0x6C,0xEC,0x1C,0x9C,0x5C,0xDC,0x3C,0xBC,0x7C,0xFC,
47
0x02,0x82,0x42,0xC2,0x22,0xA2,0x62,0xE2,0x12,0x92,0x52,0xD2,0x32,0xB2,0x72,0xF2,
48
0x0A,0x8A,0x4A,0xCA,0x2A,0xAA,0x6A,0xEA,0x1A,0x9A,0x5A,0xDA,0x3A,0xBA,0x7A,0xFA,
49
0x06,0x86,0x46,0xC6,0x26,0xA6,0x66,0xE6,0x16,0x96,0x56,0xD6,0x36,0xB6,0x76,0xF6,
50
0x0E,0x8E,0x4E,0xCE,0x2E,0xAE,0x6E,0xEE,0x1E,0x9E,0x5E,0xDE,0x3E,0xBE,0x7E,0xFE,
51
0x01,0x81,0x41,0xC1,0x21,0xA1,0x61,0xE1,0x11,0x91,0x51,0xD1,0x31,0xB1,0x71,0xF1,
52
0x09,0x89,0x49,0xC9,0x29,0xA9,0x69,0xE9,0x19,0x99,0x59,0xD9,0x39,0xB9,0x79,0xF9,
53
0x05,0x85,0x45,0xC5,0x25,0xA5,0x65,0xE5,0x15,0x95,0x55,0xD5,0x35,0xB5,0x75,0xF5,
54
0x0D,0x8D,0x4D,0xCD,0x2D,0xAD,0x6D,0xED,0x1D,0x9D,0x5D,0xDD,0x3D,0xBD,0x7D,0xFD,
55
0x03,0x83,0x43,0xC3,0x23,0xA3,0x63,0xE3,0x13,0x93,0x53,0xD3,0x33,0xB3,0x73,0xF3,
56
0x0B,0x8B,0x4B,0xCB,0x2B,0xAB,0x6B,0xEB,0x1B,0x9B,0x5B,0xDB,0x3B,0xBB,0x7B,0xFB,
57
0x07,0x87,0x47,0xC7,0x27,0xA7,0x67,0xE7,0x17,0x97,0x57,0xD7,0x37,0xB7,0x77,0xF7,
58
0x0F,0x8F,0x4F,0xCF,0x2F,0xAF,0x6F,0xEF,0x1F,0x9F,0x5F,0xDF,0x3F,0xBF,0x7F,0xFF,
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};
60

    
61
static int volatile entangled_thread_counter=0;
62

    
63
void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size)
64
{
65
    if(min_size < *size)
66
        return ptr;
67

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

    
70
    ptr= av_realloc(ptr, *size);
71
    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
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        *size= 0;
73

    
74
    return ptr;
75
}
76

    
77
/* encoder management */
78
AVCodec *first_avcodec = NULL;
79

    
80
AVCodec *av_codec_next(AVCodec *c){
81
    if(c) return c->next;
82
    else  return first_avcodec;
83
}
84

    
85
void register_avcodec(AVCodec *format)
86
{
87
    AVCodec **p;
88
    p = &first_avcodec;
89
    while (*p != NULL) p = &(*p)->next;
90
    *p = format;
91
    format->next = NULL;
92
}
93

    
94
void avcodec_set_dimensions(AVCodecContext *s, int width, int height){
95
    s->coded_width = width;
96
    s->coded_height= height;
97
    s->width = -((-width )>>s->lowres);
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    s->height= -((-height)>>s->lowres);
99
}
100

    
101
typedef struct InternalBuffer{
102
    int last_pic_num;
103
    uint8_t *base[4];
104
    uint8_t *data[4];
105
    int linesize[4];
106
    int width, height;
107
    enum PixelFormat pix_fmt;
108
}InternalBuffer;
109

    
110
#define INTERNAL_BUFFER_SIZE 32
111

    
112
#define ALIGN(x, a) (((x)+(a)-1)&~((a)-1))
113

    
114
void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height){
115
    int w_align= 1;
116
    int h_align= 1;
117

    
118
    switch(s->pix_fmt){
119
    case PIX_FMT_YUV420P:
120
    case PIX_FMT_YUYV422:
121
    case PIX_FMT_UYVY422:
122
    case PIX_FMT_YUV422P:
123
    case PIX_FMT_YUV444P:
124
    case PIX_FMT_GRAY8:
125
    case PIX_FMT_GRAY16BE:
126
    case PIX_FMT_GRAY16LE:
127
    case PIX_FMT_YUVJ420P:
128
    case PIX_FMT_YUVJ422P:
129
    case PIX_FMT_YUVJ444P:
130
    case PIX_FMT_YUVA420P:
131
        w_align= 16; //FIXME check for non mpeg style codecs and use less alignment
132
        h_align= 16;
133
        break;
134
    case PIX_FMT_YUV411P:
135
    case PIX_FMT_UYYVYY411:
136
        w_align=32;
137
        h_align=8;
138
        break;
139
    case PIX_FMT_YUV410P:
140
        if(s->codec_id == CODEC_ID_SVQ1){
141
            w_align=64;
142
            h_align=64;
143
        }
144
    case PIX_FMT_RGB555:
145
        if(s->codec_id == CODEC_ID_RPZA){
146
            w_align=4;
147
            h_align=4;
148
        }
149
    case PIX_FMT_PAL8:
150
        if(s->codec_id == CODEC_ID_SMC){
151
            w_align=4;
152
            h_align=4;
153
        }
154
        break;
155
    case PIX_FMT_BGR24:
156
        if((s->codec_id == CODEC_ID_MSZH) || (s->codec_id == CODEC_ID_ZLIB)){
157
            w_align=4;
158
            h_align=4;
159
        }
160
        break;
161
    default:
162
        w_align= 1;
163
        h_align= 1;
164
        break;
165
    }
166

    
167
    *width = ALIGN(*width , w_align);
168
    *height= ALIGN(*height, h_align);
169
}
170

    
171
int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h){
172
    if((int)w>0 && (int)h>0 && (w+128)*(uint64_t)(h+128) < INT_MAX/4)
173
        return 0;
174

    
175
    av_log(av_log_ctx, AV_LOG_ERROR, "picture size invalid (%ux%u)\n", w, h);
176
    return -1;
177
}
178

    
179
int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic){
180
    int i;
181
    int w= s->width;
182
    int h= s->height;
183
    InternalBuffer *buf;
184
    int *picture_number;
185

    
186
    if(pic->data[0]!=NULL) {
187
        av_log(s, AV_LOG_ERROR, "pic->data[0]!=NULL in avcodec_default_get_buffer\n");
188
        return -1;
189
    }
190
    if(s->internal_buffer_count >= INTERNAL_BUFFER_SIZE) {
191
        av_log(s, AV_LOG_ERROR, "internal_buffer_count overflow (missing release_buffer?)\n");
192
        return -1;
193
    }
194

    
195
    if(avcodec_check_dimensions(s,w,h))
196
        return -1;
197

    
198
    if(s->internal_buffer==NULL){
199
        s->internal_buffer= av_mallocz((INTERNAL_BUFFER_SIZE+1)*sizeof(InternalBuffer));
200
    }
201
#if 0
202
    s->internal_buffer= av_fast_realloc(
203
        s->internal_buffer,
204
        &s->internal_buffer_size,
205
        sizeof(InternalBuffer)*FFMAX(99,  s->internal_buffer_count+1)/*FIXME*/
206
        );
207
#endif
208

    
209
    buf= &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count];
210
    picture_number= &(((InternalBuffer*)s->internal_buffer)[INTERNAL_BUFFER_SIZE]).last_pic_num; //FIXME ugly hack
211
    (*picture_number)++;
212

    
213
    if(buf->base[0] && (buf->width != w || buf->height != h || buf->pix_fmt != s->pix_fmt)){
214
        for(i=0; i<4; i++){
215
            av_freep(&buf->base[i]);
216
            buf->data[i]= NULL;
217
        }
218
    }
219

    
220
    if(buf->base[0]){
221
        pic->age= *picture_number - buf->last_pic_num;
222
        buf->last_pic_num= *picture_number;
223
    }else{
224
        int h_chroma_shift, v_chroma_shift;
225
        int size[4] = {0};
226
        int tmpsize;
227
        AVPicture picture;
228

    
229
        avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
230

    
231
        avcodec_align_dimensions(s, &w, &h);
232

    
233
        if(!(s->flags&CODEC_FLAG_EMU_EDGE)){
234
            w+= EDGE_WIDTH*2;
235
            h+= EDGE_WIDTH*2;
236
        }
237
        avcodec_align_dimensions(s, &w, &h);
238

    
239
        ff_fill_linesize(&picture, s->pix_fmt, w);
240

    
241
        for (i=0; i<4; i++)
242
            picture.linesize[i] = ALIGN(picture.linesize[i], STRIDE_ALIGN);
243

    
244
        tmpsize = ff_fill_pointer(&picture, NULL, s->pix_fmt, h);
245

    
246
        for (i=0; i<3 && picture.data[i+1]; i++)
247
            size[i] = picture.data[i+1] - picture.data[i];
248
        size[i] = tmpsize - (picture.data[i] - picture.data[0]);
249

    
250
        buf->last_pic_num= -256*256*256*64;
251
        memset(buf->base, 0, sizeof(buf->base));
252
        memset(buf->data, 0, sizeof(buf->data));
253

