yading@11: /*
yading@11:  * a64 muxer
yading@11:  * Copyright (c) 2009 Tobias Bindhammer
yading@11:  *
yading@11:  * This file is part of FFmpeg.
yading@11:  *
yading@11:  * FFmpeg is free software; you can redistribute it and/or
yading@11:  * modify it under the terms of the GNU Lesser General Public
yading@11:  * License as published by the Free Software Foundation; either
yading@11:  * version 2.1 of the License, or (at your option) any later version.
yading@11:  *
yading@11:  * FFmpeg is distributed in the hope that it will be useful,
yading@11:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
yading@11:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
yading@11:  * Lesser General Public License for more details.
yading@11:  *
yading@11:  * You should have received a copy of the GNU Lesser General Public
yading@11:  * License along with FFmpeg; if not, write to the Free Software
yading@11:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
yading@11:  */
yading@11: 
yading@11: #include "libavcodec/avcodec.h"
yading@11: #include "libavcodec/bytestream.h"
yading@11: #include "avformat.h"
yading@11: #include "rawenc.h"
yading@11: 
yading@11: static int a64_write_header(struct AVFormatContext *s)
yading@11: {
yading@11:     AVCodecContext *avctx = s->streams[0]->codec;
yading@11:     uint8_t header[5] = {
yading@11:         0x00, //load
yading@11:         0x40, //address
yading@11:         0x00, //mode
yading@11:         0x00, //charset_lifetime (multi only)
yading@11:         0x00  //fps in 50/fps;
yading@11:     };
yading@11:     switch (avctx->codec->id) {
yading@11:     case AV_CODEC_ID_A64_MULTI:
yading@11:         header[2] = 0x00;
yading@11:         header[3] = AV_RB32(avctx->extradata+0);
yading@11:         header[4] = 2;
yading@11:         break;
yading@11:     case AV_CODEC_ID_A64_MULTI5:
yading@11:         header[2] = 0x01;
yading@11:         header[3] = AV_RB32(avctx->extradata+0);
yading@11:         header[4] = 3;
yading@11:         break;
yading@11:     default:
yading@11:         return AVERROR(EINVAL);
yading@11:     }
yading@11:     avio_write(s->pb, header, 2);
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: AVOutputFormat ff_a64_muxer = {
yading@11:     .name           = "a64",
yading@11:     .long_name      = NULL_IF_CONFIG_SMALL("a64 - video for Commodore 64"),
yading@11:     .extensions     = "a64, A64",
yading@11:     .video_codec    = AV_CODEC_ID_A64_MULTI,
yading@11:     .write_header   = a64_write_header,
yading@11:     .write_packet   = ff_raw_write_packet,
yading@11: };