>> I wouldn’t know if this is an ffmpeg or Quicktime 7 issue, but I am >> encountering playback stutter on Quicktime 7 when playing back photo-jpeg >> encoded files. I don’t encounter this issue in Quicktime X or with other >> players. I only bring this up so I can verify that I am not missing >> anything. I am using the following example: >> >> ffmpeg -i moviefile.mov -c:v mjpeg -pix_fmt yuv420p output.mov >> >> How would you recommend I further diagnose this issue?
> please post the complete/unedited command output to the list (see > https://ffmpeg.org/mailing-list-faq.html) I have attached my command line. Again these files only stutter in Quicktime 7. Should this be a QT7 issue, then fine, but I would like to know any possibility that would cause this. Thanks User-MacBook-Pro-2:~ User$ ffmpeg -i /Users/User/Documents/Media/1/FF8_SMALL.mov -vf "scale=720x480" -c:v mjpeg -pix_fmt yuvj420p output.mov ffmpeg version N-101101-gc0d0b1c4f6-tessus https://evermeet.cx/ffmpeg/ <https://evermeet.cx/ffmpeg/> Copyright (c) 2000-2021 the FFmpeg developers built with Apple clang version 11.0.0 (clang-1100.0.33.17) configuration: --cc=/usr/bin/clang --prefix=/opt/ffmpeg --extra-version=tessus --enable-avisynth --enable-fontconfig --enable-gpl --enable-libaom --enable-libass --enable-libbluray --enable-libdav1d --enable-libfreetype --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libmysofa --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvmaf --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-libzmq --enable-libzvbi --enable-version3 --pkg-config-flags=--static --disable-ffplay libavutil 56. 65.100 / 56. 65.100 libavcodec 58.123.100 / 58.123.100 libavformat 58. 67.100 / 58. 67.100 libavdevice 58. 12.100 / 58. 12.100 libavfilter 7.106.100 / 7.106.100 libswscale 5. 8.100 / 5. 8.100 libswresample 3. 8.100 / 3. 8.100 libpostproc 55. 8.100 / 55. 8.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/Users/User/Documents/Media/1/FF8_SMALL.mov': Metadata: major_brand : qt minor_version : 512 compatible_brands: qt encoder : Lavf58.67.100 Duration: 00:00:30.03, start: 0.000000, bitrate: 36139 kb/s Stream #0:0(eng): Video: dnxhd (DNXHD) (AVdn / 0x6E645641), yuv422p(tv, bt709/unknown/unknown), 1920x1080, 36139 kb/s, SAR 1:1 DAR 16:9, 23.98 fps, 23.98 tbr, 23976 tbn, 23976 tbc (default) Metadata: handler_name : Apple Video Media Handler vendor_id : FFMP encoder : DNxHD 709 timecode : 00:00:00:00 Stream #0:1(eng): Data: none (tmcd / 0x64636D74), 0 kb/s Metadata: handler_name : Apple Video Media Handler timecode : 00:00:00:00 File 'output.mov' already exists. Overwrite? [y/N] y Stream mapping: Stream #0:0 -> #0:0 (dnxhd (native) -> mjpeg (native)) Press [q] to stop, [?] for help [swscaler @ 0x7fcb1f4d6000] deprecated pixel format used, make sure you did set range correctly Output #0, mov, to 'output.mov': Metadata: major_brand : qt minor_version : 512 compatible_brands: qt encoder : Lavf58.67.100 Stream #0:0(eng): Video: mjpeg (jpeg / 0x6765706A), yuvj420p(pc, bt709/unknown/unknown, progressive), 720x480 [SAR 32:27 DAR 16:9], q=2-31, 200 kb/s, 0.04 fps, 11988 tbn (default) Metadata: handler_name : Apple Video Media Handler vendor_id : FFMP timecode : 00:00:00:00 encoder : Lavc58.123.100 mjpeg Side data: cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: N/A frame= 720 fps=226 q=24.8 Lsize= 7871kB time=00:00:29.98 bitrate=2150.2kbits/s speed=9.43x video:7867kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.055005% _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
