0,0 → 1,62 |
/* |
* a64 muxer |
* Copyright (c) 2009 Tobias Bindhammer |
* |
* 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 "libavcodec/avcodec.h" |
#include "libavcodec/bytestream.h" |
#include "avformat.h" |
#include "rawenc.h" |
|
static int a64_write_header(struct AVFormatContext *s) |
{ |
AVCodecContext *avctx = s->streams[0]->codec; |
uint8_t header[5] = { |
0x00, //load |
0x40, //address |
0x00, //mode |
0x00, //charset_lifetime (multi only) |
0x00 //fps in 50/fps; |
}; |
switch (avctx->codec->id) { |
case AV_CODEC_ID_A64_MULTI: |
header[2] = 0x00; |
header[3] = AV_RB32(avctx->extradata+0); |
header[4] = 2; |
break; |
case AV_CODEC_ID_A64_MULTI5: |
header[2] = 0x01; |
header[3] = AV_RB32(avctx->extradata+0); |
header[4] = 3; |
break; |
default: |
return AVERROR(EINVAL); |
} |
avio_write(s->pb, header, 2); |
return 0; |
} |
|
AVOutputFormat ff_a64_muxer = { |
.name = "a64", |
.long_name = NULL_IF_CONFIG_SMALL("a64 - video for Commodore 64"), |
.extensions = "a64, A64", |
.video_codec = AV_CODEC_ID_A64_MULTI, |
.write_header = a64_write_header, |
.write_packet = ff_raw_write_packet, |
}; |