s/FFmpeg-devel/ffmpeg-devel/
[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 *
b78e7197
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6 * This file is part of FFmpeg.
7 *
8 * FFmpeg is free software; you can redistribute it and/or
ff4ec49e
FB
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
983e3246
MN
23/**
24 * @file utils.c
25 * utils.
26 */
115329f1 27
7246177d 28/* needed for mkstemp() */
d0feff2a 29#define _XOPEN_SOURCE 600
7246177d 30
7fb94406 31#include "libavutil/avstring.h"
245976da
DB
32#include "libavutil/integer.h"
33#include "libavutil/crc.h"
de6d9b64 34#include "avcodec.h"
3123dd79 35#include "dsputil.h"
6fd46414 36#include "opt.h"
db7ae7d1 37#include "imgconvert.h"
9e82a113 38#include "audioconvert.h"
7246177d 39#include <stdlib.h>
9b879566 40#include <stdarg.h>
4c263142 41#include <limits.h>
860a40c8 42#include <float.h>
6ffa87d3 43#if !defined(HAVE_MKSTEMP)
1005f542
CH
44#include <fcntl.h>
45#endif
de6d9b64 46
44608ac7
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47const uint8_t ff_reverse[256]={
480x00,0x80,0x40,0xC0,0x20,0xA0,0x60,0xE0,0x10,0x90,0x50,0xD0,0x30,0xB0,0x70,0xF0,
490x08,0x88,0x48,0xC8,0x28,0xA8,0x68,0xE8,0x18,0x98,0x58,0xD8,0x38,0xB8,0x78,0xF8,
500x04,0x84,0x44,0xC4,0x24,0xA4,0x64,0xE4,0x14,0x94,0x54,0xD4,0x34,0xB4,0x74,0xF4,
510x0C,0x8C,0x4C,0xCC,0x2C,0xAC,0x6C,0xEC,0x1C,0x9C,0x5C,0xDC,0x3C,0xBC,0x7C,0xFC,
520x02,0x82,0x42,0xC2,0x22,0xA2,0x62,0xE2,0x12,0x92,0x52,0xD2,0x32,0xB2,0x72,0xF2,
530x0A,0x8A,0x4A,0xCA,0x2A,0xAA,0x6A,0xEA,0x1A,0x9A,0x5A,0xDA,0x3A,0xBA,0x7A,0xFA,
540x06,0x86,0x46,0xC6,0x26,0xA6,0x66,0xE6,0x16,0x96,0x56,0xD6,0x36,0xB6,0x76,0xF6,
550x0E,0x8E,0x4E,0xCE,0x2E,0xAE,0x6E,0xEE,0x1E,0x9E,0x5E,0xDE,0x3E,0xBE,0x7E,0xFE,
560x01,0x81,0x41,0xC1,0x21,0xA1,0x61,0xE1,0x11,0x91,0x51,0xD1,0x31,0xB1,0x71,0xF1,
570x09,0x89,0x49,0xC9,0x29,0xA9,0x69,0xE9,0x19,0x99,0x59,0xD9,0x39,0xB9,0x79,0xF9,
580x05,0x85,0x45,0xC5,0x25,0xA5,0x65,0xE5,0x15,0x95,0x55,0xD5,0x35,0xB5,0x75,0xF5,
590x0D,0x8D,0x4D,0xCD,0x2D,0xAD,0x6D,0xED,0x1D,0x9D,0x5D,0xDD,0x3D,0xBD,0x7D,0xFD,
600x03,0x83,0x43,0xC3,0x23,0xA3,0x63,0xE3,0x13,0x93,0x53,0xD3,0x33,0xB3,0x73,0xF3,
610x0B,0x8B,0x4B,0xCB,0x2B,0xAB,0x6B,0xEB,0x1B,0x9B,0x5B,0xDB,0x3B,0xBB,0x7B,0xFB,
620x07,0x87,0x47,0xC7,0x27,0xA7,0x67,0xE7,0x17,0x97,0x57,0xD7,0x37,0xB7,0x77,0xF7,
630x0F,0x8F,0x4F,0xCF,0x2F,0xAF,0x6F,0xEF,0x1F,0x9F,0x5F,0xDF,0x3F,0xBF,0x7F,0xFF,
64};
65
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66static int volatile entangled_thread_counter=0;
67
5c91a675 68void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size)
8e1e6f31 69{
115329f1 70 if(min_size < *size)
8e1e6f31 71 return ptr;
115329f1 72
0ecca7a4 73 *size= FFMAX(17*min_size/16 + 32, min_size);
8e1e6f31 74
978805b2
MN
75 ptr= av_realloc(ptr, *size);
76 if(!ptr) //we could set this to the unmodified min_size but this is safer if the user lost the ptr and uses NULL now
77 *size= 0;
78
79 return ptr;
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80}
81
de6d9b64 82/* encoder management */
e6df765e 83static AVCodec *first_avcodec = NULL;
de6d9b64 84
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85AVCodec *av_codec_next(AVCodec *c){
86 if(c) return c->next;
87 else return first_avcodec;
88}
89
335a761a 90void register_avcodec(AVCodec *codec)
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91{
92 AVCodec **p;
7a961a46 93 avcodec_init();
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94 p = &first_avcodec;
95 while (*p != NULL) p = &(*p)->next;
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96 *p = codec;
97 codec->next = NULL;
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98}
99
21adafec
MN
100void avcodec_set_dimensions(AVCodecContext *s, int width, int height){
101 s->coded_width = width;
102 s->coded_height= height;
103 s->width = -((-width )>>s->lowres);
104 s->height= -((-height)>>s->lowres);
105}
106
d90cf87b 107typedef struct InternalBuffer{
1e491e29 108 int last_pic_num;
d90cf87b 109 uint8_t *base[4];
1e491e29 110 uint8_t *data[4];
237e4938 111 int linesize[4];
0701006e
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112 int width, height;
113 enum PixelFormat pix_fmt;
d90cf87b
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114}InternalBuffer;
115
116#define INTERNAL_BUFFER_SIZE 32
1e491e29 117
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118#define ALIGN(x, a) (((x)+(a)-1)&~((a)-1))
119
120void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height){
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121 int w_align= 1;
122 int h_align= 1;
123
f0bbfc4a
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124 switch(s->pix_fmt){
125 case PIX_FMT_YUV420P:
71e445fc 126 case PIX_FMT_YUYV422:
ebb177dd 127 case PIX_FMT_UYVY422:
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128 case PIX_FMT_YUV422P:
129 case PIX_FMT_YUV444P:
130 case PIX_FMT_GRAY8:
34380af0
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131 case PIX_FMT_GRAY16BE:
132 case PIX_FMT_GRAY16LE:
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133 case PIX_FMT_YUVJ420P:
134 case PIX_FMT_YUVJ422P:
135 case PIX_FMT_YUVJ444P:
b70335a2 136 case PIX_FMT_YUVA420P:
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137 w_align= 16; //FIXME check for non mpeg style codecs and use less alignment
138 h_align= 16;
139 break;
140 case PIX_FMT_YUV411P:
71e445fc 141 case PIX_FMT_UYYVYY411:
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142 w_align=32;
143 h_align=8;
144 break;
145 case PIX_FMT_YUV410P:
146 if(s->codec_id == CODEC_ID_SVQ1){
147 w_align=64;
148 h_align=64;
149 }
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150 case PIX_FMT_RGB555:
151 if(s->codec_id == CODEC_ID_RPZA){
152 w_align=4;
153 h_align=4;
154 }
155 case PIX_FMT_PAL8:
156 if(s->codec_id == CODEC_ID_SMC){
157 w_align=4;
158 h_align=4;
159 }
f0bbfc4a 160 break;
c31b8121
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161 case PIX_FMT_BGR24:
162 if((s->codec_id == CODEC_ID_MSZH) || (s->codec_id == CODEC_ID_ZLIB)){
163 w_align=4;
164 h_align=4;
165 }
166 break;
f0bbfc4a
MN
167 default:
168 w_align= 1;
169 h_align= 1;
170 break;
171 }
172
173 *width = ALIGN(*width , w_align);
174 *height= ALIGN(*height, h_align);
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175 if(s->codec_id == CODEC_ID_H264)
176 *height+=2; // some of the optimized chroma MC reads one line too much
f0bbfc4a
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177}
178
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179int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h){
180 if((int)w>0 && (int)h>0 && (w+128)*(uint64_t)(h+128) < INT_MAX/4)
181 return 0;
115329f1 182
0ecca7a4
MN
183 av_log(av_log_ctx, AV_LOG_ERROR, "picture size invalid (%ux%u)\n", w, h);
184 return -1;
185}
186
492cd3a9 187int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic){
1e491e29 188 int i;
f0bbfc4a
MN
189 int w= s->width;
190 int h= s->height;
d90cf87b 191 InternalBuffer *buf;
237e4938 192 int *picture_number;
0ecca7a4 193
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194 if(pic->data[0]!=NULL) {
195 av_log(s, AV_LOG_ERROR, "pic->data[0]!=NULL in avcodec_default_get_buffer\n");
196 return -1;
197 }
198 if(s->internal_buffer_count >= INTERNAL_BUFFER_SIZE) {
199 av_log(s, AV_LOG_ERROR, "internal_buffer_count overflow (missing release_buffer?)\n");
200 return -1;
201 }
1e491e29 202
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MN
203 if(avcodec_check_dimensions(s,w,h))
204 return -1;
205
d90cf87b 206 if(s->internal_buffer==NULL){
6ebc89ac 207 s->internal_buffer= av_mallocz((INTERNAL_BUFFER_SIZE+1)*sizeof(InternalBuffer));
d90cf87b
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208 }
209#if 0
210 s->internal_buffer= av_fast_realloc(
115329f1
DB
211 s->internal_buffer,
212 &s->internal_buffer_size,
d90cf87b
MN
213 sizeof(InternalBuffer)*FFMAX(99, s->internal_buffer_count+1)/*FIXME*/
214 );
215#endif
115329f1 216
d90cf87b 217 buf= &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count];
6ebc89ac 218 picture_number= &(((InternalBuffer*)s->internal_buffer)[INTERNAL_BUFFER_SIZE]).last_pic_num; //FIXME ugly hack
237e4938 219 (*picture_number)++;
115329f1 220
0701006e
MN
221 if(buf->base[0] && (buf->width != w || buf->height != h || buf->pix_fmt != s->pix_fmt)){
222 for(i=0; i<4; i++){
223 av_freep(&buf->base[i]);
224 buf->data[i]= NULL;
225 }
226 }
227
d90cf87b 228 if(buf->base[0]){
237e4938
MN
229 pic->age= *picture_number - buf->last_pic_num;
230 buf->last_pic_num= *picture_number;
1e491e29 231 }else{
f0bbfc4a 232 int h_chroma_shift, v_chroma_shift;
db7ae7d1
VS
233 int size[4] = {0};
234 int tmpsize;
c7622f9a 235 AVPicture picture;
503bc402 236 int stride_align[4];
c7622f9a 237
1e491e29 238 avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
f0bbfc4a
MN
239
240 avcodec_align_dimensions(s, &w, &h);
115329f1 241
1e491e29
MN
242 if(!(s->flags&CODEC_FLAG_EMU_EDGE)){
243 w+= EDGE_WIDTH*2;
244 h+= EDGE_WIDTH*2;
245 }
5b67307a 246
db7ae7d1
VS
247 ff_fill_linesize(&picture, s->pix_fmt, w);
248
503bc402
MN
249 for (i=0; i<4; i++){
250//STRIDE_ALIGN is 8 for SSE* but this does not work for SVQ1 chroma planes
251//we could change STRIDE_ALIGN to 16 for x86/sse but it would increase the
252//picture size unneccessarily in some cases. The solution here is not
253//pretty and better ideas are welcome!
