Fix ffmpeg nonmonotonous dts in output stream 0 1 error. This may result in incorrect timestamps in the output file. To set the video bitrate of the output file to 64 kbits. The output file is ok, but this warnings look a bit strange. Do you not set the pts value on your avframe before encoding. I also tried to use ffmpeg instead of x264, but in this case the output file is broken, video track contains only a still image with red text unable to load ffms2x64. Openal is part of core audio, the official mac os x audio interface. Recently i installed a new svn version of ffmpeg r26402 and i. After giving the pts of avframe a value, then encoded it. I always wanted to use the ffmpeg command line tool the one ffmpegx is the gui of in terminal, but i didnt find it in fink, and i didnt want to compile it from an experimental source.
It involves using the trim and concat filters to cut away parts of a file videoaudio. Another example is the setpts filter, which only sets timestamps and. Description ffmpeg is a very fast video and audio converter that can also grab from a live audiovideo source. Failing to use this option when necessary can result in exaggerated durations or muxing failures due to nonmonotonic. Ffmpeg doesnt like monaural audio streams for x11grab screen capture. Im working on some new features for ffqueue, but ive come to a problem i cannot solve. It can also convert between arbitrary sample rates and resize video on the fly with a high quality polyphase filter. At its core is the ffmpeg program itself, designed for commandlinebased processing of video and audio files, and widely used for format transcoding, basic editing trimming and concatenation, video. Failing to use this option when necessary can result in exaggerated durations or muxing failures due to non monotonic timestamps. When encoding using main or high profile with bframes, and output via mepgts muxer and udp, i get somewhat frequently around each 1030 seconds warnings about nonmonotonous dts in output stream from the mpegts muxer. The libavformat library provides some generic global options, which can be set on all the muxers and demuxers. The first video frame starts at 0, while the first audio pts is negative. However, i have not found an exact gui for ffmpeg on mac. I have never understood why this happens, but oh well.
Recently i installed a new svn version of ffmpeg r26402 and i come through problems i didnt have before with the same sample code. An easy install of the ffmpeg command line tool mac os x. Install ffmpeg on a mac installation instructions for getting ffmpeg on your mac, which donnt assume you know how to use terminal or how to execute commands. Welcome to doom9s forum, the inplace to be for everyone interested in dvd conversion. By posting to this forum you agree to abide by the rules. Ffmpeg is a free and opensource project consisting of a vast software suite of libraries and programs for handling video, audio, and other multimedia files and streams. Hi, i have an issue with ffmpeglibav library i guess. You have to set the right pts value and dts if you want to encode audio too for you avframe newpicture. The process goes through kind of fine around the first two minutes but then this message appears and it goes in and endless cascade of yellow messages telling me non monotonous dts in output stream. The problem is that the dts can jump when the source stream is switched within the server that is providing the source for ffmpeg. So if 26 weeks out of the last 52 had nonzero commits and the rest had zero commits, the score would be 50%. There are three output files specified, and for the first two, no map options are set, so ffmpeg will select streams for these two files automatically out1.
This article will show you 3 ways to convert any videos on mac os x. This document describes the supported formats muxers and demuxers provided by the libavformat library. For testing i use a transport stream from my hdrecorder and it contains a mix of movie and commercials commercials are in stereo, movie is in 6ch surround. It seems the first segment gets repeated, which explains this message 125 25fps 5secs per segment ffmpeg loglevel verbose. This is a codec dependent value in case of h264 its some thing like that. Every step is outlined below with screenshots and some explanations of what the commands are, for the curious. Ffmpegusers output pts is different from the source. Its a pretty useful tool, because the ffmpeg synatx isnt quite. Hi, im transcoding one mpeg2ts file to mp4, but i noticed the start ptss of video and audio of the generated mp4 file are different from the source.
Well, there is a working binary of ffmpeg bundled with ffmpegx. Ffmpeg is distributed in the hope that it will be useful. Trying to find source code location of ffmpeg conversion. This score is calculated by counting number of weeks with nonzero commits in the last 1 year period. Installing and using ffmpeg on mac os x stephen jungels. Mts format with an added tag of q 0, updated the extensions in the text file and set my output file to a. This score is calculated by counting number of weeks with nonzero issues or pr activity in the last 1 year period. Remuxing matroska to mpeg transport stream with copyts errors out with non monotonically increasing dts. Set ac 2 to fix nonmonotonous dts in output stream 0 1 error.
I still get nonstrictlymonotonic pts warning messages. Invalid argument when using an older version of ffmpeg specifically svnr25783 from 2010 the h264 video is copy okay even though there are a lot of errors such as. Hi, i was using a 2009 version of ffmpeg source code for encoding some movies in x264. Video frames lost at end of grabbing and recording session issue. Post by andrew berg with the latest build of x264, i keep getting this. Dont nothing about reordering but you can get rid of the nonstrictlymonotonic pts warnings.
Im running into problems when using ffmpeg to pull a live rtmp stream, reencode it, and push the result back out to another location. I had fps issues when transcoding from avi to mp4x264. In addition each muxer or demuxer may support socalled private options, which are specific for that component. Id reask your question to the libavuser andor ffmpeguser mailing list, they. The ffmpeg project is a fast, accurate multimedia transcoder which can be applied in a variety of scenarios on os x if you just want to add a good video transcoder to a toolset that already includes final cut pro, adobe photoshop, and similar tools, ffmpegx may be your best choice because of its familiar macstyle user interface. Fix nonmonotonous dts for flv live stream output ffmpeg. With the latest build of x264, i keep getting this.
It seems that though only sometimes and not on all bframes, because there are plenty of bframes in the stream, that. Welcome to doom9s forum, the inplace to be for everyone interested in dvd conversion before you start posting please read the forum rules. Application provided invalid, non monotonically increasing. Before you start posting please read the forum rules.
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