nginx - MPEG-DASH picky in fragmented mp4 sampleOffsets and sampleSizes? -

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hey stackoverflow fellows. encountered problem mpeg-dash players not wanting play dash content. basically, have mp4 source in i'm feeding in 2 channels, 1 through rtmp , other in rtsp. connect both channels , create mpeg-dash content out of it. output dash both same, same manifest content, same number of fragments. when playing industry's dash player (i.e. gpac osmo4, digital primates, castlabs dashas), dash content generated rtmp source working perfectly, however, dash content generated rtsp source problematic (i.e. lot of video freezes, a/v out of sync, etc...). when comparing dash fragments generated rtmp against rtsp, difference samplingoffsets , samplingsizes in trun box. have same samplecounts. same fragments used in mss , mss player played both okay regardless of difference in samplingoffsets , samplingsize.

does know if mpeg dash has requirement regards size of each samples in trun , offsets? or cause problem?

i welcome opinions, advice. shoot it...

based on description issues caused due wrong parameters during content generation. please have @ 'mpeg-dash content generation using mp4box , x264', describe helpful tools , steps valid content.

have checked if basemediadecodetime- timestamps (which can found in tfdt box of media segments) valid both audio , video?

best, alex


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