--- /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 */
projects / synfig.git / blobdiff