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Questions tagged [nalu]

6 questions
4
votes
1 answer

Invalid NAL unit size for MP4 created from NALU with 3-byte start code (0x000001)

I have a mp4 muxer that works fine when the H264 NALU has the 4-byte start code (0x00000001). I am adapting it to support 3-byte start code (0x000001) but I am stuck with a bug that I am not able to identify. The MP4 generated open in VLC and…
rsc
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1
vote
1 answer

FullCalendar in GWT : How to refresh calendar while keeping events

I'm working on a GWT application using Domino/UI, Nalukit and the Javascript plugin FullCalendar v6. I made a custom popup to modify and delete an event but when I validate the form, my calendar refreshes and all the event in my week view…
Loïc LEPRIEUR
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1
vote
1 answer

how to differentiate between valid and invalid NALU in AVCC?

I have a mp4 file that has only video data without moov atom. I have parsed the SPS, PPS. I'm trying to decode the video frames and NALU in this data. When I process each byte of this data to find NALU, I'm getting a false NALU because in RBSP data…
Mohammad Azam
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0
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0 answers

Is it necessary to transmit predicted block of intra-prediction of H.264 or H.265 to decoder side?

I am wondering is it necessary to transmit predicted block of intra-prediction of H.264 or H.265 to decoder side. During intra-prediction, the encoder estimates all possible mode for given block size, retrieves predicted block according to picked…
Bruce Hsu
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0
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0 answers

Transmux two videos to side by side without reencoding

I am wondering if it would be possible to merge two videos (side by side) without transcoding. The streams are identical except the pictures are different. Think IP cameras on a LAN. I am on a platform where I dont have compute power for real…
TAXfromDK
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0
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0 answers

How many h264 packets could make up a complete frame(yuv/rgb)

I'm working a document, after read rfc6184 and Annex B confused with i p b frame with how many i frames or b p frames needed to decode a complete yuv or rgb frame(a picture can be im_write with opencv or something like n-dim array in numpy…
ald2000
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