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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0
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1answer
13 views

ffmpeg segfaults over certain resolution

I'm trying to use ffmpeg to record my whole screen (1366x768), but if I set the video size above a certain size, I get a segfault. As can be seen in the output, I compiled from source less than 1 hour ...
-3
votes
0answers
21 views

“no such file or directory” while converting mov to avi using ffmpeg [on hold]

I am trying to convert mov files to avi files using ffmpeg. I have downloaded ffmpeg and followed online guides on how to do this, but I always get the response "no such file or directory". There is ...
0
votes
0answers
24 views

Find if a short MP3 exists in a longer MP3

I have 2200 MP3s are were cut from longer MP3s in Audacity and export at 128 kb/s. Unfortunately, I would like to have these re-cut at 320 kb/s (the same as the source MP3s). Is there a tool that can ...
-6
votes
0answers
24 views

Can't type in ffmpeg on MAC OSX [on hold]

I just downloaded ffmpeg for MAC OS X but I cannot type anything in the command session. What could the problem be? Can you help me please? :) Thanks.
1
vote
0answers
25 views

Properly downmix 5.1 to stereo using ffmpeg

I have a 5.1 audio track from a film where front left and front right contains music, and center contains dialogue. Playing the 5.1 track in VLC blends everything together nicely. I'm trying to ...
1
vote
1answer
51 views

ffmpeg merging mp3, mp4, no sound with copy codec

I am using ffmpeg to create a video. The source is a set of png images (one per frame) and an mp3 file. I want to create an mp4 with sound. I am doing it in two stages for now. Step one converts the ...
1
vote
1answer
19 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 ...
1
vote
1answer
27 views

fade in png with transparency into an mp4 video

I am trying to overlay a png file with transparency into an mp4 video the original video is 20sec and I want to overlay the transparent png from 00:10 to 00:20 of the original video, with the 00:10 - ...
0
votes
1answer
11 views

ffmpeg/ffprobe get last (few) frame info with show_frames

I am currently experimenting with ffmpeg and ffprobe. I basically want to get info of last frame from "show_frames" but "show_frames" prints ALL the frames. is there any way to filter this?
0
votes
1answer
10 views

How to rotate video that comes from android device with same quality by using ffmpeg [duplicate]

I want to rotate video that comes from android device that always display in landscape form; so how we convert into portrait form with a same quality. I am using these code but unable to find exact ...
1
vote
1answer
24 views

FFmpeg debug verbosity

I'm debugging ffmpeg with -loglevel debug, and I want the debug messages (which are basically just printing to terminal the value of different variables) but in front of each line is the file offset ...
0
votes
0answers
13 views

FFMPEG conversion from webm to mp4 [duplicate]

I use the following command for converting from a webm to mp4. fmpeg -i input_file.webm -c:a copy output_file.mp4 It is converting very slowly. It takes as much time as the video. Can anyone ...
0
votes
1answer
35 views

combine three videos between specific time using ffmpeg

I have a situation where I want to combine 3 videos The first video (guide.mp4) is the guide and the other 2 are small pieces that need to go inside the "guide". In a graphical manner, I have the ...
2
votes
0answers
16 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
votes
0answers
44 views

How to keep/force aspect ratio using ffmpeg

I would like to remove pt-br audio and convert english DTS to AC3 and I'm using this command: ffmpeg -i input.mkv -c:v copy -c:s copy -c:a ac3 -ac 2 -map 0:0 -map 0:2 -map 0:3 -aspect 16:9 test.mkv ...
0
votes
0answers
14 views

Output of the ffmpeg -r command [duplicate]

when I execute ffmpeg -i >video file> -r 24 -t 100 %d.jpeg I see output lines like frame= 47 ... time=6.70 which I guess is the time stamp of frame 47. But this data only shows up for ...
0
votes
1answer
23 views

How do I reduce frame-rate without increasing duration?

I'm trying to convert a 24fps video to 12fps. While it seems like the conversion is working, ffmpeg is also increasing the duration of the output video (about a second longer). It would seem like the ...
1
vote
0answers
26 views

FFmpeg Unable to find a suitable output format for … [RPi]

I was trying to set-up ffmpeg on RPi to stream video from webcam. This is my launch script: ffserver -f /etc/ffserver.conf & ffmpeg -v verbose -r 5 -s 640x480 -f video4linux2 -i /dev/video0 ...
0
votes
2answers
35 views

Compiling FFcast for Ubuntu 14.04, “libx11 is required”?