    
254
        for(i=0; i<4 && size[i]; i++){
255
            const int h_shift= i==0 ? 0 : h_chroma_shift;
256
            const int v_shift= i==0 ? 0 : v_chroma_shift;
257

    
258
            buf->linesize[i]= picture.linesize[i];
259

    
260
            buf->base[i]= av_malloc(size[i]+16); //FIXME 16
261
            if(buf->base[i]==NULL) return -1;
262
            memset(buf->base[i], 128, size[i]);
263

    
264
            // no edge if EDEG EMU or not planar YUV, we check for PAL8 redundantly to protect against a exploitable bug regression ...
265
            if((s->flags&CODEC_FLAG_EMU_EDGE) || (s->pix_fmt == PIX_FMT_PAL8) || !size[2])
266
                buf->data[i] = buf->base[i];
267
            else
268
                buf->data[i] = buf->base[i] + ALIGN((buf->linesize[i]*EDGE_WIDTH>>v_shift) + (EDGE_WIDTH>>h_shift), STRIDE_ALIGN);
269
        }
270
        buf->width  = s->width;
271
        buf->height = s->height;
272
        buf->pix_fmt= s->pix_fmt;
273
        pic->age= 256*256*256*64;
274
    }
275
    pic->type= FF_BUFFER_TYPE_INTERNAL;
276

    
277
    for(i=0; i<4; i++){
278
        pic->base[i]= buf->base[i];
279
        pic->data[i]= buf->data[i];
280
        pic->linesize[i]= buf->linesize[i];
281
    }
282
    s->internal_buffer_count++;
283

    
284
    if(s->debug&FF_DEBUG_BUFFERS)
285
        av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p, %d buffers used\n", pic, s->internal_buffer_count);
286

    
287
    return 0;
288
}
289

    
290
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic){
291
    int i;
292
    InternalBuffer *buf, *last;
293

    
294
    assert(pic->type==FF_BUFFER_TYPE_INTERNAL);
295
    assert(s->internal_buffer_count);
296

    
297
    buf = NULL; /* avoids warning */
298
    for(i=0; i<s->internal_buffer_count; i++){ //just 3-5 checks so is not worth to optimize
299
        buf= &((InternalBuffer*)s->internal_buffer)[i];
300
        if(buf->data[0] == pic->data[0])
301
            break;
302
    }
303
    assert(i < s->internal_buffer_count);
304
    s->internal_buffer_count--;
305
    last = &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count];
306

    
307
    FFSWAP(InternalBuffer, *buf, *last);
308

    
309
    for(i=0; i<4; i++){
310
        pic->data[i]=NULL;
311
//        pic->base[i]=NULL;
312
    }
313
//printf("R%X\n", pic->opaque);
314

    
315
    if(s->debug&FF_DEBUG_BUFFERS)
316
        av_log(s, AV_LOG_DEBUG, "default_release_buffer called on pic %p, %d buffers used\n", pic, s->internal_buffer_count);
317
}
318

    
319
int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic){
320
    AVFrame temp_pic;
321
    int i;
322

    
323
    /* If no picture return a new buffer */
324
    if(pic->data[0] == NULL) {
325
        /* We will copy from buffer, so must be readable */
326
        pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
327
        return s->get_buffer(s, pic);
328
    }
329

    
330
    /* If internal buffer type return the same buffer */
331
    if(pic->type == FF_BUFFER_TYPE_INTERNAL)
332
        return 0;
333

    
334
    /*
335
     * Not internal type and reget_buffer not overridden, emulate cr buffer
336
     */
337
    temp_pic = *pic;
338
    for(i = 0; i < 4; i++)
339
        pic->data[i] = pic->base[i] = NULL;
340
    pic->opaque = NULL;
341
    /* Allocate new frame */
342
    if (s->get_buffer(s, pic))
343
        return -1;
344
    /* Copy image data from old buffer to new buffer */
345
    av_picture_copy((AVPicture*)pic, (AVPicture*)&temp_pic, s->pix_fmt, s->width,
346
             s->height);
347
    s->release_buffer(s, &temp_pic); // Release old frame
348
    return 0;
349
}
350

    
351
int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count){
352
    int i;
353

    
354
    for(i=0; i<count; i++){
355
        int r= func(c, arg[i]);
356
        if(ret) ret[i]= r;
357
    }
358
    return 0;
359
}
360

    
361
enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt){
362
    return fmt[0];
363
}
364

    
365
static const char* context_to_name(void* ptr) {
366
    AVCodecContext *avc= ptr;
367

    
368
    if(avc && avc->codec && avc->codec->name)
369
        return avc->codec->name;
370
    else
371
        return "NULL";
372
}
373

    
374
#define OFFSET(x) offsetof(AVCodecContext,x)
375
#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
376
//these names are too long to be readable
377
#define V AV_OPT_FLAG_VIDEO_PARAM
378
#define A AV_OPT_FLAG_AUDIO_PARAM
379
#define S AV_OPT_FLAG_SUBTITLE_PARAM
380
#define E AV_OPT_FLAG_ENCODING_PARAM
381
#define D AV_OPT_FLAG_DECODING_PARAM
382

