*/
/**
-* @file
-* JPEG 2000 decoder using libopenjpeg
-*/
+ * @file
+ * JPEG 2000 decoder using libopenjpeg
+ */
+
+#define OPJ_STATIC
+#include <openjpeg.h>
+#include "libavutil/common.h"
#include "libavutil/imgutils.h"
-#include "avcodec.h"
#include "libavutil/intreadwrite.h"
+#include "libavutil/opt.h"
+#include "libavutil/pixfmt.h"
+
+#include "avcodec.h"
+#include "internal.h"
#include "thread.h"
-#define OPJ_STATIC
-#include <openjpeg.h>
#define JP2_SIG_TYPE 0x6A502020
#define JP2_SIG_VALUE 0x0D0A870A
-typedef struct {
+// 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_YA8, \
+ 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_YUV440P, AV_PIX_FMT_YUV444P, \
+ AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, \
+ AV_PIX_FMT_YUV444P9, \
+ AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, \
+ AV_PIX_FMT_YUV444P10, \
+ AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, \
+ AV_PIX_FMT_YUV444P16
+
+#define XYZ_PIXEL_FORMATS AV_PIX_FMT_XYZ12
+
+static const enum AVPixelFormat rgb_pix_fmts[] = {
+ RGB_PIXEL_FORMATS
+};
+static const enum AVPixelFormat gray_pix_fmts[] = {
+ GRAY_PIXEL_FORMATS
+};
+static const enum AVPixelFormat yuv_pix_fmts[] = {
+ YUV_PIXEL_FORMATS
+};
+static const enum AVPixelFormat any_pix_fmts[] = {
+ RGB_PIXEL_FORMATS, GRAY_PIXEL_FORMATS, YUV_PIXEL_FORMATS, XYZ_PIXEL_FORMATS
+};
+
+typedef struct LibOpenJPEGContext {
+ AVClass *class;
opj_dparameters_t dec_params;
- AVFrame image;
+ int lowres;
+ int lowqual;
} LibOpenJPEGContext;
-static int check_image_attributes(opj_image_t *image)
+static int libopenjpeg_matches_pix_fmt(const opj_image_t *img,
+ enum AVPixelFormat pix_fmt)
{
- return image->comps[0].dx == image->comps[1].dx &&
- image->comps[1].dx == image->comps[2].dx &&
- image->comps[0].dy == image->comps[1].dy &&
- image->comps[1].dy == image->comps[2].dy &&
- image->comps[0].prec == image->comps[1].prec &&
- image->comps[1].prec == image->comps[2].prec;
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
+ int match = 1;
+
+ if (desc->nb_components != img->numcomps) {
+ return 0;
+ }
+
+ switch (desc->nb_components) {
+ case 4:
+ match = match &&
+ desc->comp[3].depth >= img->comps[3].prec &&
+ 1 == img->comps[3].dx &&
+ 1 == img->comps[3].dy;
+ case 3:
+ match = match &&
+ desc->comp[2].depth >= img->comps[2].prec &&
+ 1 << desc->log2_chroma_w == img->comps[2].dx &&
+ 1 << desc->log2_chroma_h == img->comps[2].dy;
+ case 2:
+ match = match &&
+ desc->comp[1].depth >= img->comps[1].prec &&
+ 1 << desc->log2_chroma_w == img->comps[1].dx &&
+ 1 << desc->log2_chroma_h == img->comps[1].dy;
+ case 1:
+ match = match &&
+ desc->comp[0].depth >= img->comps[0].prec &&
+ 1 == img->comps[0].dx &&
+ 1 == img->comps[0].dy;
+ default:
+ break;
+ }
+
+ return match;
}
-static av_cold int libopenjpeg_decode_init(AVCodecContext *avctx)
+static enum AVPixelFormat libopenjpeg_guess_pix_fmt(const opj_image_t *image)
{
- LibOpenJPEGContext *ctx = avctx->priv_data;
+ int index;
+ const enum AVPixelFormat *possible_fmts = NULL;
+ int possible_fmts_nb = 0;
- opj_set_default_decoder_parameters(&ctx->dec_params);
- avctx->coded_frame = &ctx->image;
- return 0;
+ switch (image->color_space) {
+ case CLRSPC_SRGB:
+ possible_fmts = rgb_pix_fmts;
+ possible_fmts_nb = FF_ARRAY_ELEMS(rgb_pix_fmts);
+ break;
+ case CLRSPC_GRAY:
+ possible_fmts = gray_pix_fmts;
+ possible_fmts_nb = FF_ARRAY_ELEMS(gray_pix_fmts);
+ break;
+ case CLRSPC_SYCC:
+ possible_fmts = yuv_pix_fmts;
+ possible_fmts_nb = FF_ARRAY_ELEMS(yuv_pix_fmts);
+ break;
+ default:
+ possible_fmts = any_pix_fmts;
+ possible_fmts_nb = FF_ARRAY_ELEMS(any_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 av_cold int libopenjpeg_decode_init_thread_copy(AVCodecContext *avctx)
+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 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 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 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 void libopenjpeg_copyto16(AVFrame *p, 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]);
+ 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;
- avctx->coded_frame = &ctx->image;
+ opj_set_default_decoder_parameters(&ctx->dec_params);
return 0;
}
static int libopenjpeg_decode_frame(AVCodecContext *avctx,
- void *data, int *data_size,
+ void *data, int *got_frame,
AVPacket *avpkt)
{
- uint8_t *buf = avpkt->data;
- int buf_size = avpkt->size;
+ uint8_t *buf = avpkt->data;
+ int buf_size = avpkt->size;
LibOpenJPEGContext *ctx = avctx->priv_data;
- AVFrame *picture = &ctx->image, *output = 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, has_alpha = 0, ret = -1;
- int x, y, index;
- uint8_t *img_ptr;
- int adjust[4];
+ int width, height, ret;
+ int pixel_size = 0;
+ int ispacked = 0;
+ int i;
- *data_size = 0;
+ *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)) {
+ 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 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) {
+ if (!dec) {
av_log(avctx, AV_LOG_ERROR, "Error initializing decoder.\n");
- return -1;
+ return AVERROR_UNKNOWN;
}
- opj_set_event_mgr((opj_common_ptr)dec, NULL, NULL);
+ 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);
- 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");
+ 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;
+ return AVERROR_UNKNOWN;
}
- // Decode the header only
+ // Decode the header only.
