HEVC query - Nexus Player Q&A, Help & Troubleshooting

Hey experts, just a quick (ish) question.
I've recently started getting content in x265 to save space and I'm aware that the nexus player can only use sw decoding to for hevc playback. When i playback videos on the nexus it tends to have a fair bit of artifacts, mainly in dark or similarly coloured areas, and i wanted to know if this is exacerbated by having to use ssw decoding, and if a better android box that could hw decode h.265 would be better, or if it's just a natural result of the cluster style encoding of hevc?

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Rock player lags.......

Ok i have 1080 movie on my vibrant the default player does not support it so i downloaded the rock player. It works in there but it lags.....
Help.... How can i play 1080p on my vibrant
Doesn't 1080p video require more horsepower than is available from a mobile phone ?
Rock player is a software accelerated player vs. The stock hardware accelerated video player. It plays a broader range of codecs but relys on the cpu for video decode so can't do hd video or video with high bitrates.
Unfortunately, you wont be able to make 1080p content watchable on your phone without a reencode at 720p in one of the right formats or less with a non standard format.
Like previous post called into question, the hardware in fact, on current smartphones isn't capable of rendering 1080p content, unless the bitrate is cut down significantly enough as to make it almost unwatchable.
pyun said:
Rock player is a software accelerated player vs. The stock hardware accelerated video player. It plays a broader range of codecs but relys on the cpu for video decode so can't do hd video or video with high bitrates.
Unfortunately, you wont be able to make 1080p content watchable on your phone without a reencode at 720p in one of the right formats or less with a non standard format.
Like previous post called into question, the hardware in fact, on current smartphones isn't capable of rendering 1080p content, unless the bitrate is cut down significantly enough as to make it almost unwatchable.
Click to expand...
Click to collapse
your wrong i just converted the same movie to avi and it works like a charm. VIBRANT DOES PLAY 1080P THE QUALITY IS AMAZING...
You are aware that your phone's resolution is 800x480
1080P resolution is 1920x1080
Therefore, all that extra resolution is for nothing. You're phone can't display more than it can. So 1080P is a waste, 720p is also a waste. EXCEPT for the fact that it is easy to find software to encode to 720p, OR if you are going to use video out.

