I researched the history of the line in h264_slice.c that this patch deleted.
That line was implicitly added in commit 4da2ac5c7a491b20be62ad19d77526e62aa57c69: http://git.videolan.org/gitweb.cgi/ffmpeg.git/?p=ffmpeg.git;a=patch;h=4da2ac5c7a491b20be62ad19d77526e62aa57c69 Although commit 4da2ac5c7a491b20be62ad19d77526e62aa57c69 didn't modify h264_slice.c, the copy_fields macro call in ff_h264_update_thread_context() would copy the new default_ref[] field of H264Context. The copying of default_ref[] was made explicit in commit 98456d4d69e0fdcc328bb9e684ae776f5bc824e1, which replaced the copy_fields macro with field-by-field copies. http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=98456d4d69e0fdcc328bb9e684ae776f5bc824e1 Commit 4da2ac5c7a491b20be62ad19d77526e62aa57c69 makes it clear that the default_ref[] field of H264Context is supposed to be initialized (to values from the associated H264SliceContext) in h264_initialise_ref_list(), so it should not be propagated from one decoding thread to the next. Wan-Teh Chang _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel