Export symbols of several H.264 intra prediction functions
[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
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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,
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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];
237e4938
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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]){
237e4938
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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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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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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
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325 return 0;
326}
327
492cd3a9 328void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic){
1e491e29 329 int i;
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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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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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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
MN
399 return fmt[0];
400}
401
43465395
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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;
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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
PI
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},
424{"bt", "set video bitrate tolerance (in bits/s)", OFFSET(bit_rate_tolerance), FF_OPT_TYPE_INT, AV_CODEC_DEFAULT_BITRATE*20, INT_MIN, INT_MAX, V|E},
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},
860a40c8 467{"rate_emu", NULL, 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"},
512{"ms", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_MS, INT_MIN, INT_MAX, V|D, "bug"},
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},
5cc9b87f 515{"strict", "how strictly to follow the standards", OFFSET(strict_std_compliance), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "strict"},
fac862c6
MN
516{"very", NULL, 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_VERY_STRICT, INT_MIN, INT_MAX, V|E, "strict"},
517{"strict", NULL, 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_STRICT, INT_MIN, INT_MAX, V|E, "strict"},
518{"normal", NULL, 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_NORMAL, INT_MIN, INT_MAX, V|E, "strict"},
519{"inofficial", NULL, 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_INOFFICIAL, INT_MIN, INT_MAX, V|E, "strict"},
520{"experimental", NULL, 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},
97041923 522{"er", "set error resilience strategy", OFFSET(error_resilience), FF_OPT_TYPE_INT, FF_ER_CAREFUL, INT_MIN, INT_MAX, 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},
4a1bb619 559{"idct", "use inverse DCT", 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"},
637b5326
MN
585{"aspect", NULL, OFFSET(sample_aspect_ratio), FF_OPT_TYPE_RATIONAL, DEFAULT, 0, 10, V|E},
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"},
606{"mb_qmin", "obsolete, use vqmin", OFFSET(mb_qmin), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
607{"mb_qmax", "obsolete, use vqmax", 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},
8bbf6db9
MN
657{"rc_init_occupancy", NULL, OFFSET(rc_initial_buffer_occupancy), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
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},
ec9127c4 661{"antialias", NULL, 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},
8bbf6db9
MN
672{"skip_top", NULL, OFFSET(skip_top), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D},
673{"skip_bottom", NULL, 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},
8c3dd5dc 690{"cqp", NULL, 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},
58f7833e
RS
693{"chromaoffset", NULL, OFFSET(chromaoffset), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
694{"bframebias", NULL, 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},
8c3dd5dc 696{"directpred", NULL, 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"},
58f7833e
RS
698{"wpred", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_WPRED, INT_MIN, INT_MAX, V|E, "flags2"},
