3 * Copyright (c) 2001 Fabrice Bellard.
4 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
6 * This file is part of FFmpeg.
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
28 /* needed for mkstemp() */
29 #define _XOPEN_SOURCE 500
31 #include "libavutil/integer.h"
32 #include "libavutil/crc.h"
36 #include "imgconvert.h"
37 #include "audioconvert.h"
42 #if !defined(HAVE_MKSTEMP)
46 const uint8_t ff_reverse[256]={
47 0x00,0x80,0x40,0xC0,0x20,0xA0,0x60,0xE0,0x10,0x90,0x50,0xD0,0x30,0xB0,0x70,0xF0,
48 0x08,0x88,0x48,0xC8,0x28,0xA8,0x68,0xE8,0x18,0x98,0x58,0xD8,0x38,0xB8,0x78,0xF8,
49 0x04,0x84,0x44,0xC4,0x24,0xA4,0x64,0xE4,0x14,0x94,0x54,0xD4,0x34,0xB4,0x74,0xF4,
50 0x0C,0x8C,0x4C,0xCC,0x2C,0xAC,0x6C,0xEC,0x1C,0x9C,0x5C,0xDC,0x3C,0xBC,0x7C,0xFC,
51 0x02,0x82,0x42,0xC2,0x22,0xA2,0x62,0xE2,0x12,0x92,0x52,0xD2,0x32,0xB2,0x72,0xF2,
52 0x0A,0x8A,0x4A,0xCA,0x2A,0xAA,0x6A,0xEA,0x1A,0x9A,0x5A,0xDA,0x3A,0xBA,0x7A,0xFA,
53 0x06,0x86,0x46,0xC6,0x26,0xA6,0x66,0xE6,0x16,0x96,0x56,0xD6,0x36,0xB6,0x76,0xF6,
54 0x0E,0x8E,0x4E,0xCE,0x2E,0xAE,0x6E,0xEE,0x1E,0x9E,0x5E,0xDE,0x3E,0xBE,0x7E,0xFE,
55 0x01,0x81,0x41,0xC1,0x21,0xA1,0x61,0xE1,0x11,0x91,0x51,0xD1,0x31,0xB1,0x71,0xF1,
56 0x09,0x89,0x49,0xC9,0x29,0xA9,0x69,0xE9,0x19,0x99,0x59,0xD9,0x39,0xB9,0x79,0xF9,
57 0x05,0x85,0x45,0xC5,0x25,0xA5,0x65,0xE5,0x15,0x95,0x55,0xD5,0x35,0xB5,0x75,0xF5,
58 0x0D,0x8D,0x4D,0xCD,0x2D,0xAD,0x6D,0xED,0x1D,0x9D,0x5D,0xDD,0x3D,0xBD,0x7D,0xFD,
59 0x03,0x83,0x43,0xC3,0x23,0xA3,0x63,0xE3,0x13,0x93,0x53,0xD3,0x33,0xB3,0x73,0xF3,
60 0x0B,0x8B,0x4B,0xCB,0x2B,0xAB,0x6B,0xEB,0x1B,0x9B,0x5B,0xDB,0x3B,0xBB,0x7B,0xFB,
61 0x07,0x87,0x47,0xC7,0x27,0xA7,0x67,0xE7,0x17,0x97,0x57,0xD7,0x37,0xB7,0x77,0xF7,
62 0x0F,0x8F,0x4F,0xCF,0x2F,0xAF,0x6F,0xEF,0x1F,0x9F,0x5F,0xDF,0x3F,0xBF,0x7F,0xFF,
65 static int volatile entangled_thread_counter=0;
67 void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size)
72 *size= FFMAX(17*min_size/16 + 32, min_size);
74 ptr= av_realloc(ptr, *size);
75 if(!ptr) //we could set this to the unmodified min_size but this is safer if the user lost the ptr and uses NULL now
81 /* encoder management */
82 AVCodec *first_avcodec = NULL;
84 AVCodec *av_codec_next(AVCodec *c){
86 else return first_avcodec;
89 void register_avcodec(AVCodec *format)
93 while (*p != NULL) p = &(*p)->next;
98 void avcodec_set_dimensions(AVCodecContext *s, int width, int height){
99 s->coded_width = width;
100 s->coded_height= height;
101 s->width = -((-width )>>s->lowres);
102 s->height= -((-height)>>s->lowres);
105 typedef struct InternalBuffer{
111 enum PixelFormat pix_fmt;
114 #define INTERNAL_BUFFER_SIZE 32
116 #define ALIGN(x, a) (((x)+(a)-1)&~((a)-1))
118 void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height){
123 case PIX_FMT_YUV420P:
124 case PIX_FMT_YUYV422:
125 case PIX_FMT_UYVY422:
126 case PIX_FMT_YUV422P:
127 case PIX_FMT_YUV444P:
129 case PIX_FMT_GRAY16BE:
130 case PIX_FMT_GRAY16LE:
131 case PIX_FMT_YUVJ420P:
132 case PIX_FMT_YUVJ422P:
133 case PIX_FMT_YUVJ444P:
134 case PIX_FMT_YUVA420P:
135 w_align= 16; //FIXME check for non mpeg style codecs and use less alignment
138 case PIX_FMT_YUV411P:
139 case PIX_FMT_UYYVYY411:
143 case PIX_FMT_YUV410P:
144 if(s->codec_id == CODEC_ID_SVQ1){
149 if(s->codec_id == CODEC_ID_RPZA){
154 if(s->codec_id == CODEC_ID_SMC){
160 if((s->codec_id == CODEC_ID_MSZH) || (s->codec_id == CODEC_ID_ZLIB)){
171 *width = ALIGN(*width , w_align);
172 *height= ALIGN(*height, h_align);
175 int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h){
176 if((int)w>0 && (int)h>0 && (w+128)*(uint64_t)(h+128) < INT_MAX/4)
179 av_log(av_log_ctx, AV_LOG_ERROR, "picture size invalid (%ux%u)\n", w, h);
183 int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic){
190 if(pic->data[0]!=NULL) {
191 av_log(s, AV_LOG_ERROR, "pic->data[0]!=NULL in avcodec_default_get_buffer\n");
194 if(s->internal_buffer_count >= INTERNAL_BUFFER_SIZE) {
195 av_log(s, AV_LOG_ERROR, "internal_buffer_count overflow (missing release_buffer?)\n");
199 if(avcodec_check_dimensions(s,w,h))
202 if(s->internal_buffer==NULL){
203 s->internal_buffer= av_mallocz((INTERNAL_BUFFER_SIZE+1)*sizeof(InternalBuffer));
206 s->internal_buffer= av_fast_realloc(
208 &s->internal_buffer_size,
209 sizeof(InternalBuffer)*FFMAX(99, s->internal_buffer_count+1)/*FIXME*/
213 buf= &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count];
214 picture_number= &(((InternalBuffer*)s->internal_buffer)[INTERNAL_BUFFER_SIZE]).last_pic_num; //FIXME ugly hack
217 if(buf->base[0] && (buf->width != w || buf->height != h || buf->pix_fmt != s->pix_fmt)){
219 av_freep(&buf->base[i]);
225 pic->age= *picture_number - buf->last_pic_num;
226 buf->last_pic_num= *picture_number;
228 int h_chroma_shift, v_chroma_shift;
233 avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
235 avcodec_align_dimensions(s, &w, &h);
237 if(!(s->flags&CODEC_FLAG_EMU_EDGE)){
241 avcodec_align_dimensions(s, &w, &h);
243 ff_fill_linesize(&picture, s->pix_fmt, w);
246 picture.linesize[i] = ALIGN(picture.linesize[i], STRIDE_ALIGN);
248 tmpsize = ff_fill_pointer(&picture, NULL, s->pix_fmt, h);
250 for (i=0; i<3 && picture.data[i+1]; i++)
251 size[i] = picture.data[i+1] - picture.data[i];
252 size[i] = tmpsize - (picture.data[i] - picture.data[0]);
254 buf->last_pic_num= -256*256*256*64;
255 memset(buf->base, 0, sizeof(buf->base));
256 memset(buf->data, 0, sizeof(buf->data));
258 for(i=0; i<4 && size[i]; i++){
259 const int h_shift= i==0 ? 0 : h_chroma_shift;
260 const int v_shift= i==0 ? 0 : v_chroma_shift;
262 buf->linesize[i]= picture.linesize[i];
264 buf->base[i]= av_malloc(size[i]+16); //FIXME 16
265 if(buf->base[i]==NULL) return -1;
266 memset(buf->base[i], 128, size[i]);
268 // no edge if EDEG EMU or not planar YUV, we check for PAL8 redundantly to protect against a exploitable bug regression ...
