成品大概250MB
ffmpeg -i input.mp4 -vf "transpose=2" -c:v hevc_nvenc -preset p4 out.mp4
4.6GB 生成 大概2.1GB
ffmpeg -i input.mp4 -vf "transpose=2" -c:v hevc_nvenc -preset p7 -cq 18 -rc vbr -b:v 0 -c:a copy out.mp4
ffmpeg -i input.mp4 -vf "transpose=2" -c:v hevc_nvenc -preset p7 -cq 15 -rc vbr -b:v 0 -c:a copy out.mp4
【未经过测试】
ffmpeg -i input.mp4 -vf "transpose=2" -c:v hevc_nvenc -preset p4 -b:v 100M -maxrate 120M -bufsize 200M -c:a copy out.mp4
20260416使用ffmpeg将8K分辨率的mp4格式的竖屏视频旋转为横屏
2026/4/16 23:22
缘起：去 越南 旅游的视频，失误搞成竖屏了！现在需要还原为横屏，音频就不需要东了。
问DeepSeek：
逆时针旋转90度：ffmpeg -i test.mp4 -vf "transpose=2" out.mp4//逆时针旋转90°
加入NVIDIA显卡的硬件编解码
视频编码HEVC
可以转换，但是视频码率从 112Mbps变成不到6Mbps，视频质量下降严重
参数从18 修改为15之后，生成的体积还是2GB？请问是啥原因？
视频逆时针旋转90度，音频直接拷贝 ，不要转换！
或者直接指定 -b:v 100M 强制高码率
请给出来完整的命令
Microsoft Windows [版本 10.0.19045.6466]
(c) Microsoft Corporation。保留所有权利。
C:\Users\QQQ>cd F:\20260331的Xiaomi13Ultra\25
C:\Users\QQQ>f:
F:\20260331的Xiaomi13Ultra\25>dir
驱动器 F 中的卷是 3TB
卷的序列号是 921B-C0F3
F:\20260331的Xiaomi13Ultra\25 的目录
2026/04/16 21:12 <DIR> .
2026/04/16 21:12 <DIR> ..
2026/04/16 00:48 256,252,614 1out很模糊.mp4
2026/04/16 00:00 7,807 4月15日 (16).srt
2026/04/16 00:02 7,569 captions.srt
2026/03/25 14:53 4,740,631,220 input.mp4
2026/04/15 21:05 1,906 mp4.txt
2026/04/15 21:06 961 mp4a.txt
2026/04/15 23:58 584 mp4a1.txt
2026/04/15 23:58 584 mp4a2.txt
2026/04/16 01:24 2,177,366,466 out1.mp4
2026/04/15 23:58 <DIR> srt
2026/04/16 00:10 46,399,536 VID_20260325_134746_8K越南顺化皇城.mp4.out1.mp4
2026/03/25 14:59 4,744,275,821 VID_20260325_135348_8K越南顺化皇城.mp4
2026/03/25 15:06 4,743,675,557 VID_20260325_140012_8K越南顺化皇城.mp4
2026/03/25 15:09 2,453,427,135 VID_20260325_140628_8K越南顺化皇城.mp4
2026/03/25 15:28 4,743,216,186 VID_20260325_142253_8K越南顺化皇城.mp4
2026/03/25 15:32 2,900,819,873 VID_20260325_142907_8K越南顺化皇城.mp4
2026/03/25 15:34 808,757,652 VID_20260325_143325_8K越南顺化皇城.mp4
2026/03/25 15:35 770,220,806 VID_20260325_143441_8K越南顺化皇城.mp4
2026/03/25 16:05 3,771,187,799 VID_20260325_150503顺化越南特色三轮车-半小时标价160￥.mp4
2026/03/25 16:15 3,770,453,836 VID_20260325_151513顺化越南特色三轮车-半小时标价160￥.mp4
2026/03/25 16:20 1,972,236,159 VID_20260325_152033顺化越南特色三轮车-半小时标价160￥.mp4
2026/03/26 08:47 118,789,028 VID_20260326_074752顺化越南特色三轮车-半小时标价160￥.mp4
21 个文件 38,017,729,099 字节
3 个目录 85,188,542,464 可用字节
F:\20260331的Xiaomi13Ultra\25>ffmpeg -i input.mp4 -vf "transpose=2" -c:v hevc_nvenc -preset p7 -cq 18 -rc vbr -b:v 0 -c:a copy out.mp4
ffmpeg version 2025-01-22-git-e20ee9f9ae-essentials_build-www.gyan.dev Copyright (c) 2000-2025 the FFmpeg developers
built with gcc 14.2.0 (Rev1, Built by MSYS2 project)
configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-zlib --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-sdl2 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass --enable-libfreetype --enable-libfribidi --enable-libharfbuzz --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-dxva2 --enable-d3d11va --enable-d3d12va --enable-ffnvcodec --enable-libvpl --enable-nvdec --enable-nvenc --enable-vaapi --enable-libgme --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libtheora --enable-libvo-amrwbenc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-librubberband
