Packager truncating WebM video files

[paullewis]

Issue

I'm finding that WebM files are being truncated by version 924d6d4-release. In particular I have a 720p WebM video that is truncated from 36,336,882 bytes to 35,648,887. The 1080p version of the same video is truncated even more severely: 72,773,711 bytes to 35,649,836 bytes.

Repro

Grab the following files:

1. 720p WebM Video
2. Vorbis video

# macOS bash
stat -f%z v-0720p-1800k-libvpx-vp9.webm # 36336882

And then run:

packager input=a-eng-0128k-libvorbis.webm,stream=audio,output=a-eng-0128k-libvorbis.webm \
         input=v-0720p-1800k-libvpx-vp9.webm,stream=video,output=v-0720p-1800k-libvpx-vp9.webm \
         --mpd_output example.mpd

# macOS bash
stat -f%z v-0720p-1800k-libvpx-vp9.webm # 35648887

System info

Operating System: 10.12.2 macOS Sierra and Ubuntu 14.04 trusty
FFMpeg: 3.2.2
libvpx: 1.6.1
packager: 924d6d4-release

[paullewis]

If I don't have the packager overwrite the original files, but rather say, for example output=video.webm, everything works just fine.

[kqyang]

Thanks for reporting the problem and including the detail repro instructions! Working on a fix now.