【mpeg2】mpeg2編碼器的開源實現：x262
阿新 • • 發佈：2018-12-15
Date： 2018.10.15
1、x262介紹及其原始碼下載
x262簡介：x262是基於x264最佳效能開發的MPEG-2編碼器，由VideoLAN（a project and non-profit organization）釋出。 下面介紹摘抄自：https://www.videolan.org/developers/x262.html x262 is a free software library and application for encoding video streams into the MPEG-2 compression format, and is released under the terms of the GNU GPL. x262 is an MPEG-2 encoder based on the best-in-class features of x264. It also has the big advantage that the codec is simple enough for people new to video-compression to get involved. Encoder features:
- Adaptive B-frame placement
- Custom quantization matrices
- Interlacing (frame/field adaptation per macrolock)
- Ratecontrol: constant quantizer, constant quality, single or multipass ABR, optional VBV
- Scenecut detection
- Parallel encoding on multiple CPUs
- Psy optimizations for detail retention (adaptive quantization, psy-RD, psy-trellis)
- Zones for arbitrarily adjusting bitrate distribution
2、Linux平臺編譯、執行和效能測試
Linux平臺下的編譯很簡單！ 編譯：
./configure
make
生成的mpeg2編碼器為：x262
執行命令列：
./x262 -o test.mpeg2 foreman_cif.yuv --input-res 352x288 --mpeg2 -B 1024
編碼效能測試：
待補充
THE END