ffmpeg dll

FFMPEG Summary (1) ---- download and compile, ffmpeg Summary I recently started to study FFMPEG. I have debugged FFMPEG before, but I have not recorded it. There are many articles on ffmpeg on the forum. I want to record my work. The first step begins with compilation. I.

Php uses the FFmpeg interface to obtain the video playback duration, bit rate, thumbnail, and creation time. The ffmpeg Creation Time FFmpeg is a video plug-in. We can call the FFmpeg interface to obtain video information, including video playback duration, video bit rate, video thumbnails, and video creation time, thi

#yum Groupinstall "Development tools" #cd/etc/yum.repos.d/#cp-PRV. /yum.repos.d{,.orig} #vim dag.repo#cat Dag.repo [Dag]name=dag RPM Repository for Red Hat Enterprise LINUXBA seurl=http://apt.sw.be/redhat/el$releasever/en/$basearch/daggpgcheck=1gpgkey=http://dag.wieers.com/packages/ Rpm-gpg-key.dag.txtenabled=1protect=0#wget Http://dag.wieers.com/packages/RPM-GPG-KEY.dag.txt-P/tmp#rpm--import /tmp/rpm-gpg-key.dag.txt#yum Repolist#yum Install ffmpeg-de

Transferred from: http://www.cnblogs.com/dwdxdy/p/3625766.htmlSince FFmpeg is an open source project based on Linux, the source code is incompatible with the C + + compiler provided by the most common Visual Studio under Windows, so it cannot be compiled with msvc++ and requires a Linux-like build environment under Windows. This article mainly records the process of FFmpeg compilation under Windows.1. Resou

FFmpeg Video and timestamp watermarkThe project needs to add a timestamp to the video, which is of course the best way to ffmpeg. Before finding the right approach, the answer timecode the Internet (water is not light, 2 days here), presumably this is written:Ffmpeg-i wildlife.wmv-vf "drawtext=fontfile=arial.ttf:text= ' fuck ': timecode= ' 09\:57\:00\:00 ': r=25: \x= ( W-TW)/1.5:y=h-(20*LH): fontcolor=white

Ffmpeg encoding, ffmpeg 1. register all container formats and CODEC: av_register_all ()2. open the file: av_open_input_file ()3. Extract stream information from the file: av_find_stream_info ()4. Search for all the streams in CODEC_TYPE_VIDEO format.5. Find the corresponding decoder: avcodec_find_decoder ()6. Enable the codec: avcodec_open ()7. allocate memory for decoding frames: avcodec_alloc_frame ()8. C

Decrypts the inside story of FFmpeg playback Status Control and decrypts the inside story of ffmpeg playback. In the previous article (http://my.oschina.net/u/2336532/blog/400790), we solved how to deal with the extended data of H264 and AAC in FFmpeg, and restored the starting code of H264 and the ADTS header of AAC according to the NALU length, in this case, pl

, you canhttp://bbs.chinavideo.org/viewthread.php?tid=1897extra=page%3D1 Compiling ffmpeg is a complex process, assuming you want to raise the speed and appreciate the ffmpeg wind, you can skip this step and go directly to the next section. FFmpeg's SDKFFmpeg is a complex project, the first step of compiling, especially the compilation process under Windows, is even more complex. Therefore, th

, you canhttp://bbs.chinavideo.org/viewthread.php?tid=1897extra=page%3D1 Compiling ffmpeg is a complex process, assuming you want to raise the speed and appreciate the ffmpeg wind, you can skip this step and go directly to the next section. FFmpeg's SDKFFmpeg is a complex project, the first step of compiling, especially the compilation process under Windows, is even more complex. Therefore, th

, you canhttp://bbs.chinavideo.org/viewthread.php?tid=1897extra=page%3D1 Compiling ffmpeg is a complex process, assuming you want to raise the speed and appreciate the ffmpeg wind, you can skip this step and go directly to the next section. FFmpeg's SDKFFmpeg is a complex project, the first step of compiling, especially the compilation process under Windows, is even more complex. Therefore, th

, you canhttp://bbs.chinavideo.org/viewthread.php?tid=1897extra=page%3D1 Compiling ffmpeg is a complex process, assuming you want to raise the speed and appreciate the ffmpeg wind, you can skip this step and go directly to the next section. FFmpeg's SDKFFmpeg is a complex project, the first step of compiling, especially the compilation process under Windows, is even more complex. Therefore, th

line. Ffplay: Video playback program. (requires SDL support) Ffserver: Multimedia server After you understand the structure, you will find that if you are looking for a way to convert the video format, that FFmpeg is definitely your first choice, and Libavcodec is the top priority. If the API does not work, refer to Ffmpeg.c, ffplay.c, FFSERVER.C, apiexample.c (decoding), and output_example.c (encoding). To use