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https://github.com/FFmpeg/FFmpeg.git
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Indeo 4 decoder
Signed-off-by: Kostya Shishkov <kostya.shishkov@gmail.com>
This commit is contained in:
Kostya Shishkov
parent
bd96be6e27
commit
adfe0c942e
@ -111,6 +111,7 @@ easier to use. The changes are:
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- v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
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- OpenMG Audio muxer
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- Simple segmenting muxer
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- Indeo 4 decoder
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version 0.7:
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@ -491,6 +491,7 @@ following image formats are supported:
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@item Intel H.263 @tab @tab X
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@item Intel Indeo 2 @tab @tab X
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@item Intel Indeo 3 @tab @tab X
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@item Intel Indeo 4 @tab @tab X
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@item Intel Indeo 5 @tab @tab X
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@item Interplay C93 @tab @tab X
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@tab Used in the game Cyberia from Interplay.
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@ -191,6 +191,7 @@ OBJS-$(CONFIG_IFF_ILBM_DECODER) += iff.o
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OBJS-$(CONFIG_IMC_DECODER) += imc.o
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OBJS-$(CONFIG_INDEO2_DECODER) += indeo2.o
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OBJS-$(CONFIG_INDEO3_DECODER) += indeo3.o
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OBJS-$(CONFIG_INDEO4_DECODER) += indeo4.o ivi_common.o ivi_dsp.o
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OBJS-$(CONFIG_INDEO5_DECODER) += indeo5.o ivi_common.o ivi_dsp.o
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OBJS-$(CONFIG_INTERPLAY_DPCM_DECODER) += dpcm.o
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OBJS-$(CONFIG_INTERPLAY_VIDEO_DECODER) += interplayvideo.o
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@ -128,6 +128,7 @@ void avcodec_register_all(void)
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REGISTER_DECODER (IFF_ILBM, iff_ilbm);
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REGISTER_DECODER (INDEO2, indeo2);
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REGISTER_DECODER (INDEO3, indeo3);
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REGISTER_DECODER (INDEO4, indeo4);
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REGISTER_DECODER (INDEO5, indeo5);
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REGISTER_DECODER (INTERPLAY_VIDEO, interplay_video);
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REGISTER_ENCDEC (JPEGLS, jpegls);
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823
libavcodec/indeo4.c
Normal file
823
libavcodec/indeo4.c
Normal file
@ -0,0 +1,823 @@
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/*
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* Indeo Video Interactive v4 compatible decoder
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* Copyright (c) 2009-2011 Maxim Poliakovski
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*
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* This file is part of Libav.
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*
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* Libav is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* Libav is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with Libav; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* Indeo Video Interactive version 4 decoder
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*
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* Indeo 4 data is usually transported within .avi or .mov files.
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* Known FOURCCs: 'IV41'
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*/
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#define BITSTREAM_READER_LE
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#include "avcodec.h"
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#include "get_bits.h"
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#include "dsputil.h"
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#include "ivi_dsp.h"
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#include "ivi_common.h"
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#include "indeo4data.h"
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#define IVI4_STREAM_ANALYSER 0
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#define IVI4_DEBUG_CHECKSUM 0
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/**
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* Indeo 4 frame types.
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*/
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enum {
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FRAMETYPE_INTRA = 0,
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FRAMETYPE_BIDIR1 = 1, ///< bidirectional frame
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FRAMETYPE_INTER = 2, ///< non-droppable P-frame
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FRAMETYPE_BIDIR = 3, ///< bidirectional frame
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FRAMETYPE_INTER_NOREF = 4, ///< droppable P-frame
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FRAMETYPE_NULL_FIRST = 5, ///< empty frame with no data
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FRAMETYPE_NULL_LAST = 6 ///< empty frame with no data
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};
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#define IVI4_PIC_SIZE_ESC 7
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typedef struct {
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GetBitContext gb;
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AVFrame frame;
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RVMapDesc rvmap_tabs[9]; ///< local corrected copy of the static rvmap tables
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uint32_t frame_num;
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int frame_type;
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int prev_frame_type; ///< frame type of the previous frame
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uint32_t data_size; ///< size of the frame data in bytes from picture header
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int is_scalable;
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int transp_status; ///< transparency mode status: 1 - enabled
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IVIPicConfig pic_conf;
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IVIPlaneDesc planes[3]; ///< color planes
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int buf_switch; ///< used to switch between three buffers
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int dst_buf; ///< buffer index for the currently decoded frame
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int ref_buf; ///< inter frame reference buffer index
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IVIHuffTab mb_vlc; ///< current macroblock table descriptor
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IVIHuffTab blk_vlc; ///< current block table descriptor
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uint16_t checksum; ///< frame checksum
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uint8_t rvmap_sel;
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uint8_t in_imf;
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uint8_t in_q; ///< flag for explicitly stored quantiser delta
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uint8_t pic_glob_quant;
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uint8_t unknown1;
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#if IVI4_STREAM_ANALYSER
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uint8_t has_b_frames;
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uint8_t has_transp;
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uint8_t uses_tiling;
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uint8_t uses_haar;
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uint8_t uses_fullpel;
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#endif
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} IVI4DecContext;
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struct {
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InvTransformPtr *inv_trans;
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DCTransformPtr *dc_trans;
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int is_2d_trans;
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} transforms[18] = {
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{ ff_ivi_inverse_haar_8x8, ff_ivi_dc_haar_2d, 1 },
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{ NULL, NULL, 0 }, /* inverse Haar 8x1 */
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{ NULL, NULL, 0 }, /* inverse Haar 1x8 */
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{ ff_ivi_put_pixels_8x8, ff_ivi_put_dc_pixel_8x8, 1 },
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{ ff_ivi_inverse_slant_8x8, ff_ivi_dc_slant_2d, 1 },
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{ ff_ivi_row_slant8, ff_ivi_dc_row_slant, 1 },
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{ ff_ivi_col_slant8, ff_ivi_dc_col_slant, 1 },
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{ NULL, NULL, 0 }, /* inverse DCT 8x8 */
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{ NULL, NULL, 0 }, /* inverse DCT 8x1 */
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{ NULL, NULL, 0 }, /* inverse DCT 1x8 */
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{ NULL, NULL, 0 }, /* inverse Haar 4x4 */
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{ ff_ivi_inverse_slant_4x4, ff_ivi_dc_slant_2d, 1 },
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{ NULL, NULL, 0 }, /* no transform 4x4 */
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{ NULL, NULL, 0 }, /* inverse Haar 1x4 */
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{ NULL, NULL, 0 }, /* inverse Haar 4x1 */
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{ NULL, NULL, 0 }, /* inverse slant 1x4 */
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{ NULL, NULL, 0 }, /* inverse slant 4x1 */
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{ NULL, NULL, 0 }, /* inverse DCT 4x4 */
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};
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/**
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* Decode subdivision of a plane.
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* This is a simplified version that checks for two supported subdivisions:
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* - 1 wavelet band per plane, size factor 1:1, code pattern: 3
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* - 4 wavelet bands per plane, size factor 1:4, code pattern: 2,3,3,3,3
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* Anything else is either unsupported or corrupt.
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*
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* @param[in,out] gb the GetBit context
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* @return number of wavelet bands or 0 on error
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*/
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static int decode_plane_subdivision(GetBitContext *gb)
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{
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int i;
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switch (get_bits(gb, 2)) {
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case 3:
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return 1;
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case 2:
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for (i = 0; i < 4; i++)
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if (get_bits(gb, 2) != 3)
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return 0;
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return 4;
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default:
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return 0;
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}
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}
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static inline int scale_tile_size(int def_size, int size_factor)
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{
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return (size_factor == 15 ? def_size : (size_factor + 1) << 5);
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}
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/**
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* Decode Indeo 4 picture header.
