ISO C++ forbids compound-literals. It's not available with MSVC. This is a known issue from 10 years ago, and that's why there is a av_get_time_base_q(). Since we have no plan to remove AV_TIME_BASE_Q, just make it available in C++. There are multiple choices: 1. Use C++11 syntax: AVRational{1, AV_TIME_BASE} Users may still use C++98 to write new code. So no. 2. Use av_get_time_base_q(). It's for this purpose. But it's not compile time constants as AV_TIME_BASE_Q in C. So I choose av_make_q() as Anton's suggestion. https://libav-devel.libav.narkive.com/ZQCWfTun/patch-0-2-fix-avutil-h-usage-from-c Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
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| @@ -2,6 +2,9 @@ The last version increases of all libraries were on 2023-02-09 · 1 unmodified line | |||
| 2 | 2 | ||
| 3 | API changes, most recent first: | 3 | API changes, most recent first: |
| 4 | 4 | ||
| 5 | 2023-09-19 - xxxxxxxxxx - lavu 58.25.100 - avutil.h | ||
| 6 | Make AV_TIME_BASE_Q compatible with C++. | ||
| 7 | |||
| 5 | 2023-09-xx - xxxxxxxxxx - lavf 60 - avformat.h | 8 | 2023-09-xx - xxxxxxxxxx - lavf 60 - avformat.h |
| 6 | Deprecate AVFMT_FLAG_SHORTEST without replacement. | 9 | Deprecate AVFMT_FLAG_SHORTEST without replacement. |
| 7 | 10 | ||