[FFmpeg-trac] #7328(avformat:new): Bug: FFmpeg's tee muxer treats a named pipe output as a regular output file instead of 'writing' into it as expected.

FFmpeg trac at avcodec.org
Thu Jul 26 23:27:08 EEST 2018


#7328: Bug: FFmpeg's tee muxer treats a named pipe output as a regular output file
instead of 'writing' into it as expected.
------------------------------------+--------------------------------------
             Reporter:  Brainiarc7  |                     Type:  defect
               Status:  new         |                 Priority:  normal
            Component:  avformat    |                  Version:  git-master
             Keywords:  tee muxer   |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
------------------------------------+--------------------------------------
 '''Summary of the bug:'''

 As described above, FFmpeg treats a named pipe output as any other file
 when using the tee muxer, and instead of writing into it as expected,
 merely ignores it and creates a new file named after the named pipe
 syntax. See the snippet below:


 '''How to reproduce:'''

 {{{
 ffmpeg -re -stream_loop -1 -threads 2 -loglevel debug
 -filter_complex_threads 2 \
 -i '/home/brainiarc7/Desktop/src/mercyme.MKV' \
 -filter_complex "[0:v]split=2[s0][s1]; \
 [s0]yadif[v0]; \
 [s1]yadif[v1]" \
 -b:v:0 2250k -c:v h264_nvenc -a53cc 1 -profile:v high -aud 1 \
 -b:v:1 1750k -c:v h264_nvenc -a53cc 1 -profile:v high -aud 1 \
 -c:a aac -b:a 128k -ar 48000 -ac 2 \
 -flags -global_header \
 -map "[v0]" -map "[v1]" -map 0:a:0 \
 -f tee -use_fifo 1
 "[f=hls:hls_flags=+delete_segments:hls_time=2:hls_list_size=5:var_stream_map="'v\\\:0,a\\\:0
 v\\\:1,a\\\:0'":master_pl_name=master.m3u8]"/home/brainiarc7/Desktop/dest/vs%v/manifest.m3u8"|
 \
  [f=mp4:movflags=frag_keyframe+empty_moov] pipe:1 > test_channel.mp4"
 }}}


 '''Output:'''


