diff options
Diffstat (limited to 'src/libffmpeg/libavcodec/utils.c')
| -rw-r--r-- | src/libffmpeg/libavcodec/utils.c | 1354 |
1 files changed, 0 insertions, 1354 deletions
diff --git a/src/libffmpeg/libavcodec/utils.c b/src/libffmpeg/libavcodec/utils.c deleted file mode 100644 index f6f061360..000000000 --- a/src/libffmpeg/libavcodec/utils.c +++ /dev/null @@ -1,1354 +0,0 @@ -/* - * utils for libavcodec - * Copyright (c) 2001 Fabrice Bellard. - * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at> - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -/** - * @file utils.c - * utils. - */ - -#include "avcodec.h" -#include "dsputil.h" -#include "mpegvideo.h" -#include "integer.h" -#include "opt.h" -#include "crc.h" -#include <stdarg.h> -#include <limits.h> -#include <float.h> -#ifdef __MINGW32__ -#include <fcntl.h> -#endif - -const uint8_t ff_reverse[256]={ -0x00,0x80,0x40,0xC0,0x20,0xA0,0x60,0xE0,0x10,0x90,0x50,0xD0,0x30,0xB0,0x70,0xF0, -0x08,0x88,0x48,0xC8,0x28,0xA8,0x68,0xE8,0x18,0x98,0x58,0xD8,0x38,0xB8,0x78,0xF8, -0x04,0x84,0x44,0xC4,0x24,0xA4,0x64,0xE4,0x14,0x94,0x54,0xD4,0x34,0xB4,0x74,0xF4, -0x0C,0x8C,0x4C,0xCC,0x2C,0xAC,0x6C,0xEC,0x1C,0x9C,0x5C,0xDC,0x3C,0xBC,0x7C,0xFC, -0x02,0x82,0x42,0xC2,0x22,0xA2,0x62,0xE2,0x12,0x92,0x52,0xD2,0x32,0xB2,0x72,0xF2, -0x0A,0x8A,0x4A,0xCA,0x2A,0xAA,0x6A,0xEA,0x1A,0x9A,0x5A,0xDA,0x3A,0xBA,0x7A,0xFA, -0x06,0x86,0x46,0xC6,0x26,0xA6,0x66,0xE6,0x16,0x96,0x56,0xD6,0x36,0xB6,0x76,0xF6, -0x0E,0x8E,0x4E,0xCE,0x2E,0xAE,0x6E,0xEE,0x1E,0x9E,0x5E,0xDE,0x3E,0xBE,0x7E,0xFE, -0x01,0x81,0x41,0xC1,0x21,0xA1,0x61,0xE1,0x11,0x91,0x51,0xD1,0x31,0xB1,0x71,0xF1, -0x09,0x89,0x49,0xC9,0x29,0xA9,0x69,0xE9,0x19,0x99,0x59,0xD9,0x39,0xB9,0x79,0xF9, -0x05,0x85,0x45,0xC5,0x25,0xA5,0x65,0xE5,0x15,0x95,0x55,0xD5,0x35,0xB5,0x75,0xF5, -0x0D,0x8D,0x4D,0xCD,0x2D,0xAD,0x6D,0xED,0x1D,0x9D,0x5D,0xDD,0x3D,0xBD,0x7D,0xFD, -0x03,0x83,0x43,0xC3,0x23,0xA3,0x63,0xE3,0x13,0x93,0x53,0xD3,0x33,0xB3,0x73,0xF3, -0x0B,0x8B,0x4B,0xCB,0x2B,0xAB,0x6B,0xEB,0x1B,0x9B,0x5B,0xDB,0x3B,0xBB,0x7B,0xFB, -0x07,0x87,0x47,0xC7,0x27,0xA7,0x67,0xE7,0x17,0x97,0x57,0xD7,0x37,0xB7,0x77,0xF7, -0x0F,0x8F,0x4F,0xCF,0x2F,0xAF,0x6F,0xEF,0x1F,0x9F,0x5F,0xDF,0x3F,0xBF,0x7F,0xFF, -}; - -static int volatile entangled_thread_counter=0; - -/** - * realloc which does nothing if the block is large enough - */ -void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size) -{ - if(min_size < *size) - return ptr; - - *size= FFMAX(17*min_size/16 + 32, min_size); - - return av_realloc(ptr, *size); -} - -static unsigned int last_static = 0; -static unsigned int allocated_static = 0; -static void** array_static = NULL; - -/** - * allocation of static arrays - do not use for normal allocation. - */ -void *av_mallocz_static(unsigned int size) -{ - void *ptr = av_mallocz(size); - - if(ptr){ - array_static =av_fast_realloc(array_static, &allocated_static, sizeof(void*)*(last_static+1)); - if(!array_static) - return NULL; - array_static[last_static++] = ptr; - } - - return ptr; -} - -/** - * same as above, but does realloc - */ - -void *av_realloc_static(void *ptr, unsigned int size) -{ - int i; - if(!ptr) - return av_mallocz_static(size); - /* Look for the old ptr */ - for(i = 0; i < last_static; i++) { - if(array_static[i] == ptr) { - array_static[i] = av_realloc(array_static[i], size); - return array_static[i]; - } - } - return NULL; - -} - -/** - * free all static arrays and reset pointers to 0. - */ -void av_free_static(void) -{ - while(last_static){ - av_freep(&array_static[--last_static]); - } - av_freep(&array_static); -} - -/** - * Call av_free_static automatically before it's too late - */ - -static void do_free(void) __attribute__ ((destructor)); - -static void do_free(void) -{ - av_free_static(); -} - - -/* encoder management */ -AVCodec *first_avcodec = NULL; - -void register_avcodec(AVCodec *format) -{ - AVCodec **p; - p = &first_avcodec; - while (*p != NULL) p = &(*p)->next; - *p = format; - format->next = NULL; -} - -void avcodec_set_dimensions(AVCodecContext *s, int width, int height){ - s->coded_width = width; - s->coded_height= height; - s->width = -((-width )>>s->lowres); - s->height= -((-height)>>s->lowres); -} - -typedef struct InternalBuffer{ - int last_pic_num; - uint8_t *base[4]; - uint8_t *data[4]; - int linesize[4]; -}InternalBuffer; - -#define INTERNAL_BUFFER_SIZE 32 - -#define ALIGN(x, a) (((x)+(a)-1)&~((a)-1)) - -void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height){ - int w_align= 1; - int h_align= 1; - - switch(s->pix_fmt){ - case PIX_FMT_YUV420P: - case PIX_FMT_YUV422: - case PIX_FMT_UYVY422: - case PIX_FMT_YUV422P: - case PIX_FMT_YUV444P: - case PIX_FMT_GRAY8: - case PIX_FMT_GRAY16BE: - case PIX_FMT_GRAY16LE: - case PIX_FMT_YUVJ420P: - case PIX_FMT_YUVJ422P: - case PIX_FMT_YUVJ444P: - w_align= 16; //FIXME check for non mpeg style codecs and use less alignment - h_align= 16; - break; - case PIX_FMT_YUV411P: - case PIX_FMT_UYVY411: - w_align=32; - h_align=8; - break; - case PIX_FMT_YUV410P: - if(s->codec_id == CODEC_ID_SVQ1){ - w_align=64; - h_align=64; - } - case PIX_FMT_RGB555: - if(s->codec_id == CODEC_ID_RPZA){ - w_align=4; - h_align=4; - } - case PIX_FMT_PAL8: - if(s->codec_id == CODEC_ID_SMC){ - w_align=4; - h_align=4; - } - break; - case PIX_FMT_BGR24: - if((s->codec_id == CODEC_ID_MSZH) || (s->codec_id == CODEC_ID_ZLIB)){ - w_align=4; - h_align=4; - } - break; - default: - w_align= 1; - h_align= 1; - break; - } - - *width = ALIGN(*width , w_align); - *height= ALIGN(*height, h_align); -} - -int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h){ - if((int)w>0 && (int)h>0 && (w+128)*(uint64_t)(h+128) < INT_MAX/4) - return 0; - - av_log(av_log_ctx, AV_LOG_ERROR, "picture size invalid (%ux%u)\n", w, h); - return -1; -} - -int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic){ - int i; - int w= s->width; - int h= s->height; - InternalBuffer *buf; - int *picture_number; - - assert(pic->data[0]==NULL); - assert(INTERNAL_BUFFER_SIZE > s->internal_buffer_count); - - if(avcodec_check_dimensions(s,w,h)) - return -1; - - if(s->internal_buffer==NULL){ - s->internal_buffer= av_mallocz(INTERNAL_BUFFER_SIZE*sizeof(InternalBuffer)); - } -#if 0 - s->internal_buffer= av_fast_realloc( - s->internal_buffer, - &s->internal_buffer_size, - sizeof(InternalBuffer)*FFMAX(99, s->internal_buffer_count+1)/*FIXME*/ - ); -#endif - - buf= &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count]; - picture_number= &(((InternalBuffer*)s->internal_buffer)[INTERNAL_BUFFER_SIZE-1]).last_pic_num; //FIXME ugly hack - (*picture_number)++; - - if(buf->base[0]){ - pic->age= *picture_number - buf->last_pic_num; - buf->last_pic_num= *picture_number; - }else{ - int h_chroma_shift, v_chroma_shift; - int pixel_size, size[3]; - AVPicture picture; - - avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift); - - avcodec_align_dimensions(s, &w, &h); - - if(!(s->flags&CODEC_FLAG_EMU_EDGE)){ - w+= EDGE_WIDTH*2; - h+= EDGE_WIDTH*2; - } - avpicture_fill(&picture, NULL, s->pix_fmt, w, h); - pixel_size= picture.linesize[0]*8 / w; -//av_log(NULL, AV_LOG_ERROR, "%d %d %d %d\n", (int)picture.data[1], w, h, s->pix_fmt); - assert(pixel_size>=1); - //FIXME next ensures that linesize= 2^x uvlinesize, thats needed because some MC code assumes it - if(pixel_size == 3*8) - w= ALIGN(w, STRIDE_ALIGN<<h_chroma_shift); - else - w= ALIGN(pixel_size*w, STRIDE_ALIGN<<(h_chroma_shift+3)) / pixel_size; - size[1] = avpicture_fill(&picture, NULL, s->pix_fmt, w, h); - size[0] = picture.linesize[0] * h; - size[1] -= size[0]; - if(picture.data[2]) - size[1]= size[2]= size[1]/2; - else - size[2]= 0; - - buf->last_pic_num= -256*256*256*64; - memset(buf->base, 0, sizeof(buf->base)); - memset(buf->data, 0, sizeof(buf->data)); - - for(i=0; i<3 && size[i]; i++){ - const int h_shift= i==0 ? 