Benutzen
ffmpeg -i in.mp4 -c:v libx264 -pix_fmt yuv420p -profile:v main -level:v 3.1 -refs 3 -x264opts b-pyramid=0 -c:a copy out.mp4
Gibt es sowieso das Video nach diesen Spezifikationen zu kodieren? (Main & Level 3.1 & ReFrames: 3 Frames & Chroma-Unterabtastung: 4: 2: 0 , ... )
FFmpeg:
Stream #0:0: Video: h264 (Main), yuv420p(progressive), 768x576, 358 kb/s, 25 fps, 25 tbr, 1k tbn, 50 tbc Stream #0:1: Audio: aac (LC), 48000 Hz, stereo, fltp, 49 kb/s
Medieninformation:
Format : Flash Video File size : 2.70 MiB Duration : 1 min 0 s Overall bit rate : 420 kb/s Video Format : AVC Format/Info : Advanced Video Codec Format profile : Main@L3.1 Format settings, CABAC : Yes Format settings, ReFrames : 3 frames Codec ID : 7 Duration : 1 min 0 s Bit rate : 350 kb/s Width : 768 pixels Height : 576 pixels Display aspect ratio : 4:3 Frame rate mode : Constant Frame rate : 25.000 FPS Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Progressive Bits/(Pixel*Frame) : 0.032 Audio Format : AAC Format/Info : Advanced Audio Codec Format profile : LC Codec ID : 10 Duration : 1 min 0 s Bit rate : 48.0 kb/s Channel(s) : 2 channels Channel positions : Front: L R Sampling rate : 48.0 kHz Frame rate : 46.875 FPS (1024 spf) Compression mode : Lossy
Benutzen
ffmpeg -i in.mp4 -c:v libx264 -pix_fmt yuv420p -profile:v main -level:v 3.1 -refs 3 -x264opts b-pyramid=0 -c:a copy out.mp4