FFmpeg-Application

Just some small application for testing FFMPEG

• FlashVedioPlayer: Show streaming in web page
• Vedio2RTMP: Upstreaming a local flv file according to RTMP protocol
• WebCam2RTMP: Get image from webcam and upstreaming according to RTMP protocol
• Audio2RTMP: Get audio from microphone and upstreaming according to RTMP protocol
• MultiMedia2RTMP: Upstreaming video and audio simultaneously and finish synchronized

Environment

• OS: Win10
• Compiler: Visual studio 2017
• FFmpeg: 4.3.1 (2020-10-01 release)

FlashVedioPlayer

• Show streaming in web page
  • Apply swfs/StrobeMediaPlayback.swf provide by Adobe
  • pluginspage='http://www.adobe.com/go/getflashplayer'
  • flashvars='&src=rtmp://127.0.0.1:443/live/home&autoHideControlBar=true&streamType=live&autoPlay=true&verbose=true'

Vedio2RTMP

Upstreaming a local flv file according to RTMP protocol and show the streaming in web page

Implement the following function

• Get information from input file
  • Open an input stream and read the header
  • Read packets of a media file to get stream information
• Muxing
  • Allocate an AVFormatContext for an output format
  • Add a new stream to a media file
  • Copy paramter from codec
• Codec
  • avcodec_find_encoder: Find a registered encoder with a matching codec ID.
  • Encode
• RTMP IO
  • Create and initialize a AVIOContext for accessing the resource indicated by url
  • Allocate the stream private data and write the stream header to an output media file
  • pts to dts transformation and speed control
  • Write a packet to an output media file ensuring correct interleaving

Result

Webcam2RTMP

Get image from webcam with opencv and upstreaming according to RTMP protocol

Implement the following function

• Open camera
  • cv::VedioCapture
• RGB to YUV
  • Init swsContext
  • Init struct of yuv data
  • Config to yuv
  • Allocate buffur for yuv
• Codec
  • Find Codec
  • Create context for codec
  • Config parameter for codec
  • Open codec context
  • Encode
• Muxing
  • Create IO context
  • Add vedio stream
  • Copy paramter from codec
• RTMP IO
  • Open RTMP network IO
  • Write the stream header to an output media file

Audio2RTMP

Get audio from microphone with Qt and upstreaming according to RTMP protocol

Implement the following function

• Record audio
• Audio resample
  • Init context for resample
  • Audio ouput allocate
  • Resample
• Codec
  • Init audio codec
  • Int context for codec
  • Config audio context
  • Open audio codec
  • pts calculation
  • Encode
• Muxing
  • Init Context
  • Add a new stream to a media file.
  • Copy parameter from codec
• RTMP IO
  • Open rtmp IO
  • Allocate the stream private data and write the stream header to an output media file
  • Upstreaming

MultiMedia2RTMP

Implement AudioRecord, VideoCapture, MediaEncode Factory and RTMP module. Upstreaming video and audio simultaneously and finish synchronized.

• AudioRecord Factory
  • Finish a concrete factory with Qt
• VideoCapture Factory
  • Finish a concrete factory with opencv
• MediaEncode Factory
  • Finish a concrete factory with FFMPEG
• RTMP module
  • Implement muxing and rtmp function with FFMPEG