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https://git.ffmpeg.org/ffmpeg.git
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libopenjpeg: support YUV and deep RGB pixel formats
Based on FFmpeg version from
commit 3275981207
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
This commit is contained in:
Michael Bradshaw
Luca Barbato
parent
92566540c3
commit
44dc9c6af0
@ -27,8 +27,9 @@
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#define OPJ_STATIC
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#include <openjpeg.h>
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#include "libavutil/imgutils.h"
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#include "libavutil/intreadwrite.h"
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#include "libavutil/imgutils.h"
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#include "libavutil/pixfmt.h"
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#include "libavutil/opt.h"
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#include "avcodec.h"
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#include "thread.h"
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@ -36,6 +37,32 @@
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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 PIX_FMT_RGB24, PIX_FMT_RGBA, \
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PIX_FMT_RGB48
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#define GRAY_PIXEL_FORMATS PIX_FMT_GRAY8, PIX_FMT_Y400A, \
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PIX_FMT_GRAY16
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#define YUV_PIXEL_FORMATS PIX_FMT_YUV410P, PIX_FMT_YUV411P, \
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PIX_FMT_YUVA420P, \
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PIX_FMT_YUV420P, PIX_FMT_YUV422P, \
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PIX_FMT_YUV440P, PIX_FMT_YUV444P, \
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PIX_FMT_YUV420P9, PIX_FMT_YUV422P9, \
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PIX_FMT_YUV444P9, \
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PIX_FMT_YUV420P10, PIX_FMT_YUV422P10, \
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PIX_FMT_YUV444P10, \
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PIX_FMT_YUV420P16, PIX_FMT_YUV422P16, \
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PIX_FMT_YUV444P16
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static const enum PixelFormat rgb_pix_fmts[] = {RGB_PIXEL_FORMATS};
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static const enum PixelFormat gray_pix_fmts[] = {GRAY_PIXEL_FORMATS};
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static const enum PixelFormat yuv_pix_fmts[] = {YUV_PIXEL_FORMATS};
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static const enum PixelFormat any_pix_fmts[] = {RGB_PIXEL_FORMATS,
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GRAY_PIXEL_FORMATS,
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YUV_PIXEL_FORMATS};
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typedef struct {
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AVClass *class;
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opj_dparameters_t dec_params;
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@ -44,14 +71,165 @@ typedef struct {
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int lowqual;
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} LibOpenJPEGContext;
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static int check_image_attributes(opj_image_t *image)
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static int libopenjpeg_matches_pix_fmt(const opj_image_t *img,
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enum PixelFormat pix_fmt)
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{
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return image->comps[0].dx == image->comps[1].dx &&
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image->comps[1].dx == image->comps[2].dx &&
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image->comps[0].dy == image->comps[1].dy &&
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image->comps[1].dy == image->comps[2].dy &&
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image->comps[0].prec == image->comps[1].prec &&
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image->comps[1].prec == image->comps[2].prec;
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AVPixFmtDescriptor des = av_pix_fmt_descriptors[pix_fmt];
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int match = 1;
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if (des.nb_components != img->numcomps) {
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return 0;
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}
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switch (des.nb_components) {
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case 4:
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match = match &&
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des.comp[3].depth_minus1 + 1 >= img->comps[3].prec &&
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1 == img->comps[3].dx &&
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1 == img->comps[3].dy;
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case 3:
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match = match &&
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des.comp[2].depth_minus1 + 1 >= img->comps[2].prec &&
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1 << des.log2_chroma_w == img->comps[2].dx &&
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1 << des.log2_chroma_h == img->comps[2].dy;
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case 2:
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match = match &&
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des.comp[1].depth_minus1 + 1 >= img->comps[1].prec &&
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1 << des.log2_chroma_w == img->comps[1].dx &&
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1 << des.log2_chroma_h == img->comps[1].dy;
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case 1:
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match = match &&
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des.comp[0].depth_minus1 + 1 >= img->comps[0].prec &&
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1 == img->comps[0].dx &&
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1 == img->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 enum PixelFormat libopenjpeg_guess_pix_fmt(const opj_image_t *image)
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{
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int index;
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const enum PixelFormat *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 = rgb_pix_fmts;
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possible_fmts_nb = FF_ARRAY_ELEMS(rgb_pix_fmts);
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break;
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case CLRSPC_GRAY:
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possible_fmts = gray_pix_fmts;
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possible_fmts_nb = FF_ARRAY_ELEMS(gray_pix_fmts);
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break;
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case CLRSPC_SYCC:
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possible_fmts = yuv_pix_fmts;
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possible_fmts_nb = FF_ARRAY_ELEMS(yuv_pix_fmts);
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break;
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default:
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possible_fmts = any_pix_fmts;
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possible_fmts_nb = FF_ARRAY_ELEMS(any_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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}
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return PIX_FMT_NONE;
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}
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static inline int libopenjpeg_ispacked(enum PixelFormat pix_fmt)
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{
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int i, component_plane;
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if (pix_fmt == PIX_FMT_GRAY16)
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return 0;
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component_plane = av_pix_fmt_descriptors[pix_fmt].comp[0].plane;
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for (i = 1; i < av_pix_fmt_descriptors[pix_fmt].nb_components; i++) {
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if (component_plane != av_pix_fmt_descriptors[pix_fmt].comp[i].plane)
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return 0;
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}
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return 1;
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}
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static void libopenjpeg_copy_to_packed8(AVFrame *picture, opj_image_t *image)
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{
