+++ /dev/null
-#ifndef AVCODEC_H
-#define AVCODEC_H
-
-/**
- * @file avcodec.h
- * external api header.
- */
-
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include "common.h"
-
-#define FFMPEG_VERSION_INT 0x000408
-#define FFMPEG_VERSION "0.4.8"
-#define LIBAVCODEC_BUILD 4680
-
-#define LIBAVCODEC_VERSION_INT FFMPEG_VERSION_INT
-#define LIBAVCODEC_VERSION FFMPEG_VERSION
-
-#define AV_STRINGIFY(s) AV_TOSTRING(s)
-#define AV_TOSTRING(s) #s
-#define LIBAVCODEC_IDENT "FFmpeg" LIBAVCODEC_VERSION "b" AV_STRINGIFY(LIBAVCODEC_BUILD)
-
-enum CodecID {
- CODEC_ID_NONE,
- CODEC_ID_MPEG1VIDEO,
- CODEC_ID_MPEG2VIDEO, /* prefered ID for MPEG Video 1 or 2 decoding */
- CODEC_ID_MPEG2VIDEO_XVMC,
- CODEC_ID_H263,
- CODEC_ID_RV10,
- CODEC_ID_MP2,
- CODEC_ID_MP3, /* prefered ID for MPEG Audio layer 1, 2 or3 decoding */
- CODEC_ID_VORBIS,
- CODEC_ID_AC3,
- CODEC_ID_MJPEG,
- CODEC_ID_MJPEGB,
- CODEC_ID_LJPEG,
- CODEC_ID_MPEG4,
- CODEC_ID_RAWVIDEO,
- CODEC_ID_MSMPEG4V1,
- CODEC_ID_MSMPEG4V2,
- CODEC_ID_MSMPEG4V3,
- CODEC_ID_WMV1,
- CODEC_ID_WMV2,
- CODEC_ID_H263P,
- CODEC_ID_H263I,
- CODEC_ID_FLV1,
- CODEC_ID_SVQ1,
- CODEC_ID_SVQ3,
- CODEC_ID_DVVIDEO,
- CODEC_ID_DVAUDIO,
- CODEC_ID_WMAV1,
- CODEC_ID_WMAV2,
- CODEC_ID_MACE3,
- CODEC_ID_MACE6,
- CODEC_ID_HUFFYUV,
- CODEC_ID_CYUV,
- CODEC_ID_H264,
- CODEC_ID_INDEO3,
- CODEC_ID_VP3,
- CODEC_ID_AAC,
- CODEC_ID_MPEG4AAC,
- CODEC_ID_ASV1,
- CODEC_ID_ASV2,
- CODEC_ID_FFV1,
- CODEC_ID_4XM,
- CODEC_ID_VCR1,
- CODEC_ID_CLJR,
- CODEC_ID_MDEC,
- CODEC_ID_ROQ,
- CODEC_ID_INTERPLAY_VIDEO,
- CODEC_ID_XAN_WC3,
- CODEC_ID_XAN_WC4,
-
- /* various pcm "codecs" */
- CODEC_ID_PCM_S16LE,
- CODEC_ID_PCM_S16BE,
- CODEC_ID_PCM_U16LE,
- CODEC_ID_PCM_U16BE,
- CODEC_ID_PCM_S8,
- CODEC_ID_PCM_U8,
- CODEC_ID_PCM_MULAW,
- CODEC_ID_PCM_ALAW,
-
- /* various adpcm codecs */
- CODEC_ID_ADPCM_IMA_QT,
- CODEC_ID_ADPCM_IMA_WAV,
- CODEC_ID_ADPCM_IMA_DK3,
- CODEC_ID_ADPCM_IMA_DK4,
- CODEC_ID_ADPCM_MS,
- CODEC_ID_ADPCM_4XM,
-
- /* AMR */
- CODEC_ID_AMR_NB,
- /* RealAudio codecs*/
- CODEC_ID_RA_144,
- CODEC_ID_RA_288,
-
- /* various DPCM codecs */
- CODEC_ID_ROQ_DPCM,
- CODEC_ID_INTERPLAY_DPCM,
- CODEC_ID_XAN_DPCM
-};
-
-/* CODEC_ID_MP3LAME is absolete */
-#define CODEC_ID_MP3LAME CODEC_ID_MP3
-
-enum CodecType {
- CODEC_TYPE_UNKNOWN = -1,
- CODEC_TYPE_VIDEO,
- CODEC_TYPE_AUDIO
-};
-
-/**
- * Pixel format. Notes:
- *
- * PIX_FMT_RGBA32 is handled in an endian-specific manner. A RGBA
- * color is put together as:
- * (A << 24) | (R << 16) | (G << 8) | B
- * This is stored as BGRA on little endian CPU architectures and ARGB on
- * big endian CPUs.
- *
- * When the pixel format is palettized RGB (PIX_FMT_PAL8), the palettized
- * image data is stored in AVFrame.data[0]. The palette is transported in
- * AVFrame.data[1] and, is 1024 bytes long (256 4-byte entries) and is
- * formatted the same as in PIX_FMT_RGBA32 described above (i.e., it is
- * also endian-specific).
- */
-enum PixelFormat {
- PIX_FMT_YUV420P, ///< Planar YUV 4:2:0 (1 Cr & Cb sample per 2x2 Y samples)
- PIX_FMT_YUV422,
- PIX_FMT_RGB24, ///< Packed pixel, 3 bytes per pixel, RGBRGB...
- PIX_FMT_BGR24, ///< Packed pixel, 3 bytes per pixel, BGRBGR...
- PIX_FMT_YUV422P, ///< Planar YUV 4:2:2 (1 Cr & Cb sample per 2x1 Y samples)
- PIX_FMT_YUV444P, ///< Planar YUV 4:4:4 (1 Cr & Cb sample per 1x1 Y samples)
- PIX_FMT_RGBA32, ///< Packed pixel, 4 bytes per pixel, BGRABGRA..., stored in cpu endianness
- PIX_FMT_YUV410P, ///< Planar YUV 4:1:0 (1 Cr & Cb sample per 4x4 Y samples)
- PIX_FMT_YUV411P, ///< Planar YUV 4:1:1 (1 Cr & Cb sample per 4x1 Y samples)
- PIX_FMT_RGB565, ///< always stored in cpu endianness
- PIX_FMT_RGB555, ///< always stored in cpu endianness, most significant bit to 1
- PIX_FMT_GRAY8,
- PIX_FMT_MONOWHITE, ///< 0 is white
- PIX_FMT_MONOBLACK, ///< 0 is black
- PIX_FMT_PAL8, ///< 8 bit with RGBA palette
- PIX_FMT_YUVJ420P, ///< Planar YUV 4:2:0 full scale (jpeg)
- PIX_FMT_YUVJ422P, ///< Planar YUV 4:2:2 full scale (jpeg)
- PIX_FMT_YUVJ444P, ///< Planar YUV 4:4:4 full scale (jpeg)
- PIX_FMT_XVMC_MPEG2_MC,///< XVideo Motion Acceleration via common packet passing(xvmc_render.h)
- PIX_FMT_XVMC_MPEG2_IDCT,
- PIX_FMT_NB
-};
-
-/* currently unused, may be used if 24/32 bits samples ever supported */
-enum SampleFormat {
- SAMPLE_FMT_S16 = 0 ///< signed 16 bits
-};
-
-/* in bytes */
-#define AVCODEC_MAX_AUDIO_FRAME_SIZE 131072
-
-/**
- * Required number of additionally allocated bytes at the end of the input bitstream for decoding.