699{"mixed_refs", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_MIXED_REFS, INT_MIN, INT_MAX, V|E, "flags2"},
700{"8x8dct", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_8X8DCT, INT_MIN, INT_MAX, V|E, "flags2"},
701{"fastpskip", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_FASTPSKIP, INT_MIN, INT_MAX, V|E, "flags2"},
702{"aud", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_AUD, INT_MIN, INT_MAX, V|E, "flags2"},
703{"brdo", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_BRDO, INT_MIN, INT_MAX, V|E, "flags2"},
8c3dd5dc 704{"complexityblur", NULL, OFFSET(complexityblur), FF_OPT_TYPE_FLOAT, 20.0, FLT_MIN, FLT_MAX, V|E},
58f7833e
RS
705{"deblockalpha", NULL, OFFSET(deblockalpha), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
706{"deblockbeta", NULL, OFFSET(deblockbeta), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
707{"partitions", NULL, OFFSET(partitions), FF_OPT_TYPE_FLAGS, DEFAULT, INT_MIN, INT_MAX, V|E, "partitions"},
708{"parti4x4", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_I4X4, INT_MIN, INT_MAX, V|E, "partitions"},
709{"parti8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_I8X8, INT_MIN, INT_MAX, V|E, "partitions"},
710{"partp4x4", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_P4X4, INT_MIN, INT_MAX, V|E, "partitions"},
711{"partp8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_P8X8, INT_MIN, INT_MAX, V|E, "partitions"},
712{"partb8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_B8X8, INT_MIN, INT_MAX, V|E, "partitions"},
39a64e30 713{"sc_factor", NULL, OFFSET(scenechange_factor), FF_OPT_TYPE_INT, 6, 0, INT_MAX, V|E},
1dd509b1 714{"mv0_threshold", NULL, OFFSET(mv0_threshold), FF_OPT_TYPE_INT, 256, 0, INT_MAX, V|E},
307eb248 715{"ivlc", "intra vlc table", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_INTRA_VLC, INT_MIN, INT_MAX, V|E, "flags2"},
f9243d34 716{"b_sensitivity", NULL, OFFSET(b_sensitivity), FF_OPT_TYPE_INT, 40, 1, INT_MAX, V|E},
a403fc03
JR
717{"compression_level", NULL, OFFSET(compression_level), FF_OPT_TYPE_INT, FF_COMPRESSION_DEFAULT, INT_MIN, INT_MAX, V|A|E},
718{"use_lpc", NULL, OFFSET(use_lpc), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
719{"lpc_coeff_precision", NULL, OFFSET(lpc_coeff_precision), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, A|E},
720{"min_prediction_order", NULL, OFFSET(min_prediction_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
721{"max_prediction_order", NULL, OFFSET(max_prediction_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
722{"prediction_order_method", NULL, OFFSET(prediction_order_method), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
723{"min_partition_order", NULL, OFFSET(min_partition_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
724{"max_partition_order", NULL, OFFSET(max_partition_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
80d617f5
BC
725{"timecode_frame_start", NULL, OFFSET(timecode_frame_start), FF_OPT_TYPE_INT, 0, 0, INT_MAX, V|E},
726{"drop_frame_timecode", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_DROP_FRAME_TIMECODE, INT_MIN, INT_MAX, V|E, "flags2"},
860a40c8
MN
727{NULL},
728};
729
8bbf6db9
MN
730#undef A
731#undef V
5e89b50b
PI
732#undef S
733#undef E
734#undef D
735#undef DEFAULT
8bbf6db9 736
860a40c8 737static AVClass av_codec_context_class = { "AVCodecContext", context_to_name, options };
43465395 738
a949d72e 739void avcodec_get_context_defaults(AVCodecContext *s){
9740beff
MN
740 memset(s, 0, sizeof(AVCodecContext));
741
43465395 742 s->av_class= &av_codec_context_class;
73a8ceaa
PI
743
744 av_opt_set_defaults(s);
745
a949d72e 746 s->rc_eq= "tex^qComp";
c0df9d75 747 s->time_base= (AVRational){0,1};
1e491e29
MN
748 s->get_buffer= avcodec_default_get_buffer;
749 s->release_buffer= avcodec_default_release_buffer;
a33c7159 750 s->get_format= avcodec_default_get_format;
9c3d33d6 751 s->execute= avcodec_default_execute;
5ff85f1d 752 s->sample_aspect_ratio= (AVRational){0,1};
644a9262 753 s->pix_fmt= PIX_FMT_NONE;
1319a77b 754 s->sample_fmt= SAMPLE_FMT_S16; // FIXME: set to NONE
8c3dd5dc 755
2a2bbcb0 756 s->palctrl = NULL;
e1c2a5a0 757 s->reget_buffer= avcodec_default_reget_buffer;
a949d72e
MN
758}
759
760/**
761 * allocates a AVCodecContext and set it to defaults.
