/*
* WavPack demuxer
- * Copyright (c) 2006 Konstantin Shishkov.
+ * Copyright (c) 2006 Konstantin Shishkov
*
* This file is part of FFmpeg.
*
#include "libavutil/intreadwrite.h"
#include "avformat.h"
+#include "apetag.h"
+#include "id3v1.h"
// specs say that maximum block size is 1Mb
#define WV_BLOCK_LIMIT 1047576
get_buffer(pb, wc->extra, WV_EXTRA_SIZE);
wc->flags = AV_RL32(wc->extra + 4);
//parse flags
- if(wc->flags & WV_FLOAT){
- av_log(ctx, AV_LOG_ERROR, "Floating point data is not supported\n");
- return -1;
- }
- if(wc->flags & WV_HYBRID){
- av_log(ctx, AV_LOG_ERROR, "Hybrid coding mode is not supported\n");
- return -1;
- }
-
bpp = ((wc->flags & 3) + 1) << 3;
chan = 1 + !(wc->flags & WV_MONO);
rate = wv_rates[(wc->flags >> 23) & 0xF];
- if(rate == -1){
- av_log(ctx, AV_LOG_ERROR, "Unknown sampling rate\n");
- return -1;
+ if(rate == -1 && !wc->block_parsed){
+ int64_t block_end = url_ftell(pb) + wc->blksize - 24;
+ if(url_is_streamed(pb)){
+ av_log(ctx, AV_LOG_ERROR, "Cannot determine custom sampling rate\n");
+ return -1;
+ }
+ while(url_ftell(pb) < block_end){
+ int id, size;
+ id = get_byte(pb);
+ size = (id & 0x80) ? get_le24(pb) : get_byte(pb);
+ size <<= 1;
+ if(id&0x40)
+ size--;
+ if((id&0x3F) == 0x27){
+ rate = get_le24(pb);
+ break;
+ }else{
+ url_fskip(pb, size);
+ }
+ }
+ if(rate == -1){
+ av_log(ctx, AV_LOG_ERROR, "Cannot determine custom sampling rate\n");
+ return -1;
+ }
+ url_fseek(pb, block_end - wc->blksize + 24, SEEK_SET);
}
if(!wc->bpp) wc->bpp = bpp;
if(!wc->chan) wc->chan = chan;
av_log(ctx, AV_LOG_ERROR, "Channels differ, this block: %i, header block: %i\n", chan, wc->chan);
return -1;
}
- if(wc->flags && rate != wc->rate){
+ if(wc->flags && rate != -1 && rate != wc->rate){
av_log(ctx, AV_LOG_ERROR, "Sampling rate differ, this block: %i, header block: %i\n", rate, wc->rate);
return -1;
}
WVContext *wc = s->priv_data;
AVStream *st;
+ wc->block_parsed = 0;
if(wv_read_block_header(s, pb) < 0)
return -1;
- wc->block_parsed = 0;
/* now we are ready: build format streams */
st = av_new_stream(s, 0);
if (!st)
av_set_pts_info(st, 64, 1, wc->rate);
s->start_time = 0;
s->duration = (int64_t)wc->samples * AV_TIME_BASE / st->codec->sample_rate;
+
+ if(!url_is_streamed(s->pb)) {
+ int64_t cur = url_ftell(s->pb);
+ ff_ape_parse_tag(s);
+ if(!av_metadata_get(s->metadata, "", NULL, AV_METADATA_IGNORE_SUFFIX))
+ ff_id3v1_read(s);
+ url_fseek(s->pb, cur, SEEK_SET);
+ }
+
return 0;
}