Différences

Ci-dessous, les différences entre deux révisions de la page.

--- encotest:vp9-opus [2014-07-09 09:42] – créée mitsu
+++ encotest:vp9-opus [2017-03-22 22:42] (Version actuelle) – mitsu
@@ Ligne 1: / Ligne 1: @@
+====== Aim & Conclusion ======
+Test experimental support of MKV/WebM container mixing in-development video format VP9 and audio format Opus. As of today this is the best video-audio combo with royalty-free web formats with better quality/weight ratio than "classical" VP8-Vorbis.
+Major browsers and players support both VP9 and Opus, but separately: Standalone Opus audio (MIME audio/opus) is well supported. WebM container is implying VP8+Vorbis or VP9-Vorbis, putting another audio format (WAV, FLAC, Speex, Opus) is unexpected. video/mkv isn't a recognized MIME by browsers.
+I hope for a consensus about extending WebM format specs to VP9+Opus and push support for browsers, making it an efficient H.264+AAC killer before fighting the emerging H.265+HE-AAC.
+====== Encoding ======
 source: Quantum Ripples (AMV by Nostromo)
-Encoding: <code>ffmpeg -i "Nostromo_-_Quantum_Ripples_720p@60_10b.mp4" -c:v libvpx-vp9 -c:a libopus -deadline best -crf 24 -b:v 300k -b:a 40k -threads 4 -y -ss 00:01:55.000 -t 13 "out.mkv"</code>
+<code>ffmpeg -i "Nostromo_-_Quantum_Ripples_720p@60_10b.mp4" -c:v libvpx-vp9 -c:a libopus -deadline best -crf 24 -b:v 300k -b:a 40k -threads 4 -y -ss 00:01:55.000 -t 13 "out.mkv"</code>
   * original filesize: 168 MB
-  * estimated filesize after encoding: ~80 MB
+  * estimated filesize after full encoding: ~80 MB
 ====== Browser/player support ======
-VLC 2.1.4:
+VLC 2.1.5:
-  - video/webm
+  - <html><span style="color:green">video/webm</span></html>
-  - VP9
+  - <html><span style="color:green">VP9</span></html>
-  - Opus
+  - <html><span style="color:green">Opus</span></html>
-  - WebM [VP9+Opus]
+  - <html><span style="color:red">MKV-fakeWebM [VP9+Opus]</span></html>
+  - <html><span style="color:blue">can play (no sound: "audio undef")</span></html>
+SMPlayer 14.9.0:
+  - <html><span style="color:green">video/webm</span></html>
+  - <html><span style="color:green">VP9</span></html>
+  - <html><span style="color:green">Opus</span></html>
+  - <html><span style="color:green">MKV-fakeWebM [VP9+Opus]</span></html>
+  - <html><span style="color:green">can play</span></html>
 Firefox 30:
+  - <html><span style="color:green">video/webm</span></html>
+  - <html><span style="color:green">VP9</span></html>
+  - <html><span style="color:green">Opus</span></html>
+  - <html><span style="color:red">MKV-fakeWebM [VP9+Opus]</span></html>
+  - <html><span style="color:red">WebM-Opus MIME incompatible</span></html>
 Chromium 35:
+  - <html><span style="color:green">video/webm</span></html>
+  - <html><span style="color:green">VP9</span></html>
+  - <html><span style="color:green">Opus</span></html>
+  - <html><span style="color:green">MKV-fakeWebM [VP9+Opus]</span></html>
+  - <html><span style="color:green">can play</span></html>
 Opera 12.16:
-  - video/webm
+  - <html><span style="color:green">video/webm</span></html>
-  - VP9
+  - <html><span style="color:red">VP9</span></html>
-  - Opus
+  - <html><span style="color:green">Opus</span></html>
-  - WebM [VP9+Opus]
+  - <html><span style="color:red">MKV-fakeWebM [VP9+Opus]</span></html>
+  - <html><span style="color:red">no VP9 support; WebM-Opus MIME incompatible</span></html>
+[[https://suumitsu.eu/wiki/upload/test2-quantum-ripples-vp9-opus.mkv|Direct link]]
+~~ BEGIN HTML5 PLAYER ~~
+<html>
+	<video controls="">
+	<source src="./upload/test2-quantum-ripples-vp9-opus.mkv" type='video/webm; codecs="vp9, opus"'>
+	</video>
+</html>
+~~ EOF ~~