- * this is mainly needed because some optimized bitstream readers read
- * 32 or 64 bit at once and could read over the end<br>
- * Note, if the first 23 bits of the additional bytes are not 0 then damaged
- * MPEG bitstreams could cause overread and segfault
- */
-#define FF_INPUT_BUFFER_PADDING_SIZE 8
-
-/* motion estimation type, EPZS by default */
-enum Motion_Est_ID {
- ME_ZERO = 1,
- ME_FULL,
- ME_LOG,
- ME_PHODS,
- ME_EPZS,
- ME_X1
-};
-
-typedef struct RcOverride{
- int start_frame;
- int end_frame;
- int qscale; // if this is 0 then quality_factor will be used instead
- float quality_factor;
-} RcOverride;
-
-/* only for ME compatiblity with old apps */
-extern int motion_estimation_method;
-
-/* ME algos sorted by quality */
-static const int Motion_Est_QTab[] = { ME_ZERO, ME_PHODS, ME_LOG,
- ME_X1, ME_EPZS, ME_FULL };
-
-
-#define FF_MAX_B_FRAMES 8
-
-/* encoding support
- these flags can be passed in AVCodecContext.flags before initing
- Note: note not everything is supported yet
-*/
-
-#define CODEC_FLAG_QSCALE 0x0002 ///< use fixed qscale
-#define CODEC_FLAG_4MV 0x0004 ///< 4 MV per MB allowed
-#define CODEC_FLAG_QPEL 0x0010 ///< use qpel MC
-#define CODEC_FLAG_GMC 0x0020 ///< use GMC
-#define CODEC_FLAG_PART 0x0080 ///< use data partitioning
-/* parent program gurantees that the input for b-frame containing streams is not written to
- for at least s->max_b_frames+1 frames, if this is not set than the input will be copied */
-#define CODEC_FLAG_INPUT_PRESERVED 0x0100
-#define CODEC_FLAG_PASS1 0x0200 ///< use internal 2pass ratecontrol in first pass mode
-#define CODEC_FLAG_PASS2 0x0400 ///< use internal 2pass ratecontrol in second pass mode
-#define CODEC_FLAG_EXTERN_HUFF 0x1000 ///< use external huffman table (for mjpeg)
-#define CODEC_FLAG_GRAY 0x2000 ///< only decode/encode grayscale
-#define CODEC_FLAG_EMU_EDGE 0x4000///< dont draw edges
-#define CODEC_FLAG_PSNR 0x8000 ///< error[?] variables will be set during encoding
-#define CODEC_FLAG_TRUNCATED 0x00010000 /** input bitstream might be truncated at a random location instead
- of only at frame boundaries */
-#define CODEC_FLAG_NORMALIZE_AQP 0x00020000 ///< normalize adaptive quantization
-#define CODEC_FLAG_INTERLACED_DCT 0x00040000 ///< use interlaced dct
-#define CODEC_FLAG_LOW_DELAY 0x00080000 ///< force low delay
-#define CODEC_FLAG_ALT_SCAN 0x00100000 ///< use alternate scan
-#define CODEC_FLAG_TRELLIS_QUANT 0x00200000 ///< use trellis quantization
-#define CODEC_FLAG_GLOBAL_HEADER 0x00400000 ///< place global headers in extradata instead of every keyframe
-#define CODEC_FLAG_BITEXACT 0x00800000 ///< use only bitexact stuff (except (i)dct)
-/* Fx : Flag for h263+ extra options */
-#define CODEC_FLAG_H263P_AIC 0x01000000 ///< Advanced intra coding
-#define CODEC_FLAG_H263P_UMV 0x02000000 ///< Unlimited motion vector
-/* For advanced prediction mode, we reuse the 4MV flag */
-/* Unsupported options :
- * Syntax Arithmetic coding (SAC)
- * Deblocking filter internal loop
- * Slice structured
- * Reference Picture Selection
- * Independant Segment Decoding
- * Alternative Inter * VLC
- * Modified Quantization */
-/* /Fx */
-/* codec capabilities */
-
-#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 ///< decoder can use draw_horiz_band callback
-/**
- * Codec uses get_buffer() for allocating buffers.
