c581cb4e4f
* qatar/master: Fix even more missing includes after the common.h removal build: Factor out rangecoder dependencies to CONFIG_RANGECODER build: Factor out error resilience dependencies to CONFIG_ERROR_RESILIENCE x86: avcodec: Consistently name all init files Add more missing includes after removing the implicit common.h Add some more missing includes after removing the implicit common.h Don't include common.h from avutil.h rtmp: Automatically compute the hash for SWFVerification Conflicts: configure doc/APIchanges doc/examples/decoding_encoding.c libavcodec/Makefile libavcodec/assdec.c libavcodec/audio_frame_queue.c libavcodec/avpacket.c libavcodec/dv_profile.c libavcodec/dwt.c libavcodec/libtheoraenc.c libavcodec/rawdec.c libavcodec/rv40dsp.c libavcodec/tiff.c libavcodec/tiffenc.c libavcodec/v210dec.h libavcodec/vc1dsp.c libavcodec/x86/Makefile libavfilter/asrc_anullsrc.c libavfilter/avfilter.c libavfilter/buffer.c libavfilter/formats.c libavfilter/vf_ass.c libavfilter/vf_drawtext.c libavfilter/vf_fade.c libavfilter/vf_select.c libavfilter/video.c libavfilter/vsrc_testsrc.c libavformat/version.h libavutil/audioconvert.c libavutil/error.h libavutil/version.h Merged-by: Michael Niedermayer <michaelni@gmx.at>
90 lines
2.9 KiB
C
90 lines
2.9 KiB
C
/*
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* Apple ProRes compatible decoder
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*
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* Copyright (c) 2010-2011 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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#include "proresdsp.h"
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#include "simple_idct.h"
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#include "libavutil/common.h"
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#define BIAS (1 << (PRORES_BITS_PER_SAMPLE - 1)) ///< bias value for converting signed pixels into unsigned ones
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#define CLIP_MIN (1 << (PRORES_BITS_PER_SAMPLE - 8)) ///< minimum value for clipping resulting pixels
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#define CLIP_MAX (1 << PRORES_BITS_PER_SAMPLE) - CLIP_MIN - 1 ///< maximum value for clipping resulting pixels
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#define CLIP_AND_BIAS(x) (av_clip((x) + BIAS, CLIP_MIN, CLIP_MAX))
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#if CONFIG_PRORES_DECODER | CONFIG_PRORES_LGPL_DECODER
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/**
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* Add bias value, clamp and output pixels of a slice
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*/
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static void put_pixels(uint16_t *dst, int stride, const DCTELEM *in)
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{
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int x, y, src_offset, dst_offset;
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for (y = 0, dst_offset = 0; y < 8; y++, dst_offset += stride) {
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for (x = 0; x < 8; x++) {
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src_offset = (y << 3) + x;
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dst[dst_offset + x] = CLIP_AND_BIAS(in[src_offset]);
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}
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}
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}
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static void prores_idct_put_c(uint16_t *out, int linesize, DCTELEM *block, const int16_t *qmat)
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{
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ff_prores_idct(block, qmat);
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put_pixels(out, linesize >> 1, block);
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}
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#endif
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#if CONFIG_PRORES_KOSTYA_ENCODER
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static void prores_fdct_c(const uint16_t *src, int linesize, DCTELEM *block)
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{
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int x, y;
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const uint16_t *tsrc = src;
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for (y = 0; y < 8; y++) {
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for (x = 0; x < 8; x++)
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block[y * 8 + x] = tsrc[x];
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tsrc += linesize >> 1;
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}
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ff_jpeg_fdct_islow_10(block);
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}
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#endif
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void ff_proresdsp_init(ProresDSPContext *dsp, AVCodecContext *avctx)
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{
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#if CONFIG_PRORES_DECODER | CONFIG_PRORES_LGPL_DECODER
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dsp->idct_put = prores_idct_put_c;
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dsp->idct_permutation_type = FF_NO_IDCT_PERM;
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if (HAVE_MMX) ff_proresdsp_x86_init(dsp, avctx);
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ff_init_scantable_permutation(dsp->idct_permutation,
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dsp->idct_permutation_type);
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#endif
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#if CONFIG_PRORES_KOSTYA_ENCODER
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dsp->fdct = prores_fdct_c;
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dsp->dct_permutation_type = FF_NO_IDCT_PERM;
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ff_init_scantable_permutation(dsp->dct_permutation,
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dsp->dct_permutation_type);
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#endif
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}
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