254#ifdef HAVE_MMX
255 if(s->codec_id == CODEC_ID_SVQ1)
256 stride_align[i]= 16;
257 else
258#endif
259 stride_align[i] = STRIDE_ALIGN;
260 picture.linesize[i] = ALIGN(picture.linesize[i], stride_align[i]);
261 }
db7ae7d1 262
db7ae7d1
VS
263 tmpsize = ff_fill_pointer(&picture, NULL, s->pix_fmt, h);
264
265 for (i=0; i<3 && picture.data[i+1]; i++)
266 size[i] = picture.data[i+1] - picture.data[i];
cf73e32a 267 size[i] = tmpsize - (picture.data[i] - picture.data[0]);
c7622f9a 268
d90cf87b 269 buf->last_pic_num= -256*256*256*64;
c7622f9a
MN
270 memset(buf->base, 0, sizeof(buf->base));
271 memset(buf->data, 0, sizeof(buf->data));
1e491e29 272
b70335a2 273 for(i=0; i<4 && size[i]; i++){
2c19981a
MN
274 const int h_shift= i==0 ? 0 : h_chroma_shift;
275 const int v_shift= i==0 ? 0 : v_chroma_shift;
1e491e29 276
c7622f9a 277 buf->linesize[i]= picture.linesize[i];
1e491e29 278
c7622f9a 279 buf->base[i]= av_malloc(size[i]+16); //FIXME 16
d90cf87b 280 if(buf->base[i]==NULL) return -1;
c7622f9a
MN
281 memset(buf->base[i], 128, size[i]);
282
283 // no edge if EDEG EMU or not planar YUV, we check for PAL8 redundantly to protect against a exploitable bug regression ...
115329f1 284 if((s->flags&CODEC_FLAG_EMU_EDGE) || (s->pix_fmt == PIX_FMT_PAL8) || !size[2])
d90cf87b 285 buf->data[i] = buf->base[i];
1e491e29 286 else
503bc402 287 buf->data[i] = buf->base[i] + ALIGN((buf->linesize[i]*EDGE_WIDTH>>v_shift) + (EDGE_WIDTH>>h_shift), stride_align[i]);
1e491e29 288 }
0701006e
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289 buf->width = s->width;
290 buf->height = s->height;
291 buf->pix_fmt= s->pix_fmt;
1e491e29
MN
292 pic->age= 256*256*256*64;
293 }
237e4938 294 pic->type= FF_BUFFER_TYPE_INTERNAL;
1e491e29 295
d90cf87b
MN
296 for(i=0; i<4; i++){
297 pic->base[i]= buf->base[i];
298 pic->data[i]= buf->data[i];
237e4938 299 pic->linesize[i]= buf->linesize[i];
d90cf87b
MN
300 }
301 s->internal_buffer_count++;
302
79de84f2
MN
303 pic->reordered_opaque= s->reordered_opaque;
304
385c820b
AS
305 if(s->debug&FF_DEBUG_BUFFERS)
306 av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p, %d buffers used\n", pic, s->internal_buffer_count);
307
1e491e29
MN
308 return 0;
309}
310
492cd3a9 311void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic){
1e491e29 312 int i;
6829ac8d 313 InternalBuffer *buf, *last;
d90cf87b 314
4e00e76b 315 assert(pic->type==FF_BUFFER_TYPE_INTERNAL);
59c673d5 316 assert(s->internal_buffer_count);
d90cf87b 317
b1609412 318 buf = NULL; /* avoids warning */
d90cf87b
MN
319 for(i=0; i<s->internal_buffer_count; i++){ //just 3-5 checks so is not worth to optimize
320 buf= &((InternalBuffer*)s->internal_buffer)[i];
321 if(buf->data[0] == pic->data[0])
322 break;
323 }
324 assert(i < s->internal_buffer_count);
325 s->internal_buffer_count--;
326 last = &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count];
327
6829ac8d 328 FFSWAP(InternalBuffer, *buf, *last);
d90cf87b 329
b70335a2 330 for(i=0; i<4; i++){
1e491e29 331 pic->data[i]=NULL;
d90cf87b
MN
332// pic->base[i]=NULL;
333 }
1e491e29 334//printf("R%X\n", pic->opaque);
385c820b
AS
335
336 if(s->debug&FF_DEBUG_BUFFERS)
337 av_log(s, AV_LOG_DEBUG, "default_release_buffer called on pic %p, %d buffers used\n", pic, s->internal_buffer_count);
1e491e29
MN
338}
339
e1c2a5a0
RT
340int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic){
341 AVFrame temp_pic;
342 int i;
343
344 /* If no picture return a new buffer */
345 if(pic->data[0] == NULL) {
346 /* We will copy from buffer, so must be readable */
347 pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
348 return s->get_buffer(s, pic);
349 }
350
351 /* If internal buffer type return the same buffer */
352 if(pic->type == FF_BUFFER_TYPE_INTERNAL)
353 return 0;
354
355 /*
356 * Not internal type and reget_buffer not overridden, emulate cr buffer
357 */
358 temp_pic = *pic;
359 for(i = 0; i < 4; i++)
360 pic->data[i] = pic->base[i] = NULL;
361 pic->opaque = NULL;
362 /* Allocate new frame */
363 if (s->get_buffer(s, pic))
364 return -1;
365 /* Copy image data from old buffer to new buffer */
636d6a4a 366 av_picture_copy((AVPicture*)pic, (AVPicture*)&temp_pic, s->pix_fmt, s->width,
e1c2a5a0
RT
367 s->height);
368 s->release_buffer(s, &temp_pic); // Release old frame
369 return 0;
370}
371
3a84713a 372int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void *arg, int *ret, int count, int size){
9c3d33d6
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373 int i;
374
375 for(i=0; i<count; i++){
3a84713a 376 int r= func(c, (char*)arg + i*size);
9c3d33d6
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377 if(ret) ret[i]= r;
378 }
379 return 0;
380}
381
494c56d3 382enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt){
a33c7159
MN
383 return fmt[0];
384}
385
43465395
MN
386static const char* context_to_name(void* ptr) {
387 AVCodecContext *avc= ptr;
388
389 if(avc && avc->codec && avc->codec->name)
115329f1 390 return avc->codec->name;
43465395
MN
391 else
392 return "NULL";
393}
394
66acccf0 395#define OFFSET(x) offsetof(AVCodecContext,x)
755bfeab 396#define DEFAULT 0 //should be NAN but it does not work as it is not a constant in glibc as required by ANSI/ISO C
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MN
397//these names are too long to be readable
398#define V AV_OPT_FLAG_VIDEO_PARAM
399#define A AV_OPT_FLAG_AUDIO_PARAM
400#define S AV_OPT_FLAG_SUBTITLE_PARAM
115329f1 401#define E AV_OPT_FLAG_ENCODING_PARAM
8bbf6db9 402#define D AV_OPT_FLAG_DECODING_PARAM
860a40c8 403
0b97eea3 404#define AV_CODEC_DEFAULT_BITRATE 200*1000
8c3dd5dc 405
62a05b5b 406static const AVOption options[]={
6289025d
MN
407{"b", "set bitrate (in bits/s)", OFFSET(bit_rate), FF_OPT_TYPE_INT, AV_CODEC_DEFAULT_BITRATE, INT_MIN, INT_MAX, V|E},
408{"ab", "set bitrate (in bits/s)", OFFSET(bit_rate), FF_OPT_TYPE_INT, 64*1000, INT_MIN, INT_MAX, A|E},
a45bc592 409{"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},
f3eec1cf 410{"flags", NULL, OFFSET(flags), FF_OPT_TYPE_FLAGS, DEFAULT, 0, UINT_MAX, V|A|E|D, "flags"},
fac862c6
MN
411{"mv4", "use four motion vector by macroblock (mpeg4)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_4MV, INT_MIN, INT_MAX, V|E, "flags"},
412{"obmc", "use overlapped block motion compensation (h263+)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_OBMC, INT_MIN, INT_MAX, V|E, "flags"},
413{"qpel", "use 1/4 pel motion compensation", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_QPEL, INT_MIN, INT_MAX, V|E, "flags"},
414{"loop", "use loop filter", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_LOOP_FILTER, INT_MIN, INT_MAX, V|E, "flags"},
415{"qscale", "use fixed qscale", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_QSCALE, INT_MIN, INT_MAX, 0, "flags"},
416{"gmc", "use gmc", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_GMC, INT_MIN, INT_MAX, V|E, "flags"},
417{"mv0", "always try a mb with mv=<0,0>", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_MV0, INT_MIN, INT_MAX, V|E, "flags"},
418{"part", "use data partitioning", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PART, INT_MIN, INT_MAX, V|E, "flags"},
419{"input_preserved", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG_INPUT_PRESERVED, INT_MIN, INT_MAX, 0, "flags"},
420{"pass1", "use internal 2pass ratecontrol in first pass mode", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PASS1, INT_MIN, INT_MAX, 0, "flags"},
421{"pass2", "use internal 2pass ratecontrol in second pass mode", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PASS2, INT_MIN, INT_MAX, 0, "flags"},
422{"extern_huff", "use external huffman table (for mjpeg)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_EXTERN_HUFF, INT_MIN, INT_MAX, 0, "flags"},
423{"gray", "only decode/encode grayscale", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_GRAY, INT_MIN, INT_MAX, V|E|D, "flags"},
424{"emu_edge", "don't draw edges", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_EMU_EDGE, INT_MIN, INT_MAX, 0, "flags"},
425{"psnr", "error[?] variables will be set during encoding", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PSNR, INT_MIN, INT_MAX, V|E, "flags"},
426{"truncated", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG_TRUNCATED, INT_MIN, INT_MAX, 0, "flags"},
427{"naq", "normalize adaptive quantization", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_NORMALIZE_AQP, INT_MIN, INT_MAX, V|E, "flags"},
428{"ildct", "use interlaced dct", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_INTERLACED_DCT, INT_MIN, INT_MAX, V|E, "flags"},
9cc6be9d 429{"low_delay", "force low delay", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_LOW_DELAY, INT_MIN, INT_MAX, V|D|E, "flags"},
fac862c6 430{"alt", "enable alternate scantable (mpeg2/mpeg4)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_ALT_SCAN, INT_MIN, INT_MAX, V|E, "flags"},
8983aa33 431{"global_header", "place global headers in extradata instead of every keyframe", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_GLOBAL_HEADER, INT_MIN, INT_MAX, V|A|E, "flags"},
fac862c6
MN
432{"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"},
433{"aic", "h263 advanced intra coding / mpeg4 ac prediction", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_AC_PRED, INT_MIN, INT_MAX, V|E, "flags"},
434{"umv", "use unlimited motion vectors", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_H263P_UMV, INT_MIN, INT_MAX, V|E, "flags"},
435{"cbp", "use rate distortion optimization for cbp", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_CBP_RD, INT_MIN, INT_MAX, V|E, "flags"},
8f196b14 436{"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
437{"aiv", "h263 alternative inter vlc", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_H263P_AIV, INT_MIN, INT_MAX, V|E, "flags"},
438{"slice", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG_H263P_SLICE_STRUCT, INT_MIN, INT_MAX, V|E, "flags"},
