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#ifndef AVCODEC_H
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#define AVCODEC_H
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/**
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 * @file avcodec.h
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 * external api header.
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 */
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "common.h"
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#define LIBAVCODEC_VERSION_INT 0x000406
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#define LIBAVCODEC_VERSION     "0.4.6"
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#define LIBAVCODEC_BUILD       4663
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#define LIBAVCODEC_BUILD_STR   "4663"
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#define LIBAVCODEC_IDENT        "FFmpeg" LIBAVCODEC_VERSION "b" LIBAVCODEC_BUILD_STR
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enum CodecID {
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    CODEC_ID_NONE, 
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    CODEC_ID_MPEG1VIDEO,
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    CODEC_ID_H263,
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    CODEC_ID_RV10,
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    CODEC_ID_MP2,
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    CODEC_ID_MP3LAME,
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    CODEC_ID_VORBIS,
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    CODEC_ID_AC3,
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    CODEC_ID_MJPEG,
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    CODEC_ID_MJPEGB,
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    CODEC_ID_MPEG4,
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    CODEC_ID_RAWVIDEO,
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    CODEC_ID_MSMPEG4V1,
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    CODEC_ID_MSMPEG4V2,
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    CODEC_ID_MSMPEG4V3,
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    CODEC_ID_WMV1,
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    CODEC_ID_WMV2,
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    CODEC_ID_H263P,
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    CODEC_ID_H263I,
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    CODEC_ID_SVQ1,
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    CODEC_ID_DVVIDEO,
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    CODEC_ID_DVAUDIO,
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    CODEC_ID_WMAV1,
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    CODEC_ID_WMAV2,
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    CODEC_ID_MACE3,
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    CODEC_ID_MACE6,
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    CODEC_ID_HUFFYUV,
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    CODEC_ID_CYUV,
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    CODEC_ID_H264,
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    /* various pcm "codecs" */
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    CODEC_ID_PCM_S16LE,
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    CODEC_ID_PCM_S16BE,
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    CODEC_ID_PCM_U16LE,
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    CODEC_ID_PCM_U16BE,
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    CODEC_ID_PCM_S8,
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    CODEC_ID_PCM_U8,
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    CODEC_ID_PCM_MULAW,
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    CODEC_ID_PCM_ALAW,
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    /* various adpcm codecs */
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    CODEC_ID_ADPCM_IMA_QT,
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    CODEC_ID_ADPCM_IMA_WAV,
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    CODEC_ID_ADPCM_MS,
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};
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enum CodecType {
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    CODEC_TYPE_UNKNOWN = -1,
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    CODEC_TYPE_VIDEO,
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    CODEC_TYPE_AUDIO,
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};
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/**
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 * Pixel format.
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 */
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enum PixelFormat {
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    PIX_FMT_YUV420P,
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    PIX_FMT_YUV422,
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    PIX_FMT_RGB24,     ///< 3 bytes, R is first 
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    PIX_FMT_BGR24,     ///< 3 bytes, B is first 
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    PIX_FMT_YUV422P,
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    PIX_FMT_YUV444P,
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    PIX_FMT_RGBA32,    ///< always stored in cpu endianness 
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    PIX_FMT_YUV410P,
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    PIX_FMT_YUV411P,
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    PIX_FMT_RGB565,    ///< always stored in cpu endianness 
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    PIX_FMT_RGB555,    ///< always stored in cpu endianness, most significant bit to 1 
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    PIX_FMT_GRAY8,
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    PIX_FMT_MONOWHITE, ///< 0 is white 
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    PIX_FMT_MONOBLACK, ///< 0 is black 
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    PIX_FMT_PAL8,      ///< 8 bit with RGBA palette 
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    PIX_FMT_NB,
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};
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/* currently unused, may be used if 24/32 bits samples ever supported */
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enum SampleFormat {
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    SAMPLE_FMT_S16 = 0,         ///< signed 16 bits 
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};
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/* in bytes */
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#define AVCODEC_MAX_AUDIO_FRAME_SIZE 131072
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/**
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 * Required number of zero bytes at the end of the input bitstream for decoding.
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 * to avoid overreading (and possibly segfaulting)
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 */
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#define FF_INPUT_BUFFER_PADDING_SIZE 8
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/* motion estimation type, EPZS by default */
113
enum Motion_Est_ID {
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    ME_ZERO = 1,
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    ME_FULL,
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    ME_LOG,
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    ME_PHODS,
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    ME_EPZS,
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    ME_X1
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};
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typedef struct RcOverride{
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    int start_frame;
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    int end_frame;
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    int qscale; // if this is 0 then quality_factor will be used instead
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    float quality_factor;
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} RcOverride;
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/* only for ME compatiblity with old apps */
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extern int motion_estimation_method;
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/* ME algos sorted by quality */
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static const int Motion_Est_QTab[] = { ME_ZERO, ME_PHODS, ME_LOG, 
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                                       ME_X1, ME_EPZS, ME_FULL };
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#define FF_MAX_B_FRAMES 8
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/* encoding support
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   these flags can be passed in AVCodecContext.flags before initing 
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   Note: note not everything is supported yet 
142
*/
143

