The video-conversion tag covers software & formats related to converting videos from one format or container to the other.

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13 views

How do I convert pvr to mp4?

I have TV box called GTPL for Channel subscription. In that there is a facility to record the show. But it saves the video in "pvr" format that I can't play it in the computer or any other device? So ...
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0answers
12 views

Windows program capable of playing or converting IVF files [closed]

I'm looking for a program that is able to play IVF files, which is a very simple container format for VP8 video. However, I've been unable to find a trustworthy player for it (VLC, which has played ...
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0answers
9 views

Video Codec Problems

I have been having a problem with a file with the PRDY and undf video codecs. Is there any way to open them? thanks Brett 2010 iMac VLC version 2.2.1
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1answer
43 views

ffmpeg changes audio bitrate when transcoding from MKV to FLV

I have one file - sample.mkv ========================================================= File: sample.mkv Width: 854 pixels Height: 480 pixels Aspect ...
0
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1answer
34 views

Basic conversion of sequence of images to avi with avconv

I'm trying to convert sequnce of images to small avi. Each image should be shown 2 seconds. I'm using this basic command sudo avconv -r 0.5 -i test%05d.jpg out.avi I get the output, but it shows ...
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2answers
91 views

What is the CORRECT way to fix keyframes in FFMPEG for DASH?

When conditioning a stream for DASH playback, random access points must be at the exact same source stream time in all streams. The usual way to do this is to force a fixed frame rate and fixed GOP ...
0
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1answer
16 views

How to generate thumbnail image from HandbrakeCLI command during conversion?

I have ffmpeg command line that creates thumbnail image from a video. This works nicely as I can choose the timestamp and the size of the image that I want. -r 1 -t 1 -ss 2 -s cga "%2/%32.jpg" This ...
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11 views

avconv - how to use two input files for transcoding to maximize quality

Let's say I have two video files encoded in lossy formats, for instance sample.mp4 (H.264) and sample.265 (H.265). Now I want to transcode to sample.webm (VP8). We all know transcoding degrades video ...
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2answers
62 views

Convert all files in directory using FFMPEG

I'm trying to write a script to convert all the files in a directory to m4v, whilst trying to keep similar (if not the same) quality and compress the file to reduce the overall size. I've pieced ...
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0answers
41 views

FFMPEG: Windows binaries with globbing (libavformat) support?

I am struggling to get ffmpeg to combine a bunch of images in to a video which have a format with a full 17 digit timestamp. 17 digits is well beyond what -i %d will support. So I want to use ...
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0answers
36 views

Copy creation_date metadata when converting video with ffmpeg

I want to convert a bunch of old videos to H.264 to save space, but ffmpeg always drops the creation date, no matter what fancy -map_metadata variations I use. This is obviously a huge dealbreaker for ...
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22 views

When using Super Converter, I can't change my recording (.flv) to anything

When I try to convert my screen recordings to anything from .flv in Super Converter it gives me an error saying that it doesn’t have any video and that .mov or .wmv needs video. But when I use VLC to ...
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0answers
37 views

ffmpeg scaling input video converting it from mov to mp4 and watermarking in the center

I'd like to scale videos comming from my DSLR with ffmpeg to a resolution of 960x540, then convert the container from mov to mp4 and after all of these things I'd like to watermark that video by ...
0
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2answers
37 views

Is there a way to generate left and right camera views from one camera video

I have only one video available from one camera. Is it possible to create left and right camera views from one camera video and could be viewed from oculus rift-VR. No need for audio
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0answers
43 views

How can I extract a single GOP as images from a video?

I need to extract a complete GOP (group of pictures) from an MPEG-4 video and turn every frame in that GOP into a full BMP image. For example, I imagine something like this: ffmpeg -i Input.mp4 ...
0
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2answers
86 views

ffmpeg: how to convert mp4 to mp4?