439{"ilme", "interlaced motion estimation", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_INTERLACED_ME, INT_MIN, INT_MAX, V|E, "flags"},
440{"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 441{"cgop", "closed gop", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_CLOSED_GOP, INT_MIN, INT_MAX, V|E, "flags"},
fac862c6
MN
442{"fast", "allow non spec compliant speedup tricks", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_FAST, INT_MIN, INT_MAX, V|E, "flags2"},
443{"sgop", "strictly enforce gop size", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_STRICT_GOP, INT_MIN, INT_MAX, V|E, "flags2"},
444{"noout", "skip bitstream encoding", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_NO_OUTPUT, INT_MIN, INT_MAX, V|E, "flags2"},
445{"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 446{"sub_id", NULL, OFFSET(sub_id), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
5cc9b87f 447{"me_method", "set motion estimation method", OFFSET(me_method), FF_OPT_TYPE_INT, ME_EPZS, INT_MIN, INT_MAX, V|E, "me_method"},
c0de00da
SS
448{"zero", "zero motion estimation (fastest)", 0, FF_OPT_TYPE_CONST, ME_ZERO, INT_MIN, INT_MAX, V|E, "me_method" },
449{"full", "full motion estimation (slowest)", 0, FF_OPT_TYPE_CONST, ME_FULL, INT_MIN, INT_MAX, V|E, "me_method" },
450{"epzs", "EPZS motion estimation (default)", 0, FF_OPT_TYPE_CONST, ME_EPZS, INT_MIN, INT_MAX, V|E, "me_method" },
89223ef6
BC
451{"esa", "esa motion estimation (alias for full)", 0, FF_OPT_TYPE_CONST, ME_FULL, INT_MIN, INT_MAX, V|E, "me_method" },
452{"tesa", "tesa motion estimation", 0, FF_OPT_TYPE_CONST, ME_TESA, INT_MIN, INT_MAX, V|E, "me_method" },
453{"dia", "dia motion estimation (alias for epzs)", 0, FF_OPT_TYPE_CONST, ME_EPZS, INT_MIN, INT_MAX, V|E, "me_method" },
c0de00da
SS
454{"log", "log motion estimation", 0, FF_OPT_TYPE_CONST, ME_LOG, INT_MIN, INT_MAX, V|E, "me_method" },
455{"phods", "phods motion estimation", 0, FF_OPT_TYPE_CONST, ME_PHODS, INT_MIN, INT_MAX, V|E, "me_method" },
456{"x1", "X1 motion estimation", 0, FF_OPT_TYPE_CONST, ME_X1, INT_MIN, INT_MAX, V|E, "me_method" },
457{"hex", "hex motion estimation", 0, FF_OPT_TYPE_CONST, ME_HEX, INT_MIN, INT_MAX, V|E, "me_method" },
458{"umh", "umh motion estimation", 0, FF_OPT_TYPE_CONST, ME_UMH, INT_MIN, INT_MAX, V|E, "me_method" },
459{"iter", "iter motion estimation", 0, FF_OPT_TYPE_CONST, ME_ITER, INT_MIN, INT_MAX, V|E, "me_method" },
860a40c8
MN
460{"extradata_size", NULL, OFFSET(extradata_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
461{"time_base", NULL, OFFSET(time_base), FF_OPT_TYPE_RATIONAL, DEFAULT, INT_MIN, INT_MAX},
7df00a4e 462{"g", "set the group of picture size", OFFSET(gop_size), FF_OPT_TYPE_INT, 12, INT_MIN, INT_MAX, V|E},
119aae1d 463{"rate_emu", "frame rate emulation", OFFSET(rate_emu), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
7df00a4e 464{"ar", "set audio sampling rate (in Hz)", OFFSET(sample_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
462209fe 465{"ac", "set number of audio channels", OFFSET(channels), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
14f0c8e2 466{"cutoff", "set cutoff bandwidth", OFFSET(cutoff), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, A|E},
c6375bf2 467{"frame_size", NULL, OFFSET(frame_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, A|E},
860a40c8
MN
468{"frame_number", NULL, OFFSET(frame_number), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
469{"real_pict_num", NULL, OFFSET(real_pict_num), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
470{"delay", NULL, OFFSET(delay), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
7c5ea40c
MN
471{"qcomp", "video quantizer scale compression (VBR)", OFFSET(qcompress), FF_OPT_TYPE_FLOAT, 0.5, -FLT_MAX, FLT_MAX, V|E},
472{"qblur", "video quantizer scale blur (VBR)", OFFSET(qblur), FF_OPT_TYPE_FLOAT, 0.5, 0, FLT_MAX, V|E},
4bef236b
DB
473{"qmin", "min video quantizer scale (VBR)", OFFSET(qmin), FF_OPT_TYPE_INT, 2, 1, 51, V|E},
474{"qmax", "max video quantizer scale (VBR)", OFFSET(qmax), FF_OPT_TYPE_INT, 31, 1, 51, V|E},
475{"qdiff", "max difference between the quantizer scale (VBR)", OFFSET(max_qdiff), FF_OPT_TYPE_INT, 3, INT_MIN, INT_MAX, V|E},
315b0f97 476{"bf", "use 'frames' B frames", OFFSET(max_b_frames), FF_OPT_TYPE_INT, DEFAULT, 0, FF_MAX_B_FRAMES, V|E},
7c5ea40c 477{"b_qfactor", "qp factor between p and b frames", OFFSET(b_quant_factor), FF_OPT_TYPE_FLOAT, 1.25, -FLT_MAX, FLT_MAX, V|E},
97041923
VP
478{"rc_strategy", "ratecontrol method", OFFSET(rc_strategy), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
479{"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 480{"hurry_up", NULL, OFFSET(hurry_up), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D},
ea0fe83b 481{"ps", "rtp payload size in bits", OFFSET(rtp_payload_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
860a40c8
MN
482{"mv_bits", NULL, OFFSET(mv_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
483{"header_bits", NULL, OFFSET(header_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
484{"i_tex_bits", NULL, OFFSET(i_tex_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
485{"p_tex_bits", NULL, OFFSET(p_tex_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
486{"i_count", NULL, OFFSET(i_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
487{"p_count", NULL, OFFSET(p_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
488{"skip_count", NULL, OFFSET(skip_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
489{"misc_bits", NULL, OFFSET(misc_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
490{"frame_bits", NULL, OFFSET(frame_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
491{"codec_tag", NULL, OFFSET(codec_tag), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
7df00a4e 492{"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 493{"autodetect", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_AUTODETECT, INT_MIN, INT_MAX, V|D, "bug"},
97041923
VP
494{"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"},
495{"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"},
496{"ump4", "(autodetected if fourcc==UMP4)", 0, FF_OPT_TYPE_CONST, FF_BUG_UMP4, INT_MIN, INT_MAX, V|D, "bug"},
497{"no_padding", "padding bug (autodetected)", 0, FF_OPT_TYPE_CONST, FF_BUG_NO_PADDING, INT_MIN, INT_MAX, V|D, "bug"},
fac862c6 498{"amv", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_AMV, INT_MIN, INT_MAX, V|D, "bug"},
97041923 499{"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 500{"qpel_chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_QPEL_CHROMA, INT_MIN, INT_MAX, V|D, "bug"},
97041923 501{"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 502{"qpel_chroma2", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_QPEL_CHROMA2, INT_MIN, INT_MAX, V|D, "bug"},
97041923
VP
503{"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"},
504{"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
505{"hpel_chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_HPEL_CHROMA, INT_MIN, INT_MAX, V|D, "bug"},
506{"dc_clip", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_DC_CLIP, INT_MIN, INT_MAX, V|D, "bug"},
119aae1d 507{"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
508{"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},
509{"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},
5771b2c3
MN
510{"strict", "how strictly to follow the standards", OFFSET(strict_std_compliance), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, A|V|D|E, "strict"},
511{"very", "strictly conform to a older more strict version of the spec or reference software", 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_VERY_STRICT, INT_MIN, INT_MAX, V|D|E, "strict"},
512{"strict", "strictly conform to all the things in the spec no matter what consequences", 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_STRICT, INT_MIN, INT_MAX, V|D|E, "strict"},
513{"normal", NULL, 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_NORMAL, INT_MIN, INT_MAX, V|D|E, "strict"},
514{"inofficial", "allow inofficial extensions", 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_INOFFICIAL, INT_MIN, INT_MAX, V|D|E, "strict"},
515{"experimental", "allow non standardized experimental things", 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_EXPERIMENTAL, INT_MIN, INT_MAX, V|D|E, "strict"},
7c5ea40c 516{"b_qoffset", "qp offset between P and B frames", OFFSET(b_quant_offset), FF_OPT_TYPE_FLOAT, 1.25, -FLT_MAX, FLT_MAX, V|E},
047599a4 517{"er", "set error detection aggressivity", OFFSET(error_recognition), FF_OPT_TYPE_INT, FF_ER_CAREFUL, INT_MIN, INT_MAX, A|V|D, "er"},
fac862c6
MN
518{"careful", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_CAREFUL, INT_MIN, INT_MAX, V|D, "er"},
519{"compliant", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_COMPLIANT, INT_MIN, INT_MAX, V|D, "er"},
520{"aggressive", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_AGGRESSIVE, INT_MIN, INT_MAX, V|D, "er"},
521{"very_aggressive", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_VERY_AGGRESSIVE, INT_MIN, INT_MAX, V|D, "er"},
860a40c8
MN
522{"has_b_frames", NULL, OFFSET(has_b_frames), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
523{"block_align", NULL, OFFSET(block_align), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
524{"parse_only", NULL, OFFSET(parse_only), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
97041923 525{"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
526{"stats_out", NULL, OFFSET(stats_out), FF_OPT_TYPE_STRING, DEFAULT, CHAR_MIN, CHAR_MAX},
527{"stats_in", NULL, OFFSET(stats_in), FF_OPT_TYPE_STRING, DEFAULT, CHAR_MIN, CHAR_MAX},
4bef236b 528{"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
529{"rc_qmod_amp", "experimental quantizer modulation", OFFSET(rc_qmod_amp), FF_OPT_TYPE_FLOAT, DEFAULT, -FLT_MAX, FLT_MAX, V|E},
530{"rc_qmod_freq", "experimental quantizer modulation", OFFSET(rc_qmod_freq), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