Here's what I've run so far: $ git clone --recursive https://github.com/lolilolicon/FFcast.git $ ./bootstrap $ configure --enable-xrectsel --prefix /usr --libexecdir /usr/lib --sysconfdir /etc The ...
1
vote
2answers
33 views

ffmpeg: disable one of a several audio streams

I've got an video file with two audiostreams: Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 960x540, 58 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 180k tbc Metadata: ...
0
votes
0answers
22 views

Reduce Memory usage of ffmpeg Live streaming rtsp

Is there any way to reduce the resource usage of server while streaming a video through ffmpeg Iam using following command ffmpeg -i "rtsp://channelurl" -f flv -r 25 -s 640x480 -an ...
0
votes
1answer
35 views

ffmpeg - video from single image with (multiple) video overlays

i'm using the following ffmpeg command to generate a (15s) video from a single image ffmpeg -loop 1 -i image.png -c:v libx264 -t 15 -pix_fmt yuv420p -vf scale=1280:720 out.mp4 The second command ...
1
vote
1answer
14 views

Unable to find a suitable output format for '\' \: Invalid argument

I tried to merge 6 mono WAV files into one 5.1 WAV by the following command line, but getting the error message as shown in the title: ffmpeg -i front_left.wav -i front_right.wav -i front_center.wav ...
0
votes
0answers
28 views

avconv and ffmpeg: errors reading png files

I'm trying to use avconv to overlay data onto a video. I generate PNG files representing the overlay data at 4fps. The PNG files are the 120px wider and 60px taller than the original video, because ...
0
votes
1answer
28 views

ffmpeg trying to hardcode subs using -c:s mov_text but fails

Please bear with me; I'm still learning the intricacies of ffmpeg and have hit a problem with subtitles. So, I am trying to change the container of a video from mkv to mp4, and simultaneously ...
0
votes
0answers
16 views

How to enable php extention in centOS 6.5 with php 5.5

I have installed ffmpeg extension using this tutorial in Cent OS 6.5 with PHP 5.5. When I check with # ffmpeg command in terminal. it shows me following output ffmpeg version 2.2.1 Copyright (c) ...
0
votes
0answers
34 views

ffmpeg error when encoding h264 mp4 video

I'm trying to do a simple encoding of an mp4 in h264 to mp4 but I keep getting the error: Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width ...
-2
votes
0answers
20 views

Is there a list of file extensions that ffmpeg supports [duplicate]

I know this question has been asked before, here What file extensions does ffmpeg support? but the question is older than one year and no acceptable answer was given. Is there a list of file ...
0
votes
1answer
25 views

FFmpeg build configuration for just AAC, MP3, WAV

I need to use ffmpeg for just converting audio files between AAC, MP3, WAV only. So I want to compile ffmpeg for my requirement. But I don't know best ./configure bla bla bla... commandline for my ...
0
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0answers
37 views

What is the lightest possible way to record a screencast with ffmpeg?

I would like to capture a sreencast at 60fps. I tried with this: ffmpeg -f alsa -ac 2 -i pulse -c:a pcm_s16le -f x11grab -r 60 -s 1920x1080 -i :0.0 -c:v libx264 -preset ultrafast -crf 0 out.mkv ...
0
votes
1answer
36 views

ffmpeg says that “'.mkv' is not a suitable output format”

I have trouble with ffmpeg, I want to do a two-pass encoding, plus denoise and deblock if possible. This is a command I thought would work but I am getting all sorts of problems: ffmpeg -y -i ...
0
votes
0answers
20 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 ...
1
vote
0answers
30 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 ...
2
votes
0answers
51 views

Get webrtc-like latency with ffmpeg?

