修改设置自定义码率的上限

Change-Id: I102684d34bf1c0fe389a0c2153f9e7f895715243

Author: SundoggyNew

sdk/video-link-android/src/main/java/com/tencent/iot/video/link/encoder/VideoEncoder.java

@@ -25,6 +25,7 @@ public class VideoEncoder {
     private OnEncodeListener encoderListener;
     private long seq = 0L;
     private int MAX_BITRATE_LENGTH = 1000000;
+    private int beginBitRate = 0;
 
     public VideoEncoder(VideoEncodeParam param) {
         this.videoEncodeParam = param;
@@ -42,6 +43,7 @@ private void initMediaCodec() {
             if (bitRate > MAX_BITRATE_LENGTH) {
                 bitRate = MAX_BITRATE_LENGTH;
             }
+            beginBitRate = bitRate;
             mediaFormat.setInteger(MediaFormat.KEY_BIT_RATE, bitRate);
             //描述视频格式的帧速率（以帧/秒为单位）的键。帧率，一般在15至30之内，太小容易造成视频卡顿。
             mediaFormat.setInteger(MediaFormat.KEY_FRAME_RATE, videoEncodeParam.getFrameRate());
@@ -68,10 +70,8 @@ private void initMediaCodec() {
     @TargetApi(Build.VERSION_CODES.KITKAT)
     public void setVideoBitRate(int bitRate) {
         int nowBitrate = videoEncodeParam.getBitRate();
-        int nowWidth   = videoEncodeParam.getWidth();
-        int nowHeight  = videoEncodeParam.getHeight();
 
-        if ((bitRate > nowWidth * nowHeight) || (bitRate < 10000) || (nowBitrate == bitRate) || (bitRate > MAX_BITRATE_LENGTH)) {
+        if ((bitRate > beginBitRate) || (bitRate < 10000) || (nowBitrate == bitRate) || (bitRate > MAX_BITRATE_LENGTH)) {
             return;
         }