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/*
* 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/a64enc.h"
#include "libavcodec/bytestream.h"
#include "avformat.h" |
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#include "rawenc.h" |
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|
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static int a64_write_header(struct AVFormatContext *s)
{ |
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AVCodecContext *avctx = s->streams[0]->codec; |
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uint8_t header[5] = {
0x00, //load
0x40, //address
0x00, //mode
0x00, //charset_lifetime (multi only)
0x00 //fps in 50/fps;
};
switch (avctx->codec->id) { |
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case AV_CODEC_ID_A64_MULTI: |
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header[2] = 0x00; |
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header[3] = AV_RB32(avctx->extradata+0); |
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header[4] = 2;
break; |
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case AV_CODEC_ID_A64_MULTI5: |
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header[2] = 0x01; |
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header[3] = AV_RB32(avctx->extradata+0); |
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header[4] = 3;
break;
default: |
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return AVERROR(EINVAL); |
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} |
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avio_write(s->pb, header, 2); |
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return 0;
}
|
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AVOutputFormat ff_a64_muxer = { |
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.name = "a64",
.long_name = NULL_IF_CONFIG_SMALL("a64 - video for Commodore 64"),
.extensions = "a64, A64", |
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.video_codec = AV_CODEC_ID_A64_MULTI, |
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.write_header = a64_write_header, |
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.write_packet = ff_raw_write_packet, |
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}; |