Hi All, I have successfully used ffmpeg command line tool to extract all Iframes(Key frames) from a transport stream and saved to file using the following command
ffmpeg -i ESPN-DISH.ts -f image2 -vf "select=eq(pict_type\,PICT_TYPE_I)" -vsync vfr yi%03d.png For my particular use case, I have to read the frames programatically to extract the I frames and stream the I frames in a UI container. So far I can compile and the following program from this link to extract the YUV filtered images. I found this example easy to modify for my use case. https://github.com/leixiaohua1020/simplest_ffmpeg_video_filter/blob/master/simplest_ffmpeg_video_filter/simplest_ffmpeg_video_filter.cpp But I am having confusion on how to use the select=eq(pict_type\,PICT_TYPE_I) filter in the code. Particularly I can see the following functions to define the filter. AVFilter *buffersrc = avfilter_get_by_name("buffer"); AVFilter *buffersink = avfilter_get_by_name("ffbuffersink"); But couldnt figure out how to tweak the code for extraction of I frames. Please anyone help me to use the functions suitably for filtering the I frames from the video input. Thanks in advance. -- Thank you, warm regards, [image: Logo] Dhanish Vijayan Chief Technical Officer Elementz Engineers Guild Pvt Ltd Email: [email protected] Website: www.elementzonline.in, www.elementzonline.com Mob: +91-8129025513 Off: +91-471-2300804 Elementz Engineers Guild Pvt Ltd TC 25/1655/5, Rema Plaza, SS Kovil Road, Thampanoor, Thiruvananthapuram Kerala - 695001 Phone: 0471-6006699, 3106699, 2329699 Elementz Engineers Guild Pvt Ltd TC 12/78(11), Capital Heights, PMG Plamoodu road, Pattom P. O.,Thiruvananthapuram, Kerala - 695004 Phone: 0471-2300804 Elementz Engineers Guild Pvt Ltd SBC 3, Thejaswini, Technopark Campus, Thiruvananthapuram - 695581 Kerala Phone: 0471-3106622 Elementz Engineers Guild Pvt Ltd No.131, 4th Cross, 2nd main, RHB Colony, Opposite Phoenix Marketcity, Mahadevapura, Bangalore - 560048 Phone: +91-9020616699 Connect with us : [image: FB] <https://www.facebook.com/elementzonline> [image: Twitter] <https://twitter.com/elementzonline> [image: Twitter] <https://www.linkedin.com/company/elementz-engineers-guild-pvt-ltd> Disclaimer: : This message and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. No Liability is attached to the originator or Elementz Engineers Guild Pvt. Ltd. Views or opinions presented in this email is of the author and may not necessarily reflect the opinions of Elementz Engineers Guild Pvt. Ltd. This message contains confidential information. If you have received this e-mail by mistake, please notify the sender immediately by e-mail and delete this e-mail and its contents from your system.
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