115329f1 762 * this can be deallocated by simply calling free()
a949d72e 763 */
7ffbb60e 764AVCodecContext *avcodec_alloc_context(void){
9740beff 765 AVCodecContext *avctx= av_malloc(sizeof(AVCodecContext));
115329f1 766
a949d72e 767 if(avctx==NULL) return NULL;
115329f1 768
a949d72e 769 avcodec_get_context_defaults(avctx);
115329f1 770
a949d72e
MN
771 return avctx;
772}
773
9740beff
MN
774void avcodec_get_frame_defaults(AVFrame *pic){
775 memset(pic, 0, sizeof(AVFrame));
776
777 pic->pts= AV_NOPTS_VALUE;
c342499d 778 pic->key_frame= 1;
9740beff
MN
779}
780
1e491e29 781/**
492cd3a9 782 * allocates a AVPFrame and set it to defaults.
115329f1 783 * this can be deallocated by simply calling free()
1e491e29 784 */
492cd3a9 785AVFrame *avcodec_alloc_frame(void){
9740beff 786 AVFrame *pic= av_malloc(sizeof(AVFrame));
115329f1 787
9740beff 788 if(pic==NULL) return NULL;
115329f1 789
9740beff 790 avcodec_get_frame_defaults(pic);
115329f1 791
1e491e29
MN
792 return pic;
793}
794
de6d9b64
FB
795int avcodec_open(AVCodecContext *avctx, AVCodec *codec)
796{
ddebfb15 797 int ret= -1;
115329f1 798
ddebfb15
MN
799 entangled_thread_counter++;
800 if(entangled_thread_counter != 1){
801 av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
802 goto end;
803 }
de6d9b64 804
09770af8 805 if(avctx->codec)
ddebfb15 806 goto end;
09770af8 807
0edf8a7a
PG
808 if (codec->priv_data_size > 0) {
809 avctx->priv_data = av_mallocz(codec->priv_data_size);
115329f1 810 if (!avctx->priv_data)
ddebfb15 811 goto end;
0edf8a7a
PG
812 } else {
813 avctx->priv_data = NULL;
814 }
21adafec
MN
815
816 if(avctx->coded_width && avctx->coded_height)
817 avcodec_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
818 else if(avctx->width && avctx->height)
819 avcodec_set_dimensions(avctx, avctx->width, avctx->height);
820
0ecca7a4
MN
821 if((avctx->coded_width||avctx->coded_height) && avcodec_check_dimensions(avctx,avctx->coded_width,avctx->coded_height)){
822 av_freep(&avctx->priv_data);
ddebfb15 823 goto end;
0ecca7a4
MN
824 }
825
b5c85991
MN
826 avctx->codec = codec;
827 avctx->codec_id = codec->id;
828 avctx->frame_number = 0;
de6d9b64
FB
829 ret = avctx->codec->init(avctx);
830 if (ret < 0) {
3123dd79 831 av_freep(&avctx->priv_data);
b5c85991 832 avctx->codec= NULL;
ddebfb15 833 goto end;
de6d9b64 834 }
ddebfb15
MN
835 ret=0;
836end:
837 entangled_thread_counter--;
838 return ret;
de6d9b64
FB
839}
840
115329f1 841int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
de6d9b64
FB
842 const short *samples)
843{
0ecca7a4
MN
844 if(buf_size < FF_MIN_BUFFER_SIZE && 0){
845 av_log(avctx, AV_LOG_ERROR, "buffer smaller then minimum size\n");
846 return -1;
847 }
6f824977
MN
848 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || samples){
849 int ret = avctx->codec->encode(avctx, buf, buf_size, (void *)samples);
850 avctx->frame_number++;
851 return ret;
852 }else
853 return 0;
de6d9b64
FB
854}
855
115329f1 856int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
492cd3a9 857 const AVFrame *pict)
de6d9b64 858{
0ecca7a4
MN
859 if(buf_size < FF_MIN_BUFFER_SIZE){
860 av_log(avctx, AV_LOG_ERROR, "buffer smaller then minimum size\n");
861 return -1;
862 }
863 if(avcodec_check_dimensions(avctx,avctx->width,avctx->height))
864 return -1;
6f824977
MN
865 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || pict){
866 int ret = avctx->codec->encode(avctx, buf, buf_size, (void *)pict);
867 avctx->frame_number++;
bb628dae 868 emms_c(); //needed to avoid an emms_c() call before every return;
115329f1 869
6f824977
MN
870 return ret;
871 }else
872 return 0;
de6d9b64
FB
873}
874
115329f1 875int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
240c1657
FB
876 const AVSubtitle *sub)
877{
878 int ret;
879 ret = avctx->codec->encode(avctx, buf, buf_size, (void *)sub);
880 avctx->frame_number++;
881 return ret;
882}
883
115329f1
DB
884/**
885 * decode a frame.
