mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-21 10:55:51 +02:00
50 lines
1.6 KiB
C
50 lines
1.6 KiB
C
/*
|
|
* raw FLAC muxer
|
|
* Copyright (C) 2009 Justin Ruggles
|
|
*
|
|
* This file is part of Libav.
|
|
*
|
|
* Libav 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.
|
|
*
|
|
* Libav 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 Libav; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include "libavcodec/flac.h"
|
|
#include "libavcodec/bytestream.h"
|
|
#include "avformat.h"
|
|
#include "flacenc.h"
|
|
|
|
int ff_flac_write_header(AVIOContext *pb, AVCodecContext *codec,
|
|
int last_block)
|
|
{
|
|
uint8_t header[8] = {
|
|
0x66, 0x4C, 0x61, 0x43, 0x00, 0x00, 0x00, 0x22
|
|
};
|
|
uint8_t *streaminfo;
|
|
enum FLACExtradataFormat format;
|
|
|
|
header[4] = last_block ? 0x80 : 0x00;
|
|
if (!ff_flac_is_extradata_valid(codec, &format, &streaminfo))
|
|
return -1;
|
|
|
|
/* write "fLaC" stream marker and first metadata block header if needed */
|
|
if (format == FLAC_EXTRADATA_FORMAT_STREAMINFO) {
|
|
avio_write(pb, header, 8);
|
|
}
|
|
|
|
/* write STREAMINFO or full header */
|
|
avio_write(pb, codec->extradata, codec->extradata_size);
|
|
|
|
return 0;
|
|
}
|