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path: root/src/decoder/plugins/MadDecoderPlugin.cxx
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-rw-r--r--src/decoder/plugins/MadDecoderPlugin.cxx4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/decoder/plugins/MadDecoderPlugin.cxx b/src/decoder/plugins/MadDecoderPlugin.cxx
index 886aa1795..e38fe3f29 100644
--- a/src/decoder/plugins/MadDecoderPlugin.cxx
+++ b/src/decoder/plugins/MadDecoderPlugin.cxx
@@ -769,9 +769,9 @@ MadDecoder::RestIncludingThisFrame() const
inline void
MadDecoder::FileSizeToSongLength()
{
- InputStream::offset_type rest = RestIncludingThisFrame();
+ if (input_stream.KnownSize()) {
+ InputStream::offset_type rest = RestIncludingThisFrame();
- if (rest > 0) {
float frame_duration = mp3_frame_duration(&frame);
total_time = (rest * 8.0) / frame.header.bitrate;