f138f883
MN
886 * @param buf bitstream buffer, must be FF_INPUT_BUFFER_PADDING_SIZE larger then the actual read bytes
887 * because some optimized bitstream readers read 32 or 64 bit at once and could read over the end
888 * @param buf_size the size of the buffer in bytes
889 * @param got_picture_ptr zero if no frame could be decompressed, Otherwise, it is non zero
890 * @return -1 if error, otherwise return the number of
115329f1 891 * bytes used.
f138f883 892 */
115329f1 893int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
de6d9b64 894 int *got_picture_ptr,
0c1a9eda 895 uint8_t *buf, int buf_size)
de6d9b64
FB
896{
897 int ret;
115329f1 898
53db1cae 899 *got_picture_ptr= 0;
0ecca7a4
MN
900 if((avctx->coded_width||avctx->coded_height) && avcodec_check_dimensions(avctx,avctx->coded_width,avctx->coded_height))
901 return -1;
934982c4 902 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || buf_size){
115329f1 903 ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
934982c4 904 buf, buf_size);
6bb925f4 905
bb628dae 906 emms_c(); //needed to avoid an emms_c() call before every return;
115329f1
DB
907
908 if (*got_picture_ptr)
934982c4
MN
909 avctx->frame_number++;
910 }else
911 ret= 0;
912
de6d9b64
FB
913 return ret;
914}
915
916/* decode an audio frame. return -1 if error, otherwise return the
917 *number of bytes used. If no frame could be decompressed,
918 *frame_size_ptr is zero. Otherwise, it is the decompressed frame
919 *size in BYTES. */
115329f1 920int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples,
de6d9b64 921 int *frame_size_ptr,
0c1a9eda 922 uint8_t *buf, int buf_size)
de6d9b64
FB
923{
924 int ret;
925
53db1cae 926 *frame_size_ptr= 0;
fec9ccb7 927 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || buf_size){
115329f1 928 ret = avctx->codec->decode(avctx, samples, frame_size_ptr,
fec9ccb7
MN
929 buf, buf_size);
930 avctx->frame_number++;
931 }else
932 ret= 0;
de6d9b64
FB
933 return ret;
934}
935
240c1657
FB
936/* decode a subtitle message. return -1 if error, otherwise return the
937 *number of bytes used. If no subtitle could be decompressed,
938 *got_sub_ptr is zero. Otherwise, the subtitle is stored in *sub. */
939int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
940 int *got_sub_ptr,
941 const uint8_t *buf, int buf_size)
942{
943 int ret;
944
945 *got_sub_ptr = 0;
115329f1 946 ret = avctx->codec->decode(avctx, sub, got_sub_ptr,
240c1657
FB
947 (uint8_t *)buf, buf_size);
948 if (*got_sub_ptr)
949 avctx->frame_number++;
950 return ret;
951}
952
de6d9b64
FB
953int avcodec_close(AVCodecContext *avctx)
954{
ddebfb15
MN
955 entangled_thread_counter++;
956 if(entangled_thread_counter != 1){
957 av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
958 entangled_thread_counter--;
