This allows some optimizations in driver, such as not having to read back the data if write-only mapping is requested. --- libavutil/hwcontext_vaapi.c | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/libavutil/hwcontext_vaapi.c b/libavutil/hwcontext_vaapi.c index 558fed94c6..c3ecd90077 100644 --- a/libavutil/hwcontext_vaapi.c +++ b/libavutil/hwcontext_vaapi.c @@ -882,7 +882,16 @@ static int vaapi_map_frame(AVHWFramesContext *hwfc, } } +#if VA_CHECK_VERSION(1, 21, 0) + uint32_t vaflags = 0; + if (flags & AV_HWFRAME_MAP_READ || !(flags & AV_HWFRAME_MAP_OVERWRITE)) + vaflags |= VA_MAPBUFFER_FLAG_READ; + if (flags & AV_HWFRAME_MAP_WRITE) + vaflags |= VA_MAPBUFFER_FLAG_WRITE; + vas = vaMapBuffer2(hwctx->display, map->image.buf, &address, vaflags); +#else vas = vaMapBuffer(hwctx->display, map->image.buf, &address); +#endif if (vas != VA_STATUS_SUCCESS) { av_log(hwfc, AV_LOG_ERROR, "Failed to map image from surface " "%#x: %d (%s).\n", surface_id, vas, vaErrorStr(vas)); -- 2.42.0 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".