[FFmpeg-cvslog] libavcodec/libx264: add a flag to output ROI warnings only once.

[Guo, Yejun]

ffmpeg | branch: master | Guo, Yejun <yejun.guo at intel.com> | Mon Sep 23 10:02:34 2019 +0800| [104d44138be1f668973ed9ed5693a40d2514600c] | committer: Mark Thompson

libavcodec/libx264: add a flag to output ROI warnings only once.

Signed-off-by: Guo, Yejun <yejun.guo at intel.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=104d44138be1f668973ed9ed5693a40d2514600c
---

 libavcodec/libx264.c | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/libavcodec/libx264.c b/libavcodec/libx264.c
index 86e3530e79..8788286fae 100644
--- a/libavcodec/libx264.c
+++ b/libavcodec/libx264.c
@@ -99,6 +99,12 @@ typedef struct X264Context {
 
     int nb_reordered_opaque, next_reordered_opaque;
     int64_t *reordered_opaque;
+
+    /**
+     * If the encoder does not support ROI then warn the first time we
+     * encounter a frame with ROI side data.
+     */
+    int roi_warned;
 } X264Context;
 
 static void X264_log(void *p, int level, const char *fmt, va_list args)
@@ -356,7 +362,10 @@ static int X264_frame(AVCodecContext *ctx, AVPacket *pkt, const AVFrame *frame,
         sd = av_frame_get_side_data(frame, AV_FRAME_DATA_REGIONS_OF_INTEREST);
         if (sd) {
             if (x4->params.rc.i_aq_mode == X264_AQ_NONE) {
-                av_log(ctx, AV_LOG_WARNING, "Adaptive quantization must be enabled to use ROI encoding, skipping ROI.\n");
+                if (!x4->roi_warned) {
+                    x4->roi_warned = 1;
+                    av_log(ctx, AV_LOG_WARNING, "Adaptive quantization must be enabled to use ROI encoding, skipping ROI.\n");
+                }
             } else {
                 if (frame->interlaced_frame == 0) {
                     int mbx = (frame->width + MB_SIZE - 1) / MB_SIZE;
@@ -410,7 +419,10 @@ static int X264_frame(AVCodecContext *ctx, AVPacket *pkt, const AVFrame *frame,
                     x4->pic.prop.quant_offsets = qoffsets;
                     x4->pic.prop.quant_offsets_free = av_free;
                 } else {
-                    av_log(ctx, AV_LOG_WARNING, "interlaced_frame not supported for ROI encoding yet, skipping ROI.\n");
+                    if (!x4->roi_warned) {
+                        x4->roi_warned = 1;
+                        av_log(ctx, AV_LOG_WARNING, "interlaced_frame not supported for ROI encoding yet, skipping ROI.\n");
+                    }
                 }
             }
         }