[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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