[Q] CM7/Gingerbread Video Playback

Hi everybody. I am running Phiremod 6.2. What I really want is to be able to drop a standard definition video on the sd card, such as a divx or xvid file on the and have it play back smoothly on the nook. It seems that hardware video decryption doesn't work and that is the reason we are stuck using software decryption. What is the best video player? Even with the best video player, do you still need to re-encode the videos to lower resolution for proper playback? What format do you re-encode video to? Do we expect hardware video decryption to be accomplished by the amazing xda hackers?
Thanks!
I use Mobo player for playback. Have encoded several standard def videos from a TV series using Handbrake with the nookcolor preferences created by someone else on this forum, in H.264 format. They look and sound very good this way, except it does not fill the screen which is expected as it is standard def. Have not tried any HD content yet.
waldes said:
Hi everybody. I am running Phiremod 6.2. What I really want is to be able to drop a standard definition video on the sd card, such as a divx or xvid file on the and have it play back smoothly on the nook. It seems that hardware video decryption doesn't work and that is the reason we are stuck using software decryption. What is the best video player? Even with the best video player, do you still need to re-encode the videos to lower resolution for proper playback? What format do you re-encode video to? Do we expect hardware video decryption to be accomplished by the amazing xda hackers?
Thanks!
Click to expand...
Click to collapse
Isn't Phiremod just a modded CM7? CM7 suppports hardware decoding, for up to 480p files (max 854x480). Anything beyond that will be soft decoded. Anything that isn't expressly supported by Nook's "supported" video/audio formats are, afaik, also software decoded (the base player will not do this, need something like vitalplayer or rockplayer, etc.)
- If a video is just not a supported format but is 480p and under, it runs very smoothly for me in CM7 as software decoded -- you wouldn't be able to tell that it wasn't hardware accelerated.
- If a video is higher than 480p (720p, etc) or the bitrate is too high, even if it is the supported format, it will also attempt to be software decoded. My experience with this is that it's poor quality (stutters, audio desync a lot of times, etc.)
MP4 container, H.264 baseline codec for video conversion. Anamorphic loose, 854x480. AAC / MP3 (I forget what else is supported) codecs for audio, choose 44.1 khz sampling rate instead of 48khz to avoid problems. Bitrate for video and audio are up to you, but I wouldn't use the lossless setting for H.264 because you'll have issues with it playing (and will be an enormous file). You also really don't need to use it for a 7" screen. For me, video bitrate of 800 kbps (avg) is low but acceptable, 1100 for medium, 1500 is (non-HD) dvd quality. 128-160 kbps audio, your choice.
There's a lot of players out on the market, many free. I like Vital Player Neon a lot but the paid app version failed on me because of their self-copy protection. I use Moboplayer and also installed the Neon codec from the dev's website, it improved my performance noticeably on some more system-intensive videos.
As always, YMMV.
LBN1 said:
I use Mobo player for playback. Have encoded several standard def videos from a TV series using Handbrake with the nookcolor preferences created by someone else on this forum, in H.264 format. They look and sound very good this way, except it does not fill the screen which is expected as it is standard def. Have not tried any HD content yet.
Click to expand...
Click to collapse
Is the <-> (vs >-<, etc options) not working for you to expand it to full screen? I have not had any issues getting 480p content to edge-to-edge (provided it's 16:9 aspect ratio, which many shows and movies are. While Nook's resolution isn't true 16:9 it's close enough that you won't notice any real edge). The only videos that display with bars for me are the wider aspect ratio ones.
(On stock rooted firmware, with 1.1Ghz OC)
I also use handbrake... encoding to 1024x576 xvid seems to do the trick with mobo player. (Altough so far I tried only one video file.)
edit: tried an other one, plays almost perfectly in sync. It is about 1 frame out-of-sync that can only be noticed with hard, fast sounds like slapping.
Encoding to h264 with the said resolution results in video being played back slower and of course audio being out of sync.
480p h264 baseline / aac mp4 files can be hardware decoded and play nice, but I'm all for the bigger resolution.
angomy said:
Is the <-> (vs >-<, etc options) not working for you to expand it to full screen? I have not had any issues getting 480p content to edge-to-edge (provided it's 16:9 aspect ratio, which many shows and movies are. While Nook's resolution isn't true 16:9 it's close enough that you won't notice any real edge). The only videos that display with bars for me are the wider aspect ratio ones.
Click to expand...
Click to collapse
The ones I did were not in 16:9 aspect ratio, they were 4:3 which is why I believe I could not expand them to full screen. I haven't yet tried a 16:9 video like a movie but will soon.
in addition to the formats/resoluton mentioned try using Vital Player Neon - works with a lot of formats - plays really smooth on my NC (CM7 7.02+1.3GHzOC)
Thanks a bunch!

[Q] Play HD mkv movies

I'm using rooted official 2.3 rom. when I play mkv 720p movies , video plays at lower frame rate than usual and problem in audio video sync. I use mx player and hardware decoder is not available for mkv. can please anyone suggest me some tips to play 720p smoothly. and is there hardware decoding available in new adreno driver in dzo ics for mkv?
I m using bsplayer lite tha supports mkv.
720p on nearly 480p device?
Professionals can correct me, there are few reasons why it won't play in full speed:
1) .mkv files need usually the same space as .mp4, but it has better quality. BUT needs more power to play. That is the disadvantage of matroska. So if there is too high bitrate on the video, it lags/wents off sync. Overclocking might help.
2) 720p??! Really? This phone CAN record 720p video with good fps, but only in good light conditions. You can even watch them (because they are so low-bitrate), but if you have like 720p movie, it lags due to high bitrate it needs to look clear. BUT why would you want to play 1280x720 (16:9 ) resolution video in 800x480 (16:10) resolution screen? Shapes will look odd... I would prefer 480p (854x480).
3) I'm guessing that your movie is on your memorycard? If your memorycard is too slow, can that be the reason for lagging too. This can be fixed with faster memorycard.
4) Switch to Moboplayer. I don't have any experience of mxplayer, but Moboplayer can use hardware decoding for that.

