#28513: fix PixelFormat deprecation.

This enum is now AVPixelFormat, but Ubuntu's libav doesn't define it yet,
causing build error.

daemon/src/video/libav_deps.h

@@ -51,4 +51,8 @@ extern "C" {
 
 #define HAVE_SDP_CUSTOM_IO LIBAVFORMAT_VERSION_CHECK(54,20,3,59,103)
 
+#if (LIBAVUTIL_VERSION_MAJOR < 53) && !defined(FF_API_PIX_FMT)
+#define AVPixelFormat PixelFormat
+#endif
+
 #endif // __LIBAV_DEPS_H__

daemon/src/video/video_base.cpp

@@ -129,13 +129,13 @@ void VideoFrame::setDestination(void *data)
     }
 
     avpicture_fill((AVPicture *) frame_, (uint8_t *) data,
-                   (PixelFormat) frame_->format, frame_->width,
+                   (AVPixelFormat) frame_->format, frame_->width,
                    frame_->height);
 }
 
 size_t VideoFrame::getSize()
 {
-    return avpicture_get_size((PixelFormat) frame_->format,
+    return avpicture_get_size((AVPixelFormat) frame_->format,
                               frame_->width,
                               frame_->height);
 }
@@ -143,7 +143,7 @@ size_t VideoFrame::getSize()
 size_t VideoFrame::getSize(int width, int height, int format)
 {
     return avpicture_get_size(
-        (PixelFormat) libav_utils::libav_pixel_format(format), width, height);
+        (AVPixelFormat) libav_utils::libav_pixel_format(format), width, height);
 }
 
 int VideoFrame::blit(VideoFrame &src, int xoff, int yoff)

daemon/src/video/video_scaler.cpp

@@ -47,10 +47,10 @@ void VideoScaler::scale(VideoFrame &input, VideoFrame &output)
     ctx_ = sws_getCachedContext(ctx_,
                                 input_frame->width,
                                 input_frame->height,
-                                (PixelFormat) input_frame->format,
+                                (AVPixelFormat) input_frame->format,
                                 output_frame->width,
                                 output_frame->height,
-                                (PixelFormat) output_frame->format,
+                                (AVPixelFormat) output_frame->format,
                                 mode_,
                                 NULL, NULL, NULL);
     if (!ctx_) {