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*
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* @param[in,out] ctx pointer to the decoder context
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* @param[in] avctx pointer to the AVCodecContext
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* @return result code: 0 = OK, negative number = error
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*/
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static int decode_pic_hdr(IVI4DecContext *ctx, AVCodecContext *avctx)
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{
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int pic_size_indx, val, i, p;
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IVIPicConfig pic_conf;
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if (get_bits(&ctx->gb, 18) != 0x3FFF8) {
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av_log(avctx, AV_LOG_ERROR, "Invalid picture start code!\n");
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return AVERROR_INVALIDDATA;
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}
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ctx->prev_frame_type = ctx->frame_type;
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ctx->frame_type = get_bits(&ctx->gb, 3);
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if (ctx->frame_type == 7) {
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av_log(avctx, AV_LOG_ERROR, "Invalid frame type: %d\n", ctx->frame_type);
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return AVERROR_INVALIDDATA;
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}
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#if IVI4_STREAM_ANALYSER
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if ( ctx->frame_type == FRAMETYPE_BIDIR1
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|| ctx->frame_type == FRAMETYPE_BIDIR)
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ctx->has_b_frames = 1;
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#endif
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ctx->transp_status = get_bits1(&ctx->gb);
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#if IVI4_STREAM_ANALYSER
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if (ctx->transp_status) {
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ctx->has_transp = 1;
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}
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#endif
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/* unknown bit: Mac decoder ignores this bit, XANIM returns error */
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if (get_bits1(&ctx->gb)) {
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av_log(avctx, AV_LOG_ERROR, "Sync bit is set!\n");
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return AVERROR_INVALIDDATA;
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}
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ctx->data_size = get_bits1(&ctx->gb) ? get_bits(&ctx->gb, 24) : 0;
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/* null frames don't contain anything else so we just return */
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if (ctx->frame_type >= FRAMETYPE_NULL_FIRST) {
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av_dlog(avctx, "Null frame encountered!\n");
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return 0;
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}
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/* Check key lock status. If enabled - ignore lock word. */
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/* Usually we have to prompt the user for the password, but */
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/* we don't do that because Indeo 4 videos can be decoded anyway */
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if (get_bits1(&ctx->gb)) {
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skip_bits_long(&ctx->gb, 32);
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av_dlog(avctx, "Password-protected clip!\n");
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}
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pic_size_indx = get_bits(&ctx->gb, 3);
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if (pic_size_indx == IVI4_PIC_SIZE_ESC) {
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pic_conf.pic_height = get_bits(&ctx->gb, 16);
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pic_conf.pic_width = get_bits(&ctx->gb, 16);
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} else {
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pic_conf.pic_height = ivi4_common_pic_sizes[pic_size_indx * 2 + 1];
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pic_conf.pic_width = ivi4_common_pic_sizes[pic_size_indx * 2 ];
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}
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/* Decode tile dimensions. */
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if (get_bits1(&ctx->gb)) {
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pic_conf.tile_height = scale_tile_size(pic_conf.pic_height, get_bits(&ctx->gb, 4));
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pic_conf.tile_width = scale_tile_size(pic_conf.pic_width, get_bits(&ctx->gb, 4));
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#if IVI4_STREAM_ANALYSER
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ctx->uses_tiling = 1;
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#endif
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} else {
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pic_conf.tile_height = pic_conf.pic_height;
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pic_conf.tile_width = pic_conf.pic_width;
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}
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/* Decode chroma subsampling. We support only 4:4 aka YVU9. */
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if (get_bits(&ctx->gb, 2)) {
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av_log(avctx, AV_LOG_ERROR, "Only YVU9 picture format is supported!\n");
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return AVERROR_INVALIDDATA;
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}
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pic_conf.chroma_height = (pic_conf.pic_height + 3) >> 2;
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pic_conf.chroma_width = (pic_conf.pic_width + 3) >> 2;
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/* decode subdivision of the planes */
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pic_conf.luma_bands = decode_plane_subdivision(&ctx->gb);
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if (pic_conf.luma_bands)
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pic_conf.chroma_bands = decode_plane_subdivision(&ctx->gb);
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ctx->is_scalable = pic_conf.luma_bands != 1 || pic_conf.chroma_bands != 1;
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if (ctx->is_scalable && (pic_conf.luma_bands != 4 || pic_conf.chroma_bands != 1)) {
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av_log(avctx, AV_LOG_ERROR, "Scalability: unsupported subdivision! Luma bands: %d, chroma bands: %d\n",
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pic_conf.luma_bands, pic_conf.chroma_bands);
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return AVERROR_INVALIDDATA;
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}
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/* check if picture layout was changed and reallocate buffers */
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if (ivi_pic_config_cmp(&pic_conf, &ctx->pic_conf)) {
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if (ff_ivi_init_planes(ctx->planes, &pic_conf)) {
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av_log(avctx, AV_LOG_ERROR, "Couldn't reallocate color planes!\n");
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return AVERROR(ENOMEM);
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}
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ctx->pic_conf = pic_conf;
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/* set default macroblock/block dimensions */
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for (p = 0; p <= 2; p++) {
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for (i = 0; i < (!p ? pic_conf.luma_bands : pic_conf.chroma_bands); i++) {
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ctx->planes[p].bands[i].mb_size = !p ? (!ctx->is_scalable ? 16 : 8) : 4;
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ctx->planes[p].bands[i].blk_size = !p ? 8 : 4;
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}
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}
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if (ff_ivi_init_tiles(ctx->planes, ctx->pic_conf.tile_width,
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ctx->pic_conf.tile_height)) {
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av_log(avctx, AV_LOG_ERROR,
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"Couldn't reallocate internal structures!\n");
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return AVERROR(ENOMEM);
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}
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}
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ctx->frame_num = get_bits1(&ctx->gb) ? get_bits(&ctx->gb, 20) : 0;
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/* skip decTimeEst field if present */
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if (get_bits1(&ctx->gb))
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skip_bits(&ctx->gb, 8);
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/* decode macroblock and block huffman codebooks */
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if (ff_ivi_dec_huff_desc(&ctx->gb, get_bits1(&ctx->gb), IVI_MB_HUFF, &ctx->mb_vlc, avctx) ||
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ff_ivi_dec_huff_desc(&ctx->gb, get_bits1(&ctx->gb), IVI_BLK_HUFF, &ctx->blk_vlc, avctx))
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return AVERROR_INVALIDDATA;
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ctx->rvmap_sel = get_bits1(&ctx->gb) ? get_bits(&ctx->gb, 3) : 8;
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ctx->in_imf = get_bits1(&ctx->gb);
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ctx->in_q = get_bits1(&ctx->gb);
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ctx->pic_glob_quant = get_bits(&ctx->gb, 5);
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/* TODO: ignore this parameter if unused */
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ctx->unknown1 = get_bits1(&ctx->gb) ? get_bits(&ctx->gb, 3) : 0;
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ctx->checksum = get_bits1(&ctx->gb) ? get_bits(&ctx->gb, 16) : 0;
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/* skip picture header extension if any */
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while (get_bits1(&ctx->gb)) {
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av_dlog(avctx, "Pic hdr extension encountered!\n");
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val = get_bits(&ctx->gb, 8);
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}
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if (get_bits1(&ctx->gb)) {
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av_log(avctx, AV_LOG_ERROR, "Bad blocks bits encountered!\n");
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}
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align_get_bits(&ctx->gb);
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return 0;
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}
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/**
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* Decode Indeo 4 band header.