269 if((s->flags&CODEC_FLAG_EMU_EDGE) || (s->pix_fmt == PIX_FMT_PAL8) || !size[2])
270 buf->data[i] = buf->base[i];
272 buf->data[i] = buf->base[i] + ALIGN((buf->linesize[i]*EDGE_WIDTH>>v_shift) + (EDGE_WIDTH>>h_shift), STRIDE_ALIGN);
274 buf->width = s->width;
275 buf->height = s->height;
276 buf->pix_fmt= s->pix_fmt;
277 pic->age= 256*256*256*64;
279 pic->type= FF_BUFFER_TYPE_INTERNAL;
282 pic->base[i]= buf->base[i];
283 pic->data[i]= buf->data[i];
284 pic->linesize[i]= buf->linesize[i];
286 s->internal_buffer_count++;
288 pic->reordered_opaque= s->reordered_opaque;
290 if(s->debug&FF_DEBUG_BUFFERS)
291 av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p, %d buffers used\n", pic, s->internal_buffer_count);
296 void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic){
298 InternalBuffer *buf, *last;
300 assert(pic->type==FF_BUFFER_TYPE_INTERNAL);
301 assert(s->internal_buffer_count);
303 buf = NULL; /* avoids warning */
304 for(i=0; i<s->internal_buffer_count; i++){ //just 3-5 checks so is not worth to optimize
305 buf= &((InternalBuffer*)s->internal_buffer)[i];
306 if(buf->data[0] == pic->data[0])
309 assert(i < s->internal_buffer_count);
310 s->internal_buffer_count--;
311 last = &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count];
313 FFSWAP(InternalBuffer, *buf, *last);
317 // pic->base[i]=NULL;
319 //printf("R%X\n", pic->opaque);
321 if(s->debug&FF_DEBUG_BUFFERS)
322 av_log(s, AV_LOG_DEBUG, "default_release_buffer called on pic %p, %d buffers used\n", pic, s->internal_buffer_count);
325 int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic){
329 /* If no picture return a new buffer */
330 if(pic->data[0] == NULL) {
331 /* We will copy from buffer, so must be readable */
332 pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
333 return s->get_buffer(s, pic);
336 /* If internal buffer type return the same buffer */
337 if(pic->type == FF_BUFFER_TYPE_INTERNAL)
341 * Not internal type and reget_buffer not overridden, emulate cr buffer
344 for(i = 0; i < 4; i++)
345 pic->data[i] = pic->base[i] = NULL;
347 /* Allocate new frame */
348 if (s->get_buffer(s, pic))
350 /* Copy image data from old buffer to new buffer */
351 av_picture_copy((AVPicture*)pic, (AVPicture*)&temp_pic, s->pix_fmt, s->width,
353 s->release_buffer(s, &temp_pic); // Release old frame
357 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count){
360 for(i=0; i<count; i++){
361 int r= func(c, arg[i]);
367 enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt){
371 static const char* context_to_name(void* ptr) {
372 AVCodecContext *avc= ptr;
374 if(avc && avc->codec && avc->codec->name)
375 return avc->codec->name;
380 #define OFFSET(x) offsetof(AVCodecContext,x)
381 #define DEFAULT 0 //should be NAN but it does not work as it is not a constant in glibc as required by ANSI/ISO C
382 //these names are too long to be readable
383 #define V AV_OPT_FLAG_VIDEO_PARAM
384 #define A AV_OPT_FLAG_AUDIO_PARAM
385 #define S AV_OPT_FLAG_SUBTITLE_PARAM
386 #define E AV_OPT_FLAG_ENCODING_PARAM
387 #define D AV_OPT_FLAG_DECODING_PARAM
389 #define AV_CODEC_DEFAULT_BITRATE 200*1000
391 static const AVOption options[]={
392 {"b", "set bitrate (in bits/s)", OFFSET(bit_rate), FF_OPT_TYPE_INT, AV_CODEC_DEFAULT_BITRATE, INT_MIN, INT_MAX, V|E},
393 {"ab", "set bitrate (in bits/s)", OFFSET(bit_rate), FF_OPT_TYPE_INT, 64*1000, INT_MIN, INT_MAX, A|E},
394 {"bt", "set video bitrate tolerance (in bits/s)", OFFSET(bit_rate_tolerance), FF_OPT_TYPE_INT, AV_CODEC_DEFAULT_BITRATE*20, 1, INT_MAX, V|E},
395 {"flags", NULL, OFFSET(flags), FF_OPT_TYPE_FLAGS, DEFAULT, 0, UINT_MAX, V|A|E|D, "flags"},
396 {"mv4", "use four motion vector by macroblock (mpeg4)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_4MV, INT_MIN, INT_MAX, V|E, "flags"},
397 {"obmc", "use overlapped block motion compensation (h263+)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_OBMC, INT_MIN, INT_MAX, V|E, "flags"},
398 {"qpel", "use 1/4 pel motion compensation", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_QPEL, INT_MIN, INT_MAX, V|E, "flags"},
399 {"loop", "use loop filter", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_LOOP_FILTER, INT_MIN, INT_MAX, V|E, "flags"},
400 {"qscale", "use fixed qscale", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_QSCALE, INT_MIN, INT_MAX, 0, "flags"},
401 {"gmc", "use gmc", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_GMC, INT_MIN, INT_MAX, V|E, "flags"},
402 {"mv0", "always try a mb with mv=<0,0>", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_MV0, INT_MIN, INT_MAX, V|E, "flags"},
403 {"part", "use data partitioning", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PART, INT_MIN, INT_MAX, V|E, "flags"},
404 {"input_preserved", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG_INPUT_PRESERVED, INT_MIN, INT_MAX, 0, "flags"},
405 {"pass1", "use internal 2pass ratecontrol in first pass mode", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PASS1, INT_MIN, INT_MAX, 0, "flags"},
406 {"pass2", "use internal 2pass ratecontrol in second pass mode", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PASS2, INT_MIN, INT_MAX, 0, "flags"},
407 {"extern_huff", "use external huffman table (for mjpeg)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_EXTERN_HUFF, INT_MIN, INT_MAX, 0, "flags"},
408 {"gray", "only decode/encode grayscale", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_GRAY, INT_MIN, INT_MAX, V|E|D, "flags"},
409 {"emu_edge", "don't draw edges", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_EMU_EDGE, INT_MIN, INT_MAX, 0, "flags"},
410 {"psnr", "error[?] variables will be set during encoding", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PSNR, INT_MIN, INT_MAX, V|E, "flags"},
411 {"truncated", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG_TRUNCATED, INT_MIN, INT_MAX, 0, "flags"},
412 {"naq", "normalize adaptive quantization", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_NORMALIZE_AQP, INT_MIN, INT_MAX, V|E, "flags"},
413 {"ildct", "use interlaced dct", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_INTERLACED_DCT, INT_MIN, INT_MAX, V|E, "flags"},
414 {"low_delay", "force low delay", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_LOW_DELAY, INT_MIN, INT_MAX, V|D|E, "flags"},
415 {"alt", "enable alternate scantable (mpeg2/mpeg4)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_ALT_SCAN, INT_MIN, INT_MAX, V|E, "flags"},
416 {"global_header", "place global headers in extradata instead of every keyframe", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_GLOBAL_HEADER, INT_MIN, INT_MAX, V|A|E, "flags"},
417 {"bitexact", "use only bitexact stuff (except (i)dct)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_BITEXACT, INT_MIN, INT_MAX, A|V|S|D|E, "flags"},
418 {"aic", "h263 advanced intra coding / mpeg4 ac prediction", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_AC_PRED, INT_MIN, INT_MAX, V|E, "flags"},
419 {"umv", "use unlimited motion vectors", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_H263P_UMV, INT_MIN, INT_MAX, V|E, "flags"},
420 {"cbp", "use rate distortion optimization for cbp", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_CBP_RD, INT_MIN, INT_MAX, V|E, "flags"},
421 {"qprd", "use rate distortion optimization for qp selection", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_QP_RD, INT_MIN, INT_MAX, V|E, "flags"},
422 {"aiv", "h263 alternative inter vlc", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_H263P_AIV, INT_MIN, INT_MAX, V|E, "flags"},
423 {"slice", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG_H263P_SLICE_STRUCT, INT_MIN, INT_MAX, V|E, "flags"},
424 {"ilme", "interlaced motion estimation", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_INTERLACED_ME, INT_MIN, INT_MAX, V|E, "flags"},
425 {"scan_offset", "will reserve space for svcd scan offset user data", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_SVCD_SCAN_OFFSET, INT_MIN, INT_MAX, V|E, "flags"},
426 {"cgop", "closed gop", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_CLOSED_GOP, INT_MIN, INT_MAX, V|E, "flags"},
427 {"fast", "allow non spec compliant speedup tricks", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_FAST, INT_MIN, INT_MAX, V|E, "flags2"},
428 {"sgop", "strictly enforce gop size", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_STRICT_GOP, INT_MIN, INT_MAX, V|E, "flags2"},
429 {"noout", "skip bitstream encoding", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_NO_OUTPUT, INT_MIN, INT_MAX, V|E, "flags2"},
430 {"local_header", "place global headers at every keyframe instead of in extradata", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_LOCAL_HEADER, INT_MIN, INT_MAX, V|E, "flags2"},
431 {"sub_id", NULL, OFFSET(sub_id), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
432 {"me_method", "set motion estimation method", OFFSET(me_method), FF_OPT_TYPE_INT, ME_EPZS, INT_MIN, INT_MAX, V|E, "me_method"},
