[FFmpeg-devel] [PATCH 2/2] avcodec/libdav1d: honor the requested skip_frame level

[James Almer <jamrial@gmail.com>]

This supports dropping non-intra, non-key, or all frames.

Signed-off-by: James Almer <jamrial@gmail.com>
---
 libavcodec/libdav1d.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/libavcodec/libdav1d.c b/libavcodec/libdav1d.c
index 8e45f533cb..9252a2572d 100644
--- a/libavcodec/libdav1d.c
+++ b/libavcodec/libdav1d.c
@@ -299,6 +299,7 @@ static int libdav1d_receive_frame(AVCodecContext *c, AVFrame *frame)
 #endif
     int res;
 
+redo:
     if (!data->sz) {
         AVPacket *const pkt = dav1d->pkt;
 
@@ -363,6 +364,14 @@ static int libdav1d_receive_frame(AVCodecContext *c, AVFrame *frame)
 
     av_assert0(p->data[0] && p->allocator_data);
 
+    if ((c->skip_frame >= AVDISCARD_NONINTRA && (p->frame_hdr->frame_type != DAV1D_FRAME_TYPE_KEY &&
+                                                 p->frame_hdr->frame_type != DAV1D_FRAME_TYPE_INTRA)) ||
+        (c->skip_frame >= AVDISCARD_NONKEY   &&  p->frame_hdr->frame_type != DAV1D_FRAME_TYPE_KEY) ||
+         c->skip_frame >= AVDISCARD_ALL) {
+        dav1d_picture_unref(p);
+        goto redo;
+    }
+
     // This requires the custom allocator above
     frame->buf[0] = av_buffer_ref(p->allocator_data);
     if (!frame->buf[0]) {
-- 
2.34.1

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