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--- ffmpeg:encoding:cpu_encoding [2025/02/17 12:00] – created peter
+++ ffmpeg:encoding:cpu_encoding [2025/02/17 12:14] (current) – peter
@@ Line 1: / Line 1: @@
 ====== ffmpeg - Encoding - CPU Encoding ======
+Convert the video to HEVC while keeping the auto track and everything else the same.
+<code bash>
+ffmpeg -i input.mp4 -c:v libx265 -c:a copy -preset slow output.mp4
+</code>
+<WRAP info>
+**NOTE:**
+  * This uses the **libx265 encoder** to encode the video into the HEVC format.
+  * This will copy the audio track without re-encoding it.
+  * The **-preset slow** option will produce the highest quality output, but it will take longer to process.
+</WRAP>
+----
+<code bash>
+ffmpeg -i input.mp4 -c:v hevc -crf 23 -preset slow output.mp4
+</code>
+<WRAP info>
+**NOTE:**
+  * This will use a constant rate factor (CRF) of 23 (medium quality).
+</WRAP>
+----
+===== Adding Subtitles =====
+<code bash>
+ffmpeg -i input.mp4 -vf "subtitles=subtitle.srt:force_style='Fontsize=24'" -c:v hevc -crf 23 output.mp4
+</code>
+<WRAP info>
+**NOTE:**
+  * **-vf**: the video filter chain for applying filters to the video, including subtitle rendering.
+  * This includes subtitles from the **subtitle.srt** file with a Fontsize of 24.
+</WRAP>