- * direct rendering method 1
- */
-#define CODEC_CAP_DR1 0x0002
-/* if 'parse_only' field is true, then avcodec_parse_frame() can be
- used */
-#define CODEC_CAP_PARSE_ONLY 0x0004
-#define CODEC_CAP_TRUNCATED 0x0008
-
-#define FF_COMMON_FRAME \
- /**\
- * pointer to the picture planes.\
- * this might be different from the first allocated byte\
- * - encoding: \
- * - decoding: \
- */\
- uint8_t *data[4];\
- int linesize[4];\
- /**\
- * pointer to the first allocated byte of the picture. can be used in get_buffer/release_buffer\
- * this isnt used by lavc unless the default get/release_buffer() is used\
- * - encoding: \
- * - decoding: \
- */\
- uint8_t *base[4];\
- /**\
- * 1 -> keyframe, 0-> not\
- * - encoding: set by lavc\
- * - decoding: set by lavc\
- */\
- int key_frame;\
-\
- /**\
- * picture type of the frame, see ?_TYPE below.\
- * - encoding: set by lavc for coded_picture (and set by user for input)\
- * - decoding: set by lavc\
- */\
- int pict_type;\
-\
- /**\
- * presentation timestamp in micro seconds (time when frame should be shown to user)\
- * if 0 then the frame_rate will be used as reference\
- * - encoding: MUST be set by user\
- * - decoding: set by lavc\
- */\
- int64_t pts;\
-\
- /**\
- * picture number in bitstream order.\
- * - encoding: set by\
- * - decoding: set by lavc\
- */\
- int coded_picture_number;\
- /**\
- * picture number in display order.\
- * - encoding: set by\
- * - decoding: set by lavc\
- */\
- int display_picture_number;\
-\
- /**\
- * quality (between 1 (good) and 31 (bad)) \
- * - encoding: set by lavc for coded_picture (and set by user for input)\
- * - decoding: set by lavc\
- */\
- float quality; \
-\
- /**\
- * buffer age (1->was last buffer and dint change, 2->..., ...).\
- * set to something large if the buffer has not been used yet \
- * - encoding: unused\
- * - decoding: MUST be set by get_buffer()\
- */\
- int age;\
-\
- /**\
- * is this picture used as reference\
- * - encoding: unused\
- * - decoding: set by lavc (before get_buffer() call))\
- */\
- int reference;\
-\
- /**\
- * QP table\
- * - encoding: unused\
- * - decoding: set by lavc\
- */\
- int8_t *qscale_table;\
- /**\
- * QP store stride\
- * - encoding: unused\
- * - decoding: set by lavc\
- */\
- int qstride;\
-\
- /**\
- * mbskip_table[mb]>=1 if MB didnt change\
- * stride= mb_width = (width+15)>>4\
- * - encoding: unused\
- * - decoding: set by lavc\
- */\
- uint8_t *mbskip_table;\
-\
- /**\
- * for some private data of the user\
- * - encoding: unused\
- * - decoding: set by user\
- */\
- void *opaque;\
-\
- /**\
- * error\
- * - encoding: set by lavc if flags&CODEC_FLAG_PSNR\
- * - decoding: unused\
- */\
- uint64_t error[4];\
-\
- /**\
- * type of the buffer (to keep track of who has to dealloc data[*])\
- * - encoding: set by the one who allocs it\
- * - decoding: set by the one who allocs it\
- * Note: user allocated (direct rendering) & internal buffers can not coexist currently\
- */\
- int type;\
- \
- /**\
- * when decoding, this signal how much the picture must be delayed.\
- * extra_delay = repeat_pict / (2*fps)\
- * - encoding: unused\
- * - decoding: set by lavc\
- */\
- int repeat_pict;\
- \
- /**\
- * \
- */\
- int qscale_type;\
-
-#define FF_QSCALE_TYPE_MPEG1 0
-#define FF_QSCALE_TYPE_MPEG2 1
-
-#define FF_BUFFER_TYPE_INTERNAL 1
-#define FF_BUFFER_TYPE_USER 2 ///< Direct rendering buffers (image is (de)allocated by user)
-#define FF_BUFFER_TYPE_SHARED 4 ///< buffer from somewher else, dont dealloc image (data/base)
-#define FF_BUFFER_TYPE_COPY 8 ///< just a (modified) copy of some other buffer, dont dealloc anything
-
-
-#define FF_I_TYPE 1 // Intra
-#define FF_P_TYPE 2 // Predicted
-#define FF_B_TYPE 3 // Bi-dir predicted
-#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
-#define FF_SI_TYPE 5
-#define FF_SP_TYPE 6
-
-/**
- * Audio Video Frame.
- */
-typedef struct AVFrame {
- FF_COMMON_FRAME
-} AVFrame;
-
-#define DEFAULT_FRAME_RATE_BASE 1001000
-
-/**
- * main external api structure.
- */
-typedef struct AVCodecContext {
- /**
- * the average bitrate.
- * - encoding: set by user. unused for constant quantizer encoding
- * - decoding: set by lavc. 0 or some bitrate if this info is available in the stream
- */
- int bit_rate;
-
- /**
- * number of bits the bitstream is allowed to diverge from the reference.
- * the reference can be CBR (for CBR pass1) or VBR (for pass2)
- * - encoding: set by user. unused for constant quantizer encoding
- * - decoding: unused
- */
- int bit_rate_tolerance;
-
- /**
- * CODEC_FLAG_*.
- * - encoding: set by user.
- * - decoding: set by user.
- */
- int flags;
-
- /**
- * some codecs needs additionnal format info. It is stored here
- * - encoding: set by user.
- * - decoding: set by lavc. (FIXME is this ok?)
- */
- int sub_id;
-
- /**
- * motion estimation algorithm used for video coding.
- * - encoding: MUST be set by user.
- * - decoding: unused
- */
- int me_method;
-
- /**
- * some codecs need / can use extra-data like huffman tables.
- * mjpeg: huffman tables
- * rv10: additional flags
- * mpeg4: global headers (they can be in the bitstream or here)
- * - encoding: set/allocated/freed by lavc.
- * - decoding: set/allocated/freed by user.
- */
- void *extradata;
- int extradata_size;
-
- /* video only */
- /**
- * frames per sec multiplied by frame_rate_base.
- * for variable fps this is the precission, so if the timestamps
- * can be specified in msec precssion then this is 1000*frame_rate_base
- * - encoding: MUST be set by user
- * - decoding: set by lavc. 0 or the frame_rate if available
- */
- int frame_rate;
-
- /**
- * width / height.
- * - encoding: MUST be set by user.
- * - decoding: set by user, some codecs might override / change it during playback
- */
- int width, height;
-
-#define FF_ASPECT_SQUARE 1
-#define FF_ASPECT_4_3_625 2
-#define FF_ASPECT_4_3_525 3
-#define FF_ASPECT_16_9_625 4
-#define FF_ASPECT_16_9_525 5
-#define FF_ASPECT_EXTENDED 15
-
- /**
- * the number of pictures in a group of pitures, or 0 for intra_only.
- * - encoding: set by user.
- * - decoding: unused
- */
- int gop_size;
-
- /**
- * pixel format, see PIX_FMT_xxx.
- * - encoding: FIXME: used by ffmpeg to decide whether an pix_fmt
- * conversion is in order. This only works for
- * codecs with one supported pix_fmt, we should
- * do something for a generic case as well.
- * - decoding: set by lavc.
- */
- enum PixelFormat pix_fmt;
-
- /**
- * Frame rate emulation. If not zero lower layer (i.e. format handler)
- * has to read frames at native frame rate.
- * - encoding: set by user.
- * - decoding: unused.
- */
- int rate_emu;
-
- /**
- * if non NULL, 'draw_horiz_band' is called by the libavcodec
- * decoder to draw an horizontal band. It improve cache usage. Not
- * all codecs can do that. You must check the codec capabilities
- * before
- * - encoding: unused
- * - decoding: set by user.
- * @param height the height of the slice
- * @param y the y position of the slice
- * @param type 1->top field, 2->bottom field, 3->frame
- * @param offset offset into the AVFrame.data from which the slice should be read
- */
- void (*draw_horiz_band)(struct AVCodecContext *s,
- AVFrame *src, int offset[4],
- int y, int type, int height);
-
- /* audio only */
- int sample_rate; ///< samples per sec
- int channels;
- int sample_fmt; ///< sample format, currenly unused
-
- /* the following data should not be initialized */
- int frame_size; ///< in samples, initialized when calling 'init'
- int frame_number; ///< audio or video frame number
- int real_pict_num; ///< returns the real picture number of previous encoded frame
-
- /**
- * number of frames the decoded output will be delayed relative to
- * the encoded input.
- * - encoding: set by lavc.