The subject is correct ;-) My problem is this: I have a set of MP4 files; all of them play with vlc on my Ubuntu box. But when copy them to USB; and want to play them from my TV ... some work; others ...
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1answer
53 views

Cutting out two parts from the middle of a video with ffmpeg

I have two files, rec.avi and audio_edited.wav, and what I'm trying to do is take the parts 00:30:50–01:42:56 and 02:16:55–04:03:10 of each file, concatenate those and encode them into an WebM file. ...
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1answer
34 views

Folder full of .jpg files. Batch convert each to a video with duration of X seconds

I am looking for a way to mass convert a folder of image files to a video (one per image), where each of the images is taken and placed on the video for the full duration of the video, e.g. 30 ...
0
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1answer
83 views

Ffmpeg upscale and letterbox a video

I have a video with that is 480x360 in resolution, what I want to do is upscale this video to 1280:720 and not loos the original videos aspect ration ( letterbox the left and right side) So I know ...
1
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1answer
40 views

How can I configure ffmpeg to encode h.264 video with a specific log2_max_frame_num_minus4 value?

I am working on a project where we are splicing HLS video segments. The HLS standard conveniently includes an #EXT-X-DISCONTINUITY directive to signal that the player should be ready for video that ...
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0answers
50 views

FFMPEG Lossless Video Output Options

I am looking for lossless video output options from FFMPEG that can be viewed without any special codecs or special players such as VLC. I want a basic use to be able to open up the video with a ...
0
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1answer
53 views

Create DVD from MP4 using FFMPEG?

I want to convert an MP4 video into a DVD using a Linux-based process such as FFMPEG. Currently we're using Nero to burn MP4 to DVD video, but I want to automate the process as much as possible. When ...
0
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1answer
45 views

How to sync splitted mkv + external srt with ffmpeg?

I want to convert MKV audio from DTS to MP3 and split the file at the same time. The problem is: I need an external .srt but when I split it, the second file is desynced from video. Example: ffmpeg ...
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1answer
8 views

How do I cut clips using its position from a video?

I have a lot of clip positions that I have to extract from a single video, how can I automate the whole process? As of now I have to manually cut each clip using its position, but as my number of ...
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3answers
2k views

M3U8 file to MP4 conversion?

Can an M3U8 video file be converted to MP4? I have had no luck finding a file converter that can do this since the M3U8 file is really an Audio playlist with many smaller files in a folder.
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1answer
111 views

Video takes long time to start

I use this command to convert video using ffmpeg on phpvibe: unfortunately the videos take a long time to start on firefox so I'm looking for a command to move the video's atom to the beginning so ...
1
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1answer
120 views

batch file for hardcoding subtitles in multiple videos with ffmpeg

My question at the top: What is the correct way to refer to a dynamic file name for the ass filter when using -filter_complex in ffmpeg? The story and my attempt: I have a folder that contains ...
0
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1answer
55 views

Connecting PAL camera to pc and working with the feed

I have an ancient analog camera which has the classic PAL analog output. I want to get this feed, display it on the computer's monitor and save the stream on the pc hard drive. I know that if it was ...
0
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1answer
58 views

HandbrakeCLI convert audio only

My TV reads video files only with AAC or MP3 audio tracks. I am trying to use HandBrakeCLI.exe to convert audio tracks only preserving video quality, but it takes as mush time as converting the whole ...
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3answers
407 views

Conversion from WebM to MP4 in Ubuntu is slow and bad quality

I have used the command ffmpeg -i input.webm -q:v 10 -c:a copy out.mp4 I also tried using avconv instead of ffmpeg. The conversion is successful but the quality is bad. Also it takes a lot of ...
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1answer
96 views

Proper DVD rip for serving via UPnP

I am a happy user of minidlna (version 1.0.24) on an old Mac Mini G4. It does work quite well in my environment. Since minidlna does not allow transcoding, I would like to rip a set of DVDs (mostly ...
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1answer
251 views

incompatible pixel format 'yuv420p10le' for codec libx265

I am using ffmpeg -probesize 2G -i input.ts -c:v libx265 -pix_fmt yuv420p10le -x265-params fps=50 -c:a libfdk_aac -t 00:00:05 /output.ts I receive the error incompatible pixel format ...
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1answer
78 views

batch video size reduction in nested folders maintaining their source folders as destination

I have a folder containing nested folders which hold many video files with different formats. I want to reduce their size with HandBrake and maintain properties of the original videos (such as frame ...
2
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1answer
145 views

Remux/encode/convert MPG into MP4

I understand that it is impossible to edit metadata of MPG files (i.e. createdate), so I am looking for another way to "upgrade" my MPGs into a newer file format (preferred are formats that work both ...
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0answers
85 views

How can I make a video “seekable” using ffmpeg when played in VLC player?