    
383
#define AV_CODEC_DEFAULT_BITRATE 200*1000
384

    
385
static const AVOption options[]={
386
{"b", "set bitrate (in bits/s)", OFFSET(bit_rate), FF_OPT_TYPE_INT, AV_CODEC_DEFAULT_BITRATE, INT_MIN, INT_MAX, V|E},
387
{"ab", "set bitrate (in bits/s)", OFFSET(bit_rate), FF_OPT_TYPE_INT, 64*1000, INT_MIN, INT_MAX, A|E},
388
{"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},
389
{"flags", NULL, OFFSET(flags), FF_OPT_TYPE_FLAGS, DEFAULT, 0, UINT_MAX, V|A|E|D, "flags"},
390
{"mv4", "use four motion vector by macroblock (mpeg4)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_4MV, INT_MIN, INT_MAX, V|E, "flags"},
391
{"obmc", "use overlapped block motion compensation (h263+)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_OBMC, INT_MIN, INT_MAX, V|E, "flags"},
392
{"qpel", "use 1/4 pel motion compensation", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_QPEL, INT_MIN, INT_MAX, V|E, "flags"},
393
{"loop", "use loop filter", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_LOOP_FILTER, INT_MIN, INT_MAX, V|E, "flags"},
394
{"qscale", "use fixed qscale", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_QSCALE, INT_MIN, INT_MAX, 0, "flags"},
395
{"gmc", "use gmc", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_GMC, INT_MIN, INT_MAX, V|E, "flags"},
396
{"mv0", "always try a mb with mv=<0,0>", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_MV0, INT_MIN, INT_MAX, V|E, "flags"},
397
{"part", "use data partitioning", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PART, INT_MIN, INT_MAX, V|E, "flags"},
398
{"input_preserved", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG_INPUT_PRESERVED, INT_MIN, INT_MAX, 0, "flags"},
399
{"pass1", "use internal 2pass ratecontrol in first  pass mode", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PASS1, INT_MIN, INT_MAX, 0, "flags"},
400
{"pass2", "use internal 2pass ratecontrol in second pass mode", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PASS2, INT_MIN, INT_MAX, 0, "flags"},
401
{"extern_huff", "use external huffman table (for mjpeg)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_EXTERN_HUFF, INT_MIN, INT_MAX, 0, "flags"},
402
{"gray", "only decode/encode grayscale", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_GRAY, INT_MIN, INT_MAX, V|E|D, "flags"},
403
{"emu_edge", "don't draw edges", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_EMU_EDGE, INT_MIN, INT_MAX, 0, "flags"},
404
{"psnr", "error[?] variables will be set during encoding", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PSNR, INT_MIN, INT_MAX, V|E, "flags"},
405
{"truncated", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG_TRUNCATED, INT_MIN, INT_MAX, 0, "flags"},
406
{"naq", "normalize adaptive quantization", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_NORMALIZE_AQP, INT_MIN, INT_MAX, V|E, "flags"},
407
{"ildct", "use interlaced dct", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_INTERLACED_DCT, INT_MIN, INT_MAX, V|E, "flags"},
408
{"low_delay", "force low delay", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_LOW_DELAY, INT_MIN, INT_MAX, V|D|E, "flags"},
409
{"alt", "enable alternate scantable (mpeg2/mpeg4)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_ALT_SCAN, INT_MIN, INT_MAX, V|E, "flags"},
410
#if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0)
411
{"trell", "use trellis quantization", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_TRELLIS_QUANT, INT_MIN, INT_MAX, V|E, "flags"},
412
#endif
413
{"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"},
414
{"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"},
415
{"aic", "h263 advanced intra coding / mpeg4 ac prediction", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_AC_PRED, INT_MIN, INT_MAX, V|E, "flags"},
416
{"umv", "use unlimited motion vectors", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_H263P_UMV, INT_MIN, INT_MAX, V|E, "flags"},
417
{"cbp", "use rate distortion optimization for cbp", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_CBP_RD, INT_MIN, INT_MAX, V|E, "flags"},
418
{"qprd", "use rate distortion optimization for qp selection", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_QP_RD, INT_MIN, INT_MAX, V|E, "flags"},
419
{"aiv", "h263 alternative inter vlc", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_H263P_AIV, INT_MIN, INT_MAX, V|E, "flags"},
420
{"slice", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG_H263P_SLICE_STRUCT, INT_MIN, INT_MAX, V|E, "flags"},
421
{"ilme", "interlaced motion estimation", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_INTERLACED_ME, INT_MIN, INT_MAX, V|E, "flags"},
422
{"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"},
423
{"cgop", "closed gop", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_CLOSED_GOP, INT_MIN, INT_MAX, V|E, "flags"},
424
{"fast", "allow non spec compliant speedup tricks", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_FAST, INT_MIN, INT_MAX, V|E, "flags2"},
425
{"sgop", "strictly enforce gop size", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_STRICT_GOP, INT_MIN, INT_MAX, V|E, "flags2"},
426
{"noout", "skip bitstream encoding", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_NO_OUTPUT, INT_MIN, INT_MAX, V|E, "flags2"},
427
{"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"},
428
{"sub_id", NULL, OFFSET(sub_id), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
429
{"me_method", "set motion estimation method", OFFSET(me_method), FF_OPT_TYPE_INT, ME_EPZS, INT_MIN, INT_MAX, V|E, "me_method"},
430
#if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0)
431
{"me", "set motion estimation method (deprecated, use me_method instead)", OFFSET(me_method), FF_OPT_TYPE_INT, ME_EPZS, INT_MIN, INT_MAX, V|E, "me_method"},
432
#endif
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
#if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0)
467
{"rtp_mode", NULL, OFFSET(rtp_mode), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
468
#endif
469
{"ps", "rtp payload size in bits", OFFSET(rtp_payload_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
470
{"mv_bits", NULL, OFFSET(mv_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
471
{"header_bits", NULL, OFFSET(header_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
472
{"i_tex_bits", NULL, OFFSET(i_tex_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
473
{"p_tex_bits", NULL, OFFSET(p_tex_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
474
{"i_count", NULL, OFFSET(i_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
475
{"p_count", NULL, OFFSET(p_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
476
{"skip_count", NULL, OFFSET(skip_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
477
{"misc_bits", NULL, OFFSET(misc_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
478
{"frame_bits", NULL, OFFSET(frame_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
479
{"codec_tag", NULL, OFFSET(codec_tag), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
480
{"bug", "workaround not auto detected encoder bugs", OFFSET(workaround_bugs), FF_OPT_TYPE_FLAGS, FF_BUG_AUTODETECT, INT_MIN, INT_MAX, V|D, "bug"},
481
{"autodetect", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_AUTODETECT, INT_MIN, INT_MAX, V|D, "bug"},
482
{"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"},
483
{"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"},
484
{"ump4", "(autodetected if fourcc==UMP4)", 0, FF_OPT_TYPE_CONST, FF_BUG_UMP4, INT_MIN, INT_MAX, V|D, "bug"},
485
{"no_padding", "padding bug (autodetected)", 0, FF_OPT_TYPE_CONST, FF_BUG_NO_PADDING, INT_MIN, INT_MAX, V|D, "bug"},
486
{"amv", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_AMV, INT_MIN, INT_MAX, V|D, "bug"},
487
{"ac_vlc", "illegal vlc bug (autodetected per fourcc)", 0, FF_OPT_TYPE_CONST, FF_BUG_AC_VLC, INT_MIN, INT_MAX, V|D, "bug"},
488
{"qpel_chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_QPEL_CHROMA, INT_MIN, INT_MAX, V|D, "bug"},
489
{"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"},
490
{"qpel_chroma2", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_QPEL_CHROMA2, INT_MIN, INT_MAX, V|D, "bug"},
491
{"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"},
492
{"edge", "edge padding bug (autodetected per fourcc/version)", 0, FF_OPT_TYPE_CONST, FF_BUG_EDGE, INT_MIN, INT_MAX, V|D, "bug"},
493
{"hpel_chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_HPEL_CHROMA, INT_MIN, INT_MAX, V|D, "bug"},
494
{"dc_clip", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_DC_CLIP, INT_MIN, INT_MAX, V|D, "bug"},
495
{"ms", "workaround various bugs in microsofts broken decoders", 0, FF_OPT_TYPE_CONST, FF_BUG_MS, INT_MIN, INT_MAX, V|D, "bug"},
496
{"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},
497
{"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},
498
{"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"},
499
{"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"},
500
{"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"},
501
{"normal", NULL, 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_NORMAL, INT_MIN, INT_MAX, V|D|E, "strict"},
502
{"inofficial", "allow inofficial extensions", 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_INOFFICIAL, INT_MIN, INT_MAX, V|D|E, "strict"},
503
{"experimental", "allow non standardized experimental things", 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_EXPERIMENTAL, INT_MIN, INT_MAX, V|D|E, "strict"},
504
{"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},
505
{"er", "set error resilience strategy", OFFSET(error_resilience), FF_OPT_TYPE_INT, FF_ER_CAREFUL, INT_MIN, INT_MAX, A|V|D, "er"},
506
{"careful", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_CAREFUL, INT_MIN, INT_MAX, V|D, "er"},
507
{"compliant", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_COMPLIANT, INT_MIN, INT_MAX, V|D, "er"},
508
{"aggressive", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_AGGRESSIVE, INT_MIN, INT_MAX, V|D, "er"},
509
{"very_aggressive", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_VERY_AGGRESSIVE, INT_MIN, INT_MAX, V|D, "er"},
510
{"has_b_frames", NULL, OFFSET(has_b_frames), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
511
{"block_align", NULL, OFFSET(block_align), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
512
{"parse_only", NULL, OFFSET(parse_only), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
513
{"mpeg_quant", "use MPEG quantizers instead of H.263", OFFSET(mpeg_quant), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
514
{"stats_out", NULL, OFFSET(stats_out), FF_OPT_TYPE_STRING, DEFAULT, CHAR_MIN, CHAR_MAX},
515
{"stats_in", NULL, OFFSET(stats_in), FF_OPT_TYPE_STRING, DEFAULT, CHAR_MIN, CHAR_MAX},
516
{"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},
517
{"rc_qmod_amp", "experimental quantizer modulation", OFFSET(rc_qmod_amp), FF_OPT_TYPE_FLOAT, DEFAULT, -FLT_MAX, FLT_MAX, V|E},
518
{"rc_qmod_freq", "experimental quantizer modulation", OFFSET(rc_qmod_freq), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
519
{"rc_override_count", NULL, OFFSET(rc_override_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
520
{"rc_eq", "set rate control equation", OFFSET(rc_eq), FF_OPT_TYPE_STRING, DEFAULT, CHAR_MIN, CHAR_MAX, V|E},
521
{"maxrate", "set max video bitrate tolerance (in bits/s)", OFFSET(rc_max_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
522
{"minrate", "set min video bitrate tolerance (in bits/s)", OFFSET(rc_min_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
523
{"bufsize", "set ratecontrol buffer size (in bits)", OFFSET(rc_buffer_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, A|V|E},
524
{"rc_buf_aggressivity", "currently useless", OFFSET(rc_buffer_aggressivity), FF_OPT_TYPE_FLOAT, 1.0, -FLT_MAX, FLT_MAX, V|E},
525
{"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},
