avdevice: Constify all devices

[ffmpeg] / libavdevice / kmsgrab.c

diff --git a/libavdevice/kmsgrab.c b/libavdevice/kmsgrab.c
index edfa26490942042eee92535eb43e1cda4c589584..ba9b306c65208fa1f6472b2b604648ef78bdd0ca 100644 (file)
--- a/libavdevice/kmsgrab.c
+++ b/libavdevice/kmsgrab.c
@@ -160,6 +160,7 @@ static int kmsgrab_get_fb2(AVFormatContext *avctx,
     KMSGrabContext *ctx = avctx->priv_data;
     drmModeFB2 *fb;
     int err, i, nb_objects;
+    uint64_t modifier = ctx->drm_format_modifier;
 
     fb = drmModeGetFB2(ctx->hwctx->fd, plane->fb_id);
     if (!fb) {
@@ -175,13 +176,6 @@ static int kmsgrab_get_fb2(AVFormatContext *avctx,
         err = AVERROR(EIO);
         goto fail;
     }
-    if (fb->modifier != ctx->drm_format_modifier) {
-        av_log(avctx, AV_LOG_ERROR, "Plane %"PRIu32" framebuffer "
-               "format modifier changed: now %"PRIx64".\n",
-               ctx->plane_id, fb->modifier);
-        err = AVERROR(EIO);
-        goto fail;
-    }
     if (fb->width != ctx->width || fb->height != ctx->height) {
         av_log(avctx, AV_LOG_ERROR, "Plane %"PRIu32" framebuffer "
                "dimensions changed: now %"PRIu32"x%"PRIu32".\n",
@@ -195,6 +189,9 @@ static int kmsgrab_get_fb2(AVFormatContext *avctx,
         goto fail;
     }
 
+    if (fb->flags & DRM_MODE_FB_MODIFIERS)
+        modifier = fb->modifier;
+
     *desc = (AVDRMFrameDescriptor) {
         .nb_layers = 1,
         .layers[0] = {
@@ -243,7 +240,7 @@ static int kmsgrab_get_fb2(AVFormatContext *avctx,
             desc->objects[obj] = (AVDRMObjectDescriptor) {
                 .fd              = fd,
                 .size            = size,
-                .format_modifier = fb->modifier,
+                .format_modifier = modifier,
             };
             desc->layers[0].planes[i] = (AVDRMPlaneDescriptor) {
                 .object_index = obj,
@@ -271,7 +268,7 @@ static int kmsgrab_read_packet(AVFormatContext *avctx, AVPacket *pkt)
     int64_t now;
     int err;
 
-    now = av_gettime();
+    now = av_gettime_relative();
     if (ctx->frame_last) {
         int64_t delay;
         while (1) {
@@ -279,10 +276,11 @@ static int kmsgrab_read_packet(AVFormatContext *avctx, AVPacket *pkt)
             if (delay <= 0)
                 break;
             av_usleep(delay);
-            now = av_gettime();
+            now = av_gettime_relative();
         }
     }
     ctx->frame_last = now;
+    now = av_gettime();
 