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*
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* @param[in,out] ctx pointer to the decoder context
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* @param[in,out] band pointer to the band descriptor
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* @param[in] avctx pointer to the AVCodecContext
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* @return result code: 0 = OK, negative number = error
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*/
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static int decode_band_hdr(IVI4DecContext *ctx, IVIBandDesc *band,
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AVCodecContext *avctx)
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{
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int plane, band_num, hdr_size, indx, transform_id, scan_indx;
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int i;
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plane = get_bits(&ctx->gb, 2);
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band_num = get_bits(&ctx->gb, 4);
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if (band->plane != plane || band->band_num != band_num) {
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av_log(avctx, AV_LOG_ERROR, "Invalid band header sequence!\n");
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return AVERROR_INVALIDDATA;
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}
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band->is_empty = get_bits1(&ctx->gb);
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if (!band->is_empty) {
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hdr_size = get_bits1(&ctx->gb) ? get_bits(&ctx->gb, 16) : 4;
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band->is_halfpel = get_bits(&ctx->gb, 2);
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if (band->is_halfpel >= 2) {
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av_log(avctx, AV_LOG_ERROR, "Invalid/unsupported mv resolution: %d!\n",
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band->is_halfpel);
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return AVERROR_INVALIDDATA;
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}
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#if IVI4_STREAM_ANALYSER
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if (!band->is_halfpel)
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ctx->uses_fullpel = 1;
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#endif
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band->checksum_present = get_bits1(&ctx->gb);
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if (band->checksum_present)
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band->checksum = get_bits(&ctx->gb, 16);
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indx = get_bits(&ctx->gb, 2);
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if (indx == 3) {
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av_log(avctx, AV_LOG_ERROR, "Invalid block size!\n");
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return AVERROR_INVALIDDATA;
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}
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band->mb_size = 16 >> indx;
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band->blk_size = 8 >> (indx >> 1);
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band->inherit_mv = get_bits1(&ctx->gb);
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band->inherit_qdelta = get_bits1(&ctx->gb);
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band->glob_quant = get_bits(&ctx->gb, 5);
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if (!get_bits1(&ctx->gb) || ctx->frame_type == FRAMETYPE_INTRA) {
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transform_id = get_bits(&ctx->gb, 5);
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if (!transforms[transform_id].inv_trans) {
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av_log_ask_for_sample(avctx, "Unimplemented transform: %d!\n", transform_id);
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return AVERROR_PATCHWELCOME;
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}
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if ((transform_id >= 7 && transform_id <= 9) ||
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transform_id == 17) {
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av_log_ask_for_sample(avctx, "DCT transform not supported yet!\n");
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return AVERROR_PATCHWELCOME;
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}
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#if IVI4_STREAM_ANALYSER
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if ((transform_id >= 0 && transform_id <= 2) || transform_id == 10)
|
||||
ctx->uses_haar = 1;
|
||||
#endif
|
||||
|
||||
band->inv_transform = transforms[transform_id].inv_trans;
|
||||
band->dc_transform = transforms[transform_id].dc_trans;
|
||||
band->is_2d_trans = transforms[transform_id].is_2d_trans;
|
||||
|
||||
scan_indx = get_bits(&ctx->gb, 4);
|
||||
if (scan_indx == 15) {
|
||||
av_log(avctx, AV_LOG_ERROR, "Custom scan pattern encountered!\n");
|
||||
return AVERROR_INVALIDDATA;
|
||||
}
|
||||
band->scan = scan_index_to_tab[scan_indx];
|
||||
|
||||
band->quant_mat = get_bits(&ctx->gb, 5);
|
||||
if (band->quant_mat == 31) {
|
||||
av_log(avctx, AV_LOG_ERROR, "Custom quant matrix encountered!\n");
|
||||
return AVERROR_INVALIDDATA;
|
||||
}
|
||||
}
|
||||
|
||||
/* decode block huffman codebook */
|
||||
if (ff_ivi_dec_huff_desc(&ctx->gb, get_bits1(&ctx->gb), IVI_BLK_HUFF,
|
||||
&band->blk_vlc, avctx))
|
||||
return AVERROR_INVALIDDATA;
|
||||
|
||||
/* select appropriate rvmap table for this band */
|
||||
band->rvmap_sel = get_bits1(&ctx->gb) ? get_bits(&ctx->gb, 3) : 8;
|
||||
|
||||
/* decode rvmap probability corrections if any */
|
||||
band->num_corr = 0; /* there is no corrections */
|
||||
if (get_bits1(&ctx->gb)) {
|
||||
band->num_corr = get_bits(&ctx->gb, 8); /* get number of correction pairs */
|
||||
if (band->num_corr > 61) {
|
||||
av_log(avctx, AV_LOG_ERROR, "Too many corrections: %d\n",
|
||||
band->num_corr);
|
||||
return AVERROR_INVALIDDATA;
|
||||
}
|
||||
|
||||
/* read correction pairs */
|
||||
for (i = 0; i < band->num_corr * 2; i++)
|
||||
band->corr[i] = get_bits(&ctx->gb, 8);
|
||||
}
|
||||
}
|
||||
|
||||
if (band->blk_size == 8) {
|
||||
band->intra_base = &ivi4_quant_8x8_intra[quant_index_to_tab[band->quant_mat]][0];
|
||||
band->inter_base = &ivi4_quant_8x8_inter[quant_index_to_tab[band->quant_mat]][0];
|
||||
} else {
|
||||
band->intra_base = &ivi4_quant_4x4_intra[quant_index_to_tab[band->quant_mat]][0];
|
||||
band->inter_base = &ivi4_quant_4x4_inter[quant_index_to_tab[band->quant_mat]][0];
|
||||
}
|
||||
|
||||
/* Indeo 4 doesn't use scale tables */
|
||||
band->intra_scale = NULL;
|
||||
band->inter_scale = NULL;
|
||||
|
||||
align_get_bits(&ctx->gb);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Decode information (block type, cbp, quant delta, motion vector)
|
||||
* for all macroblocks in the current tile.
|
||||
*
|
||||
* @param[in,out] ctx pointer to the decoder context
|
||||
* @param[in,out] band pointer to the band descriptor
|
||||
* @param[in,out] tile pointer to the tile descriptor
|
||||
* @param[in] avctx pointer to the AVCodecContext
|
||||
* @return result code: 0 = OK, negative number = error
|
||||
*/
|
||||
static int decode_mb_info(IVI4DecContext *ctx, IVIBandDesc *band,
|
||||
IVITile *tile, AVCodecContext *avctx)
|
||||
{
|
||||
int x, y, mv_x, mv_y, mv_delta, offs, mb_offset, blks_per_mb,
|
||||
mv_scale, mb_type_bits;
|
||||
IVIMbInfo *mb, *ref_mb;
|
||||
int row_offset = band->mb_size * band->pitch;
|
||||
|
||||
mb = tile->mbs;
|
||||
ref_mb = tile->ref_mbs;
|
||||
offs = tile->ypos * band->pitch + tile->xpos;
|
||||
|
||||
blks_per_mb = band->mb_size != band->blk_size ? 4 : 1;
|
||||
mb_type_bits = ctx->frame_type == FRAMETYPE_BIDIR ? 2 : 1;
|
||||
|
||||
/* scale factor for motion vectors */
|
||||
mv_scale = (ctx->planes[0].bands[0].mb_size >> 3) - (band->mb_size >> 3);
|
||||
mv_x = mv_y = 0;
|
||||
|
||||
for (y = tile->ypos; y < tile->ypos + tile->height; y += band->mb_size) {
|
||||
mb_offset = offs;
|
||||
|
||||
for (x = tile->xpos; x < tile->xpos + tile->width; x += band->mb_size) {
|
||||
mb->xpos = x;
|
||||
mb->ypos = y;
|
||||
mb->buf_offs = mb_offset;
|
||||
|
||||
if (get_bits1(&ctx->gb)) {
|
||||
if (ctx->frame_type == FRAMETYPE_INTRA) {
|
||||
av_log(avctx, AV_LOG_ERROR, "Empty macroblock in an INTRA picture!\n");
|
||||
return AVERROR_INVALIDDATA;
|
||||
}
|
||||
mb->type = 1; /* empty macroblocks are always INTER */
|
||||
mb->cbp = 0; /* all blocks are empty */
|
||||
|
||||
mb->q_delta = 0;
|
||||
if (!band->plane && !band->band_num && ctx->in_q) {
|
||||
mb->q_delta = get_vlc2(&ctx->gb, ctx->mb_vlc.tab->table,
|
||||
IVI_VLC_BITS, 1);
|
||||
mb->q_delta = IVI_TOSIGNED(mb->q_delta);
|
||||
}
|
||||
|
||||
mb->mv_x = mb->mv_y = 0; /* no motion vector coded */
|
||||
if (band->inherit_mv) {
|
||||
/* motion vector inheritance */
|
||||
if (mv_scale) {
|
||||
mb->mv_x = ivi_scale_mv(ref_mb->mv_x, mv_scale);
|
||||
mb->mv_y = ivi_scale_mv(ref_mb->mv_y, mv_scale);
|
||||
} else {
|
||||
mb->mv_x = ref_mb->mv_x;
|
||||
mb->mv_y = ref_mb->mv_y;
|
||||
}
|
||||
}
|
||||
} else {
|
||||
if (band->inherit_mv) {
|
||||
mb->type = ref_mb->type; /* copy mb_type from corresponding reference mb */
|
||||
} else if (ctx->frame_type == FRAMETYPE_INTRA) {
|
||||
mb->type = 0; /* mb_type is always INTRA for intra-frames */
|
||||
} else {
|
||||
mb->type = get_bits(&ctx->gb, mb_type_bits);
|
||||
}
|
||||
|
||||
mb->cbp = get_bits(&ctx->gb, blks_per_mb);
|
||||
|
||||
mb->q_delta = 0;
|
||||
if (band->inherit_qdelta) {
|
||||
if (ref_mb) mb->q_delta = ref_mb->q_delta;
|
||||
} else if (mb->cbp || (!band->plane && !band->band_num &&
|
||||
ctx->in_q)) {
|
||||
mb->q_delta = get_vlc2(&ctx->gb, ctx->mb_vlc.tab->table,
|
||||
IVI_VLC_BITS, 1);
|
||||
mb->q_delta = IVI_TOSIGNED(mb->q_delta);
|
||||
}
|
||||
|
||||
if (!mb->type) {
|
||||
mb->mv_x = mb->mv_y = 0; /* there is no motion vector in intra-macroblocks */
|
||||
} else {
|
||||
if (band->inherit_mv) {
|
||||
/* motion vector inheritance */
|
||||
if (mv_scale) {
|
||||
mb->mv_x = ivi_scale_mv(ref_mb->mv_x, mv_scale);
|
||||
mb->mv_y = ivi_scale_mv(ref_mb->mv_y, mv_scale);
|
||||
} else {
|
||||
mb->mv_x = ref_mb->mv_x;
|
||||
mb->mv_y = ref_mb->mv_y;
|
||||
}
|
||||
} else {
|
||||
/* decode motion vector deltas */
|
||||
mv_delta = get_vlc2(&ctx->gb, ctx->mb_vlc.tab->table,
|
||||
IVI_VLC_BITS, 1);
|
||||
mv_y += IVI_TOSIGNED(mv_delta);
|
||||
mv_delta = get_vlc2(&ctx->gb, ctx->mb_vlc.tab->table,
|
||||
IVI_VLC_BITS, 1);
|
||||
mv_x += IVI_TOSIGNED(mv_delta);
|
||||
mb->mv_x = mv_x;
|
||||
mb->mv_y = mv_y;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
mb++;
|
||||
if (ref_mb)
|
||||
ref_mb++;
|
||||
mb_offset += band->mb_size;
|
||||
}
|
||||
|
||||
offs += row_offset;
|
||||
}
|
||||
|
||||
align_get_bits(&ctx->gb);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Decode an Indeo 4 band.
