[Cin] Sorry, updated mpeg4 profiles again
Andrew Randrianasulu
randrianasulu at gmail.com
Tue Sep 15 12:10:14 CEST 2020
This time using info from https://ffmpeg.org/faq.html
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3.9 Which are good parameters for encoding high quality MPEG-4?
’-mbd rd -flags +mv4+aic -trellis 2 -cmp 2 -subcmp 2 -g 300 -pass 1/2’, things to try: ’-bf 2’, ’-mpv_flags qp_rd’, ’-mpv_flags mv0’, ’-mpv_flags skip_rd’.
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For msmpeg4 only +aic flag is valid
For mpeg4 bot flags (+mv4+aic) are valid
I also tried AVC-Intra-100 encoding - slow on my machine, but apparently produces mp4?
mediainfo /dev/shm/avcintra100.mp4
General
Complete name : /dev/shm/avcintra100.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom (isom/iso2/avc1/mp41)
File size : 879 MiB
Duration : 1 min 5 s
Overall bit rate mode : Constant
Overall bit rate : 113 Mb/s
Writing application : Lavf58.55.100
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High 4:2:2 Intra at L4.1
Format settings, CABAC : No
Format settings, GOP : N=1
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 1 min 4 s
Bit rate mode : Constant
Bit rate : 114 Mb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 25.000 FPS
Color space : YUV
Chroma subsampling : 4:2:2
Bit depth : 10 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 2.193
Stream size : 878 MiB (100%)
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
Codec configuration box : avcC
Audio
ID : 2
Format : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
Codec ID : mp4a-40-2
Duration : 1 min 5 s
Duration_LastFrame : -16 ms
Bit rate mode : Constant
Bit rate : 129 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 44.1 kHz
Frame rate : 43.066 FPS (1024 SPF)
Compression mode : Lossy
Stream size : 1 022 KiB (0%)
Language : Russian
Default : Yes
Alternate group : 1
Of course audio better to be PCM ....
Can anyone check if this file edi(t)able by other video editors?
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