Questions tagged [transcode]
The transcode tag has no usage guidance.
99
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ffmpeg doesn't have access to qsv nor vulkan
I'm running gentoo, and I have media-libs/oneVPL-intel-gpu installed, and latest mesa drivers, and intel gmm, however, qsv refuses to transcode and gives me the following error everytime
ffmpeg -...
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How much and what data is lost in ffmpeg transcoding? [closed]
I'm a ffmpeg noob, I don't know much about it except for a basic idea about encoding/decoding and a few videos I watched over youtube about it's usage. I also don't have a big background in digital ...
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ffmpeg package loss during *local* transcoding
I'm trying to transcode videos with outdated codecs/containers, mostly .wmv or .avi files.
The following ffmpeg (v6.1.1) command works and produces a working .mp4 file that doesn't seem to present any ...
- 101
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handbreak duration for OMF files
When I preview an OMF video file in handbreak it plays in full though in low quality. However, the duration shown on the main screen shows a duration of 00:00:00 and when I try to export to mp4 it ...
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FFMPEG: transcode interlaced J2K
i've been tasked with developing a solution using ffmpeg that will transcode archival videos into FFV1. the videos are all JPEG2000, but some are uncompressed and others are compressed. as the ...
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240
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Green pixelated issue when applying -vf flag to ffpmeg hls transcoding
I'm trying to create chunks of multiple bitrates to play them smoothly across various devices and bandwidth.
But the ffmpeg command output is creating green pixelated video. If I remove the -vf flag ...
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375
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How to use VP9 transcoder when streaming video in VLC Player?
I was trying to stream video with VLC using the very low latency VP9 encoder.
Both my OS codec library and VLC player (3.0.16) has been upgraded to the latest version
When I select VLC Player > ...
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498
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ffmpeg cli settings for the most accurate seeking in the output video
I have a problem with video encoding for HLS stream.
I've found that most video players not support frame accurate seeking or pausing at specific frame and they can't really give us the accurate ...
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av_interleaved_write_frame(): Cannot allocate memory, Error writing trailer of udp
I'm transcoding from udp input to mpegts udp output. After several hours ffmpeg used all ram memory. I don't know where the problem is.
Command:
ffmpeg -hwaccel vaapi -hwaccel_output_format vaapi -i &...
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FFMPEG: Sony IPCM 24bit four channel Audio and Final Cut Pro x from Sony A7S III or FX3
I just got a new camera that uses IPCM Files for four channel audio 24 bit tracks in the video. Is there a way to BATCH-rewrap those files so that they are readable in Final cut for example.
There has ...
user1682242
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458
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Ffmpeg: Is it possible to use -itsoffset option without transcoding for live RTMP streams?
I am using -itsoffset option for delaying the video track of a live RTMP stream by few seconds but the problem is that I must use -c:v libx264 or other codecs, I cannot use -c:v copy, I want to use ...
- 130
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What is the suitable H/W compatibility for av-1 encoding
Some videos are transcoded, h264 on ARM machine, h265 on Intel Skylake and av-1 on Intel RocketLake. File savings are better with av1 at the same quality but still at a high computational cost.
Avg ...
- 19
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457
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FFmpeg transcode piped mp4 with MOOV at end - but I can read it twice
I need to transcoding an MP4 file using that I can only access via a stream. The MOOV atom is at the end of the file. I do not have the ability to seek to a specific part of the file, only read a pipe ...
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Parallel transcoding with FFmpeg on M1 Mac
I'm trying to determine how effective an M1 Mac would be for transcoding video using FFmpeg (specifically resizing and adjusting bitrate). I can do single transcodes using a command like this:
ffmpeg -...
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how to convert a given video file to all possible codec/container format combinations
I posted the same question in Video Production StackExchange site 8 days and there is not even a single answer to that up till now. So now I decided to try my luck here in Superuser site.
My semi-...
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