X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;ds=sidebyside;f=synfig-core%2Ftags%2Fsynfig_0_61_05%2Fsynfig-core%2Fsrc%2Fmodules%2Fmod_libavcodec%2Flibavcodec%2Favcodec.h;fp=synfig-core%2Ftags%2Fsynfig_0_61_05%2Fsynfig-core%2Fsrc%2Fmodules%2Fmod_libavcodec%2Flibavcodec%2Favcodec.h;h=0000000000000000000000000000000000000000;hb=6fa8f2f38d4b0b35f8539bf94e27ae27015c7689;hp=45874ac1f58ca12d033233e77a4bcafb58f06b1f;hpb=47fce282611fbba1044921d22ca887f9b53ad91a;p=synfig.git diff --git a/synfig-core/tags/synfig_0_61_05/synfig-core/src/modules/mod_libavcodec/libavcodec/avcodec.h b/synfig-core/tags/synfig_0_61_05/synfig-core/src/modules/mod_libavcodec/libavcodec/avcodec.h deleted file mode 100644 index 45874ac..0000000 --- a/synfig-core/tags/synfig_0_61_05/synfig-core/src/modules/mod_libavcodec/libavcodec/avcodec.h +++ /dev/null @@ -1,1688 +0,0 @@ -#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
- * 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 */