526
{"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},
527
{"rc_init_cplx", "initial complexity for 1-pass encoding", OFFSET(rc_initial_cplx), FF_OPT_TYPE_FLOAT, DEFAULT, -FLT_MAX, FLT_MAX, V|E},
528
{"dct", "DCT algorithm", OFFSET(dct_algo), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, V|E, "dct"},
529
{"auto", "autoselect a good one (default)", 0, FF_OPT_TYPE_CONST, FF_DCT_AUTO, INT_MIN, INT_MAX, V|E, "dct"},
530
{"fastint", "fast integer", 0, FF_OPT_TYPE_CONST, FF_DCT_FASTINT, INT_MIN, INT_MAX, V|E, "dct"},
531
{"int", "accurate integer", 0, FF_OPT_TYPE_CONST, FF_DCT_INT, INT_MIN, INT_MAX, V|E, "dct"},
532
{"mmx", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_MMX, INT_MIN, INT_MAX, V|E, "dct"},
533
{"mlib", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_MLIB, INT_MIN, INT_MAX, V|E, "dct"},
534
{"altivec", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_ALTIVEC, INT_MIN, INT_MAX, V|E, "dct"},
535
{"faan", "floating point AAN DCT", 0, FF_OPT_TYPE_CONST, FF_DCT_FAAN, INT_MIN, INT_MAX, V|E, "dct"},
536
{"lumi_mask", "compresses bright areas stronger than medium ones", OFFSET(lumi_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
537
{"tcplx_mask", "temporal complexity masking", OFFSET(temporal_cplx_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
538
{"scplx_mask", "spatial complexity masking", OFFSET(spatial_cplx_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
539
{"p_mask", "inter masking", OFFSET(p_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
540
{"dark_mask", "compresses dark areas stronger than medium ones", OFFSET(dark_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
541
{"unused", NULL, OFFSET(unused), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
542
{"idct", "select IDCT implementation", OFFSET(idct_algo), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, V|E|D, "idct"},
543
{"auto", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_AUTO, INT_MIN, INT_MAX, V|E|D, "idct"},
544
{"int", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_INT, INT_MIN, INT_MAX, V|E|D, "idct"},
545
{"simple", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLE, INT_MIN, INT_MAX, V|E|D, "idct"},
546
{"simplemmx", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEMMX, INT_MIN, INT_MAX, V|E|D, "idct"},
547
{"libmpeg2mmx", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_LIBMPEG2MMX, INT_MIN, INT_MAX, V|E|D, "idct"},
548
{"ps2", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_PS2, INT_MIN, INT_MAX, V|E|D, "idct"},
549
{"mlib", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_MLIB, INT_MIN, INT_MAX, V|E|D, "idct"},
550
{"arm", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_ARM, INT_MIN, INT_MAX, V|E|D, "idct"},
551
{"altivec", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_ALTIVEC, INT_MIN, INT_MAX, V|E|D, "idct"},
552
{"sh4", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SH4, INT_MIN, INT_MAX, V|E|D, "idct"},
553
{"simplearm", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEARM, INT_MIN, INT_MAX, V|E|D, "idct"},
554
{"simplearmv5te", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEARMV5TE, INT_MIN, INT_MAX, V|E|D, "idct"},
555
{"simplearmv6", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEARMV6, INT_MIN, INT_MAX, V|E|D, "idct"},
556
{"h264", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_H264, INT_MIN, INT_MAX, V|E|D, "idct"},
557
{"vp3", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_VP3, INT_MIN, INT_MAX, V|E|D, "idct"},
558
{"ipp", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_IPP, INT_MIN, INT_MAX, V|E|D, "idct"},
559
{"xvidmmx", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_XVIDMMX, INT_MIN, INT_MAX, V|E|D, "idct"},
560
{"faani", "floating point AAN IDCT", 0, FF_OPT_TYPE_CONST, FF_IDCT_FAAN, INT_MIN, INT_MAX, V|D|E, "idct"},
561
{"slice_count", NULL, OFFSET(slice_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
562
{"ec", "set error concealment strategy", OFFSET(error_concealment), FF_OPT_TYPE_FLAGS, 3, INT_MIN, INT_MAX, V|D, "ec"},
563
{"guess_mvs", "iterative motion vector (MV) search (slow)", 0, FF_OPT_TYPE_CONST, FF_EC_GUESS_MVS, INT_MIN, INT_MAX, V|D, "ec"},
564
{"deblock", "use strong deblock filter for damaged MBs", 0, FF_OPT_TYPE_CONST, FF_EC_DEBLOCK, INT_MIN, INT_MAX, V|D, "ec"},
565
{"bits_per_sample", NULL, OFFSET(bits_per_sample), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
566
{"pred", "prediction method", OFFSET(prediction_method), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "pred"},
567
{"left", NULL, 0, FF_OPT_TYPE_CONST, FF_PRED_LEFT, INT_MIN, INT_MAX, V|E, "pred"},
568
{"plane", NULL, 0, FF_OPT_TYPE_CONST, FF_PRED_PLANE, INT_MIN, INT_MAX, V|E, "pred"},
569
{"median", NULL, 0, FF_OPT_TYPE_CONST, FF_PRED_MEDIAN, INT_MIN, INT_MAX, V|E, "pred"},
570
{"aspect", "sample aspect ratio", OFFSET(sample_aspect_ratio), FF_OPT_TYPE_RATIONAL, DEFAULT, 0, 10, V|E},
571
{"debug", "print specific debug info", OFFSET(debug), FF_OPT_TYPE_FLAGS, DEFAULT, 0, INT_MAX, V|A|S|E|D, "debug"},
572
{"pict", "picture info", 0, FF_OPT_TYPE_CONST, FF_DEBUG_PICT_INFO, INT_MIN, INT_MAX, V|D, "debug"},
573
{"rc", "rate control", 0, FF_OPT_TYPE_CONST, FF_DEBUG_RC, INT_MIN, INT_MAX, V|E, "debug"},
574
{"bitstream", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_BITSTREAM, INT_MIN, INT_MAX, V|D, "debug"},
575
{"mb_type", "macroblock (MB) type", 0, FF_OPT_TYPE_CONST, FF_DEBUG_MB_TYPE, INT_MIN, INT_MAX, V|D, "debug"},
576
{"qp", "per-block quantization parameter (QP)", 0, FF_OPT_TYPE_CONST, FF_DEBUG_QP, INT_MIN, INT_MAX, V|D, "debug"},
577
{"mv", "motion vector", 0, FF_OPT_TYPE_CONST, FF_DEBUG_MV, INT_MIN, INT_MAX, V|D, "debug"},
578
{"dct_coeff", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_DCT_COEFF, INT_MIN, INT_MAX, V|D, "debug"},
579
{"skip", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_SKIP, INT_MIN, INT_MAX, V|D, "debug"},
580
{"startcode", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_STARTCODE, INT_MIN, INT_MAX, V|D, "debug"},
581
{"pts", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_PTS, INT_MIN, INT_MAX, V|D, "debug"},
582
{"er", "error resilience", 0, FF_OPT_TYPE_CONST, FF_DEBUG_ER, INT_MIN, INT_MAX, V|D, "debug"},
583
{"mmco", "memory management control operations (H.264)", 0, FF_OPT_TYPE_CONST, FF_DEBUG_MMCO, INT_MIN, INT_MAX, V|D, "debug"},
584
{"bugs", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_BUGS, INT_MIN, INT_MAX, V|D, "debug"},
585
{"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"},
586
{"vis_mb_type", "visualize block types", 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_MB_TYPE, INT_MIN, INT_MAX, V|D, "debug"},
587
{"buffers", "picture buffer allocations", 0, FF_OPT_TYPE_CONST, FF_DEBUG_BUFFERS, INT_MIN, INT_MAX, V|D, "debug"},
588
{"vismv", "visualize motion vectors (MVs)", OFFSET(debug_mv), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, V|D, "debug_mv"},
589
{"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"},
590
{"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"},
591
{"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"},
592
{"mb_qmin", "obsolete, use qmin", OFFSET(mb_qmin), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
593
{"mb_qmax", "obsolete, use qmax", OFFSET(mb_qmax), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
594
{"cmp", "full pel me compare function", OFFSET(me_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
595
{"subcmp", "sub pel me compare function", OFFSET(me_sub_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
596
{"mbcmp", "macroblock compare function", OFFSET(mb_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
597
{"ildctcmp", "interlaced dct compare function", OFFSET(ildct_cmp), FF_OPT_TYPE_INT, FF_CMP_VSAD, INT_MIN, INT_MAX, V|E, "cmp_func"},
598
{"dia_size", "diamond type & size for motion estimation", OFFSET(dia_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
599
{"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},
600
{"preme", "pre motion estimation", OFFSET(pre_me), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
601
{"precmp", "pre motion estimation compare function", OFFSET(me_pre_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
602
{"sad", "sum of absolute differences, fast (default)", 0, FF_OPT_TYPE_CONST, FF_CMP_SAD, INT_MIN, INT_MAX, V|E, "cmp_func"},
603
{"sse", "sum of squared errors", 0, FF_OPT_TYPE_CONST, FF_CMP_SSE, INT_MIN, INT_MAX, V|E, "cmp_func"},
604
{"satd", "sum of absolute Hadamard transformed differences", 0, FF_OPT_TYPE_CONST, FF_CMP_SATD, INT_MIN, INT_MAX, V|E, "cmp_func"},
605
{"dct", "sum of absolute DCT transformed differences", 0, FF_OPT_TYPE_CONST, FF_CMP_DCT, INT_MIN, INT_MAX, V|E, "cmp_func"},
606
{"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"},
607
{"bit", "number of bits needed for the block", 0, FF_OPT_TYPE_CONST, FF_CMP_BIT, INT_MIN, INT_MAX, V|E, "cmp_func"},
608
{"rd", "rate distortion optimal, slow", 0, FF_OPT_TYPE_CONST, FF_CMP_RD, INT_MIN, INT_MAX, V|E, "cmp_func"},
609
{"zero", "0", 0, FF_OPT_TYPE_CONST, FF_CMP_ZERO, INT_MIN, INT_MAX, V|E, "cmp_func"},
610
{"vsad", "sum of absolute vertical differences", 0, FF_OPT_TYPE_CONST, FF_CMP_VSAD, INT_MIN, INT_MAX, V|E, "cmp_func"},
611
{"vsse","sum of squared vertical differences", 0, FF_OPT_TYPE_CONST, FF_CMP_VSSE, INT_MIN, INT_MAX, V|E, "cmp_func"},
612
{"nsse", "noise preserving sum of squared differences", 0, FF_OPT_TYPE_CONST, FF_CMP_NSSE, INT_MIN, INT_MAX, V|E, "cmp_func"},
613
#ifdef CONFIG_SNOW_ENCODER
614
{"w53", "5/3 wavelet, only used in snow", 0, FF_OPT_TYPE_CONST, FF_CMP_W53, INT_MIN, INT_MAX, V|E, "cmp_func"},
615
{"w97", "9/7 wavelet, only used in snow", 0, FF_OPT_TYPE_CONST, FF_CMP_W97, INT_MIN, INT_MAX, V|E, "cmp_func"},
616
#endif
617
{"dctmax", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_DCTMAX, INT_MIN, INT_MAX, V|E, "cmp_func"},
618
{"chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_CHROMA, INT_MIN, INT_MAX, V|E, "cmp_func"},
619
{"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},
620
{"subq", "sub pel motion estimation quality", OFFSET(me_subpel_quality), FF_OPT_TYPE_INT, 8, INT_MIN, INT_MAX, V|E},
621
{"dtg_active_format", NULL, OFFSET(dtg_active_format), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
622
{"me_range", "limit motion vectors range (1023 for DivX player)", OFFSET(me_range), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
623
{"ibias", "intra quant bias", OFFSET(intra_quant_bias), FF_OPT_TYPE_INT, FF_DEFAULT_QUANT_BIAS, INT_MIN, INT_MAX, V|E},
624
{"pbias", "inter quant bias", OFFSET(inter_quant_bias), FF_OPT_TYPE_INT, FF_DEFAULT_QUANT_BIAS, INT_MIN, INT_MAX, V|E},
625
{"color_table_id", NULL, OFFSET(color_table_id), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
626
{"internal_buffer_count", NULL, OFFSET(internal_buffer_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
627
{"global_quality", NULL, OFFSET(global_quality), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
628
{"coder", NULL, OFFSET(coder_type), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "coder"},
629
{"vlc", "variable length coder / huffman coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_VLC, INT_MIN, INT_MAX, V|E, "coder"},
630
{"ac", "arithmetic coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_AC, INT_MIN, INT_MAX, V|E, "coder"},
631
{"raw", "raw (no encoding)", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_RAW, INT_MIN, INT_MAX, V|E, "coder"},
632
{"rle", "run-length coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_RLE, INT_MIN, INT_MAX, V|E, "coder"},
633
{"deflate", "deflate-based coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_DEFLATE, INT_MIN, INT_MAX, V|E, "coder"},
634
{"context", "context model", OFFSET(context_model), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
