diff options
Diffstat (limited to 'libavcodec/pcxenc.c')
| -rw-r--r-- | libavcodec/pcxenc.c | 32 |
1 files changed, 21 insertions, 11 deletions
diff --git a/libavcodec/pcxenc.c b/libavcodec/pcxenc.c index 7fc0d9cc76..6135944c31 100644 --- a/libavcodec/pcxenc.c +++ b/libavcodec/pcxenc.c @@ -2,20 +2,20 @@ * PC Paintbrush PCX (.pcx) image encoder * Copyright (c) 2009 Daniel Verkamp <daniel at drv.nu> * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * 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. * - * Libav is distributed in the hope that it will be useful, + * 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 Libav; if not, write to the Free Software + * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ @@ -23,11 +23,12 @@ * @file * PCX image encoder * @author Daniel Verkamp - * @see http://www.qzx.com/pc-gpe/pcx.txt + * @see http://bespin.org/~qz/pc-gpe/pcx.txt */ #include "avcodec.h" #include "bytestream.h" +#include "libavutil/imgutils.h" #include "internal.h" static const uint32_t monoblack_pal[16] = { 0x000000, 0xFFFFFF }; @@ -100,8 +101,9 @@ static int pcx_encode_frame(AVCodecContext *avctx, AVPacket *pkt, const uint8_t *buf_end; uint8_t *buf; - int bpp, nplanes, i, y, line_bytes, written, ret, max_pkt_size; + int bpp, nplanes, i, y, line_bytes, written, ret, max_pkt_size, sw, sh; const uint32_t *pal = NULL; + uint32_t palette256[256]; const uint8_t *src; if (avctx->width > 65535 || avctx->height > 65535) { @@ -119,6 +121,11 @@ static int pcx_encode_frame(AVCodecContext *avctx, AVPacket *pkt, case AV_PIX_FMT_RGB4_BYTE: case AV_PIX_FMT_BGR4_BYTE: case AV_PIX_FMT_GRAY8: + bpp = 8; + nplanes = 1; + avpriv_set_systematic_pal2(palette256, avctx->pix_fmt); + pal = palette256; + break; case AV_PIX_FMT_PAL8: bpp = 8; nplanes = 1; @@ -138,13 +145,16 @@ static int pcx_encode_frame(AVCodecContext *avctx, AVPacket *pkt, line_bytes = (line_bytes + 1) & ~1; max_pkt_size = 128 + avctx->height * 2 * line_bytes * nplanes + (pal ? 256*3 + 1 : 0); - if ((ret = ff_alloc_packet(pkt, max_pkt_size)) < 0) { - av_log(avctx, AV_LOG_ERROR, "Error getting output packet of size %d.\n", max_pkt_size); + if ((ret = ff_alloc_packet2(avctx, pkt, max_pkt_size, 0)) < 0) return ret; - } buf = pkt->data; buf_end = pkt->data + pkt->size; + sw = avctx->sample_aspect_ratio.num; + sh = avctx->sample_aspect_ratio.den; + if (sw > 0xFFFFu || sh > 0xFFFFu) + av_reduce(&sw, &sh, sw, sh, 0xFFFFu); + bytestream_put_byte(&buf, 10); // manufacturer bytestream_put_byte(&buf, 5); // version bytestream_put_byte(&buf, 1); // encoding @@ -153,8 +163,8 @@ static int pcx_encode_frame(AVCodecContext *avctx, AVPacket *pkt, bytestream_put_le16(&buf, 0); // y min bytestream_put_le16(&buf, avctx->width - 1); // x max bytestream_put_le16(&buf, avctx->height - 1); // y max - bytestream_put_le16(&buf, 0); // horizontal DPI - bytestream_put_le16(&buf, 0); // vertical DPI + bytestream_put_le16(&buf, sw); // horizontal DPI + bytestream_put_le16(&buf, sh); // vertical DPI for (i = 0; i < 16; i++) bytestream_put_be24(&buf, pal ? pal[i] : 0);// palette (<= 16 color only) bytestream_put_byte(&buf, 0); // reserved |