August 2020 - ffmpeg-user - lists.ffmpeg.org

libx265 a lot slower
by Cecil Westerhof 20 Aug '20

20 Aug '20

I heard a lot that you should libx265 instead of libx264. I did not, because at some places that went wrong. (I think uploading. But it is several years ago, so I am not sure.) I am again playing with ffmpeg and creating new scripts. When using libx265 the file size is about a third smaller, but it takes about 2.5 to 3 times longer to generate the file. Is this normal, or a quirk at my side? For the moment I stay with libx264. -- Cecil Westerhof Senior Software Engineer LinkedIn: http://www.linkedin.com/in/cecilwesterhof

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DELETE segments not working for HLS Push
by KRISHNAKUMAR N K 20 Aug '20

20 Aug '20

Hi Guys I am trying to push HLS chunks to an apache webdav server. The PUT/DELETE is working as expected when i use http, but DELETE is NOT working using *https, *however PUT works fine though HTTPS. I am getting the following error msg from the console. Let me know if I am missing something. *Error Log:* *[hls muxer @ 0x5268480] failed to delete old segment https://www@mail.com:test123@example.com:8043/hlstest/media_500k_004.ts <http://est123@example.com:8043/hlstest/media_500k_004.ts>: No such file or directory* *Console Logs:** https://pastebin.com/n4U2Jw76 <https://pastebin.com/n4U2Jw76>* *FFMPEG Command:* *ffmpeg -i "udp://230.1.1.2:11000?fifo_size=5000000&overrun_nonfatal=1 <http://230.1.1.2:11000?fifo_size=5000000&overrun_nonfatal=1>" -filter_complex [i:0x20c]yadif,setdar=640/360[v0] -f hls -map i:0x2e4 -af aresample=async=1:min_hard_comp=0.100000:first_pts=0 -c:a:0 libfdk_aac -b:a:0 64000 -ar:0 48000 -map [v0] -b:v:0 500000 -maxrate:v:0 500000 -minrate:v:0 500000 -bufsize:v:0 1000000 -s:v:0 640x360 -r:0 25 -sc_threshold 0 -pix_fmt yuv420p -flags +global_header+cgop -c:v:0 libx264 -profile:v:0 baseline -level:v:0 3.0 -preset:v:0 fast -nal-hrd cbr -g 50 -var_stream_map a:0,v:0,name:500k -master_pl_name master.m3u8 -hls_list_size 3 -hls_time 6 -hls_flags "delete_segments+independent_segments+discont_start" -hls_segment_filename https://www@mail.com:test123@example.com:8043/hlstest/media_%v_%03d.ts https://www@mail.com:test123@example.com:8043/hlstest/playlist_%v.m3u8* PS: I also did the same test with the latest ffmpeg from the git, but no luck. Regards *KrishnaKumar * *N K *

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Max keyframe Interval parameter: -g vs. -keyint ? Check in in existing MP4?
by Ben 20 Aug '20

20 Aug '20

As far as I know there are two different possible parameters for the max keyframe interval: -g 30 OR -keyint=30 Whats the difference? Furthermore I wonder how I can check the max keyframe interval for an already existing MP4 (or AVI) video? Ist his possible? how? Ben

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Compression is a lot smaller
by Cecil Westerhof 20 Aug '20

