summaryrefslogtreecommitdiff
path: root/ffmpeg1/libavcodec/libopenjpegdec.c
diff options
context:
space:
mode:
Diffstat (limited to 'ffmpeg1/libavcodec/libopenjpegdec.c')
-rw-r--r--ffmpeg1/libavcodec/libopenjpegdec.c408
1 files changed, 0 insertions, 408 deletions
diff --git a/ffmpeg1/libavcodec/libopenjpegdec.c b/ffmpeg1/libavcodec/libopenjpegdec.c
deleted file mode 100644
index f8b6165..0000000
--- a/ffmpeg1/libavcodec/libopenjpegdec.c
+++ /dev/null
@@ -1,408 +0,0 @@
-/*
- * JPEG 2000 decoding support via OpenJPEG
- * Copyright (c) 2009 Jaikrishnan Menon <realityman@gmx.net>
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg 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.
- *
- * FFmpeg 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 FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/**
- * @file
- * JPEG 2000 decoder using libopenjpeg
- */
-
-#define OPJ_STATIC
-
-#include "libavutil/common.h"
-#include "libavutil/intreadwrite.h"
-#include "libavutil/imgutils.h"
-#include "libavutil/pixfmt.h"
-#include "libavutil/opt.h"
-#include "avcodec.h"
-#include "thread.h"
-
-#if HAVE_OPENJPEG_1_5_OPENJPEG_H
-# include <openjpeg-1.5/openjpeg.h>
-#else
-# include <openjpeg.h>
-#endif
-
-#define JP2_SIG_TYPE 0x6A502020
-#define JP2_SIG_VALUE 0x0D0A870A
-
-// pix_fmts with lower bpp have to be listed before
-// similar pix_fmts with higher bpp.
-#define RGB_PIXEL_FORMATS AV_PIX_FMT_RGB24,AV_PIX_FMT_RGBA,AV_PIX_FMT_RGB48,AV_PIX_FMT_RGBA64
-#define GRAY_PIXEL_FORMATS AV_PIX_FMT_GRAY8,AV_PIX_FMT_GRAY8A,AV_PIX_FMT_GRAY16
-#define YUV_PIXEL_FORMATS AV_PIX_FMT_YUV410P,AV_PIX_FMT_YUV411P,AV_PIX_FMT_YUVA420P, \
- AV_PIX_FMT_YUV420P,AV_PIX_FMT_YUV422P,AV_PIX_FMT_YUVA422P, \
- AV_PIX_FMT_YUV440P,AV_PIX_FMT_YUV444P,AV_PIX_FMT_YUVA444P, \
- AV_PIX_FMT_YUV420P9,AV_PIX_FMT_YUV422P9,AV_PIX_FMT_YUV444P9, \
- AV_PIX_FMT_YUVA420P9,AV_PIX_FMT_YUVA422P9,AV_PIX_FMT_YUVA444P9, \
- AV_PIX_FMT_YUV420P10,AV_PIX_FMT_YUV422P10,AV_PIX_FMT_YUV444P10, \
- AV_PIX_FMT_YUVA420P10,AV_PIX_FMT_YUVA422P10,AV_PIX_FMT_YUVA444P10, \
- AV_PIX_FMT_YUV420P12,AV_PIX_FMT_YUV422P12,AV_PIX_FMT_YUV444P12, \
- AV_PIX_FMT_YUV420P14,AV_PIX_FMT_YUV422P14,AV_PIX_FMT_YUV444P14, \
- AV_PIX_FMT_YUV420P16,AV_PIX_FMT_YUV422P16,AV_PIX_FMT_YUV444P16, \
- AV_PIX_FMT_YUVA420P16,AV_PIX_FMT_YUVA422P16,AV_PIX_FMT_YUVA444P16
-
-static const enum AVPixelFormat libopenjpeg_rgb_pix_fmts[] = {RGB_PIXEL_FORMATS};
-static const enum AVPixelFormat libopenjpeg_gray_pix_fmts[] = {GRAY_PIXEL_FORMATS};
-static const enum AVPixelFormat libopenjpeg_yuv_pix_fmts[] = {YUV_PIXEL_FORMATS};
-static const enum AVPixelFormat libopenjpeg_all_pix_fmts[] = {RGB_PIXEL_FORMATS,GRAY_PIXEL_FORMATS,YUV_PIXEL_FORMATS};
-
-typedef struct {
- AVClass *class;
- opj_dparameters_t dec_params;
- int lowqual;
-} LibOpenJPEGContext;
-
-static inline int libopenjpeg_matches_pix_fmt(const opj_image_t *image, enum AVPixelFormat pix_fmt)
-{
