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 600
31 #include "libavutil/avstring.h"
32 #include "libavutil/integer.h"
33 #include "libavutil/crc.h"
37 #include "imgconvert.h"
38 #include "audioconvert.h"
43 #if !defined(HAVE_MKSTEMP)
47 const uint8_t ff_reverse[256]={
48 0x00,0x80,0x40,0xC0,0x20,0xA0,0x60,0xE0,0x10,0x90,0x50,0xD0,0x30,0xB0,0x70,0xF0,
49 0x08,0x88,0x48,0xC8,0x28,0xA8,0x68,0xE8,0x18,0x98,0x58,0xD8,0x38,0xB8,0x78,0xF8,
50 0x04,0x84,0x44,0xC4,0x24,0xA4,0x64,0xE4,0x14,0x94,0x54,0xD4,0x34,0xB4,0x74,0xF4,
51 0x0C,0x8C,0x4C,0xCC,0x2C,0xAC,0x6C,0xEC,0x1C,0x9C,0x5C,0xDC,0x3C,0xBC,0x7C,0xFC,
52 0x02,0x82,0x42,0xC2,0x22,0xA2,0x62,0xE2,0x12,0x92,0x52,0xD2,0x32,0xB2,0x72,0xF2,
53 0x0A,0x8A,0x4A,0xCA,0x2A,0xAA,0x6A,0xEA,0x1A,0x9A,0x5A,0xDA,0x3A,0xBA,0x7A,0xFA,
54 0x06,0x86,0x46,0xC6,0x26,0xA6,0x66,0xE6,0x16,0x96,0x56,0xD6,0x36,0xB6,0x76,0xF6,
55 0x0E,0x8E,0x4E,0xCE,0x2E,0xAE,0x6E,0xEE,0x1E,0x9E,0x5E,0xDE,0x3E,0xBE,0x7E,0xFE,
56 0x01,0x81,0x41,0xC1,0x21,0xA1,0x61,0xE1,0x11,0x91,0x51,0xD1,0x31,0xB1,0x71,0xF1,
57 0x09,0x89,0x49,0xC9,0x29,0xA9,0x69,0xE9,0x19,0x99,0x59,0xD9,0x39,0xB9,0x79,0xF9,
58 0x05,0x85,0x45,0xC5,0x25,0xA5,0x65,0xE5,0x15,0x95,0x55,0xD5,0x35,0xB5,0x75,0xF5,
59 0x0D,0x8D,0x4D,0xCD,0x2D,0xAD,0x6D,0xED,0x1D,0x9D,0x5D,0xDD,0x3D,0xBD,0x7D,0xFD,
60 0x03,0x83,0x43,0xC3,0x23,0xA3,0x63,0xE3,0x13,0x93,0x53,0xD3,0x33,0xB3,0x73,0xF3,
61 0x0B,0x8B,0x4B,0xCB,0x2B,0xAB,0x6B,0xEB,0x1B,0x9B,0x5B,0xDB,0x3B,0xBB,0x7B,0xFB,
62 0x07,0x87,0x47,0xC7,0x27,0xA7,0x67,0xE7,0x17,0x97,0x57,0xD7,0x37,0xB7,0x77,0xF7,
63 0x0F,0x8F,0x4F,0xCF,0x2F,0xAF,0x6F,0xEF,0x1F,0x9F,0x5F,0xDF,0x3F,0xBF,0x7F,0xFF,
66 static int volatile entangled_thread_counter=0;
68 void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size)
73 *size= FFMAX(17*min_size/16 + 32, min_size);
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
82 /* encoder management */
83 static AVCodec *first_avcodec = NULL;
85 AVCodec *av_codec_next(AVCodec *c){
87 else return first_avcodec;
90 void register_avcodec(AVCodec *format)
94 while (*p != NULL) p = &(*p)->next;
99 void avcodec_set_dimensions(AVCodecContext *s, int width, int height){
100 s->coded_width = width;
101 s->coded_height= height;
102 s->width = -((-width )>>s->lowres);
103 s->height= -((-height)>>s->lowres);
106 typedef struct InternalBuffer{
112 enum PixelFormat pix_fmt;
115 #define INTERNAL_BUFFER_SIZE 32
117 #define ALIGN(x, a) (((x)+(a)-1)&~((a)-1))
119 void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height){
124 case PIX_FMT_YUV420P:
125 case PIX_FMT_YUYV422:
126 case PIX_FMT_UYVY422:
127 case PIX_FMT_YUV422P:
128 case PIX_FMT_YUV444P:
130 case PIX_FMT_GRAY16BE:
131 case PIX_FMT_GRAY16LE:
132 case PIX_FMT_YUVJ420P:
133 case PIX_FMT_YUVJ422P:
134 case PIX_FMT_YUVJ444P:
135 case PIX_FMT_YUVA420P:
136 w_align= 16; //FIXME check for non mpeg style codecs and use less alignment
139 case PIX_FMT_YUV411P:
140 case PIX_FMT_UYYVYY411:
144 case PIX_FMT_YUV410P:
145 if(s->codec_id == CODEC_ID_SVQ1){
150 if(s->codec_id == CODEC_ID_RPZA){
155 if(s->codec_id == CODEC_ID_SMC){
161 if((s->codec_id == CODEC_ID_MSZH) || (s->codec_id == CODEC_ID_ZLIB)){
172 *width = ALIGN(*width , w_align);
173 *height= ALIGN(*height, h_align);
174 if(s->codec_id == CODEC_ID_H264)
175 *height+=2; // some of the optimized chroma MC reads one line too much
178 int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h){
179 if((int)w>0 && (int)h>0 && (w+128)*(uint64_t)(h+128) < INT_MAX/4)
182 av_log(av_log_ctx, AV_LOG_ERROR, "picture size invalid (%ux%u)\n", w, h);
186 int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic){
193 if(pic->data[0]!=NULL) {
194 av_log(s, AV_LOG_ERROR, "pic->data[0]!=NULL in avcodec_default_get_buffer\n");
197 if(s->internal_buffer_count >= INTERNAL_BUFFER_SIZE) {
198 av_log(s, AV_LOG_ERROR, "internal_buffer_count overflow (missing release_buffer?)\n");
202 if(avcodec_check_dimensions(s,w,h))
205 if(s->internal_buffer==NULL){
206 s->internal_buffer= av_mallocz((INTERNAL_BUFFER_SIZE+1)*sizeof(InternalBuffer));
209 s->internal_buffer= av_fast_realloc(
211 &s->internal_buffer_size,
212 sizeof(InternalBuffer)*FFMAX(99, s->internal_buffer_count+1)/*FIXME*/
216 buf= &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count];
217 picture_number= &(((InternalBuffer*)s->internal_buffer)[INTERNAL_BUFFER_SIZE]).last_pic_num; //FIXME ugly hack
220 if(buf->base[0] && (buf->width != w || buf->height != h || buf->pix_fmt != s->pix_fmt)){
222 av_freep(&buf->base[i]);
228 pic->age= *picture_number - buf->last_pic_num;
229 buf->last_pic_num= *picture_number;
231 int h_chroma_shift, v_chroma_shift;
237 avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
239 avcodec_align_dimensions(s, &w, &h);
241 if(!(s->flags&CODEC_FLAG_EMU_EDGE)){
246 ff_fill_linesize(&picture, s->pix_fmt, w);
249 //STRIDE_ALIGN is 8 for SSE* but this does not work for SVQ1 chroma planes
250 //we could change STRIDE_ALIGN to 16 for x86/sse but it would increase the
251 //picture size unneccessarily in some cases. The solution here is not
252 //pretty and better ideas are welcome!
254 if(s->codec_id == CODEC_ID_SVQ1)
258 stride_align[i] = STRIDE_ALIGN;
259 picture.linesize[i] = ALIGN(picture.linesize[i], stride_align[i]);
262 tmpsize = ff_fill_pointer(&picture, NULL, s->pix_fmt, h);
264 for (i=0; i<3 && picture.data[i+1]; i++)
265 size[i] = picture.data[i+1] - picture.data[i];
266 size[i] = tmpsize - (picture.data[i] - picture.data[0]);
268 buf->last_pic_num= -256*256*256*64;
269 memset(buf->base, 0, sizeof(buf->base));
270 memset(buf->data, 0, sizeof(buf->data));
272 for(i=0; i<4 && size[i]; i++){
273 const int h_shift= i==0 ? 0 : h_chroma_shift;
274 const int v_shift= i==0 ? 0 : v_chroma_shift;
276 buf->linesize[i]= picture.linesize[i];
278 buf->base[i]= av_malloc(size[i]+16); //FIXME 16
279 if(buf->base[i]==NULL) return -1;
280 memset(buf->base[i], 128, size[i]);
282 // no edge if EDEG EMU or not planar YUV, we check for PAL8 redundantly to protect against a exploitable bug regression ...
