i am really not getting anything on net related to this topic. I wanted to do HD video streaming on gingerbread and on ICS. I tried to play various HD video(mp4) locally on blaze ported with gingerbread, but not able to play. First of all i am not getting why it's not able to play video locally.
And the second thing i kept videos on server, but on pandaboard, i am able to hear sound only no picture.
I am wondering no body ever tried to do streaming of HD video. And do we always need to compress those videos to do streaming.
I am really helpless and i searched alot, but there is no solution for this.
Please help.
go through this link http://developer.android.com/guide/appendix/media-formats.html
part to check
Video Encoding Recommendations
Table 2. Examples of supported video encoding parameters.
SD (Low quality) SD (High quality) HD (Not available on all devices)
I guess the device your using is not supporting HD
Related
I am building an app which allows users to upload videos from different devices including android and iOS then stream them from server with VideoView during playback. I end up with different video formats and get the inevitable "Cannot play this video" error on several occasions.
Some research says that videos with format .mp4 and codec H.264 can work on all devices, so I have a few things I am working on.
Convert all videos on server side to the above mentioned format and codec
Use ffmpeg to convert the videos in app during playback
Use VLC sdk which supports a wide range of video formats
I am not sure which if these is the best solution, I have not worked with videos a lot in the past on Android and I am not sure what the pros and cons maybe or if indeed these are viable solutions or if this problem already has a known solution.
We are developing music streaming application for Android devices with adaptive bit rate support. We are using Wowza as streaming server which will stream songs using HLS. We have converted each song into four bitrates and have created smil files which are referred in HLS URLs. So basically final URL will look something like this.
http://streaming.server.name:1935/vod/smil:audiofile.smil/playlist.m3u8.
We have tested the app on multiple android devices ( Android version 4.0 or later ) including Galaxy S2, Galaxy Note I, Sony Experia, Google Nexus etc.. On all these devices the songs are getting streamed except on Galaxy S3. On Galaxy S3 the song starts and plays till 6 secs. After that the song goes in loop and plays again and again 6 sec part.
The same behavior is observed when the above URL is accessed through browser.
We have tried to check wowza logs but no errors were reported.
Has anyone tried such thing on S3 devices. Any guidance on how to debug this issue will be greatly appreciated.
The Android documentation states (not clearly enough though) that the TS container format only supports AAC audio. Your are trying to play HLS with TS segments containing MP3 audio data (which is supported by iOS).
I can share the observation that doing so works on most Android devices, but not on all.
The S-III is an example of that.
Please refer to the Android Supported Media Formats section in the documentation.
Ok. So there are a bagillion different Android devices. I have a video streaming service, works wonderfully for iOS. My app has a live video feature and a saved video clip playback feature (which streams to the device too). I've run some tests on different Android devices and get a whole bunch of different playback results. I am using a 640x480 h.264 base profile video. Streaming that video works only on some devices. For other devices, that same video stream can be made to stream at low resolution and that works on some devices, but still not others. The high profile streaming goes through http://www.wowzamedia.com/ (rtsp) and doesn't work on any Android device (but works on iPhone). The lowest and worst option is Motion JPEG, which works on all tested devices so far.
So my question is, how can I figure out (without having to test every device out on the market) if the device will play: 640x480 h.264 base profile - if that wont work then play the low resolution video - if that doesn't work, default to Motion JPEG.
Also, any idea why my rtsp transcoded through wowza works on the iPhone but not on any Android device (not even the Motorola Atrix)?
Streaming on android is an absolute mess. Most devices don't support anything higher than Baseline 3.0. If you encode for iPhone 3, it should generally work via RTSP. Newer versions of android support HLS, but it's hit or miss and largely dependent on specific devices.
I resolved this problem. Check RTP-realization in your streaming service and x264 profile. My RTSP-server works fine on 90% devices.
p.s
Some video frameworks in different Android versions can implement RTP and RTSP protocols with some differences.
These are some of the links/issues which I have come across, while trying to make streaming work in varied devices.