433 {"zero", "zero motion estimation (fastest)", 0, FF_OPT_TYPE_CONST, ME_ZERO, INT_MIN, INT_MAX, V|E, "me_method" },
434 {"full", "full motion estimation (slowest)", 0, FF_OPT_TYPE_CONST, ME_FULL, INT_MIN, INT_MAX, V|E, "me_method" },
435 {"epzs", "EPZS motion estimation (default)", 0, FF_OPT_TYPE_CONST, ME_EPZS, INT_MIN, INT_MAX, V|E, "me_method" },
436 {"esa", "esa motion estimation (alias for full)", 0, FF_OPT_TYPE_CONST, ME_FULL, INT_MIN, INT_MAX, V|E, "me_method" },
437 {"tesa", "tesa motion estimation", 0, FF_OPT_TYPE_CONST, ME_TESA, INT_MIN, INT_MAX, V|E, "me_method" },
438 {"dia", "dia motion estimation (alias for epzs)", 0, FF_OPT_TYPE_CONST, ME_EPZS, INT_MIN, INT_MAX, V|E, "me_method" },
439 {"log", "log motion estimation", 0, FF_OPT_TYPE_CONST, ME_LOG, INT_MIN, INT_MAX, V|E, "me_method" },
440 {"phods", "phods motion estimation", 0, FF_OPT_TYPE_CONST, ME_PHODS, INT_MIN, INT_MAX, V|E, "me_method" },
441 {"x1", "X1 motion estimation", 0, FF_OPT_TYPE_CONST, ME_X1, INT_MIN, INT_MAX, V|E, "me_method" },
442 {"hex", "hex motion estimation", 0, FF_OPT_TYPE_CONST, ME_HEX, INT_MIN, INT_MAX, V|E, "me_method" },
443 {"umh", "umh motion estimation", 0, FF_OPT_TYPE_CONST, ME_UMH, INT_MIN, INT_MAX, V|E, "me_method" },
444 {"iter", "iter motion estimation", 0, FF_OPT_TYPE_CONST, ME_ITER, INT_MIN, INT_MAX, V|E, "me_method" },
445 {"extradata_size", NULL, OFFSET(extradata_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
446 {"time_base", NULL, OFFSET(time_base), FF_OPT_TYPE_RATIONAL, DEFAULT, INT_MIN, INT_MAX},
447 {"g", "set the group of picture size", OFFSET(gop_size), FF_OPT_TYPE_INT, 12, INT_MIN, INT_MAX, V|E},
448 {"rate_emu", "frame rate emulation", OFFSET(rate_emu), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
449 {"ar", "set audio sampling rate (in Hz)", OFFSET(sample_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
450 {"ac", "set number of audio channels", OFFSET(channels), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
451 {"cutoff", "set cutoff bandwidth", OFFSET(cutoff), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, A|E},
452 {"frame_size", NULL, OFFSET(frame_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, A|E},
453 {"frame_number", NULL, OFFSET(frame_number), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
454 {"real_pict_num", NULL, OFFSET(real_pict_num), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
455 {"delay", NULL, OFFSET(delay), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
456 {"qcomp", "video quantizer scale compression (VBR)", OFFSET(qcompress), FF_OPT_TYPE_FLOAT, 0.5, -FLT_MAX, FLT_MAX, V|E},
457 {"qblur", "video quantizer scale blur (VBR)", OFFSET(qblur), FF_OPT_TYPE_FLOAT, 0.5, 0, FLT_MAX, V|E},
458 {"qmin", "min video quantizer scale (VBR)", OFFSET(qmin), FF_OPT_TYPE_INT, 2, 1, 51, V|E},
459 {"qmax", "max video quantizer scale (VBR)", OFFSET(qmax), FF_OPT_TYPE_INT, 31, 1, 51, V|E},
460 {"qdiff", "max difference between the quantizer scale (VBR)", OFFSET(max_qdiff), FF_OPT_TYPE_INT, 3, INT_MIN, INT_MAX, V|E},
461 {"bf", "use 'frames' B frames", OFFSET(max_b_frames), FF_OPT_TYPE_INT, DEFAULT, 0, FF_MAX_B_FRAMES, V|E},
462 {"b_qfactor", "qp factor between p and b frames", OFFSET(b_quant_factor), FF_OPT_TYPE_FLOAT, 1.25, -FLT_MAX, FLT_MAX, V|E},
463 {"rc_strategy", "ratecontrol method", OFFSET(rc_strategy), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
464 {"b_strategy", "strategy to choose between I/P/B-frames", OFFSET(b_frame_strategy), FF_OPT_TYPE_INT, 0, INT_MIN, INT_MAX, V|E},
465 {"hurry_up", NULL, OFFSET(hurry_up), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D},
466 {"ps", "rtp payload size in bits", OFFSET(rtp_payload_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
467 {"mv_bits", NULL, OFFSET(mv_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
468 {"header_bits", NULL, OFFSET(header_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
469 {"i_tex_bits", NULL, OFFSET(i_tex_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
470 {"p_tex_bits", NULL, OFFSET(p_tex_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
471 {"i_count", NULL, OFFSET(i_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
472 {"p_count", NULL, OFFSET(p_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
473 {"skip_count", NULL, OFFSET(skip_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
474 {"misc_bits", NULL, OFFSET(misc_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
475 {"frame_bits", NULL, OFFSET(frame_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
476 {"codec_tag", NULL, OFFSET(codec_tag), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
477 {"bug", "workaround not auto detected encoder bugs", OFFSET(workaround_bugs), FF_OPT_TYPE_FLAGS, FF_BUG_AUTODETECT, INT_MIN, INT_MAX, V|D, "bug"},
478 {"autodetect", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_AUTODETECT, INT_MIN, INT_MAX, V|D, "bug"},
479 {"old_msmpeg4", "some old lavc generated msmpeg4v3 files (no autodetection)", 0, FF_OPT_TYPE_CONST, FF_BUG_OLD_MSMPEG4, INT_MIN, INT_MAX, V|D, "bug"},
480 {"xvid_ilace", "Xvid interlacing bug (autodetected if fourcc==XVIX)", 0, FF_OPT_TYPE_CONST, FF_BUG_XVID_ILACE, INT_MIN, INT_MAX, V|D, "bug"},
481 {"ump4", "(autodetected if fourcc==UMP4)", 0, FF_OPT_TYPE_CONST, FF_BUG_UMP4, INT_MIN, INT_MAX, V|D, "bug"},
482 {"no_padding", "padding bug (autodetected)", 0, FF_OPT_TYPE_CONST, FF_BUG_NO_PADDING, INT_MIN, INT_MAX, V|D, "bug"},
483 {"amv", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_AMV, INT_MIN, INT_MAX, V|D, "bug"},
484 {"ac_vlc", "illegal vlc bug (autodetected per fourcc)", 0, FF_OPT_TYPE_CONST, FF_BUG_AC_VLC, INT_MIN, INT_MAX, V|D, "bug"},
485 {"qpel_chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_QPEL_CHROMA, INT_MIN, INT_MAX, V|D, "bug"},
486 {"std_qpel", "old standard qpel (autodetected per fourcc/version)", 0, FF_OPT_TYPE_CONST, FF_BUG_STD_QPEL, INT_MIN, INT_MAX, V|D, "bug"},
487 {"qpel_chroma2", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_QPEL_CHROMA2, INT_MIN, INT_MAX, V|D, "bug"},
488 {"direct_blocksize", "direct-qpel-blocksize bug (autodetected per fourcc/version)", 0, FF_OPT_TYPE_CONST, FF_BUG_DIRECT_BLOCKSIZE, INT_MIN, INT_MAX, V|D, "bug"},
489 {"edge", "edge padding bug (autodetected per fourcc/version)", 0, FF_OPT_TYPE_CONST, FF_BUG_EDGE, INT_MIN, INT_MAX, V|D, "bug"},
490 {"hpel_chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_HPEL_CHROMA, INT_MIN, INT_MAX, V|D, "bug"},
491 {"dc_clip", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_DC_CLIP, INT_MIN, INT_MAX, V|D, "bug"},
492 {"ms", "workaround various bugs in microsofts broken decoders", 0, FF_OPT_TYPE_CONST, FF_BUG_MS, INT_MIN, INT_MAX, V|D, "bug"},
493 {"lelim", "single coefficient elimination threshold for luminance (negative values also consider dc coefficient)", OFFSET(luma_elim_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
494 {"celim", "single coefficient elimination threshold for chrominance (negative values also consider dc coefficient)", OFFSET(chroma_elim_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
495 {"strict", "how strictly to follow the standards", OFFSET(strict_std_compliance), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, A|V|D|E, "strict"},
496 {"very", "strictly conform to a older more strict version of the spec or reference software", 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_VERY_STRICT, INT_MIN, INT_MAX, V|D|E, "strict"},
497 {"strict", "strictly conform to all the things in the spec no matter what consequences", 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_STRICT, INT_MIN, INT_MAX, V|D|E, "strict"},
498 {"normal", NULL, 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_NORMAL, INT_MIN, INT_MAX, V|D|E, "strict"},
499 {"inofficial", "allow inofficial extensions", 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_INOFFICIAL, INT_MIN, INT_MAX, V|D|E, "strict"},
500 {"experimental", "allow non standardized experimental things", 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_EXPERIMENTAL, INT_MIN, INT_MAX, V|D|E, "strict"},
501 {"b_qoffset", "qp offset between P and B frames", OFFSET(b_quant_offset), FF_OPT_TYPE_FLOAT, 1.25, -FLT_MAX, FLT_MAX, V|E},
502 {"er", "set error resilience strategy", OFFSET(error_resilience), FF_OPT_TYPE_INT, FF_ER_CAREFUL, INT_MIN, INT_MAX, A|V|D, "er"},
503 {"careful", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_CAREFUL, INT_MIN, INT_MAX, V|D, "er"},
504 {"compliant", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_COMPLIANT, INT_MIN, INT_MAX, V|D, "er"},
505 {"aggressive", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_AGGRESSIVE, INT_MIN, INT_MAX, V|D, "er"},
506 {"very_aggressive", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_VERY_AGGRESSIVE, INT_MIN, INT_MAX, V|D, "er"},
507 {"has_b_frames", NULL, OFFSET(has_b_frames), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