283 if((s->flags&CODEC_FLAG_EMU_EDGE) || (s->pix_fmt == PIX_FMT_PAL8) || !size[2])
284 buf->data[i] = buf->base[i];
286 buf->data[i] = buf->base[i] + ALIGN((buf->linesize[i]*EDGE_WIDTH>>v_shift) + (EDGE_WIDTH>>h_shift), stride_align[i]);
288 buf->width = s->width;
289 buf->height = s->height;
290 buf->pix_fmt= s->pix_fmt;
291 pic->age= 256*256*256*64;
293 pic->type= FF_BUFFER_TYPE_INTERNAL;
296 pic->base[i]= buf->base[i];
297 pic->data[i]= buf->data[i];
298 pic->linesize[i]= buf->linesize[i];
300 s->internal_buffer_count++;
302 pic->reordered_opaque= s->reordered_opaque;
304 if(s->debug&FF_DEBUG_BUFFERS)
305 av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p, %d buffers used\n", pic, s->internal_buffer_count);
310 void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic){
312 InternalBuffer *buf, *last;
314 assert(pic->type==FF_BUFFER_TYPE_INTERNAL);
315 assert(s->internal_buffer_count);
317 buf = NULL; /* avoids warning */
318 for(i=0; i<s->internal_buffer_count; i++){ //just 3-5 checks so is not worth to optimize
319 buf= &((InternalBuffer*)s->internal_buffer)[i];
320 if(buf->data[0] == pic->data[0])
323 assert(i < s->internal_buffer_count);
324 s->internal_buffer_count--;
325 last = &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count];
327 FFSWAP(InternalBuffer, *buf, *last);
331 // pic->base[i]=NULL;
333 //printf("R%X\n", pic->opaque);
335 if(s->debug&FF_DEBUG_BUFFERS)
336 av_log(s, AV_LOG_DEBUG, "default_release_buffer called on pic %p, %d buffers used\n", pic, s->internal_buffer_count);
339 int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic){
343 /* If no picture return a new buffer */
344 if(pic->data[0] == NULL) {
345 /* We will copy from buffer, so must be readable */
346 pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
347 return s->get_buffer(s, pic);
350 /* If internal buffer type return the same buffer */
351 if(pic->type == FF_BUFFER_TYPE_INTERNAL)
355 * Not internal type and reget_buffer not overridden, emulate cr buffer
358 for(i = 0; i < 4; i++)
359 pic->data[i] = pic->base[i] = NULL;
361 /* Allocate new frame */
362 if (s->get_buffer(s, pic))
364 /* Copy image data from old buffer to new buffer */
365 av_picture_copy((AVPicture*)pic, (AVPicture*)&temp_pic, s->pix_fmt, s->width,
367 s->release_buffer(s, &temp_pic); // Release old frame
371 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count){
374 for(i=0; i<count; i++){
375 int r= func(c, arg[i]);
381 enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt){
385 static const char* context_to_name(void* ptr) {
386 AVCodecContext *avc= ptr;
388 if(avc && avc->codec && avc->codec->name)
389 return avc->codec->name;
394 #define OFFSET(x) offsetof(AVCodecContext,x)
395 #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
396 //these names are too long to be readable
397 #define V AV_OPT_FLAG_VIDEO_PARAM
398 #define A AV_OPT_FLAG_AUDIO_PARAM
399 #define S AV_OPT_FLAG_SUBTITLE_PARAM
400 #define E AV_OPT_FLAG_ENCODING_PARAM
401 #define D AV_OPT_FLAG_DECODING_PARAM
403 #define AV_CODEC_DEFAULT_BITRATE 200*1000
405 static const AVOption options[]={
406 {"b", "set bitrate (in bits/s)", OFFSET(bit_rate), FF_OPT_TYPE_INT, AV_CODEC_DEFAULT_BITRATE, INT_MIN, INT_MAX, V|E},
407 {"ab", "set bitrate (in bits/s)", OFFSET(bit_rate), FF_OPT_TYPE_INT, 64*1000, INT_MIN, INT_MAX, A|E},
408 {"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},
409 {"flags", NULL, OFFSET(flags), FF_OPT_TYPE_FLAGS, DEFAULT, 0, UINT_MAX, V|A|E|D, "flags"},
410 {"mv4", "use four motion vector by macroblock (mpeg4)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_4MV, INT_MIN, INT_MAX, V|E, "flags"},
411 {"obmc", "use overlapped block motion compensation (h263+)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_OBMC, INT_MIN, INT_MAX, V|E, "flags"},
412 {"qpel", "use 1/4 pel motion compensation", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_QPEL, INT_MIN, INT_MAX, V|E, "flags"},
413 {"loop", "use loop filter", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_LOOP_FILTER, INT_MIN, INT_MAX, V|E, "flags"},
414 {"qscale", "use fixed qscale", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_QSCALE, INT_MIN, INT_MAX, 0, "flags"},
415 {"gmc", "use gmc", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_GMC, INT_MIN, INT_MAX, V|E, "flags"},
416 {"mv0", "always try a mb with mv=<0,0>", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_MV0, INT_MIN, INT_MAX, V|E, "flags"},
417 {"part", "use data partitioning", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PART, INT_MIN, INT_MAX, V|E, "flags"},
418 {"input_preserved", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG_INPUT_PRESERVED, INT_MIN, INT_MAX, 0, "flags"},
419 {"pass1", "use internal 2pass ratecontrol in first pass mode", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PASS1, INT_MIN, INT_MAX, 0, "flags"},
420 {"pass2", "use internal 2pass ratecontrol in second pass mode", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PASS2, INT_MIN, INT_MAX, 0, "flags"},
421 {"extern_huff", "use external huffman table (for mjpeg)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_EXTERN_HUFF, INT_MIN, INT_MAX, 0, "flags"},
422 {"gray", "only decode/encode grayscale", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_GRAY, INT_MIN, INT_MAX, V|E|D, "flags"},
423 {"emu_edge", "don't draw edges", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_EMU_EDGE, INT_MIN, INT_MAX, 0, "flags"},
424 {"psnr", "error[?] variables will be set during encoding", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PSNR, INT_MIN, INT_MAX, V|E, "flags"},
425 {"truncated", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG_TRUNCATED, INT_MIN, INT_MAX, 0, "flags"},
426 {"naq", "normalize adaptive quantization", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_NORMALIZE_AQP, INT_MIN, INT_MAX, V|E, "flags"},
427 {"ildct", "use interlaced dct", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_INTERLACED_DCT, INT_MIN, INT_MAX, V|E, "flags"},
428 {"low_delay", "force low delay", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_LOW_DELAY, INT_MIN, INT_MAX, V|D|E, "flags"},
429 {"alt", "enable alternate scantable (mpeg2/mpeg4)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_ALT_SCAN, INT_MIN, INT_MAX, V|E, "flags"},
430 {"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"},
431 {"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"},
432 {"aic", "h263 advanced intra coding / mpeg4 ac prediction", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_AC_PRED, INT_MIN, INT_MAX, V|E, "flags"},
433 {"umv", "use unlimited motion vectors", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_H263P_UMV, INT_MIN, INT_MAX, V|E, "flags"},
434 {"cbp", "use rate distortion optimization for cbp", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_CBP_RD, INT_MIN, INT_MAX, V|E, "flags"},
435 {"qprd", "use rate distortion optimization for qp selection", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_QP_RD, INT_MIN, INT_MAX, V|E, "flags"},
436 {"aiv", "h263 alternative inter vlc", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_H263P_AIV, INT_MIN, INT_MAX, V|E, "flags"},
437 {"slice", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG_H263P_SLICE_STRUCT, INT_MIN, INT_MAX, V|E, "flags"},
438 {"ilme", "interlaced motion estimation", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_INTERLACED_ME, INT_MIN, INT_MAX, V|E, "flags"},
439 {"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"},
440 {"cgop", "closed gop", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_CLOSED_GOP, INT_MIN, INT_MAX, V|E, "flags"},
441 {"fast", "allow non spec compliant speedup tricks", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_FAST, INT_MIN, INT_MAX, V|E, "flags2"},
442 {"sgop", "strictly enforce gop size", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_STRICT_GOP, INT_MIN, INT_MAX, V|E, "flags2"},
443 {"noout", "skip bitstream encoding", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_NO_OUTPUT, INT_MIN, INT_MAX, V|E, "flags2"},
444 {"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"},
445 {"sub_id", NULL, OFFSET(sub_id), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
446 {"me_method", "set motion estimation method", OFFSET(me_method), FF_OPT_TYPE_INT, ME_EPZS, INT_MIN, INT_MAX, V|E, "me_method"},
447 {"zero", "zero motion estimation (fastest)", 0, FF_OPT_TYPE_CONST, ME_ZERO, INT_MIN, INT_MAX, V|E, "me_method" },
