diff options
author | Diego Biurrun <diego@biurrun.de> | 2015-03-29 14:44:23 +0200 |
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committer | Diego Biurrun <diego@biurrun.de> | 2015-03-30 17:49:05 +0200 |
commit | 23944d29a22a2cd602753b3705f73011c3bf0b18 (patch) | |
tree | d176951f06dccc0f97a400e4ecc8186fdc3f1bc2 /libavcodec/ivi_common.h | |
parent | 7d3183d3a4e800ab7a7fa24f49968a1b1bcc0161 (diff) |
indeo: Give Indeo4/5 shared code a more consistent name
Diffstat (limited to 'libavcodec/ivi_common.h')
-rw-r--r-- | libavcodec/ivi_common.h | 343 |
1 files changed, 0 insertions, 343 deletions
diff --git a/libavcodec/ivi_common.h b/libavcodec/ivi_common.h deleted file mode 100644 index e2cc593b61..0000000000 --- a/libavcodec/ivi_common.h +++ /dev/null @@ -1,343 +0,0 @@ -/* - * common functions for Indeo Video Interactive codecs (Indeo4 and Indeo5) - * - * Copyright (c) 2009 Maxim Poliakovski - * - * This file is part of Libav. - * - * Libav is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * Libav is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with Libav; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -/** - * @file - * This file contains structures and macros shared by both Indeo4 and - * Indeo5 decoders. - */ - -#ifndef AVCODEC_IVI_COMMON_H -#define AVCODEC_IVI_COMMON_H - -#include "avcodec.h" -#include "get_bits.h" -#include <stdint.h> - -/** - * Indeo 4 frame types. - */ -enum { - IVI4_FRAMETYPE_INTRA = 0, - IVI4_FRAMETYPE_INTRA1 = 1, ///< intra frame with slightly different bitstream coding - IVI4_FRAMETYPE_INTER = 2, ///< non-droppable P-frame - IVI4_FRAMETYPE_BIDIR = 3, ///< bidirectional frame - IVI4_FRAMETYPE_INTER_NOREF = 4, ///< droppable P-frame - IVI4_FRAMETYPE_NULL_FIRST = 5, ///< empty frame with no data - IVI4_FRAMETYPE_NULL_LAST = 6 ///< empty frame with no data -}; - -#define IVI_VLC_BITS 13 ///< max number of bits of the ivi's huffman codes -#define IVI4_STREAM_ANALYSER 0 -#define IVI5_IS_PROTECTED 0x20 - -/** - * huffman codebook descriptor - */ -typedef struct IVIHuffDesc { - int32_t num_rows; - uint8_t xbits[16]; -} IVIHuffDesc; - -/** - * macroblock/block huffman table descriptor - */ -typedef struct IVIHuffTab { - int32_t tab_sel; /// index of one of the predefined tables - /// or "7" for custom one - VLC *tab; /// pointer to the table associated with tab_sel - - /// the following are used only when tab_sel == 7 - IVIHuffDesc cust_desc; /// custom Huffman codebook descriptor - VLC cust_tab; /// vlc table for custom codebook -} IVIHuffTab; - -enum { - IVI_MB_HUFF = 0, /// Huffman table is used for coding macroblocks - IVI_BLK_HUFF = 1 /// Huffman table is used for coding blocks -}; - - -/** - * Common scan patterns (defined in ivi_common.c) - */ -extern const uint8_t ff_ivi_vertical_scan_8x8[64]; -extern const uint8_t ff_ivi_horizontal_scan_8x8[64]; -extern const uint8_t ff_ivi_direct_scan_4x4[16]; - - -/** - * Declare inverse transform function types - */ -typedef void (InvTransformPtr)(const int32_t *in, int16_t *out, uint32_t pitch, const uint8_t *flags); -typedef void (DCTransformPtr) (const int32_t *in, int16_t *out, uint32_t pitch, int blk_size); - - -/** - * run-value (RLE) table descriptor - */ -typedef struct RVMapDesc { - uint8_t eob_sym; ///< end of block symbol - uint8_t esc_sym; ///< escape symbol - uint8_t runtab[256]; - int8_t valtab[256]; -} RVMapDesc; - -extern const RVMapDesc ff_ivi_rvmap_tabs[9]; - - -/** - * information for Indeo macroblock (16x16, 8x8 or 4x4) - */ -typedef struct IVIMbInfo { - int16_t xpos; - int16_t ypos; - uint32_t buf_offs; ///< address in the output buffer for this mb - uint8_t type; ///< macroblock type: 0 - INTRA, 1 - INTER - uint8_t cbp; ///< coded block pattern - int8_t q_delta; ///< quant delta - int8_t mv_x; ///< motion vector (x component) - int8_t mv_y; ///< motion vector (y component) - int8_t b_mv_x; ///< second motion vector (x component) - int8_t b_mv_y; ///< second motion vector (y component) -} IVIMbInfo; - - -/** - * information for Indeo tile - */ -typedef struct IVITile { - int xpos; - int ypos; - int width; - int height; - int mb_size; - int is_empty; ///< = 1 if this tile doesn't contain any data - int data_size; ///< size of the data in bytes - int num_MBs; ///< number of macroblocks in this tile - IVIMbInfo *mbs; ///< array of macroblock descriptors - IVIMbInfo *ref_mbs; ///< ptr to the macroblock descriptors of the reference tile -} IVITile; - - -/** - * information for Indeo wavelet band - */ -typedef struct IVIBandDesc { - int plane; ///< plane number this band belongs to - int band_num; ///< band number - int width; - int height; - int aheight; ///< aligned band height - const uint8_t *data_ptr; ///< ptr to the first byte of the band data - int data_size; ///< size of the band data - int16_t *buf; ///< pointer to the output buffer for this band - int16_t *ref_buf; ///< pointer to the reference frame buffer (for motion compensation) - int16_t *b_ref_buf; ///< pointer to the second reference frame buffer (for motion compensation) - int16_t *bufs[4]; ///< array of pointers to the band buffers - int pitch; ///< pitch associated with the buffers above - int is_empty; ///< = 1 if this band doesn't contain any data - int mb_size; ///< macroblock size - int blk_size; ///< block size - int is_halfpel; ///< precision of the motion compensation: 0 - fullpel, 1 - halfpel - int inherit_mv; ///< tells if motion vector is inherited from reference macroblock - int inherit_qdelta; ///< tells if quantiser delta is inherited from reference macroblock - int qdelta_present; ///< tells if Qdelta signal is present in the bitstream (Indeo5 only) - int quant_mat; ///< dequant matrix index - int glob_quant; ///< quant base for this band - const uint8_t *scan; ///< ptr to the scan pattern - - IVIHuffTab blk_vlc; ///< vlc table for decoding block data - - int num_corr; ///< number of correction entries - uint8_t corr[61*2]; ///< rvmap correction pairs - int rvmap_sel; ///< rvmap table selector - RVMapDesc *rv_map; ///< ptr to the RLE table for this band - int num_tiles; ///< number of tiles in this band - IVITile *tiles; ///< array of tile descriptors - InvTransformPtr *inv_transform; - int transform_size; - DCTransformPtr *dc_transform; - int is_2d_trans; ///< 1 indicates that the two-dimensional inverse transform is used - int32_t checksum; ///< for debug purposes - int checksum_present; - int bufsize; ///< band buffer size in bytes - const uint16_t *intra_base; ///< quantization matrix for intra blocks - const uint16_t *inter_base; ///< quantization matrix for inter blocks - const uint8_t *intra_scale; ///< quantization coefficient for intra blocks - const uint8_t *inter_scale; ///< quantization coefficient for inter blocks -} IVIBandDesc; - - -/** - * color plane (luma or chroma) information - */ -typedef struct IVIPlaneDesc { - uint16_t width; - uint16_t height; - uint8_t num_bands; ///< number of bands this plane subdivided into - IVIBandDesc *bands; ///< array of band descriptors -} IVIPlaneDesc; - - -typedef struct IVIPicConfig { - uint16_t pic_width; - uint16_t pic_height; - uint16_t chroma_width; - uint16_t chroma_height; - uint16_t tile_width; - uint16_t tile_height; - uint8_t luma_bands; - uint8_t chroma_bands; -} IVIPicConfig; - -typedef struct IVI45DecContext { - GetBitContext gb; - RVMapDesc rvmap_tabs[9]; ///< local corrected copy of the static rvmap tables - - uint32_t frame_num; - int frame_type; - int prev_frame_type; ///< frame type of the previous frame - uint32_t data_size; ///< size of the frame data in bytes from picture header - int is_scalable; - int transp_status; ///< transparency mode status: 1 - enabled - const uint8_t *frame_data; ///< input frame data pointer - int inter_scal; ///< signals a sequence of scalable inter frames - uint32_t frame_size; ///< frame size in bytes - uint32_t pic_hdr_size; ///< picture header size in bytes - uint8_t frame_flags; - uint16_t checksum; ///< frame checksum - - IVIPicConfig pic_conf; - IVIPlaneDesc planes[3]; ///< color planes - - int