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| author | Mark Thompson <sw@jkqxz.net> | 2017-03-04 23:57:40 +0000 |
|---|---|---|
| committer | Mark Thompson <sw@jkqxz.net> | 2017-06-14 22:27:32 +0100 |
| commit | d59c6a3aebc20cc64cb7a46401cb55f02f4cbe09 (patch) | |
| tree | 93d7c8e3cb688736da2b691f14546d86530ac4d4 /libavutil/hwcontext.h | |
| parent | a97fb14418fd621defec1ea5cd387953407b180d (diff) | |
hwcontext: Improve allocation in derived contexts
Use the flags argument of av_hwframe_ctx_create_derived() to pass the
mapping flags which will be used on allocation. Also, set the format
and hardware context on the allocated frame automatically - the user
should not be required to do this themselves.
(cherry picked from commit c5714b51aad41fef56dddac1d542e7fc6b984627)
Diffstat (limited to 'libavutil/hwcontext.h')
| -rw-r--r-- | libavutil/hwcontext.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/libavutil/hwcontext.h b/libavutil/hwcontext.h index 37e8831f6b..edf12cc631 100644 --- a/libavutil/hwcontext.h +++ b/libavutil/hwcontext.h @@ -566,7 +566,9 @@ int av_hwframe_map(AVFrame *dst, const AVFrame *src, int flags); * AVHWFramesContext on. * @param source_frame_ctx A reference to an existing AVHWFramesContext * which will be mapped to the derived context. - * @param flags Currently unused; should be set to zero. + * @param flags Some combination of AV_HWFRAME_MAP_* flags, defining the + * mapping parameters to apply to frames which are allocated + * in the derived device. * @return Zero on success, negative AVERROR code on failure. */ int av_hwframe_ctx_create_derived(AVBufferRef **derived_frame_ctx, |