libavutil 59. 55.100 / 59. 55.100
libavcodec 61. 31.101 / 61. 31.101
libavformat 61. 9.106 / 61. 9.106
libavdevice 61. 4.100 / 61. 4.100
libavfilter 10. 6.101 / 10. 6.101
libswscale 8. 13.100 / 8. 13.100
libswresample 5. 4.100 / 5. 4.100
libpostproc 58. 4.100 / 58. 4.100
mov,mp4,m4a,3gp,3g2,mj2 @ 00000211fe7e1c80\] Skipping unhandled metadata com.video.file.type of type 67 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'input.mp4': Metadata: major_brand : mp42 minor_version : 0 compatible_brands: isommp42 creation_time : 2026-03-25T06:53:47.000000Z com.android.version: 14 com.android.manufacturer: Xiaomi com.android.model: 2304FPN6DC com.xiaomi.product.marketname: Xiaomi 13 Ultra com.android.capture.fps: 24.000000 com.xiaomi.real_8k: 1 com.xiaomi.preview_video_cover: 1 xiaomi.exifInfo.videoinfo: N:1 D:ishtar V:V816.0.6.0.UMACNXM T:40282 M:32797 S:ishtar_semco_imx989_wide F:2016000,2707200,2956800 B:64 G:6800000,6800000,2200000, psi10:0.420000,19.959999,1.350000, ME:11466004,414440,6033700,5205980, SM:8 TM:0,0,42,0,0, E:634483,625174,351297,378240 Duration: 00:06:00.02, start: 0.000000, bitrate: 105341 kb/s Stream #0:0\[0x1\](eng): Video: hevc (Main) (hvc1 / 0x31637668), yuv420p(tv, bt709), 7680x4320, 105021 kb/s, 24 fps, 24 tbr, 90k tbn (default) Metadata: creation_time : 2026-03-25T06:53:47.000000Z handler_name : VideoHandle vendor_id : \[0\]\[0\]\[0\]\[0
Side data:
displaymatrix: rotation of -90.00 degrees
Stream #0:1[0x2](eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 319 kb/s (default)
Metadata:
creation_time : 2026-03-25T06:53:47.000000Z
handler_name : SoundHandle
vendor_id : [0][0][0][0]
Stream mapping:
Stream #0:0 -> #0:0 (hevc (native) -> hevc (hevc_nvenc))
Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
Output #0, mp4, to 'out.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
xiaomi.exifInfo.videoinfo: N:1 D:ishtar V:V816.0.6.0.UMACNXM T:40282 M:32797 S:ishtar_semco_imx989_wide F:2016000,2707200,2956800 B:64 G:6800000,6800000,2200000, psi10:0.420000,19.959999,1.350000, ME:11466004,414440,6033700,5205980, SM:8 TM:0,0,42,0,0, E:634483,625174,351297,378240
com.android.version: 14
com.android.manufacturer: Xiaomi
com.android.model: 2304FPN6DC
com.xiaomi.product.marketname: Xiaomi 13 Ultra
com.android.capture.fps: 24.000000
com.xiaomi.real_8k: 1
com.xiaomi.preview_video_cover: 1
encoder : Lavf61.9.106
Stream #0:0(eng): Video: hevc (Main) (hev1 / 0x31766568), yuv420p(tv, bt709, progressive), 7680x4320, q=2-31, 24 fps, 12288 tbn (default)
Metadata:
encoder : Lavc61.31.101 hevc_nvenc
creation_time : 2026-03-25T06:53:47.000000Z
handler_name : VideoHandle
vendor_id : [0][0][0][0]
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 319 kb/s (default)
Metadata:
creation_time : 2026-03-25T06:53:47.000000Z
handler_name : SoundHandle
vendor_id : [0][0][0][0]