635
{"slice_flags", NULL, OFFSET(slice_flags), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
636
{"xvmc_acceleration", NULL, OFFSET(xvmc_acceleration), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
637
{"mbd", "macroblock decision algorithm (high quality mode)", OFFSET(mb_decision), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "mbd"},
638
{"simple", "use mbcmp (default)", 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_SIMPLE, INT_MIN, INT_MAX, V|E, "mbd"},
639
{"bits", "use fewest bits", 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_BITS, INT_MIN, INT_MAX, V|E, "mbd"},
640
{"rd", "use best rate distortion", 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_RD, INT_MIN, INT_MAX, V|E, "mbd"},
641
{"stream_codec_tag", NULL, OFFSET(stream_codec_tag), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
642
{"sc_threshold", "scene change threshold", OFFSET(scenechange_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
643
{"lmin", "min lagrange factor (VBR)", OFFSET(lmin), FF_OPT_TYPE_INT,  2*FF_QP2LAMBDA, 0, INT_MAX, V|E},
644
{"lmax", "max lagrange factor (VBR)", OFFSET(lmax), FF_OPT_TYPE_INT, 31*FF_QP2LAMBDA, 0, INT_MAX, V|E},
645
{"nr", "noise reduction", OFFSET(noise_reduction), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
646
{"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},
647
{"inter_threshold", NULL, OFFSET(inter_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
648
{"flags2", NULL, OFFSET(flags2), FF_OPT_TYPE_FLAGS, CODEC_FLAG2_FASTPSKIP|CODEC_FLAG2_BIT_RESERVOIR, 0, UINT_MAX, V|A|E|D, "flags2"},
649
{"error", NULL, OFFSET(error_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
650
{"antialias", "MP3 antialias algorithm", OFFSET(antialias_algo), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D, "aa"},
651
{"auto", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_AUTO, INT_MIN, INT_MAX, V|D, "aa"},
652
{"fastint", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_FASTINT, INT_MIN, INT_MAX, V|D, "aa"},
653
{"int", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_INT, INT_MIN, INT_MAX, V|D, "aa"},
654
{"float", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_FLOAT, INT_MIN, INT_MAX, V|D, "aa"},
655
{"qns", "quantizer noise shaping", OFFSET(quantizer_noise_shaping), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
656
{"threads", NULL, OFFSET(thread_count), FF_OPT_TYPE_INT, 1, INT_MIN, INT_MAX, V|E|D},
657
{"me_threshold", "motion estimaton threshold", OFFSET(me_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
658
{"mb_threshold", "macroblock threshold", OFFSET(mb_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
659
{"dc", "intra_dc_precision", OFFSET(intra_dc_precision), FF_OPT_TYPE_INT, 0, INT_MIN, INT_MAX, V|E},
660
{"nssew", "nsse weight", OFFSET(nsse_weight), FF_OPT_TYPE_INT, 8, INT_MIN, INT_MAX, V|E},
661
{"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},
662
{"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},
663
{"profile", NULL, OFFSET(profile), FF_OPT_TYPE_INT, FF_PROFILE_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "profile"},
664
{"unknown", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "profile"},
665
{"aac_main", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_AAC_MAIN, INT_MIN, INT_MAX, A|E, "profile"},
666
{"aac_low", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_AAC_LOW, INT_MIN, INT_MAX, A|E, "profile"},
667
{"aac_ssr", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_AAC_SSR, INT_MIN, INT_MAX, A|E, "profile"},
668
{"aac_ltp", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_AAC_LTP, INT_MIN, INT_MAX, A|E, "profile"},
669
{"level", NULL, OFFSET(level), FF_OPT_TYPE_INT, FF_LEVEL_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "level"},
670
{"unknown", NULL, 0, FF_OPT_TYPE_CONST, FF_LEVEL_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "level"},
671
{"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},
672
{"skip_threshold", "frame skip threshold", OFFSET(frame_skip_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
673
{"skip_factor", "frame skip factor", OFFSET(frame_skip_factor), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
674
{"skip_exp", "frame skip exponent", OFFSET(frame_skip_exp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
675
{"skipcmp", "frame skip compare function", OFFSET(frame_skip_cmp), FF_OPT_TYPE_INT, FF_CMP_DCTMAX, INT_MIN, INT_MAX, V|E, "cmp_func"},
676
{"border_mask", "increases the quantizer for macroblocks close to borders", OFFSET(border_masking), FF_OPT_TYPE_FLOAT, DEFAULT, -FLT_MAX, FLT_MAX, V|E},
677
{"mblmin", "min macroblock lagrange factor (VBR)", OFFSET(mb_lmin), FF_OPT_TYPE_INT, FF_QP2LAMBDA * 2, 1, FF_LAMBDA_MAX, V|E},
678
{"mblmax", "max macroblock lagrange factor (VBR)", OFFSET(mb_lmax), FF_OPT_TYPE_INT, FF_QP2LAMBDA * 31, 1, FF_LAMBDA_MAX, V|E},
679
{"mepc", "motion estimation bitrate penalty compensation (1.0 = 256)", OFFSET(me_penalty_compensation), FF_OPT_TYPE_INT, 256, INT_MIN, INT_MAX, V|E},
680
{"skip_loop_filter", NULL, OFFSET(skip_loop_filter), FF_OPT_TYPE_INT, AVDISCARD_DEFAULT, INT_MIN, INT_MAX, V|D, "avdiscard"},
681
{"skip_idct"       , NULL, OFFSET(skip_idct)       , FF_OPT_TYPE_INT, AVDISCARD_DEFAULT, INT_MIN, INT_MAX, V|D, "avdiscard"},
682
{"skip_frame"      , NULL, OFFSET(skip_frame)      , FF_OPT_TYPE_INT, AVDISCARD_DEFAULT, INT_MIN, INT_MAX, V|D, "avdiscard"},
683
{"none"            , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_NONE   , INT_MIN, INT_MAX, V|D, "avdiscard"},
684
{"default"         , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_DEFAULT, INT_MIN, INT_MAX, V|D, "avdiscard"},
685
{"noref"           , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_NONREF , INT_MIN, INT_MAX, V|D, "avdiscard"},
686
{"bidir"           , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_BIDIR  , INT_MIN, INT_MAX, V|D, "avdiscard"},
687
{"nokey"           , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_NONKEY , INT_MIN, INT_MAX, V|D, "avdiscard"},
688
{"all"             , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_ALL    , INT_MIN, INT_MAX, V|D, "avdiscard"},
689
{"bidir_refine", "refine the two motion vectors used in bidirectional macroblocks", OFFSET(bidir_refine), FF_OPT_TYPE_INT, DEFAULT, 0, 4, V|E},
690
{"brd_scale", "downscales frames for dynamic B-frame decision", OFFSET(brd_scale), FF_OPT_TYPE_INT, DEFAULT, 0, 10, V|E},
691
{"crf", "enables constant quality mode, and selects the quality (x264)", OFFSET(crf), FF_OPT_TYPE_FLOAT, DEFAULT, 0, 51, V|E},
692
{"cqp", "constant quantization parameter rate control method", OFFSET(cqp), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, V|E},
693
{"keyint_min", "minimum interval between IDR-frames (x264)", OFFSET(keyint_min), FF_OPT_TYPE_INT, 25, INT_MIN, INT_MAX, V|E},
694
{"refs", "reference frames to consider for motion compensation (Snow)", OFFSET(refs), FF_OPT_TYPE_INT, 1, INT_MIN, INT_MAX, V|E},
695
{"chromaoffset", "chroma qp offset from luma", OFFSET(chromaoffset), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
696
{"bframebias", "influences how often B-frames are used", OFFSET(bframebias), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
697
{"trellis", "rate-distortion optimal quantization", OFFSET(trellis), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|A|E},
698
{"directpred", "direct mv prediction mode - 0 (none), 1 (spatial), 2 (temporal)", OFFSET(directpred), FF_OPT_TYPE_INT, 2, INT_MIN, INT_MAX, V|E},
699
{"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"},
700
{"wpred", "weighted biprediction for b-frames (H.264)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_WPRED, INT_MIN, INT_MAX, V|E, "flags2"},
701
{"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"},
702
{"dct8x8", "high profile 8x8 transform (H.264)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_8X8DCT, INT_MIN, INT_MAX, V|E, "flags2"},
703
{"fastpskip", "fast pskip (H.264)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_FASTPSKIP, INT_MIN, INT_MAX, V|E, "flags2"},
704
{"aud", "access unit delimiters (H.264)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_AUD, INT_MIN, INT_MAX, V|E, "flags2"},
705
{"brdo", "b-frame rate-distortion optimization", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_BRDO, INT_MIN, INT_MAX, V|E, "flags2"},
706
{"skiprd", "RD optimal MB level residual skipping", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_SKIP_RD, INT_MIN, INT_MAX, V|E, "flags2"},
707
{"complexityblur", "reduce fluctuations in qp (before curve compression)", OFFSET(complexityblur), FF_OPT_TYPE_FLOAT, 20.0, FLT_MIN, FLT_MAX, V|E},
708
{"deblockalpha", "in-loop deblocking filter alphac0 parameter", OFFSET(deblockalpha), FF_OPT_TYPE_INT, DEFAULT, -6, 6, V|E},
709
{"deblockbeta", "in-loop deblocking filter beta parameter", OFFSET(deblockbeta), FF_OPT_TYPE_INT, DEFAULT, -6, 6, V|E},
710
{"partitions", "macroblock subpartition sizes to consider", OFFSET(partitions), FF_OPT_TYPE_FLAGS, DEFAULT, INT_MIN, INT_MAX, V|E, "partitions"},
711
{"parti4x4", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_I4X4, INT_MIN, INT_MAX, V|E, "partitions"},
712
{"parti8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_I8X8, INT_MIN, INT_MAX, V|E, "partitions"},
713
{"partp4x4", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_P4X4, INT_MIN, INT_MAX, V|E, "partitions"},
714
{"partp8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_P8X8, INT_MIN, INT_MAX, V|E, "partitions"},
715
{"partb8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_B8X8, INT_MIN, INT_MAX, V|E, "partitions"},
716
{"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},
717
{"mv0_threshold", NULL, OFFSET(mv0_threshold), FF_OPT_TYPE_INT, 256, 0, INT_MAX, V|E},
718
{"ivlc", "intra vlc table", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_INTRA_VLC, INT_MIN, INT_MAX, V|E, "flags2"},
719
{"b_sensitivity", "adjusts sensitivity of b_frame_strategy 1", OFFSET(b_sensitivity), FF_OPT_TYPE_INT, 40, 1, INT_MAX, V|E},
720
{"compression_level", NULL, OFFSET(compression_level), FF_OPT_TYPE_INT, FF_COMPRESSION_DEFAULT, INT_MIN, INT_MAX, V|A|E},
721
{"use_lpc", "sets whether to use LPC mode (FLAC)", OFFSET(use_lpc), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
722
{"lpc_coeff_precision", "LPC coefficient precision (FLAC)", OFFSET(lpc_coeff_precision), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, A|E},
723
{"min_prediction_order", NULL, OFFSET(min_prediction_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
724
{"max_prediction_order", NULL, OFFSET(max_prediction_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
725
{"prediction_order_method", "search method for selecting prediction order", OFFSET(prediction_order_method), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
726
{"min_partition_order", NULL, OFFSET(min_partition_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
727
{"max_partition_order", NULL, OFFSET(max_partition_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
728
{"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},
729
{"drop_frame_timecode", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_DROP_FRAME_TIMECODE, INT_MIN, INT_MAX, V|E, "flags2"},
730
{"non_linear_q", "use non linear quantizer", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_NON_LINEAR_QUANT, INT_MIN, INT_MAX, V|E, "flags2"},
731
{"request_channels", "set desired number of audio channels", OFFSET(request_channels), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, A|D},
732
{"drc_scale", "percentage of dynamic range compression to apply", OFFSET(drc_scale), FF_OPT_TYPE_FLOAT, 1.0, 0.0, 1.0, A|D},
733
{"reservoir", "use bit reservoir", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_BIT_RESERVOIR, INT_MIN, INT_MAX, A|E, "flags2"},
734
{NULL},
735
};
736

