ffmpeg 视频格式转换

来源：互联网发布：tensorflow教程视频编辑：程序博客网时间：2024/06/05 12:04

在进行图形图像分析的时候，我们往往需要把视频转换为yuv 格式或者单通道灰度图像，ffmpeg 就显得很方便了

以下我将示范几个用法

用法1. mp4 转换为 gray ,单通道的，图像大小640*480，总共500帧

F:\video>ffmpeg.exe -i 20120730_051556_N.mp4 -pix_fmt gray -s 640*480 -frames 500 gray.yuv

用法2. mp4 转换为 yuv411p，图像大小640*480，总共500帧

F:\video>ffmpeg.exe -i 20120730_051556_N.mp4 -pix_fmt yuv411p -s 640*480 -frames 500 yuv411p.yuv

播放方法：

F:\video>ffplay.exe -pix_fmt gray -video_size 640*480 gray.yuv

支持的格式种类

Pixel formats:
I.... = Supported Input format for conversion
.O... = Supported Output format for conversion
..H.. = Hardware accelerated format
...P. = Paletted format
....B = Bitstream format
FLAGS NAME NB_COMPONENTS BITS_PER_PIXEL
-----
IO... yuv420p 3 12
IO... yuyv422 3 16
IO... rgb24 3 24
IO... bgr24 3 24
IO... yuv422p 3 16
IO... yuv444p 3 24
IO... yuv410p 3 9
IO... yuv411p 3 12
IO... gray 1 8
IO..B monow 1 1
IO..B monob 1 1
I..P. pal8 1 8
IO... yuvj420p 3 12
IO... yuvj422p 3 16
IO... yuvj444p 3 24
..H.. xvmcmc 0 0
..H.. xvmcidct 0 0
IO... uyvy422 3 16
..... uyyvyy411 3 12
IO... bgr8 3 8
.O..B bgr4 3 4
IO... bgr4_byte 3 4
IO... rgb8 3 8
.O..B rgb4 3 4
IO... rgb4_byte 3 4
IO... nv12 3 12
IO... nv21 3 12
IO... argb 4 32
IO... rgba 4 32
IO... abgr 4 32
IO... bgra 4 32
IO... gray16be 1 16
IO... gray16le 1 16
IO... yuv440p 3 16
IO... yuvj440p 3 16
IO... yuva420p 4 20
..H.. vdpau_h264 0 0
..H.. vdpau_mpeg1 0 0
..H.. vdpau_mpeg2 0 0
..H.. vdpau_wmv3 0 0
..H.. vdpau_vc1 0 0
IO... rgb48be 3 48
IO... rgb48le 3 48
IO... rgb565be 3 16
IO... rgb565le 3 16
IO... rgb555be 3 15
IO... rgb555le 3 15
IO... bgr565be 3 16
IO... bgr565le 3 16
IO... bgr555be 3 15
IO... bgr555le 3 15
..H.. vaapi_moco 0 0
..H.. vaapi_idct 0 0
..H.. vaapi_vld 0 0
IO... yuv420p16le 3 24
IO... yuv420p16be 3 24
IO... yuv422p16le 3 32
IO... yuv422p16be 3 32
IO... yuv444p16le 3 48
IO... yuv444p16be 3 48
..H.. vdpau_mpeg4 0 0
..H.. dxva2_vld 0 0
IO... rgb444le 3 12
IO... rgb444be 3 12
IO... bgr444le 3 12
IO... bgr444be 3 12
I.... gray8a 2 16
IO... bgr48be 3 48
IO... bgr48le 3 48
IO... yuv420p9be 3 13
IO... yuv420p9le 3 13
IO... yuv420p10be 3 15
IO... yuv420p10le 3 15
IO... yuv422p10be 3 20
IO... yuv422p10le 3 20
IO... yuv444p9be 3 27
IO... yuv444p9le 3 27
IO... yuv444p10be 3 30
IO... yuv444p10le 3 30
IO... yuv422p9be 3 18
IO... yuv422p9le 3 18
..H.. vda_vld 0 0
I.... gbrp 3 24
I.... gbrp9be 3 27
I.... gbrp9le 3 27
I.... gbrp10be 3 30
I.... gbrp10le 3 30
I.... gbrp16be 3 48
I.... gbrp16le 3 48
IO... yuva420p9be 4 22
IO... yuva420p9le 4 22
IO... yuva422p9be 4 27
IO... yuva422p9le 4 27
IO... yuva444p9be 4 36
IO... yuva444p9le 4 36
IO... yuva420p10be 4 25
IO... yuva420p10le 4 25
IO... yuva422p10be 4 30
IO... yuva422p10le 4 30
IO... yuva444p10be 4 40
IO... yuva444p10le 4 40
IO... yuva420p16be 4 40
IO... yuva420p16le 4 40
IO... yuva422p16be 4 48
IO... yuva422p16le 4 48
IO... yuva444p16be 4 64
IO... yuva444p16le 4 64
..H.. vdpau 0 0
I.... rgba64be 4 64
I.... rgba64le 4 64
..... bgra64be 4 64
..... bgra64le 4 64
IO... 0rgb 3 24
IO... rgb0 3 24
IO... 0bgr 3 24
IO... bgr0 3 24
IO... yuva444p 4 32
IO... yuva422p 4 24
IO... yuv420p12be 3 18
IO... yuv420p12le 3 18
IO... yuv420p14be 3 21
IO... yuv420p14le 3 21
IO... yuv422p12be 3 24
IO... yuv422p12le 3 24
IO... yuv422p14be 3 28
IO... yuv422p14le 3 28
IO... yuv444p12be 3 36
IO... yuv444p12le 3 36
IO... yuv444p14be 3 42
IO... yuv444p14le 3 42
I.... gbrp12be 3 36
I.... gbrp12le 3 36
I.... gbrp14be 3 42
I.... gbrp14le 3 42

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