vost#0:0/hevc_nvenc @ 00000211fef36c80\] Error submitting a packet to the muxer: Immediate exit requested Last message repeated 1 times \[out#0/mp4 @ 00000211fe7f3040\] Error muxing a packet \[out#0/mp4 @ 00000211fe7f3040\] Task finished with error code: -1414092869 (Immediate exit requested) \[out#0/mp4 @ 00000211fe7f3040\] Terminating thread with return code -1414092869 (Immediate exit requested) Received \> 3 system signals, hard exiting F:\\20260331的Xiaomi13Ultra\\25\> F:\\20260331的Xiaomi13Ultra\\25\> F:\\20260331的Xiaomi13Ultra\\25\> F:\\20260331的Xiaomi13Ultra\\25\> F:\\20260331的Xiaomi13Ultra\\25\>ffmpeg -i input.mp4 -vf "transpose=2" -c:v hevc_nvenc -preset p7 -cq 15 -rc vbr -b:v 0 -c:a copy out.mp4 ffmpeg version 2025-01-22-git-e20ee9f9ae-essentials_build-www.gyan.dev Copyright (c) 2000-2025 the FFmpeg developers built with gcc 14.2.0 (Rev1, Built by MSYS2 project) configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-zlib --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-sdl2 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass --enable-libfreetype --enable-libfribidi --enable-libharfbuzz --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-dxva2 --enable-d3d11va --enable-d3d12va --enable-ffnvcodec --enable-libvpl --enable-nvdec --enable-nvenc --enable-vaapi --enable-libgme --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libtheora --enable-libvo-amrwbenc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-librubberband libavutil 59. 55.100 / 59. 55.100 libavcodec 61. 31.101 / 61. 31.101 libavformat 61. 9.106 / 61. 9.106 libavdevice 61. 4.100 / 61. 4.100 libavfilter 10. 6.101 / 10. 6.101 libswscale 8. 13.100 / 8. 13.100 libswresample 5. 4.100 / 5. 4.100 libpostproc 58. 4.100 / 58. 4.100 \[mov,mp4,m4a,3gp,3g2,mj2 @ 0000019fbafb1cc0\] Skipping unhandled metadata com.video.file.type of type 67 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'input.mp4': Metadata: major_brand : mp42 minor_version : 0 compatible_brands: isommp42 creation_time : 2026-03-25T06:53:47.000000Z com.android.version: 14 com.android.manufacturer: Xiaomi com.android.model: 2304FPN6DC com.xiaomi.product.marketname: Xiaomi 13 Ultra com.android.capture.fps: 24.000000 com.xiaomi.real_8k: 1 com.xiaomi.preview_video_cover: 1 xiaomi.exifInfo.videoinfo: N:1 D:ishtar V:V816.0.6.0.UMACNXM T:40282 M:32797 S:ishtar_semco_imx989_wide F:2016000,2707200,2956800 B:64 G:6800000,6800000,2200000, psi10:0.420000,19.959999,1.350000, ME:11466004,414440,6033700,5205980, SM:8 TM:0,0,42,0,0, E:634483,625174,351297,378240 Duration: 00:06:00.02, start: 0.000000, bitrate: 105341 kb/s Stream #0:0\[0x1\](eng): Video: hevc (Main) (hvc1 / 0x31637668), yuv420p(tv, bt709), 7680x4320, 105021 kb/s, 24 fps, 24 tbr, 90k tbn (default) Metadata: creation_time : 2026-03-25T06:53:47.000000Z handler_name : VideoHandle vendor_id : \[0\]\[0\]\[0\]\[0
Side data:
displaymatrix: rotation of -90.00 degrees
Stream #0:1[0x2](eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 319 kb/s (default)
Metadata:
creation_time : 2026-03-25T06:53:47.000000Z
handler_name : SoundHandle
vendor_id : [0][0][0][0]
Stream mapping:
Stream #0:0 -> #0:0 (hevc (native) -> hevc (hevc_nvenc))
Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
Output #0, mp4, to 'out.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
