ffmpeg.wasm | ffmpeg.wasm
ffmpeg.wasmffmpeg.wasm is a pure WebAssembly / JavaScript port of FFmpeg enabling video & audio record, convert and stream right inside browsers! Data Securityffmpeg.wasm runs only inside your browser, data security is gaurantee as no data is sent to remote server. Powered by WebAssemblyffmpeg.wasm transpiles ffmpeg source code to WebAssembly code using Emscripten to achieve optimal performance.
FFmpegã§å‹•ç”»ç·¨é›†ã‚’ã™ã‚‹ã‚¬ã‚¤ãƒ‰ - moriyoshiã®æ—¥è¨˜
ã“ã‚“ã«ã¡ã¯ã€‚年末ã«ãªã‚Šã€ã¾ã™ã¾ã™ã‚³ãƒžãƒ³ãƒ‰ãƒ©ã‚¤ãƒ³ã§å‹•ç”»ç·¨é›†ã‚’ã™ã‚‹æ©Ÿä¼šãŒå¢—ãˆã¦ãã¦ã„ã‚‹ã‹ã¨æ€ã„ã¾ã™ãŒã€çš†æ§˜ã„ã‹ãŒãŠéŽã”ã—ã§ã—ょã†ã‹ã€‚普段触れã¦ã„ãªã„ã¨ã¤ã„ã¤ã„忘れã¦ã—ã¾ã†ffmpegã®ã‚ªãƒ—ション群。ãã‚“ãªã‚ãªãŸã®ãŸã‚ã®ãƒãƒ¼ãƒˆã‚·ãƒ¼ãƒˆã§ã™ã€‚ 基礎編 トランスコーディング ffmpeg -i input.mp4 -c:v libx264 -preset medium -c:a libfdk_aac output.mp4 ã¾ãŸã¯ ffmpeg -i input.mp4 -vcodec libx264 -preset medium -acodec libfdk_aac output.mp4 解説 -c:v オプションã¯æ˜ åƒã‚³ãƒ¼ãƒ‡ãƒƒã‚¯ã‚’ã€-c:a ã¯éŸ³å£°ã‚³ãƒ¼ãƒ‡ãƒƒã‚¯ã‚’指定ã™ã‚‹ã€‚å¤ãã¯ãã‚Œãžã‚Œ -vcodec -acodec ã¨ã„ã†ã‚ªãƒ—ションã§ã‚ã£ãŸã€‚両者ã¯ç‰ä¾¡ã§ã‚る。 -preset 㯠libx264 ã®
ffmpegã®ä½¿ã„方：tech.ckme.co.jp
ffmpegã¯ã€ç„¡æ–™ã§ä½¿ãˆã‚‹å‹•ç”»ãŠã‚ˆã³éŸ³å£°ã®ã‚¨ãƒ³ã‚³ãƒ¼ãƒ€ã§ã‚る。ã“ã“ã§ã¯ã€ffmpegを使ã£ã¦ã€H.264ã€webmã€wmvãªã©ã®å„種動画ã«å¤‰æ›ã™ã‚‹æ–¹æ³•ã‚’解説ã™ã‚‹ã€‚ ffmpegã¯ã€ä½¿ã„æ–¹ã¯ãã‚ã‚ã¦ç°¡å˜ã§ã‚る一方ã€æ§˜ã€…ãªã‚ªãƒ—ションを駆使ã™ã‚Œã°ã€ã‚ˆã‚Šè©³ç´°ãªè¨å®šã‚‚å¯èƒ½ã§ã‚る。 ãªãŠã€DVDã‚„Blu-rayã®ã‚ˆã†ã«ãƒ•ã‚©ãƒ«ãƒ€æ§‹é€ ã‚’ã¨ã‚‹ã‚‚ã®ã®å ´åˆã¯ã€x264ã®ãƒãƒ¼ã‚¸ãƒ§ãƒ³ã¯æœ€æ–°ã§ã¯ãªã„ã‚‚ã®ã®ã€HandBrakeを使ã†æ–¹ãŒç°¡å˜ã§ã‚る。→HandBrakeã®è¨å®šã¨ä½¿ã„æ–¹ 目次 ffmpegã®åŸºæœ¬çš„ãªä½¿ã„æ–¹ 動画：ビデオコーデックã®æŒ‡å®š 動画：動画å“質ã®è¨å®š 動画：H.265ã§ã‚¨ãƒ³ã‚³ãƒ¼ãƒ‰ 動画：H.264ã§ã‚¨ãƒ³ã‚³ãƒ¼ãƒ‰ 動画：AV1ã§ã‚¨ãƒ³ã‚³ãƒ¼ãƒ‰ 動画：VP9ã§ã‚¨ãƒ³ã‚³ãƒ¼ãƒ‰ 動画：wmvã§ã‚¨ãƒ³ã‚³ãƒ¼ãƒ‰ 動画：複数ã®é™æ¢ç”»ã‹ã‚‰å‹•ç”»ã‚’作æˆã™ã‚‹ 動画：クãƒãƒƒãƒ”ングã—ã¦ã‚¨ãƒ³ã‚³ãƒ¼ãƒ‰ã™ã‚‹ 動画：回転ã•ã›ã¦ã‚¨ãƒ³ã‚³ãƒ¼ãƒ‰ã™ã‚‹ 動画：w