959 return -1;
960 }
961
de6d9b64
FB
962 if (avctx->codec->close)
963 avctx->codec->close(avctx);
eea8c08f 964 avcodec_default_free_buffers(avctx);
3123dd79 965 av_freep(&avctx->priv_data);
de6d9b64 966 avctx->codec = NULL;
ddebfb15 967 entangled_thread_counter--;
de6d9b64
FB
968 return 0;
969}
970
971AVCodec *avcodec_find_encoder(enum CodecID id)
972{
973 AVCodec *p;
974 p = first_avcodec;
975 while (p) {
976 if (p->encode != NULL && p->id == id)
977 return p;
978 p = p->next;
979 }
980 return NULL;
981}
982
98f3b098
A
983AVCodec *avcodec_find_encoder_by_name(const char *name)
984{
985 AVCodec *p;
986 p = first_avcodec;
987 while (p) {
988 if (p->encode != NULL && strcmp(name,p->name) == 0)
989 return p;
990 p = p->next;
991 }
992 return NULL;
993}
994
de6d9b64
FB
995AVCodec *avcodec_find_decoder(enum CodecID id)
996{
997 AVCodec *p;
998 p = first_avcodec;
999 while (p) {
1000 if (p->decode != NULL && p->id == id)
1001 return p;
1002 p = p->next;
1003 }
1004 return NULL;
1005}
1006
1007AVCodec *avcodec_find_decoder_by_name(const char *name)
1008{
1009 AVCodec *p;
1010 p = first_avcodec;
1011 while (p) {
1012 if (p->decode != NULL && strcmp(name,p->name) == 0)
1013 return p;
1014 p = p->next;
1015 }
1016 return NULL;
1017}
1018
de6d9b64
FB
1019void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1020{
1021 const char *codec_name;
1022 AVCodec *p;
1023 char buf1[32];
623563c0 1024 char channels_str[100];
a96b68b7 1025 int bitrate;
de6d9b64
FB
1026
1027 if (encode)
1028 p = avcodec_find_encoder(enc->codec_id);
1029 else
1030 p = avcodec_find_decoder(enc->codec_id);
1031
1032 if (p) {
1033 codec_name = p->name;
98ce5991
FB
1034 if (!encode && enc->codec_id == CODEC_ID_MP3) {
1035 if (enc->sub_id == 2)
1036 codec_name = "mp2";
1037 else if (enc->sub_id == 1)
1038 codec_name = "mp1";
1039 }
985180a1
FB
1040 } else if (enc->codec_id == CODEC_ID_MPEG2TS) {
1041 /* fake mpeg2 transport stream codec (currently not
1042 registered) */
1043 codec_name = "mpeg2ts";
de6d9b64
FB
1044 } else if (enc->codec_name[0] != '\0') {
1045 codec_name = enc->codec_name;
1046 } else {
1047 /* output avi tags */
115329f1 1048 if( isprint(enc->codec_tag&0xFF) && isprint((enc->codec_tag>>8)&0xFF)
b983a5c6 1049 && isprint((enc->codec_tag>>16)&0xFF) && isprint((enc->codec_tag>>24)&0xFF)){
115329f1 1050 snprintf(buf1, sizeof(buf1), "%c%c%c%c / 0x%04X",
de6d9b64
FB
1051 enc->codec_tag & 0xff,
1052 (enc->codec_tag >> 8) & 0xff,
1053 (enc->codec_tag >> 16) & 0xff,
b983a5c6
MN
1054 (enc->codec_tag >> 24) & 0xff,
1055 enc->codec_tag);
de6d9b64
FB
1056 } else {
1057 snprintf(buf1, sizeof(buf1), "0x%04x", enc->codec_tag);
1058 }
1059 codec_name = buf1;
1060 }
1061
1062 switch(enc->codec_type) {
1063 case CODEC_TYPE_VIDEO:
1064 snprintf(buf, buf_size,