0 : h_chroma_shift; - const int v_shift= i==0 ? 0 : v_chroma_shift; - - buf->linesize[i]= picture.linesize[i]; - - buf->base[i]= av_malloc(size[i]+16); //FIXME 16 - if(buf->base[i]==NULL) return -1; - memset(buf->base[i], 128, size[i]); - - // no edge if EDEG EMU or not planar YUV, we check for PAL8 redundantly to protect against a exploitable bug regression ... - if((s->flags&CODEC_FLAG_EMU_EDGE) || (s->pix_fmt == PIX_FMT_PAL8) || !size[2]) - buf->data[i] = buf->base[i]; - else - buf->data[i] = buf->base[i] + ALIGN((buf->linesize[i]*EDGE_WIDTH>>v_shift) + (EDGE_WIDTH>>h_shift), STRIDE_ALIGN); - } - pic->age= 256*256*256*64; - } - pic->type= FF_BUFFER_TYPE_INTERNAL; - - for(i=0; i<4; i++){ - pic->base[i]= buf->base[i]; - pic->data[i]= buf->data[i]; - pic->linesize[i]= buf->linesize[i]; - } - s->internal_buffer_count++; - - return 0; -} - -void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic){ - int i; - InternalBuffer *buf, *last, temp; - - assert(pic->type==FF_BUFFER_TYPE_INTERNAL); - assert(s->internal_buffer_count); - - buf = NULL; /* avoids warning */ - for(i=0; i<s->internal_buffer_count; i++){ //just 3-5 checks so is not worth to optimize - buf= &((InternalBuffer*)s->internal_buffer)[i]; - if(buf->data[0] == pic->data[0]) - break; - } - assert(i < s->internal_buffer_count); - s->internal_buffer_count--; - last = &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count]; - - temp= *buf; - *buf= *last; - *last= temp; - - for(i=0; i<3; i++){ - pic->data[i]=NULL; -// pic->base[i]=NULL; - } -//printf("R%X\n", pic->opaque); -} - -int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic){ - AVFrame temp_pic; - int i; - - /* If no picture return a new buffer */ - if(pic->data[0] == NULL) { - /* We will copy from buffer, so must be readable */ - pic->buffer_hints |= FF_BUFFER_HINTS_READABLE; - return s->get_buffer(s, pic); - } - - /* If internal buffer type return the same buffer */ - if(pic->type == FF_BUFFER_TYPE_INTERNAL) - return 0; - - /* - * Not internal type and reget_buffer not overridden, emulate cr buffer - */ - temp_pic = *pic; - for(i = 0; i < 4; i++) - pic->data[i] = pic->base[i] = NULL; - pic->opaque = NULL; - /* Allocate new frame */ - if (s->get_buffer(s, pic)) - return -1; - /* Copy image data from old buffer to new buffer */ - img_copy((AVPicture*)pic, (AVPicture*)&temp_pic, s->pix_fmt, s->width, - s->height); - s->release_buffer(s, &temp_pic); // Release old frame - return 0; -} - -int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count){ - int i; - - for(i=0; i<count; i++){ - int r= func(c, arg[i]); - if(ret) ret[i]= r; - } - return 0; -} - -enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt){ - return fmt[0]; -} - -static const char* context_to_name(void* ptr) { - AVCodecContext *avc= ptr; - - if(avc && avc->codec && avc->codec->name) - return avc->codec->name; - else - return "NULL"; -} - -#define OFFSET(x) offsetof(AVCodecContext,x) -#define DEFAULT 0 //should be NAN but it doesnt work as its not a constant in glibc as required by ANSI/ISO C -//these names are too long to be readable -#define V AV_OPT_FLAG_VIDEO_PARAM -#define A AV_OPT_FLAG_AUDIO_PARAM -#define S AV_OPT_FLAG_SUBTITLE_PARAM -#define E AV_OPT_FLAG_ENCODING_PARAM -#define D AV_OPT_FLAG_DECODING_PARAM - -#define AV_CODEC_DEFAULT_BITRATE 200*1000 - -static const AVOption options[]={ -{"b", "set video bitrate (in bits/s)", OFFSET(bit_rate), FF_OPT_TYPE_INT, AV_CODEC_DEFAULT_BITRATE, INT_MIN, INT_MAX, V|A|E}, -{"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}, -{"flags", NULL, OFFSET(flags), FF_OPT_TYPE_FLAGS, DEFAULT, INT_MIN, INT_MAX, V|A|E|D, "flags"}, -{"mv4", "use four motion vector by macroblock (mpeg4)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_4MV, INT_MIN, INT_MAX, V|E, "flags"}, -{"obmc", "use overlapped block motion compensation (h263+)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_OBMC, INT_MIN, INT_MAX, V|E, "flags"}, -{"qpel", "use 1/4 pel motion compensation", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_QPEL, INT_MIN, INT_MAX, V|E, "flags"}, -{"loop", "use loop filter", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_LOOP_FILTER, INT_MIN, INT_MAX, V|E, "flags"}, -{"qscale", "use fixed qscale", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_QSCALE, INT_MIN, INT_MAX, 0, "flags"}, -{"gmc", "use gmc", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_GMC, INT_MIN, INT_MAX, V|E, "flags"}, -{"mv0", "always try a mb with mv=<0,0>", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_MV0, INT_MIN, INT_MAX, V|E, "flags"}, -{"part", "use data partitioning", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PART, INT_MIN, INT_MAX, V|E, "flags"}, -{"input_preserved", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG_INPUT_PRESERVED, INT_MIN, INT_MAX, 0, "flags"}, -{"pass1", "use internal 2pass ratecontrol in first pass mode", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PASS1, INT_MIN, INT_MAX, 0, "flags"}, -{"pass2", "use internal 2pass ratecontrol in second pass mode", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PASS2, INT_MIN, INT_MAX, 0, "flags"}, -{"extern_huff", "use external huffman table (for mjpeg)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_EXTERN_HUFF, INT_MIN, INT_MAX, 0, "flags"}, -{"gray", "only decode/encode grayscale", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_GRAY, INT_MIN, INT_MAX, V|E|D, "flags"}, -{"emu_edge", "don't draw edges", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_EMU_EDGE, INT_MIN, INT_MAX, 0, "flags"}, -{"psnr", "error[?] variables will be set during encoding", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PSNR, INT_MIN, INT_MAX, V|E, "flags"}, -{"truncated", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG_TRUNCATED, INT_MIN, INT_MAX, 0, "flags"}, -{"naq", "normalize adaptive quantization", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_NORMALIZE_AQP, INT_MIN, INT_MAX, V|E, "flags"}, -{"ildct", "use interlaced dct", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_INTERLACED_DCT, INT_MIN, INT_MAX, V|E, "flags"}, -{"low_delay", "force low delay", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_LOW_DELAY, INT_MIN, INT_MAX, V|D|E, "flags"}, -{"alt", "enable alternate scantable (mpeg2/mpeg4)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_ALT_SCAN, INT_MIN, INT_MAX, V|E, "flags"}, -{"trell", "use trellis quantization", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_TRELLIS_QUANT, INT_MIN, INT_MAX, V|E, "flags"}, -{"global_header", "place global headers in extradata instead of every keyframe", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_GLOBAL_HEADER, INT_MIN, INT_MAX, 0, "flags"}, -{"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"}, -{"aic", "h263 advanced intra coding / mpeg4 ac prediction", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_AC_PRED, INT_MIN, INT_MAX, V|E, "flags"}, -{"umv", "use unlimited motion vectors", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_H263P_UMV, INT_MIN, INT_MAX, V|E, "flags"}, -{"cbp", "use rate distortion optimization for cbp", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_CBP_RD, INT_MIN, INT_MAX, V|E, "flags"}, -{"qprd", "use rate distortion optimization for qp selection", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_QP_RD, INT_MIN, INT_MAX, V|E, "flags"}, -{"aiv", "h263 alternative inter