Dear all I am seeking for helps with my issue of losing audio streams when receiving signal from Decklink SDI input, on rtmp outout, the audio stream was missing after couple seconds, but I check on SDI then audio was normal.
Below is my command : ffmpeg -format_code Hi59 -video_input sdi -audio_input embedded -channels 2 -f decklink -i DeckLink SDI 4K -filter_complex [0:v]split=2[in1][in2];[in1]scale=1280:-1,format=yuv420p[ out1];[in2]thumbnail,scale=480:270,fps=1/2[out2] -map [out1] -map 0:a -framerate 30 -c:v libx264 -tune zerolatency -crf 20 -preset veryfast -profile:v high422 -aspect 16:9 -r 29.97 -g 60 -vb 2000k -c:a aac -ab 128k -ar 48000 -f flv rtmp://x.x.x.x:1935/live/hou-std1-ff -map [out2] -y -f image2 -update 1 /tmp/thumb/58e8032c9db24f9b35c4bbed.jpg Log: ffmpeg version N-85600-g9ef21a8 Copyright (c) 2000-2017 the FFmpeg developers built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-11) configuration: --prefix=/opt/ffmpeg --extra-cflags='-I$/opt/ffmpeg/include' --extra-ldflags='-L/opt/ffmpeg/lib -ldl' --bindir=/opt/ffmpeg/bin --pkg -config-flags=--static --enable-gpl --enable-nonfree --enable-libfdk_aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-decklink --extra-cflags=-I/root/ffmpeg_source/Blackmagic_DeckLink_ SDK_10.8.6/Linux/includ e --extra-ldflags=-L/root/ffmpeg_source/Blackmagic_ DeckLink_SDK_10.8.6/Linux/include libavutil 55. 61.100 / 55. 61.100 libavcodec 57. 93.100 / 57. 93.100 libavformat 57. 72.101 / 57. 72.101 libavdevice 57. 7.100 / 57. 7.100 libavfilter 6. 85.100 / 6. 85.100 libswscale 4. 7.101 / 4. 7.101 libswresample 2. 8.100 / 2. 8.100 libpostproc 54. 6.100 / 54. 6.100 [decklink @ 0x3d28d80] Found Decklink mode 1920 x 1080 with rate 29.97(i) Guessed Channel Layout for Input Stream #0.0 : stereo Input #0, decklink, from 'DeckLink SDI 4K': Duration: N/A, start: 0.000000, bitrate: 995869 kb/s Stream #0:0: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s Stream #0:1: Video: rawvideo (UYVY / 0x59565955), uyvy422, 1920x1080, 994333 kb/s, 29.97 tbr, 1000k tbn, 1000k tbc Stream mapping: Stream #0:1 (rawvideo) -> split (graph 0) format (graph 0) -> Stream #0:0 (libx264) Stream #0:0 -> #0:1 (pcm_s16le (native) -> aac (native)) fps (graph 0) -> Stream #1:0 (mjpeg) Press [q] to stop, [?] for help [swscaler @ 0x3e403a0] deprecated pixel format used, make sure you did set range correctly [libx264 @ 0x3d43fc0] using SAR=1/1 [libx264 @ 0x3d43fc0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 [libx264 @ 0x3d43fc0] profile High, level 3.1 [libx264 @ 0x3d43fc0] 264 - core 148 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - http://www.videolan.org/x264.html - options: cabac=1 ref=1 deblo ck=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_psk ip=1 chroma_qp_offset=0 threads=8 lookahead_threads=8 sliced_threads=1 slices=8 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bfra mes=0 weightp=1 keyint=60 keyint_min=6 scenecut=40 intra_refresh=0 rc=crf mbtree=0 crf=20.