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Questions tagged [transcode]

105 questions
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How to transcode HDR to SDR in Windows MediaTranscoder API?

How to transcode HDR to SDR in Windows MediaTranscoder API? Windows provides MediaTranscoder API to transcode video. I am trying to transcode HDR (High Dynamic Range) video into SDR (Standard Dynamic Range) video. I see there is an API for setting…
Sazzad Hissain Khan
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Transcoding to webm with ffmpeg audio problems

For the past few days, I have been trying to get my lossless .mov video(that has an audio track) to a .webm format. Some info on the video & audio is that the fps is 30. Also the audio track has about 3-5 seconds of silence/blank audio before you…
Max A.
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Timestamp on Live video after transcoding from RTSP stream to FLV

I have access to an RTSP stream from an IP camera, and the RTSP packets have video timestamps in the header. If I transcode the video stream to FLV using VLC for the purposes of playing the video on the web, is it safe to assume that I will lose the…
ctorx
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ffmpeg overwrite v4l2-ctl configuration -> how to do real raw device to network copy?

I need to do a real device to a tcp socket copy like : cat /dev/video0 | /bin/nc 127.0.0.1 8000 -w 1 This very basic command line work for my case. I want to do the same, but with the ffmpeg process. The aim is to standardize the streaming process,…
Serveurperso
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Remove audio streams from a .m2ts video file

I have a video which has 3 audio streams in the file. The first one is English and the other ones are in different languages. How can I get rid of these audio streams without losing the quality of the video and the English stream. I think ffmpeg…
Nedrozak
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Can I detect the job status changing to "COMPLETED" with a callback function

I want to use Piper to transcode vidéos I will call piper transcode in my code php like: $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, "http://my_server_piper:8080/jobs"); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch,…
Aminesrine
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transcode with ffmpeg may eat up a lot of memory

When I transcode this source file with ffmpeg,ffmpeg may eat up a lot of memory about dozens of GB till to be killed,Why? the report here: ffmpeg started on 2017-12-19 at 10:59:15 Report written to "ffmpeg-20171219-105915.log" Command line: …
JasonZhang
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What to transcode my media library?

I've got a bunch of movies in a folder that's on a laptop running a Plex server. Some movies play fine, and others don't buffer at all. Is there an FFMPEG conversion command that will convert them all to a format that Plex will just play natively?
testname123
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ffmpeg RTSP MPEG4 to h.264 RTSP not streaming

I'm trying to re stream a RTSP feed and convert to h264. I'm using the following command line: C:\Users\Martyn>ffmpeg -re -i rtsp://192.168.2.207/VideoInput/1/mpeg4/ -preset ultrafast -vcodec libx264 -tune zerolatency -b:v 900k -f rtsp…
martyn
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ffmpeg H264 bytestream to image or video file [Java]

I have a Java function which receives bytes of an H264 stream as follows: void bytesReceived(byte[] bytes, int size) Using ffmpeg, how can I transcode these bytes to some sort of image format? I would be happy with mp4, jpeg, etc. I've seen lots…
Mitchell
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How to HLS in Wowza with pre-recorded videos?

I have a wowza streaming engine in my server which is serving live and vod. I want some of my prerecorded videos to serve in HLS vod which are in MOV format. I am successfully able to place this file to install-dir/content/ and get the stream. But,…
Tolsee
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Real time transcoding of multiple RTMP-Streams

I am very frustrated after talking to many companies doing live-streaming or selling streaming-products and I hope someone could get me to the right direction. Here is my problem: We are broadcasting sportevents live to the internet via flash media…
funkdoobiest
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convert MOV to mp4 using transcode

I want to convert a MOV from my Casio cam to mp4 using transcode. Why transcode? Because I also want to deshake the video in the same step. When I use ffmpeg -i in.MOV out.mp4 it works. When using transcode -J stabilize -i in.MOV or transcode -J…
koem
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Ruby: how to transcode a utf-8 string?

My Thai string is: "หลับตาฝัน ถึงชื่อเธอ" and I need to output the utf-8 encoding like this: "\u0e08\u0e2d\u0e21\u0e40\u0e27\u0e17\u0e22\u0e4c\u0e21\u0e2b\u0e32" At the moment, I installed the 'iconv' gem and am using string = Iconv.conv('unicode',…
matski
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Transcode h264 video by MediaCodec directly withou texture render

I'm doing a transcoder using MediaCodec. I created two mediacodec instance, one is for decoding and another is for encoding. I'm trying to send decoders outputBuffer directly into encoders inputBuffer. It seems has no problem while compiling and…
bingbing
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