2012-01-21 17:45:52 +00:00
|
|
|
/*
|
|
|
|
* XWD image format
|
|
|
|
*
|
|
|
|
* Copyright (c) 2012 Paul B Mahol
|
|
|
|
*
|
2012-06-29 01:55:56 +00:00
|
|
|
* This file is part of FFmpeg.
|
2012-01-21 17:45:52 +00:00
|
|
|
*
|
2012-06-29 01:55:56 +00:00
|
|
|
* FFmpeg is free software; you can redistribute it and/or
|
2012-01-21 17:45:52 +00:00
|
|
|
* 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.
|
|
|
|
*
|
2012-06-29 01:55:56 +00:00
|
|
|
* FFmpeg is distributed in the hope that it will be useful,
|
2012-01-21 17:45:52 +00:00
|
|
|
* 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
|
2012-06-29 01:55:56 +00:00
|
|
|
* License along with FFmpeg; if not, write to the Free Software
|
2012-01-21 17:45:52 +00:00
|
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
|
|
*/
|
|
|
|
|
2014-03-13 11:13:33 +00:00
|
|
|
#include <inttypes.h>
|
|
|
|
|
2012-01-21 17:45:52 +00:00
|
|
|
#include "libavutil/imgutils.h"
|
|
|
|
#include "avcodec.h"
|
|
|
|
#include "bytestream.h"
|
2012-11-10 12:22:56 +00:00
|
|
|
#include "internal.h"
|
2012-01-21 17:45:52 +00:00
|
|
|
#include "xwd.h"
|
|
|
|
|
|
|
|
static int xwd_decode_frame(AVCodecContext *avctx, void *data,
|
2012-11-13 18:35:22 +00:00
|
|
|
int *got_frame, AVPacket *avpkt)
|
2012-01-21 17:45:52 +00:00
|
|
|
{
|
2012-11-21 20:34:46 +00:00
|
|
|
AVFrame *p = data;
|
2012-01-21 17:45:52 +00:00
|
|
|
const uint8_t *buf = avpkt->data;
|
|
|
|
int i, ret, buf_size = avpkt->size;
|
|
|
|
uint32_t version, header_size, vclass, ncolors;
|
|
|
|
uint32_t xoffset, be, bpp, lsize, rsize;
|
|
|
|
uint32_t pixformat, pixdepth, bunit, bitorder, bpad;
|
|
|
|
uint32_t rgb[3];
|
|
|
|
uint8_t *ptr;
|
2018-06-07 22:42:31 +00:00
|
|
|
int width, height;
|
2012-03-17 19:24:11 +00:00
|
|
|
GetByteContext gb;
|
2012-01-21 17:45:52 +00:00
|
|
|
|
|
|
|
if (buf_size < XWD_HEADER_SIZE)
|
|
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
|
2012-03-17 19:24:11 +00:00
|
|
|
bytestream2_init(&gb, buf, buf_size);
|
|
|
|
header_size = bytestream2_get_be32u(&gb);
|
2012-01-21 17:45:52 +00:00
|
|
|
|
2012-03-17 19:24:11 +00:00
|
|
|
version = bytestream2_get_be32u(&gb);
|
2012-01-21 17:45:52 +00:00
|
|
|
if (version != XWD_VERSION) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "unsupported version\n");
|
|
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
}
|
|
|
|
|
2012-03-17 19:24:11 +00:00
|
|
|
if (buf_size < header_size || header_size < XWD_HEADER_SIZE) {
|
2012-01-21 17:45:52 +00:00
|
|
|
av_log(avctx, AV_LOG_ERROR, "invalid header size\n");
|
|
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
}
|
|
|
|
|
2012-03-17 19:24:11 +00:00
|
|
|
pixformat = bytestream2_get_be32u(&gb);
|
|
|
|
pixdepth = bytestream2_get_be32u(&gb);
|
2018-06-07 22:42:31 +00:00
|
|
|
width = bytestream2_get_be32u(&gb);
|
|
|
|
height = bytestream2_get_be32u(&gb);
|
2012-03-17 19:24:11 +00:00
|
|
|
xoffset = bytestream2_get_be32u(&gb);
|
|
|
|
be = bytestream2_get_be32u(&gb);
|
|
|
|
bunit = bytestream2_get_be32u(&gb);
|
|
|
|
bitorder = bytestream2_get_be32u(&gb);
|
|
|
|
bpad = bytestream2_get_be32u(&gb);
|
|
|
|
bpp = bytestream2_get_be32u(&gb);
|
|
|
|
lsize = bytestream2_get_be32u(&gb);
|
|
|
|
vclass = bytestream2_get_be32u(&gb);
|
|
|
|
rgb[0] = bytestream2_get_be32u(&gb);
|
|
|
|
rgb[1] = bytestream2_get_be32u(&gb);
|
|
|
|
rgb[2] = bytestream2_get_be32u(&gb);
|
|
|
|
bytestream2_skipu(&gb, 8);
|
|
|
|
