f6b56b1f26
In particular fix wrong strerror(ret) with a negative value, and avoid the use of non thread-safe strerror().
FFmpeg README ------------- 1) Documentation ---------------- * Read the documentation in the doc/ directory in git. You can also view it online at http://ffmpeg.org/documentation.html 2) Licensing ------------ * See the LICENSE file. 3) Build and Install -------------------- * See the INSTALL file.