* JPEG 2000 decoding support via OpenJPEG
* Copyright (c) 2009 Jaikrishnan Menon <realityman@gmx.net>
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * 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.
*
- * Libav is distributed in the hope that it will be useful,
+ * 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 Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
// pix_fmts with lower bpp have to be listed before
// similar pix_fmts with higher bpp.
-#define RGB_PIXEL_FORMATS PIX_FMT_RGB24, PIX_FMT_RGBA, \
- PIX_FMT_RGB48
-
-#define GRAY_PIXEL_FORMATS PIX_FMT_GRAY8, PIX_FMT_Y400A, \
- PIX_FMT_GRAY16
-
-#define YUV_PIXEL_FORMATS PIX_FMT_YUV410P, PIX_FMT_YUV411P, \
- PIX_FMT_YUVA420P, \
- PIX_FMT_YUV420P, PIX_FMT_YUV422P, \
- PIX_FMT_YUV440P, PIX_FMT_YUV444P, \
- PIX_FMT_YUV420P9, PIX_FMT_YUV422P9, \
- PIX_FMT_YUV444P9, \
- PIX_FMT_YUV420P10, PIX_FMT_YUV422P10, \
- PIX_FMT_YUV444P10, \
- PIX_FMT_YUV420P16, PIX_FMT_YUV422P16, \
- PIX_FMT_YUV444P16
-
-static const enum PixelFormat rgb_pix_fmts[] = {RGB_PIXEL_FORMATS};
-static const enum PixelFormat gray_pix_fmts[] = {GRAY_PIXEL_FORMATS};
-static const enum PixelFormat yuv_pix_fmts[] = {YUV_PIXEL_FORMATS};
-static const enum PixelFormat any_pix_fmts[] = {RGB_PIXEL_FORMATS,
- GRAY_PIXEL_FORMATS,
- YUV_PIXEL_FORMATS};
+#define RGB_PIXEL_FORMATS PIX_FMT_RGB24,PIX_FMT_RGBA,PIX_FMT_RGB48,PIX_FMT_RGBA64
+#define GRAY_PIXEL_FORMATS PIX_FMT_GRAY8,PIX_FMT_GRAY8A,PIX_FMT_GRAY16
+#define YUV_PIXEL_FORMATS PIX_FMT_YUV410P,PIX_FMT_YUV411P,PIX_FMT_YUVA420P, \
+ PIX_FMT_YUV420P,PIX_FMT_YUV422P,PIX_FMT_YUVA422P, \
+ PIX_FMT_YUV440P,PIX_FMT_YUV444P,PIX_FMT_YUVA444P, \
+ PIX_FMT_YUV420P9,PIX_FMT_YUV422P9,PIX_FMT_YUV444P9, \
+ PIX_FMT_YUV420P10,PIX_FMT_YUV422P10,PIX_FMT_YUV444P10, \
+ PIX_FMT_YUV420P12,PIX_FMT_YUV422P12,PIX_FMT_YUV444P12, \
+ PIX_FMT_YUV420P14,PIX_FMT_YUV422P14,PIX_FMT_YUV444P14, \
+ PIX_FMT_YUV420P16,PIX_FMT_YUV422P16,PIX_FMT_YUV444P16
+
+static const enum PixelFormat libopenjpeg_rgb_pix_fmts[] = {RGB_PIXEL_FORMATS};
+static const enum PixelFormat libopenjpeg_gray_pix_fmts[] = {GRAY_PIXEL_FORMATS};
+static const enum PixelFormat libopenjpeg_yuv_pix_fmts[] = {YUV_PIXEL_FORMATS};
+static const enum PixelFormat libopenjpeg_all_pix_fmts[] = {RGB_PIXEL_FORMATS,GRAY_PIXEL_FORMATS,YUV_PIXEL_FORMATS};
typedef struct {
AVClass *class;
opj_dparameters_t dec_params;
AVFrame image;
- int lowres;
int lowqual;
} LibOpenJPEGContext;
-static int libopenjpeg_matches_pix_fmt(const opj_image_t *img,
- enum PixelFormat pix_fmt)
+static inline int libopenjpeg_matches_pix_fmt(const opj_image_t *image, enum PixelFormat pix_fmt)
{
- AVPixFmtDescriptor des = av_pix_fmt_descriptors[pix_fmt];
+ AVPixFmtDescriptor descriptor = av_pix_fmt_descriptors[pix_fmt];
int match = 1;
- if (des.nb_components != img->numcomps) {
+ if (descriptor.nb_components != image->numcomps) {
return 0;
}
- switch (des.nb_components) {
- case 4:
- match = match &&
- des.comp[3].depth_minus1 + 1 >= img->comps[3].prec &&
- 1 == img->comps[3].dx &&
- 1 == img->comps[3].dy;
- case 3:
- match = match &&
- des.comp[2].depth_minus1 + 1 >= img->comps[2].prec &&
- 1 << des.log2_chroma_w == img->comps[2].dx &&
- 1 << des.log2_chroma_h == img->comps[2].dy;
- case 2:
- match = match &&
- des.comp[1].depth_minus1 + 1 >= img->comps[1].prec &&
- 1 << des.log2_chroma_w == img->comps[1].dx &&
- 1 << des.log2_chroma_h == img->comps[1].dy;
- case 1:
- match = match &&
- des.comp[0].depth_minus1 + 1 >= img->comps[0].prec &&
- 1 == img->comps[0].dx &&
- 1 == img->comps[0].dy;
+ switch (descriptor.nb_components) {
+ case 4: match = match && descriptor.comp[3].depth_minus1 + 1 >= image->comps[3].prec &&
+ 1 == image->comps[3].dx &&
+ 1 == image->comps[3].dy;
+ case 3: match = match && descriptor.comp[2].depth_minus1 + 1 >= image->comps[2].prec &&
+ 1 << descriptor.log2_chroma_w == image->comps[2].dx &&
+ 1 << descriptor.log2_chroma_h == image->comps[2].dy;
+ case 2: match = match && descriptor.comp[1].depth_minus1 + 1 >= image->comps[1].prec &&
