[video_player_avplay] Support ADAPTIVE_INFO property

[xiaowei-guan]

    _controller = VideoPlayerController.network(
      'https://test.playready.microsoft.com/smoothstreaming/SSWSS720H264PR/SuperSpeedway_720.ism/Manifest',
      streamingProperty: {'ADAPTIVE_INFO':'BITRATES=5000~10000|STARTBITRATE=HIGHEST|SKIPBITRATE=LOWEST'}
    );

Add streamingProperty at the time of initialization, only support ADAPTIVE_INFO now.
More detail, please refer to:
Playing Adaptive Streaming Media

[JSUYA]

I added ADAPTIVE_INFO to mpd type streaming (DRM Widevine) and tested it.
In fact, I couldn't find any changes. Can you recommend a more appropriate sample?

--- a/packages/video_player_avplay/example/lib/main.dart
+++ b/packages/video_player_avplay/example/lib/main.dart
@@ -252,6 +252,10 @@ class _DrmRemoteVideoState extends State<_DrmRemoteVideo> {

     _controller = VideoPlayerController.network(
       'https://storage.googleapis.com/wvmedia/cenc/hevc/tears/tears.mpd',
+      streamingProperty: {
+        'ADAPTIVE_INFO':
+            'BITRATES=5000~10000|STARTBITRATE=HIGHEST|SKIPBITRATE=LOWEST'
+      },
       drmConfigs: DrmConfigs(
         type: DrmType.widevine,
         licenseCallback: (Uint8List challenge) async {

[xiaowei-guan]

I added ADAPTIVE_INFO to mpd type streaming (DRM Widevine) and tested it. In fact, I couldn't find any changes. Can you recommend a more appropriate sample?

--- a/packages/video_player_avplay/example/lib/main.dart
+++ b/packages/video_player_avplay/example/lib/main.dart
@@ -252,6 +252,10 @@ class _DrmRemoteVideoState extends State<_DrmRemoteVideo> {

     _controller = VideoPlayerController.network(
       'https://storage.googleapis.com/wvmedia/cenc/hevc/tears/tears.mpd',
+      streamingProperty: {
+        'ADAPTIVE_INFO':
+            'BITRATES=5000~10000|STARTBITRATE=HIGHEST|SKIPBITRATE=LOWEST'
+      },
       drmConfigs: DrmConfigs(
         type: DrmType.widevine,
         licenseCallback: (Uint8List challenge) async {

You can test it with below codes:

            _NetworkVideo(
              title: '0~5247438',
              url:
                  'https://cph-p2p-msl.akamaized.net/hls/live/2000341/test/master.m3u8',
              adaptiveInfo: 'BITRATES=0~5247438',
            )

You can refer to this sample code:
https://github.com/xiaowei-guan/plugins/tree/avplay_set_streaming_property_sample_code/packages/video_player_avplay