forked from KolibriOS/kolibrios
474 lines
16 KiB
C
474 lines
16 KiB
C
/*
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* JPEG 2000 decoding support via OpenJPEG
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* Copyright (c) 2009 Jaikrishnan Menon <realityman@gmx.net>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg 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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* FFmpeg 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 FFmpeg; 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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* JPEG 2000 decoder using libopenjpeg
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*/
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#define OPJ_STATIC
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#include "libavutil/common.h"
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#include "libavutil/imgutils.h"
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#include "libavutil/intreadwrite.h"
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#include "libavutil/opt.h"
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#include "libavutil/pixfmt.h"
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#include "avcodec.h"
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#include "internal.h"
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#include "thread.h"
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#if HAVE_OPENJPEG_1_5_OPENJPEG_H
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# include <openjpeg-1.5/openjpeg.h>
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#else
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# include <openjpeg.h>
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#endif
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#define JP2_SIG_TYPE 0x6A502020
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#define JP2_SIG_VALUE 0x0D0A870A
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// pix_fmts with lower bpp have to be listed before
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// similar pix_fmts with higher bpp.
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#define RGB_PIXEL_FORMATS AV_PIX_FMT_RGB24, AV_PIX_FMT_RGBA, \
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AV_PIX_FMT_RGB48, AV_PIX_FMT_RGBA64
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#define GRAY_PIXEL_FORMATS AV_PIX_FMT_GRAY8, AV_PIX_FMT_YA8, \
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AV_PIX_FMT_GRAY16, AV_PIX_FMT_YA16
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#define YUV_PIXEL_FORMATS AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUVA420P, \
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AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA422P, \
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AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUVA444P, \
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AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9, \
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AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9, \
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AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10, \
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AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10, \
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AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, \
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AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14, \
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AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16, \
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AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16
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#define XYZ_PIXEL_FORMATS AV_PIX_FMT_XYZ12
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static const enum AVPixelFormat libopenjpeg_rgb_pix_fmts[] = {
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RGB_PIXEL_FORMATS
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};
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static const enum AVPixelFormat libopenjpeg_gray_pix_fmts[] = {
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GRAY_PIXEL_FORMATS
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};
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static const enum AVPixelFormat libopenjpeg_yuv_pix_fmts[] = {
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YUV_PIXEL_FORMATS
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};
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static const enum AVPixelFormat libopenjpeg_all_pix_fmts[] = {
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RGB_PIXEL_FORMATS, GRAY_PIXEL_FORMATS, YUV_PIXEL_FORMATS, XYZ_PIXEL_FORMATS
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};
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typedef struct LibOpenJPEGContext {
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AVClass *class;
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opj_dparameters_t dec_params;
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opj_event_mgr_t event_mgr;
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int lowqual;
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} LibOpenJPEGContext;
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static void error_callback(const char *msg, void *data)
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{
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av_log(data, AV_LOG_ERROR, "%s", msg);
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}
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static void warning_callback(const char *msg, void *data)
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{
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av_log(data, AV_LOG_WARNING, "%s", msg);
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}
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static void info_callback(const char *msg, void *data)
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{
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av_log(data, AV_LOG_DEBUG, "%s", msg);
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}
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static inline int libopenjpeg_matches_pix_fmt(const opj_image_t *image, enum AVPixelFormat pix_fmt)
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{
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
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int match = 1;
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if (desc->nb_components != image->numcomps) {
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return 0;
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}
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switch (desc->nb_components) {
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case 4:
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match = match &&
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desc->comp[3].depth_minus1 + 1 >= image->comps[3].prec &&
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1 == image->comps[3].dx &&
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1 == image->comps[3].dy;
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case 3:
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match = match &&
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desc->comp[2].depth_minus1 + 1 >= image->comps[2].prec &&
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1 << desc->log2_chroma_w == image->comps[2].dx &&
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1 << desc->log2_chroma_h == image->comps[2].dy;
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case 2:
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match = match &&
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desc->comp[1].depth_minus1 + 1 >= image->comps[1].prec &&
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1 << desc->log2_chroma_w == image->comps[1].dx &&
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1 << desc->log2_chroma_h == image->comps[1].dy;
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case 1:
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match = match &&
