Nettet[000061100004a640] mp4 demux debug: found 2 tracks [000061100004a640] mp4 demux warning: elst box found [000061100004a640] mp4 demux debug: - [0] duration=28933ms media time=33ms) rate=1.0 [000061100004a640] mp4 demux debug: track[Id 0x1] read 62 chunk [000061100004a640] mp4 demux warning: STTS table of 1 entries … Nettet24. jun. 2024 · This is used for the sample timestamp field in edit list entries and the duration field in the stts, stss, ctts boxes. ffmpeg (& other apps) will generate timestamps based on this timescale. In the AVC Configuration box (avcC) more precisely in the VUI section of the sequence parameter set NAL unit: 60. That's the encoder time-base.
视频解码研究之PTS(2)Mp4格式,AVI格式和MKV格式 - CSDN博客
NettetLuc Cervellin’s Post Nettet31. aug. 2013 · 可以看出这个sample只有一个description,对应得的数据格式是'mp4a',14496-12定义了这种结构,mp4解码器会识别此description。 ii stts Time-to-sample atoms Time-to-sampleatoms存储了media sample的duration 信息,提供了时间对具体data sample的映射方法,通过这个atom,你可以找到任何时间的sample,类型 … honda motorcycle montgomery al
c实现mp4解封装 - 代码天地
Nettet24. mai 2024 · Is there a standardized way to mark up specific parts of a MP4-contained video as skippable, e.g. trailers, recaps, intros/outros, opening/closing credits, in the metadata in the file itself? If possible, I would like to set this with FFmpeg or MP4box. I … Nettetmp4. MPEG-4 Part 14. MP4 is an extension defined by MPEG-4 video standard and AAC audio standard. It is a container that supports all kinds of media such as video, audio, subtitles, 2D and 3D graphics. It is possible to open MP4 file with almost any player on … Decoding times of each sample in a track of mp4-file are squeezed in the box 'stts', this box is mandatory, while presentation times are squeezed in another box 'ctts'. For audio this 'stts' box is sufficient since decoding and presentation times coincide (assumed that decoding is performed instantaneously). honda motorcycle models in spain