Differences

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--- ffmpeg:encoding:gpu_encoding [2024/11/15 09:28] – peter
+++ ffmpeg:encoding:gpu_encoding [2025/02/17 15:23] (current) – peter
@@ Line 1: / Line 1: @@
 ====== ffmpeg - Encoding - GPU Encoding ======
+[[ffmpeg:Encoding:GPU Encoding:Convert videos to 10-bit h265, AAC 5.1|Convert videos to 10-bit h265, AAC 5.1]]
+----
+<code bash>
+ffmpeg -i "input.mkv" -vaapi_device /dev/dri/renderD128 -vf 'format=p010,hwupload' -map 0:v -metadata:s:v:0 language=eng -map 0:a:m:language:eng -metadata:s:a:0 language=eng -map 0:s\? -c:v hevc_vaapi -b:v 3000k -bufsize 3000k -c:a aac -ac 6 -ar 48000 -b:a 640k -c:s srt -profile:v main10 -rc_mode CBR -v verbose "output.mkv"
+</code>
+----
 ===== Convert videos to H.265 / HEVC using ffmpeg and GPU hardware encoding =====
@@ Line 7: / Line 18: @@
 ffmpeg -i "input.mkv" -vaapi_device /dev/dri/renderD128 -vf 'format=nv12,hwupload,scale_vaapi=w=1920:h=1080' -map 0:v -metadata:s:v:0 language=eng -map 0:a:m:language:eng? -metadata:s:a:0 language=eng -map 0:s? -metadata:s:s:0 language=eng -profile:v main -c:v hevc_vaapi -c:a copy -c:s copy -rc_mode CQP -global_quality 25 -v verbose "output.mkv"
+# This is hardware decoding and software encoding.
+ffmpeg -hwaccel vaapi -hwaccel_device /dev/dri/renderD128 -hwaccel_output_format vaapi -i "input.mkv" -vf 'deinterlace_vaapi=rate=field:auto=1,scale_vaapi=w=1920:h=1080,hwdownload,format=nv12' -map 0:v -metadata:s:v:0 language=eng -map 0:a -metadata:s:a:0 language=eng -map 0:s? -profile:v main -c:v libx265 -c:a copy -c:s copy -rc_mode CQP -global_quality 25 -v verbose output.mkv
 </code>
@@ Line 42: / Line 57: @@
     * The **hwupload** filter also requires a device to upload to, which needs to be defined before the filter graph is created which is done with **-vaapi_device**.
     * The **scale_vaapi=w=1920:h=1080** scales the video to 1080p.
-    * Use **-vf 'format=nv12,hwupload'** to not do any scaling.
+    * Use **-vf 'format=nv12,hwupload'** to not do any scaling, and to use NV12 (8-bit encoding).
-    * Use **-vf 'format=p010,hwupload'** to for 10-bit encoding; and also change the profile to **Main10**.
+    * Use **-vf 'format=p010,hwupload'** for 10-bit encoding; and also change the profile to **Main10**.
       * See further below for other pixel formats..
   * **-map 0:v** selects the Video streams from the inputs which will go into the output.