flac muxer: accept only STREAMINFO extradata

The other format (full flac header blocks) should not be exported by any
demuxers anymore.

This allows to drop an avpriv_ function and also simplify the following
commits.
pull/74/head
Anton Khirnov 11 years ago
parent ed39cda029
commit 0097cbea69
  1. 11
      libavformat/flacenc_header.c

@ -22,7 +22,7 @@
#include "libavutil/channel_layout.h"
#include "libavcodec/flac.h"
#include "libavcodec/bytestream.h"
#include "avformat.h"
#include "flacenc.h"
@ -32,18 +32,17 @@ int ff_flac_write_header(AVIOContext *pb, AVCodecContext *codec,
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 (!avpriv_flac_is_extradata_valid(codec, &format, &streaminfo))
return -1;
if (codec->extradata_size < FLAC_STREAMINFO_SIZE)
return AVERROR_INVALIDDATA;
/* write "fLaC" stream marker and first metadata block header */
avio_write(pb, header, 8);
/* write STREAMINFO */
avio_write(pb, streaminfo, FLAC_STREAMINFO_SIZE);
avio_write(pb, codec->extradata, FLAC_STREAMINFO_SIZE);
return 0;
}

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