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by sorbonne
Mon Jun 27, 2016 9:59 pm
Forum: Compute Module
Topic: Availability
Replies: 33
Views: 5794

Re: Availability

jamesh wrote:CM3, out soon
great, "soon" when? :roll:
by sorbonne
Fri Jun 17, 2016 8:16 pm
Forum: Camera board
Topic: Is OMX_VIDEO_AVCLevel42 supported?
Replies: 3
Views: 729

Re: Is OMX_VIDEO_AVCLevel42 supported?

This is a function of the firmware, so applicable to all Pi flavours. (I don't know why you couldn't read the first post on the New 8MP Camera - Q&A thread which states this). Thanks for the answer. I did read that post, but was not completely sure if this improvement also applied to the "old" rpi2.
by sorbonne
Fri Jun 17, 2016 5:20 pm
Forum: Camera board
Topic: Is OMX_VIDEO_AVCLevel42 supported?
Replies: 3
Views: 729

Re: Is OMX_VIDEO_AVCLevel42 supported?

yes/no? anybody? 6by9, do you have an idea? thanks.
by sorbonne
Thu Jun 16, 2016 10:58 pm
Forum: Camera board
Topic: Is OMX_VIDEO_AVCLevel42 supported?
Replies: 3
Views: 729

Is OMX_VIDEO_AVCLevel42 supported?

Does the new firmware support OMX_VIDEO_AVCLevel42 on both Rpi2 and Rpi3?
by sorbonne
Fri Jun 10, 2016 10:15 pm
Forum: Compute Module
Topic: What's the status of the CM3?
Replies: 1
Views: 1997

What's the status of the CM3?

Correct me if I am wrong, but when the pi3 was released the powers said the CM3 would be out within the first quarter of the year. So are there any updates about the status of the CM3?
by sorbonne
Sat Apr 30, 2016 6:14 pm
Forum: Camera board
Topic: New 8MP Camera - Q&A thread
Replies: 451
Views: 233457

Re: New 8MP Camera - Q&A thread

It's clearly out of focus. What a shame!
by sorbonne
Thu Apr 28, 2016 5:33 pm
Forum: Camera board
Topic: New 8MP Camera - Q&A thread
Replies: 451
Views: 233457

Re: New 8MP Camera - Q&A thread

6by9 wrote: - 1640x1232 full FOV binned mode, up to 30fps.
Will 1632x1232 or 1664x1232 give ~FOV binned mode?
by sorbonne
Mon Apr 25, 2016 5:57 pm
Forum: Camera board
Topic: New 8MP Camera - Q&A thread
Replies: 451
Views: 233457

Re: New 8MP Camera - Q&A thread

6by9 wrote:I think that covers the main points. If other useful items come out of questions then I'll update that list.
How to distinguish the new camera from old one with MMAL?
by sorbonne
Thu Apr 07, 2016 12:17 am
Forum: Camera board
Topic: H264 1080 height from YUV420
Replies: 6
Views: 2053

Re: H264 1080 height from YUV420

The encoded frame will ALWAYS be a multiple of the macroblock size, which is 16x16. It's only the headers that tell the decoder to crop that image down. Use something like avprobe to confirm what the headers say. The width and height passed to the codec are actually nFrameWidth and nFrameHeight of ...
by sorbonne
Wed Apr 06, 2016 9:21 pm
Forum: Camera board
Topic: H264 1080 height from YUV420
Replies: 6
Views: 2053

Re: H264 1080 height from YUV420

If you're dealing in IL, then you'll want on the input port: format.video.nFrameWidth = 1920; format.video.nFrameHeight = 1080; format.video.nStride = 1920; format.video.nSliceHeight = 1088; format.video.eColorFormat = OMX_COLOR_FormatYUV420PackedPlanar; nBufferSize = (format.video.nStride*format.v...
by sorbonne
Tue Apr 05, 2016 8:28 pm
Forum: Camera board
Topic: H264 1080 height from YUV420
Replies: 6
Views: 2053

Re: H264 1080 height from YUV420

Set up the port format correctly and you can encode 1920x1080 using buffers without tunneling. thanks, the layout is clear now. Do you know what height it is expected on both input and output ports and what should be the value of bufferLen if I want to submit the 1920x1080 buffer you described befo...
by sorbonne
Tue Apr 05, 2016 7:44 am
Forum: Camera board
Topic: H264 1080 height from YUV420
Replies: 6
Views: 2053

H264 1080 height from YUV420

How does the tunneled h264 encoder component work to obtain an encoded 1920x1080 (where the height is not multiple of 16) from a (1920x1088?) YUV420 image which should be multiple of 16? Is there any way to do the same without tunneling the components?
by sorbonne
Mon Mar 07, 2016 12:23 am
Forum: Compute Module
Topic: Compute module 3 details?
Replies: 40
Views: 19726

Re: Compute module 3 details?

