vault backup: 2024-01-01 17:04:38

.obsidian/workspace.json

@@ -41,14 +41,24 @@
             "state": {
               "type": "markdown",
               "state": {
-                "file": "04. Programming/FFMPEG/AV_CODEC_FLAG_GLOBAL_HEADER.md",
+                "file": "04. Programming/FFMPEG/ffmpeg command.md",
                 "mode": "source",
                 "source": true
               }
             }
+          },
+          {
+            "id": "b7b6a79d599d9529",
+            "type": "leaf",
+            "state": {
+              "type": "release-notes",
+              "state": {
+                "currentVersion": "1.5.3"
+              }
+            }
           }
         ],
-        "currentTab": 2
+        "currentTab": 3
       }
     ],
     "direction": "vertical"
@@ -114,7 +124,7 @@
             "state": {
               "type": "backlink",
               "state": {
-                "file": "04. Programming/FFMPEG/AV_CODEC_FLAG_GLOBAL_HEADER.md",
+                "file": "04. Programming/FFMPEG/ffmpeg command.md",
                 "collapseAll": false,
                 "extraContext": false,
                 "sortOrder": "alphabetical",
@@ -139,7 +149,7 @@
             "state": {
               "type": "outline",
               "state": {
-                "file": "04. Programming/FFMPEG/AV_CODEC_FLAG_GLOBAL_HEADER.md"
+                "file": "04. Programming/FFMPEG/ffmpeg command.md"
               }
             }
           },
@@ -157,7 +167,9 @@
             "state": {
               "type": "all-properties",
               "state": {
-                "sortOrder": "frequency"
+                "sortOrder": "frequency",
+                "showSearch": false,
+                "searchQuery": ""
               }
             }
           },
@@ -167,7 +179,7 @@
             "state": {
               "type": "file-properties",
               "state": {
-                "file": "04. Programming/FFMPEG/AV_CODEC_FLAG_GLOBAL_HEADER.md"
+                "file": "04. Programming/FFMPEG/ffmpeg command.md"
               }
             }
           }
@@ -210,22 +222,23 @@
       "periodic-notes:Open today": false
     }
   },
-  "active": "d5379d7d99bdf586",
+  "active": "b7b6a79d599d9529",
   "lastOpenFiles": [
+    "04. Programming/FFMPEG/00. Introduction.md",
+    "04. Programming/FFMPEG/ffmpeg command.md",
+    "04. Programming/FFMPEG/01. Setup.md",
+    "04. Programming/FFMPEG/AV_CODEC_FLAG_GLOBAL_HEADER.md",
     "04. Programming/FFMPEG/Profiles & levels.md",
     "04. Programming/FFMPEG/av_opt_set.md",
     "04. Programming/FFMPEG/Use av_opt_set to setup profile.md",
     "attachments/Pasted image 20231225164717.png",
     "attachments/Pasted image 20231225164413.png",
     "attachments/Pasted image 20231225164349.png",
-    "04. Programming/FFMPEG/AV_CODEC_FLAG_GLOBAL_HEADER.md",
     "04. Programming/FFMPEG/FFMpeg.md",
     "01. 個人/01. Daily/2023-12-22(週五).md",
     "01. 個人/01. Daily/2023-12-18(週一).md",
     "04. Programming/FFMPEG/Structure.md",
     "attachments/Pasted image 20231220095827.png",
-    "04. Programming/FFMPEG/01. Setup.md",
-    "04. Programming/FFMPEG/00. Introduction.md",
     "05. 資料收集/Tool Setup/Software/Windows 11 Setup.md",
     "05. 資料收集/Tool Setup/Software/Windows 10 Setup.md",
     "04. Programming/OpenCV.md",
@@ -244,7 +257,6 @@
     "00. Inbox/Mel spectrogram.md",
     "attachments/Pasted image 20231212180917.png",
     "05. 資料收集/libsndfile.md",
-    "00. Inbox/SSIM.md",
     "未命名 1.canvas",
     "未命名.canvas",
     "01. 個人/01. Daily/2023/11",

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>
+```