|
||||
*
|
||||
* @param[in,out] ctx pointer to the decoder context
|
||||
* @param[in,out] band pointer to the band descriptor
|
||||
* @param[in] avctx pointer to the AVCodecContext
|
||||
* @return result code: 0 = OK, negative number = error
|
||||
*/
|
||||
static int decode_band(IVI4DecContext *ctx, int plane_num,
|
||||
IVIBandDesc *band, AVCodecContext *avctx)
|
||||
{
|
||||
int result, i, t, pos, idx1, idx2;
|
||||
IVITile *tile;
|
||||
|
||||
band->buf = band->bufs[ctx->dst_buf];
|
||||
band->ref_buf = band->bufs[ctx->ref_buf];
|
||||
|
||||
result = decode_band_hdr(ctx, band, avctx);
|
||||
if (result) {
|
||||
av_log(avctx, AV_LOG_ERROR, "Error decoding band header\n");
|
||||
return result;
|
||||
}
|
||||
|
||||
if (band->is_empty) {
|
||||
av_log(avctx, AV_LOG_ERROR, "Empty band encountered!\n");
|
||||
return AVERROR_INVALIDDATA;
|
||||
}
|
||||
|
||||
band->rv_map = &ctx->rvmap_tabs[band->rvmap_sel];
|
||||
|
||||
/* apply corrections to the selected rvmap table if present */
|
||||
for (i = 0; i < band->num_corr; i++) {
|
||||
idx1 = band->corr[i * 2];
|
||||
idx2 = band->corr[i * 2 + 1];
|
||||
FFSWAP(uint8_t, band->rv_map->runtab[idx1], band->rv_map->runtab[idx2]);
|
||||
FFSWAP(int16_t, band->rv_map->valtab[idx1], band->rv_map->valtab[idx2]);
|
||||
}
|
||||
|
||||
pos = get_bits_count(&ctx->gb);
|
||||
|
||||
for (t = 0; t < band->num_tiles; t++) {
|
||||
tile = &band->tiles[t];
|
||||
|
||||
tile->is_empty = get_bits1(&ctx->gb);
|
||||
if (tile->is_empty) {
|
||||
ff_ivi_process_empty_tile(avctx, band, tile,
|
||||
(ctx->planes[0].bands[0].mb_size >> 3) - (band->mb_size >> 3));
|
||||
av_dlog(avctx, "Empty tile encountered!\n");
|
||||
} else {
|
||||
tile->data_size = ff_ivi_dec_tile_data_size(&ctx->gb);
|
||||
if (!tile->data_size) {
|
||||
av_log(avctx, AV_LOG_ERROR, "Tile data size is zero!\n");
|
||||
return AVERROR_INVALIDDATA;
|
||||
}
|
||||
|
||||
result = decode_mb_info(ctx, band, tile, avctx);
|
||||
if (result < 0)
|
||||
break;
|
||||
|
||||
result = ff_ivi_decode_blocks(&ctx->gb, band, tile);
|
||||
if (result < 0 || ((get_bits_count(&ctx->gb) - pos) >> 3) != tile->data_size) {
|
||||
av_log(avctx, AV_LOG_ERROR, "Corrupted tile data encountered!\n");
|
||||
break;
|
||||
}
|
||||
|
||||
pos += tile->data_size << 3; // skip to next tile
|
||||
}
|
||||
}
|
||||
|
||||
/* restore the selected rvmap table by applying its corrections in reverse order */
|
||||
for (i = band->num_corr - 1; i >= 0; i--) {
|
||||
idx1 = band->corr[i * 2];
|
||||
idx2 = band->corr[i * 2 + 1];
|
||||
FFSWAP(uint8_t, band->rv_map->runtab[idx1], band->rv_map->runtab[idx2]);
|
||||
FFSWAP(int16_t, band->rv_map->valtab[idx1], band->rv_map->valtab[idx2]);
|
||||
}
|
||||
|
||||
#if defined(DEBUG) && IVI4_DEBUG_CHECKSUM
|
||||
if (band->checksum_present) {
|
||||
uint16_t chksum = ivi_calc_band_checksum(band);
|
||||
if (chksum != band->checksum) {
|
||||
av_log(avctx, AV_LOG_ERROR,
|
||||
"Band checksum mismatch! Plane %d, band %d, received: %x, calculated: %x\n",
|
||||
band->plane, band->band_num, band->checksum, chksum);
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
align_get_bits(&ctx->gb);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
static av_cold int decode_init(AVCodecContext *avctx)
|
||||
{
|
||||
IVI4DecContext *ctx = avctx->priv_data;
|
||||
|
||||
ff_ivi_init_static_vlc();
|
||||
|
||||
/* copy rvmap tables in our context so we can apply changes to them */
|
||||
memcpy(ctx->rvmap_tabs, ff_ivi_rvmap_tabs, sizeof(ff_ivi_rvmap_tabs));
|
||||
|
||||
/* Force allocation of the internal buffers */
|
||||
/* during picture header decoding. */
|
||||
ctx->pic_conf.pic_width = 0;
|
||||
ctx->pic_conf.pic_height = 0;
|
||||
|
||||
avctx->pix_fmt = PIX_FMT_YUV410P;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Rearrange decoding and reference buffers.
|
||||
*
|
||||
* @param[in,out] ctx pointer to the decoder context
|
||||
*/
|
||||
static void switch_buffers(IVI4DecContext *ctx)
|
||||
{
|
||||
switch (ctx->prev_frame_type) {
|
||||
case FRAMETYPE_INTRA:
|
||||
case FRAMETYPE_INTER:
|
||||
ctx->buf_switch ^= 1;
|
||||
ctx->dst_buf = ctx->buf_switch;
|
||||
ctx->ref_buf = ctx->buf_switch ^ 1;
|
||||
break;
|
||||
case FRAMETYPE_INTER_NOREF:
|
||||
break;
|
||||
}
|
||||
|
||||
switch (ctx->frame_type) {
|
||||
case FRAMETYPE_INTRA:
|
||||
ctx->buf_switch = 0;
|
||||
/* FALLTHROUGH */
|
||||
case FRAMETYPE_INTER:
|
||||
ctx->dst_buf = ctx->buf_switch;
|
||||
ctx->ref_buf = ctx->buf_switch ^ 1;
|
||||
break;
|
||||
case FRAMETYPE_INTER_NOREF:
|
||||
case FRAMETYPE_NULL_FIRST:
|
||||
case FRAMETYPE_NULL_LAST:
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
|
||||
AVPacket *avpkt)
|
||||
{
|
||||
IVI4DecContext *ctx = avctx->priv_data;
|
||||
const uint8_t *buf = avpkt->data;
|
||||
int buf_size = avpkt->size;
|
||||
int result, p, b;
|
||||
|
||||
init_get_bits(&ctx->gb, buf, buf_size * 8);
|
||||
|
||||
result = decode_pic_hdr(ctx, avctx);
|
||||
if (result) {
|
||||
av_log(avctx, AV_LOG_ERROR, "Error decoding picture header\n");
|
||||
return result;
|
||||
}
|
||||
|
||||
switch_buffers(ctx);
|
||||
|
||||
if (ctx->frame_type < FRAMETYPE_NULL_FIRST) {
|
||||
for (p = 0; p < 3; p++) {
|
||||
for (b = 0; b < ctx->planes[p].num_bands; b++) {
|
||||
result = decode_band(ctx, p, &ctx->planes[p].bands[b], avctx);
|
||||
if (result) {
|
||||
av_log(avctx, AV_LOG_ERROR,
|
||||
"Error decoding band: %d, plane: %d\n", b, p);
|
||||
return result;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* If the bidirectional mode is enabled, next I and the following P frame will */
|
||||
/* be sent together. Unfortunately the approach below seems to be the only way */
