GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavcodec/xbmenc.c Lines: 28 31 90.3 %
Date: 2021-04-14 23:45:22 Branches: 10 12 83.3 %

Line Branch Exec Source
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/*
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 * XBM image format
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 *
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 * Copyright (c) 2012 Paul B Mahol
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 *
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 * This file is part of FFmpeg.
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 *
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 * FFmpeg is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 2.1 of the License, or (at your option) any later version.
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 *
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 * FFmpeg is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with FFmpeg; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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 */
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#include "avcodec.h"
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#include "internal.h"
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#include "mathops.h"
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#define ANSI_MIN_READLINE 509
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static int xbm_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
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                            const AVFrame *p, int *got_packet)
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{
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    int i, j, l, commas, ret, size, linesize, lineout, rowsout;
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    uint8_t *ptr, *buf;
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    linesize = lineout = (avctx->width + 7) / 8;
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    commas   = avctx->height * linesize;
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    /* ANSI worst case minimum readline is 509 chars. */
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    rowsout  = avctx->height;
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    if (lineout > (ANSI_MIN_READLINE / 6)) {
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        lineout = ANSI_MIN_READLINE / 6;
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        rowsout = (commas + lineout - 1) / lineout;
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    }
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    size     = rowsout * (lineout * 6 + 1) + 106;
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    if ((ret = ff_alloc_packet2(avctx, pkt, size, 0)) < 0)
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        return ret;
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    buf = pkt->data;
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    ptr = p->data[0];
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    buf += snprintf(buf, 32, "#define image_width %u\n", avctx->width);
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    buf += snprintf(buf, 33, "#define image_height %u\n", avctx->height);
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    buf += snprintf(buf, 39, "static unsigned char image_bits[] = {\n");
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    for (i = 0, l = lineout; i < avctx->height; i++) {
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168467
        for (j = 0; j < linesize; j++) {
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            buf += snprintf(buf, 6, " 0x%02X", ff_reverse[*ptr++]);
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            if (--commas <= 0) {
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                buf += snprintf(buf, 2, "\n");
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                break;
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            }
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            buf += snprintf(buf, 2, ",");
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            if (--l <= 0) {
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                buf += snprintf(buf, 2, "\n");
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                l = lineout;
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            }
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        }
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        ptr += p->linesize[0] - linesize;
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    }
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    buf += snprintf(buf, 5, " };\n");
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    pkt->size   = buf - pkt->data;
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    pkt->flags |= AV_PKT_FLAG_KEY;
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    *got_packet = 1;
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    return 0;
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}
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AVCodec ff_xbm_encoder = {
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    .name         = "xbm",
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    .long_name    = NULL_IF_CONFIG_SMALL("XBM (X BitMap) image"),
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    .type         = AVMEDIA_TYPE_VIDEO,
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    .id           = AV_CODEC_ID_XBM,
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    .encode2      = xbm_encode_frame,
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    .pix_fmts     = (const enum AVPixelFormat[]) { AV_PIX_FMT_MONOWHITE,
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                                                   AV_PIX_FMT_NONE },
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};