    
737
#undef A
738
#undef V
739
#undef S
740
#undef E
741
#undef D
742
#undef DEFAULT
743

    
744
static const AVClass av_codec_context_class = { "AVCodecContext", context_to_name, options };
745

    
746
void avcodec_get_context_defaults2(AVCodecContext *s, enum CodecType codec_type){
747
    int flags=0;
748
    memset(s, 0, sizeof(AVCodecContext));
749

    
750
    s->av_class= &av_codec_context_class;
751

    
752
    s->codec_type = codec_type;
753
    if(codec_type == CODEC_TYPE_AUDIO)
754
        flags= AV_OPT_FLAG_AUDIO_PARAM;
755
    else if(codec_type == CODEC_TYPE_VIDEO)
756
        flags= AV_OPT_FLAG_VIDEO_PARAM;
757
    else if(codec_type == CODEC_TYPE_SUBTITLE)
758
        flags= AV_OPT_FLAG_SUBTITLE_PARAM;
759
    av_opt_set_defaults2(s, flags, flags);
760

    
761
    s->rc_eq= av_strdup("tex^qComp");
762
    s->time_base= (AVRational){0,1};
763
    s->get_buffer= avcodec_default_get_buffer;
764
    s->release_buffer= avcodec_default_release_buffer;
765
    s->get_format= avcodec_default_get_format;
766
    s->execute= avcodec_default_execute;
767
    s->sample_aspect_ratio= (AVRational){0,1};
768
    s->pix_fmt= PIX_FMT_NONE;
769
    s->sample_fmt= SAMPLE_FMT_S16; // FIXME: set to NONE
770

    
771
    s->palctrl = NULL;
772
    s->reget_buffer= avcodec_default_reget_buffer;
773
}
774

    
775
AVCodecContext *avcodec_alloc_context2(enum CodecType codec_type){
776
    AVCodecContext *avctx= av_malloc(sizeof(AVCodecContext));
777

    
778
    if(avctx==NULL) return NULL;
779

    
780
    avcodec_get_context_defaults2(avctx, codec_type);
781

    
782
    return avctx;
783
}
784

    
785
void avcodec_get_context_defaults(AVCodecContext *s){
786
    avcodec_get_context_defaults2(s, CODEC_TYPE_UNKNOWN);
787
}
788

    
789
AVCodecContext *avcodec_alloc_context(void){
790
    return avcodec_alloc_context2(CODEC_TYPE_UNKNOWN);
791
}
792

    
793
void avcodec_get_frame_defaults(AVFrame *pic){
794
    memset(pic, 0, sizeof(AVFrame));
795

    
796
    pic->pts= AV_NOPTS_VALUE;
797
    pic->key_frame= 1;
798
}
799

    
800
AVFrame *avcodec_alloc_frame(void){
801
    AVFrame *pic= av_malloc(sizeof(AVFrame));
802

    
803
    if(pic==NULL) return NULL;
804

    
805
    avcodec_get_frame_defaults(pic);
806

    
807
    return pic;
808
}
809

    
810
int attribute_align_arg avcodec_open(AVCodecContext *avctx, AVCodec *codec)
811
{
812
    int ret= -1;
813

    
814
    entangled_thread_counter++;
815
    if(entangled_thread_counter != 1){
816
        av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
817
        goto end;
818
    }
819

    
820
    if(avctx->codec || !codec)
821
        goto end;
822

    
823
    if (codec->priv_data_size > 0) {
824
        avctx->priv_data = av_mallocz(codec->priv_data_size);
825
        if (!avctx->priv_data) {
826
            ret = AVERROR(ENOMEM);
827
            goto end;
828
        }
829
    } else {
830
        avctx->priv_data = NULL;
831
    }
832

    
833
    if(avctx->coded_width && avctx->coded_height)
834
        avcodec_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
835
    else if(avctx->width && avctx->height)
836
        avcodec_set_dimensions(avctx, avctx->width, avctx->height);
837

    
838
    if((avctx->coded_width||avctx->coded_height) && avcodec_check_dimensions(avctx,avctx->coded_width,avctx->coded_height)){
839
        av_freep(&avctx->priv_data);
840
        ret = AVERROR(EINVAL);
841
        goto end;
842
    }
843

    
844
    avctx->codec = codec;
845
    avctx->codec_id = codec->id;
846
    avctx->frame_number = 0;
847
    if(avctx->codec->init){
848
        ret = avctx->codec->init(avctx);
849
        if (ret < 0) {
850
            av_freep(&avctx->priv_data);
851
            avctx->codec= NULL;
852
            goto end;
853
        }
854
    }
855
    ret=0;
856
end:
857
    entangled_thread_counter--;
858
    return ret;
859
}
860

    
861
int attribute_align_arg avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
862
                         const short *samples)
863
{
864
    if(buf_size < FF_MIN_BUFFER_SIZE && 0){
865
        av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
866
        return -1;
867
    }
868
    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || samples){
869
        int ret = avctx->codec->encode(avctx, buf, buf_size, (void *)samples);
870
        avctx->frame_number++;
871
        return ret;
872
    }else
873
        return 0;
874
}
875

    
876
int attribute_align_arg avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
877
                         const AVFrame *pict)
878
{
879
    if(buf_size < FF_MIN_BUFFER_SIZE){
880
        av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
881
        return -1;
882
    }
883
    if(avcodec_check_dimensions(avctx,avctx->width,avctx->height))
884
        return -1;
885
    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || pict){
886
        int ret = avctx->codec->encode(avctx, buf, buf_size, (void *)pict);
887
        avctx->frame_number++;
888
        emms_c(); //needed to avoid an emms_c() call before every return;
889

