I am so frustrated with this problem. Any time I convert avi files to mp4 files, I can get the audio, but NO video. Here are the various switches I've tried. I don't know how to resolve the situation. I've never had this problem with mpg, mov or any other format, but AVI is frustrating.
Doing this in php but I've also done it from the command line.
(NOTE: I've also tried it with NO extra parameters letting ffmpeg do the full conversion).
(NOTE: It does play the original avi file in any desired Windows or Linux player as is so I know there are is no damage to the original file, but I want to convert to mp4 for the web).
(Final Note*: when using aac it warns of too many bits ...clamping to max if that helps)
Here's the code:
$InputFile - some avi file. I have a ton of them and they all do the same thing.
$OutputFile - same name but with an mp4 extension
$Parameters are various switches I've used.
shell_exec ("ffmpeg -i " . $InputFile . ' ' . $Parameters . ' ' . $OutputFile);
$Parameters = " -profile:v baseline -pix_fmt yuv420p ";
$Parameters = " -acodec copy -vcodec copy ";
$Parameters = " -c:v libx264 -c:a libfaac -movflags +faststart ";
$Parameters = " -c:v libx264 -c:a aac -strict experimental -movflags +faststart ";
$Parameters = " -c:v libx264 -c:a -acodec aac libfdk_aac -movflags +faststart ";
$Parameters = " -c:v libx264 -preset slow -crf 18 -c:a libmp3lame -b:a 128k -f mp4 ";
$Parameters = " -c:v libx264 -crf 19 -preset slow -c:a aac -strict experimental -b:a 192k -ac 2 ";
I really don't get why I only get an audio output. I can see it in VLC player, but, of course that's not my goal. I want it to mp4 to see it on a webpage.
I welcome any help!
Related
I have a web site where user upload videos.
When a video is uploaded I shell_exec 3 ffmpeg commands:
Generate preview:
$cmd = "ffmpeg -ss 1 -i ".$filePath." -vf \"scale='if(gt(dar,360/202),202*dar,360)':'if(gt(dar,360/202),202,360/dar)',setsar=1,crop=360:202\" -frames:v 1 ".$thumbnail;
Compress the video:
$cmd = "ffmpeg -i ".$filePath." -c:v libx264 -crf 23 -preset veryfast -c:a aac -ab 128k -movflags faststart ".$wmoutput;
Add watermark:
$cmd = 'ffmpeg -i '.$wmoutput.' -i new/watermark.png -filter_complex "overlay=10:10" '.$finaloutput;
The problem is that these 3 commands take a lot of time to finish and sometimes it goes over Maximum execution time specialy for video files that are bigger than 300Mo. I can just expand the Maximum execution time but I don't know how many seconds I have to set.
Is there a way to make the scripts above execute faster without having to change the Maximum execution time?
Combine Compress the video and add watermark into one command:
ffmpeg -i input.mp4 -i new/watermark.png -filter_complex "overlay=10:10" -c:v libx264 -crf 23 -preset veryfast -c:a aac -ab 128k -movflags faststart output.mp4
Should be significantly faster and you avoid yet another instance of generation loss.
User can upload any movie (.mov .mpg .avi .flv and many more) And now i would like cut this file from 15 to 25 seconds (part will be 10 seconds only) and convert this small part to FLV as preview of movie.
Now i have some questions:
Should i convert all uploaded movie to flv ? or cut part only and all movie file make as zip ?
How can i cut this file in php 7 ? is it possible ? i found
ffmpeg -ss [start] -i in.mp4 -t [duration] -c copy out.mp4
but this is only for mp4 ?
For HTML5 you can output various formats for compatibility. For example, H.264 + AAC in MP4, H.265/HEVC + AAC in MP4, and VP9 + Opus in Webm:
ffmpeg -ss 30 -t 10 -i input \
-c:v libx264 -preset medium -crf 23 -pix_fmt yuv420p -c:a aac -movflags +faststart h264.mp4 \
-c:v libx265 -preset medium -crf 28 -pix_fmt yuv420p -c:a aac -movflags +faststart h265.mp4 \
-c:v libvpx-vp9 -crf 30 -b:v 2000k -c:a libopus vp9.webm
Adjust -preset, -crf, anf -b:v to your needs. Implementing this into shell_exec should be trivial for those familiar with PHP.
See the following FFmpeg Wiki articles for more info: PHP, H.264, H.265, VP9.
I am trying to convert a video with extension .mov to .mp4 format. Following is the command that I try to use
$file_name = "abc.mov";
$mp4_file = "abc.mp4";
$cmd = 'sudo /usr/bin/ffmpeg -i /path_to_file' . $file_name . ' -strict experimental -vcodec libx264 -pix_fmt yuv420p -profile:v baseline -preset slower -crf 18 -vf "scale=trunc(in_w/2)*2:trunc(in_h/2)*2" /destination_path/' . $mp4_file;
exec($cmd, $out, $res);
However the desired file( with .mp4 ) is not getting created. When I copy the command and paste it inside terminal, the file with the desired format is getting created. However same is not working with exec command in my php code.
I am not able to figure out the actual cause of issue, since it seems out to be strange. Any help shall be appreciated. Thanks in advance
Try putting a '2&>1' at the end of the exec?
Use this code it Work's for me :)
ffmpeg -i input.mov -vcodec libx264 -pix_fmt yuv420p -profile:v baseline -preset slow -crf 22 -movflags +faststart output.mp4
Hope it help you.
I need to convert .webm files to .flv.
I have used
'exec("ffmpeg -i 1.webm -acodec libfaac -ab 96k -ac 2 -vcodec libx264 -vpre hq -crf 22 -threads 0 1.flv");'.
When i use the above code, the file is converting to 1.flv with 0 bytes. No data is in 1.flv file.
I am trying to get FFMPEG to work in php. I just installed ffmpeg and x264 and ran the following command in my terminal:
$command = 'ffmpeg -i /home/gman/Desktop/cave.wmv -acodec libfaac -aq 100 -vcodec libx264 -preset slow -crf 22 -threads 0 /home/gman/Desktop/newvideo.flv
It worked perfectly and created a new flv video from the inital video, just like I wanted.
Now when I try the same thing in php, nothing happens...
$safe_path = escapeshellarg("/home/gman/Desktop/newvideo.flv");
$command = 'ffmpeg -i /home/gman/Desktop/cave.wmv -acodec libfaac -aq 100 -vcodec libx264 -preset slow -crf 22 -threads 0 ' . $safe_path;
exec($command);
Anyone have any ideas? Can I somehow see what exec is doing and see some sort of output? Would appreciate it.
Usually when you are calling ffmpeg in an exec you need to put in the absolute path to ffmpeg eg:
$safe_path = escapeshellarg("/home/gman/Desktop/newvideo.flv");
$command = '/usr/local/bin/ffmpeg -i /home/gman/Desktop/cave.wmv -acodec libfaac -aq 100 -vcodec libx264 -preset slow -crf 22 -threads 0 ' . $safe_path;
exec($command);
http://blog.codyjung.com/2011/05/29/problems-with-lampp-and-exec/
My solution was to simply copy the ones from /usr/lib/i386-linux-gnu and overwrite the LAMPP ones. Could that cause problems later? Maybe, but I guess we’ll deal with that when it shows up.