Media tool with support for multiple codecs, filters, and containers. Include the full, uncut console output if you have problems with an FFmpeg command.

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16 views

How to pipe regex with ffmpeg and perl?

So I am trying to get the current frame of the conversion with this bash command: ffmpeg -i fd.mp4 fd.avi < /dev/null 2>&1 | perl -015 -e 'print <STDIN>=~/frame=(\ {3})(\d+)/' | sed ...
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0answers
63 views

Extracting one frame per minute with ffmpeg, and skip a few seconds

I'd like to extract one frame per minute from a video, starting from a specified offset. For example, say the offset is 00:01 (mm:ss), then I'd like to extract 00:01, 01:01, 02:01, and so on. The ...
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1answer
45 views

Extracting frames with ffmpeg and including subtitles

I am attempting to extract a single frame from a video, with subtitles, using ffmpeg. I built ffmpeg myself: sircmpwn@picard ~/sources/bakabt-staging/hennkeo/groups $ ffmpeg ffmpeg version ...
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1answer
36 views

Modify ffmpeg batch file to replace extension instead of appending new one

I'm trying to convert a bunch of .flv's in a folder to .mp3's with FFMPEG in Windows XP. This batch file works fine for me. for %%A IN (*.flv) DO ffmpeg -i "%%A" -ar 44100 -ab 128000 -ac 2 ...
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37 views

Command line based softwares [closed]

What are some of the most extinsively used Shell/Command-Line based software, that are still used a lot today. Few examples would be FFMPEG and VIM. Can anyone list out a few others?
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0answers
26 views

Wrong audio duration with ffmpeg

I tried to convert a m4a file to mp3 with ffmpeg, with the following simplest command: ffmpeg -i in.m4a out.mp3 After conversion, the duration seems weird. The original m4a was 4:06. But for the ...
1
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1answer
19 views

How can I use FFmpeg to record a live stream to multiple files simulataneously?

I have FFMPEG reading a live stream and writing to an MP4 file. I would like to modify the FFMPEG command to write to 3 MP4 files simultaneously. This means that instead of generating one file, FFMPEG ...
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0answers
17 views

How do I get ffmpeg to generate useful (and not empty) thumbnails from AVI files?

I'm using Cumulus Clips to upload some videos from work to other work people. When I use the following thumbnail command with a WMV file, all is good. /usr/bin/ffmpeg -i ...
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22 views

Using jpegtran with ffmpeg via piping?

I use ffmpeg to generate a ton of jpeg images. However, these jpegs aren't optimized by ffmpeg. On average, the images losslessly compress another 10-20% when I run them through jpegtran. I don't ...
0
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1answer
21 views

Concat two mp4 files with ffmpeg without losing quality

i have now a problem with concatenating of 2 videos using ffmpeg. So, i am encoding the source mp4 files to ts with ffmpeg -i output1.mp4 -scodec copy -vbsf h264_mp4toannexb i0.ts but the file ...
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1answer
23 views

How do I determine if ffmpeg can handle file?

I have an application that splits video with ffmpeg. In order to avoid errors, I would like to know if file selected by user is video or not. Is there any ffmpeg command that would inform me whether ...
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0answers
19 views

How to use ffmpeg to concat mpeg4-aac mp4s?

I know that you can concat h264-aac mp4s using the following command: ffmpeg -i INPUT.mp4 -codec copy -bsf:v h264_mp4toannexb OUTPUT.ts (as per ...
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0answers
11 views

converting MPTS to SPTS

I have a live multi-program MPEG-TS stream [MPTS] over IP, I'd like to select just one program from the stream, and output a single-program MPEG-TS stream containing just that program. is there any ...
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0answers
18 views

Converting image format to jpeg using ffmpeg

Before I ask I want to say that I know about ImageMagick and the other image processing tools but I explicitly need to use ffmpeg. So, can someone tell me if there's a way to use ffmpeg to convert an ...
2
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1answer
26 views

Splitting video in multiple episodes with ffmpeg

I need to cut one video into multiple pieces with ffmpeg. When I cut just one episode ffmpeg -i 001.mp4 -vcodec copy -acodec copy -ss 00:00:00.000 -t 00:00:25.500 -strict -2 out1.mp4 or ffmpeg -i ...
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16 views

Preserve text readability while encoding game screencasts

I have a bunch of (almost lossless) 3d game screencasts which now occupy considerable amount of my hdd space. I would like to reduce their size. Overall image quality isn't of great concern, except ...
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2answers
69 views

FFmpeg: image intro

I would like to add an image intro to a video for about 5 seconds but the time could be variable. I made a 5 seconds during intro.mkv with the following command: ffmpeg -loop 1 -f image2 -i png.png ...
0
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1answer
18 views

