linphone函数video_stream_event_cb()分析

最新推荐文章于 2023-02-12 11:14:06 发布

cv.exp

最新推荐文章于 2023-02-12 11:14:06 发布

阅读量957

点赞数

CC 4.0 BY-SA版权

文章标签： linphone

本文链接：https://blog.youkuaiyun.com/forest_world/article/details/51803368

Audio Video Transmission 专栏收录该内容

43 篇文章

订阅专栏

本文介绍了Linphone视频通话中视频流错误的处理方法。通过设置事件回调函数，可以捕捉到解码错误并采取措施进行恢复，同时还能监听到第一帧视频成功解码的事件。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

linphone_call_init_media_streams(call);

调用：

void linphone_call_init_video_stream(LinphoneCall *call)

调用：

video_stream_set_event_callback(call->videostream,video_stream_event_cb, call);

调用：

#ifdef VIDEO_ENABLED
static void video_stream_event_cb(void *user_pointer, const MSFilter *f, const unsigned int event_id, const void *args){
    LinphoneCall* call = (LinphoneCall*) user_pointer;
    switch (event_id) {
        case MS_VIDEO_DECODER_DECODING_ERRORS:
            ms_warning("MS_VIDEO_DECODER_DECODING_ERRORS");
            if (call->videostream && (video_stream_is_decoding_error_to_be_reported(call->videostream, 5000) == TRUE)) {
                video_stream_decoding_error_reported(call->videostream);
                linphone_call_send_vfu_request(call);
            }
            break;
        case MS_VIDEO_DECODER_RECOVERED_FROM_ERRORS:
            ms_message("MS_VIDEO_DECODER_RECOVERED_FROM_ERRORS");
            if (call->videostream) {
                video_stream_decoding_error_recovered(call->videostream);
            }
            break;
        case MS_VIDEO_DECODER_FIRST_IMAGE_DECODED:
            ms_message("First video frame decoded successfully");
            if (call->nextVideoFrameDecoded._func != NULL)
                call->nextVideoFrameDecoded._func(call, call->nextVideoFrameDecoded._user_data);
            break;
        case MS_VIDEO_DECODER_SEND_PLI:
        case MS_VIDEO_DECODER_SEND_SLI:
        case MS_VIDEO_DECODER_SEND_RPSI:
            /* Handled internally by mediastreamer2. */
            break;
        default:
            ms_warning("Unhandled event %i", event_id);
            break;
    }
}
#endif