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1 .00 Output #1, image2, to '/tmp/thumb/58e8032c9db24f9b35c4bbed.jpg': Metadata: encoder : Lavf57.72.101 Stream #1:0: Video: mjpeg, yuvj444p(pc), 480x270, q=2-31, 200 kb/s, 0.50 fps, 0.50 tbn, 0.50 tbc Metadata: encoder : Lavc57.93.100 mjpeg Side data: cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1 Output #0, flv, to 'rtmp://x.x.x.x:1935/live/hou-std1-ff': Metadata: encoder : Lavf57.72.101 Stream #0:0: Video: h264 (libx264) ([7][0][0][0] / 0x0007), yuv420p(progressive), 1280x720 [SAR 1:1 DAR 16:9], q=-1--1, 2000 kb/s, 29.97 fps, 1k tbn, 29.97 tbc Metadata: encoder : Lavc57.93.100 libx264 Side data: cpb: bitrate max/min/avg: 0/0/2000000 buffer size: 0 vbv_delay: -1 Stream #0:1: Audio: aac (LC) ([10][0][0][0] / 0x000A), 48000 Hz, stereo, fltp, 128 kb/s Metadata: encoder : Lavc57.93.100 aac frame= 3 fps=0.0 q=24.0 q=0.0 size= 119kB time=00:00:00.06 bitrate=14334.2kbits/s speed=0.125x frame= 12 fps= 11 q=23.0 q=0.0 size= 236kB time=00:00:00.36 bitrate=5261.7kbits/s speed=0.346x frame= 21 fps= 13 q=23.0 q=0.0 size= 359kB time=00:00:00.66 bitrate=4397.1kbits/s speed=0.423x frame= 30 fps= 14 q=23.0 q=0.0 size= 482kB time=00:00:00.96 bitrate=4071.3kbits/s speed=0.463x frame= 39 fps= 15 q=23.0 q=0.0 size= 606kB time=00:00:01.26 bitrate=3910.9kbits/s speed=0.486x frame= 48 fps= 15 q=23.0 q=0.0 size= 746kB time=00:00:01.56 bitrate=3893.9kbits/s speed=0.503x frame= 57 fps= 16 q=23.0 q=0.0 size= 873kB time=00:00:01.87 bitrate=3823.7kbits/s speed=0.515x frame= 65 fps= 16 q=23.0 q=0.0 size= 1035kB time=00:00:02.13 bitrate=3969.0kbits/s speed=0.515x frame= 74 fps= 16 q=23.0 q=0.0 size= 1164kB time=00:00:02.43 bitrate=3913.1kbits/s speed=0.523x frame= 83 fps= 16 q=23.0 q=0.0 size= 1297kB time=00:00:02.73 bitrate=3881.8kbits/s speed=0.529x frame= 92 fps= 16 q=23.0 q=0.0 size= 1423kB time=00:00:03.03 bitrate=3838.6kbits/s speed=0.534x [Parsed_thumbnail_3 @ 0x3d4fa20] frame id #64 (pts_time=2.135466) selected from a set of 100 images frame= 101 fps= 16 q=23.0 q=0.0 size= 1547kB time=00:00:03.33 bitrate=3795.7kbits/s speed=0.537x frame= 111 fps= 17 q=23.0 q=0.0 size= 1687kB time=00:00:03.67 bitrate=3765.5kbits/s speed=0.547x frame= 120 fps= 17 q=23.0 q=0.0 size= 1817kB time=00:00:03.97 bitrate=3747.9kbits/s speed=0.548x frame= 129 fps= 17 q=23.0 q=0.0 size= 2007kB time=00:00:04.27 bitrate=3848.1kbits/s speed=0.548x frame= 139 fps= 17 q=23.0 q=0.0 size= 2149kB time=00:00:04.60 bitrate=3821.4kbits/s speed=0.552x frame= 149 fps= 17 q=23.0 q=0.0 size= 2273kB time=00:00:04.93 bitrate=3770.0kbits/s speed=0.558x frame= 158 fps= 17 q=23.0 q=0.0 size= 2426kB time=00:00:05.24 bitrate=3792.0kbits/s speed=0.558x frame= 168 fps= 17 q=23.0 q=0.0 size= 2541kB time=00:00:05.57 bitrate=3734.5kbits/s speed=0.564x frame= 177 fps= 17 q=23.0 q=0.0 size= 2683kB time=00:00:05.87 bitrate=3741.5kbits/s speed=0.563x frame= 186 fps= 17 q=23.0 q=0.0 size= 2872kB time=00:00:06.17 bitrate=3810.5kbits/s speed=0.565x frame= 196 fps= 17 q=23.0 q=0.0 size= 3011kB time=00:00:06.50 bitrate=3789.9kbits/s speed=0.567x [Parsed_thumbnail_3 @ 0x3d4fa20] frame id #56 (pts_time=5.205200) selected from a set of 100 images frame= 205 fps= 17 q=23.0 q=1.6 size= 3133kB time=00:00:06.80 bitrate=3770.0kbits/s dup=1 drop=0 speed=0.568x frame= 215 fps= 17 q=23.0 q=1.6 size= 3273kB time=00:00:07.14 bitrate=3754.2kbits/s dup=1 drop=0 speed=0.57x frame= 225 fps= 17 q=23.0 q=1.6 size= 3414kB time=00:00:07.47 bitrate=3741.0kbits/s dup=1 drop=0 speed=0.572x frame= 235 fps= 17 q=23.0 q=1.6 size= 3554kB time=00:00:07.80 bitrate=3728.2kbits/s dup=1 drop=0 speed=0.575x frame= 245 fps= 17 q=23.0 q=1.6 size= 3762kB time=00:00:08.14 bitrate=3785.0kbits/s dup=1 drop=0 speed=0.576x frame= 255 fps= 17 q=23.0 q=1.6 size= 3900kB time=00:00:08.47 bitrate=3769.4kbits/s dup=1 drop=0 speed=0.578x frame= 265 fps= 17 q=23.0 q=1.6 size= 4037kB time=00:00:08.81 bitrate=3753.4kbits/s dup=1 drop=0 speed=0.58x frame= 275 fps= 18 