FFMPEG converting media type aswell as relocating MOOV atom

I have found this line online ffmpeg -i input.mp4 -c:a copy -c:v copy -movflags faststart output.mp4 Which takes an input, and copies the audio, video and sets the MOOV atom to the beginning in an ...
2
votes
1answer
78 views

FFmpeg watermark

ffmpeg –i test.mkv -vf "movie=watermark.png [watermark]; [in][watermark] overlay=10:10 [out]" outputvideo.mkv I'm trying to simply add a watermark to a video to start testing with ffmpeg. But it ...
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0answers
57 views

How to output to both mp4 and mpegts

Using h264 and aac, I've been trying to generate an mp4 and mpegts output in one command using the new tee muxer. Either it complains about a lack of the aac_adtstoasc bsf, or if global_header is set ...
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48 views
+50

FFMPEG - Non-monotonous DTS

When I use FFMPEG to convert a video from MP4 to M3U8, using the following command, ffmpeg -i op.mp4 -b:v 128k -flags -global_header -map 0:0 -map 0:1 -f segment -segment_time 4 -segment_list_size 0 ...
0
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1answer
52 views

Encoding video using Vp8 encoding scheme

Hi I want to encode raw(yuv) video to m4v using ffmpeg command in Vp8 encoding scheme, i try to use this command: ./ffmpeg -s 1280x720 -i raw.yuv -vcodec libvpx 1.m4v but the error was : Input ...
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2answers
48 views

How to batch insert same clip scene at the beginning of multiple videos?

Well, it has been a few days researching on a suitable auto or semi-automatic way of mass merging files this way. Basically, what I want to achieve is inserting the same clip, before a bunch of other ...
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1answer
49 views

Specify MPEG-4 as encoding parameter in FFmpeg

I want to ask about mpeg4 codec parameters. I use it to encode video in Evalvid environment as follows: ./ffmpeg -s cif -r 30 -b 64000 -bt 3200 -g 30 -i raw.yuv -vcodec mpeg4 vid.m4v The video will ...
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1answer
40 views

How can I use FFmpeg to add a ticker/varying text to live video?

I am able to add text to a video on my hard disk, before I braodcast it...by using the command. ffmpeg -y -i IMG_0696.MOV -acodec libmp3lame -vcodec msmpeg4 \ -b:a 192k -b:v 1000k -ar 44100 \ -vf ...
3
votes
2answers
63 views

FFMPEG extract intra-frames I,P,B frames

Is there a way to extract the intra-frames and preserve them as-is from FFMPEG or similar program? I know you can extract frames to a sequence of JPEG images using -f image2. But those are full images ...
0
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0answers
21 views

How can I limit ffmpeg log output to specific values?

How can I limit log output to specific values? I want the output of: ffmpeg.exe -i input.mp4 -f mp3 -acodec mp3 -vn output.mp3 To contain only: size= 161kB time=00:00:10.29 bitrate= 128.3kbits/s ...
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0answers
87 views

Encoding and decoding in ffmpeg

I need to convert a rtp stream to a mp4 file. After reading the ffmpeg tool documentation and the encoder guideline Itried this: ffmpeg -re -i sample.mp4 -c:v libx264 -c:a libfdk_aac -f rtp ...
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1answer
36 views

How to using ffmpeg to insert logo to the live video stream

I have one question: How to using ffmpeg to insert logo to one udp streaming of live video?
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0answers
34 views

Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument [duplicate]

I am trying to run this command copy pasting it from somewhere ffmpeg -re -i "sample.mp4" -vcodec libx264 -vb 150000 -g 60 -vprofile baseline -level 2.1 -acodec aac -ab 64000 -ar 48000 -ac 2 -vbsf ...
0
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1answer
44 views

Getting error: Unknown encoder 'libvo_aacenc'

I am new to ffmpeg, just trying to build an SDP file for streaming. I'm facing an error when I run the command ffmpeg -re -i "sample.mp4" -f rtp rtp://127.0.0.1:10000 -flags +global_header -c:a ...
1
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1answer
34 views

