CODEWITHSUNDEEP
androidvideogoogle-glass
user3392760
user3392760

Reputation: 11

H.264 hardware encoding for live video stream from Google Glass

I am trying to make a video stream from Google Glass to a local server. For start, as a test, I've tried the SpyDroid v9.1. The streaming using H.263 encoding works perfectly, but the quality is not quite good. When trying to live stream with an H.264 hardware encoding, the connection fails. The received error is: "Error: stsd box could not be found", thrown from here:

public StsdBox getStsdBox() throws IOException {
                try {
                        return new StsdBox(fis,getBoxPos("/moov/trak/mdia/minf/stbl/stsd"));
                } catch (IOException e) {
                        throw new IOException("Error: stsd box could not be found");
                }
        }

Also, since for now Glass has Android 15, the MediaCodec class (android.media.MediaCodec) is not available(Media API was added in Android 16).

A similar issue was raised to Google, but no real working solution: a. https://code.google.com/p/google-glass-api/issues/detail?id=207. b. https://code.google.com/p/spydroid-ipcamera/issues/detail?id=129

Does anyone know how can a H.264 hardware encoding live video stream can be sent from Google Glass?

Any help/guide on this issue is much appreciated.

Upvotes: 1

Views: 1367

Answers (1)

n0p
n0p

Reputation: 21

The SoC in glass does not support VP8, only h263/h264 and since google is pushing for VP8 on all its products there will be no hw acceleration provided by google on the glass. Source: last IO's talk on glass software development.

A possible solution is porting the gstreamer-ducati libraries to glass and using them to directly talk to the video acceleration hardware on the omap4 SoC (IVA-HD).

Upvotes: 2

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