 {{{
 ffmpeg version N-91482-g8aa6d9a8d3 Copyright (c) 2000-2018 the FFmpeg
 developers
   built with gcc 7 (Ubuntu 7.3.0-16ubuntu3)
   configuration: --prefix=/home/brainiarc7/ffmpeg_build --pkg-config-
 flags=--static --extra-cflags=-I/home/brainiarc7/ffmpeg_build/include
 --extra-ldflags=-L/home/brainiarc7/ffmpeg_build/lib
 --bindir=/home/brainiarc7/bin --enable-cuda-sdk --enable-cuvid --enable-
 libnpp --extra-cflags=-I/usr/local/cuda/include/ --extra-
 ldflags=-L/usr/local/cuda/lib64/ --nvccflags='-gencode
 arch=compute_61,code=sm_61 -O2' --enable-gpl --enable-libass --enable-
 libfdk-aac --enable-libx264 --extra-libs=-lpthread --enable-libx265
 --enable-nvenc --enable-nonfree
   libavutil      56. 18.102 / 56. 18.102
   libavcodec     58. 21.105 / 58. 21.105
   libavformat    58. 17.101 / 58. 17.101
   libavdevice    58.  4.101 / 58.  4.101
   libavfilter     7. 26.100 /  7. 26.100
   libswscale      5.  2.100 /  5.  2.100
   libswresample   3.  2.100 /  3.  2.100
   libpostproc    55.  2.100 / 55.  2.100
 Splitting the commandline.
 Reading option '-re' ... matched as option 're' (read input at native
 frame rate) with argument '1'.
 Reading option '-stream_loop' ... matched as option 'stream_loop' (set
 number of times input stream shall be looped) with argument '-1'.
 Reading option '-threads' ... matched as AVOption 'threads' with argument
 '2'.
 Reading option '-loglevel' ... matched as option 'loglevel' (set logging
 level) with argument 'debug'.
 Reading option '-filter_complex_threads' ... matched as option
 'filter_complex_threads' (number of threads for -filter_complex) with
 argument '2'.
 Reading option '-i' ... matched as input url with argument
 '/home/brainiarc7/Desktop/src/mercyme.MKV'.
 Reading option '-filter_complex' ... matched as option 'filter_complex'
 (create a complex filtergraph) with argument '[0:v]split=2[s0][s1];
 [s0]yadif[v0]; [s1]yadif[v1]'.
 Reading option '-b:v:0' ... matched as option 'b' (video bitrate (please
 use -b:v)) with argument '2250k'.
 Reading option '-c:v' ... matched as option 'c' (codec name) with argument
 'h264_nvenc'.
 Reading option '-a53cc' ... matched as AVOption 'a53cc' with argument '1'.
 Reading option '-profile:v' ... matched as option 'profile' (set profile)
 with argument 'high'.
 Reading option '-aud' ... matched as AVOption 'aud' with argument '1'.
 Reading option '-b:v:1' ... matched as option 'b' (video bitrate (please
 use -b:v)) with argument '1750k'.
 Reading option '-c:v' ... matched as option 'c' (codec name) with argument
 'h264_nvenc'.
 Reading option '-a53cc' ... matched as AVOption 'a53cc' with argument '1'.
 Reading option '-profile:v' ... matched as option 'profile' (set profile)
 with argument 'high'.
 Reading option '-aud' ... matched as AVOption 'aud' with argument '1'.
 Reading option '-c:a' ... matched as option 'c' (codec name) with argument
 'aac'.
 Reading option '-b:a' ... matched as option 'b' (video bitrate (please use
 -b:v)) with argument '128k'.
 Reading option '-ar' ... matched as option 'ar' (set audio sampling rate
 (in Hz)) with argument '48000'.
 Reading option '-ac' ... matched as option 'ac' (set number of audio
 channels) with argument '2'.
 Reading option '-flags' ... matched as AVOption 'flags' with argument
 '-global_header'.
 Reading option '-map' ... matched as option 'map' (set input stream
 mapping) with argument '[v0]'.
 Reading option '-map' ... matched as option 'map' (set input stream
 mapping) with argument '[v1]'.
 Reading option '-map' ... matched as option 'map' (set input stream
 mapping) with argument '0:a:0'.
 Reading option '-f' ... matched as option 'f' (force format) with argument
 'tee'.
 Reading option '-use_fifo' ... matched as AVOption 'use_fifo' with
 argument '1'.
 Reading option
 '[f=hls:hls_flags=+delete_segments:hls_time=2:hls_list_size=5:var_stream_map=v\\\:0,a\\\:0
 v\\\:1,a\\\:0:master_pl_name=master.m3u8]/home/brainiarc7/Desktop/dest/vs%v/manifest.m3u8|
 [f=mp4:movflags=frag_keyframe+empty_moov] pipe:1 > test_channel.mp4' ...
 matched as output url.
 Finished splitting the commandline.