xiaomi.exifInfo.videoinfo: N:1 D:ishtar V:V816.0.6.0.UMACNXM T:40282 M:32797 S:ishtar_semco_imx989_wide F:2016000,2707200,2956800 B:64 G:6800000,6800000,2200000, psi10:0.420000,19.959999,1.350000, ME:11466004,414440,6033700,5205980, SM:8 TM:0,0,42,0,0, E:634483,625174,351297,378240
com.android.version: 14
com.android.manufacturer: Xiaomi
com.android.model: 2304FPN6DC
com.xiaomi.product.marketname: Xiaomi 13 Ultra
com.android.capture.fps: 24.000000
com.xiaomi.real_8k: 1
com.xiaomi.preview_video_cover: 1
encoder : Lavf61.9.106
Stream #0:0(eng): Video: hevc (Main) (hev1 / 0x31766568), yuv420p(tv, bt709, progressive), 7680x4320, q=2-31, 24 fps, 12288 tbn (default)
Metadata:
encoder : Lavc61.31.101 hevc_nvenc
creation_time : 2026-03-25T06:53:47.000000Z
handler_name : VideoHandle
vendor_id : [0][0][0][0]
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 319 kb/s (default)
Metadata:
creation_time : 2026-03-25T06:53:47.000000Z
handler_name : SoundHandle
vendor_id : [0][0][0][0]
out#0/mp4 @ 0000019fbafb9840\] video:2112026KiB audio:14063KiB subtitle:0KiB other streams:0KiB global headers:0KiB muxing overhead: 0.011546% frame= 8635 fps=4.9 q=31.0 Lsize= 2126334KiB time=00:05:59.75 bitrate=48419.5kbits/s speed=0.204x F:\\20260331的Xiaomi13Ultra\\25\>ffmpeg -i input.mp4 -vf "transpose=2" -c:v hevc_nvenc -preset p7 -cq 15 -rc vbr -b:v 0 -c:a copy out.mp4 可以转换，但是视频码率从 112Mbps变成不到6Mbps，视频质量下降严重 F:\\20260331的Xiaomi13Ultra\\25\>ffmpeg -i input.mp4 -vf "transpose=2" -c:v hevc_nvenc -preset p4 out.mp4 ffmpeg version 2025-01-22-git-e20ee9f9ae-essentials_build-www.gyan.dev Copyright (c) 2000-2025 the FFmpeg developers built with gcc 14.2.0 (Rev1, Built by MSYS2 project) configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-zlib --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-sdl2 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass --enable-libfreetype --enable-libfribidi --enable-libharfbuzz --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-dxva2 --enable-d3d11va --enable-d3d12va --enable-ffnvcodec --enable-libvpl --enable-nvdec --enable-nvenc --enable-vaapi --enable-libgme --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libtheora --enable-libvo-amrwbenc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-librubberband libavutil 59. 55.100 / 59. 55.100 libavcodec 61. 31.101 / 61. 31.101 libavformat 61. 9.106 / 61. 9.106 libavdevice 61. 4.100 / 61. 4.100 libavfilter 10. 6.101 / 10. 6.101 libswscale 8. 13.100 / 8. 13.100 libswresample 5. 4.100 / 5. 4.100 libpostproc 58. 4.100 / 58. 4.100 \[mov,mp4,m4a,3gp,3g2,mj2 @ 0000012b121819c0\] Skipping unhandled metadata com.video.file.type of type 67 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'input.mp4': Metadata: major_brand : mp42 minor_version : 0 compatible_brands: isommp42 creation_time : 2026-03-25T06:53:47.000000Z com.android.version: 14 com.android.manufacturer: Xiaomi com.android.model: 2304FPN6DC com.xiaomi.product.marketname: Xiaomi 13 Ultra com.android.capture.fps: 24.000000 com.xiaomi.real_8k: 1 com.xiaomi.preview_video_cover: 1 xiaomi.exifInfo.videoinfo: N:1 D:ishtar V:V816.0.6.0.UMACNXM T:40282 M:32797 S:ishtar_semco_imx989_wide F:2016000,2707200,2956800 B:64 G:6800000,6800000,2200000, psi10:0.420000,19.959999,1.350000, ME:11466004,414440,6033700,5205980, SM:8 TM:0,0,42,0,0, E:634483,625174,351297,378240 Duration: 00:06:00.02, start: 0.000000, bitrate: 105341 kb/s Stream #0:0\[0x1\](eng): Video: hevc (Main) (hvc1 / 0x31637668), yuv420p(tv, bt709), 7680x4320, 105021 kb/s, 24 fps, 24 tbr, 90k tbn (default) Metadata: creation_time : 2026-03-25T06:53:47.000000Z handler_name : VideoHandle vendor_id : \[0\]\[0\]\[0\]\[0
Side data:
displaymatrix: rotation of -90.00 degrees
Stream #0:1[0x2](eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 319 kb/s (default)
Metadata:
creation_time : 2026-03-25T06:53:47.000000Z
handler_name : SoundHandle
vendor_id : [0][0][0][0]
File 'out.mp4' already exists. Overwrite? [y/N] y
Stream mapping:
Stream #0:0 -> #0:0 (hevc (native) -> hevc (hevc_nvenc))
Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, [?] for help
Output #0, mp4, to 'out.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
xiaomi.exifInfo.videoinfo: N:1 D:ishtar V:V816.0.6.0.UMACNXM T:40282 M:32797 S:ishtar_semco_imx989_wide F:2016000,2707200,2956800 B:64 G:6800000,6800000,2200000, psi10:0.420000,19.959999,1.350000, ME:11466004,414440,6033700,5205980, SM:8 TM:0,0,42,0,0, E:634483,625174,351297,378240
com.android.version: 14
com.android.manufacturer: Xiaomi
com.android.model: 2304FPN6DC
com.xiaomi.product.marketname: Xiaomi 13 Ultra
com.android.capture.fps: 24.000000
com.xiaomi.real_8k: 1
com.xiaomi.preview_video_cover: 1
encoder : Lavf61.9.106
Stream #0:0(eng): Video: hevc (Main) (hev1 / 0x31766568), yuv420p(tv, bt709, progressive), 7680x4320, q=2-31, 2000 kb/s, 24 fps, 12288 tbn (default)
Metadata:
encoder : Lavc61.31.101 hevc_nvenc
creation_time : 2026-03-25T06:53:47.000000Z
handler_name : VideoHandle
vendor_id : [0][0][0][0]
Side data:
cpb: bitrate max/min/avg: 0/0/2000000 buffer size: 4000000 vbv_delay: N/A
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
Metadata:
encoder : Lavc61.31.101 aac
creation_time : 2026-03-25T06:53:47.000000Z
handler_name : SoundHandle
vendor_id : [0][0][0][0]
out#0/mp4 @ 0000012b144d7e40\] video:244335KiB audio:5666KiB subtitle:0KiB other streams:0KiB global headers:0KiB muxing overhead: 0.098198% frame= 8635 fps=5.0 q=50.0 Lsize= 250247KiB time=00:05:59.75 bitrate=5698.5kbits/s speed=0.21x \[aac @ 0000012b1479c2c0\] Qavg: 476.045 F:\\20260331的Xiaomi13Ultra\\25\> 参考资料： https://blog.csdn.net/wb4916/article/details/133578690?spm=1011.2415.3001.5331 20231005使用ffmpeg旋转MP4视频 https://zhuanlan.zhihu.com/p/637790915 【FFmpeg实战】FFMPEG常用命令行 https://blog.csdn.net/weixin_37515325/article/details/127817057 FFMPEG常用命令行 5.视频旋转 顺时针旋转90度：ffmpeg -i test.mp4 -vf "transpose=1" out.mp4//顺时针旋转90° 逆时针旋转90度：ffmpeg -i test.mp4 -vf "transpose=2" out.mp4//逆时针旋转90° 水平翻转视频画面：ffmpeg -i test.mp4 -vf hflip out.mp4 垂直翻转视频画面：ffmpeg -i test.mp4 -vf vflip out.mp4 https://blog.csdn.net/wb4916/article/details/129940806?spm=1011.2415.3001.5331 20230403在WIN10下通过ffmpeg调用NVIDIA的硬件加速wmv视频转码为MP4格式  