    
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#define CODEC_FLAG_HQ     0x0001  ///< brute force MB-type decission mode (slow) 
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#define CODEC_FLAG_QSCALE 0x0002  ///< use fixed qscale 
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#define CODEC_FLAG_4MV    0x0004  ///< 4 MV per MB allowed 
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#define CODEC_FLAG_QPEL   0x0010  ///< use qpel MC 
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#define CODEC_FLAG_GMC    0x0020  ///< use GMC 
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#define CODEC_FLAG_PART   0x0080  ///< use data partitioning 
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/* parent program gurantees that the input for b-frame containing streams is not written to 
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   for at least s->max_b_frames+1 frames, if this is not set than the input will be copied */
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#define CODEC_FLAG_INPUT_PRESERVED 0x0100
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#define CODEC_FLAG_PASS1 0x0200   ///< use internal 2pass ratecontrol in first  pass mode 
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#define CODEC_FLAG_PASS2 0x0400   ///< use internal 2pass ratecontrol in second pass mode 
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#define CODEC_FLAG_EXTERN_HUFF 0x1000 ///< use external huffman table (for mjpeg) 
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#define CODEC_FLAG_GRAY  0x2000   ///< only decode/encode grayscale 
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#define CODEC_FLAG_EMU_EDGE 0x4000///< dont draw edges 
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#define CODEC_FLAG_PSNR           0x8000 ///< error[?] variables will be set during encoding 
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#define CODEC_FLAG_TRUNCATED  0x00010000 /** input bitstream might be truncated at a random location instead 
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                                            of only at frame boundaries */
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#define CODEC_FLAG_NORMALIZE_AQP  0x00020000 ///< normalize adaptive quantization 
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#define CODEC_FLAG_INTERLACED_DCT 0x00040000 ///< use interlaced dct 
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#define CODEC_FLAG_LOW_DELAY      0x00080000 ///< force low delay / will fail on b frames 
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#define CODEC_FLAG_ALT_SCAN       0x00100000 ///< use alternate scan 
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#define CODEC_FLAG_TRELLIS_QUANT  0x00200000 ///< use trellis quantization 
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#define CODEC_FLAG_GLOBAL_HEADER  0x00400000 ///< place global headers in extradata instead of every keyframe 
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#define CODEC_FLAG_BITEXACT       0x00800000 ///< use only bitexact stuff (except (i)dct) 
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/* Fx : Flag for h263+ extra options */
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#define CODEC_FLAG_H263P_AIC      0x01000000 ///< Advanced intra coding 
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#define CODEC_FLAG_H263P_UMV      0x02000000 ///< Unlimited motion vector  
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/* For advanced prediction mode, we reuse the 4MV flag */
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/* Unsupported options :
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 *                 Syntax Arithmetic coding (SAC)
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 *                 Deblocking filter internal loop
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 *                 Slice structured
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 *                 Reference Picture Selection
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 *                 Independant Segment Decoding
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 *                 Alternative Inter *                 VLC
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 *                 Modified Quantization */
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/* /Fx */
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/* codec capabilities */
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#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 ///< decoder can use draw_horiz_band callback 
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#define CODEC_CAP_DR1             0x0002 ///< direct rendering method 1 
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/* if 'parse_only' field is true, then avcodec_parse_frame() can be
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   used */
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#define CODEC_CAP_PARSE_ONLY      0x0004
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#define CODEC_CAP_TRUNCATED       0x0008
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190
#define FF_COMMON_FRAME \
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    /**\
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     * pointer to the picture planes.\
193
     * this might be different from the first allocated byte\
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     * - encoding: \
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     * - decoding: \
196
     */\
197
    uint8_t *data[4];\
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    int linesize[4];\
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    /**\
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     * pointer to the first allocated byte of the picture. can be used in get_buffer/release_buffer\
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     * this isnt used by lavc unless the default get/release_buffer() is used\
202
     * - encoding: \
203
     * - decoding: \
204
     */\
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    uint8_t *base[4];\
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    /**\
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     * 1 -> keyframe, 0-> not\
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     * - encoding: set by lavc\
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     * - decoding: set by lavc\
210
     */\
211
    int key_frame;\
212
\
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    /**\
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     * picture type of the frame, see ?_TYPE below.\
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     * - encoding: set by lavc for coded_picture (and set by user for input)\
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     * - decoding: set by lavc\
217
     */\
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    int pict_type;\
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\
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    /**\
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     * presentation timestamp in micro seconds (time when frame should be shown to user)\
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     * if 0 then the frame_rate will be used as reference\
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     * - encoding: MUST be set by user\
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     * - decoding: set by lavc\
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     */\
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    long long int pts;\
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\
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    /**\
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     * picture number in bitstream order.\
230
     * - encoding: set by\
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     * - decoding: set by lavc\
232
     */\
233
    int coded_picture_number;\
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    /**\
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     * picture number in display order.\
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     * - encoding: set by\
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     * - decoding: set by lavc\
238
     */\
239
    int display_picture_number;\
240
\
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    /**\
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     * quality (between 1 (good) and 31 (bad)) \
243
     * - encoding: set by lavc for coded_picture (and set by user for input)\
244
     * - decoding: set by lavc\
245
     */\
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    float quality; \
247
\
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    /**\
249
     * buffer age (1->was last buffer and dint change, 2->..., ...).\
250
     * set to something large if the buffer has not been used yet \
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     * - encoding: unused\
252
     * - decoding: MUST be set by get_buffer()\
253
     */\
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    int age;\
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\
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    /**\
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     * is this picture used as reference\
258
     * - encoding: unused\
259
     * - decoding: set by lavc (before get_buffer() call))\
260
     */\
261
    int reference;\
262
\
263
    /**\
264
     * QP table\
265
     * - encoding: unused\
266
     * - decoding: set by lavc\
267
     */\
268
    int8_t *qscale_table;\
269
    /**\
270
     * QP store stride\
271
     * - encoding: unused\
272
     * - decoding: set by lavc\
273
     */\
274
    int qstride;\
275
\
276
    /**\
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     * mbskip_table[mb]>=1 if MB didnt change\
278
     * stride= mb_width = (width+15)>>4\
279
     * - encoding: unused\
280
     * - decoding: set by lavc\
281
     */\
282
    uint8_t *mbskip_table;\
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\
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    /**\
285
     * for some private data of the user\
286
     * - encoding: unused\
287
     * - decoding: set by user\
288
     */\
289
    void *opaque;\
290
\
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    /**\
292
     * error\
293
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR\
294
     * - decoding: unused\
295
     */\
296
    uint64_t error[4];\
297
\
298
    /**\
299
     * type of the buffer (to keep track of who has to dealloc data[*])\
300
     * - encoding: set by the one who allocs it\
301
     * - decoding: set by the one who allocs it\
302
     * Note: user allocated (direct rendering) & internal buffers can not coexist currently\ 
303
     */\
304
    int type;\
305
    \
306
    /**\
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     * when decoding, this signal how much the picture must be delayed.\
308
     * extra_delay = repeat_pict / (2*fps)\
309
     * - encoding: unused\
310
     * - decoding: set by lavc\
311
     */\
312
    int repeat_pict;
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#define FF_BUFFER_TYPE_INTERNAL 1
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#define FF_BUFFER_TYPE_USER     2 ///< Direct rendering buffers
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#define FF_BUFFER_TYPE_SHARED   4 ///< buffer from somewher else, dont dealloc
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#define FF_I_TYPE 1 // Intra
321
#define FF_P_TYPE 2 // Predicted
322
#define FF_B_TYPE 3 // Bi-dir predicted
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#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
324
#define FF_SI_TYPE 5
325
#define FF_SP_TYPE 6
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327
/**
328
 * Audio Video Frame.
329
 */
330
typedef struct AVFrame {
331
    FF_COMMON_FRAME
332
} AVFrame;
333

