61 lines
1.7 KiB
C
61 lines
1.7 KiB
C
/*
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* Silk Audio Muxer
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* Silk Audio Muxer
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* #!SILK_V3 + pkt size(2 bytes) + pkt data(raw) + pkt size(2 bytes) + pkt data ...
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*/
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#include "avformat.h"
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#include "mux.h"
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static int silk_write_header(AVFormatContext *s)
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{
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avio_write(s->pb, "#!SILK_V3", strlen("#!SILK_V3"));
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return 0;
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}
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static int silk_write_packet(AVFormatContext *s, AVPacket *pkt)
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{
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AVIOContext *pb = s->pb;
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if (!pkt->size)
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return 0;
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avio_wl16(pb, pkt->size);
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avio_write(pb, pkt->data, pkt->size);
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return 0;
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}
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const FFOutputFormat ff_silk_muxer = {
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.p.name = "silk",
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.p.long_name = NULL_IF_CONFIG_SMALL("Silk Audio Muxer"),
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.p.mime_type = "audio/silk",
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.p.extensions = "silk",
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.p.audio_codec = AV_CODEC_ID_SILK,
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.p.video_codec = AV_CODEC_ID_NONE,
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.p.flags = AVFMT_NOTIMESTAMPS,
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.write_header = silk_write_header,
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.write_packet = silk_write_packet,
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};
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