HLSã«ã¤ã„ã¦çŸ¥ã£ã¦ã„ã‚‹ã“ã¨ã‚’話ã—ã¾ã™
3. HLSã¨ã¯ • HTTP Live Streaming ã®ç•¥ • ã–ã£ãり言ã†ã¨ã€HTTPを使ã£ã¦ä¸€èˆ¬çš„ãªã‚¤ãƒ³ã‚¿ãƒ¼ãƒãƒƒãƒˆãƒ©ã‚¸ã‚ªã¨åŒã˜è¦ é ˜ã§å‹•ç”»ã‚’é…ä¿¡ã™ã‚‹æŠ€è¡“ • 2009å¹´ã«AppleãŒiOS3ã«åˆã‚ã¦æ載ã—ãŸã€‚ • IETF Internet Draft • Androidãªã©ã§ã®ã‚µãƒãƒ¼ãƒˆã‚‚ã‚ã‚Šã€ãƒ¢ãƒã‚¤ãƒ«ãƒ‡ãƒã‚¤ã‚¹ã§ã¯ãƒ‡ãƒ•ã‚¡ã‚¯ãƒˆã® ストリーミング方å¼ã¨ãªã£ã¦ã„ã‚‹ 4. ãŠã£ã•ã‚“ã®ãŸã‚ã®HLSã®æ´å² • 1997å¹´ Winampç™»å ´ • プレイリストã¨ã—ã¦ã® .m3u å½¢å¼ã®èª•ç”Ÿ • 1998å¹´9月 Winamp2 ç™»å ´ • プレイリストã¨ã—ã¦ã® .pls å½¢å¼ãŒç™»å ´ • 1998å¹´ SHOUTcast 誕生 • 動的年末ãªãƒ—レイリスト生æˆã«ã‚ˆã‚‹ç°¡æ˜“ストリーミング 5. ãŠã£ã•ã‚“ã®ãŸã‚ã®HLSã®æ´å² • 1999å¹´ SoundJam MP • MacOS9用㮠mp3 プレイヤー •
Samir Jafferali's Online Nook – High speed ffmpeg cluster encoding with Python and avidemux
By Samir on November 23, 2010 When it comes to clustered video codec conversion there are two general scenarios: Scenario 1: Encoding many videos across many computers Scenario 2: Encoding a single video across computers Scenario 1 is ubiquitous and most encoding clusters are likely running at full steam with a backlog of videos waiting in queue. Scenario 2 is less common and useful with deadlines
ffmpegを応用ã™ã‚‹ã€‚ファイル転é€ã—ãªãŒã‚‰ã€ã‚¨ãƒ³ã‚³ãƒ¼ãƒ‰ - ãれマグã§ï¼
PT2ã§éŒ²ç”»ã—ãŸãƒ‡ãƒ¼ã‚¿ã¯ATOMã§ãªãã€ã‚¯ãƒ©ã‚¦ãƒ‰å´ã§ã‚¨ãƒ³ã‚³ãƒ¼ãƒ‰ã—ãŸã‚‰é€Ÿã„よã。ATOMã§ã‚¨ãƒ³ã‚³ãƒ¼ãƒ‰ã™ã‚‹ã¨ã€æ™‚é–“ãŒã‹ã‹ã‚Šã™ãŽã‚‹ã—ã€é›»æ°—代大変ãªã®ã§ã€‚ サーãƒãƒ¼ã§ã‚¨ãƒ³ã‚³ãƒ¼ãƒ‰ã™ã‚‹ã€‚ cat test.ts | ssh enc_server1 "/usr/local/bin/ffmpeg -i pipe:0 out.mp4 "ã¯ã„ã€æ¥½ãƒãƒ³ã€‚ ã“ã‚Œã§è»¢é€å¾…ã¡æ™‚é–“ãŒã‚¼ãƒã§ã™ã€‚転é€ã—ãªãŒã‚‰åˆ°ç€ã—ãŸå‹•ç”»ã‚’エンコードã™ã‚‹ã®ã§ã™ã€‚ 