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Diffstat (limited to 'contrib/ffmpeg/libavcodec/utils.c')
| -rw-r--r-- | contrib/ffmpeg/libavcodec/utils.c | 1340 |
1 files changed, 1340 insertions, 0 deletions
diff --git a/contrib/ffmpeg/libavcodec/utils.c b/contrib/ffmpeg/libavcodec/utils.c new file mode 100644 index 000000000..2129c9d15 --- /dev/null +++ b/contrib/ffmpeg/libavcodec/utils.c @@ -0,0 +1,1340 @@ +/* + * 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; + +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; + +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; +} + +void *ff_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; + +} + +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_YUYV422: + 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_UYYVYY411: + 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; + + if(pic->data[0]!=NULL) { + av_log(s, AV_LOG_ERROR, "pic->data[0]!=NULL in avcodec_default_get_buffer\n"); + return -1; + } + if(s->internal_buffer_count >= INTERNAL_BUFFER_SIZE) { + av_log(s, AV_LOG_ERROR, "internal_buffer_count overflow (missing release_buffer?)\n"); + return -1; + } + + 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; + + 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]; + + FFSWAP(InternalBuffer, *buf, *last); + + 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 */ + av_picture_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 bitrate (in bits/s)", OFFSET(bit_rate), FF_OPT_TYPE_INT, AV_CODEC_DEFAULT_BITRATE, INT_MIN, INT_MAX, V|E}, +{"ab", "set bitrate (in bits/s)", OFFSET(bit_rate), FF_OPT_TYPE_INT, 64*1000, INT_MIN, INT_MAX, 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}, +#if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0) +{"rtp_mode", NULL, OFFSET(rtp_mode), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX}, +#endif +{"ps", "rtp payload size in bits", OFFSET(rtp_payload_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E}, +{"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"}, +{"dct8x8", "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"}, +{"non_linear_q", "use non linear quantizer", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_NON_LINEAR_QUANT, 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_defaults2(AVCodecContext *s, enum CodecType codec_type){ + int flags=0; + memset(s, 0, sizeof(AVCodecContext)); + + s->av_class= &av_codec_context_class; + + if(codec_type == CODEC_TYPE_AUDIO) + flags= AV_OPT_FLAG_AUDIO_PARAM; + else if(codec_type == CODEC_TYPE_VIDEO) + flags= AV_OPT_FLAG_VIDEO_PARAM; + else if(codec_type == CODEC_TYPE_SUBTITLE) + flags= AV_OPT_FLAG_SUBTITLE_PARAM; + av_opt_set_defaults2(s, flags, flags); + + 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; +} + +AVCodecContext *avcodec_alloc_context2(enum CodecType codec_type){ + AVCodecContext *avctx= av_malloc(sizeof(AVCodecContext)); + + if(avctx==NULL) return NULL; + + avcodec_get_context_defaults2(avctx, codec_type); + + return avctx; +} + +void avcodec_get_context_defaults(AVCodecContext *s){ + avcodec_get_context_defaults2(s, CODEC_TYPE_UNKNOWN); +} + +AVCodecContext *avcodec_alloc_context(void){ + return avcodec_alloc_context2(CODEC_TYPE_UNKNOWN); +} + +void avcodec_get_frame_defaults(AVFrame *pic){ + memset(pic, 0, sizeof(AVFrame)); + + pic->pts= AV_NOPTS_VALUE; + pic->key_frame= 1; +} + +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; + if(avctx->codec->init){ + 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 than 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 than 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; +} + +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; +} + +int avcodec_decode_audio2(AVCodecContext *avctx, int16_t *samples, + int *frame_size_ptr, + uint8_t *buf, int buf_size) +{ + int ret; + + if((avctx->codec->capabilities & CODEC_CAP_DELAY) || buf_size){ + //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 than 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 %d too small\n", *frame_size_ptr); + return -1; + } + + 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 + +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_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){ +#if LIBAVUTIL_VERSION_INT < (50<<16) + av_crc04C11DB7= av_mallocz_static(sizeof(AVCRC) * 257); + av_crc8005 = av_mallocz_static(sizeof(AVCRC) * 257); + av_crc07 = av_mallocz_static(sizeof(AVCRC) * 257); +#endif + 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); +} + +void avcodec_init(void) +{ + static int inited = 0; + + if (inited != 0) + return; + inited = 1; + + dsputil_static_init(); + init_crcs(); +} + +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 */ +} |