typedef struct {
uint64_t data_end;
+ uint64_t audio_size;
+ uint64_t data_size;
} DSFContext;
static int dsf_probe(AVProbeData *p)
return AVERROR_INVALIDDATA;
}
- avio_skip(pb, 8);
+ dsf->audio_size = avio_rl64(pb) / 8 * st->codecpar->channels;
st->codecpar->block_align = avio_rl32(pb);
if (st->codecpar->block_align > INT_MAX / st->codecpar->channels) {
avpriv_request_sample(s, "block_align overflow");
dsf->data_end = avio_tell(pb);
if (avio_rl32(pb) != MKTAG('d', 'a', 't', 'a'))
return AVERROR_INVALIDDATA;
- dsf->data_end += avio_rl64(pb);
+ dsf->data_size = avio_rl64(pb) - 12;
+ dsf->data_end += dsf->data_size + 12;
+ s->internal->data_offset = avio_tell(pb);
return 0;
}
return AVERROR_EOF;
pkt->stream_index = 0;
+ if (dsf->data_size > dsf->audio_size) {
+ int last_packet = pos == (dsf->data_end - st->codecpar->block_align);
+
+ if (last_packet) {
+ int64_t data_pos = pos - s->internal->data_offset;
+ int64_t packet_size = dsf->audio_size - data_pos;
+ int64_t skip_size = dsf->data_size - data_pos - packet_size;
+ uint8_t *dst;
+ int ch, ret;
+
+ if (packet_size <= 0 || skip_size <= 0)
+ return AVERROR_INVALIDDATA;
+
+ if (av_new_packet(pkt, packet_size) < 0)
+ return AVERROR(ENOMEM);
+ dst = pkt->data;
+ for (ch = 0; ch < st->codecpar->channels; ch++) {
+ ret = avio_read(pb, dst, packet_size / st->codecpar->channels);
+ if (ret < packet_size / st->codecpar->channels)
+ return AVERROR_EOF;
+
+ dst += ret;
+ avio_skip(pb, skip_size / st->codecpar->channels);
+ }
+
+ return 0;
+ }
+ }
return av_get_packet(pb, pkt, FFMIN(dsf->data_end - pos, st->codecpar->block_align));
}