Hello!
I have 2 test videos, mpg:
General
Complete name : test.mpg
Format : MPEG-PS
File size : 2.03 GiB
Duration : 5 min 40 s
Overall bit rate mode : Constant
Overall bit rate : 51.2 Mb/s
Video
ID : 224 (0xE0)
Format : MPEG Video
Format version : Version 2
Format profile : 4:2:2@High
Format settings : BVOP
Format settings, BVOP : Yes
Format settings, Matrix : Default
Format settings, picture structure : Frame
Duration : 5 min 40 s
Bit rate mode : Constant
Bit rate : 50.0 Mb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate : 25.000 FPS
Standard : PAL
Color space : YUV
Chroma subsampling : 4:2:2
Bit depth : 8 bits
Scan type : Interlaced
Scan order : Top Field First
Compression mode : Lossy
Bits/(Pixel*Frame) : 0.965
Time code of first frame : 00:00:00:00
Time code source : Group of pictures header
Stream size : 1.98 GiB (98%)
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
Audio
ID : 192 (0xC0)
Format : MPEG Audio
Format version : Version 1
Format profile : Layer 2
Format settings : 50/15ms
Duration : 5 min 40 s
Bit rate mode : Constant
Bit rate : 192 kb/s
Channel(s) : 2 channels
Sampling rate : 48.0 kHz
Frame rate : 41.667 FPS (1152 SPF)
Compression mode : Lossy
Delay relative to video : 40 ms
Stream size : 7.79 MiB (0%)
and mxf
General
Complete name : test.mxf
Format : MXF
Commercial name : IMX 50
Format version : 1.2
Format profile : OP-1a
Format settings : Closed / Complete
File size : 27.3 GiB
Duration : 1 h 2 min
Overall bit rate : 62.6 Mb/s
Package name : Material Package for A-K2SVR3/V:/default/08RO0006M / Source Package for A-K2SVR3/V:/default/08RO0006M
Encoded date : 2013-12-29 10:40:00.000
Writing application : Grass Valley K2 1.0.0.0.0
Writing library : K2 1.0.0.0.0
Video
ID : 2
Format : MPEG Video
Commercial name : IMX 50
Format version : Version 2
Format profile : 4:2:2@Main
Format settings, BVOP : No
Format settings, Matrix : Default
Format settings, GOP : N=1
Format settings, picture structure : Frame
Format settings, wrapping mode : Frame (D-10)
Codec ID : 0D01030102010101-0401020201020101
Duration : 1 h 2 min
Bit rate mode : Constant
Bit rate : 50.0 Mb/s
Width : 720 pixels
Height : 576 pixels
Original height : 608 pixels
Display aspect ratio : 4:3
Active Format Description : Letterbox image with an aspect ratio greater than 16:9
Frame rate : 25.000 FPS
Standard : PAL
Color space : YUV
Chroma subsampling : 4:2:2
Bit depth : 8 bits
Scan type : Interlaced
Scan order : Top Field First
Compression mode : Lossy
Bits/(Pixel*Frame) : 4.823
Time code of first frame : 00:00:00:00
Time code source : Group of pictures header
GOP, Open/Closed : Closed
Stream size : 21.9 GiB (80%)
Title : SP: Video Track #2
Color range : Limited
Transfer characteristics : BT.601
Audio
ID : 3
Format : PCM
Format settings, wrapping mode : Frame (D-10)
Codec ID : 0D01030102010101
Duration : 1 h 2 min
Bit rate mode : Constant
Bit rate : 6 144 kb/s
Channel(s) : 8 channels
Sampling rate : 48.0 kHz
Frame rate : 25.000 FPS (1920 SPF)
Bit depth : 16 bits
Stream size : 2.68 GiB (10%)
Title : SP: BWAV Audio Track#3
Locked : Yes
Other #1
ID : 1-Material
Type : Time code
Format : MXF TC
Frame rate : 25.000 FPS
Time code of first frame : 00:02:57:24
Time code settings : Material Package
Time code, striped : Yes
Title : MP: SMPTE 12M Timecode track #1 with no user bits
Other #2
ID : 1-Source
Type : Time code
Format : MXF TC
Frame rate : 25.000 FPS
Time code of first frame : 00:02:57:24
Time code settings : Source Package
Time code, striped : Yes
Title : SP: SMPTE 12M Timecode track #1 with no user bits
Other #3
Type : Time code
Format : SMPTE TC
Muxing mode : SDTI
Frame rate : 25.000 FPS
Time code of first frame : 00:02:57:24
Both of them
Format : MPEG Video
Format version : Version 2
According to matrix Video Encode and Decode GPU Support Matrix | NVIDIA Developer my tesla t4 must work with mpeg-2 (but im not sure about 4:2:2)
Anyway, whan i launch
ffmpeg -debug_ts -vsync 0 -hwaccel cuda -i test.mpg -vf blackdetect=d=5 -f rawvideo -y /dev/null -progress progressbar11
or
ffmpeg -debug_ts -vsync 0 -hwaccel cuda -i test.mxf -vf blackdetect=d=5 -f rawvideo -y /dev/null -progress progressbar11
*-debug_ts - is for detecting bad nal units and etc
*-vf blackdetect=d=5 - for detecting black scenes
i dont get any accelaration, only cpu is working.
When i do the same with mp4(avc but 4:2:0) - i get abot 50% of dec and 5-10% of sm and enc loading
Where is my mistake?
