支持RGB48的无损视频编解码器

Question

我正在寻找具有以下规格的视频编解码器：

• (数学上)无损
• 采用RGB48像素格式的帧(16位bpc)
• 通过libav使用的可能性

我不能使用像VP9这样的东西，因为它只支持YUV颜色空间，而且RGB转换与信息丢失有关。

有人知道吗？提前感谢！

Answer 1

ffmpeg支持一些10位的原始RGB编解码器，如黑魔法的r210和AJA Kona r10K，但不支持16 bpc。

有一个完整的ffmpeg 无损编解码器列表，但有些不是用于视频，大多数不接受RGB：

Lossless:

ffv1 – (FFmpeg Video Codec 1)
flashsv – (Flash Screen Video 1)
gif – (Graphics Interchange Format)
png – (Portable Network Graphics)
qtrle – (Apple Quicktime Animation (RLE))
zmbv – (Zip Motion Block / DosBox Capture Codec)

Lossless Intra Frames Only:

bmp – (Bitmap Image)
dpx – (Digital Picture Exchange)
ffvhuff – (Huffyuv FFmpeg variant)
huffyuv – (HuffYUV)
ljpeg – (Lossless JPEG)
pam – (Portable AnyMap / Netpbm)
pbm – (Portable BitMap / Netpbm)
pcx – (PC Paintbrush / Personal Computer Exchange Image)
pgm – (Portable GrayMap / Netpbm)
pgmyuv – (Portable GrayMap YUV / Netpbm)
ppm – (Portable PixMap / Netpbm)
r10k – (AJA Kona 10-bit RGB Codec)
r210 – (Uncompressed RGB 10-bit)
rawvideo – (Raw Video)
sgi – (Silicon Graphics Image)
sunrast – (Sun Raster Image)
targa – (Truevision TGA Image)
tiff – (Tagged Image File Format)
utvideo – (Ut Video)
v210 – (Uncompressed 4:2:2 10-bit)
v410 – (Uncompressed 4:4:4 10-bit / SheerVideo?)
xbm – (X BitMap)
xwd – (X Window Dump)
zlib – (Lossless Codec Library ZLIB)

Optionally Lossless:

dirac / libschroedinger – (Dirac Compression Format)
h264 / libx264 / libx264rgb – (H.264 / MPEG-4 AVC)
snow – (Snow)
Optionally Lossless Intra Frames Only:

jpeg2000 / libopenjpeg – (JPEG 2000)
jpegls – (JPEG-LS / Lossless JPEG)