 Parsing a group of options: global .
 Applying option loglevel (set logging level) with argument debug.
 Applying option filter_complex_threads (number of threads for
 -filter_complex) with argument 2.
 Applying option filter_complex (create a complex filtergraph) with
 argument [0:v]split=2[s0][s1]; [s0]yadif[v0]; [s1]yadif[v1].
 Successfully parsed a group of options.
 Parsing a group of options: input url
 /home/brainiarc7/Desktop/src/mercyme.MKV.
 Applying option re (read input at native frame rate) with argument 1.
 Applying option stream_loop (set number of times input stream shall be
 looped) with argument -1.
 Successfully parsed a group of options.
 Opening an input file: /home/brainiarc7/Desktop/src/mercyme.MKV.
 [NULL @ 0x562aa3ec3600] Opening '/home/brainiarc7/Desktop/src/mercyme.MKV'
 for reading
 [file @ 0x562aa3ec4180] Setting default whitelist 'file,crypto'
 [matroska,webm @ 0x562aa3ec3600] Format matroska,webm probed with
 size=2048 and score=100
 [matroska,webm @ 0x562aa3ec3600] Unknown entry 0x73C5
     Last message repeated 1 times
 st:0 removing common factor 1000000 from timebase
 st:1 removing common factor 1000000 from timebase
 [matroska,webm @ 0x562aa3ec3600] Before avformat_find_stream_info() pos:
 752 bytes read:32768 seeks:0 nb_streams:2
 [vp9 @ 0x562aa3ec75c0] Format yuv420p chosen by get_format().
 [matroska,webm @ 0x562aa3ec3600] All info found
 [matroska,webm @ 0x562aa3ec3600] rfps: 23.750000 0.011872
     Last message repeated 1 times
 [matroska,webm @ 0x562aa3ec3600] rfps: 23.833333 0.004757
 [matroska,webm @ 0x562aa3ec3600] rfps: 23.916667 0.000861
 [matroska,webm @ 0x562aa3ec3600] rfps: 24.000000 0.000184
 [matroska,webm @ 0x562aa3ec3600] rfps: 24.083333 0.002727
 [matroska,webm @ 0x562aa3ec3600] rfps: 24.166667 0.008490
     Last message repeated 1 times
 [matroska,webm @ 0x562aa3ec3600] rfps: 24.250000 0.017472
     Last message repeated 1 times
 [matroska,webm @ 0x562aa3ec3600] rfps: 48.000000 0.000737
 [matroska,webm @ 0x562aa3ec3600] rfps: 120.000000 0.004604
 [matroska,webm @ 0x562aa3ec3600] rfps: 240.000000 0.018416
 [matroska,webm @ 0x562aa3ec3600] rfps: 23.976024 0.000049
 [matroska,webm @ 0x562aa3ec3600] rfps: 47.952048 0.000196
 [matroska,webm @ 0x562aa3ec3600] Setting avg frame rate based on r frame
 rate
 [matroska,webm @ 0x562aa3ec3600] After avformat_find_stream_info() pos:
 19216 bytes read:32768 seeks:0 frames:125
 Input #0, matroska,webm, from '/home/brainiarc7/Desktop/src/mercyme.MKV':
   Metadata:
     COMPATIBLE_BRANDS: isomiso2avc1mp41
     MAJOR_BRAND     : isom
     MINOR_VERSION   : 512
     ENCODER         : IDMmkvlib0.1
     LANGUAGE        : und
     HANDLER_NAME    : AudioHandler
   Duration: 00:04:46.22, start: 0.000000, bitrate: 997 kb/s
     Stream #0:0, 41, 1/1000: Video: vp9 (Profile 0), 1 reference frame,
 yuv420p(tv, bt709/unknown/unknown), 1920x1080, 0/1, SAR 1:1 DAR 16:9,
 23.98 fps, 23.98 tbr, 1k tbn, 1k tbc (default)
     Stream #0:1, 84, 1/1000: Audio: opus, 48000 Hz, stereo, fltp (default)
 Successfully opened the file.
 [Parsed_split_0 @ 0x562aa3f34540] Setting 'outputs' to value '2'
 Parsing a group of options: output url
 [f=hls:hls_flags=+delete_segments:hls_time=2:hls_list_size=5:var_stream_map=v\\\:0,a\\\:0
 v\\\:1,a\\\:0:master_pl_name=master.m3u8]/home/brainiarc7/Desktop/dest/vs%v/manifest.m3u8|
 [f=mp4:movflags=frag_keyframe+empty_moov] pipe:1 > test_channel.mp4.
 Applying option b:v:0 (video bitrate (please use -b:v)) with argument
 2250k.
 Applying option c:v (codec name) with argument h264_nvenc.
 Applying option profile:v (set profile) with argument high.
 Applying option b:v:1 (video bitrate (please use -b:v)) with argument
 1750k.
 Applying option c:v (codec name) with argument h264_nvenc.
 Applying option profile:v (set profile) with argument high.
 Applying option c:a (codec name) with argument aac.
 Applying option b:a (video bitrate (please use -b:v)) with argument 128k.
 Applying option ar (set audio sampling rate (in Hz)) with argument 48000.
 Applying option ac (set number of audio channels) with argument 2.
