67 lines
933 B
Markdown
67 lines
933 B
Markdown
# FFMPEG
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## Slow down a gif
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```bash
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ffmpeg \
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-r 100 \
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-i "solid-snake-mgs.gif" \
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-vf " minterpolate=50,split[g][p]; [p]palettegen[p]; [g][p]paletteuse" out.gif
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```
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## Combine images into a gif
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```bash
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ffmpeg \
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-f image2 \
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-framerate 3 \
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-i frame_%d.jpeg video.gif
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```
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## Compression
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```bash
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ffmpeg \
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-hwaccel vaapi \
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-vaapi_device /dev/dri/renderD128 \
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-hwaccel_output_format vaapi \
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-i input.mp4 \
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-c:v hevc_vaapi \
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-rc_mode 1 \
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-qp 25 \
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output.mp4
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ffmpeg \
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-hwaccel vaapi \
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-vaapi_device /dev/dri/renderD128 \
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-hwaccel_output_format vaapi \
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-i input.mp4 \
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-c:v h264_vaapi \
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-b:v 0 \
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-maxrate 10M \
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output.mp4
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```
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## DVD Ripping
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```bash
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# Concat the vob
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ffmpeg \
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-safe 0 \
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-f d \
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-i mylist.txt \
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-c copy \
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~/Downloads/ep1.vob
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# Convert the vob
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ffmpeg \
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-i /run/media/ducoterra/DINOTOPIA_DISC_1/VIDEO_TS/VTS_01_1.VOB \
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-vf yadif \
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-c:v libx264 \
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-preset slow \
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-crf 19 \
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-c:a aac \
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-b:a 256k \
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~/Downloads/VTS_01_1.mp4
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```
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