100l: Fix damage from a buggy emacs macro.
[libav.git] / libavcodec / utils.c
CommitLineData
de6d9b64
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1/*
2 * utils for libavcodec
ff4ec49e 3 * Copyright (c) 2001 Fabrice Bellard.
8f2ab833 4 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
de6d9b64 5 *
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6 * This file is part of FFmpeg.
7 *
8 * FFmpeg is free software; you can redistribute it and/or
ff4ec49e
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9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
b78e7197 11 * version 2.1 of the License, or (at your option) any later version.
de6d9b64 12 *
b78e7197 13 * FFmpeg is distributed in the hope that it will be useful,
de6d9b64 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
de6d9b64 17 *
ff4ec49e 18 * You should have received a copy of the GNU Lesser General Public
b78e7197 19 * License along with FFmpeg; if not, write to the Free Software
5509bffa 20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
de6d9b64 21 */
115329f1 22
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23/**
24 * @file utils.c
25 * utils.
26 */
115329f1 27
de6d9b64 28#include "avcodec.h"
3123dd79 29#include "dsputil.h"
1c2a8c7f 30#include "mpegvideo.h"
4c263142 31#include "integer.h"
6fd46414 32#include "opt.h"
43a80cce 33#include "crc.h"
9b879566 34#include <stdarg.h>
4c263142 35#include <limits.h>
860a40c8 36#include <float.h>
2f30a81d 37#ifdef __MINGW32__
1005f542
CH
38#include <fcntl.h>
39#endif
de6d9b64 40
44608ac7
RG
41const uint8_t ff_reverse[256]={
420x00,0x80,0x40,0xC0,0x20,0xA0,0x60,0xE0,0x10,0x90,0x50,0xD0,0x30,0xB0,0x70,0xF0,
430x08,0x88,0x48,0xC8,0x28,0xA8,0x68,0xE8,0x18,0x98,0x58,0xD8,0x38,0xB8,0x78,0xF8,
440x04,0x84,0x44,0xC4,0x24,0xA4,0x64,0xE4,0x14,0x94,0x54,0xD4,0x34,0xB4,0x74,0xF4,
450x0C,0x8C,0x4C,0xCC,0x2C,0xAC,0x6C,0xEC,0x1C,0x9C,0x5C,0xDC,0x3C,0xBC,0x7C,0xFC,
460x02,0x82,0x42,0xC2,0x22,0xA2,0x62,0xE2,0x12,0x92,0x52,0xD2,0x32,0xB2,0x72,0xF2,
470x0A,0x8A,0x4A,0xCA,0x2A,0xAA,0x6A,0xEA,0x1A,0x9A,0x5A,0xDA,0x3A,0xBA,0x7A,0xFA,
480x06,0x86,0x46,0xC6,0x26,0xA6,0x66,0xE6,0x16,0x96,0x56,0xD6,0x36,0xB6,0x76,0xF6,
490x0E,0x8E,0x4E,0xCE,0x2E,0xAE,0x6E,0xEE,0x1E,0x9E,0x5E,0xDE,0x3E,0xBE,0x7E,0xFE,
500x01,0x81,0x41,0xC1,0x21,0xA1,0x61,0xE1,0x11,0x91,0x51,0xD1,0x31,0xB1,0x71,0xF1,
510x09,0x89,0x49,0xC9,0x29,0xA9,0x69,0xE9,0x19,0x99,0x59,0xD9,0x39,0xB9,0x79,0xF9,
520x05,0x85,0x45,0xC5,0x25,0xA5,0x65,0xE5,0x15,0x95,0x55,0xD5,0x35,0xB5,0x75,0xF5,
530x0D,0x8D,0x4D,0xCD,0x2D,0xAD,0x6D,0xED,0x1D,0x9D,0x5D,0xDD,0x3D,0xBD,0x7D,0xFD,
540x03,0x83,0x43,0xC3,0x23,0xA3,0x63,0xE3,0x13,0x93,0x53,0xD3,0x33,0xB3,0x73,0xF3,
550x0B,0x8B,0x4B,0xCB,0x2B,0xAB,0x6B,0xEB,0x1B,0x9B,0x5B,0xDB,0x3B,0xBB,0x7B,0xFB,
560x07,0x87,0x47,0xC7,0x27,0xA7,0x67,0xE7,0x17,0x97,0x57,0xD7,0x37,0xB7,0x77,0xF7,
570x0F,0x8F,0x4F,0xCF,0x2F,0xAF,0x6F,0xEF,0x1F,0x9F,0x5F,0xDF,0x3F,0xBF,0x7F,0xFF,
58};
59
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60static int volatile entangled_thread_counter=0;
61
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62/**
63 * realloc which does nothing if the block is large enough
64 */
5c91a675 65void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size)
8e1e6f31 66{
115329f1 67 if(min_size < *size)
8e1e6f31 68 return ptr;
115329f1 69
0ecca7a4 70 *size= FFMAX(17*min_size/16 + 32, min_size);
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71
72 return av_realloc(ptr, *size);
73}
74
855ea723 75static unsigned int last_static = 0;
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76static unsigned int allocated_static = 0;
77static void** array_static = NULL;
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78
79/**
80 * allocation of static arrays - do not use for normal allocation.
81 */
82void *av_mallocz_static(unsigned int size)
855ea723 83{
855ea723 84 void *ptr = av_mallocz(size);
855ea723 85
115329f1 86 if(ptr){
4e39ab4c 87 array_static =av_fast_realloc(array_static, &allocated_static, sizeof(void*)*(last_static+1));
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88 if(!array_static)
89 return NULL;
8d1f2ba5 90 array_static[last_static++] = ptr;
855ea723 91 }
8d1f2ba5 92
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93 return ptr;
94}
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95
96/**
073c2593
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97 * same as above, but does realloc
98 */
99
100void *av_realloc_static(void *ptr, unsigned int size)
101{
102 int i;
103 if(!ptr)
104 return av_mallocz_static(size);
105 /* Look for the old ptr */
106 for(i = 0; i < last_static; i++) {
107 if(array_static[i] == ptr) {
108 array_static[i] = av_realloc(array_static[i], size);
109 return array_static[i];
110 }
111 }
112 return NULL;
113
114}
115
116/**
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117 * free all static arrays and reset pointers to 0.
118 */
4cfbf61b 119void av_free_static(void)
855ea723 120{
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121 while(last_static){
122 av_freep(&array_static[--last_static]);
855ea723 123 }
8d1f2ba5 124 av_freep(&array_static);
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125}
126
81c5f887 127/**
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128 * Call av_free_static automatically before it's too late
129 */
130
ceaf1909 131static void do_free(void) __attribute__ ((destructor));
32fbf33e 132
ceaf1909 133static void do_free(void)
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134{
135 av_free_static();
136}
137
4d7a0a05 138
de6d9b64 139/* encoder management */
8b69867f 140AVCodec *first_avcodec = NULL;
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141
142void register_avcodec(AVCodec *format)
143{
144 AVCodec **p;
145 p = &first_avcodec;
146 while (*p != NULL) p = &(*p)->next;
147 *p = format;
148 format->next = NULL;
149}
150
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151void avcodec_set_dimensions(AVCodecContext *s, int width, int height){
152 s->coded_width = width;
153 s->coded_height= height;
154 s->width = -((-width )>>s->lowres);
155 s->height= -((-height)>>s->lowres);
156}
157
d90cf87b 158typedef struct InternalBuffer{
1e491e29 159 int last_pic_num;
d90cf87b 160 uint8_t *base[4];
1e491e29 161 uint8_t *data[4];
237e4938 162 int linesize[4];
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163}InternalBuffer;
164
165#define INTERNAL_BUFFER_SIZE 32
1e491e29 166
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167#define ALIGN(x, a) (((x)+(a)-1)&~((a)-1))
168
169void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height){
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170 int w_align= 1;
171 int h_align= 1;
172
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173 switch(s->pix_fmt){
174 case PIX_FMT_YUV420P:
175 case PIX_FMT_YUV422:
ebb177dd 176 case PIX_FMT_UYVY422:
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177 case PIX_FMT_YUV422P:
178 case PIX_FMT_YUV444P:
179 case PIX_FMT_GRAY8:
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180 case PIX_FMT_GRAY16BE:
181 case PIX_FMT_GRAY16LE:
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182 case PIX_FMT_YUVJ420P:
183 case PIX_FMT_YUVJ422P:
184 case PIX_FMT_YUVJ444P:
185 w_align= 16; //FIXME check for non mpeg style codecs and use less alignment
186 h_align= 16;
187 break;
188 case PIX_FMT_YUV411P:
f02be79d 189 case PIX_FMT_UYVY411:
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190 w_align=32;
191 h_align=8;
192 break;
193 case PIX_FMT_YUV410P:
194 if(s->codec_id == CODEC_ID_SVQ1){
195 w_align=64;
196 h_align=64;
197 }
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198 case PIX_FMT_RGB555:
199 if(s->codec_id == CODEC_ID_RPZA){
200 w_align=4;
201 h_align=4;
202 }
203 case PIX_FMT_PAL8:
204 if(s->codec_id == CODEC_ID_SMC){
205 w_align=4;
206 h_align=4;
207 }
f0bbfc4a 208 break;
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209 case PIX_FMT_BGR24:
210 if((s->codec_id == CODEC_ID_MSZH) || (s->codec_id == CODEC_ID_ZLIB)){
211 w_align=4;
212 h_align=4;
213 }
214 break;
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215 default:
216 w_align= 1;
217 h_align= 1;
218 break;
219 }
220
221 *width = ALIGN(*width , w_align);
222 *height= ALIGN(*height, h_align);
223}
224
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225int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h){
226 if((int)w>0 && (int)h>0 && (w+128)*(uint64_t)(h+128) < INT_MAX/4)
227 return 0;
115329f1 228
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229 av_log(av_log_ctx, AV_LOG_ERROR, "picture size invalid (%ux%u)\n", w, h);
230 return -1;
231}
232
492cd3a9 233int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic){
1e491e29 234 int i;
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235 int w= s->width;
236 int h= s->height;
d90cf87b 237 InternalBuffer *buf;
237e4938 238 int *picture_number;
0ecca7a4 239
4e00e76b 240 assert(pic->data[0]==NULL);
d90cf87b 241 assert(INTERNAL_BUFFER_SIZE > s->internal_buffer_count);
1e491e29 242
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243 if(avcodec_check_dimensions(s,w,h))
244 return -1;
245
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246 if(s->internal_buffer==NULL){
247 s->internal_buffer= av_mallocz(INTERNAL_BUFFER_SIZE*sizeof(InternalBuffer));
248 }
249#if 0
250 s->internal_buffer= av_fast_realloc(
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251 s->internal_buffer,
252 &s->internal_buffer_size,
d90cf87b