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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++ = image->comps[c].data[index];
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}
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}
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}
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}
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static void libopenjpeg_copy_to_packed16(AVFrame *picture, opj_image_t *image)
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{
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uint16_t *img_ptr;
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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(16 - image->comps[x].prec, 8), 0);
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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++ = image->comps[c].data[index] << adjust[c];
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}
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}
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}
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}
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static void libopenjpeg_copyto8(AVFrame *picture, opj_image_t *image)
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{
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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 = (uint8_t) *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 void libopenjpeg_copyto16(AVFrame *p, opj_image_t *image)
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{
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int *comp_data;
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uint16_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 = (uint16_t*) (p->data[index] + y * p->linesize[index]);
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for (x = 0; x < image->comps[index].w; x++) {
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*img_ptr = *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 av_cold int libopenjpeg_decode_init(AVCodecContext *avctx)
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@ -59,6 +237,7 @@ static av_cold int libopenjpeg_decode_init(AVCodecContext *avctx)
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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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avcodec_get_frame_defaults(&ctx->image);
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avctx->coded_frame = &ctx->image;
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return 0;
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}
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@ -82,10 +261,10 @@ static int libopenjpeg_decode_frame(AVCodecContext *avctx,
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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, has_alpha = 0, ret = -1;
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int x, y, index;
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uint8_t *img_ptr;
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int adjust[4];
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int width, height, ret = -1;
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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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*data_size = 0;
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@ -148,39 +327,31 @@ static int libopenjpeg_decode_frame(AVCodecContext *avctx,
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avcodec_set_dimensions(avctx, width, height);
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switch (image->numcomps) {
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case 1:
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avctx->pix_fmt = PIX_FMT_GRAY8;
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break;
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case 3:
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if (check_image_attributes(image)) {
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avctx->pix_fmt = PIX_FMT_RGB24;
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} else {
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avctx->pix_fmt = PIX_FMT_GRAY8;
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av_log(avctx, AV_LOG_ERROR,
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"Only first component will be used.\n");
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}
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break;
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case 4:
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has_alpha = 1;
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avctx->pix_fmt = PIX_FMT_RGBA;
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break;
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default:
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av_log(avctx, AV_LOG_ERROR, "%d components unsupported.\n",
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image->numcomps);
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if (avctx->pix_fmt != PIX_FMT_NONE)
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if (!libopenjpeg_matches_pix_fmt(image, avctx->pix_fmt))
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avctx->pix_fmt = PIX_FMT_NONE;
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if (avctx->pix_fmt == PIX_FMT_NONE)
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avctx->pix_fmt = libopenjpeg_guess_pix_fmt(image);
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if (avctx->pix_fmt == PIX_FMT_NONE) {
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av_log(avctx, AV_LOG_ERROR, "Unable to determine pixel format\n");
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ret = AVERROR_INVALIDDATA;
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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 (picture->data[0])
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ff_thread_release_buffer(avctx, picture);
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if (ff_thread_get_buffer(avctx, picture) < 0) {
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av_log(avctx, AV_LOG_ERROR, "ff_thread_get_buffer() failed\n");
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return -1;
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goto done;
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}
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ff_thread_finish_setup(avctx);
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ctx->dec_params.cp_limit_decoding = NO_LIMITATION;
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// Tie decoder with decoding parameters.
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opj_setup_decoder(dec, &ctx->dec_params);
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@ -188,29 +359,53 @@ static int libopenjpeg_decode_frame(AVCodecContext *avctx,
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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 -1;
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goto done;
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}
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// Decode the codestream.
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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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for (x = 0; x < image->numcomps; x++)
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adjust[x] = FFMAX(image->comps[x].prec - 8, 0);
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if (!image) {
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av_log(avctx, AV_LOG_ERROR, "Error decoding codestream.\n");
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goto done;
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}
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for (y = 0; y < avctx->height; y++) {
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index = y * avctx->width;
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img_ptr = picture->data[0] + y * picture->linesize[0];
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for (x = 0; x < avctx->width; x++, index++) {
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*img_ptr++ = image->comps[0].data[index] >> adjust[0];
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if (image->numcomps > 2 && check_image_attributes(image)) {
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*img_ptr++ = image->comps[1].data[index] >> adjust[1];
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*img_ptr++ = image->comps[2].data[index] >> adjust[2];
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if (has_alpha)
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*img_ptr++ = image->comps[3].data[index] >> adjust[3];
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}
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pixel_size =
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av_pix_fmt_descriptors[avctx->pix_fmt].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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goto done;
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}
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*output = ctx->image;
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