ncolors = bytestream2_get_be32u(&gb);
|
|
|
|
bytestream2_skipu(&gb, header_size - (XWD_HEADER_SIZE - 20));
|
2012-01-21 17:45:52 +00:00
|
|
|
|
2018-06-07 22:42:31 +00:00
|
|
|
if ((ret = ff_set_dimensions(avctx, width, height)) < 0)
|
|
|
|
return ret;
|
|
|
|
|
2014-03-13 11:13:33 +00:00
|
|
|
av_log(avctx, AV_LOG_DEBUG,
|
|
|
|
"pixformat %"PRIu32", pixdepth %"PRIu32", bunit %"PRIu32", bitorder %"PRIu32", bpad %"PRIu32"\n",
|
2012-01-21 17:45:52 +00:00
|
|
|
pixformat, pixdepth, bunit, bitorder, bpad);
|
2014-03-13 11:13:33 +00:00
|
|
|
av_log(avctx, AV_LOG_DEBUG,
|
|
|
|
"vclass %"PRIu32", ncolors %"PRIu32", bpp %"PRIu32", be %"PRIu32", lsize %"PRIu32", xoffset %"PRIu32"\n",
|
2012-01-21 17:45:52 +00:00
|
|
|
vclass, ncolors, bpp, be, lsize, xoffset);
|
2014-04-01 18:19:59 +00:00
|
|
|
av_log(avctx, AV_LOG_DEBUG,
|
|
|
|
"red %0"PRIx32", green %0"PRIx32", blue %0"PRIx32"\n",
|
|
|
|
rgb[0], rgb[1], rgb[2]);
|
2012-01-21 17:45:52 +00:00
|
|
|
|
|
|
|
if (pixformat > XWD_Z_PIXMAP) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "invalid pixmap format\n");
|
|
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (pixdepth == 0 || pixdepth > 32) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "invalid pixmap depth\n");
|
|
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (xoffset) {
|
2014-03-13 11:13:33 +00:00
|
|
|
avpriv_request_sample(avctx, "xoffset %"PRIu32"", xoffset);
|
2012-01-21 17:45:52 +00:00
|
|
|
return AVERROR_PATCHWELCOME;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (be > 1) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "invalid byte order\n");
|
|
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (bitorder > 1) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "invalid bitmap bit order\n");
|
|
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (bunit != 8 && bunit != 16 && bunit != 32) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "invalid bitmap unit\n");
|
|
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (bpad != 8 && bpad != 16 && bpad != 32) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "invalid bitmap scan-line pad\n");
|
|
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (bpp == 0 || bpp > 32) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "invalid bits per pixel\n");
|
|
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (ncolors > 256) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "invalid number of entries in colormap\n");
|
|
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((ret = av_image_check_size(avctx->width, avctx->height, 0, NULL)) < 0)
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
rsize = FFALIGN(avctx->width * bpp, bpad) / 8;
|
|
|
|
if (lsize < rsize) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "invalid bytes per scan-line\n");
|
|
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
}
|
|
|
|
|
2015-12-18 18:28:51 +00:00
|
|
|
if (bytestream2_get_bytes_left(&gb) < ncolors * XWD_CMAP_SIZE + (uint64_t)avctx->height * lsize) {
|
2012-01-21 17:45:52 +00:00
|
|
|
av_log(avctx, AV_LOG_ERROR, "input buffer too small\n");
|
|
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (pixformat != XWD_Z_PIXMAP) {
|
2014-03-22 17:43:40 +00:00
|
|
|
avpriv_report_missing_feature(avctx, "Pixmap format %"PRIu32, pixformat);
|
2012-01-21 17:45:52 +00:00
|
|
|
return AVERROR_PATCHWELCOME;
|
|
|
|
}
|
|
|
|
|
2012-10-06 10:10:34 +00:00
|
|
|
avctx->pix_fmt = AV_PIX_FMT_NONE;
