ChaoticEnigma / h264-roi
Licence: other
H.264 video Region of Interest encoding tool, using x264
Stars: ✭ 44
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H264-ROI (H264 Region Of Interest) Encoder h264-roi written by Charlie Waters Programs used and linked libraries are copyright of their respective owners h264-roi Build Dependencies: libavformat libavcodec libavdevice libavutil libswscale libswresample libx264 libz libmp3lame (sometimes the linker demands this, depending on avconfig.h config) roi.sh Run Dependencies: ffmpeg libx264 libmp3lame Ubuntu Packages: $ sudo apt-get install libssl-dev libsqlite3-dev libavcodec-dev libswscale-dev libavformat-dev libavdevice-dev ffmpeg libx264-dev libmp3lame-dev Specifically, ffmpeg must be built with support for libx264 and libmp3lame. This goes something like:$ git clone git://source.ffmpeg.org/ffmpeg.git ffmpeg $ cd ffmpeg$ ./configure --enable-gpl --enable-libx264 --enable-libmp3lame $ make # make install h264-roi Building:$ git clone --recursive <h264-roi git url> h264-roi $ mkdir h264-roi-build$ cd h264-roi-build $ cmake ../h264-roi $ make h264-roi Usage: $ h264_roi <input_file> <output_file> -q <base_qp> [region] [...] Where: input_file = A planar (YUV) H264 video file (NO OTHER CHANNELS, THIS IS WHAT roi.sh IS FOR) output_file = Where to write a planar (YUV420P) H264 video file base_qp = Quantizer value from 0 to 51, where 0 is lossless, 51 is no longer video. This "compression factor" is applied to the entire frame. region = A rectengle to specify a different quantizer value for. Edges are rouned to the macroblock (16x16 pixels). See below for format. Region Format: First specify two corners of a rectangle, then the desired quantization factor of the pixel inside the rectangle. <first_corner_x>,<first_corner_y>,<second_corner_x>,<second_corner_y>:<quantizer_value> Example: Leave the pixels in the rectangle with opposite corners (100,100) and (500,400) uncompressed: 100,100,500,400:0 roi.sh Usage: $ sh roi.sh <input_file> <output_file> -q <base_qp> [region] [...] Where: input_file = A video file with audio output_file = Where to write an MP4 file with H264 video and MP3 audio base_qp = Same as above region = Same as above Exmaples: (in build directory) Re-Encode lol.avi (1920x1080) as lol.control.5.mp4 with base qp of 5, no regions of interest: $ bash roi.sh "lol.avi" "lol.control.5.mp4" -q 5 Re-Encode lol.avi (1920x1080) as lol.roi.mp4 with base qp of 20 and qp of 5 in specified regions of interest: $ bash roi.sh "lol.avi" "lol.roi.mp4" -q 20 0,125,102,681:5 0,828,324,1080:5 1810,118,1920,689:5 1608,766,1920,1080:5 572,839,1352,1080:5
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