- * - decoding: unused
- */
- int delay;
-
- /* - encoding parameters */
- float qcompress; ///< amount of qscale change between easy & hard scenes (0.0-1.0)
- float qblur; ///< amount of qscale smoothing over time (0.0-1.0)
-
- /**
- * minimum quantizer.
- * - encoding: set by user.
- * - decoding: unused
- */
- int qmin;
-
- /**
- * maximum quantizer.
- * - encoding: set by user.
- * - decoding: unused
- */
- int qmax;
-
- /**
- * maximum quantizer difference etween frames.
- * - encoding: set by user.
- * - decoding: unused
- */
- int max_qdiff;
-
- /**
- * maximum number of b frames between non b frames.
- * note: the output will be delayed by max_b_frames+1 relative to the input
- * - encoding: set by user.
- * - decoding: unused
- */
- int max_b_frames;
-
- /**
- * qscale factor between ip and b frames.
- * - encoding: set by user.
- * - decoding: unused
- */
- float b_quant_factor;
-
- /** obsolete FIXME remove */
- int rc_strategy;
- int b_frame_strategy;
-
- /**
- * hurry up amount.
- * - encoding: unused
- * - decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
- */
- int hurry_up;
-
- struct AVCodec *codec;
-
- void *priv_data;
-
- /* The following data is for RTP friendly coding */
- /* By now only H.263/H.263+/MPEG4 coder honours this */
- int rtp_mode; /* 1 for activate RTP friendly-mode */
- /* highers numbers represent more error-prone */
- /* enviroments, by now just "1" exist */
-
- int rtp_payload_size; /* The size of the RTP payload, the coder will */
- /* do it's best to deliver a chunk with size */
- /* below rtp_payload_size, the chunk will start */
- /* with a start code on some codecs like H.263 */
- /* This doesn't take account of any particular */
- /* headers inside the transmited RTP payload */
-
-
- /* The RTP callcack: This function is called */
- /* every time the encoder as a packet to send */
- /* Depends on the encoder if the data starts */
- /* with a Start Code (it should) H.263 does */
- void (*rtp_callback)(void *data, int size, int packet_number);
-
- /* statistics, used for 2-pass encoding */
- int mv_bits;
- int header_bits;
- int i_tex_bits;
- int p_tex_bits;
- int i_count;
- int p_count;
- int skip_count;
- int misc_bits;
-
- /**
- * number of bits used for the previously encoded frame.
- * - encoding: set by lavc
- * - decoding: unused
- */
- int frame_bits;
-
- /**
- * private data of the user, can be used to carry app specific stuff.
- * - encoding: set by user
- * - decoding: set by user
- */
- void *opaque;
-
- char codec_name[32];
- enum CodecType codec_type; /* see CODEC_TYPE_xxx */
- enum CodecID codec_id; /* see CODEC_ID_xxx */
-
- /**
- * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
- * this is used to workaround some encoder bugs
- * - encoding: set by user, if not then the default based on codec_id will be used
- * - decoding: set by user, will be converted to upper case by lavc during init
- */
- unsigned int codec_tag;
-
- /**
- * workaround bugs in encoders which sometimes cannot be detected automatically.
- * - encoding: unused
- * - decoding: set by user
- */
- int workaround_bugs;
-#define FF_BUG_AUTODETECT 1 ///< autodetection
-#define FF_BUG_OLD_MSMPEG4 2
-#define FF_BUG_XVID_ILACE 4
-#define FF_BUG_UMP4 8
-#define FF_BUG_NO_PADDING 16
-#define FF_BUG_AC_VLC 32
-#define FF_BUG_QPEL_CHROMA 64
-#define FF_BUG_STD_QPEL 128
-#define FF_BUG_QPEL_CHROMA2 256
-#define FF_BUG_DIRECT_BLOCKSIZE 512
-#define FF_BUG_EDGE 1024
-//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
-
- /**
- * luma single coeff elimination threshold.
- * - encoding: set by user
- * - decoding: unused
- */
- int luma_elim_threshold;
-
- /**
- * chroma single coeff elimination threshold.
- * - encoding: set by user
- * - decoding: unused
- */
- int chroma_elim_threshold;
-
- /**
- * strictly follow the std (MPEG4, ...).
- * - encoding: set by user
- * - decoding: unused
- */
- int strict_std_compliance;
-
- /**
- * qscale offset between ip and b frames.
- * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
- * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
- * - encoding: set by user.
- * - decoding: unused
- */
- float b_quant_offset;
-
- /**
- * error resilience higher values will detect more errors but may missdetect
- * some more or less valid parts as errors.
- * - encoding: unused
- * - decoding: set by user
- */
- int error_resilience;
-#define FF_ER_CAREFULL 1
-#define FF_ER_COMPLIANT 2
-#define FF_ER_AGGRESSIVE 3
-#define FF_ER_VERY_AGGRESSIVE 4
-
- /**
- * called at the beginning of each frame to get a buffer for it.
- * if pic.reference is set then the frame will be read later by lavc
- * width and height should be rounded up to the next multiple of 16
- * - encoding: unused
- * - decoding: set by lavc, user can override
- */
- int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
-
- /**
- * called to release buffers which where allocated with get_buffer.
- * a released buffer can be reused in get_buffer()
- * pic.data[*] must be set to NULL
- * - encoding: unused
- * - decoding: set by lavc, user can override
- */
- void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
-
- /**
- * is 1 if the decoded stream contains b frames, 0 otherwise.
- * - encoding: unused
- * - decoding: set by lavc
- */
- int has_b_frames;
-
- int block_align; ///< used by some WAV based audio codecs
-
- int parse_only; /* - decoding only: if true, only parsing is done
- (function avcodec_parse_frame()). The frame
- data is returned. Only MPEG codecs support this now. */
-
- /**
- * 0-> h263 quant 1-> mpeg quant.
- * - encoding: set by user.
- * - decoding: unused
- */
- int mpeg_quant;
-
- /**
- * pass1 encoding statistics output buffer.
- * - encoding: set by lavc
- * - decoding: unused
- */
- char *stats_out;
-
- /**
- * pass2 encoding statistics input buffer.
- * concatenated stuff from stats_out of pass1 should be placed here
- * - encoding: allocated/set/freed by user
- * - decoding: unused
- */
- char *stats_in;
-
- /**
- * ratecontrol qmin qmax limiting method.
- * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
- * - encoding: set by user.
- * - decoding: unused
- */
- float rc_qsquish;
-
- float rc_qmod_amp;
- int rc_qmod_freq;
-
- /**
- * ratecontrol override, see RcOverride.
- * - encoding: allocated/set/freed by user.
- * - decoding: unused
- */
- RcOverride *rc_override;
- int rc_override_count;
-
- /**
- * rate control equation.
- * - encoding: set by user
- * - decoding: unused
- */
- char *rc_eq;
-
- /**
- * maximum bitrate.