|
2012-01-21 17:45:52 +00:00
|
|
|
switch (vclass) {
|
|
|
|
case XWD_STATIC_GRAY:
|
|
|
|
case XWD_GRAY_SCALE:
|
2012-06-24 11:34:02 +00:00
|
|
|
if (bpp != 1 && bpp != 8)
|
2012-01-21 17:45:52 +00:00
|
|
|
return AVERROR_INVALIDDATA;
|
2017-05-07 16:50:49 +00:00
|
|
|
if (bpp == 1 && pixdepth == 1) {
|
2012-10-06 10:10:34 +00:00
|
|
|
avctx->pix_fmt = AV_PIX_FMT_MONOWHITE;
|
2017-05-07 16:50:49 +00:00
|
|
|
} else if (bpp == 8 && pixdepth == 8) {
|
2012-10-08 18:54:00 +00:00
|
|
|
avctx->pix_fmt = AV_PIX_FMT_GRAY8;
|
2012-06-24 11:34:02 +00:00
|
|
|
}
|
2012-01-21 17:45:52 +00:00
|
|
|
break;
|
|
|
|
case XWD_STATIC_COLOR:
|
|
|
|
case XWD_PSEUDO_COLOR:
|
|
|
|
if (bpp == 8)
|
2012-10-06 10:10:34 +00:00
|
|
|
avctx->pix_fmt = AV_PIX_FMT_PAL8;
|
2012-01-21 17:45:52 +00:00
|
|
|
break;
|
|
|
|
case XWD_TRUE_COLOR:
|
|
|
|
case XWD_DIRECT_COLOR:
|
|
|
|
if (bpp != 16 && bpp != 24 && bpp != 32)
|
|
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
if (bpp == 16 && pixdepth == 15) {
|
|
|
|
if (rgb[0] == 0x7C00 && rgb[1] == 0x3E0 && rgb[2] == 0x1F)
|
2012-10-06 10:10:34 +00:00
|
|
|
avctx->pix_fmt = be ? AV_PIX_FMT_RGB555BE : AV_PIX_FMT_RGB555LE;
|
2012-01-21 17:45:52 +00:00
|
|
|
else if (rgb[0] == 0x1F && rgb[1] == 0x3E0 && rgb[2] == 0x7C00)
|
2012-10-06 10:10:34 +00:00
|
|
|
avctx->pix_fmt = be ? AV_PIX_FMT_BGR555BE : AV_PIX_FMT_BGR555LE;
|
2012-01-21 17:45:52 +00:00
|
|
|
} else if (bpp == 16 && pixdepth == 16) {
|
|
|
|
if (rgb[0] == 0xF800 && rgb[1] == 0x7E0 && rgb[2] == 0x1F)
|
2012-10-06 10:10:34 +00:00
|
|
|
avctx->pix_fmt = be ? AV_PIX_FMT_RGB565BE : AV_PIX_FMT_RGB565LE;
|
2012-01-21 17:45:52 +00:00
|
|
|
else if (rgb[0] == 0x1F && rgb[1] == 0x7E0 && rgb[2] == 0xF800)
|
2012-10-06 10:10:34 +00:00
|
|
|
avctx->pix_fmt = be ? AV_PIX_FMT_BGR565BE : AV_PIX_FMT_BGR565LE;
|
2012-01-21 17:45:52 +00:00
|
|
|
} else if (bpp == 24) {
|
|
|
|
if (rgb[0] == 0xFF0000 && rgb[1] == 0xFF00 && rgb[2] == 0xFF)
|
2012-10-06 10:10:34 +00:00
|
|
|
avctx->pix_fmt = be ? AV_PIX_FMT_RGB24 : AV_PIX_FMT_BGR24;
|
2012-01-21 17:45:52 +00:00
|
|
|
else if (rgb[0] == 0xFF && rgb[1] == 0xFF00 && rgb[2] == 0xFF0000)
|
2012-10-06 10:10:34 +00:00
|
|
|
avctx->pix_fmt = be ? AV_PIX_FMT_BGR24 : AV_PIX_FMT_RGB24;
|
2012-01-21 17:45:52 +00:00
|
|
|
} else if (bpp == 32) {
|
|
|
|
if (rgb[0] == 0xFF0000 && rgb[1] == 0xFF00 && rgb[2] == 0xFF)
|
2012-10-06 10:10:34 +00:00
|
|
|
avctx->pix_fmt = be ? AV_PIX_FMT_ARGB : AV_PIX_FMT_BGRA;
|
2012-01-21 17:45:52 +00:00
|
|
|
else if (rgb[0] == 0xFF && rgb[1] == 0xFF00 && rgb[2] == 0xFF0000)
|
2012-10-06 10:10:34 +00:00
|
|
|
avctx->pix_fmt = be ? AV_PIX_FMT_ABGR : AV_PIX_FMT_RGBA;
|
2012-01-21 17:45:52 +00:00
|
|
|
}
|
2012-03-17 19:24:11 +00:00
|
|
|
bytestream2_skipu(&gb, ncolors * XWD_CMAP_SIZE);
|
2012-01-21 17:45:52 +00:00
|
|
|
break;
|
|
|
|
default:
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "invalid visual class\n");
|
|
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
}
|
|
|
|
|
2012-10-06 10:10:34 +00:00
|
|
|
if (avctx->pix_fmt == AV_PIX_FMT_NONE) {
|
2013-03-13 20:17:05 +00:00
|
|
|
avpriv_request_sample(avctx,
|
2014-03-13 11:13:33 +00:00
|
|
|
"Unknown file: bpp %"PRIu32", pixdepth %"PRIu32", vclass %"PRIu32"",
|
2013-03-13 20:17:05 +00:00
|
|
|
bpp, pixdepth, vclass);
|
2012-01-21 17:45:52 +00:00
|
|
|
return AVERROR_PATCHWELCOME;
|
|
|
|
}
|
|
|
|
|
lavc: factorize ff_{thread_,re,}get_buffer error messages.