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253 sizeof(InternalBuffer)*FFMAX(99, s->internal_buffer_count+1)/*FIXME*/
254 );
255#endif
115329f1 256
d90cf87b 257 buf= &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count];
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258 picture_number= &(((InternalBuffer*)s->internal_buffer)[INTERNAL_BUFFER_SIZE-1]).last_pic_num; //FIXME ugly hack
259 (*picture_number)++;
115329f1 260
d90cf87b 261 if(buf->base[0]){
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262 pic->age= *picture_number - buf->last_pic_num;
263 buf->last_pic_num= *picture_number;
1e491e29 264 }else{
f0bbfc4a 265 int h_chroma_shift, v_chroma_shift;
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266 int pixel_size, size[3];
267 AVPicture picture;
268
1e491e29 269 avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
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270
271 avcodec_align_dimensions(s, &w, &h);
115329f1 272
1e491e29
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273 if(!(s->flags&CODEC_FLAG_EMU_EDGE)){
274 w+= EDGE_WIDTH*2;
275 h+= EDGE_WIDTH*2;
276 }
c7622f9a
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277 avpicture_fill(&picture, NULL, s->pix_fmt, w, h);
278 pixel_size= picture.linesize[0]*8 / w;
279//av_log(NULL, AV_LOG_ERROR, "%d %d %d %d\n", (int)picture.data[1], w, h, s->pix_fmt);
280 assert(pixel_size>=1);
281 //FIXME next ensures that linesize= 2^x uvlinesize, thats needed because some MC code assumes it
282 if(pixel_size == 3*8)
283 w= ALIGN(w, STRIDE_ALIGN<<h_chroma_shift);
284 else
285 w= ALIGN(pixel_size*w, STRIDE_ALIGN<<(h_chroma_shift+3)) / pixel_size;
286 size[1] = avpicture_fill(&picture, NULL, s->pix_fmt, w, h);
287 size[0] = picture.linesize[0] * h;
288 size[1] -= size[0];
289 if(picture.data[2])
290 size[1]= size[2]= size[1]/2;
291 else
292 size[2]= 0;
293
d90cf87b 294 buf->last_pic_num= -256*256*256*64;
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295 memset(buf->base, 0, sizeof(buf->base));
296 memset(buf->data, 0, sizeof(buf->data));
1e491e29 297
c7622f9a 298 for(i=0; i<3 && size[i]; i++){
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MN
299 const int h_shift= i==0 ? 0 : h_chroma_shift;
300 const int v_shift= i==0 ? 0 : v_chroma_shift;
1e491e29 301
c7622f9a 302 buf->linesize[i]= picture.linesize[i];
1e491e29 303
c7622f9a 304 buf->base[i]= av_malloc(size[i]+16); //FIXME 16
d90cf87b 305 if(buf->base[i]==NULL) return -1;
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MN
306 memset(buf->base[i], 128, size[i]);
307
308 // no edge if EDEG EMU or not planar YUV, we check for PAL8 redundantly to protect against a exploitable bug regression ...
115329f1 309 if((s->flags&CODEC_FLAG_EMU_EDGE) || (s->pix_fmt == PIX_FMT_PAL8) || !size[2])
d90cf87b 310 buf->data[i] = buf->base[i];
1e491e29 311 else
3237f731 312 buf->data[i] = buf->base[i] + ALIGN((buf->linesize[i]*EDGE_WIDTH>>v_shift) + (EDGE_WIDTH>>h_shift), STRIDE_ALIGN);
1e491e29
MN
313 }
314 pic->age= 256*256*256*64;
315 }
237e4938 316 pic->type= FF_BUFFER_TYPE_INTERNAL;
1e491e29 317
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318 for(i=0; i<4; i++){
319 pic->base[i]= buf->base[i];
320 pic->data[i]= buf->data[i];
237e4938 321 pic->linesize[i]= buf->linesize[i];
d90cf87b
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322 }
323 s->internal_buffer_count++;
324
1e491e29
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325 return 0;
326}
327
492cd3a9 328void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic){
1e491e29 329 int i;
d90cf87b
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330 InternalBuffer *buf, *last, temp;
331
4e00e76b 332 assert(pic->type==FF_BUFFER_TYPE_INTERNAL);
59c673d5 333 assert(s->internal_buffer_count);
d90cf87b 334
b1609412 335 buf = NULL; /* avoids warning */
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MN
336 for(i=0; i<s->internal_buffer_count; i++){ //just 3-5 checks so is not worth to optimize
337 buf= &((InternalBuffer*)s->internal_buffer)[i];
338 if(buf->data[0] == pic->data[0])
339 break;
340 }
341 assert(i < s->internal_buffer_count);
342 s->internal_buffer_count--;
343 last = &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count];
344
345 temp= *buf;
346 *buf= *last;
347 *last= temp;
348
349 for(i=0; i<3; i++){
1e491e29 350 pic->data[i]=NULL;
d90cf87b
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351// pic->base[i]=NULL;
352 }
1e491e29
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353//printf("R%X\n", pic->opaque);
354}
355
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RT
356int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic){
357 AVFrame temp_pic;
358 int i;
359
360 /* If no picture return a new buffer */
361 if(pic->data[0] == NULL) {
362 /* We will copy from buffer, so must be readable */
363 pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
364 return s->get_buffer(s, pic);
365 }
366
367 /* If internal buffer type return the same buffer */
368 if(pic->type == FF_BUFFER_TYPE_INTERNAL)
369 return 0;
370
371 /*
372 * Not internal type and reget_buffer not overridden, emulate cr buffer
373 */
374 temp_pic = *pic;
375 for(i = 0; i < 4; i++)
376 pic->data[i] = pic->base[i] = NULL;
377 pic->opaque = NULL;
378 /* Allocate new frame */
379 if (s->get_buffer(s, pic))
380 return -1;
381 /* Copy image data from old buffer to new buffer */
382 img_copy((AVPicture*)pic, (AVPicture*)&temp_pic, s->pix_fmt, s->width,
383 s->height);
384 s->release_buffer(s, &temp_pic); // Release old frame
385 return 0;
386}
387
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388int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count){
389 int i;
390
391 for(i=0; i<count; i++){
392 int r= func(c, arg[i]);
393 if(ret) ret[i]= r;
394 }
395 return 0;
396}
397
494c56d3 398enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt){
a33c7159
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399 return fmt[0];
400}
401
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402static const char* context_to_name(void* ptr) {
403 AVCodecContext *avc= ptr;
404
405 if(avc && avc->codec && avc->codec->name)
115329f1 406 return avc->codec->name;
43465395
MN
407 else
408 return "NULL";
409}
410
66acccf0 411#define OFFSET(x) offsetof(AVCodecContext,x)
860a40c8 412#define DEFAULT 0 //should be NAN but it doesnt work as its not a constant in glibc as required by ANSI/ISO C
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413//these names are too long to be readable
414#define V AV_OPT_FLAG_VIDEO_PARAM
415#define A AV_OPT_FLAG_AUDIO_PARAM
416#define S AV_OPT_FLAG_SUBTITLE_PARAM
115329f1 417#define E AV_OPT_FLAG_ENCODING_PARAM
8bbf6db9 418#define D AV_OPT_FLAG_DECODING_PARAM
860a40c8 419
0b97eea3 420#define AV_CODEC_DEFAULT_BITRATE 200*1000
8c3dd5dc 421
62a05b5b 422static const AVOption options[]={
7df00a4e 423{"b", "set video bitrate (in bits/s)", OFFSET(bit_rate), FF_OPT_TYPE_INT, AV_CODEC_DEFAULT_BITRATE, INT_MIN, INT_MAX, V|A|E},
a45bc592 424{"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},
637b5326 425{"flags", NULL, OFFSET(flags), FF_OPT_TYPE_FLAGS, DEFAULT, INT_MIN, INT_MAX, V|A|E|D, "flags"},
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426{"mv4", "use four motion vector by macroblock (mpeg4)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_4MV, INT_MIN, INT_MAX, V|E, "flags"},
427{"obmc", "use overlapped block motion compensation (h263+)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_OBMC, INT_MIN, INT_MAX, V|E, "flags"},
428{"qpel", "use 1/4 pel motion compensation", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_QPEL, INT_MIN, INT_MAX, V|E, "flags"},
429{"loop", "use loop filter", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_LOOP_FILTER, INT_MIN, INT_MAX, V|E, "flags"},
430{"qscale", "use fixed qscale", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_QSCALE, INT_MIN, INT_MAX, 0, "flags"},
431{"gmc", "use gmc", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_GMC, INT_MIN, INT_MAX, V|E, "flags"},
432{"mv0", "always try a mb with mv=<0,0>", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_MV0, INT_MIN, INT_MAX, V|E, "flags"},
433{"part", "use data partitioning", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PART, INT_MIN, INT_MAX, V|E, "flags"},
434{"input_preserved", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG_INPUT_PRESERVED, INT_MIN, INT_MAX, 0, "flags"},
435{"pass1", "use internal 2pass ratecontrol in first pass mode", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PASS1, INT_MIN, INT_MAX, 0, "flags"},
436{"pass2", "use internal 2pass ratecontrol in second pass mode", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PASS2, INT_MIN, INT_MAX, 0, "flags"},
437{"extern_huff", "use external huffman table (for mjpeg)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_EXTERN_HUFF, INT_MIN, INT_MAX, 0, "flags"},
438{"gray", "only decode/encode grayscale", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_GRAY, INT_MIN, INT_MAX, V|E|D, "flags"},
439{"emu_edge", "don't draw edges", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_EMU_EDGE, INT_MIN, INT_MAX, 0, "flags"},
440{"psnr", "error[?] variables will be set during encoding", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PSNR, INT_MIN, INT_MAX, V|E, "flags"},
441{"truncated", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG_TRUNCATED, INT_MIN, INT_MAX, 0, "flags"},
442{"naq", "normalize adaptive quantization", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_NORMALIZE_AQP, INT_MIN, INT_MAX, V|E, "flags"},
