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transcoding:transcoding [2010/11/26 10:59] airflow |
transcoding:transcoding [2012/03/01 06:32] (current) zabby Adding speed up tip that helped me greatly. |
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| This is fixed by using the "-y" switch, which basically tells ffmpeg to write to the given target, regardless of whether it already exists or not, skipping the read-check. | This is fixed by using the "-y" switch, which basically tells ffmpeg to write to the given target, regardless of whether it already exists or not, skipping the read-check. | ||
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| + | ===== FFmpeg transcoding too slow ===== | ||
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| + | IF FFmpeg is transcoding too slow, which is often the case even on relatively new computers with 720p/1080p content, the "-intra" option significantly speeds up compression at the expense of file size and quality. This is not necessarily an issue with gigabit/802.11N networks, where you can boost your bitrate to compensate. Intra disables motion estimation completely (you have only I-frames, which means compression is about as good as JPEG compression). This also works if using FFmpeg within VLC. | ||
| ===== Default vlcmpeg transcoder not working ==== | ===== Default vlcmpeg transcoder not working ==== | ||