448 {"full", "full motion estimation (slowest)", 0, FF_OPT_TYPE_CONST, ME_FULL, INT_MIN, INT_MAX, V|E, "me_method" },
449 {"epzs", "EPZS motion estimation (default)", 0, FF_OPT_TYPE_CONST, ME_EPZS, INT_MIN, INT_MAX, V|E, "me_method" },
450 {"esa", "esa motion estimation (alias for full)", 0, FF_OPT_TYPE_CONST, ME_FULL, INT_MIN, INT_MAX, V|E, "me_method" },
451 {"tesa", "tesa motion estimation", 0, FF_OPT_TYPE_CONST, ME_TESA, INT_MIN, INT_MAX, V|E, "me_method" },
452 {"dia", "dia motion estimation (alias for epzs)", 0, FF_OPT_TYPE_CONST, ME_EPZS, INT_MIN, INT_MAX, V|E, "me_method" },
453 {"log", "log motion estimation", 0, FF_OPT_TYPE_CONST, ME_LOG, INT_MIN, INT_MAX, V|E, "me_method" },
454 {"phods", "phods motion estimation", 0, FF_OPT_TYPE_CONST, ME_PHODS, INT_MIN, INT_MAX, V|E, "me_method" },
455 {"x1", "X1 motion estimation", 0, FF_OPT_TYPE_CONST, ME_X1, INT_MIN, INT_MAX, V|E, "me_method" },
456 {"hex", "hex motion estimation", 0, FF_OPT_TYPE_CONST, ME_HEX, INT_MIN, INT_MAX, V|E, "me_method" },
457 {"umh", "umh motion estimation", 0, FF_OPT_TYPE_CONST, ME_UMH, INT_MIN, INT_MAX, V|E, "me_method" },
458 {"iter", "iter motion estimation", 0, FF_OPT_TYPE_CONST, ME_ITER, INT_MIN, INT_MAX, V|E, "me_method" },
459 {"extradata_size", NULL, OFFSET(extradata_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
460 {"time_base", NULL, OFFSET(time_base), FF_OPT_TYPE_RATIONAL, DEFAULT, INT_MIN, INT_MAX},
461 {"g", "set the group of picture size", OFFSET(gop_size), FF_OPT_TYPE_INT, 12, INT_MIN, INT_MAX, V|E},
462 {"rate_emu", "frame rate emulation", OFFSET(rate_emu), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
463 {"ar", "set audio sampling rate (in Hz)", OFFSET(sample_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
464 {"ac", "set number of audio channels", OFFSET(channels), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
465 {"cutoff", "set cutoff bandwidth", OFFSET(cutoff), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, A|E},
466 {"frame_size", NULL, OFFSET(frame_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, A|E},
467 {"frame_number", NULL, OFFSET(frame_number), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
468 {"real_pict_num", NULL, OFFSET(real_pict_num), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
469 {"delay", NULL, OFFSET(delay), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
470 {"qcomp", "video quantizer scale compression (VBR)", OFFSET(qcompress), FF_OPT_TYPE_FLOAT, 0.5, -FLT_MAX, FLT_MAX, V|E},
471 {"qblur", "video quantizer scale blur (VBR)", OFFSET(qblur), FF_OPT_TYPE_FLOAT, 0.5, 0, FLT_MAX, V|E},
472 {"qmin", "min video quantizer scale (VBR)", OFFSET(qmin), FF_OPT_TYPE_INT, 2, 1, 51, V|E},
473 {"qmax", "max video quantizer scale (VBR)", OFFSET(qmax), FF_OPT_TYPE_INT, 31, 1, 51, V|E},
474 {"qdiff", "max difference between the quantizer scale (VBR)", OFFSET(max_qdiff), FF_OPT_TYPE_INT, 3, INT_MIN, INT_MAX, V|E},
475 {"bf", "use 'frames' B frames", OFFSET(max_b_frames), FF_OPT_TYPE_INT, DEFAULT, 0, FF_MAX_B_FRAMES, V|E},
476 {"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},
477 {"rc_strategy", "ratecontrol method", OFFSET(rc_strategy), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
478 {"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},
479 {"hurry_up", NULL, OFFSET(hurry_up), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D},
480 {"ps", "rtp payload size in bits", OFFSET(rtp_payload_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
481 {"mv_bits", NULL, OFFSET(mv_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
482 {"header_bits", NULL, OFFSET(header_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
483 {"i_tex_bits", NULL, OFFSET(i_tex_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
484 {"p_tex_bits", NULL, OFFSET(p_tex_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
485 {"i_count", NULL, OFFSET(i_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
486 {"p_count", NULL, OFFSET(p_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
487 {"skip_count", NULL, OFFSET(skip_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
488 {"misc_bits", NULL, OFFSET(misc_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
489 {"frame_bits", NULL, OFFSET(frame_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
490 {"codec_tag", NULL, OFFSET(codec_tag), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
491 {"bug", "workaround not auto detected encoder bugs", OFFSET(workaround_bugs), FF_OPT_TYPE_FLAGS, FF_BUG_AUTODETECT, INT_MIN, INT_MAX, V|D, "bug"},
492 {"autodetect", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_AUTODETECT, INT_MIN, INT_MAX, V|D, "bug"},
493 {"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"},
494 {"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"},
495 {"ump4", "(autodetected if fourcc==UMP4)", 0, FF_OPT_TYPE_CONST, FF_BUG_UMP4, INT_MIN, INT_MAX, V|D, "bug"},
496 {"no_padding", "padding bug (autodetected)", 0, FF_OPT_TYPE_CONST, FF_BUG_NO_PADDING, INT_MIN, INT_MAX, V|D, "bug"},
497 {"amv", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_AMV, INT_MIN, INT_MAX, V|D, "bug"},
498 {"ac_vlc", "illegal vlc bug (autodetected per fourcc)", 0, FF_OPT_TYPE_CONST, FF_BUG_AC_VLC, INT_MIN, INT_MAX, V|D, "bug"},
499 {"qpel_chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_QPEL_CHROMA, INT_MIN, INT_MAX, V|D, "bug"},
500 {"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"},
501 {"qpel_chroma2", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_QPEL_CHROMA2, INT_MIN, INT_MAX, V|D, "bug"},
502 {"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"},
503 {"edge", "edge padding bug (autodetected per fourcc/version)", 0, FF_OPT_TYPE_CONST, FF_BUG_EDGE, INT_MIN, INT_MAX, V|D, "bug"},
504 {"hpel_chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_HPEL_CHROMA, INT_MIN, INT_MAX, V|D, "bug"},
505 {"dc_clip", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_DC_CLIP, INT_MIN, INT_MAX, V|D, "bug"},
506 {"ms", "workaround various bugs in microsofts broken decoders", 0, FF_OPT_TYPE_CONST, FF_BUG_MS, INT_MIN, INT_MAX, V|D, "bug"},
507 {"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},
508 {"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},
509 {"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"},
510 {"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"},
511 {"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"},
512 {"normal", NULL, 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_NORMAL, INT_MIN, INT_MAX, V|D|E, "strict"},
513 {"inofficial", "allow inofficial extensions", 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_INOFFICIAL, INT_MIN, INT_MAX, V|D|E, "strict"},
514 {"experimental", "allow non standardized experimental things", 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_EXPERIMENTAL, INT_MIN, INT_MAX, V|D|E, "strict"},
515 {"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},
516 {"er", "set error detection aggressivity", OFFSET(error_recognition), FF_OPT_TYPE_INT, FF_ER_CAREFUL, INT_MIN, INT_MAX, A|V|D, "er"},
517 {"careful", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_CAREFUL, INT_MIN, INT_MAX, V|D, "er"},
518 {"compliant", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_COMPLIANT, INT_MIN, INT_MAX, V|D, "er"},
519 {"aggressive", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_AGGRESSIVE, INT_MIN, INT_MAX, V|D, "er"},
520 {"very_aggressive", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_VERY_AGGRESSIVE, INT_MIN, INT_MAX, V|D, "er"},
521 {"has_b_frames", NULL, OFFSET(has_b_frames), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
522 {"block_align", NULL, OFFSET(block_align), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
523 {"parse_only", NULL, OFFSET(parse_only), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
524 {"mpeg_quant", "use MPEG quantizers instead of H.263", OFFSET(mpeg_quant), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
525 {"stats_out", NULL, OFFSET(stats_out), FF_OPT_TYPE_STRING, DEFAULT, CHAR_MIN, CHAR_MAX},
526 {"stats_in", NULL, OFFSET(stats_in), FF_OPT_TYPE_STRING, DEFAULT, CHAR_MIN, CHAR_MAX},
527 {"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},
528 {"rc_qmod_amp", "experimental quantizer modulation", OFFSET(rc_qmod_amp), FF_OPT_TYPE_FLOAT, DEFAULT, -FLT_MAX, FLT_MAX, V|E},