- * - encoding: set by user.
- * - decoding: unused
- */
- int rc_max_rate;
-
- /**
- * minimum bitrate.
- * - encoding: set by user.
- * - decoding: unused
- */
- int rc_min_rate;
-
- /**
- * decoder bitstream buffer size.
- * - encoding: set by user.
- * - decoding: unused
- */
- int rc_buffer_size;
- float rc_buffer_aggressivity;
-
- /**
- * qscale factor between p and i frames.
- * - encoding: set by user.
- * - decoding: unused
- */
- float i_quant_factor;
-
- /**
- * qscale offset between p and i frames.
- * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
- * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
- * - encoding: set by user.
- * - decoding: unused
- */
- float i_quant_offset;
-
- /**
- * initial complexity for pass1 ratecontrol.
- * - encoding: set by user.
- * - decoding: unused
- */
- float rc_initial_cplx;
-
- /**
- * dct algorithm, see FF_DCT_* below.
- * - encoding: set by user
- * - decoding: unused
- */
- int dct_algo;
-#define FF_DCT_AUTO 0
-#define FF_DCT_FASTINT 1
-#define FF_DCT_INT 2
-#define FF_DCT_MMX 3
-#define FF_DCT_MLIB 4
-#define FF_DCT_ALTIVEC 5
-
- /**
- * luminance masking (0-> disabled).
- * - encoding: set by user
- * - decoding: unused
- */
- float lumi_masking;
-
- /**
- * temporary complexity masking (0-> disabled).
- * - encoding: set by user
- * - decoding: unused
- */
- float temporal_cplx_masking;
-
- /**
- * spatial complexity masking (0-> disabled).
- * - encoding: set by user
- * - decoding: unused
- */
- float spatial_cplx_masking;
-
- /**
- * p block masking (0-> disabled).
- * - encoding: set by user
- * - decoding: unused
- */
- float p_masking;
-
- /**
- * darkness masking (0-> disabled).
- * - encoding: set by user
- * - decoding: unused
- */
- float dark_masking;
-
-
- /* for binary compatibility */
- int unused;
-
- /**
- * idct algorithm, see FF_IDCT_* below.
- * - encoding: set by user
- * - decoding: set by user
- */
- int idct_algo;
-#define FF_IDCT_AUTO 0
-#define FF_IDCT_INT 1
-#define FF_IDCT_SIMPLE 2
-#define FF_IDCT_SIMPLEMMX 3
-#define FF_IDCT_LIBMPEG2MMX 4
-#define FF_IDCT_PS2 5
-#define FF_IDCT_MLIB 6
-#define FF_IDCT_ARM 7
-#define FF_IDCT_ALTIVEC 8
-#define FF_IDCT_SH4 9
-#define FF_IDCT_SIMPLEARM 10
-
- /**
- * slice count.
- * - encoding: set by lavc
- * - decoding: set by user (or 0)
- */
- int slice_count;
- /**
- * slice offsets in the frame in bytes.
- * - encoding: set/allocated by lavc
- * - decoding: set/allocated by user (or NULL)
- */
- int *slice_offset;
-
- /**
- * error concealment flags.
- * - encoding: unused
- * - decoding: set by user
- */
- int error_concealment;
-#define FF_EC_GUESS_MVS 1
-#define FF_EC_DEBLOCK 2
-
- /**
- * dsp_mask could be add used to disable unwanted CPU features
- * CPU features (i.e. MMX, SSE. ...)
- *
- * with FORCE flag you may instead enable given CPU features
- * (Dangerous: usable in case of misdetection, improper usage however will
- * result into program crash)
- */
- unsigned dsp_mask;
-#define FF_MM_FORCE 0x80000000 /* force usage of selected flags (OR) */
- /* lower 16 bits - CPU features */
-#ifdef HAVE_MMX
-#define FF_MM_MMX 0x0001 /* standard MMX */
-#define FF_MM_3DNOW 0x0004 /* AMD 3DNOW */
-#define FF_MM_MMXEXT 0x0002 /* SSE integer functions or AMD MMX ext */
-#define FF_MM_SSE 0x0008 /* SSE functions */
-#define FF_MM_SSE2 0x0010 /* PIV SSE2 functions */
-#endif /* HAVE_MMX */
-
- /**
- * bits per sample/pixel from the demuxer (needed for huffyuv).
- * - encoding: set by lavc
- * - decoding: set by user
- */
- int bits_per_sample;
-
- /**
- * prediction method (needed for huffyuv).
- * - encoding: set by user
- * - decoding: unused
- */
- int prediction_method;
-#define FF_PRED_LEFT 0
-#define FF_PRED_PLANE 1
-#define FF_PRED_MEDIAN 2
-
- /**
- * aspect ratio (0 if unknown).
- * - encoding: set by user.
- * - decoding: set by lavc.
- */
- float aspect_ratio;
-
- /**
- * the picture in the bitstream.
- * - encoding: set by lavc
- * - decoding: set by lavc
- */
- AVFrame *coded_frame;
-
- /**
- * debug.
- * - encoding: set by user.
- * - decoding: set by user.
- */
- int debug;
-#define FF_DEBUG_PICT_INFO 1
-#define FF_DEBUG_RC 2
-#define FF_DEBUG_BITSTREAM 4
-#define FF_DEBUG_MB_TYPE 8
-#define FF_DEBUG_QP 16
-#define FF_DEBUG_MV 32
-#define FF_DEBUG_VIS_MV 0x00000040
-#define FF_DEBUG_SKIP 0x00000080
-#define FF_DEBUG_STARTCODE 0x00000100
-#define FF_DEBUG_PTS 0x00000200
-#define FF_DEBUG_ER 0x00000400
-#define FF_DEBUG_MMCO 0x00000800
-#define FF_DEBUG_BUGS 0x00001000
-
- /**
- * error.
- * - encoding: set by lavc if flags&CODEC_FLAG_PSNR
- * - decoding: unused
- */
- uint64_t error[4];
-
- /**
- * minimum MB quantizer.
- * - encoding: set by user.
- * - decoding: unused
- */
- int mb_qmin;
-
- /**
- * maximum MB quantizer.
- * - encoding: set by user.
- * - decoding: unused
- */
- int mb_qmax;
-
- /**
- * motion estimation compare function.
- * - encoding: set by user.
- * - decoding: unused
- */
- int me_cmp;
- /**
- * subpixel motion estimation compare function.
- * - encoding: set by user.
- * - decoding: unused
- */
- int me_sub_cmp;
- /**
- * macroblock compare function (not supported yet).
- * - encoding: set by user.
- * - decoding: unused
- */
- int mb_cmp;
-#define FF_CMP_SAD 0
-#define FF_CMP_SSE 1
-#define FF_CMP_SATD 2
-#define FF_CMP_DCT 3
-#define FF_CMP_PSNR 4
-#define FF_CMP_BIT 5
-#define FF_CMP_RD 6
-#define FF_CMP_ZERO 7
-#define FF_CMP_CHROMA 256
-
- /**
- * ME diamond size & shape.
