28 mars

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 05:15
  How to add info to a video and share it with others in React Native - Sanjay Kalal Newest 'ffmpeg' Questions - Stack Overflow
  I am looking for a solution in which I can pick a video from the gallery and add info or overlay inside it and then share the video with the added info in react native. I tried using ffmpeg but it is not working properly I need a proper solution in which I can peak the video, add info to it and share it. I tried ffmpeg but it is not working.
• 05:10
  Incorrect length of video produced with ffmpeg libraries - ivan.ukr Newest 'ffmpeg' Questions - Stack Overflow
  I'm writing a C program that takes series of PNG images and converts them into a video. Video consists of the initial black screen and then each of those images, shown for the same constant amount of time, say 200 ms. I'm using libx264 as codec and mp4 as output format. I'm compiling my program with GCC 12 on Ubuntu 22.04 LTS. I'm using ffmpeg version from Ubuntu repositories. In order to achieve above behavior I've set time base to 1/5 in the both stream and codec. // assume imageDuration = 200 AVRational timeBase; av_reduce(&timeBase.num, (...)
• 05:04
  How to write H264 raw stream into mp4 using ffmpeg directly - Yelsin Newest 'ffmpeg' Questions - Stack Overflow
  I want to wrap the H264 Nalus(x264 encoded) into mp4 using ffmpeg(SDK 2.1), but the output mp4 file could not play. I don't know how to set the pts and dts. Here's my code, using the code from Raw H264 frames in mpegts container using libavcodec and muxing.c from www.ffmpeg.org. My H264 stream has no B-Frame, every nalu starts with 00 00 00 01,the stream begins with sps pps then the h264 data. #include "stdafx.h" #include #include #include "Stream2Mp4.h" #include #include #include #include #include #include (...)
• 01:16
  Empty audio backends for torchaudio list audio backends, with ffmpeg installed on system libraries - Alberto Agudo Dominguez Newest 'ffmpeg' Questions - Stack Overflow
  I installed torchaudio 2.5.1 and a system install of ffmpeg on Windows and get: PS C:\\Users\\> ffmpeg -version ffmpeg version 2025-01-05-git-19c95ecbff-essentials_build-www.gyan.dev Copyright (c) 2000-2025 the FFmpeg developers built with gcc 14.2.0 (Rev1, Built by MSYS2 project) configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-zlib --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth (...)

27 mars

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 22:30
  How to initialize video decoder with a already decoded frame? - Ragdoll Car Newest 'ffmpeg' Questions - Stack Overflow
  Let's say I have an FFmpeg video decoder x264 initially initialized with some parameters. I am using C++ in my scenario. In normal conditions we push an encoded I-frame into such decoder and then referencing encoded P-frames. I have a special case where my I-frame is already decoded. So in my case I want to: push already decoded I-frame into my decoder push referencing encoded P-frames into my decoder How can I initialize the decoder state with already decoded I-frame? Currently to bypass these limitations I have to: create a new (...)
• 22:01
  Audio delay after resuming FFmpeg on Windows - Iman Sajadpur Newest 'ffmpeg' Questions - Stack Overflow
  I'm building a screen recording software for Windows using Python. I use FFmpeg for recording and psutil to pause and resume the process. Here is a sample of my code: import psutil import subprocess process = subprocess.Popen([ 'ffmpeg', '-y', '-rtbufsize', '100M', '-f', 'gdigrab', '-thread_queue_size', '1024', '-probesize', '50M', '-r', '24', '-draw_mouse', '1',  (...)

ginger’s thoughts http://blog.gingertech.net/

• 21:47
  SWAY at RFWS using Coviu - silvia ginger’s thoughts
  A SWAY session by Joanne of Royal Far West School. http://sway.org.au/ via https://coviu.com/ SWAY is an oral language and literacy program based on Aboriginal knowledge, culture and stories. It has been developed by Educators, Aboriginal Education Officers and Speech Pathologists at the Royal Far West School in Manly, NSW. Category: Array Uploaded by: Silvia Pfeiffer Hosted: youtubeThe post SWAY at RFWS using Coviu first appeared on ginger's thoughts.
• 21:47
  PARADISEC catalog for Users - silvia ginger’s thoughts
  This screencast shows how a user of the PARADISEC catalog logs in and explores the collections, items and files that the archive contains. Category: 2 Uploaded by: Silvia Pfeiffer Hosted: youtubeThe post PARADISEC catalog for Users first appeared on ginger's thoughts.
• 21:47
  PARADISEC catalog for Collectors - silvia ginger’s thoughts
  Screencast of how to use the PARADISEC catalog for managing and publishing collections. Category: 2 Uploaded by: Silvia Pfeiffer Hosted: youtubeThe post PARADISEC catalog for Collectors first appeared on ginger's thoughts.
• 21:47
  PARADISEC catalog for Administrators - silvia ginger’s thoughts
  Screencast of how a PARADISEC administrator uses the PARADISEC catalog for managing the consistency of metadata and staying on top of uploaded files. Category: 2 Uploaded by: Silvia Pfeiffer Hosted: youtubeThe post PARADISEC catalog for Administrators first appeared on ginger's thoughts.
• 21:47
  Silvia Pfeiffer Live Stream - silvia ginger’s thoughts
  Category: 2 Uploaded by: Silvia Pfeiffer Hosted: youtubeThe post Silvia Pfeiffer Live Stream first appeared on ginger's thoughts.

