how to test exp_refactor_all branch

[Hüseyin BIYIK]

1. to use p010/yuv420p10 10bit formats you need this fix in the vendor kernel and this fix in rgamulti

2. compile with --enable-shared additional to the description in wiki

3. manipulate the LD_LIBRARY_PATH to point the .so files from the build folder
   ie:

export PATH="/home/alarm/extusb/ffmpeg:$PATH"
export LD_LIBRARY_PATH="/home/alarm/extusb/ffmpeg/libavcodec:$LD_LIBRARY_PATH"
export LD_LIBRARY_PATH="/home/alarm/extusb/ffmpeg/libavdevice:$LD_LIBRARY_PATH"
export LD_LIBRARY_PATH="/home/alarm/extusb/ffmpeg/libavfilter:$LD_LIBRARY_PATH"
export LD_LIBRARY_PATH="/home/alarm/extusb/ffmpeg/libavformat:$LD_LIBRARY_PATH"
export LD_LIBRARY_PATH="/home/alarm/extusb/ffmpeg/libavutil:$LD_LIBRARY_PATH"
export LD_LIBRARY_PATH="/home/alarm/extusb/ffmpeg/libpostproc:$LD_LIBRARY_PATH"
export LD_LIBRARY_PATH="/home/alarm/extusb/ffmpeg/libswresample:$LD_LIBRARY_PATH"
export LD_LIBRARY_PATH="/home/alarm/extusb/ffmpeg/libswscale:$LD_LIBRARY_PATH"

use a sscript like above where it points to your build/install folder, save it to setpath.sh, then execute source setpath.sh. Now your which is spawned from this environment (cli), will use the new ffmpeg

4. to test with kodi, build kodi with external ffmpeg usage. You can refer to this PKGBUILD on how to do this.

run kodi with:

kodi.bin --windowing=gbm --audio-backend=alsa

make sure you select

settings->player->videos->render method
Allow using DRM PRIME Decoder=enable
Allow Hardware Acceleation with DRM PRIME=enable
Prime Render Method=EGL

IMPORTANT: Make sure your audio is working, otherwise playback will stop after several seconds due to unsynchronized picture and sound.

5. To test with mpv run with below commandline args.
   mpv --hwdec=rkmpp pathtofile
   IMPORTANT: to decode drm_prime NV16 frames you either need latest git version of mpv or below patch
   IMPORTANT: to decode drm_prime P010 below patch
   IMPORTANT: if you receive an error like `Mapped surface with format 'nv12' has unexpected number of planes. (0 layers and 0 planes, but expected 2 planes),``build mpv from git, this is an issue with mpv and fixed in the latest.

From 504b2de386bffc0746c243b5f937fb0c5b7c4447 Mon Sep 17 00:00:00 2001
From: hbiyik <[e-mail]>
Date: Thu, 28 Sep 2023 22:25:25 +0200
Subject: [PATCH 1/2] hwdec_drmprime: add nv16 support

NV16 is the half subsampled version of NV12 format. Decoders which
support High 4:2:2 of h264 provide the frame in NV16 format to establish
richer colorspace. Similar profiles are also available in HEVC and other
popular codecs. This commit allows NV16 frames to be displayed over
drmprime layers.

Signed-off-by: hbiyik <[e-mail]>
---
 video/out/hwdec/dmabuf_interop_gl.c | 1 +
 video/out/hwdec/hwdec_drmprime.c    | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/video/out/hwdec/dmabuf_interop_gl.c b/video/out/hwdec/dmabuf_interop_gl.c
index bd33474289..e7fb1031a0 100644
--- a/video/out/hwdec/dmabuf_interop_gl.c
+++ b/video/out/hwdec/dmabuf_interop_gl.c
@@ -176,6 +176,7 @@ static bool vaapi_gl_map(struct ra_hwdec_mapper *mapper,
         if (p_mapper->desc.layers[i].nb_planes > 1) {
             switch (p_mapper->desc.layers[i].format) {
             case DRM_FORMAT_NV12:
+            case DRM_FORMAT_NV16:
                 format[0] = DRM_FORMAT_R8;
                 format[1] = DRM_FORMAT_GR88;
                 break;
diff --git a/video/out/hwdec/hwdec_drmprime.c b/video/out/hwdec/hwdec_drmprime.c
index 5051207413..290f11c535 100644
--- a/video/out/hwdec/hwdec_drmprime.c
+++ b/video/out/hwdec/hwdec_drmprime.c
@@ -29,6 +29,7 @@
 
 #include "libmpv/render_gl.h"
 #include "options/m_config.h"
+#include "video/fmt-conversion.h"
 #include "video/out/drm_common.h"
 #include "video/out/gpu/hwdec.h"
 #include "video/out/hwdec/dmabuf_interop.h"
@@ -117,6 +118,7 @@ static int init(struct ra_hwdec *hw)
     int num_formats = 0;
     MP_TARRAY_APPEND(p, p->formats, num_formats, IMGFMT_NV12);
     MP_TARRAY_APPEND(p, p->formats, num_formats, IMGFMT_420P);
+    MP_TARRAY_APPEND(p, p->formats, num_formats, pixfmt2imgfmt(AV_PIX_FMT_NV16));
     MP_TARRAY_APPEND(p, p->formats, num_formats, 0); // terminate it
 
     p->hwctx.hw_imgfmt = IMGFMT_DRMPRIME;
-- 
2.42.0


From 76a34a8f31fd69094adef09c4b2146da7a842a10 Mon Sep 17 00:00:00 2001
From: boogie <[e-mail]>
Date: Wed, 1 Nov 2023 20:35:19 +0100
Subject: [PATCH 2/2] hwdec_drmprime: add p010 support

Removes the limitation that P010 DRMPrime Avframes were filtered out

Signed-off-by: hbiyik <[e-mail]>
---
 video/out/hwdec/hwdec_drmprime.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/video/out/hwdec/hwdec_drmprime.c b/video/out/hwdec/hwdec_drmprime.c
index 290f11c535..9c63ab49ff 100644
--- a/video/out/hwdec/hwdec_drmprime.c
+++ b/video/out/hwdec/hwdec_drmprime.c
@@ -119,6 +119,7 @@ static int init(struct ra_hwdec *hw)
     MP_TARRAY_APPEND(p, p->formats, num_formats, IMGFMT_NV12);
     MP_TARRAY_APPEND(p, p->formats, num_formats, IMGFMT_420P);
     MP_TARRAY_APPEND(p, p->formats, num_formats, pixfmt2imgfmt(AV_PIX_FMT_NV16));
+    MP_TARRAY_APPEND(p, p->formats, num_formats, pixfmt2imgfmt(AV_PIX_FMT_P010));
     MP_TARRAY_APPEND(p, p->formats, num_formats, 0); // terminate it
 
     p->hwctx.hw_imgfmt = IMGFMT_DRMPRIME;
-- 
2.42.0