320x240 should be OK. The software codecs in emulation may have trouble keeping up 600kbps and 30fps, but you should see some video before it errors out.
Based on the fact that it's failing in prepare(), it seems likely that it's a configuration problem and not a frame-rate or bit-rate issue. Either the file parser or the codec doesn't like something it sees in the configuration stage. Maybe the B-frame setting? On Jan 9, 6:24 pm, Brad A <hashbro...@gmail.com> wrote: > Brad - > > I read another post that talked about the 30 fps spec. Video size is > 320x240. I notice that I only get the VideoSize error when I push the > file to the emulator after starting my app. If I restart the > emulator, then I get the prepare failed error, which is probably the > actual issue. > > Dave - Not sure what the frame size is or how to tell, sorry, not much > video experience. > I was guessing that I only had G1 specs. I can't seem to find > anything definitive about the emulator. > Unfortunately don't have an actual phone right now. I'm creating a > demo for my boss, and will hopefully get one out of it if I can > demonstrate it has some value. > > thanks for your time guys. > > On Jan 9, 7:22 pm, Dave Sparks <davidspa...@android.com> wrote: > > > You left out a key detail - what is the frame size? > > > The specs you quoted are for a G1 device - the emulator is probably > > not quite that good. In addition to running soft codecs in ARM > > emulation, it's also doing color space conversion, scaling, and > > rotation in ARM emulation. > > > On Jan 9, 4:22 pm, Brad A <hashbro...@gmail.com> wrote: > > > > I'm trying to get video functions working on the Android emulator, > > > using the MediaPlayer demo apis app. > > > I'm having a hard time getting a file that is properly encoded. I > > > could use some help understanding the specs and how to meet them. > > > > From what I understand, the emulator cannot handle streaming video, > > > but you can play video locally from an emulated SD Card. Preferred > > > format is H.264 Baseline, which is the same as MPEG-4 AVC. The > > > "Baseline" profile seems to be the key, and what is probably giving me > > > problems. All I really know is that b frames are not supported in > > > that profile. From other information I've seen, looks like you want > > > something with 30 fps and max 600 kbps bitrate. > > > Does that sound correct? > > > > I've created the emulated SD Card and pushed my video to it. I've > > > tested other 3gp videos, that at least played (poorly), so I know I > > > have that part right. But with my mp4 video, I either get an error > > > with getVideoSize returned -1, or prepare failed. > > > > The file I'm trying to play was originally sourced from a flash video > > > off the web, with ext .f4v. I'm using a program called ImToo FLV > > > Converter (any better suggestions?), and setting the target profile as > > > MPEG-4 AVC. I've specified 30fps and a Level of 12, which seems to > > > correspond to Level 1.2 referenced herehttp://en.wikipedia.org/wiki/H.264. > > > It has an "expert" panel where it allows me to enter a b_frames > > > value. I put "False", although I don't know if that's what I should > > > enter there (other options use "False" keyword I noticed). I have an > > > email to their support on that. > > > > After conversion I pull up the file in quicktime and check the movie > > > stats and it shows the file as a H.264 with 30 fps with a bit rate > > > under 600, seems like I'm close to teh specs and the conversion is > > > successful. Still no cigar when using in Android though.. > > > > Can anyone give me some suggestions? I'll post the file if someone > > > has the talent to analze it. > > > > Thanks for taking your time to consider my problem! --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
