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avformat: add image2 alias pix demuxer

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Reviewed-by: wm4 <nfxjfg@googlemail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-03-28 17:23:32 +01:00
parent 067a9cf81a
commit 13bcb4de33
3 changed files with 53 additions and 0 deletions
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1
libavformat/Makefile
View File

@ -182,6 +182,7 @@ OBJS-$(CONFIG_IMAGE2_DEMUXER) += img2dec.o img2.o
OBJS-$(CONFIG_IMAGE2_MUXER) += img2enc.o img2.o
OBJS-$(CONFIG_IMAGE2PIPE_DEMUXER) += img2dec.o img2.o
OBJS-$(CONFIG_IMAGE2PIPE_MUXER) += img2enc.o img2.o
OBJS-$(CONFIG_IMAGE2_ALIAS_PIX_DEMUXER) += img2_alias_pix.o
OBJS-$(CONFIG_INGENIENT_DEMUXER) += ingenientdec.o rawdec.o
OBJS-$(CONFIG_IPMOVIE_DEMUXER) += ipmovie.o
OBJS-$(CONFIG_IRCAM_DEMUXER) += ircamdec.o ircam.o pcm.o

1
libavformat/allformats.c
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@ -146,6 +146,7 @@ void av_register_all(void)
REGISTER_MUXDEMUX(ILBC, ilbc);
REGISTER_MUXDEMUX(IMAGE2, image2);
REGISTER_MUXDEMUX(IMAGE2PIPE, image2pipe);
REGISTER_DEMUXER (IMAGE2_ALIAS_PIX, image2_alias_pix);
REGISTER_DEMUXER (INGENIENT, ingenient);
REGISTER_DEMUXER (IPMOVIE, ipmovie);
REGISTER_MUXER (IPOD, ipod);

51
libavformat/img2_alias_pix.c Normal file
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@ -0,0 +1,51 @@
/*
* Alias PIX image demuxer
* Copyright (c) 2014 Michael Niedermayer
*
* 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 "img2.h"
#include "libavutil/intreadwrite.h"
static int brender_read_probe(AVProbeData *p)
{
int width = AV_RB16(p->buf);
int height = AV_RB16(p->buf+2);
int ox = AV_RB16(p->buf+4);
int oy = AV_RB16(p->buf+6);
int bpp = AV_RB16(p->buf+8);
int count = p->buf[10];
if (!count || !height || count > width)
return 0;
if (bpp != 24 && bpp != 8)
return 0;
return AVPROBE_SCORE_EXTENSION + 1;
}
AVInputFormat ff_image2_alias_pix_demuxer = {
.name = "alias_pix",
.long_name = NULL_IF_CONFIG_SMALL("Alias/Wavefront PIX image"),
.priv_data_size = sizeof(VideoDemuxData),
.read_probe = brender_read_probe,
.read_header = ff_img_read_header,
.read_packet = ff_img_read_packet,
.raw_codec_id = AV_CODEC_ID_ALIAS_PIX,
};