|
||||
/* to handle the B-frames mode. That's exactly the same Intel decoders do. */
|
||||
if (ctx->frame_type == FRAMETYPE_INTRA) {
|
||||
while (get_bits(&ctx->gb, 8)); // skip version string
|
||||
skip_bits_long(&ctx->gb, 64); // skip padding, TODO: implement correct 8-bytes alignment
|
||||
if (get_bits_left(&ctx->gb) > 18 && show_bits(&ctx->gb, 18) == 0x3FFF8)
|
||||
av_log(avctx, AV_LOG_ERROR, "Buffer contains IP frames!\n");
|
||||
}
|
||||
|
||||
if (ctx->frame.data[0])
|
||||
avctx->release_buffer(avctx, &ctx->frame);
|
||||
|
||||
ctx->frame.reference = 0;
|
||||
if ((result = avctx->get_buffer(avctx, &ctx->frame)) < 0) {
|
||||
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
|
||||
return result;
|
||||
}
|
||||
|
||||
if (ctx->is_scalable) {
|
||||
ff_ivi_recompose_haar(&ctx->planes[0], ctx->frame.data[0], ctx->frame.linesize[0], 4);
|
||||
} else {
|
||||
ff_ivi_output_plane(&ctx->planes[0], ctx->frame.data[0], ctx->frame.linesize[0]);
|
||||
}
|
||||
|
||||
ff_ivi_output_plane(&ctx->planes[2], ctx->frame.data[1], ctx->frame.linesize[1]);
|
||||
ff_ivi_output_plane(&ctx->planes[1], ctx->frame.data[2], ctx->frame.linesize[2]);
|
||||
|
||||
*data_size = sizeof(AVFrame);
|
||||
*(AVFrame*)data = ctx->frame;
|
||||
|
||||
return buf_size;
|
||||
}
|
||||
|
||||
|
||||
static av_cold int decode_close(AVCodecContext *avctx)
|
||||
{
|
||||
IVI4DecContext *ctx = avctx->priv_data;
|
||||
|
||||
ff_ivi_free_buffers(&ctx->planes[0]);
|
||||
|
||||
if (ctx->frame.data[0])
|
||||
avctx->release_buffer(avctx, &ctx->frame);
|
||||
|
||||
#if IVI4_STREAM_ANALYSER
|
||||
if (ctx->is_scalable)
|
||||
av_log(avctx, AV_LOG_ERROR, "This video uses scalability mode!\n");
|
||||
if (ctx->uses_tiling)
|
||||
av_log(avctx, AV_LOG_ERROR, "This video uses local decoding!\n");
|
||||
if (ctx->has_b_frames)
|
||||
av_log(avctx, AV_LOG_ERROR, "This video contains B-frames!\n");
|
||||
if (ctx->has_transp)
|
||||
av_log(avctx, AV_LOG_ERROR, "Transparency mode is enabled!\n");
|
||||
if (ctx->uses_haar)
|
||||
av_log(avctx, AV_LOG_ERROR, "This video uses Haar transform!\n");
|
||||
if (ctx->uses_fullpel)
|
||||
av_log(avctx, AV_LOG_ERROR, "This video uses fullpel motion vectors!\n");
|
||||
#endif
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
AVCodec ff_indeo4_decoder = {
|
||||
.name = "indeo4",
|
||||
.type = AVMEDIA_TYPE_VIDEO,
|
||||
.id = CODEC_ID_INDEO4,
|
||||
.priv_data_size = sizeof(IVI4DecContext),
|
||||
.init = decode_init,
|
||||
.close = decode_close,
|
||||
.decode = decode_frame,
|
||||
.long_name = NULL_IF_CONFIG_SMALL("Intel Indeo Video Interactive 4"),
|
||||
};
|
||||
350
libavcodec/indeo4data.h
Normal file
350
libavcodec/indeo4data.h
Normal file
@ -0,0 +1,350 @@
|
||||
/*
|
||||
* Indeo Video Interactive 4 compatible decoder
|
||||
* Copyright (c) 2009-2010 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 data needed for the Indeo 4 decoder.
|
||||
*/
|
||||
|
||||
#ifndef AVCODEC_INDEO4DATA_H
|
||||
#define AVCODEC_INDEO4DATA_H
|
||||
|
||||
#include <stdint.h>
|
||||
#include "dsputil.h"
|
||||
#include "ivi_common.h"
|
||||
|
||||
/**
|
||||
* standard picture dimensions
|
||||
*/
|
||||
static const uint16_t ivi4_common_pic_sizes[14] = {
|
||||
640, 480, 320, 240, 160, 120, 704, 480, 352, 240, 352, 288, 176, 144
|
||||
};
|
||||
|
||||
/**
|
||||
* Indeo 4 8x8 scan (zigzag) patterns
|
||||
*/
|
||||
static const uint8_t ivi4_alternate_scan_8x8[64] = {
|
||||
0, 8, 1, 9, 16, 24, 2, 3, 17, 25, 10, 11, 32, 40, 48, 56,
|
||||
4, 5, 6, 7, 33, 41, 49, 57, 18, 19, 26, 27, 12, 13, 14, 15,
|
||||
34, 35, 43, 42, 50, 51, 59, 58, 20, 21, 22, 23, 31, 30, 29, 28,
|
||||
36, 37, 38, 39, 47, 46, 45, 44, 52, 53, 54, 55, 63, 62, 61, 60
|
||||
};
|
||||
|
||||
static const uint8_t ivi4_alternate_scan_4x4[16] = {
|
||||
0, 1, 4, 5, 8, 12, 2, 3, 9, 13, 6, 7, 10, 11, 14, 15
|
||||
};
|
||||
|
||||
static const uint8_t ivi4_vertical_scan_4x4[16] = {
|
||||
0, 4, 8, 12, 1, 5, 9, 13, 2, 6, 10, 14, 3, 7, 11, 15
|
||||
};
|
||||
|
||||
static const uint8_t ivi4_horizontal_scan_4x4[16] = {
|
||||
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
|
||||
};
|
||||
|
||||
static const uint8_t *scan_index_to_tab[15] = {
|
||||
// for 8x8 transforms
|
||||
ff_zigzag_direct,
|
||||
ivi4_alternate_scan_8x8,
|
||||
ff_ivi_horizontal_scan_8x8,
|
||||
ff_ivi_vertical_scan_8x8,
|
||||
ff_zigzag_direct,
|
||||
|
||||
// for 4x4 transforms
|
||||
ff_ivi_direct_scan_4x4,
|
||||
ivi4_alternate_scan_4x4,
|
||||
ivi4_vertical_scan_4x4,
|
||||
ivi4_horizontal_scan_4x4,
|
||||
ff_ivi_direct_scan_4x4,
|
||||
|
||||
// TODO: check if those are needed
|
||||
ff_ivi_horizontal_scan_8x8,
|
||||
ff_ivi_horizontal_scan_8x8,
|
||||
ff_ivi_horizontal_scan_8x8,
|
||||
ff_ivi_horizontal_scan_8x8,
|
||||
ff_ivi_horizontal_scan_8x8
|
||||
};
|
||||
|
||||
/**
|
||||
* Indeo 4 dequant tables
|
||||
*/
|
||||
static uint16_t ivi4_quant_8x8_intra[9][64] = {
|
||||
{
|
||||
43, 342, 385, 470, 555, 555, 598, 726,
|
||||
342, 342, 470, 513, 555, 598, 726, 769,
|
||||
385, 470, 555, 555, 598, 726, 726, 811,
|
||||
470, 470, 555, 555, 598, 726, 769, 854,
|
||||
470, 555, 555, 598, 683, 726, 854, 1025,
|
||||
555, 555, 598, 683, 726, 854, 1025, 1153,
|
||||
555, 555, 598, 726, 811, 982, 1195, 1451,
|
||||
555, 598, 726, 811, 982, 1195, 1451, 1793
|
||||
},
|
||||
{
|
||||
86, 1195, 2390, 2390, 4865, 4865, 4865, 4865,
|
||||
1195, 1195, 2390, 2390, 4865, 4865, 4865, 4865,
|
||||
2390, 2390, 4865, 4865, 6827, 6827, 6827, 6827,
|
||||
2390, 2390, 4865, 4865, 6827, 6827, 6827, 6827,
|
||||
4865, 4865, 6827, 6827, 6827, 6827, 6827, 6827,
|
||||