Coccinelle profile used:
@@
expression r, ctx, f, loglevel, str, flags;
@@
-if ((r = ff_get_buffer(ctx, f, flags)) < 0) {
- av_log(ctx, loglevel, str);
- return r;
-}
+if ((r = ff_get_buffer(ctx, f, flags)) < 0)
+ return r;
@@
expression r, ctx, f, loglevel, str;
@@
-if ((r = ff_reget_buffer(ctx, f)) < 0) {
- av_log(ctx, loglevel, str);
- return r;
-}
+if ((r = ff_reget_buffer(ctx, f)) < 0)
+ return r;
@@
expression r, ctx, f, loglevel, str, flags;
@@
-if ((r = ff_thread_get_buffer(ctx, f, flags)) < 0) {
- av_log(ctx, loglevel, str);
- return r;
-}
+if ((r = ff_thread_get_buffer(ctx, f, flags)) < 0)
+ return r;
...along with some manual patches for the remaining ones.
2013-03-12 07:41:53 +00:00
|
|
|
if ((ret = ff_get_buffer(avctx, p, 0)) < 0)
|
2012-01-21 17:45:52 +00:00
|
|
|
return ret;
|
|
|
|
|
|
|
|
p->key_frame = 1;
|
|
|
|
p->pict_type = AV_PICTURE_TYPE_I;
|
|
|
|
|
2012-10-06 10:10:34 +00:00
|
|
|
if (avctx->pix_fmt == AV_PIX_FMT_PAL8) {
|
2012-01-21 17:45:52 +00:00
|
|
|
uint32_t *dst = (uint32_t *)p->data[1];
|
|
|
|
uint8_t red, green, blue;
|
|
|
|
|
|
|
|
for (i = 0; i < ncolors; i++) {
|
|
|
|
|
2012-03-17 19:24:11 +00:00
|
|
|
bytestream2_skipu(&gb, 4); // skip colormap entry number
|
|
|
|
red = bytestream2_get_byteu(&gb);
|
|
|
|
bytestream2_skipu(&gb, 1);
|
|
|
|
green = bytestream2_get_byteu(&gb);
|
|
|
|
bytestream2_skipu(&gb, 1);
|
|
|
|
blue = bytestream2_get_byteu(&gb);
|
|
|
|
bytestream2_skipu(&gb, 3); // skip bitmask flag and padding
|
2012-01-21 17:45:52 +00:00
|
|
|
|
2018-05-06 16:18:19 +00:00
|
|
|
dst[i] = 0xFFU << 24 | red << 16 | green << 8 | blue;
|
2012-01-21 17:45:52 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
ptr = p->data[0];
|
|
|
|
for (i = 0; i < avctx->height; i++) {
|
2012-03-17 19:24:11 +00:00
|
|
|
bytestream2_get_bufferu(&gb, ptr, rsize);
|
|
|
|
bytestream2_skipu(&gb, lsize - rsize);
|
2012-01-21 17:45:52 +00:00
|
|
|
ptr += p->linesize[0];
|
|
|
|
}
|
|
|
|
|
2012-11-13 18:35:22 +00:00
|
|
|
*got_frame = 1;
|
2012-01-21 17:45:52 +00:00
|
|
|
|
|
|
|
return buf_size;
|
|
|
|
}
|
|
|
|
|
|
|
|
AVCodec ff_xwd_decoder = {
|
|
|
|
.name = "xwd",
|
2013-10-03 20:57:53 +00:00
|
|
|
.long_name = NULL_IF_CONFIG_SMALL("XWD (X Window Dump) image"),
|
2012-01-21 17:45:52 +00:00
|
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
2012-08-05 09:11:04 +00:00
|
|
|
.id = AV_CODEC_ID_XWD,
|
2012-01-21 17:45:52 +00:00
|
|
|
.decode = xwd_decode_frame,
|
2015-07-07 00:41:27 +00:00
|
|
|
.capabilities = AV_CODEC_CAP_DR1,
|
2012-01-21 17:45:52 +00:00
|
|
|
};
|