     plane = drmModeGetPlane(ctx->hwctx->fd, ctx->plane_id);
     if (!plane) {
@@ -367,6 +365,7 @@ static const struct {
     enum AVPixelFormat pixfmt;
     uint32_t drm_format;
 } kmsgrab_formats[] = {
+    // Monochrome.
 #ifdef DRM_FORMAT_R8
     { AV_PIX_FMT_GRAY8,    DRM_FORMAT_R8       },
 #endif
@@ -374,6 +373,7 @@ static const struct {
     { AV_PIX_FMT_GRAY16LE, DRM_FORMAT_R16      },
     { AV_PIX_FMT_GRAY16BE, DRM_FORMAT_R16      | DRM_FORMAT_BIG_ENDIAN },
 #endif
+    // <8-bit RGB.
     { AV_PIX_FMT_BGR8,     DRM_FORMAT_BGR233   },
     { AV_PIX_FMT_RGB555LE, DRM_FORMAT_XRGB1555 },
     { AV_PIX_FMT_RGB555BE, DRM_FORMAT_XRGB1555 | DRM_FORMAT_BIG_ENDIAN },
@@ -383,6 +383,7 @@ static const struct {
     { AV_PIX_FMT_RGB565BE, DRM_FORMAT_RGB565   | DRM_FORMAT_BIG_ENDIAN },
     { AV_PIX_FMT_BGR565LE, DRM_FORMAT_BGR565   },
     { AV_PIX_FMT_BGR565BE, DRM_FORMAT_BGR565   | DRM_FORMAT_BIG_ENDIAN },
+    // 8-bit RGB.
     { AV_PIX_FMT_RGB24,    DRM_FORMAT_RGB888   },
     { AV_PIX_FMT_BGR24,    DRM_FORMAT_BGR888   },
     { AV_PIX_FMT_0RGB,     DRM_FORMAT_BGRX8888 },
@@ -393,6 +394,12 @@ static const struct {
     { AV_PIX_FMT_ABGR,     DRM_FORMAT_RGBA8888 },
     { AV_PIX_FMT_RGBA,     DRM_FORMAT_ABGR8888 },
     { AV_PIX_FMT_BGRA,     DRM_FORMAT_ARGB8888 },
+    // 10-bit RGB.
+    { AV_PIX_FMT_X2RGB10LE, DRM_FORMAT_XRGB2101010 },
+    { AV_PIX_FMT_X2RGB10BE, DRM_FORMAT_XRGB2101010 | DRM_FORMAT_BIG_ENDIAN },
+    // 8-bit YUV 4:2:0.
+    { AV_PIX_FMT_NV12,     DRM_FORMAT_NV12     },
+    // 8-bit YUV 4:2:2.
     { AV_PIX_FMT_YUYV422,  DRM_FORMAT_YUYV     },
     { AV_PIX_FMT_YVYU422,  DRM_FORMAT_YVYU     },
     { AV_PIX_FMT_UYVY422,  DRM_FORMAT_UYVY     },
@@ -548,15 +555,18 @@ static av_cold int kmsgrab_read_header(AVFormatContext *avctx)
             err = AVERROR(EINVAL);
             goto fail;
         }
-        if (ctx->drm_format_modifier != DRM_FORMAT_MOD_INVALID &&
-            ctx->drm_format_modifier != fb2->modifier) {
-            av_log(avctx, AV_LOG_ERROR, "Framebuffer format modifier "
-                   "%"PRIx64" does not match expected modifier.\n",
-                   fb2->modifier);
-            err = AVERROR(EINVAL);
-            goto fail;
-        } else {
-            ctx->drm_format_modifier = fb2->modifier;
+
+        if (fb2->flags & DRM_MODE_FB_MODIFIERS) {
+            if (ctx->drm_format_modifier != DRM_FORMAT_MOD_INVALID &&
+                ctx->drm_format_modifier != fb2->modifier) {
+                av_log(avctx, AV_LOG_ERROR, "Framebuffer format modifier "
+                       "%"PRIx64" does not match expected modifier.\n",
+                       fb2->modifier);
+                err = AVERROR(EINVAL);
+                goto fail;
+            } else {
+                ctx->drm_format_modifier = fb2->modifier;
+            }
         }
         av_log(avctx, AV_LOG_VERBOSE, "Format is %s, from "
                "DRM format %"PRIx32" modifier %"PRIx64".\n",
@@ -698,7 +708,7 @@ static const AVClass kmsgrab_class = {
     .category   = AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT,
 };
 
-AVInputFormat ff_kmsgrab_demuxer = {
+const AVInputFormat ff_kmsgrab_demuxer = {
     .name           = "kmsgrab",
     .long_name      = NULL_IF_CONFIG_SMALL("KMS screen capture"),
     .priv_data_size = sizeof(KMSGrabContext),