From bf406d90e426934f12d24a943499e7bf3b5025b6 Mon Sep 17 00:00:00 2001 From: Aurelien Jacobs Date: Sat, 19 May 2007 15:06:34 +0000 Subject: move MJpegDecodeContext declaration from mjpeg.h to mjpegdec.h Originally committed as revision 9074 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/mjpegdec.h | 68 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 68 insertions(+) (limited to 'libavcodec/mjpegdec.h') diff --git a/libavcodec/mjpegdec.h b/libavcodec/mjpegdec.h index baa7583587..178d2cb298 100644 --- a/libavcodec/mjpegdec.h +++ b/libavcodec/mjpegdec.h @@ -30,6 +30,74 @@ #define MJPEGDEC_H #include "avcodec.h" +#include "bitstream.h" +#include "dsputil.h" +#include "mpegvideo.h" + +#define MAX_COMPONENTS 4 + +typedef struct MJpegDecodeContext { + AVCodecContext *avctx; + GetBitContext gb; + + int start_code; /* current start code */ + int buffer_size; + uint8_t *buffer; + + int16_t quant_matrixes[4][64]; + VLC vlcs[2][4]; + int qscale[4]; ///< quantizer scale calculated from quant_matrixes + + int org_height; /* size given at codec init */ + int first_picture; /* true if decoding first picture */ + int interlaced; /* true if interlaced */ + int bottom_field; /* true if bottom field */ + int lossless; + int ls; + int progressive; + int rgb; + int rct; /* standard rct */ + int pegasus_rct; /* pegasus reversible colorspace transform */ + int bits; /* bits per component */ + + int maxval; + int near; ///< near lossless bound (si 0 for lossless) + int t1,t2,t3; + int reset; ///< context halfing intervall ?rename + + int width, height; + int mb_width, mb_height; + int nb_components; + int component_id[MAX_COMPONENTS]; + int h_count[MAX_COMPONENTS]; /* horizontal and vertical count for each component */ + int v_count[MAX_COMPONENTS]; + int comp_index[MAX_COMPONENTS]; + int dc_index[MAX_COMPONENTS]; + int ac_index[MAX_COMPONENTS]; + int nb_blocks[MAX_COMPONENTS]; + int h_scount[MAX_COMPONENTS]; + int v_scount[MAX_COMPONENTS]; + int h_max, v_max; /* maximum h and v counts */ + int quant_index[4]; /* quant table index for each component */ + int last_dc[MAX_COMPONENTS]; /* last DEQUANTIZED dc (XXX: am I right to do that ?) */ + AVFrame picture; /* picture structure */ + int linesize[MAX_COMPONENTS]; ///< linesize << interlaced + int8_t *qscale_table; + DECLARE_ALIGNED_8(DCTELEM, block[64]); + ScanTable scantable; + DSPContext dsp; + + int restart_interval; + int restart_count; + + int buggy_avid; + int cs_itu601; + int interlace_polarity; + + int mjpb_skiptosod; + + int cur_scan; /* current scan, used by JPEG-LS */ +} MJpegDecodeContext; int ff_mjpeg_decode_init(AVCodecContext *avctx); int ff_mjpeg_decode_end(AVCodecContext *avctx); -- cgit v1.2.3