vlc", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_H263P_AIV, INT_MIN, INT_MAX, V|E, "flags"}, -{"slice", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG_H263P_SLICE_STRUCT, INT_MIN, INT_MAX, V|E, "flags"}, -{"ilme", "interlaced motion estimation", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_INTERLACED_ME, INT_MIN, INT_MAX, V|E, "flags"}, -{"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"}, -{"cgop", "closed gop", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_CLOSED_GOP, INT_MIN, INT_MAX, V|E, "flags"}, -{"fast", "allow non spec compliant speedup tricks", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_FAST, INT_MIN, INT_MAX, V|E, "flags2"}, -{"sgop", "strictly enforce gop size", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_STRICT_GOP, INT_MIN, INT_MAX, V|E, "flags2"}, -{"noout", "skip bitstream encoding", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_NO_OUTPUT, INT_MIN, INT_MAX, V|E, "flags2"}, -{"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"}, -{"sub_id", NULL, OFFSET(sub_id), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX}, -{"me_method", "set motion estimation method", OFFSET(me_method), FF_OPT_TYPE_INT, ME_EPZS, INT_MIN, INT_MAX, V|E, "me_method"}, -{"extradata_size", NULL, OFFSET(extradata_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX}, -{"time_base", NULL, OFFSET(time_base), FF_OPT_TYPE_RATIONAL, DEFAULT, INT_MIN, INT_MAX}, -{"g", "set the group of picture size", OFFSET(gop_size), FF_OPT_TYPE_INT, 12, INT_MIN, INT_MAX, V|E}, -{"rate_emu", "frame rate emulation", OFFSET(rate_emu), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX}, -{"ar", "set audio sampling rate (in Hz)", OFFSET(sample_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX}, -{"ac", "set number of audio channels", OFFSET(channels), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX}, -{"cutoff", "set cutoff bandwidth", OFFSET(cutoff), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, A|E}, -{"frame_size", NULL, OFFSET(frame_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, A|E}, -{"frame_number", NULL, OFFSET(frame_number), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX}, -{"real_pict_num", NULL, OFFSET(real_pict_num), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX}, -{"delay", NULL, OFFSET(delay), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX}, -{"qcomp", "video quantizer scale compression (VBR)", OFFSET(qcompress), FF_OPT_TYPE_FLOAT, 0.5, FLT_MIN, FLT_MAX, V|E}, -{"qblur", "video quantizer scale blur (VBR)", OFFSET(qblur), FF_OPT_TYPE_FLOAT, 0.5, FLT_MIN, FLT_MAX, V|E}, -{"qmin", "min video quantizer scale (VBR)", OFFSET(qmin), FF_OPT_TYPE_INT, 2, 1, 51, V|E}, -{"qmax", "max video quantizer scale (VBR)", OFFSET(qmax), FF_OPT_TYPE_INT, 31, 1, 51, V|E}, -{"qdiff", "max difference between the quantizer scale (VBR)", OFFSET(max_qdiff), FF_OPT_TYPE_INT, 3, INT_MIN, INT_MAX, V|E}, -{"bf", "use 'frames' B frames", OFFSET(max_b_frames), FF_OPT_TYPE_INT, DEFAULT, 0, FF_MAX_B_FRAMES, V|E}, -{"b_qfactor", "qp factor between p and b frames", OFFSET(b_quant_factor), FF_OPT_TYPE_FLOAT, 1.25, FLT_MIN, FLT_MAX, V|E}, -{"rc_strategy", "ratecontrol method", OFFSET(rc_strategy), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E}, -{"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}, -{"hurry_up", NULL, OFFSET(hurry_up), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D}, -{"rtp_mode", NULL, OFFSET(rtp_mode), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX}, -{"rtp_payload_size", NULL, OFFSET(rtp_payload_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX}, -{"mv_bits", NULL, OFFSET(mv_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX}, -{"header_bits", NULL, OFFSET(header_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX}, -{"i_tex_bits", NULL, OFFSET(i_tex_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX}, -{"p_tex_bits", NULL, OFFSET(p_tex_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX}, -{"i_count", NULL, OFFSET(i_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX}, -{"p_count", NULL, OFFSET(p_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX}, -{"skip_count", NULL, OFFSET(skip_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX}, -{"misc_bits", NULL, OFFSET(misc_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX}, -{"frame_bits", NULL, OFFSET(frame_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX}, -{"codec_tag", NULL, OFFSET(codec_tag), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX}, -{"bug", "workaround not auto detected encoder bugs", OFFSET(workaround_bugs), FF_OPT_TYPE_FLAGS, FF_BUG_AUTODETECT, INT_MIN, INT_MAX, V|D, "bug"}, -{"autodetect", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_AUTODETECT, INT_MIN, INT_MAX, V|D, "bug"}, -{"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"}, -{"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"}, -{"ump4", "(autodetected if fourcc==UMP4)", 0, FF_OPT_TYPE_CONST, FF_BUG_UMP4, INT_MIN, INT_MAX, V|D, "bug"}, -{"no_padding", "padding bug (autodetected)", 0, FF_OPT_TYPE_CONST, FF_BUG_NO_PADDING, INT_MIN, INT_MAX, V|D, "bug"}, -{"amv", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_AMV, INT_MIN, INT_MAX, V|D, "bug"}, -{"ac_vlc", "illegal vlc bug (autodetected per fourcc)", 0, FF_OPT_TYPE_CONST, FF_BUG_AC_VLC, INT_MIN, INT_MAX, V|D, "bug"}, -{"qpel_chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_QPEL_CHROMA, INT_MIN, INT_MAX, V|D, "bug"}, -{"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"}, -{"qpel_chroma2", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_QPEL_CHROMA2, INT_MIN, INT_MAX, V|D, "bug"}, -{"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"}, -{"edge", "edge padding bug (autodetected per fourcc/version)", 0, FF_OPT_TYPE_CONST, FF_BUG_EDGE, INT_MIN, INT_MAX, V|D, "bug"}, -{"hpel_chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_HPEL_CHROMA, INT_MIN, INT_MAX, V|D, "bug"}, -{"dc_clip", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_DC_CLIP, INT_MIN, INT_MAX, V|D, "bug"}, -{"ms", "workaround various bugs in microsofts broken decoders", 0, FF_OPT_TYPE_CONST, FF_BUG_MS, INT_MIN, INT_MAX, V|D, "bug"}, -{"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}, -{"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}, -{"strict", "how strictly to follow the standards", OFFSET(strict_std_compliance), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, A|V|D, "strict"}, -{"very", "strictly conform to a older more strict version of the spec or reference software", 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_VERY_STRICT, INT_MIN, INT_MAX, V|E, "strict"}, -{"strict", "strictly conform to all the things in the spec no matter what consequences", 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_STRICT, INT_MIN, INT_MAX, V|E, "strict"}, -{"normal", NULL, 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_NORMAL, INT_MIN, INT_MAX, V|E, "strict"}, -{"inofficial", "allow inofficial extensions", 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_INOFFICIAL, INT_MIN, INT_MAX, V|E, "strict"}, -{"experimental", "allow non standarized experimental things", 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_EXPERIMENTAL, INT_MIN, INT_MAX, V|E, "strict"}, -{"b_qoffset", "qp offset between p and b frames", OFFSET(b_quant_offset), FF_OPT_TYPE_FLOAT, 1.25, FLT_MIN, FLT_MAX, V|E}, -{"er", "set error resilience