860a40c8 531{"rc_override_count", NULL, OFFSET(rc_override_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
5cc9b87f 532{"rc_eq", "set rate control equation", OFFSET(rc_eq), FF_OPT_TYPE_STRING, DEFAULT, CHAR_MIN, CHAR_MAX, V|E},
7df00a4e
PI
533{"maxrate", "set max video bitrate tolerance (in bits/s)", OFFSET(rc_max_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
534{"minrate", "set min video bitrate tolerance (in bits/s)", OFFSET(rc_min_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
3d86e370 535{"bufsize", "set ratecontrol buffer size (in bits)", OFFSET(rc_buffer_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, A|V|E},
7c5ea40c 536{"rc_buf_aggressivity", "currently useless", OFFSET(rc_buffer_aggressivity), FF_OPT_TYPE_FLOAT, 1.0, -FLT_MAX, FLT_MAX, V|E},
2cab6401
DB
537{"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},
538{"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},
076ce017 539{"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
540{"dct", "DCT algorithm", OFFSET(dct_algo), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, V|E, "dct"},
541{"auto", "autoselect a good one (default)", 0, FF_OPT_TYPE_CONST, FF_DCT_AUTO, INT_MIN, INT_MAX, V|E, "dct"},
542{"fastint", "fast integer", 0, FF_OPT_TYPE_CONST, FF_DCT_FASTINT, INT_MIN, INT_MAX, V|E, "dct"},
543{"int", "accurate integer", 0, FF_OPT_TYPE_CONST, FF_DCT_INT, INT_MIN, INT_MAX, V|E, "dct"},
fac862c6
MN
544{"mmx", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_MMX, INT_MIN, INT_MAX, V|E, "dct"},
545{"mlib", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_MLIB, INT_MIN, INT_MAX, V|E, "dct"},
546{"altivec", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_ALTIVEC, INT_MIN, INT_MAX, V|E, "dct"},
4a1bb619 547{"faan", "floating point AAN DCT", 0, FF_OPT_TYPE_CONST, FF_DCT_FAAN, INT_MIN, INT_MAX, V|E, "dct"},
97041923 548{"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
549{"tcplx_mask", "temporal complexity masking", OFFSET(temporal_cplx_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
550{"scplx_mask", "spatial complexity masking", OFFSET(spatial_cplx_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
551{"p_mask", "inter masking", OFFSET(p_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
97041923 552{"dark_mask", "compresses dark areas stronger than medium ones", OFFSET(dark_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
895bf499 553{"idct", "select IDCT implementation", OFFSET(idct_algo), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, V|E|D, "idct"},
fac862c6
MN
554{"auto", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_AUTO, INT_MIN, INT_MAX, V|E|D, "idct"},
555{"int", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_INT, INT_MIN, INT_MAX, V|E|D, "idct"},
556{"simple", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLE, INT_MIN, INT_MAX, V|E|D, "idct"},
557{"simplemmx", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEMMX, INT_MIN, INT_MAX, V|E|D, "idct"},
558{"libmpeg2mmx", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_LIBMPEG2MMX, INT_MIN, INT_MAX, V|E|D, "idct"},
559{"ps2", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_PS2, INT_MIN, INT_MAX, V|E|D, "idct"},
560{"mlib", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_MLIB, INT_MIN, INT_MAX, V|E|D, "idct"},
561{"arm", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_ARM, INT_MIN, INT_MAX, V|E|D, "idct"},
562{"altivec", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_ALTIVEC, INT_MIN, INT_MAX, V|E|D, "idct"},
563{"sh4", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SH4, INT_MIN, INT_MAX, V|E|D, "idct"},
564{"simplearm", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEARM, INT_MIN, INT_MAX, V|E|D, "idct"},
a0403006 565{"simplearmv5te", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEARMV5TE, INT_MIN, INT_MAX, V|E|D, "idct"},
a6ce3d3d 566{"simplearmv6", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEARMV6, INT_MIN, INT_MAX, V|E|D, "idct"},
7eec4328 567{"simpleneon", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLENEON, INT_MIN, INT_MAX, V|E|D, "idct"},
fac862c6
MN
568{"h264", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_H264, INT_MIN, INT_MAX, V|E|D, "idct"},
569{"vp3", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_VP3, INT_MIN, INT_MAX, V|E|D, "idct"},
570{"ipp", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_IPP, INT_MIN, INT_MAX, V|E|D, "idct"},
571{"xvidmmx", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_XVIDMMX, INT_MIN, INT_MAX, V|E|D, "idct"},
6f08c541 572{"faani", "floating point AAN IDCT", 0, FF_OPT_TYPE_CONST, FF_IDCT_FAAN, INT_MIN, INT_MAX, V|D|E, "idct"},
860a40c8 573{"slice_count", NULL, OFFSET(slice_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
97041923
VP
574{"ec", "set error concealment strategy", OFFSET(error_concealment), FF_OPT_TYPE_FLAGS, 3, INT_MIN, INT_MAX, V|D, "ec"},
575{"guess_mvs", "iterative motion vector (MV) search (slow)", 0, FF_OPT_TYPE_CONST, FF_EC_GUESS_MVS, INT_MIN, INT_MAX, V|D, "ec"},
576{"deblock", "use strong deblock filter for damaged MBs", 0, FF_OPT_TYPE_CONST, FF_EC_DEBLOCK, INT_MIN, INT_MAX, V|D, "ec"},
46a73068 577{"bits_per_coded_sample", NULL, OFFSET(bits_per_coded_sample), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
8f196b14 578{"pred", "prediction method", OFFSET(prediction_method), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "pred"},
fac862c6
MN
579{"left", NULL, 0, FF_OPT_TYPE_CONST, FF_PRED_LEFT, INT_MIN, INT_MAX, V|E, "pred"},
580{"plane", NULL, 0, FF_OPT_TYPE_CONST, FF_PRED_PLANE, INT_MIN, INT_MAX, V|E, "pred"},
581{"median", NULL, 0, FF_OPT_TYPE_CONST, FF_PRED_MEDIAN, INT_MIN, INT_MAX, V|E, "pred"},
119aae1d 582{"aspect", "sample aspect ratio", OFFSET(sample_aspect_ratio), FF_OPT_TYPE_RATIONAL, DEFAULT, 0, 10, V|E},
637b5326 583{"debug", "print specific debug info", OFFSET(debug), FF_OPT_TYPE_FLAGS, DEFAULT, 0, INT_MAX, V|A|S|E|D, "debug"},
97041923
VP
584{"pict", "picture info", 0, FF_OPT_TYPE_CONST, FF_DEBUG_PICT_INFO, INT_MIN, INT_MAX, V|D, "debug"},
585{"rc", "rate control", 0, FF_OPT_TYPE_CONST, FF_DEBUG_RC, INT_MIN, INT_MAX, V|E, "debug"},
fac862c6 586{"bitstream", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_BITSTREAM, INT_MIN, INT_MAX, V|D, "debug"},
97041923
VP
587{"mb_type", "macroblock (MB) type", 0, FF_OPT_TYPE_CONST, FF_DEBUG_MB_TYPE, INT_MIN, INT_MAX, V|D, "debug"},
588{"qp", "per-block quantization parameter (QP)", 0, FF_OPT_TYPE_CONST, FF_DEBUG_QP, INT_MIN, INT_MAX, V|D, "debug"},
589{"mv", "motion vector", 0, FF_OPT_TYPE_CONST, FF_DEBUG_MV, INT_MIN, INT_MAX, V|D, "debug"},
fac862c6
MN
590{"dct_coeff", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_DCT_COEFF, INT_MIN, INT_MAX, V|D, "debug"},
591{"skip", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_SKIP, INT_MIN, INT_MAX, V|D, "debug"},
592{"startcode", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_STARTCODE, INT_MIN, INT_MAX, V|D, "debug"},
593{"pts", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_PTS, INT_MIN, INT_MAX, V|D, "debug"},
047599a4 594{"er", "error recognition", 0, FF_OPT_TYPE_CONST, FF_DEBUG_ER, INT_MIN, INT_MAX, V|D, "debug"},
97041923 595{"mmco", "memory management control operations (H.264)", 0, FF_OPT_TYPE_CONST, FF_DEBUG_MMCO, INT_MIN, INT_MAX, V|D, "debug"},
fac862c6 596{"bugs", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_BUGS, INT_MIN, INT_MAX, V|D, "debug"},
97041923
VP
597{"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"},
598{"vis_mb_type", "visualize block types", 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_MB_TYPE, INT_MIN, INT_MAX, V|D, "debug"},
385c820b 599{"buffers", "picture buffer allocations", 0, FF_OPT_TYPE_CONST, FF_DEBUG_BUFFERS, INT_MIN, INT_MAX, V|D, "debug"},
97041923
VP
600{"vismv", "visualize motion vectors (MVs)", OFFSET(debug_mv), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, V|D, "debug_mv"},
601{"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"},
602{"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"},
603{"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
604{"mb_qmin", "obsolete, use qmin", OFFSET(mb_qmin), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
605{"mb_qmax", "obsolete, use qmax", OFFSET(mb_qmax), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
fac862c6
MN
606{"cmp", "full pel me compare function", OFFSET(me_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
607{"subcmp", "sub pel me compare function", OFFSET(me_sub_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
ec9127c4 608{"mbcmp", "macroblock compare function", OFFSET(mb_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
8c3dd5dc 609{"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
610{"dia_size", "diamond type & size for motion estimation", OFFSET(dia_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
611{"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 612{"preme", "pre motion estimation", OFFSET(pre_me), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
ec9127c4 613{"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
614{"sad", "sum of absolute differences, fast (default)", 0, FF_OPT_TYPE_CONST, FF_CMP_SAD, INT_MIN, INT_MAX, V|E, "cmp_func"},
615{"sse", "sum of squared errors", 0, FF_OPT_TYPE_CONST, FF_CMP_SSE, INT_MIN, INT_MAX, V|E, "cmp_func"},
616{"satd", "sum of absolute Hadamard transformed differences", 0, FF_OPT_TYPE_CONST, FF_CMP_SATD, INT_MIN, INT_MAX, V|E, "cmp_func"},
617{"dct", "sum of absolute DCT transformed differences", 0, FF_OPT_TYPE_CONST, FF_CMP_DCT, INT_MIN, INT_MAX, V|E, "cmp_func"},
618{"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"},
619{"bit", "number of bits needed for the block", 0, FF_OPT_TYPE_CONST, FF_CMP_BIT, INT_MIN, INT_MAX, V|E, "cmp_func"},
620{"rd", "rate distortion optimal, slow", 0, FF_OPT_TYPE_CONST, FF_CMP_RD, INT_MIN, INT_MAX, V|E, "cmp_func"},
621{"zero", "0", 0, FF_OPT_TYPE_CONST, FF_CMP_ZERO, INT_MIN, INT_MAX, V|E, "cmp_func"},
