* Raw FLAC demuxer
* Copyright (c) 2001 Fabrice Bellard
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * 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.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * 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 FFmpeg; if not, write to the Free Software
+ * 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 "avformat.h"
-#include "raw.h"
-#include "id3v2.h"
+#include "rawdec.h"
#include "oggdec.h"
#include "vorbiscomment.h"
static int flac_read_header(AVFormatContext *s,
AVFormatParameters *ap)
{
- uint8_t buf[ID3v2_HEADER_SIZE];
int ret, metadata_last=0, metadata_type, metadata_size, found_streaminfo=0;
uint8_t header[4];
uint8_t *buffer=NULL;
- AVStream *st = av_new_stream(s, 0);
+ AVStream *st = avformat_new_stream(s, NULL);
if (!st)
return AVERROR(ENOMEM);
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
st->need_parsing = AVSTREAM_PARSE_FULL;
/* the parameters will be extracted from the compressed bitstream */
- /* skip ID3v2 header if found */
- ret = get_buffer(s->pb, buf, ID3v2_HEADER_SIZE);
- if (ret == ID3v2_HEADER_SIZE && ff_id3v2_match(buf)) {
- int len = ff_id3v2_tag_len(buf);
- url_fseek(s->pb, len - ID3v2_HEADER_SIZE, SEEK_CUR);
- } else {
- url_fseek(s->pb, 0, SEEK_SET);
- }
-
/* if fLaC marker is not found, assume there is no header */
- if (get_le32(s->pb) != MKTAG('f','L','a','C')) {
- url_fseek(s->pb, -4, SEEK_CUR);
+ if (avio_rl32(s->pb) != MKTAG('f','L','a','C')) {
+ avio_seek(s->pb, -4, SEEK_CUR);
return 0;
}
/* process metadata blocks */
- while (!url_feof(s->pb) && !metadata_last) {
- get_buffer(s->pb, header, 4);
- ff_flac_parse_block_header(header, &metadata_last, &metadata_type,
+ while (!s->pb->eof_reached && !metadata_last) {
+ avio_read(s->pb, header, 4);
+ avpriv_flac_parse_block_header(header, &metadata_last, &metadata_type,
&metadata_size);
switch (metadata_type) {
/* allocate and read metadata block for supported types */
case FLAC_METADATA_TYPE_VORBIS_COMMENT:
buffer = av_mallocz(metadata_size + FF_INPUT_BUFFER_PADDING_SIZE);
if (!buffer) {
- return AVERROR_NOMEM;
+ return AVERROR(ENOMEM);
}
- if (get_buffer(s->pb, buffer, metadata_size) != metadata_size) {
+ if (avio_read(s->pb, buffer, metadata_size) != metadata_size) {
av_freep(&buffer);
return AVERROR(EIO);
}
break;
/* skip metadata block for unsupported types */
default:
- ret = url_fseek(s->pb, metadata_size, SEEK_CUR);
+ ret = avio_skip(s->pb, metadata_size);
if (ret < 0)
return ret;
}
buffer = NULL;
/* get codec params from STREAMINFO header */
- ff_flac_parse_streaminfo(st->codec, &si, st->codec->extradata);
+ avpriv_flac_parse_streaminfo(st->codec, &si, st->codec->extradata);
/* set time base and duration */
if (si.samplerate > 0) {
uint8_t *bufptr = p->buf;
uint8_t *end = p->buf + p->buf_size;
- if(ff_id3v2_match(bufptr))
- bufptr += ff_id3v2_tag_len(bufptr);
-
if(bufptr > end-4 || memcmp(bufptr, "fLaC", 4)) return 0;
else return AVPROBE_SCORE_MAX/2;
}
-AVInputFormat flac_demuxer = {
- "flac",
- NULL_IF_CONFIG_SMALL("raw FLAC"),
- 0,
- flac_probe,
- flac_read_header,
- ff_raw_read_partial_packet,
+AVInputFormat ff_flac_demuxer = {
+ .name = "flac",
+ .long_name = NULL_IF_CONFIG_SMALL("raw FLAC"),
+ .read_probe = flac_probe,
+ .read_header = flac_read_header,
+ .read_packet = ff_raw_read_partial_packet,
.flags= AVFMT_GENERIC_INDEX,
.extensions = "flac",
.value = CODEC_ID_FLAC,
- .metadata_conv = ff_vorbiscomment_metadata_conv,
};