508 {"block_align", NULL, OFFSET(block_align), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
509 {"parse_only", NULL, OFFSET(parse_only), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
510 {"mpeg_quant", "use MPEG quantizers instead of H.263", OFFSET(mpeg_quant), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
511 {"stats_out", NULL, OFFSET(stats_out), FF_OPT_TYPE_STRING, DEFAULT, CHAR_MIN, CHAR_MAX},
512 {"stats_in", NULL, OFFSET(stats_in), FF_OPT_TYPE_STRING, DEFAULT, CHAR_MIN, CHAR_MAX},
513 {"qsquish", "how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function)", OFFSET(rc_qsquish), FF_OPT_TYPE_FLOAT, DEFAULT, 0, 99, V|E},
514 {"rc_qmod_amp", "experimental quantizer modulation", OFFSET(rc_qmod_amp), FF_OPT_TYPE_FLOAT, DEFAULT, -FLT_MAX, FLT_MAX, V|E},
515 {"rc_qmod_freq", "experimental quantizer modulation", OFFSET(rc_qmod_freq), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
516 {"rc_override_count", NULL, OFFSET(rc_override_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
517 {"rc_eq", "set rate control equation", OFFSET(rc_eq), FF_OPT_TYPE_STRING, DEFAULT, CHAR_MIN, CHAR_MAX, V|E},
518 {"maxrate", "set max video bitrate tolerance (in bits/s)", OFFSET(rc_max_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
519 {"minrate", "set min video bitrate tolerance (in bits/s)", OFFSET(rc_min_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
520 {"bufsize", "set ratecontrol buffer size (in bits)", OFFSET(rc_buffer_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, A|V|E},
521 {"rc_buf_aggressivity", "currently useless", OFFSET(rc_buffer_aggressivity), FF_OPT_TYPE_FLOAT, 1.0, -FLT_MAX, FLT_MAX, V|E},
522 {"i_qfactor", "qp factor between P and I frames", OFFSET(i_quant_factor), FF_OPT_TYPE_FLOAT, -0.8, -FLT_MAX, FLT_MAX, V|E},
523 {"i_qoffset", "qp offset between P and I frames", OFFSET(i_quant_offset), FF_OPT_TYPE_FLOAT, 0.0, -FLT_MAX, FLT_MAX, V|E},
524 {"rc_init_cplx", "initial complexity for 1-pass encoding", OFFSET(rc_initial_cplx), FF_OPT_TYPE_FLOAT, DEFAULT, -FLT_MAX, FLT_MAX, V|E},
525 {"dct", "DCT algorithm", OFFSET(dct_algo), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, V|E, "dct"},
526 {"auto", "autoselect a good one (default)", 0, FF_OPT_TYPE_CONST, FF_DCT_AUTO, INT_MIN, INT_MAX, V|E, "dct"},
527 {"fastint", "fast integer", 0, FF_OPT_TYPE_CONST, FF_DCT_FASTINT, INT_MIN, INT_MAX, V|E, "dct"},
528 {"int", "accurate integer", 0, FF_OPT_TYPE_CONST, FF_DCT_INT, INT_MIN, INT_MAX, V|E, "dct"},
529 {"mmx", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_MMX, INT_MIN, INT_MAX, V|E, "dct"},
530 {"mlib", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_MLIB, INT_MIN, INT_MAX, V|E, "dct"},
531 {"altivec", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_ALTIVEC, INT_MIN, INT_MAX, V|E, "dct"},
532 {"faan", "floating point AAN DCT", 0, FF_OPT_TYPE_CONST, FF_DCT_FAAN, INT_MIN, INT_MAX, V|E, "dct"},
533 {"lumi_mask", "compresses bright areas stronger than medium ones", OFFSET(lumi_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
534 {"tcplx_mask", "temporal complexity masking", OFFSET(temporal_cplx_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
535 {"scplx_mask", "spatial complexity masking", OFFSET(spatial_cplx_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
536 {"p_mask", "inter masking", OFFSET(p_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
537 {"dark_mask", "compresses dark areas stronger than medium ones", OFFSET(dark_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
538 {"idct", "select IDCT implementation", OFFSET(idct_algo), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, V|E|D, "idct"},
539 {"auto", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_AUTO, INT_MIN, INT_MAX, V|E|D, "idct"},
540 {"int", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_INT, INT_MIN, INT_MAX, V|E|D, "idct"},
541 {"simple", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLE, INT_MIN, INT_MAX, V|E|D, "idct"},
542 {"simplemmx", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEMMX, INT_MIN, INT_MAX, V|E|D, "idct"},
543 {"libmpeg2mmx", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_LIBMPEG2MMX, INT_MIN, INT_MAX, V|E|D, "idct"},
544 {"ps2", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_PS2, INT_MIN, INT_MAX, V|E|D, "idct"},
545 {"mlib", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_MLIB, INT_MIN, INT_MAX, V|E|D, "idct"},
546 {"arm", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_ARM, INT_MIN, INT_MAX, V|E|D, "idct"},
547 {"altivec", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_ALTIVEC, INT_MIN, INT_MAX, V|E|D, "idct"},
548 {"sh4", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SH4, INT_MIN, INT_MAX, V|E|D, "idct"},
549 {"simplearm", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEARM, INT_MIN, INT_MAX, V|E|D, "idct"},
550 {"simplearmv5te", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEARMV5TE, INT_MIN, INT_MAX, V|E|D, "idct"},
551 {"simplearmv6", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEARMV6, INT_MIN, INT_MAX, V|E|D, "idct"},
552 {"h264", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_H264, INT_MIN, INT_MAX, V|E|D, "idct"},
553 {"vp3", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_VP3, INT_MIN, INT_MAX, V|E|D, "idct"},
554 {"ipp", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_IPP, INT_MIN, INT_MAX, V|E|D, "idct"},
555 {"xvidmmx", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_XVIDMMX, INT_MIN, INT_MAX, V|E|D, "idct"},
556 {"faani", "floating point AAN IDCT", 0, FF_OPT_TYPE_CONST, FF_IDCT_FAAN, INT_MIN, INT_MAX, V|D|E, "idct"},
557 {"slice_count", NULL, OFFSET(slice_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
558 {"ec", "set error concealment strategy", OFFSET(error_concealment), FF_OPT_TYPE_FLAGS, 3, INT_MIN, INT_MAX, V|D, "ec"},
559 {"guess_mvs", "iterative motion vector (MV) search (slow)", 0, FF_OPT_TYPE_CONST, FF_EC_GUESS_MVS, INT_MIN, INT_MAX, V|D, "ec"},
560 {"deblock", "use strong deblock filter for damaged MBs", 0, FF_OPT_TYPE_CONST, FF_EC_DEBLOCK, INT_MIN, INT_MAX, V|D, "ec"},
561 {"bits_per_coded_sample", NULL, OFFSET(bits_per_coded_sample), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
562 {"pred", "prediction method", OFFSET(prediction_method), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "pred"},
563 {"left", NULL, 0, FF_OPT_TYPE_CONST, FF_PRED_LEFT, INT_MIN, INT_MAX, V|E, "pred"},
564 {"plane", NULL, 0, FF_OPT_TYPE_CONST, FF_PRED_PLANE, INT_MIN, INT_MAX, V|E, "pred"},
565 {"median", NULL, 0, FF_OPT_TYPE_CONST, FF_PRED_MEDIAN, INT_MIN, INT_MAX, V|E, "pred"},
566 {"aspect", "sample aspect ratio", OFFSET(sample_aspect_ratio), FF_OPT_TYPE_RATIONAL, DEFAULT, 0, 10, V|E},
567 {"debug", "print specific debug info", OFFSET(debug), FF_OPT_TYPE_FLAGS, DEFAULT, 0, INT_MAX, V|A|S|E|D, "debug"},
568 {"pict", "picture info", 0, FF_OPT_TYPE_CONST, FF_DEBUG_PICT_INFO, INT_MIN, INT_MAX, V|D, "debug"},
569 {"rc", "rate control", 0, FF_OPT_TYPE_CONST, FF_DEBUG_RC, INT_MIN, INT_MAX, V|E, "debug"},
570 {"bitstream", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_BITSTREAM, INT_MIN, INT_MAX, V|D, "debug"},
571 {"mb_type", "macroblock (MB) type", 0, FF_OPT_TYPE_CONST, FF_DEBUG_MB_TYPE, INT_MIN, INT_MAX, V|D, "debug"},
572 {"qp", "per-block quantization parameter (QP)", 0, FF_OPT_TYPE_CONST, FF_DEBUG_QP, INT_MIN, INT_MAX, V|D, "debug"},
573 {"mv", "motion vector", 0, FF_OPT_TYPE_CONST, FF_DEBUG_MV, INT_MIN, INT_MAX, V|D, "debug"},
574 {"dct_coeff", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_DCT_COEFF, INT_MIN, INT_MAX, V|D, "debug"},
575 {"skip", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_SKIP, INT_MIN, INT_MAX, V|D, "debug"},
576 {"startcode", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_STARTCODE, INT_MIN, INT_MAX, V|D, "debug"},
577 {"pts", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_PTS, INT_MIN, INT_MAX, V|D, "debug"},
578 {"er", "error resilience", 0, FF_OPT_TYPE_CONST, FF_DEBUG_ER, INT_MIN, INT_MAX, V|D, "debug"},
579 {"mmco", "memory management control operations (H.264)", 0, FF_OPT_TYPE_CONST, FF_DEBUG_MMCO, INT_MIN, INT_MAX, V|D, "debug"},
580 {"bugs", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_BUGS, INT_MIN, INT_MAX, V|D, "debug"},
581 {"vis_qp", "visualize quantization parameter (QP), lower QP are tinted greener", 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_QP, INT_MIN, INT_MAX, V|D, "debug"},
582 {"vis_mb_type", "visualize block types", 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_MB_TYPE, INT_MIN, INT_MAX, V|D, "debug"},
583 {"buffers", "picture buffer allocations", 0, FF_OPT_TYPE_CONST, FF_DEBUG_BUFFERS, INT_MIN, INT_MAX, V|D, "debug"},
584 {"vismv", "visualize motion vectors (MVs)", OFFSET(debug_mv), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, V|D, "debug_mv"},
