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ffmpeg 视频格式转换

2015-09-08 10:17 253 查看

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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标签： ffmpeg

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