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| author | James Dong <jdong@google.com> | 2011-06-17 16:50:13 -0700 |
|---|---|---|
| committer | James Dong <jdong@google.com> | 2011-06-20 11:53:39 -0700 |
| commit | f3ac3e3c94c14dbf1cdf6a4577f0b3aa8edfad06 (patch) | |
| tree | 5e6ff0b3ccfa1362a858de21115be0d9d08b59aa | |
| parent | b5512a1bd218269de30e1d66bac55c81e227dc0c (diff) | |
| download | frameworks_av-f3ac3e3c94c14dbf1cdf6a4577f0b3aa8edfad06.zip frameworks_av-f3ac3e3c94c14dbf1cdf6a4577f0b3aa8edfad06.tar.gz frameworks_av-f3ac3e3c94c14dbf1cdf6a4577f0b3aa8edfad06.tar.bz2 | |
Boost software vp8 decoder performance using multi-threaded decoding if possible
Change-Id: I7258c7d0cf91aa7c62444d03ed8bce96fb23d8ef
related-to-bug: 4539653
| -rw-r--r-- | media/libstagefright/codecs/on2/dec/SoftVPX.cpp | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/media/libstagefright/codecs/on2/dec/SoftVPX.cpp b/media/libstagefright/codecs/on2/dec/SoftVPX.cpp index e9ce719..7e83163 100644 --- a/media/libstagefright/codecs/on2/dec/SoftVPX.cpp +++ b/media/libstagefright/codecs/on2/dec/SoftVPX.cpp @@ -117,11 +117,27 @@ void SoftVPX::initPorts() { addPort(def); } +static int GetCPUCoreCount() { + int cpuCoreCount = 1; +#if defined(_SC_NPROCESSORS_ONLN) + cpuCoreCount = sysconf(_SC_NPROCESSORS_ONLN); +#else + // _SC_NPROC_ONLN must be defined... + cpuCoreCount = sysconf(_SC_NPROC_ONLN); +#endif + CHECK(cpuCoreCount >= 1); + LOGV("Number of CPU cores: %d", cpuCoreCount); + return cpuCoreCount; +} + status_t SoftVPX::initDecoder() { mCtx = new vpx_codec_ctx_t; vpx_codec_err_t vpx_err; + vpx_codec_dec_cfg_t cfg; + memset(&cfg, 0, sizeof(vpx_codec_dec_cfg_t)); + cfg.threads = GetCPUCoreCount(); if ((vpx_err = vpx_codec_dec_init( - (vpx_codec_ctx_t *)mCtx, &vpx_codec_vp8_dx_algo, NULL, 0))) { + (vpx_codec_ctx_t *)mCtx, &vpx_codec_vp8_dx_algo, &cfg, 0))) { LOGE("on2 decoder failed to initialize. (%d)", vpx_err); return UNKNOWN_ERROR; } |