4 * Copyright (c) 2012 Paul B Mahol
6 * This file is part of FFmpeg.
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
27 static int xbm_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
28 const AVFrame *p, int *got_packet)
30 int i, j, commas, ret, size, linesize;
33 linesize = (avctx->width + 7) / 8;
34 commas = avctx->height * linesize;
35 size = avctx->height * (linesize * 6 + 1) + 106;
36 if ((ret = ff_alloc_packet2(avctx, pkt, size, 0)) < 0)
42 buf += snprintf(buf, 32, "#define image_width %u\n", avctx->width);
43 buf += snprintf(buf, 33, "#define image_height %u\n", avctx->height);
44 buf += snprintf(buf, 39, "static unsigned char image_bits[] = {\n");
45 for (i = 0; i < avctx->height; i++) {
46 for (j = 0; j < linesize; j++) {
47 buf += snprintf(buf, 6, " 0x%02X", ff_reverse[*ptr++]);
49 buf += snprintf(buf, 2, ",");
51 ptr += p->linesize[0] - linesize;
52 buf += snprintf(buf, 2, "\n");
54 buf += snprintf(buf, 5, " };\n");
56 pkt->size = buf - pkt->data;
57 pkt->flags |= AV_PKT_FLAG_KEY;
62 AVCodec ff_xbm_encoder = {
64 .long_name = NULL_IF_CONFIG_SMALL("XBM (X BitMap) image"),
65 .type = AVMEDIA_TYPE_VIDEO,
66 .id = AV_CODEC_ID_XBM,
67 .encode2 = xbm_encode_frame,
68 .pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_MONOWHITE,