- * - encoding: set by user.
- * - decoding: unused
- */
- int dia_size;
-
- /**
- * amount of previous MV predictors (2a+1 x 2a+1 square).
- * - encoding: set by user.
- * - decoding: unused
- */
- int last_predictor_count;
-
- /**
- * pre pass for motion estimation.
- * - encoding: set by user.
- * - decoding: unused
- */
- int pre_me;
-
- /**
- * motion estimation pre pass compare function.
- * - encoding: set by user.
- * - decoding: unused
- */
- int me_pre_cmp;
-
- /**
- * ME pre pass diamond size & shape.
- * - encoding: set by user.
- * - decoding: unused
- */
- int pre_dia_size;
-
- /**
- * subpel ME quality.
- * - encoding: set by user.
- * - decoding: unused
- */
- int me_subpel_quality;
-
- /**
- * callback to negotiate the pixelFormat.
- * @param fmt is the list of formats which are supported by the codec,
- * its terminated by -1 as 0 is a valid format, the formats are ordered by quality
- * the first is allways the native one
- * @return the choosen format
- * - encoding: unused
- * - decoding: set by user, if not set then the native format will always be choosen
- */
- enum PixelFormat (*get_format)(struct AVCodecContext *s, enum PixelFormat * fmt);
-
- /**
- * DTG active format information (additionnal aspect ratio
- * information only used in DVB MPEG2 transport streams). 0 if
- * not set.
- *
- * - encoding: unused.
- * - decoding: set by decoder
- */
- int dtg_active_format;
-#define FF_DTG_AFD_SAME 8
-#define FF_DTG_AFD_4_3 9
-#define FF_DTG_AFD_16_9 10
-#define FF_DTG_AFD_14_9 11
-#define FF_DTG_AFD_4_3_SP_14_9 13
-#define FF_DTG_AFD_16_9_SP_14_9 14
-#define FF_DTG_AFD_SP_4_3 15
-
- /**
- * Maximum motion estimation search range in subpel units.
- * if 0 then no limit
- *
- * - encoding: set by user.
- * - decoding: unused.
- */
- int me_range;
-
- /**
- * frame_rate_base.
- * for variable fps this is 1
- * - encoding: set by user.
- * - decoding: set by lavc.
- * @todo move this after frame_rate
- */
-
- int frame_rate_base;
- /**
- * intra quantizer bias.
- * - encoding: set by user.
- * - decoding: unused
- */
- int intra_quant_bias;
-#define FF_DEFAULT_QUANT_BIAS 999999
-
- /**
- * inter quantizer bias.
- * - encoding: set by user.
- * - decoding: unused
- */
- int inter_quant_bias;
-
- /**
- * color table ID.
- * - encoding: unused.
- * - decoding: which clrtable should be used for 8bit RGB images
- * table have to be stored somewhere FIXME
- */
- int color_table_id;
-
- /**
- * internal_buffer count.
- * Dont touch, used by lavc default_get_buffer()
- */
- int internal_buffer_count;
-
- /**
- * internal_buffers.
- * Dont touch, used by lavc default_get_buffer()
- */
- void *internal_buffer;
-
-#define FF_QUALITY_SCALE 256
- /**
- * global quality for codecs which cannot change it per frame.
- * this should be proportional to MPEG1/2/4 qscale.
- * - encoding: set by user.
- * - decoding: unused
- */
- int global_quality;
-
-#define FF_CODER_TYPE_VLC 0
-#define FF_CODER_TYPE_AC 1
- /**
- * coder type
- * - encoding: set by user.
- * - decoding: unused
- */
- int coder_type;
-
- /**
- * context model
- * - encoding: set by user.
- * - decoding: unused
- */
- int context_model;
-
- /**
- * slice flags
- * - encoding: unused
- * - decoding: set by user.
- */
- int slice_flags;
-#define SLICE_FLAG_CODED_ORDER 0x0001 ///< draw_horiz_band() is called in coded order instead of display
-#define SLICE_FLAG_ALLOW_FIELD 0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
-#define SLICE_FLAG_ALLOW_PLANE 0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
-
- /**
- * XVideo Motion Acceleration
- * - encoding: forbidden
- * - decoding: set by decoder
- */
- int xvmc_acceleration;
-
- /**
- * macroblock decision mode
- * - encoding: set by user.
- * - decoding: unused
- */
- int mb_decision;
-#define FF_MB_DECISION_SIMPLE 0 ///< uses mb_cmp
-#define FF_MB_DECISION_BITS 1 ///< chooses the one which needs the fewest bits
-#define FF_MB_DECISION_RD 2 ///< rate distoration
-
- /**
- * custom intra quantization matrix
- * - encoding: set by user, can be NULL
- * - decoding: set by lavc
- */
- uint16_t *intra_matrix;
-
- /**
- * custom inter quantization matrix
- * - encoding: set by user, can be NULL
- * - decoding: set by lavc
- */
- uint16_t *inter_matrix;
-
- /**
- * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
- * this is used to workaround some encoder bugs
- * - encoding: unused
- * - decoding: set by user, will be converted to upper case by lavc during init
- */
- unsigned int stream_codec_tag;
-
- /**
- * scene change detection threshold.
- * 0 is default, larger means fewer detected scene changes
- * - encoding: set by user.
- * - decoding: unused
- */
- int scenechange_threshold;
-} AVCodecContext;
-
-
-/**
- * AVOption.
- */
-typedef struct AVOption {
- /** options' name */
- const char *name; /* if name is NULL, it indicates a link to next */
- /** short English text help or const struct AVOption* subpointer */
- const char *help; // const struct AVOption* sub;
- /** offset to context structure where the parsed value should be stored */
- int offset;
- /** options' type */
- int type;
-#define FF_OPT_TYPE_BOOL 1 ///< boolean - true,1,on (or simply presence)
-#define FF_OPT_TYPE_DOUBLE 2 ///< double
-#define FF_OPT_TYPE_INT 3 ///< integer
-#define FF_OPT_TYPE_STRING 4 ///< string (finished with \0)
-#define FF_OPT_TYPE_MASK 0x1f ///< mask for types - upper bits are various flags
-//#define FF_OPT_TYPE_EXPERT 0x20 // flag for expert option
-#define FF_OPT_TYPE_FLAG (FF_OPT_TYPE_BOOL | 0x40)
-#define FF_OPT_TYPE_RCOVERRIDE (FF_OPT_TYPE_STRING | 0x80)
- /** min value (min == max -> no limits) */
- double min;
- /** maximum value for double/int */
- double max;
- /** default boo [0,1]l/double/int value */
- double defval;
- /**
- * default string value (with optional semicolon delimited extra option-list
- * i.e. option1;option2;option3
- * defval might select other then first argument as default
- */
- const char *defstr;
-#define FF_OPT_MAX_DEPTH 10
-} AVOption;
-
-/**
- * Parse option(s) and sets fields in passed structure
- * @param strct structure where the parsed results will be written
- * @param list list with AVOptions
- * @param opts string with options for parsing
- */
-int avoption_parse(void* strct, const AVOption* list, const char* opts);
-
-
-/**
- * AVCodec.
