Offering up some short test files

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gdpodesta
Posts: 33
Joined: Tue Mar 26, 2019 6:11 pm

Offering up some short test files

Post by gdpodesta » Tue Feb 11, 2020 4:44 pm

Somewhere I saw a post about eventually having a library of short test files. I have some that I use that may be of use - not sure how "technically" wonderful they are, but I generally just use them for baselines and processing/timing checks.

The video is a test pattern with a running timecode with whitenoise audio.
2-11-2020 8-05-18 AM.jpg
2-11-2020 8-05-18 AM.jpg (61.57 KiB) Viewed 491 times
There are 12 mp4 (291mb total), 1,5 & 30 minutes versions of 480p,720p,1080p & 2160p

Code: Select all

01min_0480p_858x480_SD.mp4
01min_0480p_858x480_SD_AUDIO.mp4
01min_0720p_1280x720_Hdready.mp4
01min_1080p_1920x1080_FullHD.mp4
01min_2160p_3860x2160_4K.mp4
05min_0480p_858x480_SD.mp4
05min_0720p_1280x720_Hdready.mp4
05min_1080p_1920x1080_FullHD.mp4
05min_2160p_3860x2160_4K.mp4
30min_0480p_858x480_SD.mp4
30min_0720p_1280x720_Hdready.mp4
30min_1080p_1920x1080_FullHD.mp4
30min_2160p_3860x2160_4K.mp4

Code: Select all

General
Complete name                            : 05min_1080p_1920x1080_FullHD.mp4
Format                                   : MPEG-4
Format profile                           : Base Media
Codec ID                                 : isom (isom/iso2/avc1/mp41)
File size                                : 9.81 MiB
Duration                                 : 5 min 0 s
Overall bit rate                         : 274 kb/s
Writing application                      : Lavf58.20.100

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L4
Format settings                          : CABAC / 4 Ref Frames
Format settings, CABAC                   : Yes
Format settings, Reference frames        : 4 frames
Codec ID                                 : avc1
Codec ID/Info                            : Advanced Video Coding
Duration                                 : 5 min 0 s
Bit rate                                 : 140 kb/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                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.003
Stream size                              : 5.00 MiB (51%)
Writing library                          : x264 core 157 r2935 545de2f
Encoding settings                        : cabac=1 / ref=3 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / subme=7 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=12 / lookahead_threads=2 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=crf / mbtree=1 / crf=23.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00
Codec configuration box                  : avcC

Audio
ID                                       : 2
Format                                   : AAC LC
Format/Info                              : Advanced Audio Codec Low Complexity
Codec ID                                 : mp4a-40-2
Duration                                 : 5 min 0 s
Bit rate mode                            : Constant
Bit rate                                 : 128 kb/s
Channel(s)                               : 2 channels
Channel layout                           : L R
Sampling rate                            : 48.0 kHz
Frame rate                               : 46.875 FPS (1024 SPF)
Compression mode                         : Lossy
Stream size                              : 4.59 MiB (47%)
Default                                  : Yes
Alternate group                          : 1

pperquin
Posts: 1
Joined: Wed Feb 12, 2020 9:16 am

Re: Offering up some short test files

Post by pperquin » Wed Feb 12, 2020 9:18 am

Hi,

Interresting, can you share the link ?

regards

gdpodesta
Posts: 33
Joined: Tue Mar 26, 2019 6:11 pm

Re: Offering up some short test files

Post by gdpodesta » Wed Feb 12, 2020 3:41 pm

Not sure where they might live forever, but here's a link that should last for awhile anyways.
https://scctv-share.s3.us-west-2.amazon ... index.html

admin
Site Admin
Posts: 1361
Joined: Sat Feb 08, 2014 10:39 pm

Re: Offering up some short test files

Post by admin » Fri Feb 14, 2020 1:40 pm

Hi gdpodesta,

Nice initiative! It's always nice to have some test files and there's a lot of them around.
However, too many of them have too much compression and too few chroma samples. If were to host test files we would like higher quality. Test files are usually created using a high quality coder, or sometimes uncompressed. These are the preferred files but they are rather large, and currently ffastrans.com don't have that kind of storage service. So until we do you must use other means of sharing test files. Or if quality is not of essence one can always use youtube like many others do.

-steinar

gdpodesta
Posts: 33
Joined: Tue Mar 26, 2019 6:11 pm

Re: Offering up some short test files

Post by gdpodesta » Fri Feb 14, 2020 5:32 pm

Fair enough, I just used them for processing tests, and time-specific tests, so the Video quality is of no concern, its the timing of the process and how the video duration factors into my life,lol. Anyways, if they're of no use, you can just delete the post altogether and I don't have to worry about where the files need to live. Thanks :)

admin
Site Admin
Posts: 1361
Joined: Sat Feb 08, 2014 10:39 pm

Re: Offering up some short test files

Post by admin » Fri Feb 14, 2020 9:14 pm

No need to delete the post :-) It's just that we, the FFAStrans team prefer higher quality test files because video quality is of great concern to us. FFAStrans ability to convert files as close to the original as possible is important, and to measure that we need high quality files. One can always create low quality test files from high quality, but you can't go the other way around.

-steinar

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