443{"ildct", "use interlaced dct", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_INTERLACED_DCT, INT_MIN, INT_MAX, V|E, "flags"},
9cc6be9d 444{"low_delay", "force low delay", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_LOW_DELAY, INT_MIN, INT_MAX, V|D|E, "flags"},
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MN
445{"alt", "enable alternate scantable (mpeg2/mpeg4)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_ALT_SCAN, INT_MIN, INT_MAX, V|E, "flags"},
446{"trell", "use trellis quantization", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_TRELLIS_QUANT, INT_MIN, INT_MAX, V|E, "flags"},
447{"global_header", "place global headers in extradata instead of every keyframe", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_GLOBAL_HEADER, INT_MIN, INT_MAX, 0, "flags"},
448{"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"},
449{"aic", "h263 advanced intra coding / mpeg4 ac prediction", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_AC_PRED, INT_MIN, INT_MAX, V|E, "flags"},
450{"umv", "use unlimited motion vectors", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_H263P_UMV, INT_MIN, INT_MAX, V|E, "flags"},
451{"cbp", "use rate distortion optimization for cbp", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_CBP_RD, INT_MIN, INT_MAX, V|E, "flags"},
8f196b14 452{"qprd", "use rate distortion optimization for qp selection", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_QP_RD, INT_MIN, INT_MAX, V|E, "flags"},
fac862c6
MN
453{"aiv", "h263 alternative inter vlc", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_H263P_AIV, INT_MIN, INT_MAX, V|E, "flags"},
454{"slice", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG_H263P_SLICE_STRUCT, INT_MIN, INT_MAX, V|E, "flags"},
455{"ilme", "interlaced motion estimation", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_INTERLACED_ME, INT_MIN, INT_MAX, V|E, "flags"},
456{"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"},
8f196b14 457{"cgop", "closed gop", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_CLOSED_GOP, INT_MIN, INT_MAX, V|E, "flags"},
fac862c6
MN
458{"fast", "allow non spec compliant speedup tricks", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_FAST, INT_MIN, INT_MAX, V|E, "flags2"},
459{"sgop", "strictly enforce gop size", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_STRICT_GOP, INT_MIN, INT_MAX, V|E, "flags2"},
460{"noout", "skip bitstream encoding", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_NO_OUTPUT, INT_MIN, INT_MAX, V|E, "flags2"},
461{"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"},
860a40c8 462{"sub_id", NULL, OFFSET(sub_id), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
5cc9b87f 463{"me_method", "set motion estimation method", OFFSET(me_method), FF_OPT_TYPE_INT, ME_EPZS, INT_MIN, INT_MAX, V|E, "me_method"},
860a40c8
MN
464{"extradata_size", NULL, OFFSET(extradata_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
465{"time_base", NULL, OFFSET(time_base), FF_OPT_TYPE_RATIONAL, DEFAULT, INT_MIN, INT_MAX},
7df00a4e 466{"g", "set the group of picture size", OFFSET(gop_size), FF_OPT_TYPE_INT, 12, INT_MIN, INT_MAX, V|E},
119aae1d 467{"rate_emu", "frame rate emulation", OFFSET(rate_emu), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
7df00a4e 468{"ar", "set audio sampling rate (in Hz)", OFFSET(sample_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
462209fe 469{"ac", "set number of audio channels", OFFSET(channels), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
14f0c8e2 470{"cutoff", "set cutoff bandwidth", OFFSET(cutoff), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, A|E},
c6375bf2 471{"frame_size", NULL, OFFSET(frame_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, A|E},
860a40c8
MN
472{"frame_number", NULL, OFFSET(frame_number), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
473{"real_pict_num", NULL, OFFSET(real_pict_num), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
474{"delay", NULL, OFFSET(delay), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
4bef236b
DB
475{"qcomp", "video quantizer scale compression (VBR)", OFFSET(qcompress), FF_OPT_TYPE_FLOAT, 0.5, FLT_MIN, FLT_MAX, V|E},
476{"qblur", "video quantizer scale blur (VBR)", OFFSET(qblur), FF_OPT_TYPE_FLOAT, 0.5, FLT_MIN, FLT_MAX, V|E},
477{"qmin", "min video quantizer scale (VBR)", OFFSET(qmin), FF_OPT_TYPE_INT, 2, 1, 51, V|E},
478{"qmax", "max video quantizer scale (VBR)", OFFSET(qmax), FF_OPT_TYPE_INT, 31, 1, 51, V|E},
479{"qdiff", "max difference between the quantizer scale (VBR)", OFFSET(max_qdiff), FF_OPT_TYPE_INT, 3, INT_MIN, INT_MAX, V|E},
315b0f97 480{"bf", "use 'frames' B frames", OFFSET(max_b_frames), FF_OPT_TYPE_INT, DEFAULT, 0, FF_MAX_B_FRAMES, V|E},
7df00a4e 481{"b_qfactor", "qp factor between p and b frames", OFFSET(b_quant_factor), FF_OPT_TYPE_FLOAT, 1.25, FLT_MIN, FLT_MAX, V|E},
97041923
VP
482{"rc_strategy", "ratecontrol method", OFFSET(rc_strategy), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
483{"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},
8bbf6db9 484{"hurry_up", NULL, OFFSET(hurry_up), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D},
860a40c8
MN
485{"rtp_mode", NULL, OFFSET(rtp_mode), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
486{"rtp_payload_size", NULL, OFFSET(rtp_payload_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
487{"mv_bits", NULL, OFFSET(mv_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
488{"header_bits", NULL, OFFSET(header_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
489{"i_tex_bits", NULL, OFFSET(i_tex_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
490{"p_tex_bits", NULL, OFFSET(p_tex_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
491{"i_count", NULL, OFFSET(i_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
492{"p_count", NULL, OFFSET(p_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
493{"skip_count", NULL, OFFSET(skip_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
494{"misc_bits", NULL, OFFSET(misc_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
495{"frame_bits", NULL, OFFSET(frame_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
496{"codec_tag", NULL, OFFSET(codec_tag), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
7df00a4e 497{"bug", "workaround not auto detected encoder bugs", OFFSET(workaround_bugs), FF_OPT_TYPE_FLAGS, FF_BUG_AUTODETECT, INT_MIN, INT_MAX, V|D, "bug"},
fac862c6 498{"autodetect", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_AUTODETECT, INT_MIN, INT_MAX, V|D, "bug"},
97041923
VP
499{"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"},
500{"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"},
501{"ump4", "(autodetected if fourcc==UMP4)", 0, FF_OPT_TYPE_CONST, FF_BUG_UMP4, INT_MIN, INT_MAX, V|D, "bug"},
502{"no_padding", "padding bug (autodetected)", 0, FF_OPT_TYPE_CONST, FF_BUG_NO_PADDING, INT_MIN, INT_MAX, V|D, "bug"},
fac862c6 503{"amv", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_AMV, INT_MIN, INT_MAX, V|D, "bug"},
97041923 504{"ac_vlc", "illegal vlc bug (autodetected per fourcc)", 0, FF_OPT_TYPE_CONST, FF_BUG_AC_VLC, INT_MIN, INT_MAX, V|D, "bug"},
fac862c6 505{"qpel_chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_QPEL_CHROMA, INT_MIN, INT_MAX, V|D, "bug"},
97041923 506{"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"},
fac862c6 507{"qpel_chroma2", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_QPEL_CHROMA2, INT_MIN, INT_MAX, V|D, "bug"},
97041923
VP
508{"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"},
509{"edge", "edge padding bug (autodetected per fourcc/version)", 0, FF_OPT_TYPE_CONST, FF_BUG_EDGE, INT_MIN, INT_MAX, V|D, "bug"},
fac862c6
MN
510{"hpel_chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_HPEL_CHROMA, INT_MIN, INT_MAX, V|D, "bug"},
511{"dc_clip", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_DC_CLIP, INT_MIN, INT_MAX, V|D, "bug"},
119aae1d 512{"ms", "workaround various bugs in microsofts broken decoders", 0, FF_OPT_TYPE_CONST, FF_BUG_MS, INT_MIN, INT_MAX, V|D, "bug"},
fac862c6
MN
513{"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},
514{"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},
4785c016 515{"strict", "how strictly to follow the standards", OFFSET(strict_std_compliance), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, A|V|D, "strict"},
119aae1d
PI
516{"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|E, "strict"},
517{"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|E, "strict"},
fac862c6 518{"normal", NULL, 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_NORMAL, INT_MIN, INT_MAX, V|E, "strict"},
119aae1d
PI
519{"inofficial", "allow inofficial extensions", 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_INOFFICIAL, INT_MIN, INT_MAX, V|E, "strict"},
520{"experimental", "allow non standarized experimental things", 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_EXPERIMENTAL, INT_MIN, INT_MAX, V|E, "strict"},
7df00a4e 521{"b_qoffset", "qp offset between p and b frames", OFFSET(b_quant_offset), FF_OPT_TYPE_FLOAT, 1.25, FLT_MIN, FLT_MAX, V|E},
4785c016 522{"er", "set error resilience strategy", OFFSET(error_resilience), FF_OPT_TYPE_INT, FF_ER_CAREFUL, INT_MIN, INT_MAX, A|V|D, "er"},
fac862c6
MN
523{"careful", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_CAREFUL, INT_MIN, INT_MAX, V|D, "er"},
524{"compliant", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_COMPLIANT, INT_MIN, INT_MAX, V|D, "er"},
