Articles about fmpeg | UserComp.com | Page [ 4 ]

How to Fix Video Encoding to AV1 for Smoother Playback

Fix video buffering and stuttering by transcoding files to AV1 using FFmpeg for smaller sizes and smoother playback.

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Selecting GPU: Intel Xe vs Nvidia for FFmpeg with qsv codec

Resolve FFmpeg qsv codec errors by selecting Intel Xe GPUs, as Nvidia hardware lacks native Quick Sync Video support.

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Unexpected output when using FFMPEG to add multiple English Subtitles to MP4 file

Resolve FFmpeg overwriting subtitles by explicitly mapping each input stream and using the mov_text codec to preserve multiple subtitle tracks in MP4 files.

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Merge Audio Tracks (Concat) Losslessly with FFmpeg Online

Merge multiple M4A files into a single lossless track using FFmpeg's concat demuxer to avoid re-encoding and preserve original audio quality.

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Re-reading Local M3U8 Files with FFmpeg

Solve FFmpeg ignoring updates to local M3U8 files by using a shell script to detect changes and restart the process.

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Setting Custom PTS for M4V Video Start Point with FFmpeg

Reset M4V video and audio start points to zero using FFmpeg setpts filters without re-encoding.

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How to Create Animated GIF Sequence Image Files using FFmpeg

Resolve color banding and distortion when converting image sequences to animated GIFs by using FFmpeg's two-pass palette generation.

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Slide Text Using Drawtext in FFmpeg: A Tech Support Guide

Slide text across video using FFmpeg drawtext filter with time-based expressions for automated scrolling.

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Generate a video with an image every 5 seconds using ffmpeg

Create a video displaying a single image for five seconds using ffmpeg with the -loop and fps filter options.

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Troubleshooting G.726 Audio Playback with ffmpeg: Old Webcam File Issue

Resolve G.726 audio playback failures in legacy webcam files by extracting and converting the stream to MP3 using ffmpeg.

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Replacing Soundtracks in an MP4 Video using FFmpeg with Complex Concat Audio

Replace MP4 audio with two concatenated AAC files using FFmpeg concat filter to avoid re-encoding video and preserve quality.

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How to Convert PNG to MOV with Exact Colors Using FFMPEG

Fixes color shifts in PNG to MOV conversions by explicitly setting BT.709 color space, primaries, and IEC 61966-2-1 transfer characteristics in FFmpeg.

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How to Process Buffer Data and Send it to RTMP using ffmpeg

Resolve low-latency RTMP streaming by piping raw or encoded video buffers directly into ffmpeg via stdin without intermediate file storage.

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FFmpeg 7: Unable to Add Multiple Subtitle Streams in MKV (No Longer Possible?)

Resolve FFmpeg 7 failing to add multiple subtitle streams to MKV by using explicit -map flags for each input index.

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FFmpeg RTSP H264 Streaming Issue: Couldn't Find Codec Parameters

Fix FFmpeg RTSP H264 codec parameter errors by using -rtsp_transport tcp and explicit format flags to ensure reliable stream parsing.

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Error opening output file during FFmpeg operation

Resolve FFmpeg output file errors by fixing permissions, releasing file locks, correcting path syntax, and ensuring sufficient disk space.

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Obtain High AAC Compression with FFmpeg without Intermediate OPUS File

Resolve WAV to AAC conversion errors by using the correct FFmpeg command with explicit encoder and bitrate flags.

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FFmpeg Command Causes Unexpected Reboots on Ubuntu

Resolve FFmpeg-induced Ubuntu reboots by diagnosing hardware instability, thermal throttling, and power delivery failures.

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Possible Test FFmpeg Command Without Actual Running: A Comprehensive Guide

Validate FFmpeg commands for syntax and stream mapping errors without consuming resources or disk space.

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Concatenate FLAC, Opus, WAV File Parts with FFmpeg

Resolve FFmpeg concat demuxer failures with Opus and FLAC by converting files to PCM WAV before merging.

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How to Add SRT Subtitle File to an Existing .TS File using FFmpeg

Resolve duplicate subtitle streams in TS files by explicitly mapping video and audio tracks while adding a new SRT file with FFmpeg.

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Determining Format of Uncompressed ZIP Files with ffmpeg: Handling Media Files in Archives

Resolve FFmpeg unrecognized format errors by extracting media from ZIP archives before using ffprobe to analyze individual files.

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Invalid PNG signature FFmpeg Error: How to Fix It

Fixes the Invalid PNG signature error in FFmpeg by verifying input file integrity and correcting codec mismatches.

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How to Shrink Multiple Videos into Specific Time using FFmpeg

Shrink multiple videos to a specific duration using FFmpeg filters without re-encoding.

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FFMPEG: RTSP Clients Sending 'KeepAlive' Packets to IP Cameras

Resolve RTSP session timeouts with IP cameras by forcing FFmpeg to use TCP transport for automatic keepalive.