- const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
- int match = 1;
-
- if (desc->nb_components != image->numcomps) {
- return 0;
- }
-
- switch (desc->nb_components) {
- case 4: match = match && desc->comp[3].depth_minus1 + 1 >= image->comps[3].prec &&
- 1 == image->comps[3].dx &&
- 1 == image->comps[3].dy;
- case 3: match = match && desc->comp[2].depth_minus1 + 1 >= image->comps[2].prec &&
- 1 << desc->log2_chroma_w == image->comps[2].dx &&
- 1 << desc->log2_chroma_h == image->comps[2].dy;
- case 2: match = match && desc->comp[1].depth_minus1 + 1 >= image->comps[1].prec &&
- 1 << desc->log2_chroma_w == image->comps[1].dx &&
- 1 << desc->log2_chroma_h == image->comps[1].dy;
- case 1: match = match && desc->comp[0].depth_minus1 + 1 >= image->comps[0].prec &&
- 1 == image->comps[0].dx &&
- 1 == image->comps[0].dy;
- default:
- break;
- }
-
- return match;
-}
-
-static inline enum AVPixelFormat libopenjpeg_guess_pix_fmt(const opj_image_t *image) {
- int index;
- const enum AVPixelFormat *possible_fmts = NULL;
- int possible_fmts_nb = 0;
-
- switch (image->color_space) {
- case CLRSPC_SRGB:
- possible_fmts = libopenjpeg_rgb_pix_fmts;
- possible_fmts_nb = FF_ARRAY_ELEMS(libopenjpeg_rgb_pix_fmts);
- break;
- case CLRSPC_GRAY:
- possible_fmts = libopenjpeg_gray_pix_fmts;
- possible_fmts_nb = FF_ARRAY_ELEMS(libopenjpeg_gray_pix_fmts);
- break;
- case CLRSPC_SYCC:
- possible_fmts = libopenjpeg_yuv_pix_fmts;
- possible_fmts_nb = FF_ARRAY_ELEMS(libopenjpeg_yuv_pix_fmts);
- break;
- default:
- possible_fmts = libopenjpeg_all_pix_fmts;
- possible_fmts_nb = FF_ARRAY_ELEMS(libopenjpeg_all_pix_fmts);
- break;
- }
-
- for (index = 0; index < possible_fmts_nb; ++index) {
- if (libopenjpeg_matches_pix_fmt(image, possible_fmts[index])) {
- return possible_fmts[index];
- }
- }
-
- return AV_PIX_FMT_NONE;
-}
-
-static inline int libopenjpeg_ispacked(enum AVPixelFormat pix_fmt)
-{
- const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
- int i, component_plane;
-
- if (pix_fmt == AV_PIX_FMT_GRAY16)
- return 0;
-
- component_plane = desc->comp[0].plane;
- for (i = 1; i < desc->nb_components; i++) {
- if (component_plane != desc->comp[i].plane)
- return 0;
- }
- return 1;
-}
-
-static inline void libopenjpeg_copy_to_packed8(AVFrame *picture, opj_image_t *image) {
- uint8_t *img_ptr;
- int index, x, y, c;
- for (y = 0; y < picture->height; y++) {
- index = y*picture->width;
- img_ptr = picture->data[0] + y*picture->linesize[0];
- for (x = 0; x < picture->width; x++, index++) {
- for (c = 0; c < image->numcomps; c++) {
- *img_ptr++ = image->comps[c].data[index];
- }
- }
- }
-}
-
-static inline void libopenjpeg_copy_to_packed16(AVFrame *picture, opj_image_t *image) {
- uint16_t *img_ptr;
- int index, x, y, c;
- int adjust[4];
- for (x = 0; x < image->numcomps; x++)
- adjust[x] = FFMAX(FFMIN(16 - image->comps[x].prec, 8), 0);
-
- for (y = 0; y < picture->height; y++) {