585 {"pf", "forward predicted MVs of P-frames", 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_MV_P_FOR, INT_MIN, INT_MAX, V|D, "debug_mv"},
586 {"bf", "forward predicted MVs of B-frames", 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_MV_B_FOR, INT_MIN, INT_MAX, V|D, "debug_mv"},
587 {"bb", "backward predicted MVs of B-frames", 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_MV_B_BACK, INT_MIN, INT_MAX, V|D, "debug_mv"},
588 {"mb_qmin", "obsolete, use qmin", OFFSET(mb_qmin), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
589 {"mb_qmax", "obsolete, use qmax", OFFSET(mb_qmax), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
590 {"cmp", "full pel me compare function", OFFSET(me_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
591 {"subcmp", "sub pel me compare function", OFFSET(me_sub_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
592 {"mbcmp", "macroblock compare function", OFFSET(mb_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
593 {"ildctcmp", "interlaced dct compare function", OFFSET(ildct_cmp), FF_OPT_TYPE_INT, FF_CMP_VSAD, INT_MIN, INT_MAX, V|E, "cmp_func"},
594 {"dia_size", "diamond type & size for motion estimation", OFFSET(dia_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
595 {"last_pred", "amount of motion predictors from the previous frame", OFFSET(last_predictor_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
596 {"preme", "pre motion estimation", OFFSET(pre_me), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
597 {"precmp", "pre motion estimation compare function", OFFSET(me_pre_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
598 {"sad", "sum of absolute differences, fast (default)", 0, FF_OPT_TYPE_CONST, FF_CMP_SAD, INT_MIN, INT_MAX, V|E, "cmp_func"},
599 {"sse", "sum of squared errors", 0, FF_OPT_TYPE_CONST, FF_CMP_SSE, INT_MIN, INT_MAX, V|E, "cmp_func"},
600 {"satd", "sum of absolute Hadamard transformed differences", 0, FF_OPT_TYPE_CONST, FF_CMP_SATD, INT_MIN, INT_MAX, V|E, "cmp_func"},
601 {"dct", "sum of absolute DCT transformed differences", 0, FF_OPT_TYPE_CONST, FF_CMP_DCT, INT_MIN, INT_MAX, V|E, "cmp_func"},
602 {"psnr", "sum of squared quantization errors (avoid, low quality)", 0, FF_OPT_TYPE_CONST, FF_CMP_PSNR, INT_MIN, INT_MAX, V|E, "cmp_func"},
603 {"bit", "number of bits needed for the block", 0, FF_OPT_TYPE_CONST, FF_CMP_BIT, INT_MIN, INT_MAX, V|E, "cmp_func"},
604 {"rd", "rate distortion optimal, slow", 0, FF_OPT_TYPE_CONST, FF_CMP_RD, INT_MIN, INT_MAX, V|E, "cmp_func"},
605 {"zero", "0", 0, FF_OPT_TYPE_CONST, FF_CMP_ZERO, INT_MIN, INT_MAX, V|E, "cmp_func"},
606 {"vsad", "sum of absolute vertical differences", 0, FF_OPT_TYPE_CONST, FF_CMP_VSAD, INT_MIN, INT_MAX, V|E, "cmp_func"},
607 {"vsse","sum of squared vertical differences", 0, FF_OPT_TYPE_CONST, FF_CMP_VSSE, INT_MIN, INT_MAX, V|E, "cmp_func"},
608 {"nsse", "noise preserving sum of squared differences", 0, FF_OPT_TYPE_CONST, FF_CMP_NSSE, INT_MIN, INT_MAX, V|E, "cmp_func"},
609 #ifdef CONFIG_SNOW_ENCODER
610 {"w53", "5/3 wavelet, only used in snow", 0, FF_OPT_TYPE_CONST, FF_CMP_W53, INT_MIN, INT_MAX, V|E, "cmp_func"},
611 {"w97", "9/7 wavelet, only used in snow", 0, FF_OPT_TYPE_CONST, FF_CMP_W97, INT_MIN, INT_MAX, V|E, "cmp_func"},
613 {"dctmax", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_DCTMAX, INT_MIN, INT_MAX, V|E, "cmp_func"},
614 {"chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_CHROMA, INT_MIN, INT_MAX, V|E, "cmp_func"},
615 {"pre_dia_size", "diamond type & size for motion estimation pre-pass", OFFSET(pre_dia_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
616 {"subq", "sub pel motion estimation quality", OFFSET(me_subpel_quality), FF_OPT_TYPE_INT, 8, INT_MIN, INT_MAX, V|E},
617 {"dtg_active_format", NULL, OFFSET(dtg_active_format), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
618 {"me_range", "limit motion vectors range (1023 for DivX player)", OFFSET(me_range), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
619 {"ibias", "intra quant bias", OFFSET(intra_quant_bias), FF_OPT_TYPE_INT, FF_DEFAULT_QUANT_BIAS, INT_MIN, INT_MAX, V|E},
620 {"pbias", "inter quant bias", OFFSET(inter_quant_bias), FF_OPT_TYPE_INT, FF_DEFAULT_QUANT_BIAS, INT_MIN, INT_MAX, V|E},
621 {"color_table_id", NULL, OFFSET(color_table_id), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
622 {"internal_buffer_count", NULL, OFFSET(internal_buffer_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
623 {"global_quality", NULL, OFFSET(global_quality), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
624 {"coder", NULL, OFFSET(coder_type), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "coder"},
625 {"vlc", "variable length coder / huffman coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_VLC, INT_MIN, INT_MAX, V|E, "coder"},
626 {"ac", "arithmetic coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_AC, INT_MIN, INT_MAX, V|E, "coder"},
627 {"raw", "raw (no encoding)", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_RAW, INT_MIN, INT_MAX, V|E, "coder"},
628 {"rle", "run-length coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_RLE, INT_MIN, INT_MAX, V|E, "coder"},
629 {"deflate", "deflate-based coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_DEFLATE, INT_MIN, INT_MAX, V|E, "coder"},
630 {"context", "context model", OFFSET(context_model), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
631 {"slice_flags", NULL, OFFSET(slice_flags), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
632 {"xvmc_acceleration", NULL, OFFSET(xvmc_acceleration), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
633 {"mbd", "macroblock decision algorithm (high quality mode)", OFFSET(mb_decision), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "mbd"},
634 {"simple", "use mbcmp (default)", 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_SIMPLE, INT_MIN, INT_MAX, V|E, "mbd"},
635 {"bits", "use fewest bits", 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_BITS, INT_MIN, INT_MAX, V|E, "mbd"},
636 {"rd", "use best rate distortion", 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_RD, INT_MIN, INT_MAX, V|E, "mbd"},
637 {"stream_codec_tag", NULL, OFFSET(stream_codec_tag), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
638 {"sc_threshold", "scene change threshold", OFFSET(scenechange_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
639 {"lmin", "min lagrange factor (VBR)", OFFSET(lmin), FF_OPT_TYPE_INT, 2*FF_QP2LAMBDA, 0, INT_MAX, V|E},
640 {"lmax", "max lagrange factor (VBR)", OFFSET(lmax), FF_OPT_TYPE_INT, 31*FF_QP2LAMBDA, 0, INT_MAX, V|E},
641 {"nr", "noise reduction", OFFSET(noise_reduction), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
642 {"rc_init_occupancy", "number of bits which should be loaded into the rc buffer before decoding starts", OFFSET(rc_initial_buffer_occupancy), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
643 {"inter_threshold", NULL, OFFSET(inter_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
644 {"flags2", NULL, OFFSET(flags2), FF_OPT_TYPE_FLAGS, CODEC_FLAG2_FASTPSKIP|CODEC_FLAG2_BIT_RESERVOIR, 0, UINT_MAX, V|A|E|D, "flags2"},
645 {"error", NULL, OFFSET(error_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
646 {"antialias", "MP3 antialias algorithm", OFFSET(antialias_algo), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D, "aa"},
647 {"auto", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_AUTO, INT_MIN, INT_MAX, V|D, "aa"},
648 {"fastint", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_FASTINT, INT_MIN, INT_MAX, V|D, "aa"},
649 {"int", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_INT, INT_MIN, INT_MAX, V|D, "aa"},
650 {"float", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_FLOAT, INT_MIN, INT_MAX, V|D, "aa"},
651 {"qns", "quantizer noise shaping", OFFSET(quantizer_noise_shaping), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
652 {"threads", NULL, OFFSET(thread_count), FF_OPT_TYPE_INT, 1, INT_MIN, INT_MAX, V|E|D},
653 {"me_threshold", "motion estimaton threshold", OFFSET(me_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
654 {"mb_threshold", "macroblock threshold", OFFSET(mb_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
655 {"dc", "intra_dc_precision", OFFSET(intra_dc_precision), FF_OPT_TYPE_INT, 0, INT_MIN, INT_MAX, V|E},
656 {"nssew", "nsse weight", OFFSET(nsse_weight), FF_OPT_TYPE_INT, 8, INT_MIN, INT_MAX, V|E},
657 {"skip_top", "number of macroblock rows at the top which are skipped", OFFSET(skip_top), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D},
658 {"skip_bottom", "number of macroblock rows at the bottom which are skipped", OFFSET(skip_bottom), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D},
659 {"profile", NULL, OFFSET(profile), FF_OPT_TYPE_INT, FF_PROFILE_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "profile"},
660 {"unknown", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "profile"},