    
890
        return ret;
891
    }else
892
        return 0;
893
}
894

    
895
int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
896
                            const AVSubtitle *sub)
897
{
898
    int ret;
899
    ret = avctx->codec->encode(avctx, buf, buf_size, (void *)sub);
900
    avctx->frame_number++;
901
    return ret;
902
}
903

    
904
int attribute_align_arg avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
905
                         int *got_picture_ptr,
906
                         const uint8_t *buf, int buf_size)
907
{
908
    int ret;
909

    
910
    *got_picture_ptr= 0;
911
    if((avctx->coded_width||avctx->coded_height) && avcodec_check_dimensions(avctx,avctx->coded_width,avctx->coded_height))
912
        return -1;
913
    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || buf_size){
914
        ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
915
                                buf, buf_size);
916

    
917
        emms_c(); //needed to avoid an emms_c() call before every return;
918

    
919
        if (*got_picture_ptr)
920
            avctx->frame_number++;
921
    }else
922
        ret= 0;
923

    
924
    return ret;
925
}
926

    
927
int attribute_align_arg avcodec_decode_audio2(AVCodecContext *avctx, int16_t *samples,
928
                         int *frame_size_ptr,
929
                         const uint8_t *buf, int buf_size)
930
{
931
    int ret;
932

    
933
    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || buf_size){
934
        //FIXME remove the check below _after_ ensuring that all audio check that the available space is enough
935
        if(*frame_size_ptr < AVCODEC_MAX_AUDIO_FRAME_SIZE){
936
            av_log(avctx, AV_LOG_ERROR, "buffer smaller than AVCODEC_MAX_AUDIO_FRAME_SIZE\n");
937
            return -1;
938
        }
939
        if(*frame_size_ptr < FF_MIN_BUFFER_SIZE ||
940
        *frame_size_ptr < avctx->channels * avctx->frame_size * sizeof(int16_t)){
941
            av_log(avctx, AV_LOG_ERROR, "buffer %d too small\n", *frame_size_ptr);
942
            return -1;
943
        }
944

    
945
        ret = avctx->codec->decode(avctx, samples, frame_size_ptr,
946
                                buf, buf_size);
947
        avctx->frame_number++;
948
    }else{
949
        ret= 0;
950
        *frame_size_ptr=0;
951
    }
952
    return ret;
953
}
954

    
955
#if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0)
956
int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples,
957
                         int *frame_size_ptr,
958
                         const uint8_t *buf, int buf_size){
959
    *frame_size_ptr= AVCODEC_MAX_AUDIO_FRAME_SIZE;
960
    return avcodec_decode_audio2(avctx, samples, frame_size_ptr, buf, buf_size);
961
}
962
#endif
963

    
964
int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
965
                            int *got_sub_ptr,
966
                            const uint8_t *buf, int buf_size)
967
{
968
    int ret;
969

    
970
    *got_sub_ptr = 0;
971
    ret = avctx->codec->decode(avctx, sub, got_sub_ptr,
972
                               buf, buf_size);
973
    if (*got_sub_ptr)
974
        avctx->frame_number++;
975
    return ret;
976
}
977

    
978
int avcodec_close(AVCodecContext *avctx)
979
{
980
    entangled_thread_counter++;
981
    if(entangled_thread_counter != 1){
982
        av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
983
        entangled_thread_counter--;
984
        return -1;
985
    }
986

    
987
    if (ENABLE_THREADS && avctx->thread_opaque)
988
        avcodec_thread_free(avctx);
989
    if (avctx->codec->close)
990
        avctx->codec->close(avctx);
991
    avcodec_default_free_buffers(avctx);
992
    av_freep(&avctx->priv_data);
993
    av_freep(&avctx->rc_eq);
994
    avctx->codec = NULL;
995
    entangled_thread_counter--;
996
    return 0;
997
}
998

    
999
AVCodec *avcodec_find_encoder(enum CodecID id)
1000
{
1001
    AVCodec *p;
1002
    p = first_avcodec;
1003
    while (p) {
1004
        if (p->encode != NULL && p->id == id)
1005
            return p;
1006
        p = p->next;
1007
    }
1008
    return NULL;
1009
}
1010

    
1011
AVCodec *avcodec_find_encoder_by_name(const char *name)
1012
{
1013
    AVCodec *p;
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
    p = first_avcodec;
1039
    while (p) {
1040
        if (p->decode != NULL && strcmp(name,p->name) == 0)
1041
            return p;
1042
        p = p->next;
1043
    }
1044
    return NULL;
1045
}
1046

    
1047
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1048
{
1049
    const char *codec_name;
1050
    AVCodec *p;
1051
    char buf1[32];
1052
    char channels_str[100];
1053
    int bitrate;
1054
    AVRational display_aspect_ratio;
1055

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

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

    
1091
    switch(enc->codec_type) {
1092
    case CODEC_TYPE_VIDEO:
1093
        snprintf(buf, buf_size,
1094
                 "Video: %s%s",
1095
                 codec_name, enc->mb_decision ? " (hq)" : "");
1096
        if (enc->pix_fmt != PIX_FMT_NONE) {
1097
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1098
                     ", %s",
1099
                     avcodec_get_pix_fmt_name(enc->pix_fmt));
1100
        }
1101
        if (enc->width) {
1102
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1103
                     ", %dx%d",
1104
                     enc->width, enc->height);
1105
            if (enc->sample_aspect_ratio.num) {
1106
                av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
1107
                          enc->width*enc->sample_aspect_ratio.num,
1108
                          enc->height*enc->sample_aspect_ratio.den,
1109
                          1024*1024);
1110
                snprintf(buf + strlen(buf), buf_size - strlen(buf),
1111
                         " [PAR %d:%d DAR %d:%d]",
1112
                         enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
1113
                         display_aspect_ratio.num, display_aspect_ratio.den);
1114
            }
1115
            if(av_log_get_level() >= AV_LOG_DEBUG){
1116
                int g= ff_gcd(enc->time_base.num, enc->time_base.den);
1117
                snprintf(buf + strlen(buf), buf_size - strlen(buf),
1118
                     ", %d/%d",
1119
                     enc->time_base.num/g, enc->time_base.den/g);
1120
            }
1121
        }
1122
        if (encode) {
1123
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1124
                     ", q=%d-%d", enc->qmin, enc->qmax);
1125
        }
1126
        bitrate = enc->bit_rate;
1127
        break;
1128
    case CODEC_TYPE_AUDIO:
1129
        snprintf(buf, buf_size,
1130
                 "Audio: %s",
1131
                 codec_name);
1132
        switch (enc->channels) {
1133
            case 1:
1134
                strcpy(channels_str, "mono");
1135
                break;
1136
            case 2:
1137
                strcpy(channels_str, "stereo");
1138
                break;
1139
            case 6:
1140
                strcpy(channels_str, "5:1");
1141
                break;
1142
            default:
1143
                snprintf(channels_str, sizeof(channels_str), "%d channels", enc->channels);
1144
                break;
1145
        }
1146
        if (enc->sample_rate) {
1147
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1148
                     ", %d Hz, %s",
1149
                     enc->sample_rate,
1150
                     channels_str);
1151
        }
1152
        if (enc->sample_fmt != SAMPLE_FMT_NONE) {
1153
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1154
                     ", %s", avcodec_get_sample_fmt_name(enc->sample_fmt));
1155
        }
1156

    
1157
        /* for PCM codecs, compute bitrate directly */
1158
        switch(enc->codec_id) {
1159
        case CODEC_ID_PCM_S32LE:
1160
        case CODEC_ID_PCM_S32BE:
1161
        case CODEC_ID_PCM_U32LE:
1162
        case CODEC_ID_PCM_U32BE:
1163
        case CODEC_ID_PCM_F32BE:
1164
            bitrate = enc->sample_rate * enc->channels * 32;
1165
            break;
1166
        case CODEC_ID_PCM_S24LE:
1167
        case CODEC_ID_PCM_S24BE:
1168
        case CODEC_ID_PCM_U24LE:
1169
        case CODEC_ID_PCM_U24BE:
1170
        case CODEC_ID_PCM_S24DAUD:
1171
            bitrate = enc->sample_rate * enc->channels * 24;
1172
            break;
1173
        case CODEC_ID_PCM_S16LE:
1174
        case CODEC_ID_PCM_S16BE:
1175
        case CODEC_ID_PCM_S16LE_PLANAR:
1176
        case CODEC_ID_PCM_U16LE:
1177
        case CODEC_ID_PCM_U16BE:
1178
            bitrate = enc->sample_rate * enc->channels * 16;
1179
            break;
1180
        case CODEC_ID_PCM_S8:
1181
        case CODEC_ID_PCM_U8:
1182
        case CODEC_ID_PCM_ALAW:
1183
        case CODEC_ID_PCM_MULAW:
1184
        case CODEC_ID_PCM_ZORK:
1185
            bitrate = enc->sample_rate * enc->channels * 8;
1186
            break;
1187
        default:
1188
            bitrate = enc->bit_rate;
1189
            break;
1190
        }
1191
        break;
1192
    case CODEC_TYPE_DATA:
1193
        snprintf(buf, buf_size, "Data: %s", codec_name);
1194
        bitrate = enc->bit_rate;
1195
        break;
1196
    case CODEC_TYPE_SUBTITLE:
1197
        snprintf(buf, buf_size, "Subtitle: %s", codec_name);
1198
        bitrate = enc->bit_rate;
1199
        break;
1200
    case CODEC_TYPE_ATTACHMENT:
1201
        snprintf(buf, buf_size, "Attachment: %s", codec_name);
1202
        bitrate = enc->bit_rate;
1203
        break;
1204
    default:
1205
        snprintf(buf, buf_size, "Invalid Codec type %d", enc->codec_type);
1206
        return;
1207
    }
1208
    if (encode) {
1209
        if (enc->flags & CODEC_FLAG_PASS1)
1210
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1211
                     ", pass 1");
1212
        if (enc->flags & CODEC_FLAG_PASS2)
1213
            snprintf(buf + strlen(buf), buf_size - strlen(buf),
1214
                     ", pass 2");
1215
    }
1216
    if (bitrate != 0) {
1217
        snprintf(buf + strlen(buf), buf_size - strlen(buf),
1218
                 ", %d kb/s", bitrate / 1000);
1219
    }
1220
}
1221