Optimum parameters for audio slicing using FFMpeg

I am planning to use Perl to extract audio from media files through FFMpeg. Now as far as I know, FFMpeg needs lot of parameters like bit-rate, etc which it used to extract the audio. So for one ...
1
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1answer
36 views

ffmpeg thumbnails with exact size main aspect ratio

Hi need to get one thumbnail with resolution 560x420. I'm using this command: ffmpeg -i "file.mp4" -vf "scale=560:-1,pad=max(iw\,ih):420:(ow-iw)/2:(oh-ih)/2" \ -frames:v 1 best.png This command ...
2
votes
1answer
27 views

ffmpeg: isolate one audio channel

How can I use ffmpeg to isolate one channel from an audio file? I have a stereo audio file, and I need the output to be the contents of the right channel in a mono audio file. While I'm sure it's ...
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2answers
52 views

ffmpeg with 720p video and y4m file

I was simulating a lot of videos in cif format, also all videos came with yuv format file. I used the expression below and it works well: ffmpeg -s cif -r 30 -i video.yuv -vcodec mpeg4 -g 12 -bf 2 ...
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1answer
27 views

Producing stable video from slow images with FFmpeg

I'm struggling to achieve stable ffmpeg outputs that work across players and platforms for a video produced from a series of images that need to roll at about 1 fps. ffmpeg -f image2 -r 1 -i %02d.png ...
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0answers
23 views

Video output options of the CLI players?

Just thought I'd jot this down while I have the problem: On a computer that apparently has a problem with having X11 use graphics acceleration, I experience (understandably) problems playing video ...
0
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1answer
19 views

can ffmpeg streaming jumpt to certain position?

I am working with ffmpeg. I can get a thumbnail from rtsp via command like below. ffmpeg -itsoffset -4 -f rtsp -rtsp_transport tcp -i rtsp://fostv.com:554/test/smarttv_sample.ts.pac -vframes 1 -s ...
2
votes
1answer
66 views

Pipe VLC output to ffplay?

I have a (broken) PC, where VLC plays videos on only the left half the screen, which seems related to OpenGL/drivers (see here). On the other hand, ffplay doesn't have the half-window problem, but can ...
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0answers
25 views

How to encode a video with timestamps in order to have audio/video sync

DISCLAIMER: I am unfortunately very new to codecs and using FFMPEG, so I apologize for any incorrect terminology or if this is in actuality a very easily resolved question. I have a sequence of jpeg ...
1
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1answer
53 views

Problems with frame rate on video conversion using ffmpeg with libx264

I have problems with transcoding some videos. I ran the most simple ffmpeg command and it takes very long time and the output file is about 10 times bigger. If I provide the frame rate parameter -r it ...
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0answers
59 views

Convert stream file (mux) to mp4 gstreamer

I used a program to capture my screen (called Kazam for linux). My computer crashed and I lost my screen capture which I cannot recreate. I found two files that seem to hold my video, a .mux and ...
0
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1answer
35 views

ffmpeg video with watermark and subtitle at same time

Hi I want to add watermark png image to video with hardcode substitle .srt file at same time what changes i should do the to following line ffmpeg -i input.mkv -threads 0 -c:v libx264 -crf 28 -preset ...
0
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1answer
39 views

ffmpeg stopped when set “-i” option with rtsp URL

I am using ffmpeg on Ubuntu 12.4 to get thumbnails from RTSP URL. I confirmed with vlc that this URL is fine, Video file played nicely. The problem is ffmpeg. I command like ffmpeg -itsoffset ...
0
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1answer
78 views

Why some videos play only in a particular media player?

Our client sent us a couple of videos files for audio transcription work. They said that we should use Player Microsoft application 4.8.0.0 to properly run the two files [right clicking these files, ...
0
votes
1answer
42 views

Converting with ffmpeg a .mov to uncompressed .avi results in a black screen in virtualdub

I am trying to convert a .mov to an uncompressed .avi with ffmpeg. As I want no quality loss, I am using the following ffmpeg command: ffmpeg -i toto.mov -vcodec copy -y toto.avi The convertion ...
0
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0answers
39 views

how can I extract from video using ffmpeg with timestamps information

I am using ffmpeg to extract frame and save it into jpg files as follow. ffmpeg -i video.avi -r 1 -f image2 -q 1 %05d.jpg However, how can I get the timestamps information of each extracted frame. ...
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1answer
52 views

Make short timelapse movie from long boring movie?

I have an .mp4 file to turn into a timelapse movie. How can I encode every n frames from the source movie into a new movie file, preferably using ffmpeg? Solutions that extract a bunch of stills ...
3
votes
0answers
60 views

How to convert 1080p to 1080i video using ffmpeg

I am using ffmpeg, trying to convert 1080p to 1080i. I know that -vf tinterlace should do that, but I don't know the exact syntax of use. Currently I'm trying this: ffmpeg -i <input file.mp4> ...
1
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1answer
80 views

Can ImageMagick make thumbnails from video?

I'm trying to extract thumbnails from video via ImageMagick. I found some samples from their official site, but it makes GIF, not PNG. I want a solid thumbnail though. Can it create the same output ...

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