661 {"aac_main", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_AAC_MAIN, INT_MIN, INT_MAX, A|E, "profile"},
662 {"aac_low", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_AAC_LOW, INT_MIN, INT_MAX, A|E, "profile"},
663 {"aac_ssr", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_AAC_SSR, INT_MIN, INT_MAX, A|E, "profile"},
664 {"aac_ltp", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_AAC_LTP, INT_MIN, INT_MAX, A|E, "profile"},
665 {"level", NULL, OFFSET(level), FF_OPT_TYPE_INT, FF_LEVEL_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "level"},
666 {"unknown", NULL, 0, FF_OPT_TYPE_CONST, FF_LEVEL_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "level"},
667 {"lowres", "decode at 1= 1/2, 2=1/4, 3=1/8 resolutions", OFFSET(lowres), FF_OPT_TYPE_INT, 0, 0, INT_MAX, V|D},
668 {"skip_threshold", "frame skip threshold", OFFSET(frame_skip_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
669 {"skip_factor", "frame skip factor", OFFSET(frame_skip_factor), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
670 {"skip_exp", "frame skip exponent", OFFSET(frame_skip_exp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
671 {"skipcmp", "frame skip compare function", OFFSET(frame_skip_cmp), FF_OPT_TYPE_INT, FF_CMP_DCTMAX, INT_MIN, INT_MAX, V|E, "cmp_func"},
672 {"border_mask", "increases the quantizer for macroblocks close to borders", OFFSET(border_masking), FF_OPT_TYPE_FLOAT, DEFAULT, -FLT_MAX, FLT_MAX, V|E},
673 {"mblmin", "min macroblock lagrange factor (VBR)", OFFSET(mb_lmin), FF_OPT_TYPE_INT, FF_QP2LAMBDA * 2, 1, FF_LAMBDA_MAX, V|E},
674 {"mblmax", "max macroblock lagrange factor (VBR)", OFFSET(mb_lmax), FF_OPT_TYPE_INT, FF_QP2LAMBDA * 31, 1, FF_LAMBDA_MAX, V|E},
675 {"mepc", "motion estimation bitrate penalty compensation (1.0 = 256)", OFFSET(me_penalty_compensation), FF_OPT_TYPE_INT, 256, INT_MIN, INT_MAX, V|E},
676 {"skip_loop_filter", NULL, OFFSET(skip_loop_filter), FF_OPT_TYPE_INT, AVDISCARD_DEFAULT, INT_MIN, INT_MAX, V|D, "avdiscard"},
677 {"skip_idct" , NULL, OFFSET(skip_idct) , FF_OPT_TYPE_INT, AVDISCARD_DEFAULT, INT_MIN, INT_MAX, V|D, "avdiscard"},
678 {"skip_frame" , NULL, OFFSET(skip_frame) , FF_OPT_TYPE_INT, AVDISCARD_DEFAULT, INT_MIN, INT_MAX, V|D, "avdiscard"},
679 {"none" , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_NONE , INT_MIN, INT_MAX, V|D, "avdiscard"},
680 {"default" , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_DEFAULT, INT_MIN, INT_MAX, V|D, "avdiscard"},
681 {"noref" , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_NONREF , INT_MIN, INT_MAX, V|D, "avdiscard"},
682 {"bidir" , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_BIDIR , INT_MIN, INT_MAX, V|D, "avdiscard"},
683 {"nokey" , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_NONKEY , INT_MIN, INT_MAX, V|D, "avdiscard"},
684 {"all" , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_ALL , INT_MIN, INT_MAX, V|D, "avdiscard"},
685 {"bidir_refine", "refine the two motion vectors used in bidirectional macroblocks", OFFSET(bidir_refine), FF_OPT_TYPE_INT, DEFAULT, 0, 4, V|E},
686 {"brd_scale", "downscales frames for dynamic B-frame decision", OFFSET(brd_scale), FF_OPT_TYPE_INT, DEFAULT, 0, 10, V|E},
687 {"crf", "enables constant quality mode, and selects the quality (x264)", OFFSET(crf), FF_OPT_TYPE_FLOAT, DEFAULT, 0, 51, V|E},
688 {"cqp", "constant quantization parameter rate control method", OFFSET(cqp), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, V|E},
689 {"keyint_min", "minimum interval between IDR-frames (x264)", OFFSET(keyint_min), FF_OPT_TYPE_INT, 25, INT_MIN, INT_MAX, V|E},
690 {"refs", "reference frames to consider for motion compensation (Snow)", OFFSET(refs), FF_OPT_TYPE_INT, 1, INT_MIN, INT_MAX, V|E},
691 {"chromaoffset", "chroma qp offset from luma", OFFSET(chromaoffset), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
692 {"bframebias", "influences how often B-frames are used", OFFSET(bframebias), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
693 {"trellis", "rate-distortion optimal quantization", OFFSET(trellis), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|A|E},
694 {"directpred", "direct mv prediction mode - 0 (none), 1 (spatial), 2 (temporal)", OFFSET(directpred), FF_OPT_TYPE_INT, 2, INT_MIN, INT_MAX, V|E},
695 {"bpyramid", "allows B-frames to be used as references for predicting", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_BPYRAMID, INT_MIN, INT_MAX, V|E, "flags2"},
696 {"wpred", "weighted biprediction for b-frames (H.264)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_WPRED, INT_MIN, INT_MAX, V|E, "flags2"},
697 {"mixed_refs", "one reference per partition, as opposed to one reference per macroblock", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_MIXED_REFS, INT_MIN, INT_MAX, V|E, "flags2"},
698 {"dct8x8", "high profile 8x8 transform (H.264)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_8X8DCT, INT_MIN, INT_MAX, V|E, "flags2"},
699 {"fastpskip", "fast pskip (H.264)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_FASTPSKIP, INT_MIN, INT_MAX, V|E, "flags2"},
700 {"aud", "access unit delimiters (H.264)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_AUD, INT_MIN, INT_MAX, V|E, "flags2"},
701 {"brdo", "b-frame rate-distortion optimization", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_BRDO, INT_MIN, INT_MAX, V|E, "flags2"},
702 {"skiprd", "RD optimal MB level residual skipping", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_SKIP_RD, INT_MIN, INT_MAX, V|E, "flags2"},
703 {"complexityblur", "reduce fluctuations in qp (before curve compression)", OFFSET(complexityblur), FF_OPT_TYPE_FLOAT, 20.0, FLT_MIN, FLT_MAX, V|E},
704 {"deblockalpha", "in-loop deblocking filter alphac0 parameter", OFFSET(deblockalpha), FF_OPT_TYPE_INT, DEFAULT, -6, 6, V|E},
705 {"deblockbeta", "in-loop deblocking filter beta parameter", OFFSET(deblockbeta), FF_OPT_TYPE_INT, DEFAULT, -6, 6, V|E},
706 {"partitions", "macroblock subpartition sizes to consider", OFFSET(partitions), FF_OPT_TYPE_FLAGS, DEFAULT, INT_MIN, INT_MAX, V|E, "partitions"},
707 {"parti4x4", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_I4X4, INT_MIN, INT_MAX, V|E, "partitions"},
708 {"parti8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_I8X8, INT_MIN, INT_MAX, V|E, "partitions"},
709 {"partp4x4", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_P4X4, INT_MIN, INT_MAX, V|E, "partitions"},
710 {"partp8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_P8X8, INT_MIN, INT_MAX, V|E, "partitions"},
711 {"partb8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_B8X8, INT_MIN, INT_MAX, V|E, "partitions"},
712 {"sc_factor", "multiplied by qscale for each frame and added to scene_change_score", OFFSET(scenechange_factor), FF_OPT_TYPE_INT, 6, 0, INT_MAX, V|E},
713 {"mv0_threshold", NULL, OFFSET(mv0_threshold), FF_OPT_TYPE_INT, 256, 0, INT_MAX, V|E},
714 {"ivlc", "intra vlc table", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_INTRA_VLC, INT_MIN, INT_MAX, V|E, "flags2"},
715 {"b_sensitivity", "adjusts sensitivity of b_frame_strategy 1", OFFSET(b_sensitivity), FF_OPT_TYPE_INT, 40, 1, INT_MAX, V|E},
716 {"compression_level", NULL, OFFSET(compression_level), FF_OPT_TYPE_INT, FF_COMPRESSION_DEFAULT, INT_MIN, INT_MAX, V|A|E},
717 {"use_lpc", "sets whether to use LPC mode (FLAC)", OFFSET(use_lpc), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
718 {"lpc_coeff_precision", "LPC coefficient precision (FLAC)", OFFSET(lpc_coeff_precision), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, A|E},
719 {"min_prediction_order", NULL, OFFSET(min_prediction_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
720 {"max_prediction_order", NULL, OFFSET(max_prediction_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
721 {"prediction_order_method", "search method for selecting prediction order", OFFSET(prediction_order_method), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
722 {"min_partition_order", NULL, OFFSET(min_partition_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
723 {"max_partition_order", NULL, OFFSET(max_partition_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
724 {"timecode_frame_start", "GOP timecode frame start number, in non drop frame format", OFFSET(timecode_frame_start), FF_OPT_TYPE_INT, 0, 0, INT_MAX, V|E},
725 {"drop_frame_timecode", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_DROP_FRAME_TIMECODE, INT_MIN, INT_MAX, V|E, "flags2"},
726 {"non_linear_q", "use non linear quantizer", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_NON_LINEAR_QUANT, INT_MIN, INT_MAX, V|E, "flags2"},
727 {"request_channels", "set desired number of audio channels", OFFSET(request_channels), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, A|D},
728 {"drc_scale", "percentage of dynamic range compression to apply", OFFSET(drc_scale), FF_OPT_TYPE_FLOAT, 1.0, 0.0, 1.0, A|D},
