Add support for resolution change based on network congestion (enabled on 'tch' build only)

2 files changed, 13 insertions, 0 deletions

diff --git a/tinyMEDIA/include/tinymedia/tmedia_common.h b/tinyMEDIA/include/tinymedia/tmedia_common.h
index e786146..5fc041e 100755
--- a/tinyMEDIA/include/tinymedia/tmedia_common.h
+++ b/tinyMEDIA/include/tinymedia/tmedia_common.h
@@ -263,6 +263,7 @@ TINYMEDIA_API int tmedia_get_video_quality(tmedia_bandwidth_level_t bl);
 TINYMEDIA_API int32_t tmedia_get_video_bandwidth_kbps(unsigned width, unsigned height, unsigned fps, unsigned motion_rank);
 TINYMEDIA_API int32_t tmedia_get_video_bandwidth_kbps_2(unsigned width, unsigned height, unsigned fps);
 TINYMEDIA_API int32_t tmedia_get_video_bandwidth_kbps_3();
+TINYMEDIA_API int32_t tmedia_get_video_motion_rank(unsigned width, unsigned height, unsigned fps, int32_t bw_kbps);
 #define tmedia_get_video_qscale tmedia_get_video_quality
 
 TMEDIA_END_DECLS
diff --git a/tinyMEDIA/src/tmedia_common.c b/tinyMEDIA/src/tmedia_common.c
index 86832e1..1f20845 100755
--- a/tinyMEDIA/src/tmedia_common.c
+++ b/tinyMEDIA/src/tmedia_common.c
@@ -451,4 +451,16 @@ int32_t tmedia_get_video_bandwidth_kbps_3()
     unsigned height = 2160;
     tmedia_video_get_size(tmedia_defaults_get_pref_video_size(), &width, &height);
     return tmedia_get_video_bandwidth_kbps(width, height, tmedia_defaults_get_video_fps(), tmedia_defaults_get_video_motion_rank());
+}
+
+int32_t tmedia_get_video_motion_rank(unsigned width, unsigned height, unsigned fps, int32_t bw_kbps)
+{
+	if (!width || !height || !fps || bw_kbps <= 0) {
+		TSK_DEBUG_ERROR("Invalid parameter");
+		return 0;
+	}
+	else {
+		float mr = (bw_kbps * 1024.f) / (width * height * fps * 0.07f);
+		return (int32_t)(TSK_MAX(1.f, (mr + 0.5f)));
+	}	
 }
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