- index = y*picture->width;
- img_ptr = (uint16_t*) (picture->data[0] + y*picture->linesize[0]);
- for (x = 0; x < picture->width; x++, index++) {
- for (c = 0; c < image->numcomps; c++) {
- *img_ptr++ = image->comps[c].data[index] << adjust[c];
- }
- }
- }
-}
-
-static inline void libopenjpeg_copyto8(AVFrame *picture, opj_image_t *image) {
- int *comp_data;
- uint8_t *img_ptr;
- int index, x, y;
-
- for (index = 0; index < image->numcomps; index++) {
- comp_data = image->comps[index].data;
- for (y = 0; y < image->comps[index].h; y++) {
- img_ptr = picture->data[index] + y * picture->linesize[index];
- for (x = 0; x < image->comps[index].w; x++) {
- *img_ptr = (uint8_t) *comp_data;
- img_ptr++;
- comp_data++;
- }
- }
- }
-}
-
-static inline void libopenjpeg_copyto16(AVFrame *picture, opj_image_t *image) {
- int *comp_data;
- uint16_t *img_ptr;
- int index, x, y;
- for (index = 0; index < image->numcomps; index++) {
- comp_data = image->comps[index].data;
- for (y = 0; y < image->comps[index].h; y++) {
- img_ptr = (uint16_t*) (picture->data[index] + y * picture->linesize[index]);
- for (x = 0; x < image->comps[index].w; x++) {
- *img_ptr = *comp_data;
- img_ptr++;
- comp_data++;
- }
- }
- }
-}
-
-static av_cold int libopenjpeg_decode_init(AVCodecContext *avctx)
-{
- LibOpenJPEGContext *ctx = avctx->priv_data;
-
- opj_set_default_decoder_parameters(&ctx->dec_params);
- return 0;
-}
-
-static int libopenjpeg_decode_frame(AVCodecContext *avctx,
- void *data, int *got_frame,
- AVPacket *avpkt)
-{
- uint8_t *buf = avpkt->data;
- int buf_size = avpkt->size;
- LibOpenJPEGContext *ctx = avctx->priv_data;
- ThreadFrame frame = { .f = data };
- AVFrame *picture = data;
- const AVPixFmtDescriptor *desc;
- opj_dinfo_t *dec;
- opj_cio_t *stream;
- opj_image_t *image;
- int width, height, ret = -1;
- int pixel_size = 0;
- int ispacked = 0;
- int i;
-
- *got_frame = 0;
-
- // Check if input is a raw jpeg2k codestream or in jp2 wrapping
- if ((AV_RB32(buf) == 12) &&
- (AV_RB32(buf + 4) == JP2_SIG_TYPE) &&
- (AV_RB32(buf + 8) == JP2_SIG_VALUE)) {
- dec = opj_create_decompress(CODEC_JP2);
- } else {
- /* If the AVPacket contains a jp2c box, then skip to
- * the starting byte of the codestream. */
- if (AV_RB32(buf + 4) == AV_RB32("jp2c"))
- buf += 8;
- dec = opj_create_decompress(CODEC_J2K);
- }
-
- if (!dec) {
- av_log(avctx, AV_LOG_ERROR, "Error initializing decoder.\n");
- return -1;
- }
- opj_set_event_mgr((opj_common_ptr)dec, NULL, NULL);
- ctx->dec_params.cp_limit_decoding = LIMIT_TO_MAIN_HEADER;
- ctx->dec_params.cp_layer = ctx->lowqual;
- // Tie decoder with decoding parameters
- opj_setup_decoder(dec, &ctx->dec_params);
- stream = opj_cio_open((opj_common_ptr)dec, buf, buf_size);
-
- if (!stream) {
- av_log(avctx, AV_LOG_ERROR,
- "Codestream could not be opened for reading.\n");
- opj_destroy_decompress(dec);
- return -1;
- }
-
- // Decode the header only.
