}else
codec->bits_per_sample = get_le16(pb);
codec->codec_id = wav_codec_get_id(id, codec->bits_per_sample);
-
+
if (size > 16) { /* We're obviously dealing with WAVEFORMATEX */
codec->extradata_size = get_le16(pb);
if (codec->extradata_size > 0) {
return AVERROR_NOMEM;
get_wav_header(pb, &st->codec, size);
+ st->need_parsing = 1;
size = find_tag(pb, MKTAG('d', 'a', 't', 'a'));
if (size < 0)
static int wav_read_packet(AVFormatContext *s,
AVPacket *pkt)
{
- int ret;
+ int ret, size;
+ AVStream *st;
if (url_feof(&s->pb))
return -EIO;
- if (av_new_packet(pkt, MAX_SIZE))
+ st = s->streams[0];
+
+ size = MAX_SIZE;
+ if (st->codec.block_align > 1) {
+ if (size < st->codec.block_align)
+ size = st->codec.block_align;
+ size = (size / st->codec.block_align) * st->codec.block_align;
+ }
+ if (av_new_packet(pkt, size))
return -EIO;
pkt->stream_index = 0;
return 0;
}
+static int wav_read_seek(AVFormatContext *s,
+ int stream_index, int64_t timestamp)
+{
+ AVStream *st;
+
+ st = s->streams[0];
+ switch(st->codec.codec_id) {
+ case CODEC_ID_MP2:
+ case CODEC_ID_MP3:
+ case CODEC_ID_AC3:
+ /* use generic seeking with dynamically generated indexes */
+ return -1;
+ default:
+ break;
+ }
+ return pcm_read_seek(s, stream_index, timestamp);
+}
+
+
static AVInputFormat wav_iformat = {
"wav",
"wav format",
wav_read_header,
wav_read_packet,
wav_read_close,
+ wav_read_seek,
};
#ifdef CONFIG_ENCODERS