1065 "Video: %s%s",
7d1c3fc1 1066 codec_name, enc->mb_decision ? " (hq)" : "");
82c0c4ba 1067 if (enc->pix_fmt != PIX_FMT_NONE) {
cf087595
FB
1068 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1069 ", %s",
9bbffbb1 1070 avcodec_get_pix_fmt_name(enc->pix_fmt));
cf087595 1071 }
de6d9b64
FB
1072 if (enc->width) {
1073 snprintf(buf + strlen(buf), buf_size - strlen(buf),
21189011
MN
1074 ", %dx%d",
1075 enc->width, enc->height);
1076 if(av_log_get_level() >= AV_LOG_DEBUG){
1077 int g= ff_gcd(enc->time_base.num, enc->time_base.den);
1078 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1079 ", %d/%d",
1080 enc->time_base.num/g, enc->time_base.den/g);
1081 }
de6d9b64 1082 }
4bfad535
FB
1083 if (encode) {
1084 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1085 ", q=%d-%d", enc->qmin, enc->qmax);
1086 }
a96b68b7 1087 bitrate = enc->bit_rate;
de6d9b64
FB
1088 break;
1089 case CODEC_TYPE_AUDIO:
1090 snprintf(buf, buf_size,
1091 "Audio: %s",
1092 codec_name);
e0d2714a
J
1093 switch (enc->channels) {
1094 case 1:
623563c0 1095 strcpy(channels_str, "mono");
e0d2714a
J
1096 break;
1097 case 2:
623563c0 1098 strcpy(channels_str, "stereo");
e0d2714a
J
1099 break;
1100 case 6:
623563c0 1101 strcpy(channels_str, "5:1");
e0d2714a
J
1102 break;
1103 default:
2fc8ea24 1104 snprintf(channels_str, sizeof(channels_str), "%d channels", enc->channels);
e0d2714a
J
1105 break;
1106 }
de6d9b64
FB
1107 if (enc->sample_rate) {
1108 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1109 ", %d Hz, %s",
1110 enc->sample_rate,
e0d2714a 1111 channels_str);
de6d9b64 1112 }
115329f1 1113
a96b68b7
FB
1114 /* for PCM codecs, compute bitrate directly */
1115 switch(enc->codec_id) {
b461b3bc
RD
1116 case CODEC_ID_PCM_S32LE:
1117 case CODEC_ID_PCM_S32BE:
1118 case CODEC_ID_PCM_U32LE:
1119 case CODEC_ID_PCM_U32BE:
1120 bitrate = enc->sample_rate * enc->channels * 32;
1121 break;
1122 case CODEC_ID_PCM_S24LE:
1123 case CODEC_ID_PCM_S24BE:
1124 case CODEC_ID_PCM_U24LE:
1125 case CODEC_ID_PCM_U24BE:
1126 case CODEC_ID_PCM_S24DAUD:
1127 bitrate = enc->sample_rate * enc->channels * 24;
1128 break;
a96b68b7
FB
1129 case CODEC_ID_PCM_S16LE:
1130 case CODEC_ID_PCM_S16BE:
1131 case CODEC_ID_PCM_U16LE:
1132 case CODEC_ID_PCM_U16BE:
a190b7e9 1133 bitrate = enc->sample_rate * enc->channels * 16;
a96b68b7
FB
1134 break;
1135 case CODEC_ID_PCM_S8:
1136 case CODEC_ID_PCM_U8:
1137 case CODEC_ID_PCM_ALAW:
1138 case CODEC_ID_PCM_MULAW:
a190b7e9 1139 bitrate = enc->sample_rate * enc->channels * 8;
a96b68b7
FB
1140 break;
1141 default:
1142 bitrate = enc->bit_rate;
1143 break;
1144 }
de6d9b64 1145 break;
985180a1
FB
1146 case CODEC_TYPE_DATA:
1147 snprintf(buf, buf_size, "Data: %s", codec_name);
240c1657
FB
1148 bitrate = enc->bit_rate;