4865, 4865, 6827, 6827, 6827, 6827, 6827, 6827,
|
||||
4865, 4865, 6827, 6827, 6827, 6827, 6827, 6827,
|
||||
4865, 4865, 6827, 6827, 6827, 6827, 6827, 6827
|
||||
},
|
||||
{
|
||||
235, 1067, 1195, 1323, 1451, 1579, 1707, 1835,
|
||||
235, 1067, 1195, 1323, 1451, 1579, 1707, 1835,
|
||||
235, 1067, 1195, 1323, 1451, 1579, 1707, 1835,
|
||||
235, 1067, 1195, 1323, 1451, 1579, 1707, 1835,
|
||||
235, 1067, 1195, 1323, 1451, 1579, 1707, 1835,
|
||||
235, 1067, 1195, 1323, 1451, 1579, 1707, 1835,
|
||||
235, 1067, 1195, 1323, 1451, 1579, 1707, 1835,
|
||||
235, 1067, 1195, 1323, 1451, 1579, 1707, 1835
|
||||
},
|
||||
{
|
||||
1707, 1707, 3414, 3414, 3414, 3414, 3414, 3414,
|
||||
1707, 1707, 3414, 3414, 3414, 3414, 3414, 3414,
|
||||
1707, 1707, 3414, 3414, 3414, 3414, 3414, 3414,
|
||||
1707, 1707, 3414, 3414, 3414, 3414, 3414, 3414,
|
||||
1707, 1707, 3414, 3414, 3414, 3414, 3414, 3414,
|
||||
1707, 1707, 3414, 3414, 3414, 3414, 3414, 3414,
|
||||
1707, 1707, 3414, 3414, 3414, 3414, 3414, 3414,
|
||||
1707, 1707, 3414, 3414, 3414, 3414, 3414, 3414
|
||||
},
|
||||
{
|
||||
897, 897, 897, 897, 897, 897, 897, 897,
|
||||
1067, 1067, 1067, 1067, 1067, 1067, 1067, 1067,
|
||||
1238, 1238, 1238, 1238, 1238, 1238, 1238, 1238,
|
||||
1409, 1409, 1409, 1409, 1409, 1409, 1409, 1409,
|
||||
1579, 1579, 1579, 1579, 1579, 1579, 1579, 1579,
|
||||
1750, 1750, 1750, 1750, 1750, 1750, 1750, 1750,
|
||||
1921, 1921, 1921, 1921, 1921, 1921, 1921, 1921,
|
||||
2091, 2091, 2091, 2091, 2091, 2091, 2091, 2091
|
||||
},
|
||||
{
|
||||
1707, 1707, 1707, 1707, 1707, 1707, 1707, 1707,
|
||||
1707, 1707, 1707, 1707, 1707, 1707, 1707, 1707,
|
||||
3414, 3414, 3414, 3414, 3414, 3414, 3414, 3414,
|
||||
3414, 3414, 3414, 3414, 3414, 3414, 3414, 3414,
|
||||
3414, 3414, 3414, 3414, 3414, 3414, 3414, 3414,
|
||||
3414, 3414, 3414, 3414, 3414, 3414, 3414, 3414,
|
||||
3414, 3414, 3414, 3414, 3414, 3414, 3414, 3414,
|
||||
3414, 3414, 3414, 3414, 3414, 3414, 3414, 3414
|
||||
},
|
||||
{
|
||||
2390, 2390, 2390, 2390, 2390, 2390, 2390, 2390,
|
||||
2390, 2390, 2390, 2390, 2390, 2390, 2390, 2390,
|
||||
2390, 2390, 2390, 2390, 2390, 2390, 2390, 2390,
|
||||
2390, 2390, 2390, 2390, 2390, 2390, 2390, 2390,
|
||||
2390, 2390, 2390, 2390, 2390, 2390, 2390, 2390,
|
||||
2390, 2390, 2390, 2390, 2390, 2390, 2390, 2390,
|
||||
2390, 2390, 2390, 2390, 2390, 2390, 2390, 2390,
|
||||
2390, 2390, 2390, 2390, 2390, 2390, 2390, 2390
|
||||
},
|
||||
{
|
||||
22, 171, 214, 257, 257, 299, 299, 342,
|
||||
171, 171, 257, 257, 299, 299, 342, 385,
|
||||
214, 257, 257, 299, 299, 342, 342, 385,
|
||||
257, 257, 257, 299, 299, 342, 385, 427,
|
||||
257, 257, 299, 299, 342, 385, 427, 513,
|
||||
257, 299, 299, 342, 385, 427, 513, 598,
|
||||
299, 299, 299, 385, 385, 470, 598, 726,
|
||||
299, 299, 385, 385, 470, 598, 726, 897
|
||||
},
|
||||
{
|
||||
86, 598, 1195, 1195, 2390, 2390, 2390, 2390,
|
||||
598, 598, 1195, 1195, 2390, 2390, 2390, 2390,
|
||||
1195, 1195, 2390, 2390, 3414, 3414, 3414, 3414,
|
||||
1195, 1195, 2390, 2390, 3414, 3414, 3414, 3414,
|
||||
2390, 2390, 3414, 3414, 3414, 3414, 3414, 3414,
|
||||
2390, 2390, 3414, 3414, 3414, 3414, 3414, 3414,
|
||||
2390, 2390, 3414, 3414, 3414, 3414, 3414, 3414,
|
||||
2390, 2390, 3414, 3414, 3414, 3414, 3414, 3414
|
||||
}
|
||||
};
|
||||
|
||||
static uint16_t ivi4_quant_8x8_inter[9][64] = {
|
||||
{
|
||||
427, 427, 470, 427, 427, 427, 470, 470,
|
||||
427, 427, 470, 427, 427, 427, 470, 470,
|
||||
470, 470, 470, 470, 470, 470, 470, 470,
|
||||
427, 427, 470, 470, 427, 427, 470, 470,
|
||||
427, 427, 470, 427, 427, 427, 470, 470,
|
||||
427, 427, 470, 427, 427, 427, 470, 470,
|
||||
470, 470, 470, 470, 470, 470, 470, 470,
|
||||
470, 470, 470, 470, 470, 470, 470, 470
|
||||
},
|
||||
{
|
||||
1707, 1707, 2433, 2433, 3414, 3414, 3414, 3414,
|
||||
1707, 1707, 2433, 2433, 3414, 3414, 3414, 3414,
|
||||
2433, 2433, 3414, 3414, 4822, 4822, 4822, 4822,
|
||||
2433, 2433, 3414, 3414, 4822, 4822, 4822, 4822,
|
||||
3414, 3414, 4822, 4822, 3414, 3414, 3414, 3414,
|
||||
3414, 3414, 4822, 4822, 3414, 3414, 3414, 3414,
|
||||
3414, 3414, 4822, 4822, 3414, 3414, 3414, 3414,
|
||||
3414, 3414, 4822, 4822, 3414, 3414, 3414, 3414
|
||||
},
|
||||
{
|
||||
1195, 1195, 1281, 1238, 1195, 1195, 1281, 1281,
|
||||
1195, 1195, 1281, 1238, 1195, 1195, 1281, 1281,
|
||||
1195, 1195, 1281, 1238, 1195, 1195, 1281, 1281,
|
||||
1195, 1195, 1281, 1238, 1195, 1195, 1281, 1281,
|
||||
1195, 1195, 1281, 1238, 1195, 1195, 1281, 1281,
|
||||
1195, 1195, 1281, 1238, 1195, 1195, 1281, 1281,
|
||||
1195, 1195, 1281, 1238, 1195, 1195, 1281, 1281,
|
||||
1195, 1195, 1281, 1238, 1195, 1195, 1281, 1281
|
||||
},
|
||||
{
|
||||
2433, 2433, 3414, 3414, 2433, 2433, 2433, 2433,
|
||||
2433, 2433, 3414, 3414, 2433, 2433, 2433, 2433,
|
||||
2433, 2433, 3414, 3414, 2433, 2433, 2433, 2433,
|
||||
2433, 2433, 3414, 3414, 2433, 2433, 2433, 2433,
|
||||
2433, 2433, 3414, 3414, 2433, 2433, 2433, 2433,
|
||||
2433, 2433, 3414, 3414, 2433, 2433, 2433, 2433,
|
||||
2433, 2433, 3414, 3414, 2433, 2433, 2433, 2433,
|
||||
2433, 2433, 3414, 3414, 2433, 2433, 2433, 2433
|
||||
},
|
||||
{
|
||||
1195, 1195, 1195, 1195, 1195, 1195, 1195, 1195,
|
||||
1195, 1195, 1195, 1195, 1195, 1195, 1195, 1195,
|
||||
1281, 1281, 1281, 1281, 1281, 1281, 1281, 1281,
|
||||
1238, 1238, 1238, 1238, 1238, 1238, 1238, 1238,
|
||||
1195, 1195, 1195, 1195, 1195, 1195, 1195, 1195,
|
||||
1195, 1195, 1195, 1195, 1195, 1195, 1195, 1195,
|
||||
1281, 1281, 1281, 1281, 1281, 1281, 1281, 1281,
|
||||
1281, 1281, 1281, 1281, 1281, 1281, 1281, 1281
|
||||
},
|
||||
{
|
||||
2433, 2433, 2433, 2433, 2433, 2433, 2433, 2433,
|
||||
2433, 2433, 2433, 2433, 2433, 2433, 2433, 2433,
