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motion: fix bitrate overflow

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This commit is contained in:
Joo Aun Saw 2019-06-21 13:30:54 +10:00
parent 065e6b8597
commit 9bd15919a7
1 changed files with 13 additions and 0 deletions
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package/motion/fix_bitrate_overflow.patch Normal file
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diff --git a/ffmpeg.c b/ffmpeg.c
index a8afa6e..3f731ca 100644
--- a/ffmpeg.c
+++ b/ffmpeg.c
@@ -558,7 +558,7 @@ static int ffmpeg_set_quality(struct ffmpeg *ffmpeg){
if ((strcmp(ffmpeg->codec->name, "h264_omx") == 0) || (strcmp(ffmpeg->codec->name, "mpeg4_omx") == 0)) {
// H264 OMX encoder quality can only be controlled via bit_rate
// bit_rate = ffmpeg->width * ffmpeg->height * ffmpeg->fps * quality_factor
- ffmpeg->quality = (ffmpeg->width * ffmpeg->height * ffmpeg->fps * ffmpeg->quality) >> 7;
+ ffmpeg->quality = (int)(((int64_t)ffmpeg->width * ffmpeg->height * ffmpeg->fps * ffmpeg->quality) >> 7);
// Clip bit rate to min
if (ffmpeg->quality < 4000) // magic number
ffmpeg->quality = 4000;