Trying to use webp, however the client says it is unsupported on the server.
Important to note, all command were ran on the same machine.
desktop$ xpra start --encoding help xpra server supports the following encodings: (please wait, encoder initialization may take a few seconds) 2014-09-19 12:21:21,037 video encoder 'nvenc' could not be loaded: 2014-09-19 12:21:21,037 No module named pycuda * rgb Raw RGB pixels, lossless, compressed using zlib or lz4 (24bpp or 32bpp for transparency) * h264 H.264 video codec * vp8 VP8 video codec * png Portable Network Graphics (lossless, 24bpp or 32bpp for transparency) * png/L Portable Network Graphics (lossy, 8bpp grayscale) * png/P Portable Network Graphics (lossy, 8bpp colour) * jpeg JPEG lossy compression
desktop$ xpra attach --encoding help 2014-09-19 12:21:36,786 xpra client version 0.14.7 gtk2 xpra client supports the following encodings: * h264 H.264 video codec * h265 H.265 (HEVC) video codec (slow and buggy - do not use!) * vp8 VP8 video codec * vp9 VP9 video codec (very slow - do not use!) * png Portable Network Graphics (lossless, 24bpp or 32bpp for transparency) * png/P Portable Network Graphics (lossy, 8bpp colour) * png/L Portable Network Graphics (lossy, 8bpp grayscale) * webp WebP compression (lossless or lossy) * rgb Raw RGB pixels, lossless, compressed using zlib or lz4 (24bpp or 32bpp for transparency) * jpeg JPEG lossy compression
desktop$ python /usr/lib64/python2.6/site-packages/xpra/codecs/loader.py codecs and csc modules found: * PIL : /usr/lib64/python2.6/site-packages/PIL/__init__.pyc * enc_vpx : /usr/lib64/python2.6/site-packages/xpra/codecs/vpx/encoder.so * dec_vpx : /usr/lib64/python2.6/site-packages/xpra/codecs/vpx/decoder.so * enc_x264 : /usr/lib64/python2.6/site-packages/xpra/codecs/enc_x264/encoder.so * enc_x265 : * nvenc : * csc_swscale : /usr/lib64/python2.6/site-packages/xpra/codecs/csc_swscale/colorspace_converter.so * csc_cython : /usr/lib64/python2.6/site-packages/xpra/codecs/csc_cython/colorspace_converter.so * csc_opencl : * dec_avcodec : * dec_avcodec2 : /usr/lib64/python2.6/site-packages/xpra/codecs/dec_avcodec2/decoder.so * enc_webp : /usr/lib64/python2.6/site-packages/xpra/codecs/webp/encode.so * dec_webp : /usr/lib64/python2.6/site-packages/xpra/codecs/webp/decode.so codecs versions: * PIL : 2.5.3 * avcodec2 : 55.69.100 * cython : 0.3.0.20.2 * dec_webp : 0.4.1 * enc_webp : 0.4.1 * swscale : 2.6.100 * vpx : 1.3.0 * x264 : 142
Confirmed, very strange how centos7 with the same list of packages does not have the same problem!
Ah, got it. Will probably close as 'wontfix'.
The problem is that our cython webp encoder is an accelerator which uses python-pillow as fallback, and so unless pillow supports webp encoding then we cannot enable it. We can't build python-pillow against our private libwebp-xpra either.
The annoying thing is that the fallback never gets used (at least not during my testing on x86 / x86_64).
Actually, I have one (see r7710 + r7711), since we never really use the fallback, we can relax it a bit and allow webp as long as we have webp OR png supported in python-pillow. In practice, we will always use webp, and still guarantee that we don't end up in a dead end if we don't.
Suitable for backports, tested on centos6.
this ticket has been moved to: https://github.com/Xpra-org/xpra/issues/686