    
334
#define DEFAULT_FRAME_RATE_BASE 1001000
335

    
336
/**
337
 * main external api structure.
338
 */
339
typedef struct AVCodecContext {
340
    /**
341
     * the average bitrate.
342
     * - encoding: set by user. unused for constant quantizer encoding
343
     * - decoding: set by lavc. 0 or some bitrate if this info is available in the stream 
344
     */
345
    int bit_rate;
346

    
347
    /**
348
     * number of bits the bitstream is allowed to diverge from the reference.
349
     *           the reference can be CBR (for CBR pass1) or VBR (for pass2)
350
     * - encoding: set by user. unused for constant quantizer encoding
351
     * - decoding: unused
352
     */
353
    int bit_rate_tolerance; 
354

    
355
    /**
356
     * CODEC_FLAG_*.
357
     * - encoding: set by user.
358
     * - decoding: set by user.
359
     */
360
    int flags;
361

    
362
    /**
363
     * some codecs needs additionnal format info. It is stored here
364
     * - encoding: set by user. 
365
     * - decoding: set by lavc. (FIXME is this ok?)
366
     */
367
    int sub_id;
368

    
369
    /**
370
     * motion estimation algorithm used for video coding.
371
     * - encoding: MUST be set by user.
372
     * - decoding: unused
373
     */
374
    int me_method;
375

    
376
    /**
377
     * some codecs need / can use extra-data like huffman tables.
378
     * mjpeg: huffman tables
379
     * rv10: additional flags
380
     * mpeg4: global headers (they can be in the bitstream or here)
381
     * - encoding: set/allocated/freed by lavc.
382
     * - decoding: set/allocated/freed by user.
383
     */
384
    void *extradata;
385
    int extradata_size;
386
    
387
    /* video only */
388
    /**
389
     * frames per sec multiplied by frame_rate_base.
390
     * for variable fps this is the precission, so if the timestamps 
391
     * can be specified in msec precssion then this is 1000*frame_rate_base
392
     * - encoding: MUST be set by user
393
     * - decoding: set by lavc. 0 or the frame_rate if available
394
     */
395
    int frame_rate;
396
    
397
    /**
398
     * width / height.
399
     * - encoding: MUST be set by user. 
400
     * - decoding: set by user, some codecs might override / change it during playback
401
     */
402
    int width, height;
403
    
404
#define FF_ASPECT_SQUARE 1
405
#define FF_ASPECT_4_3_625 2
406
#define FF_ASPECT_4_3_525 3
407
#define FF_ASPECT_16_9_625 4
408
#define FF_ASPECT_16_9_525 5
409
#define FF_ASPECT_EXTENDED 15
410

    
411
    /**
412
     * the number of pictures in a group of pitures, or 0 for intra_only.
413
     * - encoding: set by user.
414
     * - decoding: unused
415
     */
416
    int gop_size;
417

    
418
    /**
419
     * pixel format, see PIX_FMT_xxx.
420
     * - encoding: unused
421
     * - decoding: set by lavc.
422
     */
423
    enum PixelFormat pix_fmt;
424
 
425
    /**
426
     * Frame rate emulation. If not zero lower layer (i.e. format handler) 
427
     * has to read frames at native frame rate.
428
     * - encoding: set by user.
429
     * - decoding: unused.
430
     */
431
    int rate_emu;
432
       
433
    /**
434
     * if non NULL, 'draw_horiz_band' is called by the libavcodec
435
     * decoder to draw an horizontal band. It improve cache usage. Not
436
     * all codecs can do that. You must check the codec capabilities
437
     * before
438
     * - encoding: unused
439
     * - decoding: set by user.
440
     */
441
    void (*draw_horiz_band)(struct AVCodecContext *s,
442
                            uint8_t **src_ptr, int linesize,
443
                            int y, int width, int height);
444

    
445
    /* audio only */
446
    int sample_rate; ///< samples per sec 
447
    int channels;
448
    int sample_fmt;  ///< sample format, currenly unused 
449

    
450
    /* the following data should not be initialized */
451
    int frame_size;     ///< in samples, initialized when calling 'init' 
452
    int frame_number;   ///< audio or video frame number 
453
    int real_pict_num;  ///< returns the real picture number of previous encoded frame 
454
    
455
    /**
456
     * number of frames the decoded output will be delayed relative to 
457
     * the encoded input.
458
     * - encoding: set by lavc.
459
     * - decoding: unused
460
     */
461
    int delay;
462
    
463
    /* - encoding parameters */
464
    float qcompress;  ///< amount of qscale change between easy & hard scenes (0.0-1.0)
465
    float qblur;      ///< amount of qscale smoothing over time (0.0-1.0) 
466
    
467
    /**
468
     * minimum quantizer.
469
     * - encoding: set by user.
470
     * - decoding: unused
471
     */
472
    int qmin;
473

    
474
    /**
475
     * maximum quantizer.
476
     * - encoding: set by user.
477
     * - decoding: unused
478
     */
479
    int qmax;
480

    
481
    /**
482
     * maximum quantizer difference etween frames.
483
     * - encoding: set by user.
484
     * - decoding: unused
485
     */
486
    int max_qdiff;
487

    
488
    /**
489
     * maximum number of b frames between non b frames.
490
     * note: the output will be delayed by max_b_frames+1 relative to the input
491
     * - encoding: set by user.
492
     * - decoding: unused
493
     */
494
    int max_b_frames;
495

    
496
    /**
497
     * qscale factor between ip and b frames.
498
     * - encoding: set by user.
499
     * - decoding: unused
500
     */
501
    float b_quant_factor;
502
    
503
    /** obsolete FIXME remove */
504
    int rc_strategy;
505
    int b_frame_strategy;
506

    
507
    /**
508
     * hurry up amount.
509
     * - encoding: unused
510
     * - decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
511
     */
512
    int hurry_up;
513
    
