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| Rev | Author | Line No. | Line |
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| 4349 | Serge | 1 | /* |
| 2 | * a64 muxer |
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| 3 | * Copyright (c) 2009 Tobias Bindhammer |
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| 4 | * |
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| 5 | * This file is part of FFmpeg. |
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| 6 | * |
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| 7 | * FFmpeg is free software; you can redistribute it and/or |
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| 8 | * modify it under the terms of the GNU Lesser General Public |
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| 9 | * License as published by the Free Software Foundation; either |
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| 10 | * version 2.1 of the License, or (at your option) any later version. |
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| 11 | * |
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| 12 | * FFmpeg is distributed in the hope that it will be useful, |
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 15 | * Lesser General Public License for more details. |
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| 16 | * |
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| 17 | * You should have received a copy of the GNU Lesser General Public |
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| 18 | * License along with FFmpeg; if not, write to the Free Software |
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| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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| 20 | */ |
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| 21 | |||
| 22 | #include "libavcodec/avcodec.h" |
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| 23 | #include "libavcodec/bytestream.h" |
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| 24 | #include "avformat.h" |
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| 25 | #include "rawenc.h" |
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| 26 | |||
| 27 | static int a64_write_header(struct AVFormatContext *s) |
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| 28 | { |
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| 29 | AVCodecContext *avctx = s->streams[0]->codec; |
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| 30 | uint8_t header[5] = { |
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| 31 | 0x00, //load |
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| 32 | 0x40, //address |
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| 33 | 0x00, //mode |
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| 34 | 0x00, //charset_lifetime (multi only) |
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| 35 | 0x00 //fps in 50/fps; |
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| 36 | }; |
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| 37 | switch (avctx->codec->id) { |
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| 38 | case AV_CODEC_ID_A64_MULTI: |
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| 39 | header[2] = 0x00; |
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| 40 | header[3] = AV_RB32(avctx->extradata+0); |
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| 41 | header[4] = 2; |
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| 42 | break; |
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| 43 | case AV_CODEC_ID_A64_MULTI5: |
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| 44 | header[2] = 0x01; |
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| 45 | header[3] = AV_RB32(avctx->extradata+0); |
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| 46 | header[4] = 3; |
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| 47 | break; |
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| 48 | default: |
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| 49 | return AVERROR(EINVAL); |
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| 50 | } |
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| 51 | avio_write(s->pb, header, 2); |
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| 52 | return 0; |
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| 53 | } |
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| 54 | |||
| 55 | AVOutputFormat ff_a64_muxer = { |
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| 56 | .name = "a64", |
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| 57 | .long_name = NULL_IF_CONFIG_SMALL("a64 - video for Commodore 64"), |
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| 58 | .extensions = "a64, A64", |
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| 59 | .video_codec = AV_CODEC_ID_A64_MULTI, |
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| 60 | .write_header = a64_write_header, |
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| 61 | .write_packet = ff_raw_write_packet, |
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| 62 | }; |