- image = opj_decode_with_info(dec, stream, NULL);
- opj_cio_close(stream);
-
- if (!image) {
- av_log(avctx, AV_LOG_ERROR, "Error decoding codestream.\n");
- opj_destroy_decompress(dec);
- return -1;
- }
-
- width = image->x1 - image->x0;
- height = image->y1 - image->y0;
-
- if (av_image_check_size(width, height, 0, avctx) < 0) {
- av_log(avctx, AV_LOG_ERROR,
- "%dx%d dimension invalid.\n", width, height);
- goto done;
- }
-
- avcodec_set_dimensions(avctx, width, height);
-
- if (avctx->pix_fmt != AV_PIX_FMT_NONE)
- if (!libopenjpeg_matches_pix_fmt(image, avctx->pix_fmt))
- avctx->pix_fmt = AV_PIX_FMT_NONE;
-
- if (avctx->pix_fmt == AV_PIX_FMT_NONE)
- avctx->pix_fmt = libopenjpeg_guess_pix_fmt(image);
-
- if (avctx->pix_fmt == AV_PIX_FMT_NONE) {
- av_log(avctx, AV_LOG_ERROR, "Unable to determine pixel format\n");
- goto done;
- }
- for (i = 0; i < image->numcomps; i++)
- if (image->comps[i].prec > avctx->bits_per_raw_sample)
- avctx->bits_per_raw_sample = image->comps[i].prec;
-
- if (ff_thread_get_buffer(avctx, &frame, 0) < 0)
- goto done;
-
- ctx->dec_params.cp_limit_decoding = NO_LIMITATION;
- ctx->dec_params.cp_reduce = avctx->lowres;
- // Tie decoder with decoding parameters.
- opj_setup_decoder(dec, &ctx->dec_params);
- stream = opj_cio_open((opj_common_ptr)dec, buf, buf_size);
- if (!stream) {
- av_log(avctx, AV_LOG_ERROR,
- "Codestream could not be opened for reading.\n");
- goto done;
- }
-
- opj_image_destroy(image);
- // Decode the codestream
- image = opj_decode_with_info(dec, stream, NULL);
- opj_cio_close(stream);
-
- if (!image) {
- av_log(avctx, AV_LOG_ERROR, "Error decoding codestream.\n");
- goto done;
- }
-
- desc = av_pix_fmt_desc_get(avctx->pix_fmt);
- pixel_size = desc->comp[0].step_minus1 + 1;
- ispacked = libopenjpeg_ispacked(avctx->pix_fmt);
-
- switch (pixel_size) {
- case 1:
- if (ispacked) {
- libopenjpeg_copy_to_packed8(picture, image);
- } else {
- libopenjpeg_copyto8(picture, image);
- }
- break;
- case 2:
- if (ispacked) {
- libopenjpeg_copy_to_packed8(picture, image);
- } else {
- libopenjpeg_copyto16(picture, image);
- }
- break;
- case 3:
- case 4:
- if (ispacked) {
- libopenjpeg_copy_to_packed8(picture, image);
- }
- break;
- case 6:
- case 8:
- if (ispacked) {
- libopenjpeg_copy_to_packed16(picture, image);
- }
- break;
- default:
- av_log(avctx, AV_LOG_ERROR, "unsupported pixel size %d\n", pixel_size);
- goto done;
- }
-
- *got_frame = 1;
- ret = buf_size;
-
-done:
- opj_image_destroy(image);
- opj_destroy_decompress(dec);
- return ret;
-}
-
-#define OFFSET(x) offsetof(LibOpenJPEGContext, x)
-#define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
-
-static const AVOption options[] = {
- { "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 class = {
- .class_name = "libopenjpeg",
- .item_name = av_default_item_name,
- .option = options,
- .version = LIBAVUTIL_VERSION_INT,
-};
-
-AVCodec ff_libopenjpeg_decoder = {
- .name = "libopenjpeg",
- .type = AVMEDIA_TYPE_VIDEO,
- .id = AV_CODEC_ID_JPEG2000,
- .priv_data_size = sizeof(LibOpenJPEGContext),
- .init = libopenjpeg_decode_init,
- .decode = libopenjpeg_decode_frame,
- .capabilities = CODEC_CAP_DR1 | CODEC_CAP_FRAME_THREADS,
- .max_lowres = 31,
- .long_name = NULL_IF_CONFIG_SMALL("OpenJPEG JPEG 2000"),
- .priv_class = &class,
-};
generated by cgit v1.2.3 (git 2.39.1) at 2025-12-06 16:29:56 +0000