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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 2012-07-24 19:43:06 +02:00 committed by Luca Barbato
parent 92566540c3
commit 44dc9c6af0
1 changed files with 246 additions and 51 deletions
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297
libavcodec/libopenjpegdec.c
View File

@ -27,8 +27,9 @@
#define OPJ_STATIC
#include <openjpeg.h>
#include "libavutil/imgutils.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/imgutils.h"
#include "libavutil/pixfmt.h"
#include "libavutil/opt.h"
#include "avcodec.h"
#include "thread.h"
@ -36,6 +37,32 @@
#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 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};
typedef struct {
AVClass *class;
opj_dparameters_t dec_params;
@ -44,14 +71,165 @@ typedef struct {
int lowqual;
} LibOpenJPEGContext;
static int check_image_attributes(opj_image_t *image)
static int libopenjpeg_matches_pix_fmt(const opj_image_t *img,
enum PixelFormat 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;
AVPixFmtDescriptor des = av_pix_fmt_descriptors[pix_fmt];
int match = 1;
if (des.nb_components != img->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;
default:
break;
}
return match;
}
static 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);
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 PIX_FMT_NONE;
}
static inline int libopenjpeg_ispacked(enum PixelFormat pix_fmt)
{
int i, component_plane;
if (pix_fmt == PIX_FMT_GRAY16)
return 0;
component_plane = av_pix_fmt_descriptors[pix_fmt].comp[0].plane;
for (i = 1; i < av_pix_fmt_descriptors[pix_fmt].nb_components; i++) {
if (component_plane != av_pix_fmt_descriptors[pix_fmt].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)
@ -59,6 +237,7 @@ static av_cold int libopenjpeg_decode_init(AVCodecContext *avctx)
LibOpenJPEGContext *ctx = avctx->priv_data;
opj_set_default_decoder_parameters(&ctx->dec_params);
avcodec_get_frame_defaults(&ctx->image);
avctx->coded_frame = &ctx->image;
return 0;
}
@ -82,10 +261,10 @@ static int libopenjpeg_decode_frame(AVCodecContext *avctx,
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 = -1;
int pixel_size = 0;
int ispacked = 0;
int i;
*data_size = 0;
@ -148,39 +327,31 @@ static int libopenjpeg_decode_frame(AVCodecContext *avctx,
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);
if (avctx->pix_fmt != PIX_FMT_NONE)
if (!libopenjpeg_matches_pix_fmt(image, avctx->pix_fmt))
avctx->pix_fmt = PIX_FMT_NONE;
if (avctx->pix_fmt == PIX_FMT_NONE)
avctx->pix_fmt = libopenjpeg_guess_pix_fmt(image);
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;
if (picture->data[0])
ff_thread_release_buffer(avctx, picture);
if (ff_thread_get_buffer(avctx, picture) < 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.
opj_setup_decoder(dec, &ctx->dec_params);
@ -188,29 +359,53 @@ static int libopenjpeg_decode_frame(AVCodecContext *avctx,
if (!stream) {
av_log(avctx, AV_LOG_ERROR,
"Codestream could not be opened for reading.\n");
opj_destroy_decompress(dec);
return -1;
goto done;
}
// Decode the codestream.
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");
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];
}
pixel_size =
av_pix_fmt_descriptors[avctx->pix_fmt].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;
}
*output = ctx->image;