1149 break;
1150 case CODEC_TYPE_SUBTITLE:
1151 snprintf(buf, buf_size, "Subtitle: %s", codec_name);
985180a1
FB
1152 bitrate = enc->bit_rate;
1153 break;
de6d9b64 1154 default:
9fe5a7b8
MN
1155 snprintf(buf, buf_size, "Invalid Codec type %d", enc->codec_type);
1156 return;
de6d9b64 1157 }
4bfad535
FB
1158 if (encode) {
1159 if (enc->flags & CODEC_FLAG_PASS1)
1160 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1161 ", pass 1");
1162 if (enc->flags & CODEC_FLAG_PASS2)
1163 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1164 ", pass 2");
1165 }
a96b68b7 1166 if (bitrate != 0) {
115329f1 1167 snprintf(buf + strlen(buf), buf_size - strlen(buf),
a96b68b7 1168 ", %d kb/s", bitrate / 1000);
de6d9b64
FB
1169 }
1170}
1171
156e5023
NK
1172unsigned avcodec_version( void )
1173{
1174 return LIBAVCODEC_VERSION_INT;
1175}
cf087595 1176
8bceb6af
NK
1177unsigned avcodec_build( void )
1178{
1179 return LIBAVCODEC_BUILD;
1180}
1181
43a80cce
MN
1182static void init_crcs(void){
1183 av_crc04C11DB7= av_mallocz_static(sizeof(AVCRC) * 257);
e027d0a8 1184 av_crc8005 = av_mallocz_static(sizeof(AVCRC) * 257);
b865838e 1185 av_crc07 = av_mallocz_static(sizeof(AVCRC) * 257);
43a80cce 1186 av_crc_init(av_crc04C11DB7, 0, 32, 0x04c11db7, sizeof(AVCRC)*257);
e027d0a8 1187 av_crc_init(av_crc8005 , 0, 16, 0x8005 , sizeof(AVCRC)*257);
b865838e 1188 av_crc_init(av_crc07 , 0, 8, 0x07 , sizeof(AVCRC)*257);
43a80cce
MN
1189}
1190
de6d9b64
FB
1191/* must be called before any other functions */
1192void avcodec_init(void)
1193{
0344cd0a
AB
1194 static int inited = 0;
1195
1196 if (inited != 0)
bb270c08 1197 return;
0344cd0a
AB
1198 inited = 1;
1199
486497e0 1200 dsputil_static_init();
43a80cce 1201 init_crcs();
de6d9b64
FB
1202}
1203
7a06ff14
MN
1204/**
1205 * Flush buffers, should be called when seeking or when swicthing to a different stream.
1206 */
1c2a8c7f
MN
1207void avcodec_flush_buffers(AVCodecContext *avctx)
1208{
7a06ff14
MN
1209 if(avctx->codec->flush)
1210 avctx->codec->flush(avctx);
1c2a8c7f
MN
1211}
1212
b100eab8 1213void avcodec_default_free_buffers(AVCodecContext *s){
d90cf87b
MN
1214 int i, j;
1215
1216 if(s->internal_buffer==NULL) return;
115329f1 1217
d90cf87b
MN
1218 for(i=0; i<INTERNAL_BUFFER_SIZE; i++){
1219 InternalBuffer *buf= &((InternalBuffer*)s->internal_buffer)[i];
1220 for(j=0; j<4; j++){
1221 av_freep(&buf->base[j]);
1222 buf->data[j]= NULL;
1223 }
1224 }
1225 av_freep(&s->internal_buffer);
115329f1 1226
d90cf87b
MN
1227 s->internal_buffer_count=0;
1228}
1229
d8085ea7
MN
1230char av_get_pict_type_char(int pict_type){
1231 switch(pict_type){
115329f1
DB
1232 case I_TYPE: return 'I';
1233 case P_TYPE: return 'P';
1234 case B_TYPE: return 'B';
1235 case S_TYPE: return 'S';
1236 case SI_TYPE:return 'i';
1237 case SP_TYPE:return 'p';
