display yuv420p on android

I use ffmpeg to decode flv frame to yuv420p.But I don't know how 开发者_开发百科to display it on android help me please!!

I recently published some code we were using for FFMPEG on Android:

https://github.com/churnlabs/android-ffmpeg-sample/blob/master/jni/native.c

That first function, fill_bitmap(), fills an Android bitmap with the contents of an AVFrame buffer.

Not the most efficient way to do it, but it's working code. The Android bitmap is an ARGB_8888 and I just set the alpha to zero. Seemed like the best match for the formats the sws_scale() contexts supported.

yuv420p format is not supported on android. you need to convert to one of the formats android supports. find the formats here. You can use FFMPEG's sws_scale function to convert the format from yuv420p to one of the required formats.

Alternatively you can also look at ffplay.c or ffmpeg tutorial for how the conversion is performed.