[FFmpeg-devel] [PATCH] [libdav1d.c]: Add options for spatial layers.

[Thierry Foucu]

Disable by default to output all the layers, to match libaomdec wrapper.
Add option to select the operating point for the spatial layers.
Update the documentation with the new options.
---
 doc/decoders.texi     | 6 ++++++
 libavcodec/libdav1d.c | 8 ++++++++
 2 files changed, 14 insertions(+)

diff --git a/doc/decoders.texi b/doc/decoders.texi
index 676e062e72..234890e968 100644
--- a/doc/decoders.texi
+++ b/doc/decoders.texi
@@ -71,6 +71,12 @@ Set amount of tile threads to use during decoding. The default value is 0 (autod
 Apply film grain to the decoded video if present in the bitstream. Defaults to the
 internal default of the library.
 
+ at item oppoint
+Select an operating point of a scalable AV1 bitstream (0 - 31)
+
+ at item alllayers
+Output all spatial layers of a scalable AV1 bitstream. The default value is false.
+
 @end table
 
 @section libdavs2
diff --git a/libavcodec/libdav1d.c b/libavcodec/libdav1d.c
index cf4b178f1d..ea4ef641bf 100644
--- a/libavcodec/libdav1d.c
+++ b/libavcodec/libdav1d.c
@@ -40,6 +40,8 @@ typedef struct Libdav1dContext {
     int tile_threads;
     int frame_threads;
     int apply_grain;
+    int operating_point;
+    int all_layers;
 } Libdav1dContext;
 
 static const enum AVPixelFormat pix_fmt[][3] = {
@@ -134,6 +136,10 @@ static av_cold int libdav1d_init(AVCodecContext *c)
     if (dav1d->apply_grain >= 0)
         s.apply_grain = dav1d->apply_grain;
 
+    s.all_layers = dav1d->all_layers;
+    if (dav1d->operating_point >= 0)
+        s.operating_point = dav1d->operating_point;
+
     s.n_tile_threads = dav1d->tile_threads
                      ? dav1d->tile_threads
                      : FFMIN(floor(sqrt(threads)), DAV1D_MAX_TILE_THREADS);
@@ -378,6 +384,8 @@ static const AVOption libdav1d_options[] = {
     { "tilethreads", "Tile threads", OFFSET(tile_threads), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, DAV1D_MAX_TILE_THREADS, VD },
     { "framethreads", "Frame threads", OFFSET(frame_threads), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, DAV1D_MAX_FRAME_THREADS, VD },
     { "filmgrain", "Apply Film Grain", OFFSET(apply_grain), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VD },
+    { "oppoint",  "Select an operating point of the scalable bitstream", OFFSET(operating_point), AV_OPT_TYPE_INT, { .i64 = -1 }, 0, 31, VD },
+    { "alllayers", "Output all spatial layers", OFFSET(all_layers), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VD },
     { NULL }
 };
 
-- 
2.24.0.393.g34dc348eaf-goog