Here is how I test the seg format: Shift-P | Recording FFMPEG: seg Audio wrench: mkv_lpcm.seg Video wrench: mpeg2sd422p_mkv.seg r(ecord) Path:/home/terje/Videos/Record_mpeg2sd422p_%02d.mkv Start record .......... Stop record Then the following segment files are stored du -sh Record* 7,5M Record_mpeg2sd422p_00.mkv 7,3M Record_mpeg2sd422p_01.mkv 7,3M Record_mpeg2sd422p_02.mkv 8,2M Record_mpeg2sd422p_03.mkv 7,3M Record_mpeg2sd422p_04.mkv 7,3M Record_mpeg2sd422p_05.mkv 8,2M Record_mpeg2sd422p_06.mkv 7,3M Record_mpeg2sd422p_07.mkv .......... ffprobe -hide_banner Record_mpeg2sd422p_00.mkv Input #0, matroska,webm, from 'Record_mpeg2sd422p_00.mkv': Metadata: ENCODER : Lavf61.1.100 Duration: 00:00:02.31, start: 0.020000, bitrate: 26865 kb/s Stream #0:0: Video: mpeg2video (4:2:2), yuv422p(tv, bt709/unknown/unknown, progressive), 720x576 [SAR 1:1 DAR 5:4], 50 fps, 50 tbr, 1k tbn Metadata: DURATION : 00:00:02.180000000 Side data: cpb: bitrate max/min/avg: 30000000/0/0 buffer size: 25001984 vbv_delay: N/A Stream #0:1(eng): Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/s Metadata: DURATION : 00:00:02.311000000 The video and audio duration is not exactly identical I am not sure that changing the segment time in the presets work correctly, because at least in my test the file sizes didn't change much(?) On 20.06.2025 20:49, Phyllis Smith wrote:
Successfully used both of these new render formats: mpeg2sd422p.mkv and mpeg2sd422p.m2ts. But I have not found a good/clean way to use any of the xxxx.seg formats yet which can be easily documented and used so holding off on those still. Thanks, Terje (and Andrew).
On Sun, Jun 15, 2025 at 5:06 AM Terje J. Hanssen via Cin <[email protected]> wrote:
Attach the mkv (draft) presetg versions:
cat mpeg2sd422p.mkv matroska mpeg2video cin_pix_fmt=yuv422p b=30M muxrate=35M minrate=30M maxrate=30M bufsize=25M profile=422p
cat mpeg2sd422p_mkv.seg segment mpeg2video segment_format=matroska segment_time=00:10 <= your segment time reset_timestamps=1 cin_pix_fmt=yuv422p b=30M muxrate=35M minrate=30M maxrate=30M bufsize=25M profile=422p
cat mkv_lpcm.seg segment pcm_s16le segment_format=matroska segment_time=00:10 <= your segment time reset_timestamps=1 id 0x1100
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ffprobe -hide_banner cgg_mpeg2sd422p.mkv Input #0, matroska,webm, from 'cgg_mpeg2sd422p.mkv': Metadata: ENCODER : Lavf61.1.100 Duration: 00:00:09.84, start: 0.000000, bitrate: 30898 kb/s Stream #0:0: Video: mpeg2video (4:2:2), yuv422p(tv, bt709/unknown/unknown, progressive), 720x576 [SAR 1:1 DAR 5:4], 50 fps, 50 tbr, 1k tbn Metadata: DURATION : 00:00:09.840000000 Side data: cpb: bitrate max/min/avg: 30000000/0/0 buffer size: 25001984 vbv_delay: N/A Stream #0:1(eng): Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/s Metadata: DURATION : 00:00:09.791000000
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ffprobe -hide_banner cgg_mpeg2sd422p_03.mkv Input #0, matroska,webm, from 'cgg_mpeg2sd422p_03.mkv': Metadata: ENCODER : Lavf61.1.100 Duration: 00:00:08.18, start: 6.010000, bitrate: 8025 kb/s Stream #0:0: Video: mpeg2video (4:2:2), yuv422p(tv, bt709/unknown/unknown, progressive), 720x576 [SAR 1:1 DAR 5:4], 50 fps, 50 tbr, 1k tbn Metadata: DURATION : 00:00:08.180000000 Side data: cpb: bitrate max/min/avg: 30000000/0/0 buffer size: 25001984 vbv_delay: N/A Stream #0:1(eng): Audio: mp2, 48000 Hz, stereo, s16p, 384 kb/s Metadata: DURATION : 00:00:08.180000000
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