strategy", OFFSET(error_resilience), FF_OPT_TYPE_INT, FF_ER_CAREFUL, INT_MIN, INT_MAX, A|V|D, "er"}, -{"careful", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_CAREFUL, INT_MIN, INT_MAX, V|D, "er"}, -{"compliant", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_COMPLIANT, INT_MIN, INT_MAX, V|D, "er"}, -{"aggressive", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_AGGRESSIVE, INT_MIN, INT_MAX, V|D, "er"}, -{"very_aggressive", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_VERY_AGGRESSIVE, INT_MIN, INT_MAX, V|D, "er"}, -{"has_b_frames", NULL, OFFSET(has_b_frames), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX}, -{"block_align", NULL, OFFSET(block_align), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX}, -{"parse_only", NULL, OFFSET(parse_only), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX}, -{"mpeg_quant", "use MPEG quantizers instead of H.263", OFFSET(mpeg_quant), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E}, -{"stats_out", NULL, OFFSET(stats_out), FF_OPT_TYPE_STRING, DEFAULT, CHAR_MIN, CHAR_MAX}, -{"stats_in", NULL, OFFSET(stats_in), FF_OPT_TYPE_STRING, DEFAULT, CHAR_MIN, CHAR_MAX}, -{"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}, -{"rc_qmod_amp", "experimental quantizer modulation", OFFSET(rc_qmod_amp), FF_OPT_TYPE_FLOAT, DEFAULT, -FLT_MAX, FLT_MAX, V|E}, -{"rc_qmod_freq", "experimental quantizer modulation", OFFSET(rc_qmod_freq), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E}, -{"rc_override_count", NULL, OFFSET(rc_override_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX}, -{"rc_eq", "set rate control equation", OFFSET(rc_eq), FF_OPT_TYPE_STRING, DEFAULT, CHAR_MIN, CHAR_MAX, V|E}, -{"maxrate", "set max video bitrate tolerance (in bits/s)", OFFSET(rc_max_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E}, -{"minrate", "set min video bitrate tolerance (in bits/s)", OFFSET(rc_min_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E}, -{"bufsize", "set ratecontrol buffer size (in bits)", OFFSET(rc_buffer_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E}, -{"rc_buf_aggressivity", "currently useless", OFFSET(rc_buffer_aggressivity), FF_OPT_TYPE_FLOAT, 1.0, FLT_MIN, FLT_MAX, V|E}, -{"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}, -{"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}, -{"rc_init_cplx", "initial complexity for 1-pass encoding", OFFSET(rc_initial_cplx), FF_OPT_TYPE_FLOAT, DEFAULT, -FLT_MAX, FLT_MAX, V|E}, -{"dct", "DCT algorithm", OFFSET(dct_algo), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, V|E, "dct"}, -{"auto", "autoselect a good one (default)", 0, FF_OPT_TYPE_CONST, FF_DCT_AUTO, INT_MIN, INT_MAX, V|E, "dct"}, -{"fastint", "fast integer", 0, FF_OPT_TYPE_CONST, FF_DCT_FASTINT, INT_MIN, INT_MAX, V|E, "dct"}, -{"int", "accurate integer", 0, FF_OPT_TYPE_CONST, FF_DCT_INT, INT_MIN, INT_MAX, V|E, "dct"}, -{"mmx", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_MMX, INT_MIN, INT_MAX, V|E, "dct"}, -{"mlib", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_MLIB, INT_MIN, INT_MAX, V|E, "dct"}, -{"altivec", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_ALTIVEC, INT_MIN, INT_MAX, V|E, "dct"}, -{"faan", "floating point AAN DCT", 0, FF_OPT_TYPE_CONST, FF_DCT_FAAN, INT_MIN, INT_MAX, V|E, "dct"}, -{"lumi_mask", "compresses bright areas stronger than medium ones", OFFSET(lumi_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E}, -{"tcplx_mask", "temporal complexity masking", OFFSET(temporal_cplx_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E}, -{"scplx_mask", "spatial complexity masking", OFFSET(spatial_cplx_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E}, -{"p_mask", "inter masking", OFFSET(p_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E}, -{"dark_mask", "compresses dark areas stronger than medium ones", OFFSET(dark_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E}, -{"unused", NULL, OFFSET(unused), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX}, -{"idct", "select IDCT implementation", OFFSET(idct_algo), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, V|E|D, "idct"}, -{"auto", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_AUTO, INT_MIN, INT_MAX, V|E|D, "idct"}, -{"int", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_INT, INT_MIN, INT_MAX, V|E|D, "idct"}, -{"simple", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLE, INT_MIN, INT_MAX, V|E|D, "idct"}, -{"simplemmx", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEMMX, INT_MIN, INT_MAX, V|E|D, "idct"}, -{"libmpeg2mmx", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_LIBMPEG2MMX, INT_MIN, INT_MAX, V|E|D, "idct"}, -{"ps2", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_PS2, INT_MIN, INT_MAX, V|E|D, "idct"}, -{"mlib", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_MLIB, INT_MIN, INT_MAX, V|E|D, "idct"}, -{"arm", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_ARM, INT_MIN, INT_MAX, V|E|D, "idct"}, -{"altivec", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_ALTIVEC, INT_MIN, INT_MAX, V|E|D, "idct"}, -{"sh4", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SH4, INT_MIN, INT_MAX, V|E|D, "idct"}, -{"simplearm", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEARM, INT_MIN, INT_MAX, V|E|D, "idct"}, -{"simplearmv5te", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEARMV5TE, INT_MIN, INT_MAX, V|E|D, "idct"}, -{"h264", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_H264, INT_MIN, INT_MAX, V|E|D, "idct"}, -{"vp3", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_VP3, INT_MIN, INT_MAX, V|E|D, "idct"}, -{"ipp", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_IPP, INT_MIN, INT_MAX, V|E|D, "idct"}, -{"xvidmmx", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_XVIDMMX, INT_MIN, INT_MAX, V|E|D, "idct"}, -{"slice_count", NULL, OFFSET(slice_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX}, -{"ec", "set error concealment strategy", OFFSET(error_concealment), FF_OPT_TYPE_FLAGS, 3, INT_MIN, INT_MAX, V|D, "ec"}, -{"guess_mvs", "iterative motion vector (MV) search (slow)", 0, FF_OPT_TYPE_CONST, FF_EC_GUESS_MVS, INT_MIN, INT_MAX, V|D, "ec"}, -{"deblock", "use strong deblock filter for damaged MBs", 0, FF_OPT_TYPE_CONST, FF_EC_DEBLOCK, INT_MIN, INT_MAX, V|D, "ec"}, -{"bits_per_sample", NULL, OFFSET(bits_per_sample), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX}, -{"pred", "prediction method", OFFSET(prediction_method), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "pred"}, -{"left", NULL, 0, FF_OPT_TYPE_CONST, FF_PRED_LEFT, INT_MIN, INT_MAX, V|E, "pred"}, -{"plane", NULL, 0, FF_OPT_TYPE_CONST, FF_PRED_PLANE, INT_MIN, INT_MAX, V|E, "pred"}, -{"median", NULL, 0, FF_OPT_TYPE_CONST, FF_PRED_MEDIAN, INT_MIN, INT_MAX, V|E, "pred"}, -{"aspect", "sample aspect ratio", OFFSET(sample_aspect_ratio), FF_OPT_TYPE_RATIONAL, DEFAULT, 0, 10, V|E}, -{"debug", "print specific debug info", OFFSET(debug), FF_OPT_TYPE_FLAGS, DEFAULT, 0, INT_MAX, V|A|S|E|D, "debug"}, -{"pict", "picture info", 0, FF_OPT_TYPE_CONST, FF_DEBUG_PICT_INFO, INT_MIN, INT_MAX, V|D, "debug"}, -{"rc", "rate control", 0, FF_OPT_TYPE_CONST, FF_DEBUG_RC, INT_MIN, INT_MAX, V|E, "debug"}, -{"bitstream", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_BITSTREAM, INT_MIN, INT_MAX, V|D, "debug"}, -{"mb_type", "macroblock (MB) type", 0, FF_OPT_TYPE_CONST, FF_DEBUG_MB_TYPE, INT_MIN, INT_MAX, V|D, "debug"}, -{"qp", "per-block quantization parameter (QP)", 0, FF_OPT_TYPE_CONST, FF_DEBUG_QP, INT_MIN, INT_MAX, V|D, "debug"}, -{"mv", "motion vector", 0, FF_OPT_TYPE_CONST, FF_DEBUG_MV, INT_MIN, INT_MAX, V|D, "debug"}, -{"dct_coeff", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_DCT_COEFF, INT_MIN, INT_MAX, V|D, "debug"}, -{"skip", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_SKIP, INT_MIN, INT_MAX, V|D, "debug"}, -{"startcode", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_STARTCODE, INT_MIN, INT_MAX, V|D, "debug"}, -{"pts", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_PTS, INT_MIN, INT_MAX, V|D, "debug"}, -{"er", "error