- */
-typedef struct AVCodec {
- const char *name;
- enum CodecType type;
- int id;
- int priv_data_size;
- int (*init)(AVCodecContext *);
- int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
- int (*close)(AVCodecContext *);
- int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
- uint8_t *buf, int buf_size);
- int capabilities;
- const AVOption *options;
- struct AVCodec *next;
- void (*flush)(AVCodecContext *);
-} AVCodec;
-
-/**
- * four components are given, that's all.
- * the last component is alpha
- */
-typedef struct AVPicture {
- uint8_t *data[4];
- int linesize[4]; ///< number of bytes per line
-} AVPicture;
-
-/**
- * AVPaletteControl
- * This structure defines a method for communicating palette changes
- * between and demuxer and a decoder.
- */
-typedef struct AVPaletteControl {
-
- /* demuxer sets this to 1 to indicate the palette has changed;
- * decoder resets to 0 */
- int palette_changed;
-
- /* 256 3-byte RGB palette entries; the components should be
- * formatted in the buffer as "RGBRGB..." and should be scaled to
- * 8 bits if they originally represented 6-bit VGA palette
- * components */
- unsigned char palette[256 * 3];
-
-} AVPaletteControl;
-
-extern AVCodec ac3_encoder;
-extern AVCodec mp2_encoder;
-extern AVCodec mp3lame_encoder;
-extern AVCodec oggvorbis_encoder;
-extern AVCodec mpeg1video_encoder;
-extern AVCodec mpeg2video_encoder;
-extern AVCodec h263_encoder;
-extern AVCodec h263p_encoder;
-extern AVCodec flv_encoder;
-extern AVCodec rv10_encoder;
-extern AVCodec mjpeg_encoder;
-extern AVCodec ljpeg_encoder;
-extern AVCodec mpeg4_encoder;
-extern AVCodec msmpeg4v1_encoder;
-extern AVCodec msmpeg4v2_encoder;
-extern AVCodec msmpeg4v3_encoder;
-extern AVCodec wmv1_encoder;
-extern AVCodec wmv2_encoder;
-extern AVCodec huffyuv_encoder;
-extern AVCodec h264_encoder;
-extern AVCodec asv1_encoder;
-extern AVCodec asv2_encoder;
-extern AVCodec vcr1_encoder;
-extern AVCodec ffv1_encoder;
-extern AVCodec mdec_encoder;
-
-extern AVCodec h263_decoder;
-extern AVCodec mpeg4_decoder;
-extern AVCodec msmpeg4v1_decoder;
-extern AVCodec msmpeg4v2_decoder;
-extern AVCodec msmpeg4v3_decoder;
-extern AVCodec wmv1_decoder;
-extern AVCodec wmv2_decoder;
-extern AVCodec mpeg1video_decoder;
-extern AVCodec mpeg2video_decoder;
-extern AVCodec mpeg_xvmc_decoder;
-extern AVCodec h263i_decoder;
-extern AVCodec flv_decoder;
-extern AVCodec rv10_decoder;
-extern AVCodec svq1_decoder;
-extern AVCodec svq3_decoder;
-extern AVCodec dvvideo_decoder;
-extern AVCodec dvaudio_decoder;
-extern AVCodec wmav1_decoder;
-extern AVCodec wmav2_decoder;
-extern AVCodec mjpeg_decoder;
-extern AVCodec mjpegb_decoder;
-extern AVCodec mp2_decoder;
-extern AVCodec mp3_decoder;
-extern AVCodec mace3_decoder;
-extern AVCodec mace6_decoder;
-extern AVCodec huffyuv_decoder;
-extern AVCodec oggvorbis_decoder;
-extern AVCodec cyuv_decoder;
-extern AVCodec h264_decoder;
-extern AVCodec indeo3_decoder;
-extern AVCodec vp3_decoder;
-extern AVCodec amr_nb_decoder;
-extern AVCodec amr_nb_encoder;
-extern AVCodec aac_decoder;
-extern AVCodec mpeg4aac_decoder;
-extern AVCodec asv1_decoder;
-extern AVCodec asv2_decoder;
-extern AVCodec vcr1_decoder;
-extern AVCodec cljr_decoder;
-extern AVCodec ffv1_decoder;
-extern AVCodec fourxm_decoder;
-extern AVCodec mdec_decoder;
-extern AVCodec roq_decoder;
-extern AVCodec interplay_video_decoder;
-extern AVCodec xan_wc3_decoder;
-extern AVCodec ra_144_decoder;
-extern AVCodec ra_288_decoder;
-extern AVCodec roq_dpcm_decoder;
-extern AVCodec interplay_dpcm_decoder;
-extern AVCodec xan_dpcm_decoder;
-
-/* pcm codecs */
-#define PCM_CODEC(id, name) \
-extern AVCodec name ## _decoder; \
-extern AVCodec name ## _encoder
-
-PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
-PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
-PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
-PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
-PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
-PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
-PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
-PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
-
-/* adpcm codecs */
-
-PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
-PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
-PCM_CODEC(CODEC_ID_ADPCM_IMA_DK3, adpcm_ima_dk3);
-PCM_CODEC(CODEC_ID_ADPCM_IMA_DK4, adpcm_ima_dk4);
-PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
-PCM_CODEC(CODEC_ID_ADPCM_4XM, adpcm_4xm);
-
-#undef PCM_CODEC
-
-/* dummy raw video codec */
-extern AVCodec rawvideo_encoder;
-extern AVCodec rawvideo_decoder;
-
-/* the following codecs use external GPL libs */
-extern AVCodec ac3_decoder;
-
-/* resample.c */
-
-struct ReSampleContext;
-
-typedef struct ReSampleContext ReSampleContext;
-
-ReSampleContext *audio_resample_init(int output_channels, int input_channels,
- int output_rate, int input_rate);
-int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
-void audio_resample_close(ReSampleContext *s);
-
-/* YUV420 format is assumed ! */
-
-struct ImgReSampleContext;
-
-typedef struct ImgReSampleContext ImgReSampleContext;
-
-ImgReSampleContext *img_resample_init(int output_width, int output_height,
- int input_width, int input_height);
-
-ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
- int iwidth, int iheight,
- int topBand, int bottomBand,
- int leftBand, int rightBand);
-
-void img_resample(ImgReSampleContext *s,
- AVPicture *output, AVPicture *input);
-
-void img_resample_close(ImgReSampleContext *s);
-
-int avpicture_fill(AVPicture *picture, uint8_t *ptr,
- int pix_fmt, int width, int height);
-int avpicture_layout(AVPicture* src, int pix_fmt, int width, int height,
- unsigned char *dest, int dest_size);
-int avpicture_get_size(int pix_fmt, int width, int height);
-void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift);
-const char *avcodec_get_pix_fmt_name(int pix_fmt);