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How to Read a Remote S3 URL with FFMpeg

Resolve FFmpeg protocol errors when accessing Amazon S3 by using HTTPS URLs instead of unsupported s3:// URIs.

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Encountering Issues While Encoding VP9 Files with FFmpeg: Video Dimensions Greater Than 16256 Pixels

Resolve FFmpeg VP9 encoding failures for videos exceeding 16256 pixels by scaling frames with the -vf scale filter.

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Troubleshooting FFMPEG Conversion of HEVC with Alpha MOV to PNG Sequence

Resolve FFmpeg HEVC alpha MOV to PNG conversion failures by ensuring correct pixel format handling.

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FFmpeg Batch Script Not Working on Windows 11

Resolve FFmpeg batch script failures on Windows 11 by fixing PATH configuration, quoting file paths with spaces, and adjusting execution permissions.

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Streaming to Facebook Live with ffmpeg

Solves Facebook Live streaming failures by providing correct RTMPS configuration, bitrate optimization, and ffmpeg command structures.

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Convert MP4 to AMV Faster with ffmpeg

Resolve playback failures on legacy devices by converting MP4 to AMV using ffmpeg with correct codecs and resolution.

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FFmpeg: Best PNG Settings for YouTube

Extract high-quality 4K PNG frames from video using FFmpeg with correct pixel formats to preserve color accuracy and resolution.

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Troubleshooting Different FFmpeg Signatures in Video Playback

Resolve FFmpeg video signature mismatches by diagnosing stream properties and metadata differences using ffprobe.

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Troubleshooting Index Error with Four Inputs in FFmpeg

Resolve FFmpeg index errors with four inputs by verifying stream layouts via ffprobe and ensuring consistent track counts across all sources.

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How to Use Ffmpeg OpenCl Filters That Are Accelerated with nvenc

Resolve FFmpeg OpenCL errors on NVIDIA GPUs by using CUDA and NPP filters to keep video frames on the GPU for NVENC acceleration.

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How to Improve Quality of MP3 Output After Applying Filters

Prevent generation loss and audio degradation by applying filters to uncompressed PCM streams before final MP3 encoding.

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How to use pipewire with puppeter

Resolve Puppeteer headless audio and display failures by configuring Xvfb for rendering and routing Chromium's PulseAudio output to PipeWire.

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Audio Issue on MKV to M3U8 Conversion Using FFmpeg

Resolve silent or distorted audio in HLS playlists by forcing AAC transcoding and setting a 48000 Hz sample rate.

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How to detect with ffmpeg if the stream has video or audio or both

Detect if a media file contains video, audio, or both using ffprobe JSON output for automated pipeline validation.

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Concatenating MP4 Files: Overcoming Parsing Packet Header Errors with FFmpeg's concatlist

Resolve MP4 concatenation parsing errors by using FFmpeg's concat demuxer with a text list to merge files without re-encoding.

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How to Prevent Lost Embedded Subtitles when Repairing Video with FFmpeg

Prevent lost embedded subtitles during video repair by using -c:s copy and -map 0 to preserve subtitle streams without re-encoding.

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Stream Copy USB Webcam on Remote Raspberry Pi to FFmpeg on Windows 11

Stream a remote Raspberry Pi USB webcam to FFmpeg on Windows 11 using MediatX and RTSP to bypass SSH latency.

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Need Help Installing FFmpeg Server on Plesk Obsidian 18.0.59 with Ubuntu 22.04.4 LTS for Custom MP3 Player

Resolve package not found errors when installing FFmpeg on Ubuntu 22.04 with Plesk by enabling the Universe repository and updating package lists.

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Setting Output Bitrate Ratio for FFmpeg Audio/Video Combine

Resolve unpredictable FFmpeg audio-video bitrate distribution by manually calculating and setting -b:v and -b:a flags to enforce a precise bandwidth ratio.

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Fixing Greyscale Issue: Stills Converted to Video in ffmpeg

Resolve ffmpeg converting color still images to greyscale video by forcing the yuv420p pixel format.

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Using FFMpeg to match images with videos

Resolve FFmpeg image duration issues by using the concat demuxer to precisely control static visual display times without re-encoding.

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Downsampling 4:4:4 YUV video: 4:2:2 issue with FFmpeg

Resolve incorrect chroma subsampling when converting 4:4:4 YUV video to 4:2:2 in FFmpeg by explicitly specifying the target pixel format.

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Quantify Compression Artifacts in Videos

Measure video compression artifacts using FFmpeg PSNR and SSIM filters to objectively evaluate visual quality degradation between original and encoded streams.

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Convert MP4 to AVI using FFmpeg on macOS

Resolve MP4 to AVI conversion errors on macOS by installing FFmpeg via Homebrew and applying explicit codec and scaling commands for compatibility.

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Crop Detection: Ensuring Frame Cropless Output with FFprobe and FFmpeg

Automatically detect and remove black borders from video frames using FFprobe analysis and FFmpeg cropdetect filter to ensure clean, edge-free output.

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