20 Aug '20

Through scripts I use ffmpeg for cutting and compressing videos and sometimes adding a watermark. Nothing fancy, but handy. In the past the original file was between 4 to 13 times bigger as the compressed file. Today I compressed a few files again. The compression was almost non existing to less as three. 454 -> 415 503 -> 230 490 -> 254 462 -> 157 497 -> 197 454 -> 174 Some logging of the worst (the first): nice -n 10 ionice -c3 ffmpeg -y -i 00039.MTS -vcodec libx264 -crf 23 -acodec libmp3lame -preset veryfast 00039.mp4 ffmpeg version 4.1.6-1~deb10u1 Copyright (c) 2000-2020 the FFmpeg developers built with gcc 8 (Debian 8.3.0-6) . . . libavutil 56. 22.100 / 56. 22.100 libavcodec 58. 35.100 / 58. 35.100 libavformat 58. 20.100 / 58. 20.100 libavdevice 58. 5.100 / 58. 5.100 libavfilter 7. 40.101 / 7. 40.101 libavresample 4. 0. 0 / 4. 0. 0 libswscale 5. 3.100 / 5. 3.100 libswresample 3. 3.100 / 3. 3.100 libpostproc 55. 3.100 / 55. 3.100 Input #0, mpegts, from '00039.MTS': Duration: 00:02:49.02, start: 1.040000, bitrate: 22533 kb/s Program 1 Stream #0:0[0x1011]: Video: h264 (High) (HDMV / 0x564D4448), yuv420p(top first), 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 50 tbr, 90k tbn, 50 tbc Stream #0:1[0x1100]: Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz, stereo, fltp, 256 kb/s Stream #0:2[0x1200]: Subtitle: hdmv_pgs_subtitle ([144][0][0][0] / 0x0090), 1920x1080 Stream mapping: Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264)) Stream #0:1 -> #0:1 (ac3 (native) -> mp3 (libmp3lame)) Press [q] to stop, [?] for help [libx264 @ 0x563820eef380] using SAR=1/1 [libx264 @ 0x563820eef380] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX XOP FMA3 BMI1 [libx264 @ 0x563820eef380] profile High, level 4.0 [libx264 @ 0x563820eef380] 264 - core 155 r2917 0a84d98 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - http://www.videolan.org/x264.html - options: cabac=1 ref=1 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=2 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=6 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=1 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=10 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00 Output #0, mp4, to '00039.mp4': Metadata: encoder : Lavf58.20.100 Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 25 fps, 12800 tbn, 25 tbc Metadata: encoder : Lavc58.35.100 libx264 Side data: cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1 Stream #0:1: Audio: mp3 (libmp3lame) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp Metadata: encoder : Lavc58.35.100 libmp3lame . . . video:421739kB audio:2642kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.027043% [libx264 @ 0x563820eef380] frame I:23 Avg QP:24.52 size:417042 [libx264 @ 0x563820eef380] frame P:1621 Avg QP:26.67 size:165193 [libx264 @ 0x563820eef380] frame B:2581 Avg QP:30.40 size: 59857 [libx264 @ 0x563820eef380] consecutive B-frames: 8.0% 29.4% 6.3% 56.2% [libx264 @ 0x563820eef380] mb I I16..4: 3.2% 19.9% 76.8% [libx264 @ 0x563820eef380] mb P I16..4: 1.1% 5.9% 3.6% P16..4: 45.3% 16.5% 19.4% 0.0% 0.0% skip: 8.3% [libx264 @ 0x563820eef380] mb B I16..4: 0.2% 0.8% 0.1% B16..8: 20.0% 9.5% 3.8% direct:24.2% skip:41.5% L0:20.1% L1:34.8% BI:45.1% [libx264 @ 0x563820eef380] 8x8 transform intra:54.1% inter:41.3% [libx264 @ 0x563820eef380] coded y,uvDC,uvAC intra: 84.1% 74.6% 39.9% inter: 43.9% 18.0% 3.8% [libx264 @ 0x563820eef380] i16 v,h,dc,p: 38% 29% 21% 12% [libx264 @ 0x563820eef380] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 21% 22% 23% 5% 5% 5% 6% 5% 9% [libx264 @ 0x563820eef380] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 10% 36% 14% 5% 6% 5% 8% 5% 11% [libx264 @ 0x563820eef380] i8c dc,h,v,p: 45% 25% 19% 12% [libx264 @ 0x563820eef380] Weighted P-Frames: Y:5.9% UV:2.7% [libx264 @ 0x563820eef380] kb/s:20443.06 What could be happening here? When I need to provide more information: let me know. -- Cecil Westerhof Senior Software Engineer LinkedIn: http://www.linkedin.com/in/cecilwesterhof

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How to have a secure UDP BroadCast
by hassan shatnawi 19 Aug '20