514
    struct AVCodec *codec;
515
    
516
    void *priv_data;
517

    
518
    /* The following data is for RTP friendly coding */
519
    /* By now only H.263/H.263+/MPEG4 coder honours this   */
520
    int rtp_mode;   /* 1 for activate RTP friendly-mode           */
521
                    /* highers numbers represent more error-prone */
522
                    /* enviroments, by now just "1" exist         */
523
    
524
    int rtp_payload_size;   /* The size of the RTP payload, the coder will  */
525
                            /* do it's best to deliver a chunk with size    */
526
                            /* below rtp_payload_size, the chunk will start */
527
                            /* with a start code on some codecs like H.263  */
528
                            /* This doesn't take account of any particular  */
529
                            /* headers inside the transmited RTP payload    */
530

    
531
    
532
    /* The RTP callcack: This function is called  */
533
    /* every time the encoder as a packet to send */
534
    /* Depends on the encoder if the data starts  */
535
    /* with a Start Code (it should) H.263 does   */
536
    void (*rtp_callback)(void *data, int size, int packet_number); 
537

    
538
    /* statistics, used for 2-pass encoding */
539
    int mv_bits;
540
    int header_bits;
541
    int i_tex_bits;
542
    int p_tex_bits;
543
    int i_count;
544
    int p_count;
545
    int skip_count;
546
    int misc_bits;
547
    
548
    /**
549
     * number of bits used for the previously encoded frame.
550
     * - encoding: set by lavc
551
     * - decoding: unused
552
     */
553
    int frame_bits;
554

    
555
    /**
556
     * private data of the user, can be used to carry app specific stuff.
557
     * - encoding: set by user
558
     * - decoding: set by user
559
     */
560
    void *opaque;
561

    
562
    char codec_name[32];
563
    enum CodecType codec_type; /* see CODEC_TYPE_xxx */
564
    enum CodecID codec_id; /* see CODEC_ID_xxx */
565
    
566
    /**
567
     * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
568
     * this is used to workaround some encoder bugs
569
     * - encoding: unused
570
     * - decoding: set by user, will be converted to upper case by lavc during init
571
     */
572
    unsigned int codec_tag;
573
    
574
    /**
575
     * workaround bugs in encoders which sometimes cannot be detected automatically.
576
     * - encoding: unused
577
     * - decoding: set by user
578
     */
579
    int workaround_bugs;
580
#define FF_BUG_AUTODETECT       1  ///< autodetection
581
#define FF_BUG_OLD_MSMPEG4      2
582
#define FF_BUG_XVID_ILACE       4
583
#define FF_BUG_UMP4             8
584
#define FF_BUG_NO_PADDING       16
585
#define FF_BUG_AC_VLC           32
586
#define FF_BUG_QPEL_CHROMA      64
587
#define FF_BUG_STD_QPEL         128
588
#define FF_BUG_QPEL_CHROMA2     256
589
#define FF_BUG_DIRECT_BLOCKSIZE 512
590
#define FF_BUG_EDGE             1024
591
//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
592
        
593
    /**
594
     * luma single coeff elimination threshold.
595
     * - encoding: set by user
596
     * - decoding: unused
597
     */
598
    int luma_elim_threshold;
599
    
600
    /**
601
     * chroma single coeff elimination threshold.
602
     * - encoding: set by user
603
     * - decoding: unused
604
     */
605
    int chroma_elim_threshold;
606
    
607
    /**
608
     * strictly follow the std (MPEG4, ...).
609
     * - encoding: set by user
610
     * - decoding: unused
611
     */
612
    int strict_std_compliance;
613
    
614
    /**
615
     * qscale offset between ip and b frames.
616
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
617
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
618
     * - encoding: set by user.
619
     * - decoding: unused
620
     */
621
    float b_quant_offset;
622
    
623
    /**
624
     * error resilience higher values will detect more errors but may missdetect
625
     * some more or less valid parts as errors.
626
     * - encoding: unused
627
     * - decoding: set by user
628
     */
629
    int error_resilience;
630
#define FF_ER_CAREFULL        1
631
#define FF_ER_COMPLIANT       2
632
#define FF_ER_AGGRESSIVE      3
633
#define FF_ER_VERY_AGGRESSIVE 4
634
    
635
    /**
636
     * called at the beginning of each frame to get a buffer for it.
637
     * if pic.reference is set then the frame will be read later by lavc
638
     * - encoding: unused
639
     * - decoding: set by lavc, user can override
640
     */
641
    int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
642
    
643
    /**
644
     * called to release buffers which where allocated with get_buffer.
645
     * a released buffer can be reused in get_buffer()
646
     * pic.data[*] must be set to NULL
647
     * - encoding: unused
648
     * - decoding: set by lavc, user can override
649
     */
650
    void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
651

    
652
    /**
653
     * is 1 if the decoded stream contains b frames, 0 otherwise.
654
     * - encoding: unused
655
     * - decoding: set by lavc
656
     */
657
    int has_b_frames;
658
    
659
    int block_align; ///< used by some WAV based audio codecs
660
    
661
    int parse_only; /* - decoding only: if true, only parsing is done
662
                       (function avcodec_parse_frame()). The frame
663
                       data is returned. Only MPEG codecs support this now. */
664
    
665
    /**
666
     * 0-> h263 quant 1-> mpeg quant.
667
     * - encoding: set by user.
668
     * - decoding: unused
669
     */
670
    int mpeg_quant;
671
    
672
    /**
673
     * pass1 encoding statistics output buffer.
674
     * - encoding: set by lavc
675
     * - decoding: unused
676
     */
677
    char *stats_out;
678
    
679
    /**
680
     * pass2 encoding statistics input buffer.
681
     * concatenated stuff from stats_out of pass1 should be placed here
682
     * - encoding: allocated/set/freed by user
683
     * - decoding: unused
684
     */
685
    char *stats_in;
686
    
687
    /**
688
     * ratecontrol qmin qmax limiting method.
689
     * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
690
     * - encoding: set by user.
691
     * - decoding: unused
692
     */
693
    float rc_qsquish;
694

    
695
    float rc_qmod_amp;
696
    int rc_qmod_freq;
697
    
698
    /**
699
     * ratecontrol override, see RcOverride.
700
     * - encoding: allocated/set/freed by user.
701
     * - decoding: unused
702
     */
703
    RcOverride *rc_override;
704
    int rc_override_count;
705
    