729 {"reservoir", "use bit reservoir", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_BIT_RESERVOIR, INT_MIN, INT_MAX, A|E, "flags2"},
730 {"bits_per_raw_sample", NULL, OFFSET(bits_per_raw_sample), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
741 static const AVClass av_codec_context_class = { "AVCodecContext", context_to_name, options };
743 void avcodec_get_context_defaults2(AVCodecContext *s, enum CodecType codec_type){
745 memset(s, 0, sizeof(AVCodecContext));
747 s->av_class= &av_codec_context_class;
749 s->codec_type = codec_type;
750 if(codec_type == CODEC_TYPE_AUDIO)
751 flags= AV_OPT_FLAG_AUDIO_PARAM;
752 else if(codec_type == CODEC_TYPE_VIDEO)
753 flags= AV_OPT_FLAG_VIDEO_PARAM;
754 else if(codec_type == CODEC_TYPE_SUBTITLE)
755 flags= AV_OPT_FLAG_SUBTITLE_PARAM;
756 av_opt_set_defaults2(s, flags, flags);
758 s->time_base= (AVRational){0,1};
759 s->get_buffer= avcodec_default_get_buffer;
760 s->release_buffer= avcodec_default_release_buffer;
761 s->get_format= avcodec_default_get_format;
762 s->execute= avcodec_default_execute;
763 s->sample_aspect_ratio= (AVRational){0,1};
764 s->pix_fmt= PIX_FMT_NONE;
765 s->sample_fmt= SAMPLE_FMT_S16; // FIXME: set to NONE
768 s->reget_buffer= avcodec_default_reget_buffer;
771 AVCodecContext *avcodec_alloc_context2(enum CodecType codec_type){
772 AVCodecContext *avctx= av_malloc(sizeof(AVCodecContext));
774 if(avctx==NULL) return NULL;
776 avcodec_get_context_defaults2(avctx, codec_type);
781 void avcodec_get_context_defaults(AVCodecContext *s){
782 avcodec_get_context_defaults2(s, CODEC_TYPE_UNKNOWN);
785 AVCodecContext *avcodec_alloc_context(void){
786 return avcodec_alloc_context2(CODEC_TYPE_UNKNOWN);
789 void avcodec_get_frame_defaults(AVFrame *pic){
790 memset(pic, 0, sizeof(AVFrame));
792 pic->pts= AV_NOPTS_VALUE;
796 AVFrame *avcodec_alloc_frame(void){
797 AVFrame *pic= av_malloc(sizeof(AVFrame));
799 if(pic==NULL) return NULL;
801 avcodec_get_frame_defaults(pic);
806 int attribute_align_arg avcodec_open(AVCodecContext *avctx, AVCodec *codec)
810 entangled_thread_counter++;
811 if(entangled_thread_counter != 1){
812 av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
816 if(avctx->codec || !codec)
819 if (codec->priv_data_size > 0) {
820 avctx->priv_data = av_mallocz(codec->priv_data_size);
821 if (!avctx->priv_data) {
822 ret = AVERROR(ENOMEM);
826 avctx->priv_data = NULL;
829 if(avctx->coded_width && avctx->coded_height)
830 avcodec_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
831 else if(avctx->width && avctx->height)
832 avcodec_set_dimensions(avctx, avctx->width, avctx->height);
834 if((avctx->coded_width||avctx->coded_height) && avcodec_check_dimensions(avctx,avctx->coded_width,avctx->coded_height)){
835 av_freep(&avctx->priv_data);
836 ret = AVERROR(EINVAL);
840 avctx->codec = codec;
841 avctx->codec_id = codec->id;
842 avctx->frame_number = 0;
843 if(avctx->codec->init){
844 ret = avctx->codec->init(avctx);
846 av_freep(&avctx->priv_data);
853 entangled_thread_counter--;
857 int attribute_align_arg avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
858 const short *samples)
860 if(buf_size < FF_MIN_BUFFER_SIZE && 0){
861 av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
864 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || samples){
865 int ret = avctx->codec->encode(avctx, buf, buf_size, (void *)samples);
866 avctx->frame_number++;
872 int attribute_align_arg avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
875 if(buf_size < FF_MIN_BUFFER_SIZE){
876 av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
879 if(avcodec_check_dimensions(avctx,avctx->width,avctx->height))
881 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || pict){
882 int ret = avctx->codec->encode(avctx, buf, buf_size, (void *)pict);
883 avctx->frame_number++;
884 emms_c(); //needed to avoid an emms_c() call before every return;
891 int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
892 const AVSubtitle *sub)
895 ret = avctx->codec->encode(avctx, buf, buf_size, (void *)sub);
896 avctx->frame_number++;
900 int attribute_align_arg avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
901 int *got_picture_ptr,
902 const uint8_t *buf, int buf_size)
907 if((avctx->coded_width||avctx->coded_height) && avcodec_check_dimensions(avctx,avctx->coded_width,avctx->coded_height))
909 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || buf_size){
910 ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
913 emms_c(); //needed to avoid an emms_c() call before every return;
915 if (*got_picture_ptr)
916 avctx->frame_number++;
923 int attribute_align_arg avcodec_decode_audio2(AVCodecContext *avctx, int16_t *samples,
925 const uint8_t *buf, int buf_size)
929 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || buf_size){
930 //FIXME remove the check below _after_ ensuring that all audio check that the available space is enough
931 if(*frame_size_ptr < AVCODEC_MAX_AUDIO_FRAME_SIZE){
932 av_log(avctx, AV_LOG_ERROR, "buffer smaller than AVCODEC_MAX_AUDIO_FRAME_SIZE\n");
935 if(*frame_size_ptr < FF_MIN_BUFFER_SIZE ||
936 *frame_size_ptr < avctx->channels * avctx->frame_size * sizeof(int16_t)){
937 av_log(avctx, AV_LOG_ERROR, "buffer %d too small\n", *frame_size_ptr);
941 ret = avctx->codec->decode(avctx, samples, frame_size_ptr,
943 avctx->frame_number++;
951 int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
953 const uint8_t *buf, int buf_size)
958 ret = avctx->codec->decode(avctx, sub, got_sub_ptr,
961 avctx->frame_number++;
965 int avcodec_close(AVCodecContext *avctx)
967 entangled_thread_counter++;
968 if(entangled_thread_counter != 1){
969 av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
970 entangled_thread_counter--;
974 if (ENABLE_THREADS && avctx->thread_opaque)
975 avcodec_thread_free(avctx);
976 if (avctx->codec->close)
977 avctx->codec->close(avctx);
978 avcodec_default_free_buffers(avctx);
979 av_freep(&avctx->priv_data);
981 entangled_thread_counter--;
985 AVCodec *avcodec_find_encoder(enum CodecID id)
990 if (p->encode != NULL && p->id == id)
997 AVCodec *avcodec_find_encoder_by_name(const char *name)
1002 if (p->encode != NULL && strcmp(name,p->name) == 0)
1009 AVCodec *avcodec_find_decoder(enum CodecID id)
1014 if (p->decode != NULL && p->id == id)
1021 AVCodec *avcodec_find_decoder_by_name(const char *name)
1026 if (p->decode != NULL && strcmp(name,p->name) == 0)
1033 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1035 const char *codec_name;
1038 char channels_str[100];
1040 AVRational display_aspect_ratio;
1043 p = avcodec_find_encoder(enc->codec_id);
1045 p = avcodec_find_decoder(enc->codec_id);
1048 codec_name = p->name;
1049 if (!encode && enc->codec_id == CODEC_ID_MP3) {
1050 if (enc->sub_id == 2)
1052 else if (enc->sub_id == 1)
1055 } else if (enc->codec_id == CODEC_ID_MPEG2TS) {
1056 /* fake mpeg2 transport stream codec (currently not
1058 codec_name = "mpeg2ts";
1059 } else if (enc->codec_name[0] != '\0') {
1060 codec_name = enc->codec_name;
1062 /* output avi tags */
1063 if( isprint(enc->codec_tag&0xFF) && isprint((enc->codec_tag>>8)&0xFF)
1064 && isprint((enc->codec_tag>>16)&0xFF) && isprint((enc->codec_tag>>24)&0xFF)){
1065 snprintf(buf1, sizeof(buf1), "%c%c%c%c / 0x%04X",
1066 enc->codec_tag & 0xff,
1067 (enc->codec_tag >> 8) & 0xff,
1068 (enc->codec_tag >> 16) & 0xff,
1069 (enc->codec_tag >> 24) & 0xff,
1072 snprintf(buf1, sizeof(buf1), "0x%04x", enc->codec_tag);
1077 switch(enc->codec_type) {
1078 case CODEC_TYPE_VIDEO:
1079 snprintf(buf, buf_size,
1081 codec_name, enc->mb_decision ? " (hq)" : "");
1082 if (enc->pix_fmt != PIX_FMT_NONE) {
1083 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1085 avcodec_get_pix_fmt_name(enc->pix_fmt));
1088 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1090 enc->width, enc->height);
1091 if (enc->sample_aspect_ratio.num) {
1092 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
1093 enc->width*enc->sample_aspect_ratio.num,
1094 enc->height*enc->sample_aspect_ratio.den,
1096 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1097 " [PAR %d:%d DAR %d:%d]",
1098 enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
1099 display_aspect_ratio.num, display_aspect_ratio.den);
1101 if(av_log_get_level() >= AV_LOG_DEBUG){
1102 int g= ff_gcd(enc->time_base.num, enc->time_base.den);
1103 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1105 enc->time_base.num/g, enc->time_base.den/g);
1109 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1110 ", q=%d-%d", enc->qmin, enc->qmax);
1112 bitrate = enc->bit_rate;
1114 case CODEC_TYPE_AUDIO:
1115 snprintf(buf, buf_size,
1118 switch (enc->channels) {
1120 strcpy(channels_str, "mono");
1123 strcpy(channels_str, "stereo");
1126 strcpy(channels_str, "5:1");
1129 snprintf(channels_str, sizeof(channels_str), "%d channels", enc->channels);
1132 if (enc->sample_rate) {
1133 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1138 if (enc->sample_fmt != SAMPLE_FMT_NONE) {