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desc->comp[0].depth_minus1 + 1 >= image->comps[0].prec &&
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1 == image->comps[0].dx &&
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1 == image->comps[0].dy;
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default:
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break;
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}
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return match;
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}
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static inline enum AVPixelFormat libopenjpeg_guess_pix_fmt(const opj_image_t *image) {
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int index;
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const enum AVPixelFormat *possible_fmts = NULL;
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int possible_fmts_nb = 0;
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switch (image->color_space) {
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case CLRSPC_SRGB:
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possible_fmts = libopenjpeg_rgb_pix_fmts;
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possible_fmts_nb = FF_ARRAY_ELEMS(libopenjpeg_rgb_pix_fmts);
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break;
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case CLRSPC_GRAY:
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possible_fmts = libopenjpeg_gray_pix_fmts;
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possible_fmts_nb = FF_ARRAY_ELEMS(libopenjpeg_gray_pix_fmts);
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break;
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case CLRSPC_SYCC:
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possible_fmts = libopenjpeg_yuv_pix_fmts;
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possible_fmts_nb = FF_ARRAY_ELEMS(libopenjpeg_yuv_pix_fmts);
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break;
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default:
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possible_fmts = libopenjpeg_all_pix_fmts;
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possible_fmts_nb = FF_ARRAY_ELEMS(libopenjpeg_all_pix_fmts);
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break;
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}
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for (index = 0; index < possible_fmts_nb; ++index)
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if (libopenjpeg_matches_pix_fmt(image, possible_fmts[index])) {
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return possible_fmts[index];
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}
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return AV_PIX_FMT_NONE;
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}
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static inline int libopenjpeg_ispacked(enum AVPixelFormat pix_fmt)
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{
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
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int i, component_plane;
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if (pix_fmt == AV_PIX_FMT_GRAY16)
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return 0;
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component_plane = desc->comp[0].plane;
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for (i = 1; i < desc->nb_components; i++)
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if (component_plane != desc->comp[i].plane)
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return 0;
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return 1;
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}
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static inline void libopenjpeg_copy_to_packed8(AVFrame *picture, opj_image_t *image) {
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uint8_t *img_ptr;
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int index, x, y, c;
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for (y = 0; y < picture->height; y++) {
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index = y * picture->width;
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img_ptr = picture->data[0] + y * picture->linesize[0];
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for (x = 0; x < picture->width; x++, index++)
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for (c = 0; c < image->numcomps; c++)
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*img_ptr++ = 0x80 * image->comps[c].sgnd + image->comps[c].data[index];
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}
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}
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static inline void libopenjpeg_copy_to_packed16(AVFrame *picture, opj_image_t *image) {
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uint16_t *img_ptr;
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(picture->format);
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int index, x, y, c;
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int adjust[4];
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for (x = 0; x < image->numcomps; x++)
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adjust[x] = FFMAX(FFMIN(desc->comp[x].depth_minus1 + 1 - image->comps[x].prec, 8), 0) + desc->comp[x].shift;
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for (y = 0; y < picture->height; y++) {
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index = y * picture->width;
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img_ptr = (uint16_t *) (picture->data[0] + y * picture->linesize[0]);
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for (x = 0; x < picture->width; x++, index++)
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for (c = 0; c < image->numcomps; c++)
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*img_ptr++ = (1 << image->comps[c].prec - 1) * image->comps[c].sgnd +
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(unsigned)image->comps[c].data[index] << adjust[c];
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}
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}
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static inline void libopenjpeg_copyto8(AVFrame *picture, opj_image_t *image) {
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int *comp_data;
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uint8_t *img_ptr;
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int index, x, y;
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for (index = 0; index < image->numcomps; index++) {
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comp_data = image->comps[index].data;
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for (y = 0; y < image->comps[index].h; y++) {
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img_ptr = picture->data[index] + y * picture->linesize[index];
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for (x = 0; x < image->comps[index].w; x++) {
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*img_ptr = 0x80 * image->comps[index].sgnd + *comp_data;
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img_ptr++;
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comp_data++;
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}
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}
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}
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}
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static inline void libopenjpeg_copyto16(AVFrame *picture, opj_image_t *image) {
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int *comp_data;
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uint16_t *img_ptr;
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(picture->format);
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int index, x, y;
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int adjust[4];
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for (x = 0; x < image->numcomps; x++)
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adjust[x] = FFMAX(FFMIN(desc->comp[x].depth_minus1 + 1 - image->comps[x].prec, 8), 0) + desc->comp[x].shift;