resilience", 0, FF_OPT_TYPE_CONST, FF_DEBUG_ER, INT_MIN, INT_MAX, V|D, "debug"}, -{"mmco", "memory management control operations (H.264)", 0, FF_OPT_TYPE_CONST, FF_DEBUG_MMCO, INT_MIN, INT_MAX, V|D, "debug"}, -{"bugs", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_BUGS, INT_MIN, INT_MAX, V|D, "debug"}, -{"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"}, -{"vis_mb_type", "visualize block types", 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_MB_TYPE, INT_MIN, INT_MAX, V|D, "debug"}, -{"vismv", "visualize motion vectors (MVs)", OFFSET(debug_mv), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, V|D, "debug_mv"}, -{"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"}, -{"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"}, -{"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"}, -{"mb_qmin", "obsolete, use qmin", OFFSET(mb_qmin), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E}, -{"mb_qmax", "obsolete, use qmax", OFFSET(mb_qmax), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E}, -{"cmp", "full pel me compare function", OFFSET(me_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"}, -{"subcmp", "sub pel me compare function", OFFSET(me_sub_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"}, -{"mbcmp", "macroblock compare function", OFFSET(mb_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"}, -{"ildctcmp", "interlaced dct compare function", OFFSET(ildct_cmp), FF_OPT_TYPE_INT, FF_CMP_VSAD, INT_MIN, INT_MAX, V|E, "cmp_func"}, -{"dia_size", "diamond type & size for motion estimation", OFFSET(dia_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E}, -{"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}, -{"preme", "pre motion estimation", OFFSET(pre_me), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E}, -{"precmp", "pre motion estimation compare function", OFFSET(me_pre_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"}, -{"sad", "sum of absolute differences, fast (default)", 0, FF_OPT_TYPE_CONST, FF_CMP_SAD, INT_MIN, INT_MAX, V|E, "cmp_func"}, -{"sse", "sum of squared errors", 0, FF_OPT_TYPE_CONST, FF_CMP_SSE, INT_MIN, INT_MAX, V|E, "cmp_func"}, -{"satd", "sum of absolute Hadamard transformed differences", 0, FF_OPT_TYPE_CONST, FF_CMP_SATD, INT_MIN, INT_MAX, V|E, "cmp_func"}, -{"dct", "sum of absolute DCT transformed differences", 0, FF_OPT_TYPE_CONST, FF_CMP_DCT, INT_MIN, INT_MAX, V|E, "cmp_func"}, -{"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"}, -{"bit", "number of bits needed for the block", 0, FF_OPT_TYPE_CONST, FF_CMP_BIT, INT_MIN, INT_MAX, V|E, "cmp_func"}, -{"rd", "rate distortion optimal, slow", 0, FF_OPT_TYPE_CONST, FF_CMP_RD, INT_MIN, INT_MAX, V|E, "cmp_func"}, -{"zero", "0", 0, FF_OPT_TYPE_CONST, FF_CMP_ZERO, INT_MIN, INT_MAX, V|E, "cmp_func"}, -{"vsad", "sum of absolute vertical differences", 0, FF_OPT_TYPE_CONST, FF_CMP_VSAD, INT_MIN, INT_MAX, V|E, "cmp_func"}, -{"vsse","sum of squared vertical differences", 0, FF_OPT_TYPE_CONST, FF_CMP_VSSE, INT_MIN, INT_MAX, V|E, "cmp_func"}, -{"nsse", "noise preserving sum of squared differences", 0, FF_OPT_TYPE_CONST, FF_CMP_NSSE, INT_MIN, INT_MAX, V|E, "cmp_func"}, -#ifdef CONFIG_SNOW_ENCODER -{"w53", "5/3 wavelet, only used in snow", 0, FF_OPT_TYPE_CONST, FF_CMP_W53, INT_MIN, INT_MAX, V|E, "cmp_func"}, -{"w97", "9/7 wavelet, only used in snow", 0, FF_OPT_TYPE_CONST, FF_CMP_W97, INT_MIN, INT_MAX, V|E, "cmp_func"}, -#endif -{"dctmax", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_DCTMAX, INT_MIN, INT_MAX, V|E, "cmp_func"}, -{"chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_CHROMA, INT_MIN, INT_MAX, V|E, "cmp_func"}, -{"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}, -{"subq", "sub pel motion estimation quality", OFFSET(me_subpel_quality), FF_OPT_TYPE_INT, 8, INT_MIN, INT_MAX, V|E}, -{"dtg_active_format", NULL, OFFSET(dtg_active_format), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX}, -{"me_range", "limit motion vectors range (1023 for DivX player)", OFFSET(me_range), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E}, -{"ibias", "intra quant bias", OFFSET(intra_quant_bias), FF_OPT_TYPE_INT, FF_DEFAULT_QUANT_BIAS, INT_MIN, INT_MAX, V|E}, -{"pbias", "inter quant bias", OFFSET(inter_quant_bias), FF_OPT_TYPE_INT, FF_DEFAULT_QUANT_BIAS, INT_MIN, INT_MAX, V|E}, -{"color_table_id", NULL, OFFSET(color_table_id), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX}, -{"internal_buffer_count", NULL, OFFSET(internal_buffer_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX}, -{"global_quality", NULL, OFFSET(global_quality), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX}, -{"coder", NULL, OFFSET(coder_type), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "coder"}, -{"vlc", "variable length coder / huffman coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_VLC, INT_MIN, INT_MAX, V|E, "coder"}, -{"ac", "arithmetic coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_AC, INT_MIN, INT_MAX, V|E, "coder"}, -{"context", "context model", OFFSET(context_model), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E}, -{"slice_flags", NULL, OFFSET(slice_flags), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX}, -{"xvmc_acceleration", NULL, OFFSET(xvmc_acceleration), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX}, -{"mbd", "macroblock decision algorithm (high quality mode)", OFFSET(mb_decision), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "mbd"}, -{"simple", "use mbcmp (default)", 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_SIMPLE, INT_MIN, INT_MAX, V|E, "mbd"}, -{"bits", "use fewest bits", 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_BITS, INT_MIN, INT_MAX, V|E, "mbd"}, -{"rd", "use best rate distortion", 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_RD, INT_MIN, INT_MAX, V|E, "mbd"}, -{"stream_codec_tag", NULL, OFFSET(stream_codec_tag), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX}, -{"sc_threshold", "scene change threshold", OFFSET(scenechange_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E}, -{"lmin", "min lagrange factor (VBR)", OFFSET(lmin), FF_OPT_TYPE_INT, 2*FF_QP2LAMBDA, 0, INT_MAX, V|E}, -{"lmax", "max lagrange factor (VBR)", OFFSET(lmax), FF_OPT_TYPE_INT, 31*FF_QP2LAMBDA, 0, INT_MAX, V|E}, -{"nr", "noise reduction", OFFSET(noise_reduction), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E}, -{"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}, -{"inter_threshold", NULL, OFFSET(inter_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E}, -{"flags2", NULL, OFFSET(flags2), FF_OPT_TYPE_FLAGS, CODEC_FLAG2_FASTPSKIP, INT_MIN, INT_MAX, V|A|E|D, "flags2"}, -{"error", NULL, OFFSET(error_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E}, -{"antialias", "MP3 antialias algorithm", OFFSET(antialias_algo), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D, "aa"}, -{"auto", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_AUTO, INT_MIN, INT_MAX, V|D, "aa"}, -{"fastint", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_FASTINT, INT_MIN, INT_MAX, V|D, "aa"}, -{"int", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_INT, INT_MIN, INT_MAX, V|D, "aa"}, -{"float", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_FLOAT, INT_MIN, INT_MAX, V|D, "aa"}, -{"qns", "quantizer noise shaping", OFFSET(quantizer_noise_shaping), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E}, -{"threads", NULL, OFFSET(thread_count), FF_OPT_TYPE_INT, 