525{"aggressive", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_AGGRESSIVE, INT_MIN, INT_MAX, V|D, "er"},
526{"very_aggressive", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_VERY_AGGRESSIVE, INT_MIN, INT_MAX, V|D, "er"},
860a40c8
MN
527{"has_b_frames", NULL, OFFSET(has_b_frames), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
528{"block_align", NULL, OFFSET(block_align), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
529{"parse_only", NULL, OFFSET(parse_only), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
97041923 530{"mpeg_quant", "use MPEG quantizers instead of H.263", OFFSET(mpeg_quant), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
860a40c8
MN
531{"stats_out", NULL, OFFSET(stats_out), FF_OPT_TYPE_STRING, DEFAULT, CHAR_MIN, CHAR_MAX},
532{"stats_in", NULL, OFFSET(stats_in), FF_OPT_TYPE_STRING, DEFAULT, CHAR_MIN, CHAR_MAX},
4bef236b 533{"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},
97041923
VP
534{"rc_qmod_amp", "experimental quantizer modulation", OFFSET(rc_qmod_amp), FF_OPT_TYPE_FLOAT, DEFAULT, -FLT_MAX, FLT_MAX, V|E},
535{"rc_qmod_freq", "experimental quantizer modulation", OFFSET(rc_qmod_freq), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
860a40c8 536{"rc_override_count", NULL, OFFSET(rc_override_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
5cc9b87f 537{"rc_eq", "set rate control equation", OFFSET(rc_eq), FF_OPT_TYPE_STRING, DEFAULT, CHAR_MIN, CHAR_MAX, V|E},
7df00a4e
PI
538{"maxrate", "set max video bitrate tolerance (in bits/s)", OFFSET(rc_max_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
539{"minrate", "set min video bitrate tolerance (in bits/s)", OFFSET(rc_min_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
540{"bufsize", "set ratecontrol buffer size (in bits)", OFFSET(rc_buffer_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
97041923 541{"rc_buf_aggressivity", "currently useless", OFFSET(rc_buffer_aggressivity), FF_OPT_TYPE_FLOAT, 1.0, FLT_MIN, FLT_MAX, V|E},
fda7eb90 542{"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},
076ce017
PI
543{"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},
544{"rc_init_cplx", "initial complexity for 1-pass encoding", OFFSET(rc_initial_cplx), FF_OPT_TYPE_FLOAT, DEFAULT, -FLT_MAX, FLT_MAX, V|E},
97041923
VP
545{"dct", "DCT algorithm", OFFSET(dct_algo), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, V|E, "dct"},
546{"auto", "autoselect a good one (default)", 0, FF_OPT_TYPE_CONST, FF_DCT_AUTO, INT_MIN, INT_MAX, V|E, "dct"},
547{"fastint", "fast integer", 0, FF_OPT_TYPE_CONST, FF_DCT_FASTINT, INT_MIN, INT_MAX, V|E, "dct"},
548{"int", "accurate integer", 0, FF_OPT_TYPE_CONST, FF_DCT_INT, INT_MIN, INT_MAX, V|E, "dct"},
fac862c6
MN
549{"mmx", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_MMX, INT_MIN, INT_MAX, V|E, "dct"},
550{"mlib", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_MLIB, INT_MIN, INT_MAX, V|E, "dct"},
551{"altivec", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_ALTIVEC, INT_MIN, INT_MAX, V|E, "dct"},
4a1bb619 552{"faan", "floating point AAN DCT", 0, FF_OPT_TYPE_CONST, FF_DCT_FAAN, INT_MIN, INT_MAX, V|E, "dct"},
97041923 553{"lumi_mask", "compresses bright areas stronger than medium ones", OFFSET(lumi_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
076ce017
PI
554{"tcplx_mask", "temporal complexity masking", OFFSET(temporal_cplx_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
555{"scplx_mask", "spatial complexity masking", OFFSET(spatial_cplx_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
556{"p_mask", "inter masking", OFFSET(p_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
97041923 557{"dark_mask", "compresses dark areas stronger than medium ones", OFFSET(dark_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
860a40c8 558{"unused", NULL, OFFSET(unused), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
895bf499 559{"idct", "select IDCT implementation", OFFSET(idct_algo), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, V|E|D, "idct"},
fac862c6
MN
560{"auto", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_AUTO, INT_MIN, INT_MAX, V|E|D, "idct"},
561{"int", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_INT, INT_MIN, INT_MAX, V|E|D, "idct"},
562{"simple", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLE, INT_MIN, INT_MAX, V|E|D, "idct"},
563{"simplemmx", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEMMX, INT_MIN, INT_MAX, V|E|D, "idct"},
564{"libmpeg2mmx", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_LIBMPEG2MMX, INT_MIN, INT_MAX, V|E|D, "idct"},
565{"ps2", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_PS2, INT_MIN, INT_MAX, V|E|D, "idct"},
566{"mlib", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_MLIB, INT_MIN, INT_MAX, V|E|D, "idct"},
567{"arm", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_ARM, INT_MIN, INT_MAX, V|E|D, "idct"},
568{"altivec", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_ALTIVEC, INT_MIN, INT_MAX, V|E|D, "idct"},
569{"sh4", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SH4, INT_MIN, INT_MAX, V|E|D, "idct"},
570{"simplearm", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEARM, INT_MIN, INT_MAX, V|E|D, "idct"},
a0403006 571{"simplearmv5te", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEARMV5TE, INT_MIN, INT_MAX, V|E|D, "idct"},
fac862c6
MN
572{"h264", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_H264, INT_MIN, INT_MAX, V|E|D, "idct"},
573{"vp3", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_VP3, INT_MIN, INT_MAX, V|E|D, "idct"},
574{"ipp", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_IPP, INT_MIN, INT_MAX, V|E|D, "idct"},
575{"xvidmmx", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_XVIDMMX, INT_MIN, INT_MAX, V|E|D, "idct"},
860a40c8 576{"slice_count", NULL, OFFSET(slice_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
97041923
VP
577{"ec", "set error concealment strategy", OFFSET(error_concealment), FF_OPT_TYPE_FLAGS, 3, INT_MIN, INT_MAX, V|D, "ec"},
578{"guess_mvs", "iterative motion vector (MV) search (slow)", 0, FF_OPT_TYPE_CONST, FF_EC_GUESS_MVS, INT_MIN, INT_MAX, V|D, "ec"},
579{"deblock", "use strong deblock filter for damaged MBs", 0, FF_OPT_TYPE_CONST, FF_EC_DEBLOCK, INT_MIN, INT_MAX, V|D, "ec"},
860a40c8 580{"bits_per_sample", NULL, OFFSET(bits_per_sample), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
8f196b14 581{"pred", "prediction method", OFFSET(prediction_method), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "pred"},
fac862c6
MN
582{"left", NULL, 0, FF_OPT_TYPE_CONST, FF_PRED_LEFT, INT_MIN, INT_MAX, V|E, "pred"},
583{"plane", NULL, 0, FF_OPT_TYPE_CONST, FF_PRED_PLANE, INT_MIN, INT_MAX, V|E, "pred"},
584{"median", NULL, 0, FF_OPT_TYPE_CONST, FF_PRED_MEDIAN, INT_MIN, INT_MAX, V|E, "pred"},
119aae1d 585{"aspect", "sample aspect ratio", OFFSET(sample_aspect_ratio), FF_OPT_TYPE_RATIONAL, DEFAULT, 0, 10, V|E},
637b5326 586{"debug", "print specific debug info", OFFSET(debug), FF_OPT_TYPE_FLAGS, DEFAULT, 0, INT_MAX, V|A|S|E|D, "debug"},
97041923
VP
587{"pict", "picture info", 0, FF_OPT_TYPE_CONST, FF_DEBUG_PICT_INFO, INT_MIN, INT_MAX, V|D, "debug"},
588{"rc", "rate control", 0, FF_OPT_TYPE_CONST, FF_DEBUG_RC, INT_MIN, INT_MAX, V|E, "debug"},
fac862c6 589{"bitstream", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_BITSTREAM, INT_MIN, INT_MAX, V|D, "debug"},
97041923
VP
590{"mb_type", "macroblock (MB) type", 0, FF_OPT_TYPE_CONST, FF_DEBUG_MB_TYPE, INT_MIN, INT_MAX, V|D, "debug"},
591{"qp", "per-block quantization parameter (QP)", 0, FF_OPT_TYPE_CONST, FF_DEBUG_QP, INT_MIN, INT_MAX, V|D, "debug"},
592{"mv", "motion vector", 0, FF_OPT_TYPE_CONST, FF_DEBUG_MV, INT_MIN, INT_MAX, V|D, "debug"},
fac862c6
MN
593{"dct_coeff", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_DCT_COEFF, INT_MIN, INT_MAX, V|D, "debug"},
594{"skip", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_SKIP, INT_MIN, INT_MAX, V|D, "debug"},
595{"startcode", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_STARTCODE, INT_MIN, INT_MAX, V|D, "debug"},
596{"pts", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_PTS, INT_MIN, INT_MAX, V|D, "debug"},
97041923
VP
597{"er", "error resilience", 0, FF_OPT_TYPE_CONST, FF_DEBUG_ER, INT_MIN, INT_MAX, V|D, "debug"},
598{"mmco", "memory management control operations (H.264)", 0, FF_OPT_TYPE_CONST, FF_DEBUG_MMCO, INT_MIN, INT_MAX, V|D, "debug"},
fac862c6 599{"bugs", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_BUGS, INT_MIN, INT_MAX, V|D, "debug"},
97041923
VP
600{"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"},
601{"vis_mb_type", "visualize block types", 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_MB_TYPE, INT_MIN, INT_MAX, V|D, "debug"},
602{"vismv", "visualize motion vectors (MVs)", OFFSET(debug_mv), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, V|D, "debug_mv"},
603{"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"},
604{"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"},
605{"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"},
f70d367b
DB
606{"mb_qmin", "obsolete, use qmin", OFFSET(mb_qmin), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
607{"mb_qmax", "obsolete, use qmax", OFFSET(mb_qmax), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
fac862c6
MN
608{"cmp", "full pel me compare function", OFFSET(me_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
609{"subcmp", "sub pel me compare function", OFFSET(me_sub_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
ec9127c4 610{"mbcmp", "macroblock compare function", OFFSET(mb_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
