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Questions tagged [decoding]

36 questions
32
votes
1 answer

ffmpeg - How to copy|extract encoding settings from existing media file?

I wished to be able do this multiple times now so I ask. If I have an existing video or audio file, ffmpeg, mplayer and other media players can detect at least some of it's "propreties" like container, codec and bitrate used, probably various…
n611x007
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7
votes
2 answers

Can I crop an image without fully loading it into memory?

I managed to generate a PNG image with a fractal. The image is 65,536 pixels high and 65,536 pixels wide. It’s too big to be decoded into memory and displayed. It has probably a lot of unused space near the borders and I want to trim it to…
matj1
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6
votes
1 answer

FFmpeg - PNG / JPG - Invalid data found when processing input

I am trying to add a watermark to a video with FFmpeg. I have a custom build of FFmpeg that I am creating with a view to keep the binary size down. I seem to have excluded the ability for FFmpeg to read PNG / JPG images in this process: ffmpeg -i…
Jon G
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4
votes
3 answers

ffmpeg hangs when creating a video

I am trying to insert an audio channel with a video: first of all I extract the audio from the original video for processing: ffmpeg -i lotr.mp4 lotr.wav I then extract all frames for later processing too: ffmpeg -i lotr.mp4 -f image2 %d.jpg When…
firas
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3
votes
0 answers

How can I reduce latency on VLC

I 'm working on a video streaming application. Server is a Linux machine (ffmpeg-ffserver) and client is a Windows machine (vlc player). There is a latency of about 6 seconds. Despite the fact that server and client start together, client starts…
dempap
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3
votes
1 answer

Why does FFmpeg decode a raw YUV420p video?

Why does FFmpeg decode a raw video in the YUV420 planar 8 bits pixel format, when it's also encoding the video using the same YUV420p pixel format? I've ran a couple benchmark tests encoding only raw YUV420p video using the MPEG2 encoder on a…
Omega
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3
votes
3 answers

Is it illegal to use software video ripping software such as HandBrake, AnyDVD, etc?

Is it illegal for one use a ripping and decoding software to rip his or her own DVD collection? Does the Digital Millennium Copyright Act make it illegal? I was always under the impression that a person may make legal copies of his or her own DVD…
SgtOJ
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3
votes
1 answer

audio: No such file or directory

I am trying to decode an mp3 to a raw file. I am trying to use madplay to accomplish this. I am running Debian Etch kernel 2.6.26-2-amd64. I installed madplay using apt-get install madplay. I am trying to output to raw format like this: madplay -b…
muncherelli
  • 2,539
2
votes
3 answers

Does AMD Support on-die video decoding?

Do any AMD processors support on-die video decoding in the same vein as the Intel core series? If so, can anyone point me to any articles that compare the two?
mrK
  • 183
2
votes
3 answers

Reset insyde H20 bios admin password

I have a Lenovo G470, i3 processor(with integrated Intel hd 3000 graphics) with insyde H20 BIOS 40CN33WW (V2.19) (x64) whose bios is locked. Back story A year ago I had disabled UEFI boot and booting from Pendrive and added Admin by password,…
Chemist
  • 214
2
votes
2 answers

Chrome video decoding GPU or CPU

If I watch a video on the internet in the chrome browser, and the video is encoded with H265 or VP9 (or the future AV1), and I have a Nvidia GPU (GTX 1080): Is the video decoding happening on the GPU or the CPU? (I have hardware acceleration enabled…
Stefan B
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2
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1 answer

Is it possible to decode 'octet stream' .bin file?

Tidal.com streams flac files, but it does not provide with file download, which is what I want. As you would expect from a big company such as Tidal, upon my inquiry, its support service in an utmost polite and friendly manner advised me to go funk…
user498283
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1
vote
0 answers

How do I view an AVI file that requires GTCC codec?

I have pretty much tried every type of decoder package out there (K-lite, CCCP, Satsuki, etc.) but no luck. I used an old webcam back in the early 2000s when recording. Really need to know what this video has.
Humble Val
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1
vote
1 answer

How to convert ADPCM to wav in Windows?

I have the following frame format of my ADPCM data The frame format of the ADPCM is # byte | Contents ---------------------------------------------------------- 0 | Encoder state: LSByte of 1st PCM value in frame 1 | Encoder…
chwi
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1
vote
3 answers

Is it possible to decode such filenames?

Sometimes, when you upload your photos to certain social networks, they change your photos' filenames from something like pchelka_mia.jpg to ze58dadc2.jpg. I tried to delete a photo and software magically (but only once) decoded filename …
DrStrangeLove
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