67 lines
2.2 KiB
C
Executable File
67 lines
2.2 KiB
C
Executable File
/*
|
|
* XBM image format
|
|
*
|
|
* Copyright (c) 2012 Paul B Mahol
|
|
*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* 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.
|
|
*
|
|
* 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 FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include "avcodec.h"
|
|
#include "internal.h"
|
|
#include "mathops.h"
|
|
|
|
static int xbm_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
|
|
const AVFrame *p, int *got_packet)
|
|
{
|
|
int i, j, ret, size, linesize;
|
|
uint8_t *ptr, *buf;
|
|
|
|
linesize = (avctx->width + 7) / 8;
|
|
size = avctx->height * (linesize * 7 + 2) + 110;
|
|
if ((ret = ff_alloc_packet2(avctx, pkt, size, 0)) < 0)
|
|
return ret;
|
|
|
|
buf = pkt->data;
|
|
ptr = p->data[0];
|
|
|
|
buf += snprintf(buf, 32, "#define image_width %u\n", avctx->width);
|
|
buf += snprintf(buf, 33, "#define image_height %u\n", avctx->height);
|
|
buf += snprintf(buf, 40, "static unsigned char image_bits[] = {\n");
|
|
for (i = 0; i < avctx->height; i++) {
|
|
for (j = 0; j < linesize; j++)
|
|
buf += snprintf(buf, 7, " 0x%02X,", ff_reverse[*ptr++]);
|
|
ptr += p->linesize[0] - linesize;
|
|
buf += snprintf(buf, 2, "\n");
|
|
}
|
|
buf += snprintf(buf, 5, " };\n");
|
|
|
|
pkt->size = buf - pkt->data;
|
|
pkt->flags |= AV_PKT_FLAG_KEY;
|
|
*got_packet = 1;
|
|
return 0;
|
|
}
|
|
|
|
AVCodec ff_xbm_encoder = {
|
|
.name = "xbm",
|
|
.long_name = NULL_IF_CONFIG_SMALL("XBM (X BitMap) image"),
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.id = AV_CODEC_ID_XBM,
|
|
.encode2 = xbm_encode_frame,
|
|
.pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_MONOWHITE,
|
|
AV_PIX_FMT_NONE },
|
|
};
|