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Diffstat (limited to 'media/libtheora/lib/decint.h')
| -rw-r--r-- | media/libtheora/lib/decint.h | 186 |
1 files changed, 0 insertions, 186 deletions
diff --git a/media/libtheora/lib/decint.h b/media/libtheora/lib/decint.h deleted file mode 100644 index bd6522273..000000000 --- a/media/libtheora/lib/decint.h +++ /dev/null @@ -1,186 +0,0 @@ -/******************************************************************** - * * - * THIS FILE IS PART OF THE OggTheora SOFTWARE CODEC SOURCE CODE. * - * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS * - * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE * - * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. * - * * - * THE Theora SOURCE CODE IS COPYRIGHT (C) 2002-2009 * - * by the Xiph.Org Foundation and contributors http://www.xiph.org/ * - * * - ******************************************************************** - - function: - last mod: $Id: decint.h 17457 2010-09-24 02:05:49Z tterribe $ - - ********************************************************************/ - -#include <limits.h> -#if !defined(_decint_H) -# define _decint_H (1) -# include "theora/theoradec.h" -# include "state.h" -# include "bitpack.h" -# include "huffdec.h" -# include "dequant.h" - -typedef struct th_setup_info oc_setup_info; -typedef struct oc_dec_opt_vtable oc_dec_opt_vtable; -typedef struct oc_dec_pipeline_state oc_dec_pipeline_state; -typedef struct th_dec_ctx oc_dec_ctx; - - - -/*Decoder-specific accelerated functions.*/ -# if defined(OC_C64X_ASM) -# include "c64x/c64xdec.h" -# endif - -# if !defined(oc_dec_accel_init) -# define oc_dec_accel_init oc_dec_accel_init_c -# endif -# if defined(OC_DEC_USE_VTABLE) -# if !defined(oc_dec_dc_unpredict_mcu_plane) -# define oc_dec_dc_unpredict_mcu_plane(_dec,_pipe,_pli) \ - ((*(_dec)->opt_vtable.dc_unpredict_mcu_plane)(_dec,_pipe,_pli)) -# endif -# else -# if !defined(oc_dec_dc_unpredict_mcu_plane) -# define oc_dec_dc_unpredict_mcu_plane oc_dec_dc_unpredict_mcu_plane_c -# endif -# endif - - - -/*Constants for the packet-in state machine specific to the decoder.*/ - -/*Next packet to read: Data packet.*/ -#define OC_PACKET_DATA (0) - - - -struct th_setup_info{ - /*The Huffman codes.*/ - ogg_int16_t *huff_tables[TH_NHUFFMAN_TABLES]; - /*The quantization parameters.*/ - th_quant_info qinfo; -}; - - - -/*Decoder specific functions with accelerated variants.*/ -struct oc_dec_opt_vtable{ - void (*dc_unpredict_mcu_plane)(oc_dec_ctx *_dec, - oc_dec_pipeline_state *_pipe,int _pli); -}; - - - -struct oc_dec_pipeline_state{ - /*Decoded DCT coefficients. - These are placed here instead of on the stack so that they can persist - between blocks, which makes clearing them back to zero much faster when - only a few non-zero coefficients were decoded. - It requires at least 65 elements because the zig-zag index array uses the - 65th element as a dumping ground for out-of-range indices to protect us - from buffer overflow. - We make it fully twice as large so that the second half can serve as the - reconstruction buffer, which saves passing another parameter to all the - acceleration functios. - It also solves problems with 16-byte alignment for NEON on ARM. - gcc (as of 4.2.1) only seems to be able to give stack variables 8-byte - alignment, and silently produces incorrect results if you ask for 16. - Finally, keeping it off the stack means there's less likely to be a data - hazard beween the NEON co-processor and the regular ARM core, which avoids - unnecessary stalls.*/ - OC_ALIGN16(ogg_int16_t dct_coeffs[128]); - OC_ALIGN16(signed char bounding_values[256]); - ptrdiff_t ti[3][64]; - ptrdiff_t ebi[3][64]; - ptrdiff_t eob_runs[3][64]; - const ptrdiff_t *coded_fragis[3]; - const ptrdiff_t *uncoded_fragis[3]; - ptrdiff_t ncoded_fragis[3]; - ptrdiff_t nuncoded_fragis[3]; - const ogg_uint16_t *dequant[3][3][2]; - int fragy0[3]; - int fragy_end[3]; - int pred_last[3][4]; - int mcu_nvfrags; - int loop_filter; - int pp_level; -}; - - -struct th_dec_ctx{ - /*Shared encoder/decoder state.*/ - oc_theora_state state; - /*Whether or not packets are ready to be emitted. - This takes on negative values while there are remaining header packets to - be emitted, reaches 0 when the codec is ready for input, and goes to 1 - when a frame has been processed and a data packet is ready.*/ - int packet_state; - /*Buffer in which to assemble packets.*/ - oc_pack_buf opb; - /*Huffman decode trees.*/ - ogg_int16_t *huff_tables[TH_NHUFFMAN_TABLES]; - /*The index of the first token in each plane for each coefficient.*/ - ptrdiff_t ti0[3][64]; - /*The number of outstanding EOB runs at the start of each coefficient in each - plane.*/ - ptrdiff_t eob_runs[3][64]; - /*The DCT token lists.*/ - unsigned char *dct_tokens; - /*The extra bits associated with DCT tokens.*/ - unsigned char *extra_bits; - /*The number of dct tokens unpacked so far.*/ - int dct_tokens_count; - /*The out-of-loop post-processing level.*/ - int pp_level; - /*The DC scale used for out-of-loop deblocking.*/ - int pp_dc_scale[64]; - /*The sharpen modifier used for out-of-loop deringing.*/ - int pp_sharp_mod[64]; - /*The DC quantization index of each block.*/ - unsigned char *dc_qis; - /*The variance of each block.*/ - int *variances; - /*The storage for the post-processed frame buffer.*/ - unsigned char *pp_frame_data; - /*Whether or not the post-processsed frame buffer has space for chroma.*/ - int pp_frame_state; - /*The buffer used for the post-processed frame. - Note that this is _not_ guaranteed to have the same strides and offsets as - the reference frame buffers.*/ - th_ycbcr_buffer pp_frame_buf; - /*The striped decode callback function.*/ - th_stripe_callback stripe_cb; - oc_dec_pipeline_state pipe; -# if defined(OC_DEC_USE_VTABLE) - /*Table for decoder acceleration functions.*/ - oc_dec_opt_vtable opt_vtable; -# endif -# if defined(HAVE_CAIRO) - /*Output metrics for debugging.*/ - int telemetry; - int telemetry_mbmode; - int telemetry_mv; - int telemetry_qi; - int telemetry_bits; - int telemetry_frame_bytes; - int telemetry_coding_bytes; - int telemetry_mode_bytes; - int telemetry_mv_bytes; - int telemetry_qi_bytes; - int telemetry_dc_bytes; - unsigned char *telemetry_frame_data; -# endif -}; - -/*Default pure-C implementations of decoder-specific accelerated functions.*/ -void oc_dec_accel_init_c(oc_dec_ctx *_dec); - -void oc_dec_dc_unpredict_mcu_plane_c(oc_dec_ctx *_dec, - oc_dec_pipeline_state *_pipe,int _pli); - -#endif |