|
||||
3414, 3414, 3414, 3414, 3414, 3414, 3414, 3414,
|
||||
3414, 3414, 3414, 3414, 3414, 3414, 3414, 3414,
|
||||
2433, 2433, 2433, 2433, 2433, 2433, 2433, 2433,
|
||||
2433, 2433, 2433, 2433, 2433, 2433, 2433, 2433,
|
||||
2433, 2433, 2433, 2433, 2433, 2433, 2433, 2433,
|
||||
2433, 2433, 2433, 2433, 2433, 2433, 2433, 2433
|
||||
},
|
||||
{
|
||||
1707, 1707, 1707, 1707, 1707, 1707, 1707, 1707,
|
||||
1707, 1707, 1707, 1707, 1707, 1707, 1707, 1707,
|
||||
1707, 1707, 1707, 1707, 1707, 1707, 1707, 1707,
|
||||
1707, 1707, 1707, 1707, 1707, 1707, 1707, 1707,
|
||||
1707, 1707, 1707, 1707, 1707, 1707, 1707, 1707,
|
||||
1707, 1707, 1707, 1707, 1707, 1707, 1707, 1707,
|
||||
1707, 1707, 1707, 1707, 1707, 1707, 1707, 1707,
|
||||
1707, 1707, 1707, 1707, 1707, 1707, 1707, 1707
|
||||
},
|
||||
{
|
||||
86, 171, 171, 214, 214, 214, 214, 257,
|
||||
171, 171, 214, 214, 214, 214, 257, 257,
|
||||
171, 214, 214, 214, 214, 257, 257, 257,
|
||||
214, 214, 214, 214, 257, 257, 257, 299,
|
||||
214, 214, 214, 257, 257, 257, 299, 299,
|
||||
214, 214, 257, 257, 257, 299, 299, 299,
|
||||
214, 257, 257, 257, 299, 299, 299, 342,
|
||||
257, 257, 257, 299, 299, 299, 342, 342
|
||||
},
|
||||
{
|
||||
854, 854, 1195, 1195, 1707, 1707, 1707, 1707,
|
||||
854, 854, 1195, 1195, 1707, 1707, 1707, 1707,
|
||||
1195, 1195, 1707, 1707, 2390, 2390, 2390, 2390,
|
||||
1195, 1195, 1707, 1707, 2390, 2390, 2390, 2390,
|
||||
1707, 1707, 2390, 2390, 1707, 1707, 1707, 1707,
|
||||
1707, 1707, 2390, 2390, 1707, 1707, 1707, 1707,
|
||||
1707, 1707, 2390, 2390, 1707, 1707, 1707, 1707,
|
||||
1707, 1707, 2390, 2390, 1707, 1707, 1707, 1707
|
||||
}
|
||||
};
|
||||
|
||||
static uint16_t ivi4_quant_4x4_intra[5][16] = {
|
||||
{
|
||||
22, 214, 257, 299,
|
||||
214, 257, 299, 342,
|
||||
257, 299, 342, 427,
|
||||
299, 342, 427, 513
|
||||
},
|
||||
{
|
||||
129, 1025, 1451, 1451,
|
||||
1025, 1025, 1451, 1451,
|
||||
1451, 1451, 2049, 2049,
|
||||
1451, 1451, 2049, 2049
|
||||
},
|
||||
{
|
||||
43, 171, 171, 171,
|
||||
43, 171, 171, 171,
|
||||
43, 171, 171, 171,
|
||||
43, 171, 171, 171
|
||||
},
|
||||
{
|
||||
43, 43, 43, 43,
|
||||
171, 171, 171, 171,
|
||||
171, 171, 171, 171,
|
||||
171, 171, 171, 171
|
||||
},
|
||||
{
|
||||
43, 43, 43, 43,
|
||||
43, 43, 43, 43,
|
||||
43, 43, 43, 43,
|
||||
43, 43, 43, 43
|
||||
}
|
||||
};
|
||||
|
||||
static uint16_t ivi4_quant_4x4_inter[5][16] = {
|
||||
{
|
||||
107, 214, 257, 299,
|
||||
214, 257, 299, 299,
|
||||
257, 299, 299, 342,
|
||||
299, 299, 342, 342
|
||||
},
|
||||
{
|
||||
513, 1025, 1238, 1238,
|
||||
1025, 1025, 1238, 1238,
|
||||
1238, 1238, 1451, 1451,
|
||||
1238, 1238, 1451, 1451
|
||||
},
|
||||
{
|
||||
43, 171, 171, 171,
|
||||
43, 171, 171, 171,
|
||||
43, 171, 171, 171,
|
||||
43, 171, 171, 171
|
||||
},
|
||||
{
|
||||
43, 43, 43, 43,
|
||||
171, 171, 171, 171,
|
||||
171, 171, 171, 171,
|
||||
171, 171, 171, 171
|
||||
},
|
||||
{
|
||||
43, 43, 43, 43,
|
||||
43, 43, 43, 43,
|
||||
43, 43, 43, 43,
|
||||
43, 43, 43, 43
|
||||
}
|
||||
};
|
||||
|
||||
/**
|
||||
* Table for mapping quant matrix index from the bitstream
|
||||
* into internal quant table number.
|
||||
*/
|
||||
static uint8_t quant_index_to_tab[22] = {
|
||||
0, 1, 0, 2, 1, 3, 0, 4, 1, 5, 0, 1, 6, 7, 8, // for 8x8 quant matrixes
|
||||
0, 1, 2, 2, 3, 3, 4 // for 4x4 quant matrixes
|
||||
};
|
||||
|
||||
#endif /* AVCODEC_INDEO4DATA_H */
|
||||
@ -1,7 +1,7 @@
|
||||
/*
|
||||
* DSP functions for Indeo Video Interactive codecs (Indeo4 and Indeo5)
|
||||
*
|
||||
* Copyright (c) 2009 Maxim Poliakovski
|
||||
* Copyright (c) 2009-2011 Maxim Poliakovski
|
||||
*
|
||||
* This file is part of Libav.
|
||||
*
|
||||
@ -178,6 +178,153 @@ void ff_ivi_recompose53(const IVIPlaneDesc *plane, uint8_t *dst,
|
||||
}
|
||||
}
|
||||
|
||||
void ff_ivi_recompose_haar(const IVIPlaneDesc *plane, uint8_t *dst,
|
||||
const int dst_pitch, const int num_bands)
|
||||
{
|
||||
int x, y, indx, b0, b1, b2, b3, p0, p1, p2, p3;
|
||||
const IDWTELEM *b0_ptr, *b1_ptr, *b2_ptr, *b3_ptr;
|
||||
int32_t pitch;
|
||||
|
||||
/* all bands should have the same pitch */
|
||||
pitch = plane->bands[0].pitch;
|
||||
|
||||
/* get pointers to the wavelet bands */
|
||||
b0_ptr = plane->bands[0].buf;
|
||||
b1_ptr = plane->bands[1].buf;
|
||||
b2_ptr = plane->bands[2].buf;
|
||||
b3_ptr = plane->bands[3].buf;
|
||||
|
||||
for (y = 0; y < plane->height; y += 2) {
|
||||
for (x = 0, indx = 0; x < plane->width; x += 2, indx++) {
|
||||
/* load coefficients */
|
||||
b0 = b0_ptr[indx]; //should be: b0 = (num_bands > 0) ? b0_ptr[indx] : 0;
|
||||
b1 = b1_ptr[indx]; //should be: b1 = (num_bands > 1) ? b1_ptr[indx] : 0;
|
||||
b2 = b2_ptr[indx]; //should be: b2 = (num_bands > 2) ? b2_ptr[indx] : 0;
|
||||
b3 = b3_ptr[indx]; //should be: b3 = (num_bands > 3) ? b3_ptr[indx] : 0;
|
||||
|
||||
/* haar wavelet recomposition */
|
||||
p0 = (b0 + b1 + b2 + b3 + 2) >> 2;
|
||||
p1 = (b0 + b1 - b2 - b3 + 2) >> 2;
|
||||
p2 = (b0 - b1 + b2 - b3 + 2) >> 2;
|
||||
p3 = (b0 - b1 - b2 + b3 + 2) >> 2;
|
||||
|
||||
/* bias, convert and output four pixels */
|
||||
dst[x] = av_clip_uint8(p0 + 128);
|
||||
dst[x + 1] = av_clip_uint8(p1 + 128);
|
||||
dst[dst_pitch + x] = av_clip_uint8(p2 + 128);
|
||||
dst[dst_pitch + x + 1] = av_clip_uint8(p3 + 128);
|
||||
}// for x
|
||||
|
||||
dst += dst_pitch << 1;
|
||||
|
||||
b0_ptr += pitch;
|
||||
b1_ptr += pitch;
|
||||
b2_ptr += pitch;
|
||||
b3_ptr += pitch;
|
||||
}// for y
|
||||
}
|
||||
|
||||
/** butterfly operation for the inverse Haar transform */
|
||||
#define IVI_HAAR_BFLY(s1, s2, o1, o2, t) \
|
||||
t = (s1 - s2) >> 1;\
|
||||