622{"vsad", "sum of absolute vertical differences", 0, FF_OPT_TYPE_CONST, FF_CMP_VSAD, INT_MIN, INT_MAX, V|E, "cmp_func"},
623{"vsse","sum of squared vertical differences", 0, FF_OPT_TYPE_CONST, FF_CMP_VSSE, INT_MIN, INT_MAX, V|E, "cmp_func"},
624{"nsse", "noise preserving sum of squared differences", 0, FF_OPT_TYPE_CONST, FF_CMP_NSSE, INT_MIN, INT_MAX, V|E, "cmp_func"},
3a6fc8fa 625#ifdef CONFIG_SNOW_ENCODER
97041923
VP
626{"w53", "5/3 wavelet, only used in snow", 0, FF_OPT_TYPE_CONST, FF_CMP_W53, INT_MIN, INT_MAX, V|E, "cmp_func"},
627{"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 628#endif
fac862c6
MN
629{"dctmax", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_DCTMAX, INT_MIN, INT_MAX, V|E, "cmp_func"},
630{"chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_CHROMA, INT_MIN, INT_MAX, V|E, "cmp_func"},
97041923 631{"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 632{"subq", "sub pel motion estimation quality", OFFSET(me_subpel_quality), FF_OPT_TYPE_INT, 8, INT_MIN, INT_MAX, V|E},
860a40c8 633{"dtg_active_format", NULL, OFFSET(dtg_active_format), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
5cc9b87f
PI
634{"me_range", "limit motion vectors range (1023 for DivX player)", OFFSET(me_range), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
635{"ibias", "intra quant bias", OFFSET(intra_quant_bias), FF_OPT_TYPE_INT, FF_DEFAULT_QUANT_BIAS, INT_MIN, INT_MAX, V|E},
636{"pbias", "inter quant bias", OFFSET(inter_quant_bias), FF_OPT_TYPE_INT, FF_DEFAULT_QUANT_BIAS, INT_MIN, INT_MAX, V|E},
860a40c8
MN
637{"color_table_id", NULL, OFFSET(color_table_id), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
638{"internal_buffer_count", NULL, OFFSET(internal_buffer_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
639{"global_quality", NULL, OFFSET(global_quality), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
ec9127c4 640{"coder", NULL, OFFSET(coder_type), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "coder"},
8f196b14
MN
641{"vlc", "variable length coder / huffman coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_VLC, INT_MIN, INT_MAX, V|E, "coder"},
642{"ac", "arithmetic coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_AC, INT_MIN, INT_MAX, V|E, "coder"},
f87459e4 643{"raw", "raw (no encoding)", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_RAW, INT_MIN, INT_MAX, V|E, "coder"},
5d79e24a 644{"rle", "run-length coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_RLE, INT_MIN, INT_MAX, V|E, "coder"},
f87459e4 645{"deflate", "deflate-based coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_DEFLATE, INT_MIN, INT_MAX, V|E, "coder"},
8f196b14 646{"context", "context model", OFFSET(context_model), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
860a40c8
MN
647{"slice_flags", NULL, OFFSET(slice_flags), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
648{"xvmc_acceleration", NULL, OFFSET(xvmc_acceleration), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
815d96a6 649{"mbd", "macroblock decision algorithm (high quality mode)", OFFSET(mb_decision), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "mbd"},
97041923
VP
650{"simple", "use mbcmp (default)", 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_SIMPLE, INT_MIN, INT_MAX, V|E, "mbd"},
651{"bits", "use fewest bits", 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_BITS, INT_MIN, INT_MAX, V|E, "mbd"},
652{"rd", "use best rate distortion", 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_RD, INT_MIN, INT_MAX, V|E, "mbd"},
860a40c8 653{"stream_codec_tag", NULL, OFFSET(stream_codec_tag), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
5cc9b87f
PI
654{"sc_threshold", "scene change threshold", OFFSET(scenechange_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
655{"lmin", "min lagrange factor (VBR)", OFFSET(lmin), FF_OPT_TYPE_INT, 2*FF_QP2LAMBDA, 0, INT_MAX, V|E},
656{"lmax", "max lagrange factor (VBR)", OFFSET(lmax), FF_OPT_TYPE_INT, 31*FF_QP2LAMBDA, 0, INT_MAX, V|E},
8f196b14 657{"nr", "noise reduction", OFFSET(noise_reduction), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
119aae1d 658{"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 659{"inter_threshold", NULL, OFFSET(inter_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
f3eec1cf 660{"flags2", NULL, OFFSET(flags2), FF_OPT_TYPE_FLAGS, CODEC_FLAG2_FASTPSKIP|CODEC_FLAG2_BIT_RESERVOIR, 0, UINT_MAX, V|A|E|D, "flags2"},
22565f5d 661{"error", NULL, OFFSET(error_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
119aae1d 662{"antialias", "MP3 antialias algorithm", OFFSET(antialias_algo), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D, "aa"},
fac862c6
MN
663{"auto", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_AUTO, INT_MIN, INT_MAX, V|D, "aa"},
664{"fastint", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_FASTINT, INT_MIN, INT_MAX, V|D, "aa"},
665{"int", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_INT, INT_MIN, INT_MAX, V|D, "aa"},
666{"float", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_FLOAT, INT_MIN, INT_MAX, V|D, "aa"},
8f196b14 667{"qns", "quantizer noise shaping", OFFSET(quantizer_noise_shaping), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
7df00a4e 668{"threads", NULL, OFFSET(thread_count), FF_OPT_TYPE_INT, 1, INT_MIN, INT_MAX, V|E|D},
637b5326 669{"me_threshold", "motion estimaton threshold", OFFSET(me_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
bf080813 670{"mb_threshold", "macroblock threshold", OFFSET(mb_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
327409d7 671{"dc", "intra_dc_precision", OFFSET(intra_dc_precision), FF_OPT_TYPE_INT, 0, INT_MIN, INT_MAX, V|E},
8f196b14 672{"nssew", "nsse weight", OFFSET(nsse_weight), FF_OPT_TYPE_INT, 8, INT_MIN, INT_MAX, V|E},
119aae1d
PI
673{"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},
674{"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 675{"profile", NULL, OFFSET(profile), FF_OPT_TYPE_INT, FF_PROFILE_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "profile"},
fac862c6 676{"unknown", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "profile"},
4f2c36ac
NG
677{"aac_main", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_AAC_MAIN, INT_MIN, INT_MAX, A|E, "profile"},
678{"aac_low", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_AAC_LOW, INT_MIN, INT_MAX, A|E, "profile"},
679{"aac_ssr", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_AAC_SSR, INT_MIN, INT_MAX, A|E, "profile"},
680{"aac_ltp", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_AAC_LTP, INT_MIN, INT_MAX, A|E, "profile"},
ec9127c4 681{"level", NULL, OFFSET(level), FF_OPT_TYPE_INT, FF_LEVEL_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "level"},
fac862c6 682{"unknown", NULL, 0, FF_OPT_TYPE_CONST, FF_LEVEL_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "level"},
97041923 683{"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
684{"skip_threshold", "frame skip threshold", OFFSET(frame_skip_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
685{"skip_factor", "frame skip factor", OFFSET(frame_skip_factor), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
686{"skip_exp", "frame skip exponent", OFFSET(frame_skip_exp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
d4de20d1 687{"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 688{"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
689{"mblmin", "min macroblock lagrange factor (VBR)", OFFSET(mb_lmin), FF_OPT_TYPE_INT, FF_QP2LAMBDA * 2, 1, FF_LAMBDA_MAX, V|E},
690{"mblmax", "max macroblock lagrange factor (VBR)", OFFSET(mb_lmax), FF_OPT_TYPE_INT, FF_QP2LAMBDA * 31, 1, FF_LAMBDA_MAX, V|E},
cccb4c96 691{"mepc", "motion estimation bitrate penalty compensation (1.0 = 256)", OFFSET(me_penalty_compensation), FF_OPT_TYPE_INT, 256, INT_MIN, INT_MAX, V|E},
7c7cf452
MN
692{"skip_loop_filter", NULL, OFFSET(skip_loop_filter), FF_OPT_TYPE_INT, AVDISCARD_DEFAULT, INT_MIN, INT_MAX, V|D, "avdiscard"},
693{"skip_idct" , NULL, OFFSET(skip_idct) , FF_OPT_TYPE_INT, AVDISCARD_DEFAULT, INT_MIN, INT_MAX, V|D, "avdiscard"},
694{"skip_frame" , NULL, OFFSET(skip_frame) , FF_OPT_TYPE_INT, AVDISCARD_DEFAULT, INT_MIN, INT_MAX, V|D, "avdiscard"},
695{"none" , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_NONE , INT_MIN, INT_MAX, V|D, "avdiscard"},
696{"default" , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_DEFAULT, INT_MIN, INT_MAX, V|D, "avdiscard"},
697{"noref" , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_NONREF , INT_MIN, INT_MAX, V|D, "avdiscard"},
698{"bidir" , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_BIDIR , INT_MIN, INT_MAX, V|D, "avdiscard"},
699{"nokey" , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_NONKEY , INT_MIN, INT_MAX, V|D, "avdiscard"},
700{"all" , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_ALL , INT_MIN, INT_MAX, V|D, "avdiscard"},
97041923
VP
701{"bidir_refine", "refine the two motion vectors used in bidirectional macroblocks", OFFSET(bidir_refine), FF_OPT_TYPE_INT, DEFAULT, 0, 4, V|E},
702{"brd_scale", "downscales frames for dynamic B-frame decision", OFFSET(brd_scale), FF_OPT_TYPE_INT, DEFAULT, 0, 10, V|E},
703{"crf", "enables constant quality mode, and selects the quality (x264)", OFFSET(crf), FF_OPT_TYPE_FLOAT, DEFAULT, 0, 51, V|E},
119aae1d 704{"cqp", "constant quantization parameter rate control method", OFFSET(cqp), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, V|E},
97041923
VP
705{"keyint_min", "minimum interval between IDR-frames (x264)", OFFSET(keyint_min), FF_OPT_TYPE_INT, 25, INT_MIN, INT_MAX, V|E},
706{"refs", "reference frames to consider for motion compensation (Snow)", OFFSET(refs), FF_OPT_TYPE_INT, 1, INT_MIN, INT_MAX, V|E},
119aae1d
PI
707{"chromaoffset", "chroma qp offset from luma", OFFSET(chromaoffset), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