q=23.0 q=1.6 size= 4193kB time=00:00:09.14 bitrate=3757.1kbits/s dup=1 drop=0 speed=0.582x frame= 285 fps= 18 q=23.0 q=1.6 size= 4316kB time=00:00:09.47 bitrate=3730.9kbits/s dup=1 drop=0 speed=0.584x frame= 295 fps= 18 q=23.0 q=1.6 size= 4453kB time=00:00:09.81 bitrate=3718.5kbits/s dup=1 drop=0 speed=0.585x [Parsed_thumbnail_3 @ 0x3d4fa20] frame id #52 (pts_time=8.408400) selected from a set of 100 images frame= 305 fps= 18 q=23.0 q=1.6 size= 4649kB time=00:00:10.14 bitrate=3754.7kbits/s dup=1 drop=0 speed=0.587x frame= 314 fps= 18 q=23.0 q=1.6 size= 4801kB time=00:00:10.44 bitrate=3765.4kbits/s dup=1 drop=0 speed=0.587x frame= 324 fps= 18 q=23.0 q=1.6 size= 4930kB time=00:00:10.77 bitrate=3746.9kbits/s dup=1 drop=0 speed=0.588x frame= 334 fps= 18 q=23.0 q=1.6 size= 5071kB time=00:00:11.11 bitrate=3738.3kbits/s dup=1 drop=0 speed=0.59x frame= 344 fps= 18 q=23.0 q=1.6 size= 5226kB time=00:00:11.44 bitrate=3740.3kbits/s dup=1 drop=0 speed=0.591x [decklink @ 0x3d28d80] Decklink input buffer overrun! Last message repeated 8 times frame= 354 fps= 18 q=23.0 q=1.6 size= 5356kB time=00:00:11.77 bitrate=3724.8kbits/s dup=1 drop=0 speed=0.592x [decklink @ 0x3d28d80] Decklink input buffer overrun! Last message repeated 19 times frame= 364 fps= 18 q=23.0 q=1.6 size= 5566kB time=00:00:12.11 bitrate=3764.2kbits/s dup=1 drop=0 speed=0.594x [decklink @ 0x3d28d80] Decklink input buffer overrun! Last message repeated 19 times frame= 374 fps= 18 q=23.0 q=1.6 size= 5707kB time=00:00:12.44 bitrate=3755.9kbits/s dup=1 drop=0 speed=0.596x [decklink @ 0x3d28d80] Decklink input buffer overrun! Last message repeated 19 times frame= 384 fps= 18 q=23.0 q=1.6 size= 5851kB time=00:00:12.78 bitrate=3750.2kbits/s dup=1 drop=0 speed=0.597x [decklink @ 0x3d28d80] Decklink input buffer overrun! Last message repeated 4 times [Parsed_thumbnail_3 @ 0x3d4fa20] frame id #45 (pts_time=14.848166) selected from a set of 100 images [decklink @ 0x3d28d80] Decklink input buffer overrun! Last message repeated 16 times frame= 507 fps= 18 q=23.0 q=1.6 size= 7812kB time=00:00:16.88 bitrate=3789.9kbits/s dup=1 drop=0 speed=0.611x [decklink @ 0x3d28d80] Decklink input buffer overrun! Last message repeated 19 times frame= 517 fps= 18 q=23.0 q=1.6 size= 7960kB time=00:00:17.21 bitrate=3787.1kbits/s dup=1 drop=0 speed=0.612x [decklink @ 0x3d28d80] Decklink input buffer overrun! Last message repeated 19 times frame= 527 fps= 18 q=23.0 q=1.6 size= 8105kB time=00:00:17.55 bitrate=3782.9kbits/s dup=1 drop=0 speed=0.613x [decklink @ 0x3d28d80] Decklink input buffer overrun! Last message repeated 19 times frame= 537 fps= 18 q=23.0 q=1.6 size= 8256kB time=00:00:17.88 bitrate=3781.3kbits/s dup=1 drop=0 speed=0.614x [decklink @ 0x3d28d80] Decklink input buffer overrun! Last message repeated 19 times frame= 547 fps= 18 q=23.0 q=1.6 size= 8469kB time=00:00:18.21 bitrate=3808.0kbits/s dup=1 drop=0 speed=0.615x [decklink @ 0x3d28d80] Decklink input buffer overrun! Last message repeated 21 times frame= 557 fps= 18 q=23.0 q=1.6 size= 8617kB time=00:00:18.55 bitrate=3805.0kbits/s dup=1 drop=0 speed=0.615x [decklink @ 0x3d28d80] Decklink input buffer overrun! Last message repeated 19 times frame= 567 fps= 18 q=23.0 q=1.6 size= 8768kB time=00:00:18.88 bitrate=3802.9kbits/s dup=1 drop=0 speed=0.616x [decklink @ 0x3d28d80] Decklink input buffer overrun! Last message repeated 19 times ... --- Best regards, *Tung Tran* _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".