299a56879d
If a packet is not ready on the input selected by ffmpeg, it will read from another input instead. If that happens repeatedly, frames will accumulate somewhere later in the processing to ensure streams synchronization. It can happen in particular when reading from a slow medium or an expensive lavfi filter graph. Make reading from normal demuxers on non-streamed data and from the lavfi pseudo-device blocking to avoid that. Should fix trac ticket #3079.
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.