1, INT_MIN, INT_MAX, V|E|D}, -{"me_threshold", "motion estimaton threshold", OFFSET(me_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX}, -{"mb_threshold", "macroblock threshold", OFFSET(mb_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E}, -{"dc", "intra_dc_precision", OFFSET(intra_dc_precision), FF_OPT_TYPE_INT, 0, INT_MIN, INT_MAX, V|E}, -{"nssew", "nsse weight", OFFSET(nsse_weight), FF_OPT_TYPE_INT, 8, INT_MIN, INT_MAX, V|E}, -{"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}, -{"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}, -{"profile", NULL, OFFSET(profile), FF_OPT_TYPE_INT, FF_PROFILE_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "profile"}, -{"unknown", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "profile"}, -{"level", NULL, OFFSET(level), FF_OPT_TYPE_INT, FF_LEVEL_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "level"}, -{"unknown", NULL, 0, FF_OPT_TYPE_CONST, FF_LEVEL_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "level"}, -{"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}, -{"skip_threshold", "frame skip threshold", OFFSET(frame_skip_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E}, -{"skip_factor", "frame skip factor", OFFSET(frame_skip_factor), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E}, -{"skip_exp", "frame skip exponent", OFFSET(frame_skip_exp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E}, -{"skipcmp", "frame skip compare function", OFFSET(frame_skip_cmp), FF_OPT_TYPE_INT, FF_CMP_DCTMAX, INT_MIN, INT_MAX, V|E, "cmp_func"}, -{"border_mask", "increases the quantizer for macroblocks close to borders", OFFSET(border_masking), FF_OPT_TYPE_FLOAT, DEFAULT, -FLT_MAX, FLT_MAX, V|E}, -{"mblmin", "min macroblock lagrange factor (VBR)", OFFSET(mb_lmin), FF_OPT_TYPE_INT, FF_QP2LAMBDA * 2, 1, FF_LAMBDA_MAX, V|E}, -{"mblmax", "max macroblock lagrange factor (VBR)", OFFSET(mb_lmax), FF_OPT_TYPE_INT, FF_QP2LAMBDA * 31, 1, FF_LAMBDA_MAX, V|E}, -{"mepc", "motion estimation bitrate penalty compensation (1.0 = 256)", OFFSET(me_penalty_compensation), FF_OPT_TYPE_INT, 256, INT_MIN, INT_MAX, V|E}, -{"bidir_refine", "refine the two motion vectors used in bidirectional macroblocks", OFFSET(bidir_refine), FF_OPT_TYPE_INT, DEFAULT, 0, 4, V|E}, -{"brd_scale", "downscales frames for dynamic B-frame decision", OFFSET(brd_scale), FF_OPT_TYPE_INT, DEFAULT, 0, 10, V|E}, -{"crf", "enables constant quality mode, and selects the quality (x264)", OFFSET(crf), FF_OPT_TYPE_FLOAT, DEFAULT, 0, 51, V|E}, -{"cqp", "constant quantization parameter rate control method", OFFSET(cqp), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, V|E}, -{"keyint_min", "minimum interval between IDR-frames (x264)", OFFSET(keyint_min), FF_OPT_TYPE_INT, 25, INT_MIN, INT_MAX, V|E}, -{"refs", "reference frames to consider for motion compensation (Snow)", OFFSET(refs), FF_OPT_TYPE_INT, 1, INT_MIN, INT_MAX, V|E}, -{"chromaoffset", "chroma qp offset from luma", OFFSET(chromaoffset), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E}, -{"bframebias", "influences how often B-frames are used", OFFSET(bframebias), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E}, -{"trellis", "rate-distortion optimal quantization", OFFSET(trellis), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|A|E}, -{"directpred", "direct mv prediction mode - 0 (none), 1 (spatial), 2 (temporal)", OFFSET(directpred), FF_OPT_TYPE_INT, 2, INT_MIN, INT_MAX, V|E}, -{"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"}, -{"wpred", "weighted biprediction for b-frames (H.264)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_WPRED, INT_MIN, INT_MAX, V|E, "flags2"}, -{"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"}, -{"8x8dct", "high profile 8x8 transform (H.264)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_8X8DCT, INT_MIN, INT_MAX, V|E, "flags2"}, -{"fastpskip", "fast pskip (H.264)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_FASTPSKIP, INT_MIN, INT_MAX, V|E, "flags2"}, -{"aud", "access unit delimiters (H.264)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_AUD, INT_MIN, INT_MAX, V|E, "flags2"}, -{"brdo", "b-frame rate-distortion optimization", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_BRDO, INT_MIN, INT_MAX, V|E, "flags2"}, -{"skiprd", "RD optimal MB level residual skiping", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_SKIP_RD, INT_MIN, INT_MAX, V|E, "flags2"}, -{"complexityblur", "reduce fluctuations in qp (before curve compression)", OFFSET(complexityblur), FF_OPT_TYPE_FLOAT, 20.0, FLT_MIN, FLT_MAX, V|E}, -{"deblockalpha", "in-loop deblocking filter alphac0 parameter", OFFSET(deblockalpha), FF_OPT_TYPE_INT, DEFAULT, -6, 6, V|E}, -{"deblockbeta", "in-loop deblocking filter beta parameter", OFFSET(deblockbeta), FF_OPT_TYPE_INT, DEFAULT, -6, 6, V|E}, -{"partitions", "macroblock subpartition sizes to consider", OFFSET(partitions), FF_OPT_TYPE_FLAGS, DEFAULT, INT_MIN, INT_MAX, V|E, "partitions"}, -{"parti4x4", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_I4X4, INT_MIN, INT_MAX, V|E, "partitions"}, -{"parti8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_I8X8, INT_MIN, INT_MAX, V|E, "partitions"}, -{"partp4x4", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_P4X4, INT_MIN, INT_MAX, V|E, "partitions"}, -{"partp8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_P8X8, INT_MIN, INT_MAX, V|E, "partitions"}, -{"partb8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_B8X8, INT_MIN, INT_MAX, V|E, "partitions"}, -{"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}, -{"mv0_threshold", NULL, OFFSET(mv0_threshold), FF_OPT_TYPE_INT, 256, 0, INT_MAX, V|E}, -{"ivlc", "intra vlc table", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_INTRA_VLC, INT_MIN, INT_MAX, V|E, "flags2"}, -{"b_sensitivity", "adjusts sensitivity of b_frame_strategy 1", OFFSET(b_sensitivity), FF_OPT_TYPE_INT, 40, 1, INT_MAX, V|E}, -{"compression_level", NULL, OFFSET(compression_level), FF_OPT_TYPE_INT, FF_COMPRESSION_DEFAULT, INT_MIN, INT_MAX, V|A|E}, -{"use_lpc", "sets whether to use LPC mode (FLAC)", OFFSET(use_lpc), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E}, -{"lpc_coeff_precision", "LPC coefficient precision (FLAC)", OFFSET(lpc_coeff_precision), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, A|E}, -{"min_prediction_order", NULL, OFFSET(min_prediction_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E}, -{"max_prediction_order", NULL, OFFSET(max_prediction_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E}, -{"prediction_order_method", "search method for selecting prediction order", OFFSET(prediction_order_method), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E}, -{"min_partition_order", NULL, OFFSET(min_partition_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E}, -{"max_partition_order", NULL, OFFSET(max_partition_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E}, -{"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}, -{"drop_frame_timecode", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_DROP_FRAME_TIMECODE, INT_MIN, INT_MAX, V|E, "flags2"}, -{NULL}, -}; - -#undef A -#undef V -#undef S -#undef E -#undef D -#undef DEFAULT - -static AVClass av_codec_context_class = { "AVCodecContext", context_to_name, options }; - -void avcodec_get_context_defaults(AVCodecContext *s){ - memset(s, 0, sizeof(AVCodecContext)); - - s->av_class= &av_codec_context_class; - - av_opt_set_defaults(s); - - s->rc_eq= "tex^qComp"; - s->time_base= (AVRational){0,1}; - s->get_buffer= avcodec_default_get_buffer; - s->release_buffer= avcodec_default_release_buffer; - s->get_format= avcodec_default_get_format; - s->execute= avcodec_default_execute; - s->sample_aspect_ratio= (AVRational){0,1}; - s->pix_fmt= PIX_FMT_NONE; - s->sample_fmt= SAMPLE_FMT_S16; // FIXME: