From b3be2ac3976ee76be2d87b196b8a66f33ef79b59 Mon Sep 17 00:00:00 2001
From: Awin Huang <awinhuang@gmail.com>
Date: Mon, 1 Jan 2024 17:04:38 +0800
Subject: [PATCH] vault backup: 2024-01-01 17:04:38

---
 .obsidian/workspace.json                 | 34 ++++++++++++------
 04. Programming/FFMPEG/ffmpeg command.md | 45 ++++++++++++++++++++++++
 2 files changed, 68 insertions(+), 11 deletions(-)
 create mode 100644 04. Programming/FFMPEG/ffmpeg command.md

diff --git a/.obsidian/workspace.json b/.obsidian/workspace.json
index e3ca84e..c05362e 100644
--- a/.obsidian/workspace.json
+++ b/.obsidian/workspace.json
@@ -41,14 +41,24 @@
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@@ -139,7 +149,7 @@
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@@ -157,7 +167,9 @@
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@@ -167,7 +179,7 @@
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-                "file": "04. Programming/FFMPEG/AV_CODEC_FLAG_GLOBAL_HEADER.md"
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@@ -210,22 +222,23 @@
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+    "04. Programming/FFMPEG/ffmpeg command.md",
+    "04. Programming/FFMPEG/01. Setup.md",
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     "04. Programming/FFMPEG/Profiles & levels.md",
     "04. Programming/FFMPEG/av_opt_set.md",
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diff --git a/04. Programming/FFMPEG/ffmpeg command.md b/04. Programming/FFMPEG/ffmpeg command.md
new file mode 100644
index 0000000..638f17a
--- /dev/null
+++ b/04. Programming/FFMPEG/ffmpeg command.md	
@@ -0,0 +1,45 @@
+## 列出 hardware acceleration
+```bash
+$ ffmpeg -hide_banner -hwaccels
+Hardware acceleration methods:
+cuda
+dxva2
+qsv
+d3d11va
+opencl
+vulkan
+```
+
+## 列出 codec
+```bash
+$ ffmpeg -hide_banner -codecs
+Codecs:
+ D..... = Decoding supported
+ .E.... = Encoding supported
+ ..V... = Video codec
+ ..A... = Audio codec
+ ..S... = Subtitle codec
+ ...I.. = Intra frame-only codec
+ ....L. = Lossy compression
+ .....S = Lossless compression
+ -------
+ D.VI.S 012v                 Uncompressed 4:2:2 10-bit
+ D.V.L. 4xm                  4X Movie
+ D.VI.S 8bps                 QuickTime 8BPS video
+ .EVIL. a64_multi            Multicolor charset for Commodore 64 (encoders: a64multi )
+ .EVIL. a64_multi5           Multicolor charset for Commodore 64, extended with 5th color (colram) (encoders: a64multi5 )
+ D.V..S aasc                 Autodesk RLE
+```
+
+### 只列出 encoder 或是 decoder
+```bash
+ffmpeg -hide_banner -encoders
+ffmpeg -hide_banner -decoders
+```
+
+### 列出某個 encoder 或 decoder 的詳細資料
+```bash
+$ ffmpeg -hide_banner -h encoder=<codec_name>
+or
+$ ffmpeg -hide_banner -h decoder=<codec_name>
+```
\ No newline at end of file