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Uoti Urpala
fd50478659
When switching to a timeline part from another file, decoders were reinitialized after doing the demuxer-level seek. This is necessary for audio because some decoders read from the demuxer stream during initialization and the previous stream position before seek could have been at EOF. However, this initialization sequence could lose first subtitles or first part of audio. The problem for subtitles was that the seek itself or audio initialization could already have buffered subtitle packets from the new position, and the way subtitles are reinitialized flushes packet buffers. Thus early subtitles could be lost (even if they were demuxed - unfortunately demuxers may not know about still active subtitles earlier in the file, but that's another issue). Fix this by moving subtitle and video reinitialization before the demuxer seek; they don't have the problems which prevent that for audio. Audio initialization can already decode and buffer some output. However, the seek_reset() call done last would then throw away this buffered output. Work around this by adding an extra flag to seek_reset().
Compiling with full features requires development files for several external libraries. Below is a list of some important requirements. For more information see the output of './configure --help' for a list of options, or look at the list of enabled and disabled features printed after running './configure'. If you think you have support for some feature installed but configure fails to detect it, the file config.log may contain information about the reasons for the failure. Libraries specific to particular video output methods (you'll want at least one of VDPAU, GL or Xv): - libvdpau (for VDPAU output, best choice for NVIDIA cards) - libGL (OpenGL output) - libXv (XVideo output) general: - libasound (ALSA audio output) - various general X development libraries - libfreetype - libfontconfig - libass - FFmpeg libraries (libavutil libavcodec libavformat libswscale libpostproc) Most of the above libraries are available in suitable versions on normal Linux distributions. However FFmpeg is an exception (distro versions may be too old to work at all or work well). For that reason you may want to use the separately available build wrapper that first compiles FFmpeg libraries and libass, and then compiles the player statically linked against those.