529 {"rc_qmod_freq", "experimental quantizer modulation", OFFSET(rc_qmod_freq), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
530 {"rc_override_count", NULL, OFFSET(rc_override_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
531 {"rc_eq", "set rate control equation", OFFSET(rc_eq), FF_OPT_TYPE_STRING, DEFAULT, CHAR_MIN, CHAR_MAX, V|E},
532 {"maxrate", "set max video bitrate tolerance (in bits/s)", OFFSET(rc_max_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
533 {"minrate", "set min video bitrate tolerance (in bits/s)", OFFSET(rc_min_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
534 {"bufsize", "set ratecontrol buffer size (in bits)", OFFSET(rc_buffer_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, A|V|E},
535 {"rc_buf_aggressivity", "currently useless", OFFSET(rc_buffer_aggressivity), FF_OPT_TYPE_FLOAT, 1.0, -FLT_MAX, FLT_MAX, V|E},
536 {"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},
537 {"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},
538 {"rc_init_cplx", "initial complexity for 1-pass encoding", OFFSET(rc_initial_cplx), FF_OPT_TYPE_FLOAT, DEFAULT, -FLT_MAX, FLT_MAX, V|E},
539 {"dct", "DCT algorithm", OFFSET(dct_algo), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, V|E, "dct"},
540 {"auto", "autoselect a good one (default)", 0, FF_OPT_TYPE_CONST, FF_DCT_AUTO, INT_MIN, INT_MAX, V|E, "dct"},
541 {"fastint", "fast integer", 0, FF_OPT_TYPE_CONST, FF_DCT_FASTINT, INT_MIN, INT_MAX, V|E, "dct"},
542 {"int", "accurate integer", 0, FF_OPT_TYPE_CONST, FF_DCT_INT, INT_MIN, INT_MAX, V|E, "dct"},
543 {"mmx", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_MMX, INT_MIN, INT_MAX, V|E, "dct"},
544 {"mlib", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_MLIB, INT_MIN, INT_MAX, V|E, "dct"},
545 {"altivec", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_ALTIVEC, INT_MIN, INT_MAX, V|E, "dct"},
546 {"faan", "floating point AAN DCT", 0, FF_OPT_TYPE_CONST, FF_DCT_FAAN, INT_MIN, INT_MAX, V|E, "dct"},
547 {"lumi_mask", "compresses bright areas stronger than medium ones", OFFSET(lumi_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
548 {"tcplx_mask", "temporal complexity masking", OFFSET(temporal_cplx_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
549 {"scplx_mask", "spatial complexity masking", OFFSET(spatial_cplx_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
550 {"p_mask", "inter masking", OFFSET(p_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
551 {"dark_mask", "compresses dark areas stronger than medium ones", OFFSET(dark_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
552 {"idct", "select IDCT implementation", OFFSET(idct_algo), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, V|E|D, "idct"},
553 {"auto", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_AUTO, INT_MIN, INT_MAX, V|E|D, "idct"},
554 {"int", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_INT, INT_MIN, INT_MAX, V|E|D, "idct"},
555 {"simple", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLE, INT_MIN, INT_MAX, V|E|D, "idct"},
556 {"simplemmx", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEMMX, INT_MIN, INT_MAX, V|E|D, "idct"},
557 {"libmpeg2mmx", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_LIBMPEG2MMX, INT_MIN, INT_MAX, V|E|D, "idct"},
558 {"ps2", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_PS2, INT_MIN, INT_MAX, V|E|D, "idct"},
559 {"mlib", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_MLIB, INT_MIN, INT_MAX, V|E|D, "idct"},
560 {"arm", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_ARM, INT_MIN, INT_MAX, V|E|D, "idct"},
561 {"altivec", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_ALTIVEC, INT_MIN, INT_MAX, V|E|D, "idct"},
562 {"sh4", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SH4, INT_MIN, INT_MAX, V|E|D, "idct"},
563 {"simplearm", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEARM, INT_MIN, INT_MAX, V|E|D, "idct"},
564 {"simplearmv5te", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEARMV5TE, INT_MIN, INT_MAX, V|E|D, "idct"},
565 {"simplearmv6", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEARMV6, INT_MIN, INT_MAX, V|E|D, "idct"},
566 {"h264", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_H264, INT_MIN, INT_MAX, V|E|D, "idct"},
567 {"vp3", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_VP3, INT_MIN, INT_MAX, V|E|D, "idct"},
568 {"ipp", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_IPP, INT_MIN, INT_MAX, V|E|D, "idct"},
569 {"xvidmmx", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_XVIDMMX, INT_MIN, INT_MAX, V|E|D, "idct"},
570 {"faani", "floating point AAN IDCT", 0, FF_OPT_TYPE_CONST, FF_IDCT_FAAN, INT_MIN, INT_MAX, V|D|E, "idct"},
571 {"slice_count", NULL, OFFSET(slice_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
572 {"ec", "set error concealment strategy", OFFSET(error_concealment), FF_OPT_TYPE_FLAGS, 3, INT_MIN, INT_MAX, V|D, "ec"},
573 {"guess_mvs", "iterative motion vector (MV) search (slow)", 0, FF_OPT_TYPE_CONST, FF_EC_GUESS_MVS, INT_MIN, INT_MAX, V|D, "ec"},
574 {"deblock", "use strong deblock filter for damaged MBs", 0, FF_OPT_TYPE_CONST, FF_EC_DEBLOCK, INT_MIN, INT_MAX, V|D, "ec"},
575 {"bits_per_coded_sample", NULL, OFFSET(bits_per_coded_sample), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
576 {"pred", "prediction method", OFFSET(prediction_method), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "pred"},
577 {"left", NULL, 0, FF_OPT_TYPE_CONST, FF_PRED_LEFT, INT_MIN, INT_MAX, V|E, "pred"},
578 {"plane", NULL, 0, FF_OPT_TYPE_CONST, FF_PRED_PLANE, INT_MIN, INT_MAX, V|E, "pred"},
579 {"median", NULL, 0, FF_OPT_TYPE_CONST, FF_PRED_MEDIAN, INT_MIN, INT_MAX, V|E, "pred"},
580 {"aspect", "sample aspect ratio", OFFSET(sample_aspect_ratio), FF_OPT_TYPE_RATIONAL, DEFAULT, 0, 10, V|E},
581 {"debug", "print specific debug info", OFFSET(debug), FF_OPT_TYPE_FLAGS, DEFAULT, 0, INT_MAX, V|A|S|E|D, "debug"},
582 {"pict", "picture info", 0, FF_OPT_TYPE_CONST, FF_DEBUG_PICT_INFO, INT_MIN, INT_MAX, V|D, "debug"},
583 {"rc", "rate control", 0, FF_OPT_TYPE_CONST, FF_DEBUG_RC, INT_MIN, INT_MAX, V|E, "debug"},
584 {"bitstream", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_BITSTREAM, INT_MIN, INT_MAX, V|D, "debug"},
585 {"mb_type", "macroblock (MB) type", 0, FF_OPT_TYPE_CONST, FF_DEBUG_MB_TYPE, INT_MIN, INT_MAX, V|D, "debug"},
586 {"qp", "per-block quantization parameter (QP)", 0, FF_OPT_TYPE_CONST, FF_DEBUG_QP, INT_MIN, INT_MAX, V|D, "debug"},
587 {"mv", "motion vector", 0, FF_OPT_TYPE_CONST, FF_DEBUG_MV, INT_MIN, INT_MAX, V|D, "debug"},
588 {"dct_coeff", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_DCT_COEFF, INT_MIN, INT_MAX, V|D, "debug"},
589 {"skip", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_SKIP, INT_MIN, INT_MAX, V|D, "debug"},
590 {"startcode", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_STARTCODE, INT_MIN, INT_MAX, V|D, "debug"},
591 {"pts", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_PTS, INT_MIN, INT_MAX, V|D, "debug"},
592 {"er", "error recognition", 0, FF_OPT_TYPE_CONST, FF_DEBUG_ER, INT_MIN, INT_MAX, V|D, "debug"},
593 {"mmco", "memory management control operations (H.264)", 0, FF_OPT_TYPE_CONST, FF_DEBUG_MMCO, INT_MIN, INT_MAX, V|D, "debug"},
594 {"bugs", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_BUGS, INT_MIN, INT_MAX, V|D, "debug"},
595 {"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"},
596 {"vis_mb_type", "visualize block types", 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_MB_TYPE, INT_MIN, INT_MAX, V|D, "debug"},
597 {"buffers", "picture buffer allocations", 0, FF_OPT_TYPE_CONST, FF_DEBUG_BUFFERS, INT_MIN, INT_MAX, V|D, "debug"},
598 {"vismv", "visualize motion vectors (MVs)", OFFSET(debug_mv), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, V|D, "debug_mv"},
599 {"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"},
600 {"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"},
601 {"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"},
602 {"mb_qmin", "obsolete, use qmin", OFFSET(mb_qmin), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
603 {"mb_qmax", "obsolete, use qmax", OFFSET(mb_qmax), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
604 {"cmp", "full pel me compare function", OFFSET(me_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
605 {"subcmp", "sub pel me compare function", OFFSET(me_sub_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
