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Put ff_flac_write_header() in a separate C file to allow it to be shared without

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duplicating code or adding a dependency on vorbiscomment.o.

Originally committed as revision 22652 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Justin Ruggles 2010-03-23 23:58:45 +00:00
parent 85f273c7ca
commit 06ebe9161e
3 changed files with 55 additions and 25 deletions
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6
libavformat/Makefile
View File

@ -71,7 +71,8 @@ OBJS-$(CONFIG_FILMSTRIP_MUXER) += filmstripenc.o
OBJS-$(CONFIG_FLAC_DEMUXER) += flacdec.o raw.o id3v1.o \
id3v2.o oggparsevorbis.o \
vorbiscomment.o
OBJS-$(CONFIG_FLAC_MUXER) += flacenc.o vorbiscomment.o
OBJS-$(CONFIG_FLAC_MUXER) += flacenc.o flacenc_header.o \
vorbiscomment.o
OBJS-$(CONFIG_FLIC_DEMUXER) += flic.o
OBJS-$(CONFIG_FLV_DEMUXER) += flvdec.o
OBJS-$(CONFIG_FLV_MUXER) += flvenc.o avc.o
@ -103,7 +104,8 @@ OBJS-$(CONFIG_M4V_MUXER) += raw.o
OBJS-$(CONFIG_MATROSKA_DEMUXER) += matroskadec.o matroska.o \
riff.o isom.o rmdec.o rm.o
OBJS-$(CONFIG_MATROSKA_MUXER) += matroskaenc.o matroska.o \
riff.o isom.o avc.o
riff.o isom.o avc.o \
flacenc_header.o
OBJS-$(CONFIG_MJPEG_DEMUXER) += raw.o
OBJS-$(CONFIG_MJPEG_MUXER) += raw.o
OBJS-$(CONFIG_MLP_DEMUXER) += raw.o id3v2.o

25
libavformat/flacenc.h
View File

@ -26,28 +26,7 @@
#include "libavcodec/bytestream.h"
#include "avformat.h"
static int ff_flac_write_header(ByteIOContext *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) {
put_buffer(pb, header, 8);
}
/* write STREAMINFO or full header */
put_buffer(pb, codec->extradata, codec->extradata_size);
return 0;
}
int ff_flac_write_header(ByteIOContext *pb, AVCodecContext *codec,
int last_block);
#endif /* AVFORMAT_FLACENC_H */

49
libavformat/flacenc_header.c Normal file
View File

@ -0,0 +1,49 @@
/*
* raw FLAC muxer
* Copyright (C) 2009 Justin Ruggles
*
* 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/flac.h"
#include "libavcodec/bytestream.h"
#include "avformat.h"
#include "flacenc.h"
int ff_flac_write_header(ByteIOContext *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) {
put_buffer(pb, header, 8);
}
/* write STREAMINFO or full header */
put_buffer(pb, codec->extradata, codec->extradata_size);
return 0;
}