-enum PixelFormat avcodec_get_pix_fmt(const char* name);
-
-#define FF_LOSS_RESOLUTION 0x0001 /* loss due to resolution change */
-#define FF_LOSS_DEPTH 0x0002 /* loss due to color depth change */
-#define FF_LOSS_COLORSPACE 0x0004 /* loss due to color space conversion */
-#define FF_LOSS_ALPHA 0x0008 /* loss of alpha bits */
-#define FF_LOSS_COLORQUANT 0x0010 /* loss due to color quantization */
-#define FF_LOSS_CHROMA 0x0020 /* loss of chroma (e.g. rgb to gray conversion) */
-
-int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt,
- int has_alpha);
-int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt,
- int has_alpha, int *loss_ptr);
-
-#define FF_ALPHA_TRANSP 0x0001 /* image has some totally transparent pixels */
-#define FF_ALPHA_SEMI_TRANSP 0x0002 /* image has some transparent pixels */
-int img_get_alpha_info(AVPicture *src, int pix_fmt, int width, int height);
-
-/* convert among pixel formats */
-int img_convert(AVPicture *dst, int dst_pix_fmt,
- AVPicture *src, int pix_fmt,
- int width, int height);
-
-/* deinterlace a picture */
-int avpicture_deinterlace(AVPicture *dst, AVPicture *src,
- int pix_fmt, int width, int height);
-
-/* external high level API */
-
-extern AVCodec *first_avcodec;
-
-/* returns LIBAVCODEC_VERSION_INT constant */
-unsigned avcodec_version(void);
-/* returns LIBAVCODEC_BUILD constant */
-unsigned avcodec_build(void);
-void avcodec_init(void);
-
-void register_avcodec(AVCodec *format);
-AVCodec *avcodec_find_encoder(enum CodecID id);
-AVCodec *avcodec_find_encoder_by_name(const char *name);
-AVCodec *avcodec_find_decoder(enum CodecID id);
-AVCodec *avcodec_find_decoder_by_name(const char *name);
-void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
-
-void avcodec_get_context_defaults(AVCodecContext *s);
-AVCodecContext *avcodec_alloc_context(void);
-AVFrame *avcodec_alloc_frame(void);
-
-int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
-void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
-void avcodec_default_free_buffers(AVCodecContext *s);
-
-/**
- * opens / inits the AVCodecContext.
- * not thread save!
- */
-int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
-
-int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples,
- int *frame_size_ptr,
- uint8_t *buf, int buf_size);
-int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
- int *got_picture_ptr,
- uint8_t *buf, int buf_size);
-int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata,
- int *data_size_ptr,
- uint8_t *buf, int buf_size);
-int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
- const short *samples);
-int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
- const AVFrame *pict);
-
-int avcodec_close(AVCodecContext *avctx);
-
-void avcodec_register_all(void);
-
-void avcodec_flush_buffers(AVCodecContext *avctx);
-
-/* misc usefull functions */
-
-/**
- * returns a single letter to describe the picture type
- */
-char av_get_pict_type_char(int pict_type);
-
-/**
- * reduce a fraction.
- * this is usefull for framerate calculations
- * @param max the maximum allowed for dst_nom & dst_den
- * @return 1 if exact, 0 otherwise
- */
-int av_reduce(int *dst_nom, int *dst_den, int64_t nom, int64_t den, int64_t max);
-
-/**
- * rescale a 64bit integer.
- * a simple a*b/c isnt possible as it can overflow
- */
-int64_t av_rescale(int64_t a, int b, int c);
-
-
-/**
- * Interface for 0.5.0 version
- *
- * do not even think about it's usage for this moment
- */
-
-typedef struct {
- /// compressed size used from given memory buffer
- int size;
- /// I/P/B frame type
- int frame_type;
-} avc_enc_result_t;
-
-/**
- * Commands
- * order can't be changed - once it was defined
- */
-typedef enum {
- // general commands
- AVC_OPEN_BY_NAME = 0xACA000,
- AVC_OPEN_BY_CODEC_ID,
- AVC_OPEN_BY_FOURCC,
- AVC_CLOSE,
-
- AVC_FLUSH,
- // pin - struct { uint8_t* src, uint_t src_size }
- // pout - struct { AVPicture* img, consumed_bytes,
- AVC_DECODE,
- // pin - struct { AVPicture* img, uint8_t* dest, uint_t dest_size }
- // pout - uint_t used_from_dest_size
- AVC_ENCODE,
-
- // query/get video commands
- AVC_GET_VERSION = 0xACB000,
- AVC_GET_WIDTH,
- AVC_GET_HEIGHT,
- AVC_GET_DELAY,
- AVC_GET_QUANT_TABLE,
- // ...
-
- // query/get audio commands
- AVC_GET_FRAME_SIZE = 0xABC000,
-
- // maybe define some simple structure which
- // might be passed to the user - but they can't
- // contain any codec specific parts and these
- // calls are usualy necessary only few times
-
- // set video commands
- AVC_SET_WIDTH = 0xACD000,
- AVC_SET_HEIGHT,
-
- // set video encoding commands
- AVC_SET_FRAME_RATE = 0xACD800,
- AVC_SET_QUALITY,
- AVC_SET_HURRY_UP,
-
- // set audio commands
- AVC_SET_SAMPLE_RATE = 0xACE000,
- AVC_SET_CHANNELS
-
-} avc_cmd_t;
-
-/**
- * \param handle allocated private structure by libavcodec
- * for initialization pass NULL - will be returned pout
- * user is supposed to know nothing about its structure
- * \param cmd type of operation to be performed
- * \param pint input parameter
- * \param pout output parameter
- *
- * \returns command status - eventually for query command it might return
- * integer resulting value
- */
-int avcodec(void* handle, avc_cmd_t cmd, void* pin, void* pout);
-
-/* memory */
-void *av_malloc(unsigned int size);
-void *av_mallocz(unsigned int size);
-void *av_realloc(void *ptr, unsigned int size);
-void av_free(void *ptr);
-char *av_strdup(const char *s);
-void __av_freep(void **ptr);
-#define av_freep(p) __av_freep((void **)(p))
-void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size);
-/* for static data only */
-/* call av_free_static to release all staticaly allocated tables */
-void av_free_static(void);
-void *__av_mallocz_static(void** location, unsigned int size);
-#define av_mallocz_static(p, s) __av_mallocz_static((void **)(p), s)
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* AVCODEC_H */
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