buf_switch; ///< used to switch between three buffers - int dst_buf; ///< buffer index for the currently decoded frame - int ref_buf; ///< inter frame reference buffer index - int ref2_buf; ///< temporal storage for switching buffers - int b_ref_buf; ///< second reference frame buffer index - - IVIHuffTab mb_vlc; ///< current macroblock table descriptor - IVIHuffTab blk_vlc; ///< current block table descriptor - - uint8_t rvmap_sel; - uint8_t in_imf; - uint8_t in_q; ///< flag for explicitly stored quantiser delta - uint8_t pic_glob_quant; - uint8_t unknown1; - - uint16_t gop_hdr_size; - uint8_t gop_flags; - uint32_t lock_word; - -#if IVI4_STREAM_ANALYSER - uint8_t has_b_frames; - uint8_t has_transp; - uint8_t uses_tiling; - uint8_t uses_haar; - uint8_t uses_fullpel; -#endif - - int (*decode_pic_hdr) (struct IVI45DecContext *ctx, AVCodecContext *avctx); - int (*decode_band_hdr) (struct IVI45DecContext *ctx, IVIBandDesc *band, AVCodecContext *avctx); - int (*decode_mb_info) (struct IVI45DecContext *ctx, IVIBandDesc *band, IVITile *tile, AVCodecContext *avctx); - void (*switch_buffers) (struct IVI45DecContext *ctx); - int (*is_nonnull_frame)(struct IVI45DecContext *ctx); - - int gop_invalid; - - int is_indeo4; - - AVFrame *p_frame; - int got_p_frame; -} IVI45DecContext; - -/** compare some properties of two pictures */ -static inline int ivi_pic_config_cmp(IVIPicConfig *str1, IVIPicConfig *str2) -{ - return str1->pic_width != str2->pic_width || str1->pic_height != str2->pic_height || - str1->chroma_width != str2->chroma_width || str1->chroma_height != str2->chroma_height || - str1->tile_width != str2->tile_width || str1->tile_height != str2->tile_height || - str1->luma_bands != str2->luma_bands || str1->chroma_bands != str2->chroma_bands; -} - -/** calculate number of tiles in a stride */ -#define IVI_NUM_TILES(stride, tile_size) (((stride) + (tile_size) - 1) / (tile_size)) - -/** calculate number of macroblocks in a tile */ -#define IVI_MBs_PER_TILE(tile_width, tile_height, mb_size) \ - ((((tile_width) + (mb_size) - 1) / (mb_size)) * (((tile_height) + (mb_size) - 1) / (mb_size))) - -/** convert unsigned values into signed ones (the sign is in the LSB) */ -#define IVI_TOSIGNED(val) (-(((val) >> 1) ^ -((val) & 1))) - -/** scale motion vector */ -static inline int ivi_scale_mv(int mv, int mv_scale) -{ - return (mv + (mv > 0) + (mv_scale - 1)) >> mv_scale; -} - -/** - * Initialize static codes used for macroblock and block decoding. - */ -void ff_ivi_init_static_vlc(void); - -/** - * Decode a huffman codebook descriptor from the bitstream - * and select specified huffman table. - * - * @param[in,out] gb the GetBit context - * @param[in] desc_coded flag signalling if table descriptor was coded - * @param[in] which_tab codebook purpose (IVI_MB_HUFF or IVI_BLK_HUFF) - * @param[out] huff_tab pointer to the descriptor of the selected table - * @param[in] avctx AVCodecContext pointer - * @return zero on success, negative value otherwise - */ -int ff_ivi_dec_huff_desc(GetBitContext *gb, int desc_coded, int which_tab, - IVIHuffTab *huff_tab, AVCodecContext *avctx); - -/** - * Initialize planes (prepares descriptors, allocates buffers etc). - * - * @param[in,out] planes pointer to the array of the plane descriptors - * @param[in] cfg pointer to the ivi_pic_config structure describing picture layout - * @param[in] is_indeo4 flag signalling if it is Indeo 4 or not - * @return result code: 0 - OK - */ -int ff_ivi_init_planes(IVIPlaneDesc *planes, const IVIPicConfig *cfg, - int is_indeo4); - -/** - * Initialize tile and macroblock descriptors. - * - * @param[in,out] planes pointer to the array of the plane descriptors - * @param[in] tile_width tile width - * @param[in] tile_height tile height - * @return result code: 0 - OK - */ -int ff_ivi_init_tiles(IVIPlaneDesc *planes, int tile_width, int tile_height); - -int ff_ivi_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, - AVPacket *avpkt); -int ff_ivi_decode_close(AVCodecContext *avctx); - -#endif /* AVCODEC_IVI_COMMON_H */ |