8c3dd5dc 611{"ildctcmp", "interlaced dct compare function", OFFSET(ildct_cmp), FF_OPT_TYPE_INT, FF_CMP_VSAD, INT_MIN, INT_MAX, V|E, "cmp_func"},
97041923
VP
612{"dia_size", "diamond type & size for motion estimation", OFFSET(dia_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
613{"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},
5cc9b87f 614{"preme", "pre motion estimation", OFFSET(pre_me), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
ec9127c4 615{"precmp", "pre motion estimation compare function", OFFSET(me_pre_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
97041923
VP
616{"sad", "sum of absolute differences, fast (default)", 0, FF_OPT_TYPE_CONST, FF_CMP_SAD, INT_MIN, INT_MAX, V|E, "cmp_func"},
617{"sse", "sum of squared errors", 0, FF_OPT_TYPE_CONST, FF_CMP_SSE, INT_MIN, INT_MAX, V|E, "cmp_func"},
618{"satd", "sum of absolute Hadamard transformed differences", 0, FF_OPT_TYPE_CONST, FF_CMP_SATD, INT_MIN, INT_MAX, V|E, "cmp_func"},
619{"dct", "sum of absolute DCT transformed differences", 0, FF_OPT_TYPE_CONST, FF_CMP_DCT, INT_MIN, INT_MAX, V|E, "cmp_func"},
620{"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"},
621{"bit", "number of bits needed for the block", 0, FF_OPT_TYPE_CONST, FF_CMP_BIT, INT_MIN, INT_MAX, V|E, "cmp_func"},
622{"rd", "rate distortion optimal, slow", 0, FF_OPT_TYPE_CONST, FF_CMP_RD, INT_MIN, INT_MAX, V|E, "cmp_func"},
623{"zero", "0", 0, FF_OPT_TYPE_CONST, FF_CMP_ZERO, INT_MIN, INT_MAX, V|E, "cmp_func"},
624{"vsad", "sum of absolute vertical differences", 0, FF_OPT_TYPE_CONST, FF_CMP_VSAD, INT_MIN, INT_MAX, V|E, "cmp_func"},
625{"vsse","sum of squared vertical differences", 0, FF_OPT_TYPE_CONST, FF_CMP_VSSE, INT_MIN, INT_MAX, V|E, "cmp_func"},
626{"nsse", "noise preserving sum of squared differences", 0, FF_OPT_TYPE_CONST, FF_CMP_NSSE, INT_MIN, INT_MAX, V|E, "cmp_func"},
3a6fc8fa 627#ifdef CONFIG_SNOW_ENCODER
97041923
VP
628{"w53", "5/3 wavelet, only used in snow", 0, FF_OPT_TYPE_CONST, FF_CMP_W53, INT_MIN, INT_MAX, V|E, "cmp_func"},
629{"w97", "9/7 wavelet, only used in snow", 0, FF_OPT_TYPE_CONST, FF_CMP_W97, INT_MIN, INT_MAX, V|E, "cmp_func"},
3a6fc8fa 630#endif
fac862c6
MN
631{"dctmax", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_DCTMAX, INT_MIN, INT_MAX, V|E, "cmp_func"},
632{"chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_CHROMA, INT_MIN, INT_MAX, V|E, "cmp_func"},
97041923 633{"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},
8c3dd5dc 634{"subq", "sub pel motion estimation quality", OFFSET(me_subpel_quality), FF_OPT_TYPE_INT, 8, INT_MIN, INT_MAX, V|E},
860a40c8 635{"dtg_active_format", NULL, OFFSET(dtg_active_format), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
5cc9b87f
PI
636{"me_range", "limit motion vectors range (1023 for DivX player)", OFFSET(me_range), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
637{"ibias", "intra quant bias", OFFSET(intra_quant_bias), FF_OPT_TYPE_INT, FF_DEFAULT_QUANT_BIAS, INT_MIN, INT_MAX, V|E},
638{"pbias", "inter quant bias", OFFSET(inter_quant_bias), FF_OPT_TYPE_INT, FF_DEFAULT_QUANT_BIAS, INT_MIN, INT_MAX, V|E},
860a40c8
MN
639{"color_table_id", NULL, OFFSET(color_table_id), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
640{"internal_buffer_count", NULL, OFFSET(internal_buffer_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
641{"global_quality", NULL, OFFSET(global_quality), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
ec9127c4 642{"coder", NULL, OFFSET(coder_type), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "coder"},
8f196b14
MN
643{"vlc", "variable length coder / huffman coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_VLC, INT_MIN, INT_MAX, V|E, "coder"},
644{"ac", "arithmetic coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_AC, INT_MIN, INT_MAX, V|E, "coder"},
645{"context", "context model", OFFSET(context_model), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
860a40c8
MN
646{"slice_flags", NULL, OFFSET(slice_flags), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
647{"xvmc_acceleration", NULL, OFFSET(xvmc_acceleration), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
97041923
VP
648{"mbd", "macroblock decision algorithm (high quality mode)", OFFSET(mb_decision), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "mbd"},
649{"simple", "use mbcmp (default)", 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_SIMPLE, INT_MIN, INT_MAX, V|E, "mbd"},
650{"bits", "use fewest bits", 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_BITS, INT_MIN, INT_MAX, V|E, "mbd"},
651{"rd", "use best rate distortion", 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_RD, INT_MIN, INT_MAX, V|E, "mbd"},
860a40c8 652{"stream_codec_tag", NULL, OFFSET(stream_codec_tag), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
5cc9b87f
PI
653{"sc_threshold", "scene change threshold", OFFSET(scenechange_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
654{"lmin", "min lagrange factor (VBR)", OFFSET(lmin), FF_OPT_TYPE_INT, 2*FF_QP2LAMBDA, 0, INT_MAX, V|E},
655{"lmax", "max lagrange factor (VBR)", OFFSET(lmax), FF_OPT_TYPE_INT, 31*FF_QP2LAMBDA, 0, INT_MAX, V|E},
8f196b14 656{"nr", "noise reduction", OFFSET(noise_reduction), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
119aae1d 657{"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},
8bbf6db9 658{"inter_threshold", NULL, OFFSET(inter_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
8c3dd5dc 659{"flags2", NULL, OFFSET(flags2), FF_OPT_TYPE_FLAGS, CODEC_FLAG2_FASTPSKIP, INT_MIN, INT_MAX, V|A|E|D, "flags2"},
22565f5d 660{"error", NULL, OFFSET(error_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
119aae1d 661{"antialias", "MP3 antialias algorithm", OFFSET(antialias_algo), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D, "aa"},
fac862c6
MN
662{"auto", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_AUTO, INT_MIN, INT_MAX, V|D, "aa"},
663{"fastint", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_FASTINT, INT_MIN, INT_MAX, V|D, "aa"},
664{"int", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_INT, INT_MIN, INT_MAX, V|D, "aa"},
665{"float", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_FLOAT, INT_MIN, INT_MAX, V|D, "aa"},
8f196b14 666{"qns", "quantizer noise shaping", OFFSET(quantizer_noise_shaping), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
7df00a4e 667{"threads", NULL, OFFSET(thread_count), FF_OPT_TYPE_INT, 1, INT_MIN, INT_MAX, V|E|D},
637b5326 668{"me_threshold", "motion estimaton threshold", OFFSET(me_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
bf080813 669{"mb_threshold", "macroblock threshold", OFFSET(mb_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
327409d7 670{"dc", "intra_dc_precision", OFFSET(intra_dc_precision), FF_OPT_TYPE_INT, 0, INT_MIN, INT_MAX, V|E},
8f196b14 671{"nssew", "nsse weight", OFFSET(nsse_weight), FF_OPT_TYPE_INT, 8, INT_MIN, INT_MAX, V|E},
119aae1d
PI
672{"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},
673{"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},
ec9127c4 674{"profile", NULL, OFFSET(profile), FF_OPT_TYPE_INT, FF_PROFILE_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "profile"},
fac862c6 675{"unknown", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "profile"},
ec9127c4 676{"level", NULL, OFFSET(level), FF_OPT_TYPE_INT, FF_LEVEL_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "level"},
fac862c6 677{"unknown", NULL, 0, FF_OPT_TYPE_CONST, FF_LEVEL_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "level"},
97041923 678{"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},
7df00a4e
PI
679{"skip_threshold", "frame skip threshold", OFFSET(frame_skip_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
680{"skip_factor", "frame skip factor", OFFSET(frame_skip_factor), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
681{"skip_exp", "frame skip exponent", OFFSET(frame_skip_exp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
d4de20d1 682{"skipcmp", "frame skip compare function", OFFSET(frame_skip_cmp), FF_OPT_TYPE_INT, FF_CMP_DCTMAX, INT_MIN, INT_MAX, V|E, "cmp_func"},
97041923 683{"border_mask", "increases the quantizer for macroblocks close to borders", OFFSET(border_masking), FF_OPT_TYPE_FLOAT, DEFAULT, -FLT_MAX, FLT_MAX, V|E},
1984f5cd
CH
684{"mblmin", "min macroblock lagrange factor (VBR)", OFFSET(mb_lmin), FF_OPT_TYPE_INT, FF_QP2LAMBDA * 2, 1, FF_LAMBDA_MAX, V|E},
685{"mblmax", "max macroblock lagrange factor (VBR)", OFFSET(mb_lmax), FF_OPT_TYPE_INT, FF_QP2LAMBDA * 31, 1, FF_LAMBDA_MAX, V|E},
cccb4c96 686{"mepc", "motion estimation bitrate penalty compensation (1.0 = 256)", OFFSET(me_penalty_compensation), FF_OPT_TYPE_INT, 256, INT_MIN, INT_MAX, V|E},
97041923
VP
687{"bidir_refine", "refine the two motion vectors used in bidirectional macroblocks", OFFSET(bidir_refine), FF_OPT_TYPE_INT, DEFAULT, 0, 4, V|E},
688{"brd_scale", "downscales frames for dynamic B-frame decision", OFFSET(brd_scale), FF_OPT_TYPE_INT, DEFAULT, 0, 10, V|E},
689{"crf", "enables constant quality mode, and selects the quality (x264)", OFFSET(crf), FF_OPT_TYPE_FLOAT, DEFAULT, 0, 51, V|E},
119aae1d 690{"cqp", "constant quantization parameter rate control method", OFFSET(cqp), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, V|E},
97041923
VP
691{"keyint_min", "minimum interval between IDR-frames (x264)", OFFSET(keyint_min), FF_OPT_TYPE_INT, 25, INT_MIN, INT_MAX, V|E},
692{"refs", "reference frames to consider for motion compensation (Snow)", OFFSET(refs), FF_OPT_TYPE_INT, 1, INT_MIN, INT_MAX, V|E},
