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• How to encode downloaded m3u8 video using ffmpeg ?

  8 décembre 2014, par Patrick Alessi

  I have found a lot of guides to download and convert live streams using ffmpeg.
  My problem is that i have downloaded a tv show using the video downloader app for ipad, transfarred the .ts files and m3u8 file to my mac.

  How do I convert it into an mp4 og mkv file using ffmpeg now that the files are located on my local hard drive ?

  I have tried converting each clip with a video converter but they are rendered with gaps, and other problems...

  I need it to play as smooth as on an ipad but on my mac.

  I have no idea how ffmpeg works. I just follow a tutorial to make the installation. and i dont know how to set up virtuel servers...

• How to compile ffmpeg in yocto to get a working binary

  3 novembre 2020, par Dharma B

  In our yocto project,the SDK has default "poky/meta/recipes-multimedia/ffmpeg/ffmpeg_3.3.3.bb" bb file. and this is our bbappend file
meta-qti-bsp/recipes-multimedia/ffmpeg/ffmpeg_%.bbappend

  


      EXTRA_OEMAKE = ""

FILES_${PN} += "/lib/lib*.so.*" FILES_${PN} += "/lib/pkgconfig/*" FILES_${PN}-dev += "/usr/share/*" FILES_${PN}-dev += "/lib/lib*.so"

PACKAGECONFIG = "avdevice avfilter avcodec avformat swresample swscale postproc bzlib gpl theora"

# Support multilib compilation for libav PROVIDES += "${MLPREFIX}libav"

EXTRA_CFLAGS_append += " -fPIC" EXTRA_CFLAGS_append += " ${@ bb.utils.contains('TUNE_FEATURES', 'callconvention-hard', '-mfloat-abi=hard', '', d)}" EXTRA_CFLAGS_append += " ${@ bb.utils.contains('TUNE_FEATURES', 'neon', '-mfpu=neon', '', d)}" EXTRA_CFLAGS_append += " ${@ bb.utils.contains('TUNE_FEATURES', 'armv7a', '-march=armv7-a', '', d)}" EXTRA_CFLAGS_append += " ${@ bb.utils.contains('TUNE_FEATURES', 'cortexa8', '-mtune=cortex-a8', '', d)}"

EXTRA_OECONF_append += " \
    --target-os=linux --sysroot=${STAGING_DIR_TARGET} --arch=${TARGET_ARCH} --disable-mmx \
    --enable-shared --disable-doc --disable-htmlpages --disable-manpages --disable-podpages \
    --disable-txtpages --enable-small --disable-debug --disable-ffserver --disable-ffplay \
    --extra-cflags="${EXTRA_CFLAGS}" --disable-network --disable-zlib \
    --enable-fft --libdir=${base_libdir} --shlibdir=${base_libdir} \
    --enable-muxer=mov --enable-muxer=mp4 --enable-encoders --enable-zlib --enable-encoder=png \
    --prefix=${base_libdir} --incdir=${includedir} \ "

do_install() {
    oe_runmake 'DESTDIR=${D}' install
    # Info dir listing isn't interesting at this point so remove it if it exists.
    if [ -e "${D}${infodir}/dir" ]; then
    rm -f ${D}${infodir}/dir
    fi }  NORMAL


  


  with this I could able to get ffmpeg bin. I pushed it on to the device (vr360 chipset : qcs605).
But when I try to invoke any ffmpeg commands say

  


  ffmpeg -ss 00:00:00 -i "input.mp4"  -t 00:01:00 "out.mp4"


  


  I'm getting this error

  


  


  [NULL @ 0xaf61a380] Unable to find a suitable output format for
'out.mp4' out.mp4 : Invalid argument

  


  


  for all ffmpeg operation related to video/image processing I'm getting the same error.

  


  Is there anything else,do I need to enable ?

  


• Powershell script for ffmpeg mkv—>mp4 remuxing ?

  15 août 2019, par crioxide

  I am interested in writing a Powershell script that calls ffmpeg to remux a series of videos from mkv to mp4 and converts subtitle track 1 of all these files to hard subs. I have never used these CLI programs like this before so this is difficult for me to figure out (I’ve had to resort to doing this task this way after getting frustrated with all the half-assed GUI solutions out there that can’t do the job). Can I get some help please ?

  AND can someone enlighten me how I can learn more about these pieces of software so I don’t have to go begging for solutions online anymore ?