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for (index = 0; index < image->numcomps; index++) {
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comp_data = image->comps[index].data;
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for (y = 0; y < image->comps[index].h; y++) {
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img_ptr = (uint16_t *)(picture->data[index] + y * picture->linesize[index]);
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for (x = 0; x < image->comps[index].w; x++) {
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*img_ptr = (1 << image->comps[index].prec - 1) * image->comps[index].sgnd +
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(unsigned)*comp_data << adjust[index];
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img_ptr++;
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comp_data++;
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}
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}
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}
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}
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static av_cold int libopenjpeg_decode_init(AVCodecContext *avctx)
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{
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LibOpenJPEGContext *ctx = avctx->priv_data;
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opj_set_default_decoder_parameters(&ctx->dec_params);
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return 0;
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}
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static int libopenjpeg_decode_frame(AVCodecContext *avctx,
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void *data, int *got_frame,
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AVPacket *avpkt)
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{
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uint8_t *buf = avpkt->data;
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int buf_size = avpkt->size;
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LibOpenJPEGContext *ctx = avctx->priv_data;
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ThreadFrame frame = { .f = data };
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AVFrame *picture = data;
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const AVPixFmtDescriptor *desc;
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opj_dinfo_t *dec;
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opj_cio_t *stream;
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opj_image_t *image;
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int width, height, ret;
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int pixel_size = 0;
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int ispacked = 0;
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int i;
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*got_frame = 0;
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// Check if input is a raw jpeg2k codestream or in jp2 wrapping
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if ((AV_RB32(buf) == 12) &&
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(AV_RB32(buf + 4) == JP2_SIG_TYPE) &&
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(AV_RB32(buf + 8) == JP2_SIG_VALUE)) {
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dec = opj_create_decompress(CODEC_JP2);
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} else {
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/* If the AVPacket contains a jp2c box, then skip to
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* the starting byte of the codestream. */
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if (AV_RB32(buf + 4) == AV_RB32("jp2c"))
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buf += 8;
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dec = opj_create_decompress(CODEC_J2K);
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}
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if (!dec) {
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av_log(avctx, AV_LOG_ERROR, "Error initializing decoder.\n");
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return AVERROR_UNKNOWN;
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}
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memset(&ctx->event_mgr, 0, sizeof(ctx->event_mgr));
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ctx->event_mgr.info_handler = info_callback;
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ctx->event_mgr.error_handler = error_callback;
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ctx->event_mgr.warning_handler = warning_callback;
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opj_set_event_mgr((opj_common_ptr) dec, &ctx->event_mgr, avctx);
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ctx->dec_params.cp_limit_decoding = LIMIT_TO_MAIN_HEADER;
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ctx->dec_params.cp_layer = ctx->lowqual;
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// Tie decoder with decoding parameters
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opj_setup_decoder(dec, &ctx->dec_params);
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stream = opj_cio_open((opj_common_ptr) dec, buf, buf_size);
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if (!stream) {
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av_log(avctx, AV_LOG_ERROR,
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"Codestream could not be opened for reading.\n");
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opj_destroy_decompress(dec);
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return AVERROR_UNKNOWN;
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}
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// Decode the header only.
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image = opj_decode_with_info(dec, stream, NULL);
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opj_cio_close(stream);
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if (!image) {
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av_log(avctx, AV_LOG_ERROR, "Error decoding codestream.\n");
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opj_destroy_decompress(dec);
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return AVERROR_UNKNOWN;
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}
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width = image->x1 - image->x0;
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height = image->y1 - image->y0;
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ret = ff_set_dimensions(avctx, width, height);
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if (ret < 0)
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goto done;
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if (avctx->pix_fmt != AV_PIX_FMT_NONE)
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if (!libopenjpeg_matches_pix_fmt(image, avctx->pix_fmt))
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avctx->pix_fmt = AV_PIX_FMT_NONE;
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if (avctx->pix_fmt == AV_PIX_FMT_NONE)
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avctx->pix_fmt = libopenjpeg_guess_pix_fmt(image);
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if (avctx->pix_fmt == AV_PIX_FMT_NONE) {
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av_log(avctx, AV_LOG_ERROR, "Unable to determine pixel format\n");
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goto done;
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}
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for (i = 0; i < image->numcomps; i++)
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if (image->comps[i].prec > avctx->bits_per_raw_sample)
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avctx->bits_per_raw_sample = image->comps[i].prec;
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if ((ret = ff_thread_get_buffer(avctx, &frame, 0)) < 0)
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goto done;
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ctx->dec_params.cp_limit_decoding = NO_LIMITATION;
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ctx->dec_params.cp_reduce = avctx->lowres;
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// Tie decoder with decoding parameters.