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 17:52
  using FFMPEG with silencedetect to remove audio silence - Zahlii Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to use the following command with the latest ffmpeg build to remove silence from my .mp3 files: ffmpeg -i SILENCE.mp3 -af silencedetect=n=-50dB:d=1 -y -ab 192k SILENCE_OUT.mp3 However, the following output is produced: ffmpeg version N-66154-g1654ca7 Copyright (c) 2000-2014 the FFmpeg developers built on Sep 5 2014 22:10:38 with gcc 4.8.3 (GCC) configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab le-iconv --enable-libass (...)
• 17:29
  How can I remove silence from an MP3 programmatically? - Benjamin Oakes Newest 'ffmpeg' Questions - Stack Overflow
  I have MP3 files that sometimes have silence at the end. I would like to remove this silence automatically. From what I can tell, it is "perfect" silence (0 amplitude), not background noise. The length of the content and the silence varies. I found some other questions about cropping to the first 30 seconds or cropping to X and X+N seconds using ffmpeg. I would think I could use a similar approach, as long as I have a way to find when the silence starts. How would I do that programatically? For example, one possible solution would be to have a command that finds (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 16:21
  vulkan_functions: add note to update ff_vk_extensions_to_mask - Lynne git.videolan.org Git - ffmpeg.git/rss log
  vulkan_functions: add note to update ff_vk_extensions_to_mask Otherwise, the extension looks like its enabled, but isn't actually used by anything. [DH] libavutil/vulkan_functions.h
• 15:47
  vulkan_loader: remap video_maintenance2 in ff_vk_extensions_to_mask - Lynne git.videolan.org Git - ffmpeg.git/rss log
  vulkan_loader: remap video_maintenance2 in ff_vk_extensions_to_mask This was broken. [DH] libavutil/vulkan_loader.h
• 12:49
  vulkan_decode: allow using NULL offsets/nb_slices in ff_vk_decode_add_slice() - Lynne git.videolan.org Git - ffmpeg.git/rss log
  vulkan_decode: allow using NULL offsets/nb_slices in ff_vk_decode_add_slice() For codecs like VP9 which use a single slice. [DH] libavcodec/vulkan_decode.c
• 12:47
  vulkan_decode: allow using NULL sequence_params when decoding - Lynne git.videolan.org Git - ffmpeg.git/rss log
  vulkan_decode: allow using NULL sequence_params when decoding The function had some checks to allow for this, but as it always tried to dereference a bufferref, it wasn't fully ready. [DH] libavcodec/vulkan_decode.c
• 12:44
  lavu/vulkan: skip adding NULL buffers as deps in ff_vk_exec_add_dep_buf - Lynne git.videolan.org Git - ffmpeg.git/rss log
  lavu/vulkan: skip adding NULL buffers as deps in ff_vk_exec_add_dep_buf Allows for cleaner code. [DH] libavutil/vulkan.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 12:10
  Rewrite video with ffmpeg with given non-equidistant times for each frame - Aleph0 Newest 'ffmpeg' Questions - Stack Overflow
  In one of my projects it is necessary to synchronize a video with a different datasource. I already have the video as a mts file. I also exactly know which frame will be displayed at which time. This times are not necessarily equidistant. For simplicity assume that my video consists just out of 5 frames: Frame No Time 1 1s 2 3s 3 5s 4 8s 5 12s What kind of ffmpeg command using a list of times give by a simple text file can be used to (...)
• 10:28
  How can I display an image from Uint8List with the format AVFormat.RGBA8888 more quickly in Flutter? - Salawesh Newest 'ffmpeg' Questions - Stack Overflow
  I'm looking to display images as quickly as possible. input data is in the form of Uint8List from dart:typed_data, data is encoded in AVFormat.RGBA8888 from ffmpeg. I'm looking for a solution to improve the performance of my graphics rendering code. And to see if it's possible to do it in a thread (isolate or compute). Here's my current working code. final buffer = await ui.ImmutableBuffer.fromUint8List(data.data); final descriptor = ui.ImageDescriptor.raw( buffer, width: data.width, height: data.height, pixelFormat: (...)