606 {"mbcmp", "macroblock compare function", OFFSET(mb_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
607 {"ildctcmp", "interlaced dct compare function", OFFSET(ildct_cmp), FF_OPT_TYPE_INT, FF_CMP_VSAD, INT_MIN, INT_MAX, V|E, "cmp_func"},
608 {"dia_size", "diamond type & size for motion estimation", OFFSET(dia_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
609 {"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},
610 {"preme", "pre motion estimation", OFFSET(pre_me), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
611 {"precmp", "pre motion estimation compare function", OFFSET(me_pre_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
612 {"sad", "sum of absolute differences, fast (default)", 0, FF_OPT_TYPE_CONST, FF_CMP_SAD, INT_MIN, INT_MAX, V|E, "cmp_func"},
613 {"sse", "sum of squared errors", 0, FF_OPT_TYPE_CONST, FF_CMP_SSE, INT_MIN, INT_MAX, V|E, "cmp_func"},
614 {"satd", "sum of absolute Hadamard transformed differences", 0, FF_OPT_TYPE_CONST, FF_CMP_SATD, INT_MIN, INT_MAX, V|E, "cmp_func"},
615 {"dct", "sum of absolute DCT transformed differences", 0, FF_OPT_TYPE_CONST, FF_CMP_DCT, INT_MIN, INT_MAX, V|E, "cmp_func"},
616 {"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"},
617 {"bit", "number of bits needed for the block", 0, FF_OPT_TYPE_CONST, FF_CMP_BIT, INT_MIN, INT_MAX, V|E, "cmp_func"},
618 {"rd", "rate distortion optimal, slow", 0, FF_OPT_TYPE_CONST, FF_CMP_RD, INT_MIN, INT_MAX, V|E, "cmp_func"},
619 {"zero", "0", 0, FF_OPT_TYPE_CONST, FF_CMP_ZERO, INT_MIN, INT_MAX, V|E, "cmp_func"},
620 {"vsad", "sum of absolute vertical differences", 0, FF_OPT_TYPE_CONST, FF_CMP_VSAD, INT_MIN, INT_MAX, V|E, "cmp_func"},
621 {"vsse","sum of squared vertical differences", 0, FF_OPT_TYPE_CONST, FF_CMP_VSSE, INT_MIN, INT_MAX, V|E, "cmp_func"},
622 {"nsse", "noise preserving sum of squared differences", 0, FF_OPT_TYPE_CONST, FF_CMP_NSSE, INT_MIN, INT_MAX, V|E, "cmp_func"},
623 #ifdef CONFIG_SNOW_ENCODER
624 {"w53", "5/3 wavelet, only used in snow", 0, FF_OPT_TYPE_CONST, FF_CMP_W53, INT_MIN, INT_MAX, V|E, "cmp_func"},
625 {"w97", "9/7 wavelet, only used in snow", 0, FF_OPT_TYPE_CONST, FF_CMP_W97, INT_MIN, INT_MAX, V|E, "cmp_func"},
627 {"dctmax", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_DCTMAX, INT_MIN, INT_MAX, V|E, "cmp_func"},
628 {"chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_CHROMA, INT_MIN, INT_MAX, V|E, "cmp_func"},
629 {"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},
630 {"subq", "sub pel motion estimation quality", OFFSET(me_subpel_quality), FF_OPT_TYPE_INT, 8, INT_MIN, INT_MAX, V|E},
631 {"dtg_active_format", NULL, OFFSET(dtg_active_format), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
632 {"me_range", "limit motion vectors range (1023 for DivX player)", OFFSET(me_range), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
633 {"ibias", "intra quant bias", OFFSET(intra_quant_bias), FF_OPT_TYPE_INT, FF_DEFAULT_QUANT_BIAS, INT_MIN, INT_MAX, V|E},
634 {"pbias", "inter quant bias", OFFSET(inter_quant_bias), FF_OPT_TYPE_INT, FF_DEFAULT_QUANT_BIAS, INT_MIN, INT_MAX, V|E},
635 {"color_table_id", NULL, OFFSET(color_table_id), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
636 {"internal_buffer_count", NULL, OFFSET(internal_buffer_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
637 {"global_quality", NULL, OFFSET(global_quality), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
638 {"coder", NULL, OFFSET(coder_type), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "coder"},
639 {"vlc", "variable length coder / huffman coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_VLC, INT_MIN, INT_MAX, V|E, "coder"},
640 {"ac", "arithmetic coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_AC, INT_MIN, INT_MAX, V|E, "coder"},
641 {"raw", "raw (no encoding)", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_RAW, INT_MIN, INT_MAX, V|E, "coder"},
642 {"rle", "run-length coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_RLE, INT_MIN, INT_MAX, V|E, "coder"},
643 {"deflate", "deflate-based coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_DEFLATE, INT_MIN, INT_MAX, V|E, "coder"},
644 {"context", "context model", OFFSET(context_model), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
645 {"slice_flags", NULL, OFFSET(slice_flags), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
646 {"xvmc_acceleration", NULL, OFFSET(xvmc_acceleration), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
647 {"mbd", "macroblock decision algorithm (high quality mode)", OFFSET(mb_decision), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "mbd"},
648 {"simple", "use mbcmp (default)", 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_SIMPLE, INT_MIN, INT_MAX, V|E, "mbd"},
649 {"bits", "use fewest bits", 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_BITS, INT_MIN, INT_MAX, V|E, "mbd"},
650 {"rd", "use best rate distortion", 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_RD, INT_MIN, INT_MAX, V|E, "mbd"},
651 {"stream_codec_tag", NULL, OFFSET(stream_codec_tag), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
652 {"sc_threshold", "scene change threshold", OFFSET(scenechange_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
653 {"lmin", "min lagrange factor (VBR)", OFFSET(lmin), FF_OPT_TYPE_INT, 2*FF_QP2LAMBDA, 0, INT_MAX, V|E},
654 {"lmax", "max lagrange factor (VBR)", OFFSET(lmax), FF_OPT_TYPE_INT, 31*FF_QP2LAMBDA, 0, INT_MAX, V|E},
655 {"nr", "noise reduction", OFFSET(noise_reduction), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
656 {"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},
657 {"inter_threshold", NULL, OFFSET(inter_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
658 {"flags2", NULL, OFFSET(flags2), FF_OPT_TYPE_FLAGS, CODEC_FLAG2_FASTPSKIP|CODEC_FLAG2_BIT_RESERVOIR, 0, UINT_MAX, V|A|E|D, "flags2"},
659 {"error", NULL, OFFSET(error_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
660 {"antialias", "MP3 antialias algorithm", OFFSET(antialias_algo), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D, "aa"},
661 {"auto", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_AUTO, INT_MIN, INT_MAX, V|D, "aa"},
662 {"fastint", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_FASTINT, INT_MIN, INT_MAX, V|D, "aa"},
663 {"int", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_INT, INT_MIN, INT_MAX, V|D, "aa"},
664 {"float", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_FLOAT, INT_MIN, INT_MAX, V|D, "aa"},
665 {"qns", "quantizer noise shaping", OFFSET(quantizer_noise_shaping), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
666 {"threads", NULL, OFFSET(thread_count), FF_OPT_TYPE_INT, 1, INT_MIN, INT_MAX, V|E|D},
667 {"me_threshold", "motion estimaton threshold", OFFSET(me_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
668 {"mb_threshold", "macroblock threshold", OFFSET(mb_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
669 {"dc", "intra_dc_precision", OFFSET(intra_dc_precision), FF_OPT_TYPE_INT, 0, INT_MIN, INT_MAX, V|E},
670 {"nssew", "nsse weight", OFFSET(nsse_weight), FF_OPT_TYPE_INT, 8, INT_MIN, INT_MAX, V|E},
671 {"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},
672 {"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},
673 {"profile", NULL, OFFSET(profile), FF_OPT_TYPE_INT, FF_PROFILE_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "profile"},
674 {"unknown", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "profile"},
675 {"aac_main", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_AAC_MAIN, INT_MIN, INT_MAX, A|E, "profile"},
676 {"aac_low", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_AAC_LOW, INT_MIN, INT_MAX, A|E, "profile"},
677 {"aac_ssr", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_AAC_SSR, INT_MIN, INT_MAX, A|E, "profile"},
678 {"aac_ltp", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_AAC_LTP, INT_MIN, INT_MAX, A|E, "profile"},
679 {"level", NULL, OFFSET(level), FF_OPT_TYPE_INT, FF_LEVEL_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "level"},
680 {"unknown", NULL, 0, FF_OPT_TYPE_CONST, FF_LEVEL_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "level"},
681 {"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},
682 {"skip_threshold", "frame skip threshold", OFFSET(frame_skip_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