708{"bframebias", "influences how often B-frames are used", OFFSET(bframebias), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
97041923 709{"trellis", "rate-distortion optimal quantization", OFFSET(trellis), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|A|E},
30ab4ded 710{"directpred", "direct mv prediction mode - 0 (none), 1 (spatial), 2 (temporal), 3 (auto)", OFFSET(directpred), FF_OPT_TYPE_INT, 2, INT_MIN, INT_MAX, V|E},
97041923 711{"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 712{"wpred", "weighted biprediction for b-frames (H.264)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_WPRED, INT_MIN, INT_MAX, V|E, "flags2"},
d3075ed5 713{"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"},
e2f3d947 714{"dct8x8", "high profile 8x8 transform (H.264)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_8X8DCT, INT_MIN, INT_MAX, V|E, "flags2"},
119aae1d
PI
715{"fastpskip", "fast pskip (H.264)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_FASTPSKIP, INT_MIN, INT_MAX, V|E, "flags2"},
716{"aud", "access unit delimiters (H.264)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_AUD, INT_MIN, INT_MAX, V|E, "flags2"},
fe037229 717{"skiprd", "RD optimal MB level residual skipping", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_SKIP_RD, INT_MIN, INT_MAX, V|E, "flags2"},
119aae1d
PI
718{"complexityblur", "reduce fluctuations in qp (before curve compression)", OFFSET(complexityblur), FF_OPT_TYPE_FLOAT, 20.0, FLT_MIN, FLT_MAX, V|E},
719{"deblockalpha", "in-loop deblocking filter alphac0 parameter", OFFSET(deblockalpha), FF_OPT_TYPE_INT, DEFAULT, -6, 6, V|E},
720{"deblockbeta", "in-loop deblocking filter beta parameter", OFFSET(deblockbeta), FF_OPT_TYPE_INT, DEFAULT, -6, 6, V|E},
721{"partitions", "macroblock subpartition sizes to consider", OFFSET(partitions), FF_OPT_TYPE_FLAGS, DEFAULT, INT_MIN, INT_MAX, V|E, "partitions"},
58f7833e
RS
722{"parti4x4", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_I4X4, INT_MIN, INT_MAX, V|E, "partitions"},
723{"parti8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_I8X8, INT_MIN, INT_MAX, V|E, "partitions"},
724{"partp4x4", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_P4X4, INT_MIN, INT_MAX, V|E, "partitions"},
725{"partp8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_P8X8, INT_MIN, INT_MAX, V|E, "partitions"},
726{"partb8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_B8X8, INT_MIN, INT_MAX, V|E, "partitions"},
119aae1d 727{"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 728{"mv0_threshold", NULL, OFFSET(mv0_threshold), FF_OPT_TYPE_INT, 256, 0, INT_MAX, V|E},
307eb248 729{"ivlc", "intra vlc table", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_INTRA_VLC, INT_MIN, INT_MAX, V|E, "flags2"},
119aae1d 730{"b_sensitivity", "adjusts sensitivity of b_frame_strategy 1", OFFSET(b_sensitivity), FF_OPT_TYPE_INT, 40, 1, INT_MAX, V|E},
a403fc03 731{"compression_level", NULL, OFFSET(compression_level), FF_OPT_TYPE_INT, FF_COMPRESSION_DEFAULT, INT_MIN, INT_MAX, V|A|E},
119aae1d
PI
732{"use_lpc", "sets whether to use LPC mode (FLAC)", OFFSET(use_lpc), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
733{"lpc_coeff_precision", "LPC coefficient precision (FLAC)", OFFSET(lpc_coeff_precision), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, A|E},
a403fc03
JR
734{"min_prediction_order", NULL, OFFSET(min_prediction_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
735{"max_prediction_order", NULL, OFFSET(max_prediction_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
119aae1d 736{"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
737{"min_partition_order", NULL, OFFSET(min_partition_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
738{"max_partition_order", NULL, OFFSET(max_partition_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
119aae1d 739{"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 740{"drop_frame_timecode", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_DROP_FRAME_TIMECODE, INT_MIN, INT_MAX, V|E, "flags2"},
5a6b9443 741{"non_linear_q", "use non linear quantizer", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_NON_LINEAR_QUANT, INT_MIN, INT_MAX, V|E, "flags2"},
b1ec601f 742{"request_channels", "set desired number of audio channels", OFFSET(request_channels), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, A|D},
1408352a 743{"drc_scale", "percentage of dynamic range compression to apply", OFFSET(drc_scale), FF_OPT_TYPE_FLOAT, 1.0, 0.0, 1.0, A|D},
f1618fd9 744{"reservoir", "use bit reservoir", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_BIT_RESERVOIR, INT_MIN, INT_MAX, A|E, "flags2"},
312420f3 745{"bits_per_raw_sample", NULL, OFFSET(bits_per_raw_sample), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
0d72e7d0
PR
746{"channel_layout", NULL, OFFSET(channel_layout), FF_OPT_TYPE_INT64, DEFAULT, 0, INT64_MAX, A|E|D, "channel_layout"},
747{"request_channel_layout", NULL, OFFSET(request_channel_layout), FF_OPT_TYPE_INT64, DEFAULT, 0, INT64_MAX, A|D, "request_channel_layout"},
3bff4d8b
BC
748{"rc_max_vbv_use", NULL, OFFSET(rc_max_available_vbv_use), FF_OPT_TYPE_FLOAT, 1.0/3, 0.0, FLT_MAX, V|E},
749{"rc_min_vbv_use", NULL, OFFSET(rc_min_vbv_overflow_use), FF_OPT_TYPE_FLOAT, 3, 0.0, FLT_MAX, V|E},
860a40c8
MN
750{NULL},
751};
752
8bbf6db9
MN
753#undef A
754#undef V
5e89b50b
PI
755#undef S
756#undef E
757#undef D
758#undef DEFAULT
8bbf6db9 759
d42a814e 760static const AVClass av_codec_context_class = { "AVCodecContext", context_to_name, options };
43465395 761
29301573
MN
762void avcodec_get_context_defaults2(AVCodecContext *s, enum CodecType codec_type){
763 int flags=0;
9740beff
MN
764 memset(s, 0, sizeof(AVCodecContext));
765
43465395 766 s->av_class= &av_codec_context_class;
73a8ceaa 767
0509d453 768 s->codec_type = codec_type;
29301573
MN
769 if(codec_type == CODEC_TYPE_AUDIO)
770 flags= AV_OPT_FLAG_AUDIO_PARAM;
771 else if(codec_type == CODEC_TYPE_VIDEO)
772 flags= AV_OPT_FLAG_VIDEO_PARAM;
773 else if(codec_type == CODEC_TYPE_SUBTITLE)
774 flags= AV_OPT_FLAG_SUBTITLE_PARAM;
775 av_opt_set_defaults2(s, flags, flags);
73a8ceaa 776
c0df9d75 777 s->time_base= (AVRational){0,1};
1e491e29
MN
778 s->get_buffer= avcodec_default_get_buffer;
779 s->release_buffer= avcodec_default_release_buffer;
a33c7159 780 s->get_format= avcodec_default_get_format;
9c3d33d6 781 s->execute= avcodec_default_execute;
5ff85f1d 782 s->sample_aspect_ratio= (AVRational){0,1};
644a9262 783 s->pix_fmt= PIX_FMT_NONE;
1319a77b 784 s->sample_fmt= SAMPLE_FMT_S16; // FIXME: set to NONE
8c3dd5dc 785
2a2bbcb0 786 s->palctrl = NULL;
e1c2a5a0 787 s->reget_buffer= avcodec_default_reget_buffer;
a949d72e
MN
788}
789
29301573 790AVCodecContext *avcodec_alloc_context2(enum CodecType codec_type){
9740beff 791 AVCodecContext *avctx= av_malloc(sizeof(AVCodecContext));
115329f1 792
a949d72e 793 if(avctx==NULL) return NULL;
115329f1 794
29301573 795 avcodec_get_context_defaults2(avctx, codec_type);
115329f1 796
a949d72e
MN
797 return avctx;
798}
799
29301573
MN
800void avcodec_get_context_defaults(AVCodecContext *s){
801 avcodec_get_context_defaults2(s, CODEC_TYPE_UNKNOWN);
802}
803
804AVCodecContext *avcodec_alloc_context(void){
805 return avcodec_alloc_context2(CODEC_TYPE_UNKNOWN);
806}
807
9740beff
MN
808void avcodec_get_frame_defaults(AVFrame *pic){
809 memset(pic, 0, sizeof(AVFrame));
810
811 pic->pts= AV_NOPTS_VALUE;
c342499d 812 pic->key_frame= 1;
9740beff
MN
813}
814
492cd3a9 815AVFrame *avcodec_alloc_frame(void){
9740beff 816 AVFrame *pic= av_malloc(sizeof(AVFrame));
115329f1 817
9740beff 818 if(pic==NULL) return NULL;
115329f1 819
9740beff 820 avcodec_get_frame_defaults(pic);
115329f1 821
1e491e29
MN
822 return pic;
823}
824
5e4c7ca2 825int attribute_align_arg avcodec_open(AVCodecContext *avctx, AVCodec *codec)
de6d9b64 826{
ddebfb15 827 int ret= -1;
115329f1 828
ddebfb15
MN
829 entangled_thread_counter++;
830 if(entangled_thread_counter != 1){
831 av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
832 goto end;
833 }
de6d9b64 834
9c87b8f7 835 if(avctx->codec || !codec)
ddebfb15 836 goto end;
09770af8 837
0edf8a7a
PG
838 if (codec->priv_data_size > 0) {
839 avctx->priv_data = av_mallocz(codec->priv_data_size);
90f06cea
PI
840 if (!avctx->priv_data) {
841 ret = AVERROR(ENOMEM);
ddebfb15 842 goto end;
90f06cea 843 }
0edf8a7a
PG
844 } else {
845 avctx->priv_data = NULL;
846 }
21adafec
MN
847
848 if(avctx->coded_width && avctx->coded_height)
849 avcodec_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
850 else if(avctx->width && avctx->height)
851 avcodec_set_dimensions(avctx, avctx->width, avctx->height);
852
0ecca7a4
MN
853 if((avctx->coded_width||avctx->coded_height) && avcodec_check_dimensions(avctx,avctx->coded_width,avctx->coded_height)){
854 av_freep(&avctx->priv_data);
7868349a 855 ret = AVERROR(EINVAL);
ddebfb15 856 goto end;
0ecca7a4
MN
857 }
858
b5c85991
MN
859 avctx->codec = codec;
860 avctx->codec_id = codec->id;
861 avctx->frame_number = 0;
6e546aaa 862 if(avctx->codec->init){
2de4f9eb
MN
863 ret = avctx->codec->init(avctx);
864 if (ret < 0) {
865 av_freep(&avctx->priv_data);
866 avctx->codec= NULL;
867 goto end;
868 }
6e546aaa 869 }
ddebfb15
MN
870 ret=0;
871end:
872 entangled_thread_counter--;
873 return ret;
de6d9b64
FB
874}
875
5e4c7ca2 876int attribute_align_arg avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
de6d9b64
FB
877 const short *samples)
878{
0ecca7a4 879 if(buf_size < FF_MIN_BUFFER_SIZE && 0){
5286d11f 880 av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
0ecca7a4
MN
881 return -1;
882 }
6f824977
MN
883 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || samples){
884 int ret = avctx->codec->encode(avctx, buf, buf_size, (void *)samples);
885 avctx->frame_number++;
886 return ret;
887 }else
888 return 0;
de6d9b64
FB
889}
890
5e4c7ca2 891int attribute_align_arg avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
492cd3a9 892 const AVFrame *pict)
de6d9b64 893{
0ecca7a4 894 if(buf_size < FF_MIN_BUFFER_SIZE){