d8085ea7
MN
1238 default: return '?';
1239 }
1240}
1241
ac3e1834
BC
1242int av_get_bits_per_sample(enum CodecID codec_id){
1243 switch(codec_id){
5da71469 1244 case CODEC_ID_ADPCM_SBPRO_2:
f1b163e0 1245 return 2;
5da71469 1246 case CODEC_ID_ADPCM_SBPRO_3:
f1b163e0 1247 return 3;
5da71469 1248 case CODEC_ID_ADPCM_SBPRO_4:
f1b163e0
AJ
1249 case CODEC_ID_ADPCM_CT:
1250 return 4;
ac3e1834
BC
1251 case CODEC_ID_PCM_ALAW:
1252 case CODEC_ID_PCM_MULAW:
1253 case CODEC_ID_PCM_S8:
1254 case CODEC_ID_PCM_U8:
1255 return 8;
1256 case CODEC_ID_PCM_S16BE:
1257 case CODEC_ID_PCM_S16LE:
1258 case CODEC_ID_PCM_U16BE:
1259 case CODEC_ID_PCM_U16LE:
1260 return 16;
1261 case CODEC_ID_PCM_S24DAUD:
1262 case CODEC_ID_PCM_S24BE:
1263 case CODEC_ID_PCM_S24LE:
1264 case CODEC_ID_PCM_U24BE:
1265 case CODEC_ID_PCM_U24LE:
1266 return 24;
1267 case CODEC_ID_PCM_S32BE:
1268 case CODEC_ID_PCM_S32LE:
1269 case CODEC_ID_PCM_U32BE:
1270 case CODEC_ID_PCM_U32LE:
1271 return 32;
1272 default:
1273 return 0;
1274 }
1275}
1276
2450cff2 1277#if !defined(HAVE_THREADS)
ca8ad847
MN
1278int avcodec_thread_init(AVCodecContext *s, int thread_count){
1279 return -1;
1280}
1281#endif
ad2b531d
MR
1282
1283unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1284{
1285 unsigned int n = 0;
1286
1287 while(v >= 0xff) {
1288 *s++ = 0xff;
1289 v -= 0xff;
1290 n++;
1291 }
1292 *s = v;
1293 n++;
1294 return n;
1295}
1005f542
CH
1296
1297/* Wrapper to work around the lack of mkstemp() on mingw/cygin.
1298 * Also, tries to create file in /tmp first, if possible.
1299 * *prefix can be a character constant; *filename will be allocated internally.
1300 * Returns file descriptor of opened file (or -1 on error)
1301 * and opened file name in **filename. */
1302int av_tempfile(char *prefix, char **filename) {
1303 int fd=-1;
2f30a81d 1304#ifdef __MINGW32__
1005f542
CH
1305 *filename = tempnam(".", prefix);
1306#else
1307 size_t len = strlen(prefix) + 12; /* room for "/tmp/" and "XXXXXX\0" */
f2508b17 1308 *filename = av_malloc(len);
1005f542
CH
1309#endif
1310 /* -----common section-----*/
1311 if (*filename == NULL) {
1312 av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot allocate file name\n");
1313 return -1;
1314 }
2f30a81d 1315#ifdef __MINGW32__
1005f542
CH
1316 fd = open(*filename, _O_RDWR | _O_BINARY | _O_CREAT, 0444);
1317#else
1318 snprintf(*filename, len, "/tmp/%sXXXXXX", prefix);
1319 fd = mkstemp(*filename);
1320 if (fd < 0) {
1321 snprintf(*filename, len, "./%sXXXXXX", prefix);
1322 fd = mkstemp(*filename);
1323 }
1324#endif
1325 /* -----common section-----*/
1326 if (fd < 0) {
1327 av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot open temporary file %s\n", *filename);
1328 return -1;
1329 }
1330 return fd; /* success */
1331}