I've been using this between Chrome and my phone: http://www.webrtc.org/demo And the latency is really good - less than 1 second. I've been trying to replicate that on my computer with no success. ...
0
votes
1answer
72 views

Batch converting MP3 and still image PNG to MP4 videos

What do I type in the Windows cmd for this to work? I found a code that should work on Linux but I'm on Windows. The Linux code is: for mp3 in "*.mp3"; do ffmpeg -f image2 -loop 1 -i picture.png ...
0
votes
1answer
28 views

How to install YASM 1.2.0 and compile FFMPEG library on mac?

I am trying with FFMpeg for this i need to compile FFMPEG library.To compile FFMPEG Library i need to install YASM 1.2.0.But i don't know any command ? Thanks in advance?
0
votes
2answers
45 views

Getting value from file using Windows Batch scripting

Using Windows Batch scripting, I want to get the max_volume value (-2.9 in the following example) from a ffmpeg output written to a log file: [Parsed_volumedetect_0 @ 0000000005428b20] n_samples: ...
1
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0answers
38 views

Embed album art image to FLAC file with ffmpeg

i am trying to embed Album Art to a FLAC file with ffmpeg. It seems that it cannot embed Album Art to a FLAC File and the file that is generated has zero length. I know that you can put the image in ...
0
votes
2answers
44 views

Create a video file from an audio file and add visualizations from audio

My initial thought was to upload audio files to YouTube along with video that is inspired from the audio. The particular visualization can be in different form such as spectrum, spectogram, or other ...
0
votes
0answers
17 views

Add credits to the end of the video

Is it possible to use ffmpeg to make credit titles at the end of the video ? I have a very long string of authors separated by comma as input. Managed to create 1 frame and append all the string to ...
0
votes
1answer
22 views

ffmpeg: How does ffmpeg decide which frames to pick when fps value is specified?

I am using ffmpeg to extract 3 frames per second using this command ffmpeg -i input.flv -f image2 -vf fps=fps=3 out%d.png I am wondering if I set the fps value, then how does ffmpeg select 3 ...
1
vote
0answers
32 views

How to encode XviD using ffmpeg for Home Theater/DVD Player?

I wanted to convert a file so I can play it my DVD player which only works with divx/xvid. I tried : ffmpeg.exe -y -i "in.mp4" -t 480.00 -vf scale=720:301,pad=720:576:0:137 -map 0:v:0 -map 0:1 -b:v ...
0
votes
0answers
18 views

sample_full_transcode , Video is not converted properly using Hardware acceleration

On going through sample_full_transcode provide @ https://software.intel.com/sites/default/files/MediaSamples_Windows_5.0.491.98719.msi I observed trancoding video is good with Software acceleration, ...
0
votes
0answers
18 views

How to add filters to ffmpeg, mp

I tried to use ffmpeg filter 'mp' but it reports there is no such filter. what I tried: 'ffmpeg -i input.avi -vf mp=ep2=xxx output.avi' And I build ffmpeg from this link: ...
2
votes
1answer
70 views

FFmpeg - Cut video into segments, transcode them individually, then concatenate & output to .ts

This is a follow-up question to audio error when concatenating clips using ffmpeg What I'd like to achieve is the following: Cut an input video into chunks Transcode each chunk (video and audio) ...
1
vote
0answers
59 views

FFMpeg generated m3u8 segmented videos long delay before playback starts

I am using ffmpeg to generate a segmented list of files in order to stream them to an iOS app. The list of files is generated fine but when it comes time to play them, the video needs to be downloaded ...
0
votes
2answers
58 views

Can ffmpeg detect the actual bitrate of an audio file?

Can ffmpeg tell me if an audio file has been upscaled or not? I see in this article, they used a spectrum analyzer to check for the real bitrate of an audio file. Can ffmpeg determine the real bitrate ...
0
votes
1answer
40 views

Cut video after certain time?

So I have found out how to cut a video at a specific time frame by using the following command ffmpeg -i input.wmv -ss 00:00:30.0 -c copy -t 00:00:10.0 output.wmv ffmpeg -i input.wmv -ss 30 -c copy ...
0
votes
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 ...
3
votes
1answer
75 views

How do I extract the timestamps associated with frames ffmpeg extracts from a video with the -r option?

ffmpeg -i myvid.mp4 -r 25 -t 100 image-%d.jpeg Is the command I'm using to extract frames and it's working just like I expected. However I'd also like to look at the timestamps of the frames. ...