ffmpeg:video_bit_rate
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| ffmpeg:video_bit_rate [2024/09/15 09:20] – peter | ffmpeg:video_bit_rate [2025/01/12 13:34] (current) – removed peter | ||
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| - | ====== ffmpeg - Video bit rate ====== | ||
| - | |||
| - | ===== Get the bitrate of a video ===== | ||
| - | |||
| - | <code bash> | ||
| - | ffprobe " | ||
| - | </ | ||
| - | |||
| - | returns: | ||
| - | |||
| - | < | ||
| - | Duration: 00: | ||
| - | Stream #0:0(eng): Video: av1 (Main), yuv420p(tv, bt709/ | ||
| - | </ | ||
| - | |||
| - | ---- | ||
| - | |||
| - | To keep the same image details use the following formula to calculate the output video bit rate: | ||
| - | |||
| - | < | ||
| - | -b:v value = input_file_size_KB / duration_sec / 100 | ||
| - | </ | ||
| - | |||
| - | ---- | ||
| - | |||
| - | ===== Example ===== | ||
| - | |||
| - | < | ||
| - | 460520KB / 120sec / 100 = 38.37 | ||
| - | </ | ||
| - | |||
| - | result: | ||
| - | |||
| - | < | ||
| - | -b:v 38M | ||
| - | </ | ||
| - | |||
| - | ---- | ||
| - | |||
ffmpeg/video_bit_rate.1726392058.txt.gz · Last modified: 2024/09/15 09:20 by peter