706
    /**
707
     * rate control equation.
708
     * - encoding: set by user
709
     * - decoding: unused
710
     */
711
    char *rc_eq;
712
    
713
    /**
714
     * maximum bitrate.
715
     * - encoding: set by user.
716
     * - decoding: unused
717
     */
718
    int rc_max_rate;
719
    
720
    /**
721
     * minimum bitrate.
722
     * - encoding: set by user.
723
     * - decoding: unused
724
     */
725
    int rc_min_rate;
726
    
727
    /**
728
     * decoder bitstream buffer size.
729
     * - encoding: set by user.
730
     * - decoding: unused
731
     */
732
    int rc_buffer_size;
733
    float rc_buffer_aggressivity;
734

    
735
    /**
736
     * qscale factor between p and i frames.
737
     * - encoding: set by user.
738
     * - decoding: unused
739
     */
740
    float i_quant_factor;
741
    
742
    /**
743
     * qscale offset between p and i frames.
744
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
745
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
746
     * - encoding: set by user.
747
     * - decoding: unused
748
     */
749
    float i_quant_offset;
750
    
751
    /**
752
     * initial complexity for pass1 ratecontrol.
753
     * - encoding: set by user.
754
     * - decoding: unused
755
     */
756
    float rc_initial_cplx;
757

    
758
    /**
759
     * dct algorithm, see FF_DCT_* below.
760
     * - encoding: set by user
761
     * - decoding: unused
762
     */
763
    int dct_algo;
764
#define FF_DCT_AUTO    0
765
#define FF_DCT_FASTINT 1
766
#define FF_DCT_INT     2
767
#define FF_DCT_MMX     3
768
#define FF_DCT_MLIB    4
769
#define FF_DCT_ALTIVEC 5
770
    
771
    /**
772
     * luminance masking (0-> disabled).
773
     * - encoding: set by user
774
     * - decoding: unused
775
     */
776
    float lumi_masking;
777
    
778
    /**
779
     * temporary complexity masking (0-> disabled).
780
     * - encoding: set by user
781
     * - decoding: unused
782
     */
783
    float temporal_cplx_masking;
784
    
785
    /**
786
     * spatial complexity masking (0-> disabled).
787
     * - encoding: set by user
788
     * - decoding: unused
789
     */
790
    float spatial_cplx_masking;
791
    
792
    /**
793
     * p block masking (0-> disabled).
794
     * - encoding: set by user
795
     * - decoding: unused
796
     */
797
    float p_masking;
798

    
799
    /**
800
     * darkness masking (0-> disabled).
801
     * - encoding: set by user
802
     * - decoding: unused
803
     */
804
    float dark_masking;
805
    
806
    
807
    /* for binary compatibility */
808
    int unused;
809
    
810
    /**
811
     * idct algorithm, see FF_IDCT_* below.
812
     * - encoding: set by user
813
     * - decoding: set by user
814
     */
815
    int idct_algo;
816
#define FF_IDCT_AUTO         0
817
#define FF_IDCT_INT          1
818
#define FF_IDCT_SIMPLE       2
819
#define FF_IDCT_SIMPLEMMX    3
820
#define FF_IDCT_LIBMPEG2MMX  4
821
#define FF_IDCT_PS2          5
822
#define FF_IDCT_MLIB         6
823
#define FF_IDCT_ARM          7
824
#define FF_IDCT_ALTIVEC      8
825

    
826
    /**
827
     * slice count.
828
     * - encoding: set by lavc
829
     * - decoding: set by user (or 0)
830
     */
831
    int slice_count;
832
    /**
833
     * slice offsets in the frame in bytes.
834
     * - encoding: set/allocated by lavc
835
     * - decoding: set/allocated by user (or NULL)
836
     */
837
    int *slice_offset;
838

    
839
    /**
840
     * error concealment flags.
841
     * - encoding: unused
842
     * - decoding: set by user
843
     */
844
    int error_concealment;
845
#define FF_EC_GUESS_MVS   1
846
#define FF_EC_DEBLOCK     2
847

    
848
    /**
849
     * dsp_mask could be add used to disable unwanted CPU features
850
     * CPU features (i.e. MMX, SSE. ...)
851
     *
852
     * with FORCE flag you may instead enable given CPU features
853
     * (Dangerous: usable in case of misdetection, improper usage however will
854
     * result into program crash)
855
     */
856
    unsigned dsp_mask;
857
#define FF_MM_FORCE        0x80000000 /* force usage of selected flags (OR) */
858
    /* lower 16 bits - CPU features */
859
#ifdef HAVE_MMX
860
#define FF_MM_MMX        0x0001 /* standard MMX */
861
#define FF_MM_3DNOW        0x0004 /* AMD 3DNOW */
862
#define FF_MM_MMXEXT        0x0002 /* SSE integer functions or AMD MMX ext */
863
#define FF_MM_SSE        0x0008 /* SSE functions */
864
#define FF_MM_SSE2        0x0010 /* PIV SSE2 functions */
865
#endif /* HAVE_MMX */
866

    
867
    /**
868
     * bits per sample/pixel from the demuxer (needed for huffyuv).
869
     * - encoding: set by lavc
870
     * - decoding: set by user
871
     */
872
     int bits_per_sample;
873
    
874
    /**
875
     * prediction method (needed for huffyuv).
876
     * - encoding: set by user
877
     * - decoding: unused
878
     */
879
     int prediction_method;
880
#define FF_PRED_LEFT   0
881
#define FF_PRED_PLANE  1
882
#define FF_PRED_MEDIAN 2
883
    
884
    /**
885
     * aspect ratio (0 if unknown).
886
     * - encoding: set by user.
887
     * - decoding: set by lavc.
888
     */
889
    float aspect_ratio;
890

    
891
    /**
892
     * the picture in the bitstream.
893
     * - encoding: set by lavc
894
     * - decoding: set by lavc
895
     */
896
    AVFrame *coded_frame;
897

