mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
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
/*
|
|
* Apple ProRes compatible decoder
|
|
*
|
|
* Copyright (c) 2010-2011 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
|
|
*/
|
|
|
|
#include "proresdsp.h"
|
|
#include "simple_idct.h"
|
|
#include "libavutil/common.h"
|
|
|
|
#define BIAS (1 << (PRORES_BITS_PER_SAMPLE - 1)) ///< bias value for converting signed pixels into unsigned ones
|
|
#define CLIP_MIN (1 << (PRORES_BITS_PER_SAMPLE - 8)) ///< minimum value for clipping resulting pixels
|
|
#define CLIP_MAX (1 << PRORES_BITS_PER_SAMPLE) - CLIP_MIN - 1 ///< maximum value for clipping resulting pixels
|
|
|
|
#define CLIP_AND_BIAS(x) (av_clip((x) + BIAS, CLIP_MIN, CLIP_MAX))
|
|
|
|
#if CONFIG_PRORES_DECODER | CONFIG_PRORES_LGPL_DECODER
|
|
/**
|
|
* Add bias value, clamp and output pixels of a slice
|
|
*/
|
|
static void put_pixels(uint16_t *dst, int stride, const DCTELEM *in)
|
|
{
|
|
int x, y, src_offset, dst_offset;
|
|
|
|
for (y = 0, dst_offset = 0; y < 8; y++, dst_offset += stride) {
|
|
for (x = 0; x < 8; x++) {
|
|
src_offset = (y << 3) + x;
|
|
|
|
dst[dst_offset + x] = CLIP_AND_BIAS(in[src_offset]);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void prores_idct_put_c(uint16_t *out, int linesize, DCTELEM *block, const int16_t *qmat)
|
|
{
|
|
ff_prores_idct(block, qmat);
|
|
put_pixels(out, linesize >> 1, block);
|
|
}
|
|
#endif
|
|
|
|
#if CONFIG_PRORES_KOSTYA_ENCODER
|
|
static void prores_fdct_c(const uint16_t *src, int linesize, DCTELEM *block)
|
|
{
|
|
int x, y;
|
|
const uint16_t *tsrc = src;
|
|
|
|
for (y = 0; y < 8; y++) {
|
|
for (x = 0; x < 8; x++)
|
|
block[y * 8 + x] = tsrc[x];
|
|
tsrc += linesize >> 1;
|
|
}
|
|
ff_jpeg_fdct_islow_10(block);
|
|
}
|
|
#endif
|
|
|
|
void ff_proresdsp_init(ProresDSPContext *dsp, AVCodecContext *avctx)
|
|
{
|
|
#if CONFIG_PRORES_DECODER | CONFIG_PRORES_LGPL_DECODER
|
|
dsp->idct_put = prores_idct_put_c;
|
|
dsp->idct_permutation_type = FF_NO_IDCT_PERM;
|
|
|
|
if (HAVE_MMX) ff_proresdsp_x86_init(dsp, avctx);
|
|
|
|
ff_init_scantable_permutation(dsp->idct_permutation,
|
|
dsp->idct_permutation_type);
|
|
#endif
|
|
#if CONFIG_PRORES_KOSTYA_ENCODER
|
|
dsp->fdct = prores_fdct_c;
|
|
dsp->dct_permutation_type = FF_NO_IDCT_PERM;
|
|
ff_init_scantable_permutation(dsp->dct_permutation,
|
|
dsp->dct_permutation_type);
|
|
#endif
|
|
}
|