+ 1 << descriptor.log2_chroma_w == image->comps[1].dx &&
+ 1 << descriptor.log2_chroma_h == image->comps[1].dy;
+ case 1: match = match && descriptor.comp[0].depth_minus1 + 1 >= image->comps[0].prec &&
+ 1 == image->comps[0].dx &&
+ 1 == image->comps[0].dy;
default:
break;
}
return match;
}
-static enum PixelFormat libopenjpeg_guess_pix_fmt(const opj_image_t *image)
-{
+static inline enum PixelFormat libopenjpeg_guess_pix_fmt(const opj_image_t *image) {
int index;
const enum PixelFormat *possible_fmts = NULL;
int possible_fmts_nb = 0;
switch (image->color_space) {
case CLRSPC_SRGB:
- possible_fmts = rgb_pix_fmts;
- possible_fmts_nb = FF_ARRAY_ELEMS(rgb_pix_fmts);
+ possible_fmts = libopenjpeg_rgb_pix_fmts;
+ possible_fmts_nb = FF_ARRAY_ELEMS(libopenjpeg_rgb_pix_fmts);
break;
case CLRSPC_GRAY:
- possible_fmts = gray_pix_fmts;
- possible_fmts_nb = FF_ARRAY_ELEMS(gray_pix_fmts);
+ possible_fmts = libopenjpeg_gray_pix_fmts;
+ possible_fmts_nb = FF_ARRAY_ELEMS(libopenjpeg_gray_pix_fmts);
break;
case CLRSPC_SYCC:
- possible_fmts = yuv_pix_fmts;
- possible_fmts_nb = FF_ARRAY_ELEMS(yuv_pix_fmts);
+ possible_fmts = libopenjpeg_yuv_pix_fmts;
+ possible_fmts_nb = FF_ARRAY_ELEMS(libopenjpeg_yuv_pix_fmts);
break;
default:
- possible_fmts = any_pix_fmts;
- possible_fmts_nb = FF_ARRAY_ELEMS(any_pix_fmts);
+ possible_fmts = libopenjpeg_all_pix_fmts;
+ possible_fmts_nb = FF_ARRAY_ELEMS(libopenjpeg_all_pix_fmts);
break;
}
return PIX_FMT_NONE;
}
-static inline int libopenjpeg_ispacked(enum PixelFormat pix_fmt)
-{
+static inline int libopenjpeg_ispacked(enum PixelFormat pix_fmt) {
int i, component_plane;
if (pix_fmt == PIX_FMT_GRAY16)
return 1;
}
-static void libopenjpeg_copy_to_packed8(AVFrame *picture, opj_image_t *image)
-{
+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];
}
}
-static void libopenjpeg_copy_to_packed16(AVFrame *picture, opj_image_t *image)
-{
+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);
}
}
-static void libopenjpeg_copyto8(AVFrame *picture, opj_image_t *image)
-{
+static inline void libopenjpeg_copyto8(AVFrame *picture, opj_image_t *image) {
int *comp_data;
uint8_t *img_ptr;
int index, x, y;
}
}
-static void libopenjpeg_copyto16(AVFrame *p, opj_image_t *image)
-{
+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*) (p->data[index] + y * p->linesize[index]);
+ 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++;
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_reduce = ctx->lowres;
ctx->dec_params.cp_layer = ctx->lowqual;
// Tie decoder with decoding parameters
opj_setup_decoder(dec, &ctx->dec_params);
width = image->x1 - image->x0;
height = image->y1 - image->y0;
- if (ctx->lowres) {
- width = (width + (1 << ctx->lowres) - 1) >> ctx->lowres;
- height = (height + (1 << ctx->lowres) - 1) >> ctx->lowres;
- }
-
if (av_image_check_size(width, height, 0, avctx) < 0) {
av_log(avctx, AV_LOG_ERROR,
"%dx%d dimension invalid.\n", width, height);
if (avctx->pix_fmt == PIX_FMT_NONE) {
av_log(avctx, AV_LOG_ERROR, "Unable to determine pixel format\n");
- ret = AVERROR_INVALIDDATA;
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;
}
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);
goto done;
}
- pixel_size =
- av_pix_fmt_descriptors[avctx->pix_fmt].comp[0].step_minus1 + 1;
+ pixel_size = av_pix_fmt_descriptors[avctx->pix_fmt].comp[0].step_minus1 + 1;
ispacked = libopenjpeg_ispacked(avctx->pix_fmt);
switch (pixel_size) {
#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, { 0 }, 0, INT_MAX, VD },
- { "lowres", "Lower the decoding resolution by a power of two", OFFSET(lowres), AV_OPT_TYPE_INT, { 0 }, 0, INT_MAX, VD },
+ { "lowqual", "Limit the number of layers used for decoding", OFFSET(lowqual), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VD },
{ NULL },
};
.close = libopenjpeg_decode_close,
.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,
.init_thread_copy = ONLY_IF_THREADS_ENABLED(libopenjpeg_decode_init_thread_copy),
projects / ffmpeg / blobdiff