How Nook's video capability? 720 RMVB? MP4?
- Thread starter tomorrowneverdie
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Your NOOkcolor supports the following video file formats: 3gp, 3g2, mp4, m4v; MPEG-4 Simple Profile up to 854x480; H.263 up to 352x288; H.264 Baseline profile up to 854x480
Your NOOKcolor will not support the following video file formats: Flash (Flv/swf); Mov/qt; AVI; MKV; Xvid/divx; WMV / VC-1; H.264 Main and High profile; and videos with a resolution higher than 854x480
So far for me, 854x480 h.264 has provided the best results, mpeg4 has more compression artifacts. There's a profile posted on here somewhere for handbrake to convert to the proper format. VLC convert and stream also transcodes to h.264 if you want to stream from a media server or PC without having to convert the files.
For it to work properly with hardware acceleration, I think only android 2.1 (stock/rooted) and 2.2 have full support.
Uh if there's audio sync issues . . . how exactly is it playing videos "perfectly" ???
As has been described already, MP4 videos encoded using H.264 baseline at a resolution at or below 854x480 work well in the stock player. Beyond that, 3rd party video players aren't performing well enough for me to accept as "perfect".
I've tried Rockplayer, Vital Player and VPlayer and none of them play raw AVI files (xvid) that I watch from EZTV to my satisfaction. The only thing that works for me is to re-encode them using Handbrake and the Handbrake preset that's available in this forum with a constant quality setting of 22.
The video part of the video plays fine. The audio part of the video does not.Uh if there's audio sync issues . . . how exactly is it playing videos "perfectly" ???
Don't misunderstand me, I've done my own testing. The point I'm making is if people read such statements and then try to watch videos they'll be disappointed in the fact that there are indeed sync issues.
I'd never describe the playback of a video file with audio sync issues as "perfect". IMO the only way playback would qualify as perfect is if there are no dropped frames and no audio sync issues. That's not the case in any of the solutions i've read on these forums when it comes to AVI or MKV playback.
Nook Color's video player performance is underwhelming at the moment in regards to 720p playback. I'm no sure how the Archos 70 could play it just fine.
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Okay, just to clarify concerning 720p.
Nook Color has a single-core 800mhz processor.
I have found that a single-core 1.4ghz processor is very marginal for 720p - most don't work, even with the most CPU-efficient software decoding ("core").
Generally 1.6-1.8ghz is the minimum required.
So, the only remaining question is whether the graphics chipset will actually support 720p hardware acceleration through a change in the software:
by the way, the audio chip is awesome:
Description
The TLV320DAC3100 is a low-power, highly integrated, high-performance stereo audio DAC with 24-bit stereo playback and digital audio processing blocks.
The device integrates headphone drivers and speaker drivers. The mono speaker driver can drive loads down to 4 . The TLV320DAC3100 has a suite of built-in processing blocks for digital audio processing. The digital audio data format is programmable to work with popular audio standard protocols (I2S, left/right-justified) in master, slave, DSP, and TDM modes. Bass boost, treble, or EQ can be supported by the programmable digital signal-processing block. An on-chip PLL provides the high-speed clock needed by the digital signal-processing block.
View full Description in Datasheet
Features
Stereo Audio DAC with 95-dB SNR
Supports 8-kHz to 192-kHz Sample Rates
Mono Class-D BTL Speaker Driver (2.5 W Into 4- or 1.6 W Into
Two Single-Ended Inputs With Mixing and Output Level Control
Stereo Headphone/Lineout and Mono Class-D Speaker Outputs Available
Microphone Bias
Headphone Detection
25 Built-in Digital Audio Processing Blocks (PRB_P1 – PRB_P25) Providing Biquad and FIR Filters, DRC, and 3-D Structures
Digital Mixing Capability
Pin Control or Register Control for Digital-Playback Volume-Control Settings
Digital Sine-Wave Generator for Beeps and Key Clicks (PRB_P25)
Programmable PLL for Flexible Clock Generation
I2S, Left-Justified, Right-Justified, DSP, and TDM Audio Interfaces
I2C Control With Register Auto-Increment
Full Power-Down Control
Power Supplies:
Analog: 2.7 V–3.6 V
Digital Core: 1.65 V–1.95 V
Digital I/O: 1.1 V–3.6 V
Class-D: 2.7 V–5.5 V (SPKVDD ≥ AVDD)
Are there manual settings that I can program into Baddaboom? I use that for video encoding as it supports CUDA on my graphics card reducing encode times up to 70% at times.
FWIW "Saving Private Ryan" as both an avi and mp4 have played just fine on my rooted NC (Rockplayer).
In handbrake, the iPod/iPhone profiles produce video files which work fine on the NC (up to 854x480). So if Baddaboom has profiles for those devices, give those a shot. If you want try to tweak the settings manually, the magic configuration in handbrake is:
Set max B-frames to zero
Turn off CABAC entropy coding
Turn off 8x8 transform
Turn off weighted P-frames
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THANK YOU for that! I've been using rockplayer and having a couple different problems which put me trying different encoding methods last night (different sizes/audio settings, etc, etc.)
Rockplayer is simply inferior to the V7 "Neon" version of MoboPlayer. Very excited about this software find! Thanks!
On the 720p resolution thing:
The Nook's display is 1024x600. 720p video is 1280x720. Playing 720p format videos is overkill. You can convert it down to a smaller size (working on the "best" settings right now in my "Things I Learned" thread.)
Apparently the hardware accelleration only works on up to 854X480 MAX. Anything less than this is scaled up/down to that before run through a hardware scaling up to fullscreen (1024x600).
I find for software playing (for now) 854 width is doable, but 720 width (480p) is nearly the same quality. I'm still playing with the settings, and with the discovery of MoboPlayer, I'm redoing research. I'll be updating my thread with the "best" settings the software player can handle (max 1ghz cpu overclock). Since I'm using a max of 858x480, it should play with hardware accel flawlessly once that is working on CM7 (already works on 2.1/2.2?).
Love this platform.
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1I am wondering how good the Nook's video capability. It seems there is no powerful display adaper driver for it?
How about 720p video support?
Thanks1
Your NOOkcolor supports the following video file formats: 3gp, 3g2, mp4, m4v; MPEG-4 Simple Profile up to 854x480; H.263 up to 352x288; H.264 Baseline profile up to 854x480
Your NOOKcolor will not support the following video file formats: Flash (Flv/swf); Mov/qt; AVI; MKV; Xvid/divx; WMV / VC-1; H.264 Main and High profile; and videos with a resolution higher than 854x480
So far for me, 854x480 h.264 has provided the best results, mpeg4 has more compression artifacts. There's a profile posted on here somewhere for handbrake to convert to the proper format. VLC convert and stream also transcodes to h.264 if you want to stream from a media server or PC without having to convert the files.
For it to work properly with hardware acceleration, I think only android 2.1 (stock/rooted) and 2.2 have full support.1
In handbrake, the iPod/iPhone profiles produce video files which work fine on the NC (up to 854x480). So if Baddaboom has profiles for those devices, give those a shot. If you want try to tweak the settings manually, the magic configuration in handbrake is:
Set max B-frames to zero
Turn off CABAC entropy coding
Turn off 8x8 transform
Turn off weighted P-frames