5286d11f 895 av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
0ecca7a4
MN
896 return -1;
897 }
898 if(avcodec_check_dimensions(avctx,avctx->width,avctx->height))
899 return -1;
6f824977
MN
900 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || pict){
901 int ret = avctx->codec->encode(avctx, buf, buf_size, (void *)pict);
902 avctx->frame_number++;
bb628dae 903 emms_c(); //needed to avoid an emms_c() call before every return;
115329f1 904
6f824977
MN
905 return ret;
906 }else
907 return 0;
de6d9b64
FB
908}
909
115329f1 910int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
240c1657
FB
911 const AVSubtitle *sub)
912{
913 int ret;
914 ret = avctx->codec->encode(avctx, buf, buf_size, (void *)sub);
915 avctx->frame_number++;
916 return ret;
917}
918
5e4c7ca2 919int attribute_align_arg avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
de6d9b64 920 int *got_picture_ptr,
2efa7fd1 921 const uint8_t *buf, int buf_size)
de6d9b64
FB
922{
923 int ret;
115329f1 924
53db1cae 925 *got_picture_ptr= 0;
0ecca7a4
MN
926 if((avctx->coded_width||avctx->coded_height) && avcodec_check_dimensions(avctx,avctx->coded_width,avctx->coded_height))
927 return -1;
934982c4 928 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || buf_size){
115329f1 929 ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
934982c4 930 buf, buf_size);
6bb925f4 931
bb628dae 932 emms_c(); //needed to avoid an emms_c() call before every return;
115329f1
DB
933
934 if (*got_picture_ptr)
934982c4
MN
935 avctx->frame_number++;
936 }else
937 ret= 0;
938
de6d9b64
FB
939 return ret;
940}
941
5e4c7ca2 942int attribute_align_arg avcodec_decode_audio2(AVCodecContext *avctx, int16_t *samples,
de6d9b64 943 int *frame_size_ptr,
2efa7fd1 944 const uint8_t *buf, int buf_size)
de6d9b64
FB
945{
946 int ret;
947
fec9ccb7 948 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || buf_size){
9c856d62
MN
949 //FIXME remove the check below _after_ ensuring that all audio check that the available space is enough
950 if(*frame_size_ptr < AVCODEC_MAX_AUDIO_FRAME_SIZE){
951 av_log(avctx, AV_LOG_ERROR, "buffer smaller than AVCODEC_MAX_AUDIO_FRAME_SIZE\n");
952 return -1;
953 }
954 if(*frame_size_ptr < FF_MIN_BUFFER_SIZE ||
81fc2f37 955 *frame_size_ptr < avctx->channels * avctx->frame_size * sizeof(int16_t)){
9c856d62
MN
956 av_log(avctx, AV_LOG_ERROR, "buffer %d too small\n", *frame_size_ptr);
957 return -1;
958 }
959
115329f1 960 ret = avctx->codec->decode(avctx, samples, frame_size_ptr,
fec9ccb7
MN
961 buf, buf_size);
962 avctx->frame_number++;
ac66834c 963 }else{
fec9ccb7 964 ret= 0;
ac66834c
MN
965 *frame_size_ptr=0;
966 }
de6d9b64
FB
967 return ret;
968}
969
240c1657
FB
970int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
971 int *got_sub_ptr,
972 const uint8_t *buf, int buf_size)
973{
974 int ret;
975
976 *got_sub_ptr = 0;
115329f1 977 ret = avctx->codec->decode(avctx, sub, got_sub_ptr,
0431d3b1 978 buf, buf_size);
240c1657
FB
979 if (*got_sub_ptr)
980 avctx->frame_number++;
981 return ret;
982}
983
de6d9b64
FB
984int avcodec_close(AVCodecContext *avctx)
985{
ddebfb15
MN
986 entangled_thread_counter++;
987 if(entangled_thread_counter != 1){
988 av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
989 entangled_thread_counter--;
990 return -1;
991 }
992
ab2cfc59
JG
993 if (ENABLE_THREADS && avctx->thread_opaque)
994 avcodec_thread_free(avctx);
de6d9b64
FB
995 if (avctx->codec->close)
996 avctx->codec->close(avctx);
eea8c08f 997 avcodec_default_free_buffers(avctx);
3123dd79 998 av_freep(&avctx->priv_data);
de6d9b64 999 avctx->codec = NULL;
ddebfb15 1000 entangled_thread_counter--;
de6d9b64
FB
1001 return 0;
1002}
1003
1004AVCodec *avcodec_find_encoder(enum CodecID id)
1005{
1006 AVCodec *p;
1007 p = first_avcodec;
1008 while (p) {
1009 if (p->encode != NULL && p->id == id)
1010 return p;
1011 p = p->next;
1012 }
1013 return NULL;
1014}
1015
98f3b098
A
1016AVCodec *avcodec_find_encoder_by_name(const char *name)
1017{
1018 AVCodec *p;
fc228c90
AJ
1019 if (!name)
1020 return NULL;
98f3b098
A
1021 p = first_avcodec;
1022 while (p) {
1023 if (p->encode != NULL && strcmp(name,p->name) == 0)
1024 return p;
1025 p = p->next;
1026 }
1027 return NULL;
1028}
1029
de6d9b64
FB
1030AVCodec *avcodec_find_decoder(enum CodecID id)
1031{
1032 AVCodec *p;
1033 p = first_avcodec;
1034 while (p) {
1035 if (p->decode != NULL && p->id == id)
1036 return p;
1037 p = p->next;
1038 }
1039 return NULL;
1040}
1041
1042AVCodec *avcodec_find_decoder_by_name(const char *name)
1043{
1044 AVCodec *p;
fc228c90
AJ
1045 if (!name)
1046 return NULL;
de6d9b64
FB
1047 p = first_avcodec;
1048 while (p) {
1049 if (p->decode != NULL && strcmp(name,p->name) == 0)
1050 return p;
1051 p = p->next;
1052 }
1053 return NULL;
1054}
1055
de6d9b64
FB
1056void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1057{
1058 const char *codec_name;
1059 AVCodec *p;
1060 char buf1[32];
a96b68b7 1061 int bitrate;
59771f71 1062 AVRational display_aspect_ratio;
de6d9b64
FB
1063
1064 if (encode)
1065 p = avcodec_find_encoder(enc->codec_id);
1066 else
1067 p = avcodec_find_decoder(enc->codec_id);
1068
1069 if (p) {
1070 codec_name = p->name;
98ce5991
FB
1071 if (!encode && enc->codec_id == CODEC_ID_MP3) {
1072 if (enc->sub_id == 2)
1073 codec_name = "mp2";
1074 else if (enc->sub_id == 1)
1075 codec_name = "mp1";
1076 }
985180a1
FB
1077 } else if (enc->codec_id == CODEC_ID_MPEG2TS) {
1078 /* fake mpeg2 transport stream codec (currently not
1079 registered) */
1080 codec_name = "mpeg2ts";
de6d9b64
FB
1081 } else if (enc->codec_name[0] != '\0') {
1082 codec_name = enc->codec_name;
1083 } else {
1084 /* output avi tags */
115329f1 1085 if( isprint(enc->codec_tag&0xFF) && isprint((enc->codec_tag>>8)&0xFF)
b983a5c6 1086 && isprint((enc->codec_tag>>16)&0xFF) && isprint((enc->codec_tag>>24)&0xFF)){
115329f1 1087 snprintf(buf1, sizeof(buf1), "%c%c%c%c / 0x%04X",
de6d9b64
FB
1088 enc->codec_tag & 0xff,
1089 (enc->codec_tag >> 8) & 0xff,
1090 (enc->codec_tag >> 16) & 0xff,
b983a5c6
MN
1091 (enc->codec_tag >> 24) & 0xff,
1092 enc->codec_tag);
de6d9b64
FB
1093 } else {
1094 snprintf(buf1, sizeof(buf1), "0x%04x", enc->codec_tag);
1095 }
1096 codec_name = buf1;
1097 }
1098
1099 switch(enc->codec_type) {
1100 case CODEC_TYPE_VIDEO:
1101 snprintf(buf, buf_size,
1102 "Video: %s%s",
7d1c3fc1 1103 codec_name, enc->mb_decision ? " (hq)" : "");
82c0c4ba 1104 if (enc->pix_fmt != PIX_FMT_NONE) {
cf087595
FB
1105 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1106 ", %s",
9bbffbb1 1107 avcodec_get_pix_fmt_name(enc->pix_fmt));
cf087595 1108 }
de6d9b64
FB
1109 if (enc->width) {
1110 snprintf(buf + strlen(buf), buf_size - strlen(buf),
21189011
MN
1111 ", %dx%d",
1112 enc->width, enc->height);
7ee4dd02 1113 if (enc->sample_aspect_ratio.num) {
cbaf50f8
BC
1114 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
1115 enc->width*enc->sample_aspect_ratio.num,
1116 enc->height*enc->sample_aspect_ratio.den,
1117 1024*1024);
1118 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1119 " [PAR %d:%d DAR %d:%d]",
1120 enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
1121 display_aspect_ratio.num, display_aspect_ratio.den);
7ee4dd02 1122 }
a309073b 1123 if(av_log_get_level() >= AV_LOG_DEBUG){
21189011
MN
1124 int g= ff_gcd(enc->time_base.num, enc->time_base.den);
1125 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1126 ", %d/%d",
1127 enc->time_base.num/g, enc->time_base.den/g);
1128 }
de6d9b64 1129 }
4bfad535
FB
1130 if (encode) {
1131 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1132 ", q=%d-%d", enc->qmin, enc->qmax);
1133 }
a96b68b7 1134 bitrate = enc->bit_rate;
de6d9b64
FB
1135 break;
1136 case CODEC_TYPE_AUDIO:
1137 snprintf(buf, buf_size,
1138 "Audio: %s",
1139 codec_name);
1140 if (enc->sample_rate) {
1141 snprintf(buf + strlen(buf), buf_size - strlen(buf),
0d72e7d0 1142 ", %d Hz", enc->sample_rate);
de6d9b64 1143 }
0d72e7d0
PR
1144 av_strlcat(buf, ", ", buf_size);
1145 avcodec_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
9e82a113
PR
1146 if (enc->sample_fmt != SAMPLE_FMT_NONE) {
1147 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1148 ", %s", avcodec_get_sample_fmt_name(enc->sample_fmt));
1149 }
115329f1 1150
a96b68b7
FB
1151 /* for PCM codecs, compute bitrate directly */
1152 switch(enc->codec_id) {
143a5d6f
PR
1153 case CODEC_ID_PCM_F64BE:
1154 case CODEC_ID_PCM_F64LE:
1155 bitrate = enc->sample_rate * enc->channels * 64;
1156 break;
b461b3bc
RD
1157 case CODEC_ID_PCM_S32LE:
1158 case CODEC_ID_PCM_S32BE:
1159 case CODEC_ID_PCM_U32LE:
1160 case CODEC_ID_PCM_U32BE:
aa29709e 1161 case CODEC_ID_PCM_F32BE:
143a5d6f 1162 case CODEC_ID_PCM_F32LE:
b461b3bc
RD
1163 bitrate = enc->sample_rate * enc->channels * 32;
1164 break;
1165 case CODEC_ID_PCM_S24LE:
1166 case CODEC_ID_PCM_S24BE:
1167 case CODEC_ID_PCM_U24LE:
1168 case CODEC_ID_PCM_U24BE:
1169 case CODEC_ID_PCM_S24DAUD:
1170 bitrate = enc->sample_rate * enc->channels * 24;
1171 break;
a96b68b7
FB
1172 case CODEC_ID_PCM_S16LE:
1173 case CODEC_ID_PCM_S16BE:
725d86bf 1174 case CODEC_ID_PCM_S16LE_PLANAR:
a96b68b7
FB
1175 case CODEC_ID_PCM_U16LE:
1176 case CODEC_ID_PCM_U16BE:
a190b7e9 1177 bitrate = enc->sample_rate * enc->channels * 16;
a96b68b7
FB
1178 break;
1179 case CODEC_ID_PCM_S8:
1180 case CODEC_ID_PCM_U8:
1181 case CODEC_ID_PCM_ALAW:
1182 case CODEC_ID_PCM_MULAW:
9d49b8ff 1183 case CODEC_ID_PCM_ZORK:
a190b7e9 1184 bitrate = enc->sample_rate * enc->channels * 8;
a96b68b7
FB
1185 break;
1186 default:
1187 bitrate = enc->bit_rate;
1188 break;
1189 }
de6d9b64 1190 break;
985180a1
FB
1191 case CODEC_TYPE_DATA:
1192 snprintf(buf, buf_size, "Data: %s", codec_name);
240c1657
FB
1193 bitrate = enc->bit_rate;
1194 break;
1195 case CODEC_TYPE_SUBTITLE:
1196 snprintf(buf, buf_size, "Subtitle: %s", codec_name);
985180a1
FB
1197 bitrate = enc->bit_rate;
1198 break;
f8d7c9d3
ES
1199 case CODEC_TYPE_ATTACHMENT:
1200 snprintf(buf, buf_size, "Attachment: %s", codec_name);
