ff0107f60d
There are flaws in current implementation of VP8 multithreading encoder and decoder as reported in the following issue: https://code.google.com/p/chromium/issues/detail?id=158922 Although the data race warnings are harmless, and wouldn't cause real problems while encoding and decoding videos, it is better to fix the warnings so that VP8 code could pass the TSan test. To synchronize the thread-shared data access and maintain the speed (i.e. decoding speed), use multiple mutexes based on mb_rows to reduce the number of synchronizations needed, make the reads and writes of the shared data protected, and reduce the number of mb_col writes by nsync times. The decoder speed tests showed < 3% speed loss while using 2 ~ 4 threads. Change-Id: Ie296defffcd86a693188b668270d811964227882 |
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| .. | ||
| dboolhuff.c | ||
| dboolhuff.h | ||
| decodeframe.c | ||
| decodemv.c | ||
| decodemv.h | ||
| decoderthreading.h | ||
| detokenize.c | ||
| detokenize.h | ||
| ec_types.h | ||
| error_concealment.c | ||
| error_concealment.h | ||
| onyxd_if.c | ||
| onyxd_int.h | ||
| threading.c | ||
| treereader.h | ||