image = opj_decode_with_info(dec, stream, NULL);
opj_cio_close(stream);
- if(!image) {
+
+ if (!image) {
av_log(avctx, AV_LOG_ERROR, "Error decoding codestream.\n");
opj_destroy_decompress(dec);
- return -1;
+ return AVERROR_UNKNOWN;
}
+
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);
+
+ if (ctx->lowres) {
+ width = (width + (1 << ctx->lowres) - 1) >> ctx->lowres;
+ height = (height + (1 << ctx->lowres) - 1) >> ctx->lowres;
+ }
+
+ ret = ff_set_dimensions(avctx, width, height);
+ if (ret < 0)
+ goto done;
+
+ 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");
+ ret = AVERROR_INVALIDDATA;
goto done;
}
- avcodec_set_dimensions(avctx, width, height);
-
- switch(image->numcomps)
- {
- case 1: avctx->pix_fmt = PIX_FMT_GRAY8;
- break;
- case 3: if(check_image_attributes(image)) {
- avctx->pix_fmt = PIX_FMT_RGB24;
- } else {
- avctx->pix_fmt = PIX_FMT_GRAY8;
- av_log(avctx, AV_LOG_ERROR, "Only first component will be used.\n");
- }
- break;
- case 4: has_alpha = 1;
- avctx->pix_fmt = PIX_FMT_RGBA;
- break;
- default: av_log(avctx, AV_LOG_ERROR, "%d components unsupported.\n", image->numcomps);
- goto done;
- }
-
- if(picture->data[0])
- ff_thread_release_buffer(avctx, picture);
-
- if(ff_thread_get_buffer(avctx, picture) < 0){
+
+ 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 ((ret = ff_thread_get_buffer(avctx, &frame, 0)) < 0) {
av_log(avctx, AV_LOG_ERROR, "ff_thread_get_buffer() failed\n");
- return -1;
+ goto done;
}
- ff_thread_finish_setup(avctx);
-
ctx->dec_params.cp_limit_decoding = NO_LIMITATION;
- // Tie decoder with decoding parameters
+ // 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;
+ 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");
+ ret = AVERROR_UNKNOWN;
+ goto done;
}
+ opj_image_destroy(image);
// Decode the codestream
image = opj_decode_with_info(dec, stream, NULL);
opj_cio_close(stream);
- for(x = 0; x < image->numcomps; x++) {
- adjust[x] = FFMAX(image->comps[x].prec - 8, 0);
+ if (!image) {
+ av_log(avctx, AV_LOG_ERROR, "Error decoding codestream.\n");
+ ret = AVERROR_UNKNOWN;
+ goto done;
}
- for(y = 0; y < avctx->height; y++) {
- index = y*avctx->width;
- img_ptr = picture->data[0] + y*picture->linesize[0];
- for(x = 0; x < avctx->width; x++, index++) {
- *img_ptr++ = image->comps[0].data[index] >> adjust[0];
- if(image->numcomps > 2 && check_image_attributes(image)) {
- *img_ptr++ = image->comps[1].data[index] >> adjust[1];
- *img_ptr++ = image->comps[2].data[index] >> adjust[2];
- if(has_alpha)
- *img_ptr++ = image->comps[3].data[index] >> adjust[3];
- }
+ desc = av_pix_fmt_desc_get(avctx->pix_fmt);
+ pixel_size = desc->comp[0].step;
+ 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);
+ ret = AVERROR_PATCHWELCOME;
+ goto done;
}
- *output = ctx->image;
- *data_size = sizeof(AVPicture);
- ret = buf_size;
+ *got_frame = 1;
+ ret = buf_size;
done:
opj_image_destroy(image);
return ret;
}
-static av_cold int libopenjpeg_decode_close(AVCodecContext *avctx)
-{
- LibOpenJPEGContext *ctx = avctx->priv_data;
+#define OFFSET(x) offsetof(LibOpenJPEGContext, x)
+#define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
- if(ctx->image.data[0])
- ff_thread_release_buffer(avctx, &ctx->image);
- return 0 ;
-}
+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 },
+ { "lowres", "Lower the decoding resolution by a power of two",
+ OFFSET(lowres), 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 = CODEC_ID_JPEG2000,
- .priv_data_size = sizeof(LibOpenJPEGContext),
- .init = libopenjpeg_decode_init,
- .close = libopenjpeg_decode_close,
- .decode = libopenjpeg_decode_frame,
- .capabilities = CODEC_CAP_DR1 | CODEC_CAP_FRAME_THREADS,
- .long_name = NULL_IF_CONFIG_SMALL("OpenJPEG based JPEG 2000 decoder"),
- .init_thread_copy = ONLY_IF_THREADS_ENABLED(libopenjpeg_decode_init_thread_copy),
+ .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,
+ .priv_class = &class,
};
projects / ffmpeg / blobdiff