![]() ![]() Also, what is "a scrne change"? Video DownloadHelper does not give me any information or options that indicate this particular file is in two parts, although the fact that I have downloaded this file multiple times and the problem starts at the same timestamp every time lends itself to the idea that it may be in two parts at some point in my process. I used the same video downloader ( Video DownloadHelper) to download multiple MP4s from the same site that are larger/longer than my problem MP4 and those other MP4s do not have the same problem. Capturing as one file does not play well during the second half. You streaming device accepts different formats so it play fine. During a scrne change the second part began streaming behind the first. My suspicion, FWIW, is that the download was in 2 pieces with different formats, sampling rates, etc. Proceed?Ĭan you tell me what Avidemux and untrunc are doing according to what you want me to do? And, why do you think that the video is "truncated" when it seems that part of it is sped up? Avidemux can try to reconstruct correct PTS by decoding the entire video. This video contains B-frames, but presentation time stamps (PTS) are either missing or monotonically increasing. But, I ran it and opened my MP4 and it generated this error: Plus, again, I don't know how to use Avidemux, so, I don't know how to use it to get just the first minute. But, I don't know if Avidemux is doing something special other than just taking the first minute. If you mean, create a 1 minute file from the first minute of the MP4, I can do that with my Premiere Elements. So, I don't know what you mean by "cut the first 1min with Avidemux". I have Avidemux but don't know how to use it. In the left field search for the reference file (read above), in the right field for your out.mp4. Unpack the archive and start untrunc-gui. It's a portable program to repair truncated avc videos. Muxing mode, more info : Muxed in Video #1 Original frame rate : 29.970 (30000/1001) FPSįormat/Info : Advanced Audio Codec Low Complexity is there a tool other than ffmpeg that can fix this problem?įormat profile : settings : CABAC / 4 Ref Framesįormat settings, Reference frames : 4 frames.if I decide to use the ffmpeg "setpts" switch to fix this, how can I figure out exactly what value to use?.I know that speeding up the video (a la Benny Hill) is desirable in some situations, but, how /why would a video downloader want to, or be able to, do that?.other than trying to concatenating two files with different fps, is it really possible to have an MP4 that has a fps change within an MP4?.what is the name of the setting(s) that I am looking for to see the change?.what tool can I use to see exactly where this change is happening?.first, is "frames per second" and "frame rate" the same thing and, if not, how are they different?.In addition to fixing this MP4, I want to understand more about how the problem happened and how to figure out what needs to change. I can't figure out what is going on here, what to look for to fix, and, how to fix it. And, the place in orig.mp4 in VLC where it speeds up is at 1:38:38 in Premier Elements and the video does not speed up at that point. It shows the file to be 2:24:31 long but nothing is cut off at the end. When I use Premier Elements to look at orig.mp4, the counter shows that I can only see 30 frames per second. ![]() Except for these two MP4s, when I use my Adobe Premiere Elements 14 to edit the MP4s from that site, I see a value of 30 fps and VLC shows a frame rate for 29.969922 for those MP4s. Those two seem like really weird rates - which is probably an indication that something is wrong. In another MP4 that I have downloaded from that site where the video and audio is out of sync, the frame rate is 33.056366. When I play this orig.mp4 in VLC, it shows that it is using the H264 codec and the frame rate is 94.126760. I have tried multiple apps but I have not found any others that will download from that site. I understand that a possible solution is to find another video downloader and see if the same thing occurs. When I view the streaming video in a browser, the video never speeds up in relationship to the audio. I have downloaded this file multiple times and the exact thing happens at the same time mark each time. This continues to the end, where the video has stopped minutes earlier but the audio continues. ![]() ![]() At about the 1:57:07 mark, using VLC or Zoom Player, the video speeds up but the audio does not. I have a streaming MP4 file (for this post I will call it orig.mp4) that I have downloaded that is 2:51:54 long. To see the solution to this problem along with a recap, see post #37 ![]()
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