![]() ![]() FFMPEG RESIZE VIDEO KEEP ASPECT FULLAvailable methods are zero phods log x1 epzs (default) full me method Set the method of motion estimation. rc_override override Rate control overload at a specific interval rc_eq equation Set the default rate control equation tex^qComp i_qoffset offset qp offset between p and i frames b_qoffset offset qp offset between p and b frames i_qfactor factor qp factor between p and i frames b_qfactor factor qp factor between p and b frames rc_init_cplx complexity The initial complexity of one pass encoding qcomp compression Video quantization scale compression (VBR) qblur blur video quantization scale softening (VBR) qdiff q Maximum deviation between quantization scales (VBR) qmax q Maximum video quantization scale (VBR) qmin q minimum video quantization scale (VBR) qscale q Use a fixed video quantization scale (VBR) passlogfile file Select the two-pass log file name as file Advanced video options The first pass generates statistical information, and the second pass generates accurate requested bit rate ![]() ![]() pass n Select the number of processing passes (1 or 2). sameq uses the same video quality as the source (VBR) If copy is used to indicate that the original codec data must be copied vcodec codec Force the use of codec encoding and decoding methods. bufsize size set the bit rate control buffer size minrate bitreate set the minimum video bit rate tolerance maxrate bitrate sets the maximum video bitrate tolerance bt tolerance Set video bit rate tolerance kbit/s padbottom size –padleft size –padright size –padcolor color Set the color of the padding bar (hex, 6 hexadecimal numbers, red: green: blue arrangement, such as 000000 for black) padtop size sets the size of the top padding in pixels cropbottom size –cropleft size –cropright size croptop size sets the size of the top cut in pixels The following abbreviations can also be used directly: Sqcif 128X96 qcif 176X144 cif 252X288 4cif 704X576 s size Set the frame size format to WXH default 160X128. b bitrate set the bit rate, the default is 200kb/s hh:mm:ss format is also supported Video options Defining a positive offset means that the corresponding stream is delayed by offset seconds. The offset is added to the time stamp of the input file. This option affects all subsequent input files. itsoffset offset Set the time offset based on seconds. target type Set the target file type (vcd, svcd, dvd) and all the format options (bitrate, codec and buffer size) are automatically set, just enter the following: ffmpeg -i myfile.avi -target vcd/tmp/vcd.mpg ss position search to the specified time hh:mm:ss format is also supported t duration sets the recording time hh:mm:ss format recording time is also supported fromats display available formats, codecs, and protocols ![]()
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