Gyan, thanks for getting back to me and taking the time to explain. I am not sure how they are produced, except that someone takes a video, it may be stored on a DVR before it is downloaded to a PC, but it could be downloaded from the camera straight to the PC as well. This is for a commercial product so all kinds of video cameras are used, whatever the client wants to use. I don't know if the problem happens only when they are stored on a DVR before they are downloaded to the PC or not.
I am a software person! So I know very little about the hardware involved in this. I just write the code for the software that uses the videos. :-) I'll try to find out though and let you know when I do. For now, I hope I can replace ffmpeg with mp4box. I thought the version on On Mon, Jul 24, 2017 at 1:57 PM, Gyan <[email protected]> wrote: > On Tue, Jul 25, 2017 at 1:10 AM, Ute Willmore <[email protected]> > wrote: > > > > > What is non-standard about my input video? > > > > That I don't know. Only that ffmpeg doesn't decode most of the frames from > the original file. > > > > I ran many conversion commands, and listed several of them in my original > > message. Which one did you use? > > > > 'ffmpeg -v verbose -i hd.avi -vf scale=640:480 scaledoutput.mp4' > > What does "Muxing to TS" mean and why/how did you do that? What does > > "Invalid NAL warnings mean? > > > > H.264 data is stored in chunks called NAL units. I transferred the contents > to another container format just to test the result, so you can ignore this > part. > > > > > Is this the one you are using? > > https://www.videohelp.com/software/MP4Box > > > > Yes, but this is the download page at the official site: > https://gpac.wp.imt.fr/downloads/gpac-nightly-builds/ > > mp4box is one of the tools bundled. > > > > Do you have any idea what needs to be done to > > produce a standard avi video in the first place? > > > > How are these AVIs produced? > _______________________________________________ > ffmpeg-user mailing list > [email protected] > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > [email protected] with subject "unsubscribe". _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