19 Aug '20

Dears, How to have a secure connection with username and password while broadcasting "UPD" I've use this command ffmpeg -f dshow -video_size 1280x720 -rtbufsize 702000K -framerate 30 -i video="Video (00-0 Pro Capture Quad HDMI)" -r 30 -threads 4 -vcodec libx264 -crf 0 -preset ultrafast -f mpegts "udp://username:password@192.168.1.12:6666" but it didn't work can you advice me plz. Thanks in advance. *Hassan Shatnawi* Software Developer *Software Development Department* *Haupshy Establishment for Electronics* Al Madina Al Monawara St. bld 31 | P.O.Box 6875 Amman 11118, Jordan. *T: *+962 6 5820 927* | F: *+962 6 5820 926* | M: *+962 78 5792 096 *E*: hassan(a)haupshy.com *|* www.haupshy.com

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UDP NVENC HEVC transcoding
by Leonardo Pagotto 19 Aug '20

19 Aug '20

Hello! I'm transcoding/resizing some UDP live streams using CUVID and NVENC. It works but I got the feeling could be better, this is the my command line: ffmpeg -vsync 0 -hwaccel cuvid -c:v h264_cuvid -resize 1280x720 -drop_second_field 1 -i udp:// 230.8.0.7:10008?buffer_size=3000000?fifo_size=1000000&overrun_nonfatal=1 -crf 30 -c:a -c:v hevc_nvenc -profile:v main -pass 2 -rc vbr -maxrate 3M -f mpegts udp://239.210.210.7:1234?pkt_size=1316&localaddr=10.10.71.55 I'd like to ask for some expert advice on what could be added or suppressed to improve it. Thanks!! LP

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Unable to use hardware encoder h264_rkmpp with software decoded ATSC OTA transmission using rk
by Brad Bruggemann 17 Aug '20