o1 = (s1 + s2) >> 1;\
|
||||
o2 = t;\
|
||||
|
||||
/** inverse 8-point Haar transform */
|
||||
#define INV_HAAR8(s1, s5, s3, s7, s2, s4, s6, s8,\
|
||||
d1, d2, d3, d4, d5, d6, d7, d8,\
|
||||
t0, t1, t2, t3, t4, t5, t6, t7, t8) {\
|
||||
t1 = s1 << 1; t5 = s5 << 1;\
|
||||
IVI_HAAR_BFLY(t1, t5, t1, t5, t0); IVI_HAAR_BFLY(t1, s3, t1, t3, t0);\
|
||||
IVI_HAAR_BFLY(t5, s7, t5, t7, t0); IVI_HAAR_BFLY(t1, s2, t1, t2, t0);\
|
||||
IVI_HAAR_BFLY(t3, s4, t3, t4, t0); IVI_HAAR_BFLY(t5, s6, t5, t6, t0);\
|
||||
IVI_HAAR_BFLY(t7, s8, t7, t8, t0);\
|
||||
d1 = COMPENSATE(t1);\
|
||||
d2 = COMPENSATE(t2);\
|
||||
d3 = COMPENSATE(t3);\
|
||||
d4 = COMPENSATE(t4);\
|
||||
d5 = COMPENSATE(t5);\
|
||||
d6 = COMPENSATE(t6);\
|
||||
d7 = COMPENSATE(t7);\
|
||||
d8 = COMPENSATE(t8); }
|
||||
|
||||
/** inverse 4-point Haar transform */
|
||||
#define INV_HAAR4(s1, s3, s5, s7) {\
|
||||
HAAR_BFLY(s1, s5); HAAR_BFLY(s1, s3); HAAR_BFLY(s5, s7);\
|
||||
s1 = COMPENSATE(s1);\
|
||||
s3 = COMPENSATE(s3);\
|
||||
s5 = COMPENSATE(s5);\
|
||||
s7 = COMPENSATE(s7); }
|
||||
|
||||
void ff_ivi_inverse_haar_8x8(const int32_t *in, int16_t *out, uint32_t pitch,
|
||||
const uint8_t *flags)
|
||||
{
|
||||
int i, shift, sp1, sp2, sp3, sp4;
|
||||
const int32_t *src;
|
||||
int32_t *dst;
|
||||
int tmp[64];
|
||||
int t0, t1, t2, t3, t4, t5, t6, t7, t8;
|
||||
|
||||
/* apply the InvHaar8 to all columns */
|
||||
#define COMPENSATE(x) (x)
|
||||
src = in;
|
||||
dst = tmp;
|
||||
for (i = 0; i < 8; i++) {
|
||||
if (flags[i]) {
|
||||
/* pre-scaling */
|
||||
shift = !(i & 4);
|
||||
sp1 = src[ 0] << shift;
|
||||
sp2 = src[ 8] << shift;
|
||||
sp3 = src[16] << shift;
|
||||
sp4 = src[24] << shift;
|
||||
INV_HAAR8( sp1, sp2, sp3, sp4,
|
||||
src[32], src[40], src[48], src[56],
|
||||
dst[ 0], dst[ 8], dst[16], dst[24],
|
||||
dst[32], dst[40], dst[48], dst[56],
|
||||
t0, t1, t2, t3, t4, t5, t6, t7, t8);
|
||||
} else
|
||||
dst[ 0] = dst[ 8] = dst[16] = dst[24] =
|
||||
dst[32] = dst[40] = dst[48] = dst[56] = 0;
|
||||
|
||||
src++;
|
||||
dst++;
|
||||
}
|
||||
#undef COMPENSATE
|
||||
|
||||
/* apply the InvHaar8 to all rows */
|
||||
#define COMPENSATE(x) (x)
|
||||
src = tmp;
|
||||
for (i = 0; i < 8; i++) {
|
||||
if ( !src[0] && !src[1] && !src[2] && !src[3]
|
||||
&& !src[4] && !src[5] && !src[6] && !src[7]) {
|
||||
memset(out, 0, 8 * sizeof(out[0]));
|
||||
} else {
|
||||
INV_HAAR8(src[0], src[1], src[2], src[3],
|
||||
src[4], src[5], src[6], src[7],
|
||||
out[0], out[1], out[2], out[3],
|
||||
out[4], out[5], out[6], out[7],
|
||||
t0, t1, t2, t3, t4, t5, t6, t7, t8);
|
||||
}
|
||||
src += 8;
|
||||
out += pitch;
|
||||
}
|
||||
#undef COMPENSATE
|
||||
}
|
||||
|
||||
void ff_ivi_dc_haar_2d(const int32_t *in, int16_t *out, uint32_t pitch,
|
||||
int blk_size)
|
||||
{
|
||||
int x, y;
|
||||
int16_t dc_coeff;
|
||||
|
||||
dc_coeff = (*in + 0) >> 3;
|
||||
|
||||
for (y = 0; y < blk_size; out += pitch, y++) {
|
||||
for (x = 0; x < blk_size; x++)
|
||||
out[x] = dc_coeff;
|
||||
}
|
||||
}
|
||||
|
||||
/** butterfly operation for the inverse slant transform */
|
||||
#define IVI_SLANT_BFLY(s1, s2, o1, o2, t) \
|
||||
t = s1 - s2;\
|
||||
|
||||
@ -1,7 +1,7 @@
|
||||
/*
|
||||
* DSP functions for Indeo Video Interactive codecs (Indeo4 and Indeo5)
|
||||
*
|
||||
* Copyright (c) 2009 Maxim Poliakovski
|
||||
* Copyright (c) 2009-2011 Maxim Poliakovski
|
||||
*
|
||||
* This file is part of Libav.
|
||||
*
|
||||
@ -43,6 +43,43 @@
|
||||
void ff_ivi_recompose53(const IVIPlaneDesc *plane, uint8_t *dst,
|
||||
const int dst_pitch, const int num_bands);
|
||||
|
||||
/**
|
||||
* Haar wavelet recomposition filter for Indeo 4
|
||||
*
|
||||
* @param[in] plane pointer to the descriptor of the plane being processed
|
||||
* @param[out] dst pointer to the destination buffer
|
||||
* @param[in] dst_pitch pitch of the destination buffer
|
||||
* @param[in] num_bands number of wavelet bands to be processed
|
||||
*/
|
||||
void ff_ivi_recompose_haar(const IVIPlaneDesc *plane, uint8_t *dst,
|
||||
const int dst_pitch, const int num_bands);
|
||||
|
||||
/**
|
||||
* two-dimensional inverse Haar 8x8 transform for Indeo 4
|
||||
*
|
||||
* @param[in] in pointer to the vector of transform coefficients
|
||||
* @param[out] out pointer to the output buffer (frame)
|
||||
* @param[in] pitch pitch to move to the next y line
|
||||
* @param[in] flags pointer to the array of column flags:
|
||||
* != 0 - non_empty column, 0 - empty one
|
||||
* (this array must be filled by caller)
|
||||
*/
|
||||
void ff_ivi_inverse_haar_8x8(const int32_t *in, int16_t *out, uint32_t pitch,
|
||||
const uint8_t *flags);
|
||||
|
||||
/**
|
||||
* DC-only two-dimensional inverse Haar transform for Indeo 4.
|
||||
* Performing the inverse transform in this case is equivalent to
|
||||
* spreading DC_coeff >> 3 over the whole block.
|
||||
*
|
||||
* @param[in] in pointer to the dc coefficient
|
||||
* @param[out] out pointer to the output buffer (frame)
|
||||
* @param[in] pitch pitch to move to the next y line
|
||||
* @param[in] blk_size transform block size
|
||||
*/
|
||||
void ff_ivi_dc_haar_2d(const int32_t *in, int16_t *out, uint32_t pitch,
|
||||
int blk_size);
|
||||
|
||||
/**
|
||||
* two-dimensional inverse slant 8x8 transform
|
||||
*
|
||||
|
||||
@ -21,7 +21,7 @@
|
||||
#define AVCODEC_VERSION_H
|
||||
|
||||
#define LIBAVCODEC_VERSION_MAJOR 53
|
||||
#define LIBAVCODEC_VERSION_MINOR 31
|
||||
#define LIBAVCODEC_VERSION_MINOR 32
|
||||
#define LIBAVCODEC_VERSION_MICRO 0
|
||||
|
||||
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
|
||||
|
||||
Loading…
Reference in New Issue
Block a user