683 {"skip_factor", "frame skip factor", OFFSET(frame_skip_factor), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
684 {"skip_exp", "frame skip exponent", OFFSET(frame_skip_exp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
685 {"skipcmp", "frame skip compare function", OFFSET(frame_skip_cmp), FF_OPT_TYPE_INT, FF_CMP_DCTMAX, INT_MIN, INT_MAX, V|E, "cmp_func"},
686 {"border_mask", "increases the quantizer for macroblocks close to borders", OFFSET(border_masking), FF_OPT_TYPE_FLOAT, DEFAULT, -FLT_MAX, FLT_MAX, V|E},
687 {"mblmin", "min macroblock lagrange factor (VBR)", OFFSET(mb_lmin), FF_OPT_TYPE_INT, FF_QP2LAMBDA * 2, 1, FF_LAMBDA_MAX, V|E},
688 {"mblmax", "max macroblock lagrange factor (VBR)", OFFSET(mb_lmax), FF_OPT_TYPE_INT, FF_QP2LAMBDA * 31, 1, FF_LAMBDA_MAX, V|E},
689 {"mepc", "motion estimation bitrate penalty compensation (1.0 = 256)", OFFSET(me_penalty_compensation), FF_OPT_TYPE_INT, 256, INT_MIN, INT_MAX, V|E},
690 {"skip_loop_filter", NULL, OFFSET(skip_loop_filter), FF_OPT_TYPE_INT, AVDISCARD_DEFAULT, INT_MIN, INT_MAX, V|D, "avdiscard"},
691 {"skip_idct" , NULL, OFFSET(skip_idct) , FF_OPT_TYPE_INT, AVDISCARD_DEFAULT, INT_MIN, INT_MAX, V|D, "avdiscard"},
692 {"skip_frame" , NULL, OFFSET(skip_frame) , FF_OPT_TYPE_INT, AVDISCARD_DEFAULT, INT_MIN, INT_MAX, V|D, "avdiscard"},
693 {"none" , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_NONE , INT_MIN, INT_MAX, V|D, "avdiscard"},
694 {"default" , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_DEFAULT, INT_MIN, INT_MAX, V|D, "avdiscard"},
695 {"noref" , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_NONREF , INT_MIN, INT_MAX, V|D, "avdiscard"},
696 {"bidir" , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_BIDIR , INT_MIN, INT_MAX, V|D, "avdiscard"},
697 {"nokey" , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_NONKEY , INT_MIN, INT_MAX, V|D, "avdiscard"},
698 {"all" , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_ALL , INT_MIN, INT_MAX, V|D, "avdiscard"},
699 {"bidir_refine", "refine the two motion vectors used in bidirectional macroblocks", OFFSET(bidir_refine), FF_OPT_TYPE_INT, DEFAULT, 0, 4, V|E},
700 {"brd_scale", "downscales frames for dynamic B-frame decision", OFFSET(brd_scale), FF_OPT_TYPE_INT, DEFAULT, 0, 10, V|E},
701 {"crf", "enables constant quality mode, and selects the quality (x264)", OFFSET(crf), FF_OPT_TYPE_FLOAT, DEFAULT, 0, 51, V|E},
702 {"cqp", "constant quantization parameter rate control method", OFFSET(cqp), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, V|E},
703 {"keyint_min", "minimum interval between IDR-frames (x264)", OFFSET(keyint_min), FF_OPT_TYPE_INT, 25, INT_MIN, INT_MAX, V|E},
704 {"refs", "reference frames to consider for motion compensation (Snow)", OFFSET(refs), FF_OPT_TYPE_INT, 1, INT_MIN, INT_MAX, V|E},
705 {"chromaoffset", "chroma qp offset from luma", OFFSET(chromaoffset), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
706 {"bframebias", "influences how often B-frames are used", OFFSET(bframebias), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
707 {"trellis", "rate-distortion optimal quantization", OFFSET(trellis), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|A|E},
708 {"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},
709 {"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"},
710 {"wpred", "weighted biprediction for b-frames (H.264)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_WPRED, INT_MIN, INT_MAX, V|E, "flags2"},
711 {"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"},
712 {"dct8x8", "high profile 8x8 transform (H.264)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_8X8DCT, INT_MIN, INT_MAX, V|E, "flags2"},
713 {"fastpskip", "fast pskip (H.264)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_FASTPSKIP, INT_MIN, INT_MAX, V|E, "flags2"},
714 {"aud", "access unit delimiters (H.264)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_AUD, INT_MIN, INT_MAX, V|E, "flags2"},
715 {"skiprd", "RD optimal MB level residual skipping", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_SKIP_RD, INT_MIN, INT_MAX, V|E, "flags2"},
716 {"complexityblur", "reduce fluctuations in qp (before curve compression)", OFFSET(complexityblur), FF_OPT_TYPE_FLOAT, 20.0, FLT_MIN, FLT_MAX, V|E},
717 {"deblockalpha", "in-loop deblocking filter alphac0 parameter", OFFSET(deblockalpha), FF_OPT_TYPE_INT, DEFAULT, -6, 6, V|E},
718 {"deblockbeta", "in-loop deblocking filter beta parameter", OFFSET(deblockbeta), FF_OPT_TYPE_INT, DEFAULT, -6, 6, V|E},
719 {"partitions", "macroblock subpartition sizes to consider", OFFSET(partitions), FF_OPT_TYPE_FLAGS, DEFAULT, INT_MIN, INT_MAX, V|E, "partitions"},
720 {"parti4x4", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_I4X4, INT_MIN, INT_MAX, V|E, "partitions"},
721 {"parti8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_I8X8, INT_MIN, INT_MAX, V|E, "partitions"},
722 {"partp4x4", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_P4X4, INT_MIN, INT_MAX, V|E, "partitions"},
723 {"partp8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_P8X8, INT_MIN, INT_MAX, V|E, "partitions"},
724 {"partb8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_B8X8, INT_MIN, INT_MAX, V|E, "partitions"},
725 {"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},
726 {"mv0_threshold", NULL, OFFSET(mv0_threshold), FF_OPT_TYPE_INT, 256, 0, INT_MAX, V|E},
727 {"ivlc", "intra vlc table", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_INTRA_VLC, INT_MIN, INT_MAX, V|E, "flags2"},
728 {"b_sensitivity", "adjusts sensitivity of b_frame_strategy 1", OFFSET(b_sensitivity), FF_OPT_TYPE_INT, 40, 1, INT_MAX, V|E},
729 {"compression_level", NULL, OFFSET(compression_level), FF_OPT_TYPE_INT, FF_COMPRESSION_DEFAULT, INT_MIN, INT_MAX, V|A|E},
730 {"use_lpc", "sets whether to use LPC mode (FLAC)", OFFSET(use_lpc), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
731 {"lpc_coeff_precision", "LPC coefficient precision (FLAC)", OFFSET(lpc_coeff_precision), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, A|E},
732 {"min_prediction_order", NULL, OFFSET(min_prediction_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
733 {"max_prediction_order", NULL, OFFSET(max_prediction_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
734 {"prediction_order_method", "search method for selecting prediction order", OFFSET(prediction_order_method), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
735 {"min_partition_order", NULL, OFFSET(min_partition_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
736 {"max_partition_order", NULL, OFFSET(max_partition_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
737 {"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},
738 {"drop_frame_timecode", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_DROP_FRAME_TIMECODE, INT_MIN, INT_MAX, V|E, "flags2"},
739 {"non_linear_q", "use non linear quantizer", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_NON_LINEAR_QUANT, INT_MIN, INT_MAX, V|E, "flags2"},
740 {"request_channels", "set desired number of audio channels", OFFSET(request_channels), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, A|D},
741 {"drc_scale", "percentage of dynamic range compression to apply", OFFSET(drc_scale), FF_OPT_TYPE_FLOAT, 1.0, 0.0, 1.0, A|D},
742 {"reservoir", "use bit reservoir", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_BIT_RESERVOIR, INT_MIN, INT_MAX, A|E, "flags2"},
743 {"bits_per_raw_sample", NULL, OFFSET(bits_per_raw_sample), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
744 {"channel_layout", NULL, OFFSET(channel_layout), FF_OPT_TYPE_INT64, DEFAULT, 0, INT64_MAX, A|E|D, "channel_layout"},
745 {"request_channel_layout", NULL, OFFSET(request_channel_layout), FF_OPT_TYPE_INT64, DEFAULT, 0, INT64_MAX, A|D, "request_channel_layout"},
756 static const AVClass av_codec_context_class = { "AVCodecContext", context_to_name, options };
758 void avcodec_get_context_defaults2(AVCodecContext *s, enum CodecType codec_type){
760 memset(s, 0, sizeof(AVCodecContext));
762 s->av_class= &av_codec_context_class;
764 s->codec_type = codec_type;
765 if(codec_type == CODEC_TYPE_AUDIO)
766 flags= AV_OPT_FLAG_AUDIO_PARAM;
767 else if(codec_type == CODEC_TYPE_VIDEO)
768 flags= AV_OPT_FLAG_VIDEO_PARAM;
769 else if(codec_type == CODEC_TYPE_SUBTITLE)
770 flags= AV_OPT_FLAG_SUBTITLE_PARAM;
771 av_opt_set_defaults2(s, flags, flags);
773 s->time_base= (AVRational){0,1};