MediaPlayer seekTo doesn't work for streams
MediaPlayer resets position to 0 when started after seek to a different position
MediaPlayer seekTo inconsistently plays songs from beginning
Basic streaming audio works in 2.1 but not in 2.2
MediaPlayer.seekTo() does not work for unbuffered position
Streaming video when seek back buffering start again in videoView/Mediaplayer
Even the big shots in stackoverflow are wondering about this
If you want just streaming without seeking (which is lame), this can be achieved. But then if you receive a call while you are watching, you will end up from the start.
Does anybody have any luck streaming a high quality video (over 1000kbps) to Android through RTSP?
We currently have low quality video streams (around 200kbps) that work wonderfully over 3G. Now we are trying to serve a high-quality stream for when the user has a faster connection. The high quality videos play smoothly in VLC, but the Android playback seems to drop frames and get blocky, even on a 4 megabit connection.
It seems like the YouTube app uses a plain HTTP download for their high quality videos. This works well and plays smoothly, but will not work for streaming live videos. Has anybody had luck streaming high quality videos to Android through RTSP?
The videos are encoded using H.264, 1500kbps, 24fps, and a 720x480 resolution. In the app, we are using a VideoView to play the videos. We are using Darwin Streaming Server, but we are open to other options if necessary.
Update 6/23/2011
Looking through Darwin some more today. So far, I am just logging the request and session information in a Darwin module.
The original Droid tries to use these settings: 3GPP-Adaptation:...size=131072;target-time=4000. Although that means it wants 4 seconds of buffer, 131Kb only holds about a second of playback at 1200kbps. I understand that 1200kbps is large, but it is necessary for a high quality video (minimal compression on 720x480).
I am trying to force the client to buffer more, but I haven't figured out how to do that yet. I'm just looking through the Darwin Streaming Server source and trying to figure out how they do things. Any Darwin experts out there?
Update 6/24/2011
As it turns out, using plain old HTTP for viewing videos on demand works well with no loss of quality. When we get to live streaming, we will have to look more into RTSP.
Well even if the network is able to transmit at that rate, you still need to decode it. What are you using for decoding? You will probably need to use a NEON accelerated video decoder so you can have a proper framerate, and a decent size buffer... the graphics processor is only as good as the bus that it is in... Also what are your encoding settings and resolution?
Edit: You are encoding those at much to high bitrate, half of that will do fine. Also you need to make sure where the issue lies. Is the mediaPlayer getting the data and failing to stream at a decent framerate, in that case you have to replace the MediaPlayer code with your own player. Is it's network issue then only solution is to lower the bitrate, 600Kbps would be just fine (or 500Kbps video, 128Kbps audio), it's 3x your 200k stream and on a screen this small, the difference is not noticeable.
I'm researching the development of an Android (2.2) app/service that will enable users to record short (I do emphasize short, < 30seconds) video on their phones and then upload that video (HTTP) to a server that will then transcode the video to other formats. That same user can download videos from other Android users and play them.
Now, I get a bit lost with everyones recommended approaches to all the issues in doing something like this because I haven't seen any ask this in a cohesive context. Ideally I would like a non commercial solution to this (as in no vendor/service being needed for the the video hosting/transcoding), but, feel free to include those as a recommendation (I've marked this as a wiki) as I know many like to use youtube and vimeo for the middle layer in all this.
The questions are
What server technologies do you
recommend for hosting and
transcoding?
What technology do you
recommend for streaming the video (it
would be nice to offer a high and
low quality encoding depending on
the users network connection)
What video format and software do you recommend for converting the uploaded video on the server to be viewable later by other Android owners.
Im assuming it's bad to do any transcoding on the phone prior to upload (battery/proc issues), but, if I'm wrong with that assumption what do you recommend?
Some things that may help you...
The video will only need to render on an Android device, and in the future in a webkit html5 browser.
Bandwidth isnt cheap (even with numerous 30 second videos), so a good mix of video quality and video file size is important (streaming if needed to ensure quality vs. download).
This is for android 2.2 devices with a video camera of course and medium to high density screen of 800x400 min.
Open source solutions (server to receive the uploads, code to do the transcoding, server to do the streaming) are preferred, but not required.
CDN's are an option, but I don't think that really figures in to the picture right now.
Check out this page to see all the video formats that Android supports for encoding and decoding.
http://developer.android.com/guide/appendix/media-formats.html
For encoding use FFmpeg or a service like encoding.com