環境
素材
- sony_xavcs_30p.MP4
- 1920 × 1080 29.97fps
- 50Mbps
- Sony RX100M4 X-AVCS
- 2865F
- 1分36秒
- canon_uhd.MP4
- gh5_422_uhd.MP4
- 3840x2160 29.97fps
- 150Mbps
- LUMIX GH5
- 525F
- 17秒
FFmpegはバージョン4.4.1を使用します。
Input |
Codec |
FPS |
sony_xavcs_30p.MP4 |
libx264 |
88 |
↑ |
h264_videotoolbox |
61 |
↑ |
libx265 |
9.01 |
↑ |
hevc_videotoolbox |
57 |
↑ |
vp9 |
6.7 |
canon_uhd.MP4 |
libx264 |
30 |
↑ |
h264_videotoolbox |
51 |
↑ |
libx265 |
2.71 |
↑ |
hevc_videotoolbox |
15 |
↑ |
vp9 |
5.6 |
gh5_422_uhd.MP4 |
libx264 |
14 |
↑ |
h264_videotoolbox |
16 |
↑ |
libx265 |
3.26 |
↑ |
hevc_videotoolbox |
15 |
↑ |
vp9 |
3.5 |
ffmpeg -y -i sony_xavcs_30p.MP4 -c:v libx264 -b:v 5000k fhd2fhd_x264_1.mp4
ffmpeg -y -i sony_xavcs_30p.MP4 -c:v h264_videotoolbox -b:v 5000k fhd2fhd_toolbox_h264_1.mp4
ffmpeg -y -i sony_xavcs_30p.MP4 -c:v libx265 -b:v 5000k fhd2fhd_x265_1.mp4
ffmpeg -y -i sony_xavcs_30p.MP4 -c:v hevc_videotoolbox -b:v 5000k fhd2fhd_toolbox_h265_1.mp4
ffmpeg -y -i sony_xavcs_30p.MP4 -c:v vp9 -b:v 5000k fhd2fhd_vp9_1.mp4
ffmpeg -y -i canon_uhd.MP4 -c:v libx264 -b:v 5000k uhd2fhd_x264_1.mp4
ffmpeg -y -i canon_uhd.MP4 -c:v h264_videotoolbox -b:v 5000k uhd2fhd_toolbox_h264_1.mp4
ffmpeg -y -i canon_uhd.MP4 -c:v libx265 -b:v 5000k uhd2fhd_h265_1.mp4
ffmpeg -y -i canon_uhd.MP4 -c:v hevc_videotoolbox -b:v 5000k uhd2fhd_toolbox_h265_1.mp4
ffmpeg -y -i canon_uhd.MP4 -c:v vp9 -b:v 5000k uhd2fhd_vp9_1.mp4
ffmpeg -y -i gh5_422_uhd.MP4 -c:v libx264 -b:v 5000k -pix_fmt yuv420p uhd422_to_fhd_x264_1.mp4
ffmpeg -y -i gh5_422_uhd.MP4 -c:v h264_videotoolbox -b:v 5000k -pix_fmt yuv420p uhd422_to_fhd_toolbox_h264_1.mp4
ffmpeg -y -i gh5_422_uhd.MP4 -c:v libx265 -b:v 5000k -pix_fmt yuv420p uhd422_to_fhd_h265_1.mp4
ffmpeg -y -i gh5_422_uhd.MP4 -c:v hevc_videotoolbox -b:v 5000k -pix_fmt yuv420p uhd422_to_fhd_toolbox_h265_1.mp4
ffmpeg -y -i gh5_422_uhd.MP4 -c:v vp9 -b:v 5000k -pix_fmt yuv420p uhd422_to_fhd_vp9_1.mp4
Adobe Media Encoder編
Input |
Codec |
Min:Sec |
FPS |
sony_xavcs_30p.MP4 |
H.264 |
0:15 |
191 |
↑ |
HEVC(H.265) |
0:17 |
168 |
canon_uhd.MP4 |
H.264 |
0:27 |
52 |
↑ |
HEVC(H.265) |
0:30 |
47 |
gh5_422_uhd.MP4 |
H.264 |
0:10 |
52 |
↑ |
HEVC(H.265) |
0:11 |
47 |