774 s->get_buffer= avcodec_default_get_buffer;
775 s->release_buffer= avcodec_default_release_buffer;
776 s->get_format= avcodec_default_get_format;
777 s->execute= avcodec_default_execute;
778 s->sample_aspect_ratio= (AVRational){0,1};
779 s->pix_fmt= PIX_FMT_NONE;
780 s->sample_fmt= SAMPLE_FMT_S16; // FIXME: set to NONE
783 s->reget_buffer= avcodec_default_reget_buffer;
786 AVCodecContext *avcodec_alloc_context2(enum CodecType codec_type){
787 AVCodecContext *avctx= av_malloc(sizeof(AVCodecContext));
789 if(avctx==NULL) return NULL;
791 avcodec_get_context_defaults2(avctx, codec_type);
796 void avcodec_get_context_defaults(AVCodecContext *s){
797 avcodec_get_context_defaults2(s, CODEC_TYPE_UNKNOWN);
800 AVCodecContext *avcodec_alloc_context(void){
801 return avcodec_alloc_context2(CODEC_TYPE_UNKNOWN);
804 void avcodec_get_frame_defaults(AVFrame *pic){
805 memset(pic, 0, sizeof(AVFrame));
807 pic->pts= AV_NOPTS_VALUE;
811 AVFrame *avcodec_alloc_frame(void){
812 AVFrame *pic= av_malloc(sizeof(AVFrame));
814 if(pic==NULL) return NULL;
816 avcodec_get_frame_defaults(pic);
821 int attribute_align_arg avcodec_open(AVCodecContext *avctx, AVCodec *codec)
825 entangled_thread_counter++;
826 if(entangled_thread_counter != 1){
827 av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
831 if(avctx->codec || !codec)
834 if (codec->priv_data_size > 0) {
835 avctx->priv_data = av_mallocz(codec->priv_data_size);
836 if (!avctx->priv_data) {
837 ret = AVERROR(ENOMEM);
841 avctx->priv_data = NULL;
844 if(avctx->coded_width && avctx->coded_height)
845 avcodec_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
846 else if(avctx->width && avctx->height)
847 avcodec_set_dimensions(avctx, avctx->width, avctx->height);
849 if((avctx->coded_width||avctx->coded_height) && avcodec_check_dimensions(avctx,avctx->coded_width,avctx->coded_height)){
850 av_freep(&avctx->priv_data);
851 ret = AVERROR(EINVAL);
855 avctx->codec = codec;
856 avctx->codec_id = codec->id;
857 avctx->frame_number = 0;
858 if(avctx->codec->init){
859 ret = avctx->codec->init(avctx);
861 av_freep(&avctx->priv_data);
868 entangled_thread_counter--;
872 int attribute_align_arg avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
873 const short *samples)
875 if(buf_size < FF_MIN_BUFFER_SIZE && 0){
876 av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
879 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || samples){
880 int ret = avctx->codec->encode(avctx, buf, buf_size, (void *)samples);
881 avctx->frame_number++;
887 int attribute_align_arg avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
890 if(buf_size < FF_MIN_BUFFER_SIZE){
891 av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
894 if(avcodec_check_dimensions(avctx,avctx->width,avctx->height))
896 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || pict){
897 int ret = avctx->codec->encode(avctx, buf, buf_size, (void *)pict);
898 avctx->frame_number++;
899 emms_c(); //needed to avoid an emms_c() call before every return;
906 int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
907 const AVSubtitle *sub)
910 ret = avctx->codec->encode(avctx, buf, buf_size, (void *)sub);
911 avctx->frame_number++;
915 int attribute_align_arg avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
916 int *got_picture_ptr,
917 const uint8_t *buf, int buf_size)
922 if((avctx->coded_width||avctx->coded_height) && avcodec_check_dimensions(avctx,avctx->coded_width,avctx->coded_height))
924 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || buf_size){
925 ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
928 emms_c(); //needed to avoid an emms_c() call before every return;
930 if (*got_picture_ptr)
931 avctx->frame_number++;
938 int attribute_align_arg avcodec_decode_audio2(AVCodecContext *avctx, int16_t *samples,
940 const uint8_t *buf, int buf_size)
944 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || buf_size){
945 //FIXME remove the check below _after_ ensuring that all audio check that the available space is enough
946 if(*frame_size_ptr < AVCODEC_MAX_AUDIO_FRAME_SIZE){
947 av_log(avctx, AV_LOG_ERROR, "buffer smaller than AVCODEC_MAX_AUDIO_FRAME_SIZE\n");
950 if(*frame_size_ptr < FF_MIN_BUFFER_SIZE ||
951 *frame_size_ptr < avctx->channels * avctx->frame_size * sizeof(int16_t)){
952 av_log(avctx, AV_LOG_ERROR, "buffer %d too small\n", *frame_size_ptr);
956 ret = avctx->codec->decode(avctx, samples, frame_size_ptr,
958 avctx->frame_number++;
966 int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
968 const uint8_t *buf, int buf_size)
973 ret = avctx->codec->decode(avctx, sub, got_sub_ptr,
976 avctx->frame_number++;
980 int avcodec_close(AVCodecContext *avctx)
982 entangled_thread_counter++;
983 if(entangled_thread_counter != 1){
984 av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
985 entangled_thread_counter--;
989 if (ENABLE_THREADS && avctx->thread_opaque)
990 avcodec_thread_free(avctx);
991 if (avctx->codec->close)
992 avctx->codec->close(avctx);
993 avcodec_default_free_buffers(avctx);
994 av_freep(&avctx->priv_data);
996 entangled_thread_counter--;
1000 AVCodec *avcodec_find_encoder(enum CodecID id)
1005 if (p->encode != NULL && p->id == id)
1012 AVCodec *avcodec_find_encoder_by_name(const char *name)
1019 if (p->encode != NULL && strcmp(name,p->name) == 0)
1026 AVCodec *avcodec_find_decoder(enum CodecID id)
1031 if (p->decode != NULL && p->id == id)
1038 AVCodec *avcodec_find_decoder_by_name(const char *name)
1045 if (p->decode != NULL && strcmp(name,p->name) == 0)
1052 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1054 const char *codec_name;
1058 AVRational display_aspect_ratio;
1061 p = avcodec_find_encoder(enc->codec_id);
1063 p = avcodec_find_decoder(enc->codec_id);
1066 codec_name = p->name;
1067 if (!encode && enc->codec_id == CODEC_ID_MP3) {
1068 if (enc->sub_id == 2)
1070 else if (enc->sub_id == 1)
1073 } else if (enc->codec_id == CODEC_ID_MPEG2TS) {
1074 /* fake mpeg2 transport stream codec (currently not
1076 codec_name = "mpeg2ts";
1077 } else if (enc->codec_name[0] != '\0') {
1078 codec_name = enc->codec_name;
1080 /* output avi tags */
1081 if( isprint(enc->codec_tag&0xFF) && isprint((enc->codec_tag>>8)&0xFF)
1082 && isprint((enc->codec_tag>>16)&0xFF) && isprint((enc->codec_tag>>24)&0xFF)){
1083 snprintf(buf1, sizeof(buf1), "%c%c%c%c / 0x%04X",
1084 enc->codec_tag & 0xff,
1085 (enc->codec_tag >> 8) & 0xff,
1086 (enc->codec_tag >> 16) & 0xff,
1087 (enc->codec_tag >> 24) & 0xff,
1090 snprintf(buf1, sizeof(buf1), "0x%04x", enc->codec_tag);
1095 switch(enc->codec_type) {
1096 case CODEC_TYPE_VIDEO:
1097 snprintf(buf, buf_size,
1099 codec_name, enc->mb_decision ? " (hq)" : "");
1100 if (enc->pix_fmt != PIX_FMT_NONE) {
1101 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1103 avcodec_get_pix_fmt_name(enc->pix_fmt));
1106 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1108 enc->width, enc->height);
1109 if (enc->sample_aspect_ratio.num) {
1110 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
1111 enc->width*enc->sample_aspect_ratio.num,
1112 enc->height*enc->sample_aspect_ratio.den,
1114 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1115 " [PAR %d:%d DAR %d:%d]",
1116 enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
1117 display_aspect_ratio.num, display_aspect_ratio.den);
1119 if(av_log_get_level() >= AV_LOG_DEBUG){
1120 int g= ff_gcd(enc->time_base.num, enc->time_base.den);
1121 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1123 enc->time_base.num/g, enc->time_base.den/g);
1127 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1128 ", q=%d-%d", enc->qmin, enc->qmax);
1130 bitrate = enc->bit_rate;
1132 case CODEC_TYPE_AUDIO:
1133 snprintf(buf, buf_size,
1136 if (enc->sample_rate) {
1137 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1138 ", %d Hz", enc->sample_rate);
1140 av_strlcat(buf, ", ", buf_size);
1141 avcodec_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
1142 if (enc->sample_fmt != SAMPLE_FMT_NONE) {
1143 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1144 ", %s", avcodec_get_sample_fmt_name(enc->sample_fmt));
1147 /* for PCM codecs, compute bitrate directly */
1148 switch(enc->codec_id) {
1149 case CODEC_ID_PCM_F64BE:
1150 case CODEC_ID_PCM_F64LE:
1151 bitrate = enc->sample_rate * enc->channels * 64;
1153 case CODEC_ID_PCM_S32LE:
1154 case CODEC_ID_PCM_S32BE:
1155 case CODEC_ID_PCM_U32LE:
