How is it trailers on Youtube are so sharp, but my videos are not

[poisondeathray]

If you watch the CPU usage - everytime you spike to 100%, you drop frames, so playback won't be smooth.

Does that integrated chip have any video playback support, maybe through DXVA ? Download DXVA Checker and check

The T3500 is an early generation dual core penryn. It's insufficient for 1080p59.94 AVC CPU decoding. Maybe consider 720p59.94. You can also use something less compressed, and/or less compressed h264 settings such as --tune fastdecode in x264 with appropriate vbv settings , and short GOP. MPEG2 is easier to decode as well, and is cineform that I mentioned earlier.

[Bencuri]

It shows this listing:

[budwzr]

So Mpeg2 would likely be OK? Like I mentioned earlier?

[poisondeathray]

Yes, mpeg2 should be ok .

But it says VC1 has DXVA1/2 support , and he said he had problems with the mercalli VC1 version.

You might have to configure some things in your media player to use DXVA, or there might be some limitations on certain profiles / framerates and resolutions

[Bencuri]

I have reconverted the video of my JVC Camcorder that plays the best among raw files from all my camcorders.

I converted it to mpgeg, only deinterlaced it, bitrate and resolution remained the same. Unfortunately this alone does not solve my problem and is not much improvement, there are still jumps, not even less than in case of the raw file. So I wonder in case I need to lower resolution and bitrate, to have the file play smooth, is it worth at all to convert to mpeg, or better remain at AVC? In case I would remain at AVC, what would be the best to do to retain as much sharpness as possible? I guess if I downconvert to HD, and leave the bitrate untouched, it can still be relatively sharp. But in case that is not enough, what should be done: modify the gop first or the bitrate? Which can gives better results? I would like to preserve as much sharpness as possible, so later I can get the best possible image on Youtube.

This is the file info:

General
Complete name : C:\Users\Hallgato\Videos\00045.mpg
Format : MPEG-PS
File size : 524 MiB
Duration : 3mn 0s
Overall bit rate mode : Variable
Overall bit rate : 24.4 Mbps

Video
ID : 224 (0xE0)
Format : MPEG Video
Format version : Version 2
Format profile : Main@High
Format settings, BVOP : No
Format settings, Matrix : Default
Format settings, GOP : M=1, N=12
Duration : 3mn 0s
Bit rate mode : Variable
Bit rate : 23.8 Mbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate : 29.970 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Compression mode : Lossy
Bits/(Pixel*Frame) : 0.383
Stream size : 511 MiB (97%)

Audio
ID : 192 (0xC0)
Format : MPEG Audio
Format version : Version 1
Format profile : Layer 2
Duration : 2mn 59s
Bit rate mode : Constant
Bit rate : 128 Kbps
Channel(s) : 2 channels
Sampling rate : 44.1 KHz
Compression mode : Lossy
Stream size : 2.74 MiB (1%)


This is the raw file info:

Complete name : C:\Users\Hallgato\Desktop\00045.MTS
Format : BDAV
Format/Info : Blu-ray Video
File size : 523 MiB
Duration : 3mn 2s
Overall bit rate mode : Variable
Overall bit rate : 24.0 Mbps
Maximum Overall bit rate : 24.0 Mbps

Video
ID : 4113 (0x1011)
Menu ID : 1 (0x1)
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.0
Format settings, CABAC : No
Format settings, ReFrames : 2 frames
Format settings, GOP : M=2, N=14
Codec ID : 27
Duration : 3mn 2s
Bit rate mode : Variable
Bit rate : 22.6 Mbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate : 29.970 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Interlaced
Scan order : Top Field First
Bits/(Pixel*Frame) : 0.364
Stream size : 496 MiB (95%)

Audio
ID : 4352 (0x1100)
Menu ID : 1 (0x1)
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Format settings, Endianness : Big
Codec ID : 129
Duration : 3mn 2s
Bit rate mode : Constant
Bit rate : 256 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Compression mode : Lossy
Delay relative to video : -34ms
Stream size : 5.57 MiB (1%)

Text
ID : 4608 (0x1200)
Menu ID : 1 (0x1)
Format : PGS
Codec ID : 144
Duration : 3mn 2s
Delay relative to video : -34ms

[poisondeathray]

Bottom line is you have hardware and/or configuration problems . Converting it won't really make it any smoother for playback on youtube

The smoothest, highest quality from your 1080p59.94 camera will actually be 1080p59.94, which youtube supports now. People that can play that back properly will have the highest quality, smoothest image



For your computer locally (computer playback) , try adjusting the settings to see if mpeg2 can get accelerated by DXVA. If not, then try 720p60.

[Bencuri]

I have tested this video with Media Player Classic setting the DXVA on:


Format : BDAV
Format/Info : Blu-ray Video
File size : 523 MiB
Duration : 3mn 2s
Overall bit rate mode : Variable
Overall bit rate : 24.0 Mbps
Maximum Overall bit rate : 24.0 Mbps

Video
ID : 4113 (0x1011)
Menu ID : 1 (0x1)
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.0
Format settings, CABAC : No
Format settings, ReFrames : 2 frames
Format settings, GOP : M=2, N=14
Codec ID : 27
Duration : 3mn 2s
Bit rate mode : Variable
Bit rate : 22.6 Mbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate : 29.970 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Interlaced
Scan order : Top Field First
Bits/(Pixel*Frame) : 0.364
Stream size : 496 MiB (95%)

It didn't play smoothly, plays like in any other players, there are jumps.

Then I converted it to Mpeg-2 720p 30fps 24mbps, there are still jumps in the video.

Tried to convert to AVC 1080p 30fps 8mbps, the playback is significantly better. But there are still some minor jumps occasionally, almost unnoticeable.

All in all, on the desktop computer the playback is not as good as on TV where it is flawless, and going down below 8mbps doesn't seem to be a good idea to me due to the quality loss. I watch the videos on TV instead in the original format.

I am not surprised however that Youtube playback is that bad when even the computer cannot play the video fine. But it is not only me. I have been contacted by a guy recently, who has just purchased an i5 laptop, the symptoms there are the same. Videos play better than before, but not free of jumps.

You know, this is just ridiculous. We are 25 years past VHS, and this is a problem we just didn't have back then, at least when the tape was new and clean. We are living with a more advanced technology now, and it is just not possible for a regular user to play back digital video smoothly without tweaking the compuer for weeks. This is a joke. And we are talking about only 8mbps videos now... When in the shops Panasonic X920 is sold with 28.