set to NONE - - s->palctrl = NULL; - s->reget_buffer= avcodec_default_reget_buffer; -} - -/** - * allocates a AVCodecContext and set it to defaults. - * this can be deallocated by simply calling free() - */ -AVCodecContext *avcodec_alloc_context(void){ - AVCodecContext *avctx= av_malloc(sizeof(AVCodecContext)); - - if(avctx==NULL) return NULL; - - avcodec_get_context_defaults(avctx); - - return avctx; -} - -void avcodec_get_frame_defaults(AVFrame *pic){ - memset(pic, 0, sizeof(AVFrame)); - - pic->pts= AV_NOPTS_VALUE; - pic->key_frame= 1; -} - -/** - * allocates a AVPFrame and set it to defaults. - * this can be deallocated by simply calling free() - */ -AVFrame *avcodec_alloc_frame(void){ - AVFrame *pic= av_malloc(sizeof(AVFrame)); - - if(pic==NULL) return NULL; - - avcodec_get_frame_defaults(pic); - - return pic; -} - -int avcodec_open(AVCodecContext *avctx, AVCodec *codec) -{ - int ret= -1; - - entangled_thread_counter++; - if(entangled_thread_counter != 1){ - av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n"); - goto end; - } - - if(avctx->codec) - goto end; - - if (codec->priv_data_size > 0) { - avctx->priv_data = av_mallocz(codec->priv_data_size); - if (!avctx->priv_data) - goto end; - } else { - avctx->priv_data = NULL; - } - - if(avctx->coded_width && avctx->coded_height) - avcodec_set_dimensions(avctx, avctx->coded_width, avctx->coded_height); - else if(avctx->width && avctx->height) - avcodec_set_dimensions(avctx, avctx->width, avctx->height); - - if((avctx->coded_width||avctx->coded_height) && avcodec_check_dimensions(avctx,avctx->coded_width,avctx->coded_height)){ - av_freep(&avctx->priv_data); - goto end; - } - - avctx->codec = codec; - avctx->codec_id = codec->id; - avctx->frame_number = 0; - ret = avctx->codec->init(avctx); - if (ret < 0) { - av_freep(&avctx->priv_data); - avctx->codec= NULL; - goto end; - } - ret=0; -end: - entangled_thread_counter--; - return ret; -} - -int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size, - const short *samples) -{ - if(buf_size < FF_MIN_BUFFER_SIZE && 0){ - av_log(avctx, AV_LOG_ERROR, "buffer smaller then minimum size\n"); - return -1; - } - if((avctx->codec->capabilities & CODEC_CAP_DELAY) || samples){ - int ret = avctx->codec->encode(avctx, buf, buf_size, (void *)samples); - avctx->frame_number++; - return ret; - }else - return 0; -} - -int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size, - const AVFrame *pict) -{ - if(buf_size < FF_MIN_BUFFER_SIZE){ - av_log(avctx, AV_LOG_ERROR, "buffer smaller then minimum size\n"); - return -1; - } - if(avcodec_check_dimensions(avctx,avctx->width,avctx->height)) - return -1; - if((avctx->codec->capabilities & CODEC_CAP_DELAY) || pict){ - int ret = avctx->codec->encode(avctx, buf, buf_size, (void *)pict); - avctx->frame_number++; - emms_c(); //needed to avoid an emms_c() call before every return; - - return ret; - }else - return 0; -} - -int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size, - const AVSubtitle *sub) -{ - int ret; - ret = avctx->codec->encode(avctx, buf, buf_size, (void *)sub); - avctx->frame_number++; - return ret; -} - -/** - * decode a frame. - * @param buf bitstream buffer, must be FF_INPUT_BUFFER_PADDING_SIZE larger then the actual read bytes - * because some optimized bitstream readers read 32 or 64 bit at once and could read over the end - * @param buf_size the size of the buffer in bytes - * @param got_picture_ptr zero if no frame could be decompressed, Otherwise, it is non zero - * @return -1 if error, otherwise return the number of - * bytes used. - */ -int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture, - int *got_picture_ptr, - uint8_t *buf, int buf_size) -{ - int ret; - - *got_picture_ptr= 0; - if((avctx->coded_width||avctx->coded_height) && avcodec_check_dimensions(avctx,avctx->coded_width,avctx->coded_height)) - return -1; - if((avctx->codec->capabilities & CODEC_CAP_DELAY) || buf_size){ - ret = avctx->codec->decode(avctx, picture, got_picture_ptr, - buf, buf_size); - - emms_c(); //needed to avoid an emms_c() call before every return; - - if (*got_picture_ptr) - avctx->frame_number++; - }else - ret= 0; - - return ret; -} - -/* decode an audio frame. return -1 if error, otherwise return the - *number of bytes used. If no frame could be decompressed, - *frame_size_ptr is zero. Otherwise, it is the decompressed frame - *size in BYTES. */ -int avcodec_decode_audio2(AVCodecContext *avctx, int16_t *samples, - int *frame_size_ptr, - uint8_t *buf, int buf_size) -{ - int ret; - - //FIXME remove the check below _after_ ensuring that all audio check that the available space is enough - if(*frame_size_ptr < AVCODEC_MAX_AUDIO_FRAME_SIZE){ - av_log(avctx, AV_LOG_ERROR, "buffer smaller then AVCODEC_MAX_AUDIO_FRAME_SIZE\n"); - return -1; - } - if(*frame_size_ptr < FF_MIN_BUFFER_SIZE || - *frame_size_ptr < avctx->channels * avctx->frame_size * sizeof(int16_t) || - *frame_size_ptr < buf_size){ - av_log(avctx, AV_LOG_ERROR, "buffer too small\n"); - return -1; - } - if((avctx->codec->capabilities & CODEC_CAP_DELAY) || buf_size){ - ret = avctx->codec->decode(avctx, samples, frame_size_ptr, - buf, buf_size); - avctx->frame_number++; - }else{ - ret= 0; - *frame_size_ptr=0; - } - return ret; -} - -#if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0) -int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples, - int *frame_size_ptr, - uint8_t *buf, int buf_size){ - *frame_size_ptr= AVCODEC_MAX_AUDIO_FRAME_SIZE; - return avcodec_decode_audio2(avctx, samples, frame_size_ptr, buf, buf_size); -} -#endif - - -/* decode a subtitle message. return -1 if error, otherwise return the - *number of bytes used. If no subtitle could be decompressed, - *got_sub_ptr is zero. Otherwise, the subtitle is stored in *sub. */ -int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub, - int *got_sub_ptr, - const uint8_t *buf, int buf_size) -{ - int ret; - - *got_sub_ptr = 0; - ret = avctx->codec->decode(avctx, sub, got_sub_ptr, - (uint8_t *)buf, buf_size); - if (*got_sub_ptr) - avctx->frame_number++; - return ret; -} - -int avcodec_close(AVCodecContext *avctx) -{ - entangled_thread_counter++; - if(entangled_thread_counter != 1){ - av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n"); - entangled_thread_counter--; - return -1; - } - - if (avctx->codec->close) - avctx->codec->close(avctx); - avcodec_default_free_buffers(avctx); - av_freep(&avctx->priv_data); - avctx->codec = NULL; - entangled_thread_counter--; - return 0; -} - -AVCodec *avcodec_find_encoder(enum CodecID id) -{ - AVCodec *p; - p = first_avcodec; - while (p) { - if (p->encode != NULL && p->id == id) - return p; - p = p->next; - } - return NULL; -} - -AVCodec *avcodec_find_encoder_by_name(const char *name) -{ - AVCodec *p; - p = first_avcodec; - while (p) { - if (p->encode != NULL && strcmp(name,p->name) == 0) - return p; - p = p->next; - } - return NULL; -} - -AVCodec *avcodec_find_decoder(enum CodecID id) -{ - AVCodec *p; - p = first_avcodec; - while (p) { - if (p->decode != NULL && p->id == id) - return p; - p = p->next; - } - return NULL; -} - -AVCodec *avcodec_find_decoder_by_name(const char *name) -{ - AVCodec *p; - p = first_avcodec; - while (p) { - if (p->decode != NULL && strcmp(name,p->name) == 0) - return p; - p = p->next; - } - return NULL; -} - -void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode) -{ - const char *codec_name; - AVCodec *p; - char buf1[32]; - char channels_str[100]; - int