diff options
| -rw-r--r-- | DOCS/man/input.rst | 10 | ||||
| -rw-r--r-- | player/command.c | 6 |
2 files changed, 16 insertions, 0 deletions
diff --git a/DOCS/man/input.rst b/DOCS/man/input.rst index f83e72703c..bbfe2b7963 100644 --- a/DOCS/man/input.rst +++ b/DOCS/man/input.rst @@ -456,6 +456,16 @@ Input Commands that are Possibly Subject to Change random points. Instead, call ``overlay_add`` again (preferably with a different memory region to prevent tearing). + It is also possible to pass a raw memory address for use as bitmap memory + by passing a memory address as integer prefixed with a ``&`` character. + Passing the wrong thing here will crash the player. The ``offset`` parameter + is not used and must be 0. This mode might be useful for use with libmpv. + + On Windows, currently only raw memory addresses work. File mapping is not + implemented because a ``mmap`` compatibility layer is missing, and because + this kind of shared memory method would perhaps not be overly useful on + Windows. + ``offset`` is the offset of the first pixel in the source file. It is passed directly to ``mmap`` and is subject to certain restrictions (see ``man mmap`` for details). In particular, this value has to be a diff --git a/player/command.c b/player/command.c index ef75594f7b..1b0a7df0cb 100644 --- a/player/command.c +++ b/player/command.c @@ -3326,6 +3326,12 @@ static int overlay_add(struct MPContext *mpctx, int id, int x, int y, if (!file[1] || end[0]) fd = -1; close_fd = false; + } else if (file[0] == '&') { + char *end; + unsigned long long addr = strtoull(&file[1], &end, 0); + if (!file[1] || end[0]) + addr = 0; + p = (void *)(uintptr_t)addr; } else { fd = open(file, O_RDONLY | O_BINARY | O_CLOEXEC); } |