    
898
    /**
899
     * debug.
900
     * - encoding: set by user.
901
     * - decoding: set by user.
902
     */
903
    int debug;
904
#define FF_DEBUG_PICT_INFO 1
905
#define FF_DEBUG_RC        2
906
#define FF_DEBUG_BITSTREAM 4
907
#define FF_DEBUG_MB_TYPE   8
908
#define FF_DEBUG_QP        16
909
#define FF_DEBUG_MV        32
910
#define FF_DEBUG_VIS_MV    0x00000040
911
#define FF_DEBUG_SKIP      0x00000080
912
#define FF_DEBUG_STARTCODE 0x00000100
913
#define FF_DEBUG_PTS       0x00000200
914
#define FF_DEBUG_ER        0x00000400
915
#define FF_DEBUG_MMCO      0x00000800
916
    
917
    /**
918
     * error.
919
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR
920
     * - decoding: unused
921
     */
922
    uint64_t error[4];
923
    
924
    /**
925
     * minimum MB quantizer.
926
     * - encoding: set by user.
927
     * - decoding: unused
928
     */
929
    int mb_qmin;
930

    
931
    /**
932
     * maximum MB quantizer.
933
     * - encoding: set by user.
934
     * - decoding: unused
935
     */
936
    int mb_qmax;
937
    
938
    /**
939
     * motion estimation compare function.
940
     * - encoding: set by user.
941
     * - decoding: unused
942
     */
943
    int me_cmp;
944
    /**
945
     * subpixel motion estimation compare function.
946
     * - encoding: set by user.
947
     * - decoding: unused
948
     */
949
    int me_sub_cmp;
950
    /**
951
     * macroblock compare function (not supported yet).
952
     * - encoding: set by user.
953
     * - decoding: unused
954
     */
955
    int mb_cmp;
956
#define FF_CMP_SAD  0
957
#define FF_CMP_SSE  1
958
#define FF_CMP_SATD 2
959
#define FF_CMP_DCT  3
960
#define FF_CMP_PSNR 4
961
#define FF_CMP_BIT  5
962
#define FF_CMP_RD   6
963
#define FF_CMP_ZERO 7
964
#define FF_CMP_CHROMA 256
965
    
966
    /**
967
     * ME diamond size & shape.
968
     * - encoding: set by user.
969
     * - decoding: unused
970
     */
971
    int dia_size;
972

    
973
    /**
974
     * amount of previous MV predictors (2a+1 x 2a+1 square).
975
     * - encoding: set by user.
976
     * - decoding: unused
977
     */
978
    int last_predictor_count;
979

    
980
    /**
981
     * pre pass for motion estimation.
982
     * - encoding: set by user.
983
     * - decoding: unused
984
     */
985
    int pre_me;
986

    
987
    /**
988
     * motion estimation pre pass compare function.
989
     * - encoding: set by user.
990
     * - decoding: unused
991
     */
992
    int me_pre_cmp;
993

    
994
    /**
995
     * ME pre pass diamond size & shape.
996
     * - encoding: set by user.
997
     * - decoding: unused
998
     */
999
    int pre_dia_size;
1000

    
1001
    /**
1002
     * subpel ME quality.
1003
     * - encoding: set by user.
1004
     * - decoding: unused
1005
     */
1006
    int me_subpel_quality;
1007

    
1008
    /**
1009
     * callback to negotiate the pixelFormat.
1010
     * @param fmt is the list of formats which are supported by the codec,
1011
     * its terminated by -1 as 0 is a valid format, the formats are ordered by quality
1012
     * the first is allways the native one
1013
     * @return the choosen format
1014
     * - encoding: unused
1015
     * - decoding: set by user, if not set then the native format will always be choosen
1016
     */
1017
    enum PixelFormat (*get_format)(struct AVCodecContext *s, enum PixelFormat * fmt);
1018

    
1019
    /**
1020
     * DTG active format information (additionnal aspect ratio
1021
     * information only used in DVB MPEG2 transport streams). 0 if
1022
     * not set.
1023
     * 
1024
     * - encoding: unused.
1025
     * - decoding: set by decoder 
1026
     */
1027
    int dtg_active_format;
1028
#define FF_DTG_AFD_SAME         8
1029
#define FF_DTG_AFD_4_3          9
1030
#define FF_DTG_AFD_16_9         10
1031
#define FF_DTG_AFD_14_9         11
1032
#define FF_DTG_AFD_4_3_SP_14_9  13
1033
#define FF_DTG_AFD_16_9_SP_14_9 14
1034
#define FF_DTG_AFD_SP_4_3       15
1035

    
1036
    /**
1037
     * Maximum motion estimation search range in subpel units.
1038
     * if 0 then no limit
1039
     * 
1040
     * - encoding: set by user.
1041
     * - decoding: unused.
1042
     */
1043
    int me_range;
1044

    
1045
    /**
1046
     * frame_rate_base.
1047
     * for variable fps this is 1
1048
     * - encoding: set by user.
1049
     * - decoding: set by lavc.
1050
     * @todo move this after frame_rate
1051
     */
1052

    
1053
    int frame_rate_base;
1054
    /**
1055
     * intra quantizer bias.
1056
     * - encoding: set by user.
1057
     * - decoding: unused
1058
     */
1059
    int intra_quant_bias;
1060
#define FF_DEFAULT_QUANT_BIAS 999999
1061
    
1062
    /**
1063
     * inter quantizer bias.
1064
     * - encoding: set by user.
1065
     * - decoding: unused
1066
     */
1067
    int inter_quant_bias;
1068
    
1069
} AVCodecContext;
1070

    
1071

    
1072
/**
1073
 * AVOption.
1074
 */
1075
typedef struct AVOption {
1076
    /** options' name */
1077
    const char *name; /* if name is NULL, it indicates a link to next */
1078
    /** short English text help or const struct AVOption* subpointer */
1079
    const char *help; //        const struct AVOption* sub;
1080
    /** offset to context structure where the parsed value should be stored */
1081
    int offset;
1082
    /** options' type */
1083
    int type;
1084
#define FF_OPT_TYPE_BOOL 1      ///< boolean - true,1,on  (or simply presence)
1085
#define FF_OPT_TYPE_DOUBLE 2    ///< double
1086
#define FF_OPT_TYPE_INT 3       ///< integer
1087
#define FF_OPT_TYPE_STRING 4    ///< string (finished with \0)
1088
#define FF_OPT_TYPE_MASK 0x1f        ///< mask for types - upper bits are various flags
1089
//#define FF_OPT_TYPE_EXPERT 0x20 // flag for expert option
1090
#define FF_OPT_TYPE_FLAG (FF_OPT_TYPE_BOOL | 0x40)
1091
#define FF_OPT_TYPE_RCOVERRIDE (FF_OPT_TYPE_STRING | 0x80)
1092
    /** min value  (min == max   ->  no limits) */
1093
    double min;
1094
    /** maximum value for double/int */
1095
    double max;
1096
    /** default boo [0,1]l/double/int value */
1097
    double defval;
1098
    /**
1099
     * default string value (with optional semicolon delimited extra option-list
1100
     * i.e.   option1;option2;option3
1101
     * defval might select other then first argument as default
1102
     */
1103
    const char *defstr;
1104
#define FF_OPT_MAX_DEPTH 10
1105
} AVOption;
1106