    
1222
unsigned avcodec_version( void )
1223
{
1224
  return LIBAVCODEC_VERSION_INT;
1225
}
1226

    
1227
#if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0)
1228
unsigned avcodec_build( void )
1229
{
1230
  return LIBAVCODEC_BUILD;
1231
}
1232
#endif
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
        return 32;
1314
    default:
1315
        return 0;
1316
    }
1317
}
1318

    
1319
int av_get_bits_per_sample_format(enum SampleFormat sample_fmt) {
1320
    switch (sample_fmt) {
1321
    case SAMPLE_FMT_U8:
1322
        return 8;
1323
    case SAMPLE_FMT_S16:
1324
        return 16;
1325
    case SAMPLE_FMT_S24:
1326
        return 24;
1327
    case SAMPLE_FMT_S32:
1328
    case SAMPLE_FMT_FLT:
1329
        return 32;
1330
    default:
1331
        return 0;
1332
    }
1333
}
1334

    
1335
#if !defined(HAVE_THREADS)
1336
int avcodec_thread_init(AVCodecContext *s, int thread_count){
1337
    return -1;
1338
}
1339
#endif
1340

    
1341
unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1342
{
1343
    unsigned int n = 0;
1344

    
1345
    while(v >= 0xff) {
1346
        *s++ = 0xff;
1347
        v -= 0xff;
1348
        n++;
1349
    }
1350
    *s = v;
1351
    n++;
1352
    return n;
1353
}
1354

    
1355
/* Wrapper to work around the lack of mkstemp() on mingw/cygin.
1356
 * Also, tries to create file in /tmp first, if possible.
1357
 * *prefix can be a character constant; *filename will be allocated internally.
1358
 * Returns file descriptor of opened file (or -1 on error)
1359
 * and opened file name in **filename. */
1360
int av_tempfile(char *prefix, char **filename) {
1361
    int fd=-1;
1362
#if !defined(HAVE_MKSTEMP)
1363
    *filename = tempnam(".", prefix);
1364
#else
1365
    size_t len = strlen(prefix) + 12; /* room for "/tmp/" and "XXXXXX\0" */
1366
    *filename = av_malloc(len);
1367
#endif
1368
    /* -----common section-----*/
1369
    if (*filename == NULL) {
1370
        av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot allocate file name\n");
1371
        return -1;
1372
    }
1373
#if !defined(HAVE_MKSTEMP)
1374
    fd = open(*filename, O_RDWR | O_BINARY | O_CREAT, 0444);
1375
#else
1376
    snprintf(*filename, len, "/tmp/%sXXXXXX", prefix);
1377
    fd = mkstemp(*filename);
1378
    if (fd < 0) {
1379
        snprintf(*filename, len, "./%sXXXXXX", prefix);
1380
        fd = mkstemp(*filename);
1381
    }
1382
#endif
1383
    /* -----common section-----*/
1384
    if (fd < 0) {
1385
        av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot open temporary file %s\n", *filename);
1386
        return -1;
1387
    }
1388
    return fd; /* success */
1389
}
1390

    
1391
typedef struct {
1392
    const char *abbr;
1393
    int width, height;
1394
} VideoFrameSizeAbbr;
1395

    
1396
typedef struct {
1397
    const char *abbr;
1398
    int rate_num, rate_den;
1399
} VideoFrameRateAbbr;
1400

    
1401
static const VideoFrameSizeAbbr video_frame_size_abbrs[] = {
1402
    { "ntsc",      720, 480 },
1403
    { "pal",       720, 576 },
1404
    { "qntsc",     352, 240 }, /* VCD compliant NTSC */
1405
    { "qpal",      352, 288 }, /* VCD compliant PAL */
1406
    { "sntsc",     640, 480 }, /* square pixel NTSC */
1407
    { "spal",      768, 576 }, /* square pixel PAL */
1408
    { "film",      352, 240 },
1409
    { "ntsc-film", 352, 240 },
1410
    { "sqcif",     128,  96 },
1411
    { "qcif",      176, 144 },
1412
    { "cif",       352, 288 },
1413
    { "4cif",      704, 576 },
1414
    { "qqvga",     160, 120 },
1415
    { "qvga",      320, 240 },
1416
    { "vga",       640, 480 },
1417
    { "svga",      800, 600 },
1418
    { "xga",      1024, 768 },
1419
    { "uxga",     1600,1200 },
1420
    { "qxga",     2048,1536 },
1421
    { "sxga",     1280,1024 },
1422
    { "qsxga",    2560,2048 },
1423
    { "hsxga",    5120,4096 },
1424
    { "wvga",      852, 480 },
1425
    { "wxga",     1366, 768 },
1426
    { "wsxga",    1600,1024 },
1427
    { "wuxga",    1920,1200 },
1428
    { "woxga",    2560,1600 },
1429
    { "wqsxga",   3200,2048 },
1430
    { "wquxga",   3840,2400 },
1431
    { "whsxga",   6400,4096 },
1432
    { "whuxga",   7680,4800 },
1433
    { "cga",       320, 200 },
1434
    { "ega",       640, 350 },
1435
    { "hd480",     852, 480 },
1436
    { "hd720",    1280, 720 },
1437
    { "hd1080",   1920,1080 },
1438
};
1439

    
1440
static const VideoFrameRateAbbr video_frame_rate_abbrs[]= {
1441
    { "ntsc",      30000, 1001 },
1442
    { "pal",          25,    1 },
1443
    { "qntsc",     30000, 1001 }, /* VCD compliant NTSC */
1444
    { "qpal",         25,    1 }, /* VCD compliant PAL */
1445
    { "sntsc",     30000, 1001 }, /* square pixel NTSC */
1446
    { "spal",         25,    1 }, /* square pixel PAL */
1447
    { "film",         24,    1 },
1448
    { "ntsc-film", 24000, 1001 },
1449
};
1450

    
1451
int av_parse_video_frame_size(int *width_ptr, int *height_ptr, const char *str)
1452
{
1453
    int i;
1454
    int n = sizeof(video_frame_size_abbrs) / sizeof(VideoFrameSizeAbbr);
1455
    const char *p;
1456
    int frame_width = 0, frame_height = 0;
1457

    
1458
    for(i=0;i<n;i++) {
1459
        if (!strcmp(video_frame_size_abbrs[i].abbr, str)) {
1460
            frame_width = video_frame_size_abbrs[i].width;
1461
            frame_height = video_frame_size_abbrs[i].height;
1462
            break;
1463
        }
1464
    }
1465
    if (i == n) {
1466
        p = str;
1467
        frame_width = strtol(p, (char **)&p, 10);
1468
        if (*p)
1469
            p++;
1470
        frame_height = strtol(p, (char **)&p, 10);
1471
    }
1472
    if (frame_width <= 0 || frame_height <= 0)
1473
        return -1;
1474
    *width_ptr = frame_width;
1475
    *height_ptr = frame_height;
1476
    return 0;
1477
}
1478

    
1479
int av_parse_video_frame_rate(AVRational *frame_rate, const char *arg)
1480
{
1481
    int i;
1482
    int n = sizeof(video_frame_rate_abbrs) / sizeof(VideoFrameRateAbbr);
1483
    char* cp;
1484

    
1485
    /* First, we check our abbreviation table */
1486
    for (i = 0; i < n; ++i)
1487
         if (!strcmp(video_frame_rate_abbrs[i].abbr, arg)) {
1488
             frame_rate->num = video_frame_rate_abbrs[i].rate_num;
1489
             frame_rate->den = video_frame_rate_abbrs[i].rate_den;
1490
             return 0;
1491
         }
1492

    
1493
    /* Then, we try to parse it as fraction */
1494
    cp = strchr(arg, '/');
1495
    if (!cp)
1496
        cp = strchr(arg, ':');
1497
    if (cp) {
1498
        char* cpp;
1499
        frame_rate->num = strtol(arg, &cpp, 10);
1500
        if (cpp != arg || cpp == cp)
1501
            frame_rate->den = strtol(cp+1, &cpp, 10);
1502
        else
1503
           frame_rate->num = 0;
1504
    }
1505
    else {
1506
        /* Finally we give up and parse it as double */
1507
        AVRational time_base = av_d2q(strtod(arg, 0), DEFAULT_FRAME_RATE_BASE);
1508
        frame_rate->den = time_base.den;
1509
        frame_rate->num = time_base.num;
1510
    }
1511
    if (!frame_rate->num || !frame_rate->den)
1512
        return -1;
1513
    else
1514
        return 0;
1515
}