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Questions tagged [transcoding]

Transcoding is the direct digital-to-digital data conversion of one encoding to another (video and audio format)

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Pushing on-fly transcoded video to embeded http results with no seekbar

I'm trying to achieve a simple home-based solution for streaming/transcoding video to low-end machine that is unable to play file properly. I'm trying to do it with ffmpeg (as ffserver will be discontinued) I found out that ffmpeg have build in…
BigRetroMike
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FFmpeg retrieve a specific program from TS file

I tried to retrieve a specific program from a TS file. Said: Input #0, mpegts, from 'DVB_T_good.ts': Duration: 00:00:48.04, start: 55045.888000, bitrate: 14521 kb/s Program 300 Metadata: service_name : ?l?��}�TS� …
chang jc
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How to set abr(average bitrate) on mp3 files using ffmpeg

I need to convert my mp3 from constant or variable bitrate to average bitrate. how can I do this? I've used -b 250k -minratre 50kb -maxrate 260kb But it goes constant bitrate when I run the command.
kmthrong kmthrongi
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Firebase Storage : transcode media files from their source format into versions that will playback on different clients (Android, iOS, Web)

I am storing the different video file formats provided by my website users in Firebase storage. Since I don't want to restrict my end users to a particular file format, but at the same time ensure that the provided media file can be seamlessly…
Bhaarat
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Programmatically transcode MPEG-2 videos

I need to be able to programmatically transcode mpeg-2 files to .mp4, .mp3, .wmv, .rm (optional), and .flv (optional), and hopefully generate a thumbnail as well. I found the Java Media Framework, but it frankly looks pretty crappy. This will be…
dancavallaro
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VLC command line - Transcode

I wanted to transcode a video with simple Windows Forms program. I'm creating process with arguments. My code: string vlc = @"C:\Program Files (x86)\VideoLAN\VLC\vlc.exe"; string dest=@"C:\Users\pc\Desktop\test.mp4"; …
Rafał Belski
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Handbrake generated M4V/MP4 files with Flash Streaming Server over RTMP

We are attempting to transcode some video to a format suitable for our Flash Streaming Server. In the past we have used Adobe Media Encoder (AME) CS4, but we are working with *.VOB files this time, and AME CS4 does not support them. We are…
jocull
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ffmpeg nvenc GPU Memory Usage

I transcoding video on NVIDIA QUADRO K4200 in Ubuntu (ffmpeg version is 2.7.1, NVENC SDK 5.0.1). GPU Memory usage for one stream is 100 MB. Please see an output of nvidia-smi command: But when I run the same transcoding process with the same ffmpeg…
Ivan Kolesnikov
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Is there an equivalent of ASF View for MP4 files?

I'm working on our encoding software, and have come across a strange issue where files in a 16:9 aspect ratio are being played in 4:3 in some players, post-transcode from WMV to MP4. Using ASF view I can see that the source WMV file appears to have…
Greg Beech
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What would be the best future-proof video format that will be supported by most (if not all) platforms?

I have a bunch of video files that I'm planning to use for "offline" playback. The source files are mostly mp4 files, but some have different containers/codecs as well. What would be the best format(s) (container + codec combination) to transcode…
S.Raaj Nishanth
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what is The fastest way to scale down a H264 video in 2:1?

when I use ffmpeg to scale a H264 video. It seems that the video is decoded to the raw graph then scaled then encoded again. But if the speed is very critical,is there a faster way if I specify a “good" ratio like 2:1, as if I want to pick up one…
李天宇
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How to Burn Subtitle (SRT) file and Timecode in FFMpeg

I am trying to burn (hardcode) an SRT file and a timecode value to a MP4 file, but to no avail. I am currently burning the srt and timecode using the below commands: Burn SRT ffmpeg -i input.mp4 -vf subtitles=subs.srt out.mp4 Burn Timecode ffmpeg…
Rahul Prasad
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ffmpeg:transcoding.c problems

I am studying about ffmpeg in c++ to see example of ffmpeg but I dont' know how to solve this problem in transcoding.c here is my problem and here is code static int open_output_file(const char *filename) { AVCodecContext *dec_ctx, *enc_ctx; …
Park Han Wool
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ffmpeg transcoding.c problems about 'dimensions not set'

I am trying to solve this problem in transcoding.c example about FFMPEG. but I don't know how to approach it... I am getting this error: [libx264 @ 00000000022c7120] dimensions not set Cannot open video encoder for stream #0 Error occurred: Invalid…
Park Han Wool
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Are there any open source video transcoding servers?

Are there any servers written that can be setup to take video transcode jobs? I am looking to set one up to work just like the service Zencoder. Something that I could send my transcoding jobs to maybe via web-services. If not are there any c#…
maxfridbe
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