    
1107
/**
1108
 * Parse option(s) and sets fields in passed structure
1109
 * @param strct        structure where the parsed results will be written
1110
 * @param list  list with AVOptions
1111
 * @param opts        string with options for parsing
1112
 */
1113
int avoption_parse(void* strct, const AVOption* list, const char* opts);
1114

    
1115

    
1116
/**
1117
 * AVCodec.
1118
 */
1119
typedef struct AVCodec {
1120
    const char *name;
1121
    int type;
1122
    int id;
1123
    int priv_data_size;
1124
    int (*init)(AVCodecContext *);
1125
    int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
1126
    int (*close)(AVCodecContext *);
1127
    int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
1128
                  uint8_t *buf, int buf_size);
1129
    int capabilities;
1130
    const AVOption *options;
1131
    struct AVCodec *next;
1132
} AVCodec;
1133

    
1134
/**
1135
 * four components are given, that's all.
1136
 * the last component is alpha
1137
 */
1138
typedef struct AVPicture {
1139
    uint8_t *data[4];
1140
    int linesize[4];
1141
} AVPicture;
1142

    
1143
extern AVCodec ac3_encoder;
1144
extern AVCodec mp2_encoder;
1145
extern AVCodec mp3lame_encoder;
1146
extern AVCodec oggvorbis_encoder;
1147
extern AVCodec mpeg1video_encoder;
1148
extern AVCodec h263_encoder;
1149
extern AVCodec h263p_encoder;
1150
extern AVCodec rv10_encoder;
1151
extern AVCodec mjpeg_encoder;
1152
extern AVCodec mpeg4_encoder;
1153
extern AVCodec msmpeg4v1_encoder;
1154
extern AVCodec msmpeg4v2_encoder;
1155
extern AVCodec msmpeg4v3_encoder;
1156
extern AVCodec wmv1_encoder;
1157
extern AVCodec wmv2_encoder;
1158
extern AVCodec huffyuv_encoder;
1159
extern AVCodec h264_encoder;
1160

    
1161
extern AVCodec h263_decoder;
1162
extern AVCodec mpeg4_decoder;
1163
extern AVCodec msmpeg4v1_decoder;
1164
extern AVCodec msmpeg4v2_decoder;
1165
extern AVCodec msmpeg4v3_decoder;
1166
extern AVCodec wmv1_decoder;
1167
extern AVCodec wmv2_decoder;
1168
extern AVCodec mpeg_decoder;
1169
extern AVCodec h263i_decoder;
1170
extern AVCodec rv10_decoder;
1171
extern AVCodec svq1_decoder;
1172
extern AVCodec dvvideo_decoder;
1173
extern AVCodec dvaudio_decoder;
1174
extern AVCodec wmav1_decoder;
1175
extern AVCodec wmav2_decoder;
1176
extern AVCodec mjpeg_decoder;
1177
extern AVCodec mjpegb_decoder;
1178
extern AVCodec mp2_decoder;
1179
extern AVCodec mp3_decoder;
1180
extern AVCodec mace3_decoder;
1181
extern AVCodec mace6_decoder;
1182
extern AVCodec huffyuv_decoder;
1183
extern AVCodec oggvorbis_decoder;
1184
extern AVCodec cyuv_decoder;
1185
extern AVCodec h264_decoder;
1186

    
1187
/* pcm codecs */
1188
#define PCM_CODEC(id, name) \
1189
extern AVCodec name ## _decoder; \
1190
extern AVCodec name ## _encoder
1191

    
1192
PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
1193
PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
1194
PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
1195
PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
1196
PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
1197
PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
1198
PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
1199
PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
1200

    
1201
/* adpcm codecs */
1202

    
1203
PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
1204
PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
1205
PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
1206

    
1207
#undef PCM_CODEC
1208

    
1209
/* dummy raw video codec */
1210
extern AVCodec rawvideo_codec;
1211

    
1212
/* the following codecs use external GPL libs */
1213
extern AVCodec ac3_decoder;
1214

    
1215
/* resample.c */
1216

    
1217
struct ReSampleContext;
1218

    
1219
typedef struct ReSampleContext ReSampleContext;
1220

    
1221
ReSampleContext *audio_resample_init(int output_channels, int input_channels, 
1222
                                     int output_rate, int input_rate);
1223
int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
1224
void audio_resample_close(ReSampleContext *s);
1225

    
1226
/* YUV420 format is assumed ! */
1227

    
1228
struct ImgReSampleContext;
1229

    
1230
typedef struct ImgReSampleContext ImgReSampleContext;
1231

    
1232
ImgReSampleContext *img_resample_init(int output_width, int output_height,
1233
                                      int input_width, int input_height);
1234

    
1235
ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
1236
                                      int iwidth, int iheight,
1237
                                      int topBand, int bottomBand,
1238
                                      int leftBand, int rightBand);
1239

    
1240
void img_resample(ImgReSampleContext *s, 
1241
                  AVPicture *output, AVPicture *input);
1242

    
1243
void img_resample_close(ImgReSampleContext *s);
1244

    
1245
int avpicture_fill(AVPicture *picture, uint8_t *ptr,
1246
                   int pix_fmt, int width, int height);
1247
int avpicture_get_size(int pix_fmt, int width, int height);
1248
void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift);
1249
const char *avcodec_get_pix_fmt_name(int pix_fmt);
1250