119aae1d
PI
693{"chromaoffset", "chroma qp offset from luma", OFFSET(chromaoffset), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
694{"bframebias", "influences how often B-frames are used", OFFSET(bframebias), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
97041923 695{"trellis", "rate-distortion optimal quantization", OFFSET(trellis), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|A|E},
119aae1d 696{"directpred", "direct mv prediction mode - 0 (none), 1 (spatial), 2 (temporal)", OFFSET(directpred), FF_OPT_TYPE_INT, 2, INT_MIN, INT_MAX, V|E},
97041923 697{"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"},
119aae1d 698{"wpred", "weighted biprediction for b-frames (H.264)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_WPRED, INT_MIN, INT_MAX, V|E, "flags2"},
d3075ed5 699{"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"},
119aae1d
PI
700{"8x8dct", "high profile 8x8 transform (H.264)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_8X8DCT, INT_MIN, INT_MAX, V|E, "flags2"},
701{"fastpskip", "fast pskip (H.264)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_FASTPSKIP, INT_MIN, INT_MAX, V|E, "flags2"},
702{"aud", "access unit delimiters (H.264)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_AUD, INT_MIN, INT_MAX, V|E, "flags2"},
703{"brdo", "b-frame rate-distortion optimization", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_BRDO, INT_MIN, INT_MAX, V|E, "flags2"},
2606f38a 704{"skiprd", "RD optimal MB level residual skiping", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_SKIP_RD, INT_MIN, INT_MAX, V|E, "flags2"},
119aae1d
PI
705{"complexityblur", "reduce fluctuations in qp (before curve compression)", OFFSET(complexityblur), FF_OPT_TYPE_FLOAT, 20.0, FLT_MIN, FLT_MAX, V|E},
706{"deblockalpha", "in-loop deblocking filter alphac0 parameter", OFFSET(deblockalpha), FF_OPT_TYPE_INT, DEFAULT, -6, 6, V|E},
707{"deblockbeta", "in-loop deblocking filter beta parameter", OFFSET(deblockbeta), FF_OPT_TYPE_INT, DEFAULT, -6, 6, V|E},
708{"partitions", "macroblock subpartition sizes to consider", OFFSET(partitions), FF_OPT_TYPE_FLAGS, DEFAULT, INT_MIN, INT_MAX, V|E, "partitions"},
58f7833e
RS
709{"parti4x4", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_I4X4, INT_MIN, INT_MAX, V|E, "partitions"},
710{"parti8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_I8X8, INT_MIN, INT_MAX, V|E, "partitions"},
711{"partp4x4", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_P4X4, INT_MIN, INT_MAX, V|E, "partitions"},
712{"partp8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_P8X8, INT_MIN, INT_MAX, V|E, "partitions"},
713{"partb8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_B8X8, INT_MIN, INT_MAX, V|E, "partitions"},
119aae1d 714{"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},
1dd509b1 715{"mv0_threshold", NULL, OFFSET(mv0_threshold), FF_OPT_TYPE_INT, 256, 0, INT_MAX, V|E},
307eb248 716{"ivlc", "intra vlc table", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_INTRA_VLC, INT_MIN, INT_MAX, V|E, "flags2"},
119aae1d 717{"b_sensitivity", "adjusts sensitivity of b_frame_strategy 1", OFFSET(b_sensitivity), FF_OPT_TYPE_INT, 40, 1, INT_MAX, V|E},
a403fc03 718{"compression_level", NULL, OFFSET(compression_level), FF_OPT_TYPE_INT, FF_COMPRESSION_DEFAULT, INT_MIN, INT_MAX, V|A|E},
119aae1d
PI
719{"use_lpc", "sets whether to use LPC mode (FLAC)", OFFSET(use_lpc), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
720{"lpc_coeff_precision", "LPC coefficient precision (FLAC)", OFFSET(lpc_coeff_precision), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, A|E},
a403fc03
JR
721{"min_prediction_order", NULL, OFFSET(min_prediction_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
722{"max_prediction_order", NULL, OFFSET(max_prediction_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
119aae1d 723{"prediction_order_method", "search method for selecting prediction order", OFFSET(prediction_order_method), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
a403fc03
JR
724{"min_partition_order", NULL, OFFSET(min_partition_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
725{"max_partition_order", NULL, OFFSET(max_partition_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
119aae1d 726{"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},
80d617f5 727{"drop_frame_timecode", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_DROP_FRAME_TIMECODE, INT_MIN, INT_MAX, V|E, "flags2"},
860a40c8
MN
728{NULL},
729};
730
8bbf6db9
MN
731#undef A
732#undef V
5e89b50b
PI
733#undef S
734#undef E
735#undef D
736#undef DEFAULT
8bbf6db9 737
860a40c8 738static AVClass av_codec_context_class = { "AVCodecContext", context_to_name, options };
43465395 739
a949d72e 740void avcodec_get_context_defaults(AVCodecContext *s){
9740beff
MN
741 memset(s, 0, sizeof(AVCodecContext));
742
43465395 743 s->av_class= &av_codec_context_class;
73a8ceaa
PI
744
745 av_opt_set_defaults(s);
746
a949d72e 747 s->rc_eq= "tex^qComp";
c0df9d75 748 s->time_base= (AVRational){0,1};
1e491e29
MN
749 s->get_buffer= avcodec_default_get_buffer;
750 s->release_buffer= avcodec_default_release_buffer;
a33c7159 751 s->get_format= avcodec_default_get_format;
9c3d33d6 752 s->execute= avcodec_default_execute;
5ff85f1d 753 s->sample_aspect_ratio= (AVRational){0,1};
644a9262 754 s->pix_fmt= PIX_FMT_NONE;
1319a77b 755 s->sample_fmt= SAMPLE_FMT_S16; // FIXME: set to NONE
8c3dd5dc 756
2a2bbcb0 757 s->palctrl = NULL;
e1c2a5a0 758 s->reget_buffer= avcodec_default_reget_buffer;
a949d72e
MN
759}
760
761/**
762 * allocates a AVCodecContext and set it to defaults.
115329f1 763 * this can be deallocated by simply calling free()
a949d72e 764 */
7ffbb60e 765AVCodecContext *avcodec_alloc_context(void){
9740beff 766 AVCodecContext *avctx= av_malloc(sizeof(AVCodecContext));
115329f1 767
a949d72e 768 if(avctx==NULL) return NULL;
115329f1 769
a949d72e 770 avcodec_get_context_defaults(avctx);
115329f1 771
a949d72e
MN
772 return avctx;
773}
774
9740beff
MN
775void avcodec_get_frame_defaults(AVFrame *pic){
776 memset(pic, 0, sizeof(AVFrame));
777
778 pic->pts= AV_NOPTS_VALUE;
c342499d 779 pic->key_frame= 1;
9740beff
MN
780}
781
1e491e29 782/**
492cd3a9 783 * allocates a AVPFrame and set it to defaults.
115329f1 784 * this can be deallocated by simply calling free()
1e491e29 785 */
492cd3a9 786AVFrame *avcodec_alloc_frame(void){
9740beff 787 AVFrame *pic= av_malloc(sizeof(AVFrame));
115329f1 788
9740beff 789 if(pic==NULL) return NULL;
115329f1 790
9740beff 791 avcodec_get_frame_defaults(pic);
115329f1 792
1e491e29
MN
793 return pic;
794}
795
de6d9b64
FB
796int avcodec_open(AVCodecContext *avctx, AVCodec *codec)
797{
ddebfb15 798 int ret= -1;
115329f1 799
ddebfb15
MN
800 entangled_thread_counter++;
801 if(entangled_thread_counter != 1){
802 av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
803 goto end;
804 }
de6d9b64 805
09770af8 806 if(avctx->codec)
ddebfb15 807 goto end;
09770af8 808
0edf8a7a
PG
809 if (codec->priv_data_size > 0) {
810 avctx->priv_data = av_mallocz(codec->priv_data_size);
115329f1 811 if (!avctx->priv_data)
ddebfb15 812 goto end;
0edf8a7a
PG
813 } else {
814 avctx->priv_data = NULL;
815 }
21adafec
MN
816
817 if(avctx->coded_width && avctx->coded_height)
818 avcodec_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
819 else if(avctx->width && avctx->height)
820 avcodec_set_dimensions(avctx, avctx->width, avctx->height);
821
0ecca7a4
MN
822 if((avctx->coded_width||avctx->coded_height) && avcodec_check_dimensions(avctx,avctx->coded_width,avctx->coded_height)){
823 av_freep(&avctx->priv_data);
ddebfb15 824 goto end;
0ecca7a4
MN
825 }
826
b5c85991
MN
827 avctx->codec = codec;
828 avctx->codec_id = codec->id;
829 avctx->frame_number = 0;
de6d9b64
FB
830 ret = avctx->codec->init(avctx);
831 if (ret < 0) {
3123dd79 832 av_freep(&avctx->priv_data);
b5c85991 833 avctx->codec= NULL;
ddebfb15 834 goto end;
de6d9b64 835 }
ddebfb15
MN
836 ret=0;
837end:
838 entangled_thread_counter--;
839 return ret;
de6d9b64
FB
840}
841
115329f1 842int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
de6d9b64
FB
843 const short *samples)
844{
0ecca7a4
MN
845 if(buf_size < FF_MIN_BUFFER_SIZE && 0){
846 av_log(avctx, AV_LOG_ERROR, "buffer smaller then minimum size\n");
847 return -1;
848 }
6f824977
MN
849 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || samples){
850 int ret = avctx->codec->encode(avctx, buf, buf_size, (void *)samples);
851 avctx->frame_number++;
852 return ret;
853 }else
854 return 0;
de6d9b64
FB
855}
856
115329f1 857int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
492cd3a9 858 const AVFrame *pict)
de6d9b64 859{
0ecca7a4
MN
860 if(buf_size < FF_MIN_BUFFER_SIZE){
861 av_log(avctx, AV_LOG_ERROR, "buffer smaller then minimum size\n");
862 return -1;
863 }
864 if(avcodec_check_dimensions(avctx,avctx->width,avctx->height))
865 return -1;
6f824977
MN
866 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || pict){
867 int ret = avctx->codec->encode(avctx, buf, buf_size, (void *)pict);
868 avctx->frame_number++;
bb628dae 869 emms_c(); //needed to avoid an emms_c() call before every return;
115329f1 870
6f824977
MN
871 return ret;
872 }else
873 return 0;
de6d9b64
FB
874}
875
115329f1 876int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
240c1657
FB
877 const AVSubtitle *sub)
878{
879 int ret;
880 ret = avctx->codec->encode(avctx, buf, buf_size, (void *)sub);
881 avctx->frame_number++;
882 return ret;
883}
884
115329f1
DB
885/**
886 * decode a frame.