17 Aug '20

When attempting to hardware encode to h264 using the Rockchip MPP encoder h264_rkmpp from an ATSC source, FFMPEG errors out with: "Impossible to convert between the formats supported by the filter 'Parsed_null_0' and the filter 'auto_scaler_0'" The sample file used in this example can be downloaded here: https://transfer.sh/BRMej/out.ts The full command used and resulting output is as follows: $ ffmpeg -loglevel 48 -c:v mpeg2video -f mpegts -i out.ts -f mp4 -c:v h264_rkmpp -c:a libfdk_aac -preset ultrafast -mbd rd -copyinkf -flags +ilme+ildct -fflags +genpts out.mp4 -y ffmpeg version 589de66a0b Copyright (c) 2000-2018 the FFmpeg developers built with gcc 9.3.0 (GCC) configuration: --prefix=/usr/local --extra-libs='-lpthread -lm' --enable-hardcoded-tables --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-rkmpp --enable-version3 --enable-libdrm --enable-libx265 --enable-nonfree libavutil 56. 14.100 / 56. 14.100 libavcodec 58. 18.100 / 58. 18.100 libavformat 58. 12.100 / 58. 12.100 libavdevice 58. 3.100 / 58. 3.100 libavfilter 7. 16.100 / 7. 16.100 libswscale 5. 1.100 / 5. 1.100 libswresample 3. 1.100 / 3. 1.100 libpostproc 55. 1.100 / 55. 1.100 Splitting the commandline. Reading option '-loglevel' ... matched as option 'loglevel' (set logging level) with argument '48'. Reading option '-c:v' ... matched as option 'c' (codec name) with argument 'mpeg2video'. Reading option '-f' ... matched as option 'f' (force format) with argument 'mpegts'. Reading option '-i' ... matched as input url with argument 'out.ts'. Reading option '-f' ... matched as option 'f' (force format) with argument 'mp4'. Reading option '-c:v' ... matched as option 'c' (codec name) with argument 'h264_rkmpp'. Reading option '-c:a' ... matched as option 'c' (codec name) with argument 'libfdk_aac'. Reading option '-preset' ... matched as AVOption 'preset' with argument 'ultrafast'. Reading option '-mbd' ... matched as AVOption 'mbd' with argument 'rd'. Reading option '-copyinkf' ... matched as option 'copyinkf' (copy initial non-keyframes) with argument '1'. Reading option '-flags' ... matched as AVOption 'flags' with argument '+ilme+ildct'. Reading option '-fflags' ... matched as AVOption 'fflags' with argument '+genpts'. Reading option 'out.mp4' ... matched as output url. Reading option '-y' ... matched as option 'y' (overwrite output files) with argument '1'. Finished splitting the commandline. Parsing a group of options: global . Applying option loglevel (set logging level) with argument 48. Applying option y (overwrite output files) with argument 1. Successfully parsed a group of options. Parsing a group of options: input url out.ts. Applying option c:v (codec name) with argument mpeg2video. Applying option f (force format) with argument mpegts. Successfully parsed a group of options. Opening an input file: out.ts. [mpegts @ 0xaaab03c8df20] Opening 'out.ts' for reading [file @ 0xaaab03c8e820] Setting default whitelist 'file,crypto' [mpegts @ 0xaaab03c8df20] Before avformat_find_stream_info() pos: 0 bytes read:5013504 seeks:1 nb_streams:0 [mpegts @ 0xaaab03c8df20] stream=0 stream_type=0 pid=31 prog_reg_desc= [mpegts @ 0xaaab03c8df20] probing stream 0 pp:2500 [mpegts @ 0xaaab03c8df20] Probe with size=204749, packets=1 detected mpegvideo with score=25 [mpegts @ 0xaaab03c8df20] probed stream 0 [mpegts @ 0xaaab03c8df20] stream=1 stream_type=0 pid=34 prog_reg_desc= [mpeg2video @ 0xaaab03cab640] Format yuv420p chosen by get_format(). [mpegts @ 0xaaab03c8df20] probing stream 1 pp:2500 [mpegts @ 0xaaab03c8df20] Probe with size=7680, packets=1 detected ac3 with score=25 [mpegts @ 0xaaab03c8df20] probed stream 1 [mpegts @ 0xaaab03c8df20] max_analyze_duration 5000000 reached at 5005000 microseconds st:0 [mpegts @ 0xaaab03c8df20] PES packet size mismatch [mpegts @ 0xaaab03c8df20] After avformat_find_stream_info() pos: 0 bytes read:9195664 seeks:3 frames:306 Input #0, mpegts, from 'out.ts': Duration: 00:00:18.42, start: 29234.532200, bitrate: 5406 kb/s Stream #0:0[0x31], 152, 1/90000: Video: mpeg2video (Main), 1 reference frame, yuv420p(yuv420p) (tv, bt709, top first, left), 1920x1080 [SAR 1:1 DAR 16:9], 0/1, Closed Captions, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc Stream #0:1[0x34], 154, 1/90000: Audio: ac3, 48000 Hz, 5.1(side), fltp, 384 kb/s Successfully opened the file. Parsing a group of options: output url out.mp4. Applying option f (force format) with argument mp4. Applying option c:v (codec name) with argument h264_rkmpp. Applying option c:a (codec name) with argument libfdk_aac. Applying option copyinkf (copy initial non-keyframes) with argument 1. Successfully parsed a group of options. Opening an output file: out.mp4. Codec AVOption preset (Set the encoding preset (cf. x264 --fullhelp)) specified for output file #0 (out.mp4) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream. [file @ 0xaaab03cadfd0] Setting default whitelist 'file,crypto' Successfully opened the file. detected 4 logical cores Stream mapping: Stream #0:0 -> #0:0 (mpeg2video (native) -> h264 (h264_rkmpp)) Stream #0:1 -> #0:1 (ac3 (native) -> aac (libfdk_aac)) Press [q] to stop, [?] for help cur_dts is invalid (this is harmless if it occurs once at the start per stream) [mpeg2video @ 0xaaab03caf190] Format yuv420p chosen by get_format(). cur_dts is invalid (this is harmless if it occurs once at the start per stream) [mpeg2video @ 0xaaab03caf190] Skipping B slice due to open GOP Last message repeated 67 times cur_dts is invalid (this is harmless if it occurs once at the start per stream) [mpeg2video @ 0xaaab03caf190] Skipping B slice due to open GOP Last message repeated 67 times cur_dts is invalid (this is harmless if it occurs once at the start per stream) [graph 0 input from stream 0:0 @ 0xaaab03fa2030] Setting 'video_size' to value '1920x1080' [graph 0 input from stream 0:0 @ 0xaaab03fa2030] Setting 'pix_fmt' to value '0' [graph 0 input from stream 0:0 @ 0xaaab03fa2030] Setting 'time_base' to value '1/90000' [graph 0 input from stream 0:0 @ 0xaaab03fa2030] Setting 'pixel_aspect' to value '1/1' [graph 0 input from stream 0:0 @ 0xaaab03fa2030] Setting 'sws_param' to value 'flags=2' [graph 0 input from stream 0:0 @ 0xaaab03fa2030] Setting 'frame_rate' to value '30000/1001' [graph 0 input from stream 0:0 @ 0xaaab03fa2030] w:1920 h:1080 pixfmt:yuv420p tb:1/90000 fr:30000/1001 sar:1/1 sws_param:flags=2 [format @ 0xaaab03d12a00] Setting 'pix_fmts' to value 'drm_prime' [auto_scaler_0 @ 0xaaab03cedac0] Setting 'flags' to value 'bicubic' [auto_scaler_0 @ 0xaaab03cedac0] w:iw h:ih flags:'bicubic' interl:0 [format @ 0xaaab03d12a00] auto-inserting filter 'auto_scaler_0' between the filter 'Parsed_null_0' and the filter 'format' Impossible to convert between the formats supported by the filter 'Parsed_null_0' and the filter 'auto_scaler_0' Error reinitializing filters! Failed to inject frame into filter network: Function not implemented Error while processing the decoded data for stream #0:0 [AVIOContext @ 0xaaab03d0a4c0] Statistics: 0 seeks, 0 writeouts [AVIOContext @ 0xaaab03c968f0] Statistics: 9556112 bytes read, 3 seeks Conversion failed!