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opj_setup_decoder(dec, &ctx->dec_params);
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stream = opj_cio_open((opj_common_ptr) dec, buf, buf_size);
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if (!stream) {
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av_log(avctx, AV_LOG_ERROR,
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"Codestream could not be opened for reading.\n");
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ret = AVERROR_UNKNOWN;
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goto done;
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}
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opj_image_destroy(image);
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// Decode the codestream
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image = opj_decode_with_info(dec, stream, NULL);
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opj_cio_close(stream);
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if (!image) {
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av_log(avctx, AV_LOG_ERROR, "Error decoding codestream.\n");
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ret = AVERROR_UNKNOWN;
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goto done;
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}
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for (i = 0; i < image->numcomps; i++) {
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if (!image->comps[i].data) {
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av_log(avctx, AV_LOG_ERROR,
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"Image component %d contains no data.\n", i);
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ret = AVERROR_INVALIDDATA;
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goto done;
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}
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}
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desc = av_pix_fmt_desc_get(avctx->pix_fmt);
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pixel_size = desc->comp[0].step_minus1 + 1;
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ispacked = libopenjpeg_ispacked(avctx->pix_fmt);
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switch (pixel_size) {
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case 1:
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if (ispacked) {
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libopenjpeg_copy_to_packed8(picture, image);
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} else {
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libopenjpeg_copyto8(picture, image);
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}
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break;
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case 2:
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if (ispacked) {
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libopenjpeg_copy_to_packed8(picture, image);
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} else {
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libopenjpeg_copyto16(picture, image);
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}
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break;
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case 3:
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case 4:
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if (ispacked) {
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libopenjpeg_copy_to_packed8(picture, image);
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}
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break;
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case 6:
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case 8:
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if (ispacked) {
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libopenjpeg_copy_to_packed16(picture, image);
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}
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break;
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default:
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av_log(avctx, AV_LOG_ERROR, "unsupported pixel size %d\n", pixel_size);
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ret = AVERROR_PATCHWELCOME;
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goto done;
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}
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*got_frame = 1;
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ret = buf_size;
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done:
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opj_image_destroy(image);
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opj_destroy_decompress(dec);
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return ret;
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}
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static av_cold void libopenjpeg_static_init(AVCodec *codec)
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{
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const char *version = opj_version();
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int major, minor;
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if (sscanf(version, "%d.%d", &major, &minor) == 2 && 1000*major + minor <= 1003)
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codec->capabilities |= AV_CODEC_CAP_EXPERIMENTAL;
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}
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#define OFFSET(x) offsetof(LibOpenJPEGContext, x)
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#define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
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static const AVOption options[] = {
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|
{ "lowqual", "Limit the number of layers used for decoding",
|
|
OFFSET(lowqual), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VD },
|
|
{ NULL },
|
|
};
|
|
|
|
static const AVClass openjpeg_class = {
|
|
.class_name = "libopenjpeg",
|
|
.item_name = av_default_item_name,
|
|
.option = options,
|
|
.version = LIBAVUTIL_VERSION_INT,
|
|
};
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|
|
|
AVCodec ff_libopenjpeg_decoder = {
|
|
.name = "libopenjpeg",
|
|
.long_name = NULL_IF_CONFIG_SMALL("OpenJPEG JPEG 2000"),
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.id = AV_CODEC_ID_JPEG2000,
|
|
.priv_data_size = sizeof(LibOpenJPEGContext),
|
|
.init = libopenjpeg_decode_init,
|
|
.decode = libopenjpeg_decode_frame,
|
|
.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS,
|
|
.max_lowres = 31,
|
|
.priv_class = &openjpeg_class,
|
|
.init_static_data = libopenjpeg_static_init,
|
|
};
|