f138f883
MN
887 * @param buf bitstream buffer, must be FF_INPUT_BUFFER_PADDING_SIZE larger then the actual read bytes
888 * because some optimized bitstream readers read 32 or 64 bit at once and could read over the end
889 * @param buf_size the size of the buffer in bytes
890 * @param got_picture_ptr zero if no frame could be decompressed, Otherwise, it is non zero
891 * @return -1 if error, otherwise return the number of
115329f1 892 * bytes used.
f138f883 893 */
115329f1 894int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
de6d9b64 895 int *got_picture_ptr,
0c1a9eda 896 uint8_t *buf, int buf_size)
de6d9b64
FB
897{
898 int ret;
115329f1 899
53db1cae 900 *got_picture_ptr= 0;
0ecca7a4
MN
901 if((avctx->coded_width||avctx->coded_height) && avcodec_check_dimensions(avctx,avctx->coded_width,avctx->coded_height))
902 return -1;
934982c4 903 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || buf_size){
115329f1 904 ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
934982c4 905 buf, buf_size);
6bb925f4 906
bb628dae 907 emms_c(); //needed to avoid an emms_c() call before every return;
115329f1
DB
908
909 if (*got_picture_ptr)
934982c4
MN
910 avctx->frame_number++;
911 }else
912 ret= 0;
913
de6d9b64
FB
914 return ret;
915}
916
917/* decode an audio frame. return -1 if error, otherwise return the
918 *number of bytes used. If no frame could be decompressed,
919 *frame_size_ptr is zero. Otherwise, it is the decompressed frame
920 *size in BYTES. */
115329f1 921int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples,
de6d9b64 922 int *frame_size_ptr,
0c1a9eda 923 uint8_t *buf, int buf_size)
de6d9b64
FB
924{
925 int ret;
926
53db1cae 927 *frame_size_ptr= 0;
fec9ccb7 928 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || buf_size){
115329f1 929 ret = avctx->codec->decode(avctx, samples, frame_size_ptr,
fec9ccb7
MN
930 buf, buf_size);
931 avctx->frame_number++;
932 }else
933 ret= 0;
de6d9b64
FB
934 return ret;
935}
936
240c1657
FB
937/* decode a subtitle message. return -1 if error, otherwise return the
938 *number of bytes used. If no subtitle could be decompressed,
939 *got_sub_ptr is zero. Otherwise, the subtitle is stored in *sub. */
940int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
941 int *got_sub_ptr,
942 const uint8_t *buf, int buf_size)
943{
944 int ret;
945
946 *got_sub_ptr = 0;
115329f1 947 ret = avctx->codec->decode(avctx, sub, got_sub_ptr,
240c1657
FB
948 (uint8_t *)buf, buf_size);
949 if (*got_sub_ptr)
950 avctx->frame_number++;
951 return ret;
952}
953
de6d9b64
FB
954int avcodec_close(AVCodecContext *avctx)
955{
ddebfb15
MN
956 entangled_thread_counter++;
957 if(entangled_thread_counter != 1){
958 av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
959 entangled_thread_counter--;
960 return -1;
961 }
962
de6d9b64
FB
963 if (avctx->codec->close)
964 avctx->codec->close(avctx);
eea8c08f 965 avcodec_default_free_buffers(avctx);
3123dd79 966 av_freep(&avctx->priv_data);
de6d9b64 967 avctx->codec = NULL;
ddebfb15 968 entangled_thread_counter--;
de6d9b64
FB
969 return 0;
970}
971
972AVCodec *avcodec_find_encoder(enum CodecID id)
973{
974 AVCodec *p;
975 p = first_avcodec;
976 while (p) {
977 if (p->encode != NULL && p->id == id)
978 return p;
979 p = p->next;
980 }
981 return NULL;
982}
983
98f3b098
A
984AVCodec *avcodec_find_encoder_by_name(const char *name)
985{
986 AVCodec *p;
987 p = first_avcodec;
988 while (p) {
989 if (p->encode != NULL && strcmp(name,p->name) == 0)
990 return p;
991 p = p->next;
992 }
993 return NULL;
994}
995
de6d9b64
FB
996AVCodec *avcodec_find_decoder(enum CodecID id)
997{
998 AVCodec *p;
999 p = first_avcodec;
1000 while (p) {
1001 if (p->decode != NULL && p->id == id)
1002 return p;
1003 p = p->next;
1004 }
1005 return NULL;
1006}
1007
1008AVCodec *avcodec_find_decoder_by_name(const char *name)
1009{
1010 AVCodec *p;
1011 p = first_avcodec;
1012 while (p) {
1013 if (p->decode != NULL && strcmp(name,p->name) == 0)
1014 return p;
1015 p = p->next;
1016 }
1017 return NULL;
1018}
1019
de6d9b64
FB
1020void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1021{
1022 const char *codec_name;
1023 AVCodec *p;
1024 char buf1[32];
623563c0 1025 char channels_str[100];
a96b68b7 1026 int bitrate;
de6d9b64
FB
1027
1028 if (encode)
1029 p = avcodec_find_encoder(enc->codec_id);
1030 else
1031 p = avcodec_find_decoder(enc->codec_id);
1032
1033 if (p) {
1034 codec_name = p->name;
98ce5991
FB
1035 if (!encode && enc->codec_id == CODEC_ID_MP3) {
1036 if (enc->sub_id == 2)
1037 codec_name = "mp2";
1038 else if (enc->sub_id == 1)
1039 codec_name = "mp1";
1040 }
985180a1
FB
1041 } else if (enc->codec_id == CODEC_ID_MPEG2TS) {
1042 /* fake mpeg2 transport stream codec (currently not
1043 registered) */
1044 codec_name = "mpeg2ts";
de6d9b64
FB
1045 } else if (enc->codec_name[0] != '\0') {
1046 codec_name = enc->codec_name;
1047 } else {
1048 /* output avi tags */
115329f1 1049 if( isprint(enc->codec_tag&0xFF) && isprint((enc->codec_tag>>8)&0xFF)
b983a5c6 1050 && isprint((enc->codec_tag>>16)&0xFF) && isprint((enc->codec_tag>>24)&0xFF)){
115329f1 1051 snprintf(buf1, sizeof(buf1), "%c%c%c%c / 0x%04X",
de6d9b64
FB
1052 enc->codec_tag & 0xff,
1053 (enc->codec_tag >> 8) & 0xff,
1054 (enc->codec_tag >> 16) & 0xff,
b983a5c6
MN
1055 (enc->codec_tag >> 24) & 0xff,
1056 enc->codec_tag);
de6d9b64
FB
1057 } else {
1058 snprintf(buf1, sizeof(buf1), "0x%04x", enc->codec_tag);
1059 }
1060 codec_name = buf1;
1061 }
1062
1063 switch(enc->codec_type) {
1064 case CODEC_TYPE_VIDEO:
1065 snprintf(buf, buf_size,
1066 "Video: %s%s",
7d1c3fc1 1067 codec_name, enc->mb_decision ? " (hq)" : "");
82c0c4ba 1068 if (enc->pix_fmt != PIX_FMT_NONE) {
cf087595
FB
1069 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1070 ", %s",
9bbffbb1 1071 avcodec_get_pix_fmt_name(enc->pix_fmt));
cf087595 1072 }
de6d9b64
FB
1073 if (enc->width) {
1074 snprintf(buf + strlen(buf), buf_size - strlen(buf),
21189011
MN
1075 ", %dx%d",
1076 enc->width, enc->height);
1077 if(av_log_get_level() >= AV_LOG_DEBUG){
1078 int g= ff_gcd(enc->time_base.num, enc->time_base.den);
1079 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1080 ", %d/%d",
1081 enc->time_base.num/g, enc->time_base.den/g);
1082 }
de6d9b64 1083 }
4bfad535
FB
1084 if (encode) {
1085 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1086 ", q=%d-%d", enc->qmin, enc->qmax);
1087 }
a96b68b7 1088 bitrate = enc->bit_rate;
de6d9b64
FB
1089 break;
1090 case CODEC_TYPE_AUDIO:
1091 snprintf(buf, buf_size,
1092 "Audio: %s",
1093 codec_name);
e0d2714a
J
1094 switch (enc->channels) {
1095 case 1:
623563c0 1096 strcpy(channels_str, "mono");
e0d2714a
J
1097 break;
1098 case 2:
623563c0 1099 strcpy(channels_str, "stereo");
e0d2714a
J
1100 break;
1101 case 6:
623563c0 1102 strcpy(channels_str, "5:1");
e0d2714a
J
1103 break;
1104 default:
2fc8ea24 1105 snprintf(channels_str, sizeof(channels_str), "%d channels", enc->channels);
