I am working on ubuntu. I have a file.h263 and I don't know how to play it. I've tried ffmpeg -f msg0001.h263 -i file.avi but it didn;t work. Need some help please. I want to convert file.h263 in .avi or mp2 in order to play the file in an android phone. Got any advices? It would be best to have a c++ code. but i didn't find any example, nothing at all.
Please help. If you have a piece of code that does this I would appreciate.
Thx
You should be able to play H263 file and convert it to AVI as the following:
ffplay -i file.h263
ffmpeg -i file.h263 file.avi
For android playback you can keep video stream in H.263 and convert the file to 3GPP (.3gp) or MPEG-4 file format or change file format and codec to MPEG-4 and H.264. For example:
ffmpeg -i file.h263 -vcodec copy -f 3gp file-h263.3gp
ffmpeg -i file.h263 -vcodec h264 -f mp4 file-h264.mp4
See Android supported media formats for more information.
.h263 is old yet great format, and if your software player uses HW accelration to play video that majority of old videocards (including Nvidia, ATI) will provide you HW accelration for video playback for .h263 format files... now various use .h264 format... thus try to convert videos to .h264 format instead of avi...
i think what you are facing is a extension delima .... try renaming it to MP4, then various player will play it without problems..
you can also use vlc.. one of the best video players ever...
Beside GStreamer can play H263 files , and with gstreamer pipelines you can convert various format on flies...
though i usually use Handbreak to convert video files /DVD's, and it is available on windows, Mac as well as on linux ....
P.S. in Gstreamer, you might need to install plugins, install all 2... good, bad and ugly plugin. i am not sure in which .h263 comes in, but must be in one of these three......
Related
I tried getting a simple audio file using this chunk of code off the terminal:
youtube-dl -f bestaudio https://youtu.be/gTEHbBBl_dY
it's the simplest yt-dl formula ever and here's what I got.
[youtube] gTEHbBBl_dY: Downloading webpage
ERROR: gTEHbBBl_dY: YouTube said: Unable to extract video data
so yea...I saw a lot of answers on stack itself but none of them worked for me.
pls help, I'm not a pro yet with homebrew tools.
Extract audio instead of -f to format it to bestaudio
youtube-dl -x
I want to make a transcoding video app from h.264 to h.265.
I have a problem with libavcodec library. I have this library in my project, all function is working, but when i'm trying to set codec :
avcodec_find_decoder_by_name("libx265");
function couldn't find it. Hovewer, when i give "hevc" instead of "libx265" function is working, but it's not the same.
Please for help :)
There is no decoder named libx265
libx265 is only an encoder.
FFmpeg has a native, built-in HEVC/H.265 decoder
It is named hevc. You don't have to do anything special to include or enable it.
There are also several hardware accelerated HEVC decoders that may be available for your system: hevc_cuvid, hevc_mediacodec, hevc_qsv, hevc_rkmpp, and hevc_v4l2m2m.
ffmpeg has implemented codecs (lets call them builtin) and wrappers to third party codecs. It seems/could be that the h265 codec is just a wrapper, that means you have to install a h265 decoder. Besides, did you specify the h265 codec when you configured ffmpeg? Did you build it yourself or pre build via package manager?
Try 'ffmpeg -decoders' at the command line and search for h265.
I am trying to create a movie file (avi, mp4, etc as long as it support windows media player) from a sequence of png files using ffmpeg.I am using C++ "System("ffmpeg command")" to create the movie files once I create the png files (this shouldn't effect movie creation). I was able to create a .avi file using the following command,
ffmpeg.exe -r 30 -i frame_%7d.png test1.avi
Once you create the file it runs in windows media player but does not run in VLC. I have realized, it does lossy compression and the movie is not that high quality (quality decreases with frame rate). I want to have lossless compression (or no compression at all) but needs to be able to play in windows media player. So I tried the following commands,
ffmpeg.exe -framerate 30 -i frame_%7d.png -codec copy test2.avi
This file ran in VLC but didn't run in windows media player. Then I tried put in "-pix_fmt yuv420p" but still couldn't get it to run in windows media player.
ffmpeg.exe -framerate 30 -pix_fmt yuv420p -i frame_%7d.png -codec copy test2.avi
I have also tried using "ffv1" codec and it ran in VLC but not in windows media player
ffmpeg.exe -i frame_%7d.png -c:v ffv1 -qscale:v 0 test4.avi
So, how do I create a lossless movie file from a sequence of png files using ffmpeg that will run in windows media player?
I want to record video coming from a camcorder to a wmv file. I am using ffmpeg libraries and I have it saving the video as an "avi" file. However the requirements of the project is to output a wmv file. Can anyone help me discover how to set up the video and audio codecs?
You can configure for video codec as MPEG4 and audio codec as Windows media audio 2 to get the .wmv file format.
ffmpeg -i input.mp4 -b:v 2M -vcodec msmpeg4 -acodec wmav2 output.wmv
When you use ffmpeg to generate WMV format the output video quality may be slightly less than other format. So it is better to set the qscale value to get better quality video.
So below is my command that I am running. It should be converting it to mp3 but it still exports as a video in flv. What am I doing wrong?
$cmd = '/usr/local/bin/youtube-dl -o "%(title)s.%(ext)s" -x --audio-format mp3 -- '.escapeshellarg($url).'';
youtube-dl will download the video before converting it. Most likely, you don't have ffprobe or ffmpeg installed. Make sure both programs are available (i.e. you get a sensible output for ffprobe --help and ffmpeg --help).
You can directly download the .mp3 file from the youtube site.
For e.g in ubuntu terminal youtube-dl youtube.com/watch?v=qn6CMz18lkQ -f 141 .Most probably 141 is the .mp3 file format code for better quality.