[FFmpeg-devel] [PATCH] libavcodec/libx264 and libx265: add a flag to output ROI warnings only once.

[Guo, Yejun]

Signed-off-by: Guo, Yejun <yejun.guo at intel.com>
---
 libavcodec/libx264.c | 14 ++++++++++++--
 libavcodec/libx265.c |  9 ++++++++-
 2 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/libavcodec/libx264.c b/libavcodec/libx264.c
index 86e3530..62316e6 100644
--- a/libavcodec/libx264.c
+++ b/libavcodec/libx264.c
@@ -99,6 +99,10 @@ 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 +360,10 @@ 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 +417,10 @@ 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");
+                    }
                 }
             }
         }
diff --git a/libavcodec/libx265.c b/libavcodec/libx265.c
index 665b780..15fc4e7 100644
--- a/libavcodec/libx265.c
+++ b/libavcodec/libx265.c
@@ -47,6 +47,10 @@ typedef struct libx265Context {
     char *tune;
     char *profile;
     char *x265_opts;
+
+    // If the encoder does not support ROI then warn the first time we
+    // encounter a frame with ROI side data.
+    int roi_warned;
 } libx265Context;
 
 static int is_keyframe(NalUnitType naltype)
@@ -310,7 +314,10 @@ static av_cold int libx265_encode_set_roi(libx265Context *ctx, const AVFrame *fr
     AVFrameSideData *sd = av_frame_get_side_data(frame, AV_FRAME_DATA_REGIONS_OF_INTEREST);
     if (sd) {
         if (ctx->params->rc.aqMode == X265_AQ_NONE) {
-            av_log(ctx, AV_LOG_WARNING, "Adaptive quantization must be enabled to use ROI encoding, skipping ROI.\n");
+            if (!ctx->roi_warned) {
+                ctx->roi_warned = 1;
+                av_log(ctx, AV_LOG_WARNING, "Adaptive quantization must be enabled to use ROI encoding, skipping ROI.\n");
+            }
         } else {
             /* 8x8 block when qg-size is 8, 16*16 block otherwise. */
             int mb_size = (ctx->params->rc.qgSize == 8) ? 8 : 16;
-- 
2.7.4