bitrate; - - if (encode) - p = avcodec_find_encoder(enc->codec_id); - else - p = avcodec_find_decoder(enc->codec_id); - - if (p) { - codec_name = p->name; - if (!encode && enc->codec_id == CODEC_ID_MP3) { - if (enc->sub_id == 2) - codec_name = "mp2"; - else if (enc->sub_id == 1) - codec_name = "mp1"; - } - } else if (enc->codec_id == CODEC_ID_MPEG2TS) { - /* fake mpeg2 transport stream codec (currently not - registered) */ - codec_name = "mpeg2ts"; - } else if (enc->codec_name[0] != '\0') { - codec_name = enc->codec_name; - } else { - /* output avi tags */ - if( isprint(enc->codec_tag&0xFF) && isprint((enc->codec_tag>>8)&0xFF) - && isprint((enc->codec_tag>>16)&0xFF) && isprint((enc->codec_tag>>24)&0xFF)){ - snprintf(buf1, sizeof(buf1), "%c%c%c%c / 0x%04X", - enc->codec_tag & 0xff, - (enc->codec_tag >> 8) & 0xff, - (enc->codec_tag >> 16) & 0xff, - (enc->codec_tag >> 24) & 0xff, - enc->codec_tag); - } else { - snprintf(buf1, sizeof(buf1), "0x%04x", enc->codec_tag); - } - codec_name = buf1; - } - - switch(enc->codec_type) { - case CODEC_TYPE_VIDEO: - snprintf(buf, buf_size, - "Video: %s%s", - codec_name, enc->mb_decision ? " (hq)" : ""); - if (enc->pix_fmt != PIX_FMT_NONE) { - snprintf(buf + strlen(buf), buf_size - strlen(buf), - ", %s", - avcodec_get_pix_fmt_name(enc->pix_fmt)); - } - if (enc->width) { - snprintf(buf + strlen(buf), buf_size - strlen(buf), - ", %dx%d", - enc->width, enc->height); - if(av_log_get_level() >= AV_LOG_DEBUG){ - int g= ff_gcd(enc->time_base.num, enc->time_base.den); - snprintf(buf + strlen(buf), buf_size - strlen(buf), - ", %d/%d", - enc->time_base.num/g, enc->time_base.den/g); - } - } - if (encode) { - snprintf(buf + strlen(buf), buf_size - strlen(buf), - ", q=%d-%d", enc->qmin, enc->qmax); - } - bitrate = enc->bit_rate; - break; - case CODEC_TYPE_AUDIO: - snprintf(buf, buf_size, - "Audio: %s", - codec_name); - switch (enc->channels) { - case 1: - strcpy(channels_str, "mono"); - break; - case 2: - strcpy(channels_str, "stereo"); - break; - case 6: - strcpy(channels_str, "5:1"); - break; - default: - snprintf(channels_str, sizeof(channels_str), "%d channels", enc->channels); - break; - } - if (enc->sample_rate) { - snprintf(buf + strlen(buf), buf_size - strlen(buf), - ", %d Hz, %s", - enc->sample_rate, - channels_str); - } - - /* for PCM codecs, compute bitrate directly */ - switch(enc->codec_id) { - case CODEC_ID_PCM_S32LE: - case CODEC_ID_PCM_S32BE: - case CODEC_ID_PCM_U32LE: - case CODEC_ID_PCM_U32BE: - bitrate = enc->sample_rate * enc->channels * 32; - break; - case CODEC_ID_PCM_S24LE: - case CODEC_ID_PCM_S24BE: - case CODEC_ID_PCM_U24LE: - case CODEC_ID_PCM_U24BE: - case CODEC_ID_PCM_S24DAUD: - bitrate = enc->sample_rate * enc->channels * 24; - break; - case CODEC_ID_PCM_S16LE: - case CODEC_ID_PCM_S16BE: - case CODEC_ID_PCM_U16LE: - case CODEC_ID_PCM_U16BE: - bitrate = enc->sample_rate * enc->channels * 16; - break; - case CODEC_ID_PCM_S8: - case CODEC_ID_PCM_U8: - case CODEC_ID_PCM_ALAW: - case CODEC_ID_PCM_MULAW: - bitrate = enc->sample_rate * enc->channels * 8; - break; - default: - bitrate = enc->bit_rate; - break; - } - break; - case CODEC_TYPE_DATA: - snprintf(buf, buf_size, "Data: %s", codec_name); - bitrate = enc->bit_rate; - break; - case CODEC_TYPE_SUBTITLE: - snprintf(buf, buf_size, "Subtitle: %s", codec_name); - bitrate = enc->bit_rate; - break; - default: - snprintf(buf, buf_size, "Invalid Codec type %d", enc->codec_type); - return; - } - if (encode) { - if (enc->flags & CODEC_FLAG_PASS1) - snprintf(buf + strlen(buf), buf_size - strlen(buf), - ", pass 1"); - if (enc->flags & CODEC_FLAG_PASS2) - snprintf(buf + strlen(buf), buf_size - strlen(buf), - ", pass 2"); - } - if (bitrate != 0) { - snprintf(buf + strlen(buf), buf_size - strlen(buf), - ", %d kb/s", bitrate / 1000); - } -} - -unsigned avcodec_version( void ) -{ - return LIBAVCODEC_VERSION_INT; -} - -unsigned avcodec_build( void ) -{ - return LIBAVCODEC_BUILD; -} - -static void init_crcs(void){ - av_crc04C11DB7= av_mallocz_static(sizeof(AVCRC) * 257); - av_crc8005 = av_mallocz_static(sizeof(AVCRC) * 257); - av_crc07 = av_mallocz_static(sizeof(AVCRC) * 257); - av_crc_init(av_crc04C11DB7, 0, 32, 0x04c11db7, sizeof(AVCRC)*257); - av_crc_init(av_crc8005 , 0, 16, 0x8005 , sizeof(AVCRC)*257); - av_crc_init(av_crc07 , 0, 8, 0x07 , sizeof(AVCRC)*257); -} - -/* must be called before any other functions */ -void avcodec_init(void) -{ - static int inited = 0; - - if (inited != 0) - return; - inited = 1; - - dsputil_static_init(); - init_crcs(); -} - -/** - * Flush buffers, should be called when seeking or when swicthing to a different stream. - */ -void avcodec_flush_buffers(AVCodecContext *avctx) -{ - if(avctx->codec->flush) - avctx->codec->flush(avctx); -} - -void avcodec_default_free_buffers(AVCodecContext *s){ - int i, j; - - if(s->internal_buffer==NULL) return; - - for(i=0; i<INTERNAL_BUFFER_SIZE; i++){ - InternalBuffer *buf= &((InternalBuffer*)s->internal_buffer)[i]; - for(j=0; j<4; j++){ - av_freep(&buf->base[j]); - buf->data[j]= NULL; - } - } - av_freep(&s->internal_buffer); - - s->internal_buffer_count=0; -} - -char av_get_pict_type_char(int pict_type){ - switch(pict_type){ - case I_TYPE: return 'I'; - case P_TYPE: return 'P'; - case B_TYPE: return 'B'; - case S_TYPE: return 'S'; - case SI_TYPE:return 'i'; - case SP_TYPE:return 'p'; - default: return '?'; - } -} - -int av_get_bits_per_sample(enum CodecID codec_id){ - switch(codec_id){ - case CODEC_ID_ADPCM_SBPRO_2: - return 2; - case CODEC_ID_ADPCM_SBPRO_3: - return 3; - case CODEC_ID_ADPCM_SBPRO_4: - case CODEC_ID_ADPCM_CT: - return 4; - case CODEC_ID_PCM_ALAW: - case CODEC_ID_PCM_MULAW: - case CODEC_ID_PCM_S8: - case CODEC_ID_PCM_U8: - return 8; - case CODEC_ID_PCM_S16BE: - case CODEC_ID_PCM_S16LE: - case CODEC_ID_PCM_U16BE: - case CODEC_ID_PCM_U16LE: - return 16; - case CODEC_ID_PCM_S24DAUD: - case CODEC_ID_PCM_S24BE: - case CODEC_ID_PCM_S24LE: - case CODEC_ID_PCM_U24BE: - case CODEC_ID_PCM_U24LE: - return 24; - case CODEC_ID_PCM_S32BE: - case CODEC_ID_PCM_S32LE: - case CODEC_ID_PCM_U32BE: - case CODEC_ID_PCM_U32LE: - return 32; - default: - return 0; - } -} - -#if !defined(HAVE_THREADS) -int avcodec_thread_init(AVCodecContext *s, int thread_count){ - return -1; -} -#endif - -unsigned int av_xiphlacing(unsigned char *s, unsigned int v) -{ - unsigned int n = 0; - - while(v >= 0xff) { - *s++ = 0xff; - v -= 0xff; - n++; - } - *s = v; - n++; - return n; -} - -/* Wrapper to work around the lack of mkstemp() on mingw/cygin. - * Also, tries to create file in /tmp first, if possible. - * *prefix can be a character constant; *filename will be allocated internally. - * Returns file descriptor of opened file (or -1 on error) - * and opened file name in **filename. */ -int av_tempfile(char *prefix, char **filename) { - int fd=-1; -#ifdef __MINGW32__ - *filename = tempnam(".", prefix); -#else - size_t len = strlen(prefix) + 12; /* room for "/tmp/" and "XXXXXX\0" */ - *filename = av_malloc(len); -#endif - /* -----common section-----*/ - if (*filename == NULL) { - av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot allocate file name\n"); - return -1; - } -#ifdef __MINGW32__ - fd = open(*filename, _O_RDWR | _O_BINARY | _O_CREAT, 0444); -#else - snprintf(*filename, len, "/tmp/%sXXXXXX", prefix); - fd = mkstemp(*filename); - if (fd < 0) { - snprintf(*filename, len, "./%sXXXXXX", prefix); - fd = mkstemp(*filename); - } -#endif - /* -----common section-----*/ - if (fd < 0) { - av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot open temporary file %s\n", *filename); - return -1; - } - return fd; /* success */ -} |