I have a .mkv video with the following properties: Input #0, matroska,webm, from 'DEMO.mkv': Metadata: ENCODER : Lavf56.4.101 Duration: 00:00:56.37, start: 2.333000, bitrate: 2032 ...
1
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1answer
61 views

video size reduction by grayscaling it

When we convert a video into grayscale, all of its 3 colors (RGB) in a pixel are assigned the same number (instead of 3 different numbers). So theoretically we must have reduction in size almost by ...
2
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0answers
97 views

FFmpeg cuts off ~50ms when I extract+convert audio from video

I want to extract the audio stream from many .MOV files with ffmpeg. The goal is to have output files with small file size and perfectly equal sound to the input file. Currently I'm using this ...
1
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1answer
253 views

Swapping index of an MP4 file with FFMpeg

I run a web application which provides a few videos on it. Those videos are being displayed with a flash-video-player. Unfortunately, the index of those container-files is at the end of the file, so ...
2
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0answers
159 views

F4V to MP4 via FFMPEG (Bitrate viewer)

I have a several F4V that I've captured using Flash media Live Encoder and I need to convert them to MP4s. As I understand F4V are fairly identical to the MP4 format so we used "copy" for the video ...
0
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1answer
143 views

downsample mp4 in windows

I have an hd camera that records huge mp4 files in full hd. I want to publish the videos to the web, but the files are too big. How do I downsample the mp4 files so that they are 600 pixels wide and ...
0
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1answer
111 views

convert avi file to mp4 in linux

I have a bunch of avi files. I would like to convert them to mp4 format while retaining their small file size. I am using linux. Can someone please show step by step how to make the conversion, ...
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0answers
133 views

Resume transcoding a video with ffmpeg

I have a node server that uses child-process to use ffmpeg to convert a video to mp4. However if the server crashes while transcoding, then I'd like to resume transcoding the file (similar to -C with ...
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0answers
121 views

How to set profile compatibility of an fMP4 using ffmpeg?

I'm using ffmpeg to generate a fragmented mp4 stream that will be consumed by an HTML5 player. I think I have a correctly formatted mp4 stream of data with an empty moov at the start and a series of ...
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0answers
27 views

audio error when concatenating clips using ffmpeg [duplicate]

I'm trying to do the following: cut an input video into segments and convert these segments in the same step concatenate the transcoded segments back together in an output file The steps that I'm ...
0
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1answer
226 views

avconv gives empty output

I tried converting a video file to a desired format using FFmpeg through WinFF. I have specific demands about some aspects of the output file, while other aspects should be set in a way which will ...
2
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1answer
194 views

ffmpeg - h264 - multiple resolutions without scaling

I have an MP4 which contains an H264/AVC stream, which contains multiple resolutions. Below is the output of mediainfo on this file: General Complete name : known.mp4 ...
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2answers
2k views

How to make an MPEG2 video file with the highest quality possible using FFMPEG?

I have got a WMV (v9 (WMV3), 960x720, 30.000030 fps, planar 4:2:0 YUV, produced by PowerPoint 2010) file and need to convert it to MPEG2 - the only format my TVset can read from an USB flash drive (I ...
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1answer
307 views

Merging 2 videos with overlay causes async problems

I'm using following ffmpeg command to merge 2 MKV inputs with the overlay parameter. The result should be one output with input1 on top of input2. In the process, the output should be webm. Both ...
1
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1answer
306 views

Recursively convert mkv to mp4 with avconv

I need to create a script that can convert all .mkv files to .mp4 in a starting directory and all sub-directories under it. I've been able to convert files one at a time by using: avconv -i ...
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0answers
446 views

Why does avconv change the fps when deinterlacing?

I have a .MTS 1080i of 25fps (mediainfo) that I deinterlaced with avconv -i input.MTS -vf yadif -c:a copy output.mp4. As the wiki says, the default value for yadif is 0 which "outputs one frame for ...