仕組ã¿ã®è§£èª¬ã€‚ 標準入力をã¤ã‹ã£ãŸã‚¨ãƒ³ã‚³ãƒ¼ãƒ‰ cat test.mpeg | /usr/local/bin/ffmpeg -i pipe:0 out.mp4 ã“ã‚Œã§ã€FFMPEGãŒã€æ¨™æº–入力ã®ãƒ‘ケットをãã®ã¾ã¾ã‚¨ãƒ³ã‚³ãƒ¼ãƒ‰ã—ã¦ã€out.mp4ã«æ›¸ã出ã—ã¾ã™ã€‚ pipe0 :0 ãŒæ¨™æº–入力 pipe1 :1 ãŒæ¨™æº–出力 pipe2 :2 ãŒã‚¨ãƒ©å‡ºåŠ› pipe :- 指定ãªã—ã¯è‡ªå‹•åˆ¤åˆ¥
Reading video frame by frame with ffmpeg | David R. MacIver
So I’ve been playing around with scene detection. It’s really more of a NIH task that I’m doing for my own amusement than it is a serious tool I expect to be used, but it’s a good way to expand my knowledge of video and I have a few good ideas which don’t seem to have been used before, so it’s crazy but it Just Might Work. One of the things I need to do for scene detection is read a video frame by
C# 㨠FFmpeg を使ã£ã¦å‹•ç”»ã®ã‚µãƒ ãƒã‚¤ãƒ«ã‚’生æˆã—ã¦ã¿ãŸ - ã—ã°ã‚„ん雑記
ã¡ã‚‡ã£ã¨å‰ã«ãªã‚Šã¾ã™ãŒ WPF を使ã£ã¦å‹•ç”»ã®ã‚µãƒ ãƒã‚¤ãƒ«ã‚’生æˆã—ã¦ã¿ãŸ - ã—ã°ã‚„ん雑記 ã§æ›¸ã„ãŸé€šã‚Š WPF を使ã£ã¦å‹•ç”»ã®ã‚µãƒ ãƒã‚¤ãƒ«ã‚’自動的ã«ç”Ÿæˆã™ã‚‹ã‚³ãƒ¼ãƒ‰ã‚’書ã„ã¦ã¿ãŸã®ã§ã™ãŒã€ã“れ㌠Azure Web サイト上ã§å‹•ã„ã¦ãã‚Œãªãã¦å›°ã‚Šã¾ã—ãŸã€‚ ã‚„ã¯ã‚Šã‚µãƒ¼ãƒãƒ¼ OS ã¯ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆ OS ã¨ã¯å‹æ‰‹ãŒé•ã£ã¦ãã¾ã™ã。ãªã®ã§ã€ä»Šå›žã¯æœ‰å㪠FFmpeg を使ã£ã¦ã‚µãƒ ãƒã‚¤ãƒ«ã‚’生æˆã—ã¦ã¿ã‚‹ã“ã¨ã«ã—ã¾ã™ã€‚ https://www.ffmpeg.org/download.html FFmpeg ã¯ã‚¯ãƒã‚¹ãƒ—ラットフォームã§ã™ãŒã€Windows 版ã¯ãƒ“ルド済ã¿ãªã‚‚ã®ãŒå…¬å¼ã‚µã‚¤ãƒˆã‹ã‚‰ã¯é…布ã•ã‚Œã¦ã„ãªã„ã®ã§ "Zeranoe FFmpeg Builds." ã¨ã„ã†ã‚‚ã®ã‚’使ã„ã¾ã—ãŸã€‚ Zeranoe FFmpeg - Builds 色んãªç¨®é¡žãŒã‚ã‚Šã¾ã™ãŒã€ä»Šå›žã¯ 32bit 版㮠Static ビルドを使ã„
Nginxã¨FFmpegを利用ã—ãŸHTTP Live Streamingé…ä¿¡ – Rest Term
