*/
#include <stdlib.h>
+#include "libavcodec/get_bits.h"
+#include "libavcodec/flac.h"
#include "avformat.h"
-#include "bitstream.h"
-#include "ogg2.h"
+#include "oggdec.h"
-#define FLAC_STREAMINFO_SIZE 0x22
+#define OGG_FLAC_METADATA_TYPE_STREAMINFO 0x7F
static int
flac_header (AVFormatContext * s, int idx)
{
- ogg_t *ogg = s->priv_data;
- ogg_stream_t *os = ogg->streams + idx;
+ struct ogg *ogg = s->priv_data;
+ struct ogg_stream *os = ogg->streams + idx;
AVStream *st = s->streams[idx];
GetBitContext gb;
+ FLACStreaminfo si;
int mdt;
if (os->buf[os->pstart] == 0xff)
return 0;
init_get_bits(&gb, os->buf + os->pstart, os->psize*8);
- get_bits(&gb, 1); /* metadata_last */
+ skip_bits1(&gb); /* metadata_last */
mdt = get_bits(&gb, 7);
- if (mdt == 0x7f) {
- skip_bits(&gb, 4*8); /* "FLAC" */
+ if (mdt == OGG_FLAC_METADATA_TYPE_STREAMINFO) {
+ uint8_t *streaminfo_start = os->buf + os->pstart + 5 + 4 + 4 + 4;
+ skip_bits_long(&gb, 4*8); /* "FLAC" */
if(get_bits(&gb, 8) != 1) /* unsupported major version */
return -1;
- skip_bits(&gb, 8 + 16); /* minor version + header count */
- skip_bits(&gb, 4*8); /* "fLaC" */
+ skip_bits_long(&gb, 8 + 16); /* minor version + header count */
+ skip_bits_long(&gb, 4*8); /* "fLaC" */
/* METADATA_BLOCK_HEADER */
if (get_bits_long(&gb, 32) != FLAC_STREAMINFO_SIZE)
return -1;
- skip_bits(&gb, 16*2+24*2);
+ ff_flac_parse_streaminfo(st->codec, &si, streaminfo_start);
- st->codec->sample_rate = get_bits_long(&gb, 20);
- st->codec->channels = get_bits(&gb, 3) + 1;
-
- st->codec->codec_type = CODEC_TYPE_AUDIO;
+ st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
st->codec->codec_id = CODEC_ID_FLAC;
st->codec->extradata =
av_malloc(FLAC_STREAMINFO_SIZE + FF_INPUT_BUFFER_PADDING_SIZE);
- memcpy (st->codec->extradata, os->buf + os->pstart + 5 + 4 + 4 + 4,
- FLAC_STREAMINFO_SIZE);
+ memcpy(st->codec->extradata, streaminfo_start, FLAC_STREAMINFO_SIZE);
st->codec->extradata_size = FLAC_STREAMINFO_SIZE;
st->time_base.num = 1;
st->time_base.den = st->codec->sample_rate;
- } else if (mdt == 4) {
- vorbis_comment (s, os->buf + os->pstart + 4, os->psize - 4);
+ } else if (mdt == FLAC_METADATA_TYPE_VORBIS_COMMENT) {
+ ff_vorbis_comment (s, &st->metadata, os->buf + os->pstart + 4, os->psize - 4);
}
return 1;
}
-ogg_codec_t flac_codec = {
+static int
+old_flac_header (AVFormatContext * s, int idx)
+{
+ AVStream *st = s->streams[idx];
+ st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
+ st->codec->codec_id = CODEC_ID_FLAC;
+
+ return 0;
+}
+
+const struct ogg_codec ff_flac_codec = {
.magic = "\177FLAC",
.magicsize = 5,
.header = flac_header
};
+
+const struct ogg_codec ff_old_flac_codec = {
+ .magic = "fLaC",
+ .magicsize = 4,
+ .header = old_flac_header
+};