    
1251
/* convert among pixel formats */
1252
int img_convert(AVPicture *dst, int dst_pix_fmt,
1253
                AVPicture *src, int pix_fmt, 
1254
                int width, int height);
1255

    
1256
/* deinterlace a picture */
1257
int avpicture_deinterlace(AVPicture *dst, AVPicture *src,
1258
                          int pix_fmt, int width, int height);
1259

    
1260
/* external high level API */
1261

    
1262
extern AVCodec *first_avcodec;
1263

    
1264
/* returns LIBAVCODEC_VERSION_INT constant */
1265
unsigned avcodec_version(void);
1266
/* returns LIBAVCODEC_BUILD constant */
1267
unsigned avcodec_build(void);
1268
void avcodec_init(void);
1269

    
1270
void register_avcodec(AVCodec *format);
1271
AVCodec *avcodec_find_encoder(enum CodecID id);
1272
AVCodec *avcodec_find_encoder_by_name(const char *name);
1273
AVCodec *avcodec_find_decoder(enum CodecID id);
1274
AVCodec *avcodec_find_decoder_by_name(const char *name);
1275
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
1276

    
1277
void avcodec_get_context_defaults(AVCodecContext *s);
1278
AVCodecContext *avcodec_alloc_context(void);
1279
AVFrame *avcodec_alloc_frame(void);
1280

    
1281
int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
1282
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
1283

    
1284
int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
1285
int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples, 
1286
                         int *frame_size_ptr,
1287
                         uint8_t *buf, int buf_size);
1288
int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture, 
1289
                         int *got_picture_ptr,
1290
                         uint8_t *buf, int buf_size);
1291
int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata, 
1292
                        int *data_size_ptr,
1293
                        uint8_t *buf, int buf_size);
1294
int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size, 
1295
                         const short *samples);
1296
int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size, 
1297
                         const AVFrame *pict);
1298

    
1299
int avcodec_close(AVCodecContext *avctx);
1300

    
1301
void avcodec_register_all(void);
1302

    
1303
void avcodec_flush_buffers(AVCodecContext *avctx);
1304

    
1305
/* misc usefull functions */
1306
/**
1307
 * reduce a fraction.
1308
 * this is usefull for framerate calculations
1309
 * @param max the maximum allowed for dst_nom & dst_den
1310
 * @return 1 if exact, 0 otherwise
1311
 */
1312
int av_reduce(int *dst_nom, int *dst_den, int64_t nom, int64_t den, int64_t max);
1313

    
1314
/**
1315
 * rescale a 64bit integer.
1316
 * a simple a*b/c isnt possible as it can overflow
1317
 */
1318
int64_t av_rescale(int64_t a, int b, int c);
1319

    
1320

    
1321
/**
1322
 * Interface for 0.5.0 version
1323
 *
1324
 * do not even think about it's usage for this moment
1325
 */
1326

    
1327
typedef struct {
1328
    /// compressed size used from given memory buffer
1329
    int size;
1330
    /// I/P/B frame type
1331
    int frame_type;
1332
} avc_enc_result_t;
1333

    
1334
/**
1335
 * Commands
1336
 * order can't be changed - once it was defined
1337
 */
1338
typedef enum {
1339
    // general commands
1340
    AVC_OPEN_BY_NAME = 0xACA000,
1341
    AVC_OPEN_BY_CODEC_ID,
1342
    AVC_OPEN_BY_FOURCC,
1343
    AVC_CLOSE,
1344

    
1345
    AVC_FLUSH,
1346
    // pin - struct { uint8_t* src, uint_t src_size }
1347
    // pout - struct { AVPicture* img, consumed_bytes,
1348
    AVC_DECODE,
1349
    // pin - struct { AVPicture* img, uint8_t* dest, uint_t dest_size }
1350
    // pout - uint_t used_from_dest_size
1351
    AVC_ENCODE, 
1352

    
1353
    // query/get video commands
1354
    AVC_GET_VERSION = 0xACB000,
1355
    AVC_GET_WIDTH,
1356
    AVC_GET_HEIGHT,
1357
    AVC_GET_DELAY,
1358
    AVC_GET_QUANT_TABLE,
1359
    // ...
1360

    
1361
    // query/get audio commands
1362
    AVC_GET_FRAME_SIZE = 0xABC000,
1363

    
1364
    // maybe define some simple structure which
1365
    // might be passed to the user - but they can't
1366
    // contain any codec specific parts and these
1367
    // calls are usualy necessary only few times
1368

    
1369
    // set video commands
1370
    AVC_SET_WIDTH = 0xACD000,
1371
    AVC_SET_HEIGHT,
1372

    
1373
    // set video encoding commands
1374
    AVC_SET_FRAME_RATE = 0xACD800,
1375
    AVC_SET_QUALITY,
1376
    AVC_SET_HURRY_UP,
1377

    
1378
    // set audio commands
1379
    AVC_SET_SAMPLE_RATE = 0xACE000,
1380
    AVC_SET_CHANNELS,
1381

    
1382
} avc_cmd_t;
1383

    
1384
/**
1385
 * \param handle  allocated private structure by libavcodec
1386
 *                for initialization pass NULL - will be returned pout
1387
 *                user is supposed to know nothing about its structure
1388
 * \param cmd     type of operation to be performed
1389
 * \param pint    input parameter
1390
 * \param pout    output parameter
1391
 *
1392
 * \returns  command status - eventually for query command it might return
1393
 * integer resulting value
1394
 */
1395
int avcodec(void* handle, avc_cmd_t cmd, void* pin, void* pout);
1396

    
1397
/* memory */
1398
void *av_malloc(unsigned int size);
1399
void *av_mallocz(unsigned int size);
1400
void *av_realloc(void *ptr, unsigned int size);
1401
void av_free(void *ptr);
1402
char *av_strdup(const char *s);
1403
void __av_freep(void **ptr);
1404
#define av_freep(p) __av_freep((void **)(p))
1405
void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size);
1406
/* for static data only */
1407
/* call av_free_static to release all staticaly allocated tables */
1408
void av_free_static(void);
1409
void *__av_mallocz_static(void** location, unsigned int size);
1410
#define av_mallocz_static(p, s) __av_mallocz_static((void **)(p), s)
1411

    
1412
#ifdef __cplusplus
1413
}
1414
#endif
1415

    
1416
#endif /* AVCODEC_H */