HTTP Live Streaming(HLS)é…ä¿¡ã®åŸºæœ¬çš„ãªæ‰‹é †ã‚’ã¾ã¨ã‚ã¾ã™ã€‚ 去年ã®è¨˜äº‹ 「Nginxã®HTTP Pseudo-Streamingを試ã™ã€ ã§ã¯Nginxã®ç–‘似ストリーミングé…信モジュールを試ã—ã¦ã¿ã¾ã—ãŸãŒã€æ©Ÿèƒ½ä¸è¶³ã®ãŸã‚実サービスã§ä½¿ã†ã®ã¯é›£ã—ã„ã§ã™ã€‚ãã®ãŸã‚Webサーãƒã§ã‚¹ãƒˆãƒªãƒ¼ãƒŸãƒ³ã‚°é…ä¿¡ã‚’è¡Œã„ãŸã„å ´åˆã¯ä»Šå›žç´¹ä»‹ã™ã‚‹HLSãªã©ã®åˆ©ç”¨ãŒæŽ¨å¥¨ã•ã‚Œã¾ã™ã€‚ HTTP Live Streaming(HLS)ã¨ã¯ Appleå…¬å¼ã®ãƒ‰ã‚ュメントをèªã‚€æ–¹ãŒç†è§£ã¯é€²ã‚€ã¨æ€ã„ã¾ã™ãŒã€ä¸€å¿œã“ã“ã§ã‚‚ç°¡å˜ã«æ¦‚è¦ã‚’。 HTTP Live Streaming (also known as HLS) is an HTTP-based media streaming communications protocol implemented by Apple Inc. HTTP Live Streami
%2520media%2520files)
How to concatenate (join, merge) media files – FFmpeg
Powered by Trac 1.4.2 By Edgewall Software . Visit the Trac open source project at http://trac.edgewall.org/
Ffmpegã«ã¤ã„㦠- Asterisk Works Wiki
File formats: Position 1: D = decoding Position 2: E = encoding Codecs: Position 1: D = decoding Position 2: E = encoding Position 3: V = video codec -or- A = audio codec -or- S = subtitle codec Position 4: S = draws horizontal band (can use the draw_horiz_band callback) Position 5: D = uses direct rendering method 1 (DR1) Position 6: T = truncated (input bitstream might be truncated at a random l
1
リリースã€éšœå®³æƒ…å ±ãªã©ã®ã‚µãƒ¼ãƒ“スã®ãŠçŸ¥ã‚‰ã›
最新ã®äººæ°—エントリーã®é…ä¿¡
j次ã®ãƒ–ックマーク
kå‰ã®ãƒ–ックマーク
lã‚ã¨ã§èªã‚€
eコメント一覧を開ã
oページを開ã
FFmpeg Codecs Documentation
ffmpeg: which file formats support stdin usage?
https://notes.improvisedscience.org/wiki/Video/Audio_Streaming_via_ffmpeg_over_ssh
GitHub - hudl/HudlFfmpeg: Hudl.Ffmpeg framework
FFmpeg Howto)
http://blog.suz-lab.com/2010/03/ffmpegcommandworkermanager.html?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+suz-lab-blog+%28suz-lab+-+blog%29
ffmpeg usage - MobileHackerz Knowledgebase Wiki
{{#tags}}- {{label}}
{{/tags}}