H.264 (h264) video file production

First, ready to work 1. Download and install Youku client 2. Download the FFMPEG executable, decompress us, do not need to download the source code yourself compile. FFMPEG executable Download link: http://download.csdn.net/detail/caoshangpa/9492758 Second, use Youku client to download video and transfer Download a video with Youku client, then transfer to MP4 format, Youku client self-with transcription function, as shown below. Click the "Transcode" button to pop up the New Transcoding dialog box, as shown below, in the dialog box, you can perform video formats and path settings. Although I downloaded in the figure, I downloaded a video of MP4 format, but the default resolution does not meet my requirements, so it is necessary to transfer. After the setting is complete, click the "Start Transcode" button, the transfer code begins, as shown below. The transfer is shown in the following figure. Third, use FFMPEG to extract H264 nude flow 1. Copy the transferred video to the bin directory of FFMPEG and rename 800_600.mp4, the name does not use Chinese, as shown in the following figure. 2. Open the command prompt window, CD to E: \ ffmpeg \ bin, then call FFMPEG.EXE to start extracting bare stream, as shown below. Naked flow extraction instructions: Command line: ffmpeg -i 800_600.mp4 -codec copy -bsf: h264_mp4toannexb -f h264 800_600.264 Description: -i 800_600.mp4: Yes Enter MP4 file - CODEC COPY: Copy -BSF: H264_MP4ToanNexb from MP4 Package Copy from MP4 to Annexb package - F h264: H.264 format 800_600.264: Output file name Youku transcoded MP4 format video can extract H264 bare stream because MP4 is just a container, and the encoded format of the video encapsulated can be MPEG-4 or H264, while Youku transcoded MP4 video is just encoded with H264. of. After the extraction is successful, the corresponding .264 file is made in the E: \ FFMPEG \ bin directory, as shown below. 3. Open the 800_600.264 file with Ultraledit or other text editor, as shown below. Familiar with children's shoes in the H264 file format, according to the 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0000.- If you want to test whether the bare stream is played, drag it directly to Youku client. I extracted the bare flow download link: http://download.csdn.net/detail/caoshangpa/9492803

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