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HTTPS support for proxy
by Pan_1337 17 Aug '20

17 Aug '20

Hello, I really need the ability to use http_proxy from CLI. The environment variable prevents me from being constrained when quickly changed for multiple connections.

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When cutting part of video I get a silence part before it
by Cecil Westerhof 17 Aug '20

17 Aug '20

In the past I had sometimes the following strange problem. When cutting a part out of a video with: ffmpeg -y \ -ss "${startSeconds}" \ -i "${INPUT_FILE}" \ -to "$((stopSeconds - startSeconds))" \ -acodec copy \ -vcodec copy \ -async 1 \ "${OUTPUT_FILE}" sometimes before the selected video was put something extra that was silent and had a negative time index. At a certain point I found out that it had to do when compressing the file with: ffmpeg -y \ -i "${_inputfile}" \ -vcodec libx264 \ -crf 23 \ -acodec libmp3lame \ -preset veryfast \ "${_outputfile}" The reason that I did this was that the original file was between four to thirteen times bigger, without me seeing a quality loss. Most of the times I did not have this problem, but sometimes I did. When first cutting the video and then compressing it I did not have this problem. Sadly the problem emerged again. :'-( I have to publish recordings of a Zoom meeting. They are very small (not even 10 MB pro minute) and I got the same problem. I have to generate some logging (I use ffmpeg through bash and tcl scripts), but was wondering if somebody knows what could generate this kind of problems and what to do about it. I will later on share some logging. -- Cecil Westerhof Senior Software Engineer LinkedIn: http://www.linkedin.com/in/cecilwesterhof

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Putting in a picture half-way through the video
by Cecil Westerhof 17 Aug '20

17 Aug '20

I have to publish the video's from our Zoom meetings. Something went wrong. Halfway a recording the recording went from the speaker to the overview screen. I like to change the part of the video with the overview screen (people do not know they are being recorded and not everything is very flattering) with a static picture. Is this doable? (Without to much work.) -- Cecil Westerhof Senior Software Engineer LinkedIn: http://www.linkedin.com/in/cecilwesterhof

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