* WavPack demuxer
* Copyright (c) 2006,2011 Konstantin Shishkov
*
- * 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 "libavutil/audioconvert.h"
#include "libavutil/intreadwrite.h"
+#include "libavutil/dict.h"
#include "avformat.h"
+#include "internal.h"
#include "apetag.h"
#include "id3v1.h"
int rate, bpp, chan;
uint32_t chmask;
- wc->pos = url_ftell(pb);
+ wc->pos = avio_tell(pb);
if(!append){
tag = avio_rl32(pb);
if (tag != MKTAG('w', 'v', 'p', 'k'))
size = wc->blksize;
}
wc->flags = AV_RL32(wc->extra + 4);
+ // blocks with zero samples don't contain actual audio information and should be ignored
+ if (!AV_RN32(wc->extra))
+ return 0;
//parse flags
bpp = ((wc->flags & 3) + 1) << 3;
chan = 1 + !(wc->flags & WV_MONO);
chmask = wc->chmask;
}
if((rate == -1 || !chan) && !wc->block_parsed){
- int64_t block_end = url_ftell(pb) + wc->blksize - 24;
- if(url_is_streamed(pb)){
+ int64_t block_end = avio_tell(pb) + wc->blksize - 24;
+ if(!pb->seekable){
av_log(ctx, AV_LOG_ERROR, "Cannot determine additional parameters\n");
return -1;
}
- while(url_ftell(pb) < block_end){
+ while(avio_tell(pb) < block_end){
int id, size;
id = avio_r8(pb);
size = (id & 0x80) ? avio_rl24(pb) : avio_r8(pb);
chmask = avio_rl32(pb);
break;
case 5:
- url_fskip(pb, 1);
+ avio_skip(pb, 1);
chan |= (avio_r8(pb) & 0xF) << 8;
chmask = avio_rl24(pb);
break;
rate = avio_rl24(pb);
break;
default:
- url_fskip(pb, size);
+ avio_skip(pb, size);
}
if(id&0x40)
- url_fskip(pb, 1);
+ avio_skip(pb, 1);
}
if(rate == -1){
av_log(ctx, AV_LOG_ERROR, "Cannot determine custom sampling rate\n");
AVStream *st;
wc->block_parsed = 0;
- if(wv_read_block_header(s, pb, 0) < 0)
- return -1;
+ for(;;){
+ if(wv_read_block_header(s, pb, 0) < 0)
+ return -1;
+ if(!AV_RN32(wc->extra))
+ avio_skip(pb, wc->blksize - 24);
+ else
+ break;
+ }
/* now we are ready: build format streams */
- st = av_new_stream(s, 0);
+ st = avformat_new_stream(s, NULL);
if (!st)
return -1;
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
st->codec->channel_layout = wc->chmask;
st->codec->sample_rate = wc->rate;
st->codec->bits_per_coded_sample = wc->bpp;
- av_set_pts_info(st, 64, 1, wc->rate);
+ avpriv_set_pts_info(st, 64, 1, wc->rate);
st->start_time = 0;
st->duration = wc->samples;
- if(!url_is_streamed(s->pb)) {
- int64_t cur = url_ftell(s->pb);
+ if(s->pb->seekable) {
+ int64_t cur = avio_tell(s->pb);
ff_ape_parse_tag(s);
- if(!av_metadata_get(s->metadata, "", NULL, AV_METADATA_IGNORE_SUFFIX))
+ if(!av_dict_get(s->metadata, "", NULL, AV_DICT_IGNORE_SUFFIX))
ff_id3v1_read(s);
avio_seek(s->pb, cur, SEEK_SET);
}
WVContext *wc = s->priv_data;
int ret;
int size, ver, off;
+ int64_t pos;
- if (url_feof(s->pb))
+ if (s->pb->eof_reached)
return AVERROR(EIO);
if(wc->block_parsed){
if(wv_read_block_header(s, s->pb, 0) < 0)
return -1;
}
+ pos = wc->pos;
off = wc->multichannel ? 4 : 0;
if(av_new_packet(pkt, wc->blksize + WV_EXTRA_SIZE + off) < 0)
return AVERROR(ENOMEM);
pkt->stream_index = 0;
wc->block_parsed = 1;
pkt->pts = wc->soff;
- av_add_index_entry(s->streams[0], wc->pos, pkt->pts, 0, 0, AVINDEX_KEYFRAME);
+ av_add_index_entry(s->streams[0], pos, pkt->pts, 0, 0, AVINDEX_KEYFRAME);
return 0;
}
int64_t pos, pts;
/* if found, seek there */
- if (index >= 0){
+ if (index >= 0 &&
+ timestamp <= st->index_entries[st->nb_index_entries - 1].timestamp) {
wc->block_parsed = 1;
avio_seek(s->pb, st->index_entries[index].pos, SEEK_SET);
return 0;
if(timestamp < 0 || timestamp >= s->duration)
return -1;
- pos = url_ftell(s->pb);
+ pos = avio_tell(s->pb);
do{
ret = av_read_frame(s, pkt);
if (ret < 0){
}
AVInputFormat ff_wv_demuxer = {
- "wv",
- NULL_IF_CONFIG_SMALL("WavPack"),
- sizeof(WVContext),
- wv_probe,
- wv_read_header,
- wv_read_packet,
- NULL,
- wv_read_seek,
+ .name = "wv",
+ .long_name = NULL_IF_CONFIG_SMALL("WavPack"),
+ .priv_data_size = sizeof(WVContext),
+ .read_probe = wv_probe,
+ .read_header = wv_read_header,
+ .read_packet = wv_read_packet,
+ .read_seek = wv_read_seek,
};
projects / ffmpeg / blobdiff