Replies – Forums – Tomás Hernández

Forum Replies Created

Tomás Hernández
August 26, 2012 at 1:39 am in reply to: extracting key frames with ffmpeg

Hi. I actually read your post, and I suggest trying this:
ffmpeg.exe -i “INPUT_VIDEO_FILE.flv or any” -y -f image2 -ss 191 -sameq -t 0.001 -s 126*95 “OUTPUT_FILE_NAME.jpg”
Tomás Hernández
August 26, 2012 at 1:19 am in reply to: FFmpeg batch job to convert strange XDCAM (mp4) files

Hi. There is no strange structure about that. The fact is that corresponds to a XDCAM file footage, where the real video file is 972_1389_01.mp4, and the others are SONY propietary info files, that records metadata concerning the footage.
If you want to convert the file with ffmpeg (for instance if your NLES doesn´t accept mp4) you can try this batch script con windows or bash in linux:
ffmpeg.exe -i “INFUT_FILE_NAME.mp4” -threads 2 -vcodec dvvideo -s 720×576 -r 25.00 -threads 1 -pix_fmt yuv420p -g 300 -qmin 3 -b 2048k -async 1 -g 300 -acodec pcm_s16le -ab 1536k -qscale 10 -aspect 16:9 -y “OUTPUT_FILE_NAME.avi”
Best regards
Tomás Hernández
August 26, 2012 at 1:10 am in reply to: how to use libstagefright for hardware decoding in ffmpeg?

Hi. What do you mean? You want to convert streams or video files?
Tomás Hernández
August 26, 2012 at 1:07 am in reply to: Compiling ffmpeg just to capture single frames

Perhaps I am wrong, but if you are on Windows, download de last ffmpeg version from zeranoe, and try this on the command line:
ffmpeg.exe -i “INPUT_FILE -y -f image2 -ss 20 -sameq -t 0.001 -s 126*95 “OUTPUT_NAME.jpg”