10-bit video hardware decoding

Since I don't think it's been mentioned in any reviews or anything yet, unfortunately the Z1 Compact doesn't support hardware decoding of 10-bit colour video, not even at 720p.
That being said, the snapdragon 800 is thankfully just about fast enough to play 720p 10-bit with styled subtitles smoothly through software decoding. 1080p is unwatchable (major frame drops).
Hopefully this helps someone researching the phone for anime watching purposes (it is sad that so many fansub groups have turned to this colour format)
Darkimmortal said:
Since I don't think it's been mentioned in any reviews or anything yet, unfortunately the Z1 Compact doesn't support hardware decoding of 10-bit colour video, not even at 720p.
That being said, the snapdragon 800 is thankfully just about fast enough to play 720p 10-bit with styled subtitles smoothly through software decoding. 1080p is unwatchable (major frame drops).
Hopefully this helps someone researching the phone for anime watching purposes (it is sad that so many fansub groups have turned to this colour format)
Click to expand...
Click to collapse
I have tried several hi10 720p anime vids, using bsplayer with an option "hardware decoding for hi10" enabled and had no problems playing any of them. Not sure if it was really software decoder or not, but in any case vids played perfectly (no frame drops, full color, no problem with sound)
ziprar said:
I have tried several hi10 720p anime vids, using bsplayer with an option "hardware decoding for hi10" enabled and had no problems playing any of them. Not sure if it was really software decoder or not, but in any case vids played perfectly (no frame drops, full color, no problem with sound)
Click to expand...
Click to collapse
Yep 720p does play perfectly, as the cpu is fast enough.
Using MX Player you can see that it fails to play with hardware and reverts to software decoding
Screen is 720p after all. No point of 1080p playing in terms of picture quality.
Option58 said:
Screen is 720p after all. No point of 1080p playing in terms of picture quality.
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Click to collapse
Maybe because you can hook it to 1080p monitor using mhl? I see no point using the phone with monitor if you also have desktop/laptop nearby though.
How about the subtitle? Is it easy to read it for prolonged time? I try to watch on my xperia ray before, but I guess 3.3 inch display is really too small to watch it comfortably.
A phone is never as good as PC, blu-ray players and such in terms of picture quality when viewing movies at home. I see no point in plugging to external monitor for that.
HDMI is used to show your pictures and videos taken by phone camera to your family.
EDIT: Oh wait yeah, plugging it on hotel TV and using it as a media player is a good use indeed. But 720p is good enough for hotel TV's.
And let's not forget it can play 1080p MKV movies but only not those hardcore quality animes.
Just to clarify the focus isn't really on the fact that it can't play 1080p 10-bit, but the fact that it has to use software decoding for 720p 10-bit. The battery drain is going to be quite significant to say the least, even if the playback quality is perfect (which it is).
For perspective, a snapdragon 600 can't handle software decoding of 720p 10-bit, so it's very cpu intensive
I'm glad that I'm already fine with just ripping videos from streaming links hahaha! And oh I can watch animes with subtitles fine on my Nokia n95 years ago... I'm pretty sure I can live with Xperia Z1 Compact's screen.

Firestick 4K video tests

Not comprehensive, but did grab a bunch of samples with some key differences (264/265 8/10 bit, 1080p/2160p, 60FPS) just to see what this stick could handle. My test bed was MX Player with the all-in-one decoder pack.
Smooth Playback via HW/HW+
- h.264 8bit 1080p
- x.265 8bit 1080p
- x.265 10bit 2160p
- x.265 10bit 2160p 60FPS
SW only
- h.264 10bit 1080p (LOTS OF DROPPED FRAMES - yuck)
Conclusions
Great hardware decoding, but CPU not strong enough for SW-h.264/10bit (a semi-popular anime format). I'm not sure if any SoC supports this in HW, but so far it seems like only high-end SoCs can handle this in SW (I have a Kirin 660 device which does a good job).
Thank for sharing your results.
These are very different from my testing.
I have multiple issues with playback, very annoying.
See: https://forum.xda-developers.com/showpost.php?p=78329629&postcount=5
Do you have these problems also? Or do I have a corrupt stick?
The MX devs replied stating that media server process has died during playback, forcing MX to try a different playback modus. And that they probably cant solve it.
It seems so weird to me, since then everybody should have these issues.

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