On Thu, 25 Oct 2018, Martin Storsjö wrote:
libx264 does have a field for opaque data to pass along with frames through the encoder, but it is a pointer, while the libavcodec reordered_opaque field is an int64_t. Therefore, allocate an array within the libx264 wrapper, where reordered_opaque values in flight are stored, and pass a pointer to this array to libx264.Update the public libavcodec documentation for the AVCodecContext field to explain this usage, and add a codec capability that allows detecting whether an encoder handles this field. --- libavcodec/avcodec.h | 12 +++++++++++- libavcodec/libx264.c | 31 +++++++++++++++++++++++++++++-- 2 files changed, 40 insertions(+), 3 deletions(-) diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h index fb8e34e7d5..727e1c411d 100644 --- a/libavcodec/avcodec.h +++ b/libavcodec/avcodec.h @@ -899,6 +899,13 @@ typedef struct RcOverride{ */ #define AV_CODEC_CAP_HYBRID (1 << 18) +/** + * This codec takes the reordered_opaque field from input AVFrames + * and returns it in the corresponding field in AVCodecContext after + * encoding. + */ +#define AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE (1 << 19)
This obviously needs a minor bump, I'll add one locally. // Martin _______________________________________________ libav-devel mailing list libav-devel@libav.org https://lists.libav.org/mailman/listinfo/libav-devel