1139 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1140 ", %s", avcodec_get_sample_fmt_name(enc->sample_fmt));
1143 /* for PCM codecs, compute bitrate directly */
1144 switch(enc->codec_id) {
1145 case CODEC_ID_PCM_F64BE:
1146 case CODEC_ID_PCM_F64LE:
1147 bitrate = enc->sample_rate * enc->channels * 64;
1149 case CODEC_ID_PCM_S32LE:
1150 case CODEC_ID_PCM_S32BE:
1151 case CODEC_ID_PCM_U32LE:
1152 case CODEC_ID_PCM_U32BE:
1153 case CODEC_ID_PCM_F32BE:
1154 case CODEC_ID_PCM_F32LE:
1155 bitrate = enc->sample_rate * enc->channels * 32;
1157 case CODEC_ID_PCM_S24LE:
1158 case CODEC_ID_PCM_S24BE:
1159 case CODEC_ID_PCM_U24LE:
1160 case CODEC_ID_PCM_U24BE:
1161 case CODEC_ID_PCM_S24DAUD:
1162 bitrate = enc->sample_rate * enc->channels * 24;
1164 case CODEC_ID_PCM_S16LE:
1165 case CODEC_ID_PCM_S16BE:
1166 case CODEC_ID_PCM_S16LE_PLANAR:
1167 case CODEC_ID_PCM_U16LE:
1168 case CODEC_ID_PCM_U16BE:
1169 bitrate = enc->sample_rate * enc->channels * 16;
1171 case CODEC_ID_PCM_S8:
1172 case CODEC_ID_PCM_U8:
1173 case CODEC_ID_PCM_ALAW:
1174 case CODEC_ID_PCM_MULAW:
1175 case CODEC_ID_PCM_ZORK:
1176 bitrate = enc->sample_rate * enc->channels * 8;
1179 bitrate = enc->bit_rate;
1183 case CODEC_TYPE_DATA:
1184 snprintf(buf, buf_size, "Data: %s", codec_name);
1185 bitrate = enc->bit_rate;
1187 case CODEC_TYPE_SUBTITLE:
1188 snprintf(buf, buf_size, "Subtitle: %s", codec_name);
1189 bitrate = enc->bit_rate;
1191 case CODEC_TYPE_ATTACHMENT:
1192 snprintf(buf, buf_size, "Attachment: %s", codec_name);
1193 bitrate = enc->bit_rate;
1196 snprintf(buf, buf_size, "Invalid Codec type %d", enc->codec_type);
1200 if (enc->flags & CODEC_FLAG_PASS1)
1201 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1203 if (enc->flags & CODEC_FLAG_PASS2)
1204 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1208 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1209 ", %d kb/s", bitrate / 1000);
1213 unsigned avcodec_version( void )
1215 return LIBAVCODEC_VERSION_INT;
1218 void avcodec_init(void)
1220 static int initialized = 0;
1222 if (initialized != 0)
1226 dsputil_static_init();
1229 void avcodec_flush_buffers(AVCodecContext *avctx)
1231 if(avctx->codec->flush)
1232 avctx->codec->flush(avctx);
1235 void avcodec_default_free_buffers(AVCodecContext *s){
1238 if(s->internal_buffer==NULL) return;
1240 for(i=0; i<INTERNAL_BUFFER_SIZE; i++){
1241 InternalBuffer *buf= &((InternalBuffer*)s->internal_buffer)[i];
1243 av_freep(&buf->base[j]);
1247 av_freep(&s->internal_buffer);
1249 s->internal_buffer_count=0;
1252 char av_get_pict_type_char(int pict_type){
1254 case FF_I_TYPE: return 'I';
1255 case FF_P_TYPE: return 'P';
1256 case FF_B_TYPE: return 'B';
1257 case FF_S_TYPE: return 'S';
1258 case FF_SI_TYPE:return 'i';
1259 case FF_SP_TYPE:return 'p';
1260 case FF_BI_TYPE:return 'b';
1261 default: return '?';
1265 int av_get_bits_per_sample(enum CodecID codec_id){
1267 case CODEC_ID_ADPCM_SBPRO_2:
1269 case CODEC_ID_ADPCM_SBPRO_3:
1271 case CODEC_ID_ADPCM_SBPRO_4:
1272 case CODEC_ID_ADPCM_CT:
1274 case CODEC_ID_PCM_ALAW:
1275 case CODEC_ID_PCM_MULAW:
1276 case CODEC_ID_PCM_S8:
1277 case CODEC_ID_PCM_U8:
1278 case CODEC_ID_PCM_ZORK:
1280 case CODEC_ID_PCM_S16BE:
1281 case CODEC_ID_PCM_S16LE:
1282 case CODEC_ID_PCM_S16LE_PLANAR:
1283 case CODEC_ID_PCM_U16BE:
1284 case CODEC_ID_PCM_U16LE:
1286 case CODEC_ID_PCM_S24DAUD:
1287 case CODEC_ID_PCM_S24BE:
1288 case CODEC_ID_PCM_S24LE:
1289 case CODEC_ID_PCM_U24BE:
1290 case CODEC_ID_PCM_U24LE:
1292 case CODEC_ID_PCM_S32BE:
1293 case CODEC_ID_PCM_S32LE:
1294 case CODEC_ID_PCM_U32BE:
1295 case CODEC_ID_PCM_U32LE:
1296 case CODEC_ID_PCM_F32BE:
1297 case CODEC_ID_PCM_F32LE:
1299 case CODEC_ID_PCM_F64BE:
1300 case CODEC_ID_PCM_F64LE:
1307 int av_get_bits_per_sample_format(enum SampleFormat sample_fmt) {
1308 switch (sample_fmt) {
1311 case SAMPLE_FMT_S16:
1313 case SAMPLE_FMT_S32:
1314 case SAMPLE_FMT_FLT:
1316 case SAMPLE_FMT_DBL:
1323 #if !defined(HAVE_THREADS)
1324 int avcodec_thread_init(AVCodecContext *s, int thread_count){
1329 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1343 /* Wrapper to work around the lack of mkstemp() on mingw/cygin.
1344 * Also, tries to create file in /tmp first, if possible.
1345 * *prefix can be a character constant; *filename will be allocated internally.
1346 * Returns file descriptor of opened file (or -1 on error)
1347 * and opened file name in **filename. */
1348 int av_tempfile(char *prefix, char **filename) {
1350 #if !defined(HAVE_MKSTEMP)
1351 *filename = tempnam(".", prefix);
1353 size_t len = strlen(prefix) + 12; /* room for "/tmp/" and "XXXXXX\0" */
1354 *filename = av_malloc(len);
1356 /* -----common section-----*/
1357 if (*filename == NULL) {
1358 av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot allocate file name\n");
1361 #if !defined(HAVE_MKSTEMP)
1362 fd = open(*filename, O_RDWR | O_BINARY | O_CREAT, 0444);
1364 snprintf(*filename, len, "/tmp/%sXXXXXX", prefix);
1365 fd = mkstemp(*filename);
1367 snprintf(*filename, len, "./%sXXXXXX", prefix);
1368 fd = mkstemp(*filename);
1371 /* -----common section-----*/
1373 av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot open temporary file %s\n", *filename);
1376 return fd; /* success */
1382 } VideoFrameSizeAbbr;
1386 int rate_num, rate_den;
1387 } VideoFrameRateAbbr;
1389 static const VideoFrameSizeAbbr video_frame_size_abbrs[] = {
1390 { "ntsc", 720, 480 },
1391 { "pal", 720, 576 },
1392 { "qntsc", 352, 240 }, /* VCD compliant NTSC */
1393 { "qpal", 352, 288 }, /* VCD compliant PAL */
1394 { "sntsc", 640, 480 }, /* square pixel NTSC */
1395 { "spal", 768, 576 }, /* square pixel PAL */
1396 { "film", 352, 240 },
1397 { "ntsc-film", 352, 240 },
1398 { "sqcif", 128, 96 },
1399 { "qcif", 176, 144 },
1400 { "cif", 352, 288 },
1401 { "4cif", 704, 576 },
1402 { "qqvga", 160, 120 },
1403 { "qvga", 320, 240 },
1404 { "vga", 640, 480 },
1405 { "svga", 800, 600 },
1406 { "xga", 1024, 768 },
1407 { "uxga", 1600,1200 },
1408 { "qxga", 2048,1536 },
1409 { "sxga", 1280,1024 },
1410 { "qsxga", 2560,2048 },
1411 { "hsxga", 5120,4096 },
1412 { "wvga", 852, 480 },
1413 { "wxga", 1366, 768 },
1414 { "wsxga", 1600,1024 },
1415 { "wuxga", 1920,1200 },
1416 { "woxga", 2560,1600 },
1417 { "wqsxga", 3200,2048 },
1418 { "wquxga", 3840,2400 },
1419 { "whsxga", 6400,4096 },
1420 { "whuxga", 7680,4800 },
1421 { "cga", 320, 200 },
1422 { "ega", 640, 350 },
1423 { "hd480", 852, 480 },
1424 { "hd720", 1280, 720 },
1425 { "hd1080", 1920,1080 },
1428 static const VideoFrameRateAbbr video_frame_rate_abbrs[]= {
1429 { "ntsc", 30000, 1001 },
1431 { "qntsc", 30000, 1001 }, /* VCD compliant NTSC */
1432 { "qpal", 25, 1 }, /* VCD compliant PAL */
1433 { "sntsc", 30000, 1001 }, /* square pixel NTSC */
1434 { "spal", 25, 1 }, /* square pixel PAL */
1436 { "ntsc-film", 24000, 1001 },
1439 int av_parse_video_frame_size(int *width_ptr, int *height_ptr, const char *str)
1442 int n = sizeof(video_frame_size_abbrs) / sizeof(VideoFrameSizeAbbr);
1444 int frame_width = 0, frame_height = 0;
1447 if (!strcmp(video_frame_size_abbrs[i].abbr, str)) {
1448 frame_width = video_frame_size_abbrs[i].width;
1449 frame_height = video_frame_size_abbrs[i].height;
1455 frame_width = strtol(p, (char **)&p, 10);
1458 frame_height = strtol(p, (char **)&p, 10);
1460 if (frame_width <= 0 || frame_height <= 0)
1462 *width_ptr = frame_width;
1463 *height_ptr = frame_height;
1467 int av_parse_video_frame_rate(AVRational *frame_rate, const char *arg)
1470 int n = sizeof(video_frame_rate_abbrs) / sizeof(VideoFrameRateAbbr);
1473 /* First, we check our abbreviation table */
1474 for (i = 0; i < n; ++i)
1475 if (!strcmp(video_frame_rate_abbrs[i].abbr, arg)) {
1476 frame_rate->num = video_frame_rate_abbrs[i].rate_num;
1477 frame_rate->den = video_frame_rate_abbrs[i].rate_den;
1481 /* Then, we try to parse it as fraction */
1482 cp = strchr(arg, '/');
1484 cp = strchr(arg, ':');
1487 frame_rate->num = strtol(arg, &cpp, 10);
1488 if (cpp != arg || cpp == cp)
1489 frame_rate->den = strtol(cp+1, &cpp, 10);
1491 frame_rate->num = 0;
1494 /* Finally we give up and parse it as double */
1495 AVRational time_base = av_d2q(strtod(arg, 0), DEFAULT_FRAME_RATE_BASE);
1496 frame_rate->den = time_base.den;
1497 frame_rate->num = time_base.num;
1499 if (!frame_rate->num || !frame_rate->den)
1505 void av_log_missing_feature(void *avc, const char *feature, int want_sample)
1507 av_log(avc, AV_LOG_WARNING, "%s not implemented. Update your FFmpeg "
1508 "version to the newest one from SVN. If the problem still "
1509 "occurs, it means that your file has a feature which has not "
1510 "been implemented.", feature);
1512 av_log(avc, AV_LOG_WARNING, " If you want to help, upload a sample "
1513 "of this file to ftp://upload.mplayerhq.hu/MPlayer/incoming/ "
1514 "and contact the FFmpeg-devel mailing list.");
1515 av_log(avc, AV_LOG_WARNING, "\n");