Closed sledesm closed 6 years ago
Thanks so much for the feedback! I always like examples, and I would like to add it. Either make a fork and send me a pull request, or write the code somewhere and I will add it. Did you use the Camera and ImageWriter?
JP
I used Camera and ImageEncoder. I do not know about ImageWriter.
I saw your request, getting my PI from my pile and I will try!
I just added another commit, to solve the problem of the buffer length on the stream. Here is a code snippet from the sample application that I am building
var ws = require('stream').Writable();
var recBuffer = null;
ws._write = function (chunk, enc, next) {
var nextPart = chunk;
if (chunk.onBufferDone) {
if (chunk.usedLength !== undefined && chunk.usedLength < chunk.length) {
// console.log("Getting buffer to smaller size")
nextPart = chunk.slice(0, chunk.usedLength);
}
if (!recBuffer) {
recBuffer = nextPart;
} else {
recBuffer = concat([recBuffer, nextPart]);
}
riseCore.emit("omx-camera-frame", recBuffer);
recBuffer = null;
chunk.onBufferDone();
} else {
if (recBuffer) {
recBuffer = Buffer.concat([recBuffer, chunk]);
} else
recBuffer = Buffer.from(chunk);
}
next();
};
I merged it, however it does not work for me, _write
isn't called.
Hi,
I am using the code of npm 1.6.0
I went to the node_modules/openmax/dist/perf, and copied there the CameraEncode.js example and run it there. It works for me. I run it after running CameraPipe
Regards,
Santi.
On Tue, Sep 12, 2017 at 7:14 PM, Jean-Philippe Bergeron < notifications@github.com> wrote:
I merged it, however it does not work for me, _write isn't called.
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Hi
Could you make it work?
I post you a screenshot of what I'm doing right now. I am using 4 raspberry pis and websockets. I get around 25 fps sending jpg frames and around 6% cpu in the raspberry pi.
Would you be so kind to publish a new version of the module with the latest change? It is needed for the jpg transmission because otherwise the system cannot know if a frame has finished or not when encoding using discrete frames coming out of the Encoding component.
Regards,
Santi.
On Tue, Sep 12, 2017 at 7:20 PM, Santiago Ledesma sledesm@gmail.com wrote:
Hi,
I am using the code of npm 1.6.0
I went to the node_modules/openmax/dist/perf, and copied there the CameraEncode.js example and run it there. It works for me. I run it after running CameraPipe
Regards,
Santi.
On Tue, Sep 12, 2017 at 7:14 PM, Jean-Philippe Bergeron < notifications@github.com> wrote:
I merged it, however it does not work for me, _write isn't called.
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I did not get it to work, I get an invalid parameter exception... It might be a problem with my PI. Your stats are pretty impressive, PIes are cool!
No problem, I just did push 1.6.1
JP
Txs!
On Thu, Sep 14, 2017 at 4:04 PM, Jean-Philippe Bergeron < notifications@github.com> wrote:
Closed #7 https://github.com/jean343/Node-OpenMAX/issues/7.
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How could I contribute to this project? I have made a simple example which allows to stream the camera frames into pngs very quickly. there are other applications online, but they are either bulky or very slow.