6by9 wrote:Yes. It's one of the things I'm about to double check still works.
and do you have any details about the future camera modules?
by sorbonne
Sun Mar 06, 2016 8:54 pm
Forum: Compute Module
Topic: Compute module 3 details?
Replies: 40
Views: 19726

Re: Compute module 3 details?

what about the dual cameras? will this be supported?
by sorbonne
Thu Feb 25, 2016 8:42 pm
Forum: Camera board
Topic: Max. size of I-Frames
Replies: 3
Views: 692

Max. size of I-Frames

Given width, height, frame rate, bitrate, baseline profile level 4, is there a reliable formula to calculate the maximum size of any I-Frame that can be produced by the h264 encoder?
by sorbonne
Tue Feb 23, 2016 10:12 pm
Forum: Camera board
Topic: Delay introduced by text annotation
Replies: 1
Views: 461

Delay introduced by text annotation

Does text annotation in the GPU introduce any delay on the produced frames?
by sorbonne
Sat Feb 06, 2016 1:57 am
Forum: Camera board
Topic: What is the max. frame rate in yv12?
Replies: 2
Views: 639

What is the max. frame rate in yv12?

Hi,

do you know what is the maximum frame rate for 1080p video in YV12 from the camera? I get at most ~21 fps, no way to reach 30 fps as in h264.
Is it an hardware limit?

thanks
by sorbonne
Wed Feb 03, 2016 7:46 pm
Forum: Camera board
Topic: OMX H264 encoder, periodic IFrames and delay
Replies: 16
Views: 4288

Re: OMX H264 encoder, periodic IFrames and delay

Enable inline headers and you will get buffers containing something like: - nFlags = OMX_BUFFERFLAG_CODECCONFIG | OMX_BUFFERFLAG_ENDOFFRAME (headers) - nFlags = OMX_BUFFERFLAG_ENDOFFRAME | OMX_BUFFERFLAG_SYNCFRAME (I-frame) - nFlags = OMX_BUFFERFLAG_ENDOFFRAME (P-frame) ... - nFlags = OMX_BUFFERFLA...
by sorbonne
Tue Feb 02, 2016 11:10 pm
Forum: Camera board
Topic: OMX H264 encoder, periodic IFrames and delay
Replies: 16
Views: 4288

Re: OMX H264 encoder, periodic IFrames and delay

Nothing special about requesting an I-frame - it just sets a flag on the next job submitted to the encoder to force the frame type. Thanks for the answer. Could you explain me how that happens in detail when OMX_IndexParamBrcmVideoAVCInlineHeaderEnable is on? If you ask for an iframe and then submi...
by sorbonne
Fri Jan 22, 2016 8:40 pm
Forum: Camera board
Topic: OMX H264 encoder, periodic IFrames and delay
Replies: 16
Views: 4288

Re: OMX H264 encoder, periodic IFrames and delay

I am using the camera component as source for the frames and the video encoder component for the encoding. The components are deliberately are not tunnelled. The output buffers are 65536 in bytes, enough for any iframe. The stream is sent to the decoder side via RTP in a LAN, no packets are lost and...
by sorbonne
Thu Jan 21, 2016 8:53 am
Forum: Camera board
Topic: OMX H264 encoder, periodic IFrames and delay
Replies: 16
Views: 4288

OMX H264 encoder, periodic IFrames and delay

Hi, I am playing with the OMX encoder in the Raspberry Pi to continuously encode some video frames from the camera at variable bitrate. I set the intra-refresh period to 60frames (2s) with OMX_IndexConfigBrcmVideoIntraPeriod to do some experiments. I noticed two things: 1. at some point the getting ...
by sorbonne
Tue Jan 19, 2016 10:52 am
Forum: Compute Module
Topic: Compute Module 2
Replies: 8
Views: 1661

Re: Compute Module 2

rpdom wrote:It has been suggested that one will be produced, but, as is standard practice for the Foundation, it will not be announced until it is available and ready for sale.
is it reasonable to think that a new camera module will be announced at the same time? :D
by sorbonne
Tue Jan 19, 2016 9:22 am
Forum: Compute Module
Topic: Compute Module 2
Replies: 8
Views: 1661

Compute Module 2

When? :)

Thanks.
by sorbonne
Thu Jan 14, 2016 10:30 am
Forum: Camera board
Topic: Side effects of calling bcm_host_init() twice
Replies: 12
Views: 3131

Side effects of calling bcm_host_init() twice

What are side effects of calling bcm_host_init() twice and bcm_host_uninit() once afterwards. I do not notice any problems, but better ask. If there are any side effects, is there a native way to check if bcm_host_init() has already been called to avoid the second call in the runtime path?

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