1156 case CODEC_ID_PCM_U32BE:
1157 case CODEC_ID_PCM_F32BE:
1158 case CODEC_ID_PCM_F32LE:
1159 bitrate = enc->sample_rate * enc->channels * 32;
1161 case CODEC_ID_PCM_S24LE:
1162 case CODEC_ID_PCM_S24BE:
1163 case CODEC_ID_PCM_U24LE:
1164 case CODEC_ID_PCM_U24BE:
1165 case CODEC_ID_PCM_S24DAUD:
1166 bitrate = enc->sample_rate * enc->channels * 24;
1168 case CODEC_ID_PCM_S16LE:
1169 case CODEC_ID_PCM_S16BE:
1170 case CODEC_ID_PCM_S16LE_PLANAR:
1171 case CODEC_ID_PCM_U16LE:
1172 case CODEC_ID_PCM_U16BE:
1173 bitrate = enc->sample_rate * enc->channels * 16;
1175 case CODEC_ID_PCM_S8:
1176 case CODEC_ID_PCM_U8:
1177 case CODEC_ID_PCM_ALAW:
1178 case CODEC_ID_PCM_MULAW:
1179 case CODEC_ID_PCM_ZORK:
1180 bitrate = enc->sample_rate * enc->channels * 8;
1183 bitrate = enc->bit_rate;
1187 case CODEC_TYPE_DATA:
1188 snprintf(buf, buf_size, "Data: %s", codec_name);
1189 bitrate = enc->bit_rate;
1191 case CODEC_TYPE_SUBTITLE:
1192 snprintf(buf, buf_size, "Subtitle: %s", codec_name);
1193 bitrate = enc->bit_rate;
1195 case CODEC_TYPE_ATTACHMENT:
1196 snprintf(buf, buf_size, "Attachment: %s", codec_name);
1197 bitrate = enc->bit_rate;
1200 snprintf(buf, buf_size, "Invalid Codec type %d", enc->codec_type);
1204 if (enc->flags & CODEC_FLAG_PASS1)
1205 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1207 if (enc->flags & CODEC_FLAG_PASS2)
1208 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1212 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1213 ", %d kb/s", bitrate / 1000);
1217 unsigned avcodec_version( void )
1219 return LIBAVCODEC_VERSION_INT;
1222 void avcodec_init(void)
1224 static int initialized = 0;
1226 if (initialized != 0)
1230 dsputil_static_init();
1233 void avcodec_flush_buffers(AVCodecContext *avctx)
1235 if(avctx->codec->flush)
1236 avctx->codec->flush(avctx);
1239 void avcodec_default_free_buffers(AVCodecContext *s){
1242 if(s->internal_buffer==NULL) return;
1244 for(i=0; i<INTERNAL_BUFFER_SIZE; i++){
1245 InternalBuffer *buf= &((InternalBuffer*)s->internal_buffer)[i];
1247 av_freep(&buf->base[j]);
1251 av_freep(&s->internal_buffer);
1253 s->internal_buffer_count=0;
1256 char av_get_pict_type_char(int pict_type){
1258 case FF_I_TYPE: return 'I';
1259 case FF_P_TYPE: return 'P';
1260 case FF_B_TYPE: return 'B';
1261 case FF_S_TYPE: return 'S';
1262 case FF_SI_TYPE:return 'i';
1263 case FF_SP_TYPE:return 'p';
1264 case FF_BI_TYPE:return 'b';
1265 default: return '?';
1269 int av_get_bits_per_sample(enum CodecID codec_id){
1271 case CODEC_ID_ADPCM_SBPRO_2:
1273 case CODEC_ID_ADPCM_SBPRO_3:
1275 case CODEC_ID_ADPCM_SBPRO_4:
1276 case CODEC_ID_ADPCM_CT:
1278 case CODEC_ID_PCM_ALAW:
1279 case CODEC_ID_PCM_MULAW:
1280 case CODEC_ID_PCM_S8:
1281 case CODEC_ID_PCM_U8:
1282 case CODEC_ID_PCM_ZORK:
1284 case CODEC_ID_PCM_S16BE:
1285 case CODEC_ID_PCM_S16LE:
1286 case CODEC_ID_PCM_S16LE_PLANAR:
1287 case CODEC_ID_PCM_U16BE:
1288 case CODEC_ID_PCM_U16LE:
1290 case CODEC_ID_PCM_S24DAUD:
1291 case CODEC_ID_PCM_S24BE:
1292 case CODEC_ID_PCM_S24LE:
1293 case CODEC_ID_PCM_U24BE:
1294 case CODEC_ID_PCM_U24LE:
1296 case CODEC_ID_PCM_S32BE:
1297 case CODEC_ID_PCM_S32LE:
1298 case CODEC_ID_PCM_U32BE:
1299 case CODEC_ID_PCM_U32LE:
1300 case CODEC_ID_PCM_F32BE:
1301 case CODEC_ID_PCM_F32LE:
1303 case CODEC_ID_PCM_F64BE:
1304 case CODEC_ID_PCM_F64LE:
1311 int av_get_bits_per_sample_format(enum SampleFormat sample_fmt) {
1312 switch (sample_fmt) {
1315 case SAMPLE_FMT_S16:
1317 case SAMPLE_FMT_S32:
1318 case SAMPLE_FMT_FLT:
1320 case SAMPLE_FMT_DBL:
1327 #if !defined(HAVE_THREADS)
1328 int avcodec_thread_init(AVCodecContext *s, int thread_count){
1333 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1347 /* Wrapper to work around the lack of mkstemp() on mingw/cygin.
1348 * Also, tries to create file in /tmp first, if possible.
1349 * *prefix can be a character constant; *filename will be allocated internally.
1350 * Returns file descriptor of opened file (or -1 on error)
1351 * and opened file name in **filename. */
1352 int av_tempfile(char *prefix, char **filename) {
1354 #if !defined(HAVE_MKSTEMP)
1355 *filename = tempnam(".", prefix);
1357 size_t len = strlen(prefix) + 12; /* room for "/tmp/" and "XXXXXX\0" */
1358 *filename = av_malloc(len);
1360 /* -----common section-----*/
1361 if (*filename == NULL) {
1362 av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot allocate file name\n");
1365 #if !defined(HAVE_MKSTEMP)
1366 fd = open(*filename, O_RDWR | O_BINARY | O_CREAT, 0444);
1368 snprintf(*filename, len, "/tmp/%sXXXXXX", prefix);
1369 fd = mkstemp(*filename);
1371 snprintf(*filename, len, "./%sXXXXXX", prefix);
1372 fd = mkstemp(*filename);
1375 /* -----common section-----*/
1377 av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot open temporary file %s\n", *filename);
1380 return fd; /* success */
1386 } VideoFrameSizeAbbr;
1390 int rate_num, rate_den;
1391 } VideoFrameRateAbbr;
1393 static const VideoFrameSizeAbbr video_frame_size_abbrs[] = {
1394 { "ntsc", 720, 480 },
1395 { "pal", 720, 576 },
1396 { "qntsc", 352, 240 }, /* VCD compliant NTSC */
1397 { "qpal", 352, 288 }, /* VCD compliant PAL */
1398 { "sntsc", 640, 480 }, /* square pixel NTSC */
1399 { "spal", 768, 576 }, /* square pixel PAL */
1400 { "film", 352, 240 },
1401 { "ntsc-film", 352, 240 },
1402 { "sqcif", 128, 96 },
1403 { "qcif", 176, 144 },
1404 { "cif", 352, 288 },
1405 { "4cif", 704, 576 },
1406 { "qqvga", 160, 120 },
1407 { "qvga", 320, 240 },
1408 { "vga", 640, 480 },
1409 { "svga", 800, 600 },
1410 { "xga", 1024, 768 },
1411 { "uxga", 1600,1200 },
1412 { "qxga", 2048,1536 },
1413 { "sxga", 1280,1024 },
1414 { "qsxga", 2560,2048 },
1415 { "hsxga", 5120,4096 },
1416 { "wvga", 852, 480 },
1417 { "wxga", 1366, 768 },
1418 { "wsxga", 1600,1024 },
1419 { "wuxga", 1920,1200 },
1420 { "woxga", 2560,1600 },
1421 { "wqsxga", 3200,2048 },
1422 { "wquxga", 3840,2400 },
1423 { "whsxga", 6400,4096 },
1424 { "whuxga", 7680,4800 },
1425 { "cga", 320, 200 },
1426 { "ega", 640, 350 },
1427 { "hd480", 852, 480 },
1428 { "hd720", 1280, 720 },
1429 { "hd1080", 1920,1080 },
1432 static const VideoFrameRateAbbr video_frame_rate_abbrs[]= {
1433 { "ntsc", 30000, 1001 },
1435 { "qntsc", 30000, 1001 }, /* VCD compliant NTSC */
1436 { "qpal", 25, 1 }, /* VCD compliant PAL */
1437 { "sntsc", 30000, 1001 }, /* square pixel NTSC */
1438 { "spal", 25, 1 }, /* square pixel PAL */
1440 { "ntsc-film", 24000, 1001 },
1443 int av_parse_video_frame_size(int *width_ptr, int *height_ptr, const char *str)
1446 int n = FF_ARRAY_ELEMS(video_frame_size_abbrs);
1448 int frame_width = 0, frame_height = 0;
1451 if (!strcmp(video_frame_size_abbrs[i].abbr, str)) {
1452 frame_width = video_frame_size_abbrs[i].width;
1453 frame_height = video_frame_size_abbrs[i].height;
1459 frame_width = strtol(p, (char **)&p, 10);
1462 frame_height = strtol(p, (char **)&p, 10);
1464 if (frame_width <= 0 || frame_height <= 0)
1466 *width_ptr = frame_width;
1467 *height_ptr = frame_height;
1471 int av_parse_video_frame_rate(AVRational *frame_rate, const char *arg)
1474 int n = FF_ARRAY_ELEMS(video_frame_rate_abbrs);
1477 /* First, we check our abbreviation table */
1478 for (i = 0; i < n; ++i)
1479 if (!strcmp(video_frame_rate_abbrs[i].abbr, arg)) {
1480 frame_rate->num = video_frame_rate_abbrs[i].rate_num;
1481 frame_rate->den = video_frame_rate_abbrs[i].rate_den;
1485 /* Then, we try to parse it as fraction */
1486 cp = strchr(arg, '/');
1488 cp = strchr(arg, ':');
1491 frame_rate->num = strtol(arg, &cpp, 10);
1492 if (cpp != arg || cpp == cp)
1493 frame_rate->den = strtol(cp+1, &cpp, 10);
1495 frame_rate->num = 0;
1498 /* Finally we give up and parse it as double */
1499 AVRational time_base = av_d2q(strtod(arg, 0), 1001000);
1500 frame_rate->den = time_base.den;
1501 frame_rate->num = time_base.num;
1503 if (!frame_rate->num || !frame_rate->den)
1509 void av_log_missing_feature(void *avc, const char *feature, int want_sample)
1511 av_log(avc, AV_LOG_WARNING, "%s not implemented. Update your FFmpeg "
1512 "version to the newest one from SVN. If the problem still "
1513 "occurs, it means that your file has a feature which has not "
1514 "been implemented.", feature);
1516 av_log(avc, AV_LOG_WARNING, " If you want to help, upload a sample "
1517 "of this file to ftp://upload.mplayerhq.hu/MPlayer/incoming/ "
1518 "and contact the FFmpeg-devel mailing list.");
1519 av_log(avc, AV_LOG_WARNING, "\n");