1201 bitrate = enc->bit_rate;
1202 break;
de6d9b64 1203 default:
9fe5a7b8
MN
1204 snprintf(buf, buf_size, "Invalid Codec type %d", enc->codec_type);
1205 return;
de6d9b64 1206 }
4bfad535
FB
1207 if (encode) {
1208 if (enc->flags & CODEC_FLAG_PASS1)
1209 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1210 ", pass 1");
1211 if (enc->flags & CODEC_FLAG_PASS2)
1212 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1213 ", pass 2");
1214 }
a96b68b7 1215 if (bitrate != 0) {
115329f1 1216 snprintf(buf + strlen(buf), buf_size - strlen(buf),
a96b68b7 1217 ", %d kb/s", bitrate / 1000);
de6d9b64
FB
1218 }
1219}
1220
156e5023
NK
1221unsigned avcodec_version( void )
1222{
1223 return LIBAVCODEC_VERSION_INT;
1224}
cf087595 1225
de6d9b64
FB
1226void avcodec_init(void)
1227{
5e534865 1228 static int initialized = 0;
0344cd0a 1229
5e534865 1230 if (initialized != 0)
bb270c08 1231 return;
5e534865 1232 initialized = 1;
0344cd0a 1233
486497e0 1234 dsputil_static_init();
de6d9b64
FB
1235}
1236
1c2a8c7f
MN
1237void avcodec_flush_buffers(AVCodecContext *avctx)
1238{
7a06ff14
MN
1239 if(avctx->codec->flush)
1240 avctx->codec->flush(avctx);
1c2a8c7f
MN
1241}
1242
b100eab8 1243void avcodec_default_free_buffers(AVCodecContext *s){
d90cf87b
MN
1244 int i, j;
1245
1246 if(s->internal_buffer==NULL) return;
115329f1 1247
d90cf87b
MN
1248 for(i=0; i<INTERNAL_BUFFER_SIZE; i++){
1249 InternalBuffer *buf= &((InternalBuffer*)s->internal_buffer)[i];
1250 for(j=0; j<4; j++){
1251 av_freep(&buf->base[j]);
1252 buf->data[j]= NULL;
1253 }
1254 }
1255 av_freep(&s->internal_buffer);
115329f1 1256
d90cf87b
MN
1257 s->internal_buffer_count=0;
1258}
1259
d8085ea7
MN
1260char av_get_pict_type_char(int pict_type){
1261 switch(pict_type){
fbd4293d
AJ
1262 case FF_I_TYPE: return 'I';
1263 case FF_P_TYPE: return 'P';
1264 case FF_B_TYPE: return 'B';
1265 case FF_S_TYPE: return 'S';
1266 case FF_SI_TYPE:return 'i';
1267 case FF_SP_TYPE:return 'p';
48d533e6 1268 case FF_BI_TYPE:return 'b';
c06ccb13 1269 default: return '?';
d8085ea7
MN
1270 }
1271}
1272
ac3e1834
BC
1273int av_get_bits_per_sample(enum CodecID codec_id){
1274 switch(codec_id){
5da71469 1275 case CODEC_ID_ADPCM_SBPRO_2:
f1b163e0 1276 return 2;
5da71469 1277 case CODEC_ID_ADPCM_SBPRO_3:
f1b163e0 1278 return 3;
5da71469 1279 case CODEC_ID_ADPCM_SBPRO_4:
f1b163e0
AJ
1280 case CODEC_ID_ADPCM_CT:
1281 return 4;
ac3e1834
BC
1282 case CODEC_ID_PCM_ALAW:
1283 case CODEC_ID_PCM_MULAW:
1284 case CODEC_ID_PCM_S8:
1285 case CODEC_ID_PCM_U8:
9d49b8ff 1286 case CODEC_ID_PCM_ZORK:
ac3e1834
BC
1287 return 8;
1288 case CODEC_ID_PCM_S16BE:
1289 case CODEC_ID_PCM_S16LE:
725d86bf 1290 case CODEC_ID_PCM_S16LE_PLANAR:
ac3e1834
BC
1291 case CODEC_ID_PCM_U16BE:
1292 case CODEC_ID_PCM_U16LE:
1293 return 16;
1294 case CODEC_ID_PCM_S24DAUD:
1295 case CODEC_ID_PCM_S24BE:
1296 case CODEC_ID_PCM_S24LE:
1297 case CODEC_ID_PCM_U24BE:
1298 case CODEC_ID_PCM_U24LE:
1299 return 24;
1300 case CODEC_ID_PCM_S32BE:
1301 case CODEC_ID_PCM_S32LE:
1302 case CODEC_ID_PCM_U32BE:
1303 case CODEC_ID_PCM_U32LE:
aa29709e 1304 case CODEC_ID_PCM_F32BE:
143a5d6f 1305 case CODEC_ID_PCM_F32LE:
ac3e1834 1306 return 32;
143a5d6f
PR
1307 case CODEC_ID_PCM_F64BE:
1308 case CODEC_ID_PCM_F64LE:
1309 return 64;
ac3e1834
BC
1310 default:
1311 return 0;
1312 }
1313}
1314
42c71907
DC
1315int av_get_bits_per_sample_format(enum SampleFormat sample_fmt) {
1316 switch (sample_fmt) {
1317 case SAMPLE_FMT_U8:
1318 return 8;
1319 case SAMPLE_FMT_S16:
1320 return 16;
42c71907
DC
1321 case SAMPLE_FMT_S32:
1322 case SAMPLE_FMT_FLT:
1323 return 32;
e06b00f3
PR
1324 case SAMPLE_FMT_DBL:
1325 return 64;
42c71907
DC
1326 default:
1327 return 0;
1328 }
1329}
1330
2450cff2 1331#if !defined(HAVE_THREADS)
ca8ad847
MN
1332int avcodec_thread_init(AVCodecContext *s, int thread_count){
1333 return -1;
1334}
1335#endif
ad2b531d
MR
1336
1337unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1338{
1339 unsigned int n = 0;
1340
1341 while(v >= 0xff) {
1342 *s++ = 0xff;
1343 v -= 0xff;
1344 n++;
1345 }
1346 *s = v;
1347 n++;
1348 return n;
1349}
1005f542
CH
1350
1351/* Wrapper to work around the lack of mkstemp() on mingw/cygin.
1352 * Also, tries to create file in /tmp first, if possible.
1353 * *prefix can be a character constant; *filename will be allocated internally.
1354 * Returns file descriptor of opened file (or -1 on error)
1355 * and opened file name in **filename. */
1356int av_tempfile(char *prefix, char **filename) {
1357 int fd=-1;
6ffa87d3 1358#if !defined(HAVE_MKSTEMP)
1005f542
CH
1359 *filename = tempnam(".", prefix);
1360#else
1361 size_t len = strlen(prefix) + 12; /* room for "/tmp/" and "XXXXXX\0" */
f2508b17 1362 *filename = av_malloc(len);
1005f542
CH
1363#endif
1364 /* -----common section-----*/
1365 if (*filename == NULL) {
1366 av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot allocate file name\n");
1367 return -1;
1368 }
6ffa87d3 1369#if !defined(HAVE_MKSTEMP)
76353b42 1370 fd = open(*filename, O_RDWR | O_BINARY | O_CREAT, 0444);
1005f542
CH
1371#else
1372 snprintf(*filename, len, "/tmp/%sXXXXXX", prefix);
1373 fd = mkstemp(*filename);
1374 if (fd < 0) {
1375 snprintf(*filename, len, "./%sXXXXXX", prefix);
1376 fd = mkstemp(*filename);
1377 }
1378#endif
1379 /* -----common section-----*/
1380 if (fd < 0) {
1381 av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot open temporary file %s\n", *filename);
1382 return -1;
1383 }
1384 return fd; /* success */
1385}
26ef3220
SS
1386
1387typedef struct {
c0ad72a7 1388 const char *abbr;
26ef3220 1389 int width, height;
c0ad72a7
SS
1390} VideoFrameSizeAbbr;
1391
1392typedef struct {
1393 const char *abbr;
1394 int rate_num, rate_den;
1395} VideoFrameRateAbbr;
1396
cf2baeb3 1397static const VideoFrameSizeAbbr video_frame_size_abbrs[] = {
c0ad72a7
SS
1398 { "ntsc", 720, 480 },
1399 { "pal", 720, 576 },
1400 { "qntsc", 352, 240 }, /* VCD compliant NTSC */
1401 { "qpal", 352, 288 }, /* VCD compliant PAL */
1402 { "sntsc", 640, 480 }, /* square pixel NTSC */
1403 { "spal", 768, 576 }, /* square pixel PAL */
1404 { "film", 352, 240 },
1405 { "ntsc-film", 352, 240 },
1406 { "sqcif", 128, 96 },
1407 { "qcif", 176, 144 },
1408 { "cif", 352, 288 },
1409 { "4cif", 704, 576 },
1410 { "qqvga", 160, 120 },
1411 { "qvga", 320, 240 },
1412 { "vga", 640, 480 },
1413 { "svga", 800, 600 },
1414 { "xga", 1024, 768 },
1415 { "uxga", 1600,1200 },
1416 { "qxga", 2048,1536 },
1417 { "sxga", 1280,1024 },
1418 { "qsxga", 2560,2048 },
1419 { "hsxga", 5120,4096 },
1420 { "wvga", 852, 480 },
1421 { "wxga", 1366, 768 },
1422 { "wsxga", 1600,1024 },
1423 { "wuxga", 1920,1200 },
1424 { "woxga", 2560,1600 },
1425 { "wqsxga", 3200,2048 },
1426 { "wquxga", 3840,2400 },
1427 { "whsxga", 6400,4096 },
1428 { "whuxga", 7680,4800 },
1429 { "cga", 320, 200 },
1430 { "ega", 640, 350 },
1431 { "hd480", 852, 480 },
1432 { "hd720", 1280, 720 },
1433 { "hd1080", 1920,1080 },
1434};
1435
cf2baeb3 1436static const VideoFrameRateAbbr video_frame_rate_abbrs[]= {
c0ad72a7
SS
1437 { "ntsc", 30000, 1001 },
1438 { "pal", 25, 1 },
1439 { "qntsc", 30000, 1001 }, /* VCD compliant NTSC */
1440 { "qpal", 25, 1 }, /* VCD compliant PAL */
1441 { "sntsc", 30000, 1001 }, /* square pixel NTSC */
1442 { "spal", 25, 1 }, /* square pixel PAL */
1443 { "film", 24, 1 },
1444 { "ntsc-film", 24000, 1001 },
26ef3220
SS
1445};
1446
1447int av_parse_video_frame_size(int *width_ptr, int *height_ptr, const char *str)
1448{
1449 int i;
37d3e066 1450 int n = FF_ARRAY_ELEMS(video_frame_size_abbrs);
26ef3220
SS
1451 const char *p;
1452 int frame_width = 0, frame_height = 0;
1453
1454 for(i=0;i<n;i++) {
c0ad72a7
SS
1455 if (!strcmp(video_frame_size_abbrs[i].abbr, str)) {
1456 frame_width = video_frame_size_abbrs[i].width;
1457 frame_height = video_frame_size_abbrs[i].height;
26ef3220
SS
1458 break;
1459 }
1460 }
1461 if (i == n) {
1462 p = str;
1463 frame_width = strtol(p, (char **)&p, 10);
1464 if (*p)
1465 p++;
1466 frame_height = strtol(p, (char **)&p, 10);
1467 }
1468 if (frame_width <= 0 || frame_height <= 0)
1469 return -1;
1470 *width_ptr = frame_width;
1471 *height_ptr = frame_height;
1472 return 0;
1473}
1474
1475int av_parse_video_frame_rate(AVRational *frame_rate, const char *arg)
1476{
1477 int i;
37d3e066 1478 int n = FF_ARRAY_ELEMS(video_frame_rate_abbrs);
26ef3220
SS
1479 char* cp;
1480
1481 /* First, we check our abbreviation table */
c0ad72a7
SS
1482 for (i = 0; i < n; ++i)
1483 if (!strcmp(video_frame_rate_abbrs[i].abbr, arg)) {
1484 frame_rate->num = video_frame_rate_abbrs[i].rate_num;
1485 frame_rate->den = video_frame_rate_abbrs[i].rate_den;
26ef3220
SS
1486 return 0;
1487 }
1488
1489 /* Then, we try to parse it as fraction */
1490 cp = strchr(arg, '/');
1491 if (!cp)
1492 cp = strchr(arg, ':');
1493 if (cp) {
1494 char* cpp;
1495 frame_rate->num = strtol(arg, &cpp, 10);
1496 if (cpp != arg || cpp == cp)
1497 frame_rate->den = strtol(cp+1, &cpp, 10);
1498 else
1499 frame_rate->num = 0;
1500 }
1501 else {
1502 /* Finally we give up and parse it as double */
38360668 1503 AVRational time_base = av_d2q(strtod(arg, 0), 1001000);
26ef3220
SS
1504 frame_rate->den = time_base.den;
1505 frame_rate->num = time_base.num;
1506 }
1507 if (!frame_rate->num || !frame_rate->den)
1508 return -1;
1509 else
1510 return 0;
1511}
ea779d91 1512
dbbec0c2 1513void ff_log_missing_feature(void *avc, const char *feature, int want_sample)
ea779d91
JR
1514{
1515 av_log(avc, AV_LOG_WARNING, "%s not implemented. Update your FFmpeg "
1516 "version to the newest one from SVN. If the problem still "
1517 "occurs, it means that your file has a feature which has not "
1518 "been implemented.", feature);
1519 if(want_sample)
1520 av_log(avc, AV_LOG_WARNING, " If you want to help, upload a sample "
0fa5f24c 1521 "of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ "
5163c0d9 1522 "and contact the ffmpeg-devel mailing list.");
ea779d91
JR
1523 av_log(avc, AV_LOG_WARNING, "\n");
1524}