e0d2714a
J
1106 break;
1107 }
de6d9b64
FB
1108 if (enc->sample_rate) {
1109 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1110 ", %d Hz, %s",
1111 enc->sample_rate,
e0d2714a 1112 channels_str);
de6d9b64 1113 }
115329f1 1114
a96b68b7
FB
1115 /* for PCM codecs, compute bitrate directly */
1116 switch(enc->codec_id) {
b461b3bc
RD
1117 case CODEC_ID_PCM_S32LE:
1118 case CODEC_ID_PCM_S32BE:
1119 case CODEC_ID_PCM_U32LE:
1120 case CODEC_ID_PCM_U32BE:
1121 bitrate = enc->sample_rate * enc->channels * 32;
1122 break;
1123 case CODEC_ID_PCM_S24LE:
1124 case CODEC_ID_PCM_S24BE:
1125 case CODEC_ID_PCM_U24LE:
1126 case CODEC_ID_PCM_U24BE:
1127 case CODEC_ID_PCM_S24DAUD:
1128 bitrate = enc->sample_rate * enc->channels * 24;
1129 break;
a96b68b7
FB
1130 case CODEC_ID_PCM_S16LE:
1131 case CODEC_ID_PCM_S16BE:
1132 case CODEC_ID_PCM_U16LE:
1133 case CODEC_ID_PCM_U16BE:
a190b7e9 1134 bitrate = enc->sample_rate * enc->channels * 16;
a96b68b7
FB
1135 break;
1136 case CODEC_ID_PCM_S8:
1137 case CODEC_ID_PCM_U8:
1138 case CODEC_ID_PCM_ALAW:
1139 case CODEC_ID_PCM_MULAW:
a190b7e9 1140 bitrate = enc->sample_rate * enc->channels * 8;
a96b68b7
FB
1141 break;
1142 default:
1143 bitrate = enc->bit_rate;
1144 break;
1145 }
de6d9b64 1146 break;
985180a1
FB
1147 case CODEC_TYPE_DATA:
1148 snprintf(buf, buf_size, "Data: %s", codec_name);
240c1657
FB
1149 bitrate = enc->bit_rate;
1150 break;
1151 case CODEC_TYPE_SUBTITLE:
1152 snprintf(buf, buf_size, "Subtitle: %s", codec_name);
985180a1
FB
1153 bitrate = enc->bit_rate;
1154 break;
de6d9b64 1155 default:
9fe5a7b8
MN
1156 snprintf(buf, buf_size, "Invalid Codec type %d", enc->codec_type);
1157 return;
de6d9b64 1158 }
4bfad535
FB
1159 if (encode) {
1160 if (enc->flags & CODEC_FLAG_PASS1)
1161 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1162 ", pass 1");
1163 if (enc->flags & CODEC_FLAG_PASS2)
1164 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1165 ", pass 2");
1166 }
a96b68b7 1167 if (bitrate != 0) {
115329f1 1168 snprintf(buf + strlen(buf), buf_size - strlen(buf),
a96b68b7 1169 ", %d kb/s", bitrate / 1000);
de6d9b64
FB
1170 }
1171}
1172
156e5023
NK
1173unsigned avcodec_version( void )
1174{
1175 return LIBAVCODEC_VERSION_INT;
1176}
cf087595 1177
8bceb6af
NK
1178unsigned avcodec_build( void )
1179{
1180 return LIBAVCODEC_BUILD;
1181}
1182
43a80cce
MN
1183static void init_crcs(void){
1184 av_crc04C11DB7= av_mallocz_static(sizeof(AVCRC) * 257);
e027d0a8 1185 av_crc8005 = av_mallocz_static(sizeof(AVCRC) * 257);
b865838e 1186 av_crc07 = av_mallocz_static(sizeof(AVCRC) * 257);
43a80cce 1187 av_crc_init(av_crc04C11DB7, 0, 32, 0x04c11db7, sizeof(AVCRC)*257);
e027d0a8 1188 av_crc_init(av_crc8005 , 0, 16, 0x8005 , sizeof(AVCRC)*257);
b865838e 1189 av_crc_init(av_crc07 , 0, 8, 0x07 , sizeof(AVCRC)*257);
43a80cce
MN
1190}
1191
de6d9b64
FB
1192/* must be called before any other functions */
1193void avcodec_init(void)
1194{
0344cd0a
AB
1195 static int inited = 0;
1196
1197 if (inited != 0)
bb270c08 1198 return;
0344cd0a
AB
1199 inited = 1;
1200
486497e0 1201 dsputil_static_init();
43a80cce 1202 init_crcs();
de6d9b64
FB
1203}
1204
7a06ff14
MN
1205/**
1206 * Flush buffers, should be called when seeking or when swicthing to a different stream.
1207 */
1c2a8c7f
MN
1208void avcodec_flush_buffers(AVCodecContext *avctx)
1209{
7a06ff14
MN
1210 if(avctx->codec->flush)
1211 avctx->codec->flush(avctx);
1c2a8c7f
MN
1212}
1213
b100eab8 1214void avcodec_default_free_buffers(AVCodecContext *s){
d90cf87b
MN
1215 int i, j;
1216
1217 if(s->internal_buffer==NULL) return;
115329f1 1218
d90cf87b
MN
1219 for(i=0; i<INTERNAL_BUFFER_SIZE; i++){
1220 InternalBuffer *buf= &((InternalBuffer*)s->internal_buffer)[i];
1221 for(j=0; j<4; j++){
1222 av_freep(&buf->base[j]);
1223 buf->data[j]= NULL;
1224 }
1225 }
1226 av_freep(&s->internal_buffer);
115329f1 1227
d90cf87b
MN
1228 s->internal_buffer_count=0;
1229}
1230
d8085ea7
MN
1231char av_get_pict_type_char(int pict_type){
1232 switch(pict_type){
115329f1
DB
1233 case I_TYPE: return 'I';
1234 case P_TYPE: return 'P';
1235 case B_TYPE: return 'B';
1236 case S_TYPE: return 'S';
1237 case SI_TYPE:return 'i';
1238 case SP_TYPE:return 'p';
d8085ea7
MN
1239 default: return '?';
1240 }
1241}
1242
ac3e1834
BC
1243int av_get_bits_per_sample(enum CodecID codec_id){
1244 switch(codec_id){
5da71469 1245 case CODEC_ID_ADPCM_SBPRO_2:
f1b163e0 1246 return 2;
5da71469 1247 case CODEC_ID_ADPCM_SBPRO_3:
f1b163e0 1248 return 3;
5da71469 1249 case CODEC_ID_ADPCM_SBPRO_4:
f1b163e0
AJ
1250 case CODEC_ID_ADPCM_CT:
1251 return 4;
ac3e1834
BC
1252 case CODEC_ID_PCM_ALAW:
1253 case CODEC_ID_PCM_MULAW:
1254 case CODEC_ID_PCM_S8:
1255 case CODEC_ID_PCM_U8:
1256 return 8;
1257 case CODEC_ID_PCM_S16BE:
1258 case CODEC_ID_PCM_S16LE:
1259 case CODEC_ID_PCM_U16BE:
1260 case CODEC_ID_PCM_U16LE:
1261 return 16;
1262 case CODEC_ID_PCM_S24DAUD:
1263 case CODEC_ID_PCM_S24BE:
1264 case CODEC_ID_PCM_S24LE:
1265 case CODEC_ID_PCM_U24BE:
1266 case CODEC_ID_PCM_U24LE:
1267 return 24;
1268 case CODEC_ID_PCM_S32BE:
1269 case CODEC_ID_PCM_S32LE:
1270 case CODEC_ID_PCM_U32BE:
1271 case CODEC_ID_PCM_U32LE:
1272 return 32;
1273 default:
1274 return 0;
1275 }
1276}
1277
2450cff2 1278#if !defined(HAVE_THREADS)
ca8ad847
MN
1279int avcodec_thread_init(AVCodecContext *s, int thread_count){
1280 return -1;
1281}
1282#endif
ad2b531d
MR
1283
1284unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1285{
1286 unsigned int n = 0;
1287
1288 while(v >= 0xff) {
1289 *s++ = 0xff;
1290 v -= 0xff;
1291 n++;
1292 }
1293 *s = v;
1294 n++;
1295 return n;
1296}
1005f542
CH
1297
1298/* Wrapper to work around the lack of mkstemp() on mingw/cygin.
1299 * Also, tries to create file in /tmp first, if possible.
1300 * *prefix can be a character constant; *filename will be allocated internally.
1301 * Returns file descriptor of opened file (or -1 on error)
1302 * and opened file name in **filename. */
1303int av_tempfile(char *prefix, char **filename) {
1304 int fd=-1;
2f30a81d 1305#ifdef __MINGW32__
1005f542
CH
1306 *filename = tempnam(".", prefix);
1307#else
1308 size_t len = strlen(prefix) + 12; /* room for "/tmp/" and "XXXXXX\0" */
f2508b17 1309 *filename = av_malloc(len);
1005f542
CH
1310#endif
1311 /* -----common section-----*/
1312 if (*filename == NULL) {
1313 av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot allocate file name\n");
1314 return -1;
1315 }
2f30a81d 1316#ifdef __MINGW32__
1005f542
CH
1317 fd = open(*filename, _O_RDWR | _O_BINARY | _O_CREAT, 0444);
1318#else
1319 snprintf(*filename, len, "/tmp/%sXXXXXX", prefix);
1320 fd = mkstemp(*filename);
1321 if (fd < 0) {
1322 snprintf(*filename, len, "./%sXXXXXX", prefix);
1323 fd = mkstemp(*filename);
1324 }
1325#endif
1326 /* -----common section-----*/
1327 if (fd < 0) {
1328 av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot open temporary file %s\n", *filename);
1329 return -1;
1330 }
1331 return fd; /* success */
1332}