 Applying option map (set input stream mapping) with argument [v0].
 Applying option map (set input stream mapping) with argument [v1].
 Applying option map (set input stream mapping) with argument 0:a:0.
 Applying option f (force format) with argument tee.
 Successfully parsed a group of options.
 Opening an output file:
 [f=hls:hls_flags=+delete_segments:hls_time=2:hls_list_size=5:var_stream_map=v\\\:0,a\\\:0
 v\\\:1,a\\\:0:master_pl_name=master.m3u8]/home/brainiarc7/Desktop/dest/vs%v/manifest.m3u8|
 [f=mp4:movflags=frag_keyframe+empty_moov] pipe:1 > test_channel.mp4.
 Codec AVOption a53cc (Use A53 Closed Captions (if available)) specified
 for output file #0
 ([f=hls:hls_flags=+delete_segments:hls_time=2:hls_list_size=5:var_stream_map=v\\\:0,a\\\:0
 v\\\:1,a\\\:0:master_pl_name=master.m3u8]/home/brainiarc7/Desktop/dest/vs%v/manifest.m3u8|
 [f=mp4:movflags=frag_keyframe+empty_moov] pipe:1 > test_channel.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.
 Successfully opened the file.
 Stream mapping:
   Stream #0:0 (vp9) -> split (graph 0)
   yadif (graph 0) -> Stream #0:0 (h264_nvenc)
   yadif (graph 0) -> Stream #0:1 (h264_nvenc)
   Stream #0:1 -> #0:2 (opus (native) -> aac (native))
 Press [q] to stop, [?] for help
 cur_dts is invalid (this is harmless if it occurs once at the start per
 stream)
     Last message repeated 1 times
 [vp9 @ 0x562aa3f50c80] Format yuv420p chosen by get_format().
 detected 12 logical cores
 [graph_1_in_0_1 @ 0x562aa400d080] Setting 'time_base' to value '1/48000'
 [graph_1_in_0_1 @ 0x562aa400d080] Setting 'sample_rate' to value '48000'
 [graph_1_in_0_1 @ 0x562aa400d080] Setting 'sample_fmt' to value 'fltp'
 [graph_1_in_0_1 @ 0x562aa400d080] Setting 'channel_layout' to value '0x3'
 [graph_1_in_0_1 @ 0x562aa400d080] tb:1/48000 samplefmt:fltp
 samplerate:48000 chlayout:0x3
 [format_out_0_2 @ 0x562aa400d540] Setting 'sample_fmts' to value 'fltp'
 [format_out_0_2 @ 0x562aa400d540] Setting 'sample_rates' to value '48000'
 [format_out_0_2 @ 0x562aa400d540] Setting 'channel_layouts' to value '0x3'
 [AVFilterGraph @ 0x562aa3f09f40] query_formats: 4 queried, 9 merged, 0
 already done, 0 delayed
 cur_dts is invalid (this is harmless if it occurs once at the start per
 stream)
     Last message repeated 9234 times
 [Parsed_split_0 @ 0x562aa40b4380] Setting 'outputs' to value '2'
 [graph 0 input from stream 0:0 @ 0x562aa40b6380] Setting 'video_size' to
 value '1920x1080'
 [graph 0 input from stream 0:0 @ 0x562aa40b6380] Setting 'pix_fmt' to
 value '0'
 [graph 0 input from stream 0:0 @ 0x562aa40b6380] Setting 'time_base' to
 value '1/1000'
 [graph 0 input from stream 0:0 @ 0x562aa40b6380] Setting 'pixel_aspect' to
 value '1/1'
 [graph 0 input from stream 0:0 @ 0x562aa40b6380] Setting 'sws_param' to
 value 'flags=2'
 [graph 0 input from stream 0:0 @ 0x562aa40b6380] Setting 'frame_rate' to
 value '24000/1001'
 [graph 0 input from stream 0:0 @ 0x562aa40b6380] w:1920 h:1080
 pixfmt:yuv420p tb:1/1000 fr:24000/1001 sar:1/1 sws_param:flags=2
 [format @ 0x562aa4010180] Setting 'pix_fmts' to value
 'yuv420p|nv12|p010le|yuv444p|p016le|yuv444p16le|bgr0|rgb0|cuda'
 [format @ 0x562aa40b6f00] Setting 'pix_fmts' to value
 'yuv420p|nv12|p010le|yuv444p|p016le|yuv444p16le|bgr0|rgb0|cuda'
 [AVFilterGraph @ 0x562aa40b3b40] query_formats: 8 queried, 7 merged, 0
 already done, 0 delayed
 [h264_nvenc @ 0x562aa3f02600] Loaded lib: libcuda.so.1
 [h264_nvenc @ 0x562aa3f02600] Loaded sym: cuInit
 [h264_nvenc @ 0x562aa3f02600] Loaded sym: cuDeviceGetCount
 [h264_nvenc @ 0x562aa3f02600] Loaded sym: cuDeviceGet
 [h264_nvenc @ 0x562aa3f02600] Loaded sym: cuDeviceGetName
 [h264_nvenc @ 0x562aa3f02600] Loaded sym: cuDeviceComputeCapability
 [h264_nvenc @ 0x562aa3f02600] Loaded sym: cuCtxCreate_v2
 [h264_nvenc @ 0x562aa3f02600] Loaded sym: cuCtxSetLimit
 [h264_nvenc @ 0x562aa3f02600] Loaded sym: cuCtxPushCurrent_v2
 [h264_nvenc @ 0x562aa3f02600] Loaded sym: cuCtxPopCurrent_v2
 [h264_nvenc @ 0x562aa3f02600] Loaded sym: cuCtxDestroy_v2
 [h264_nvenc @ 0x562aa3f02600] Loaded sym: cuMemAlloc_v2
 [h264_nvenc @ 0x562aa3f02600] Loaded sym: cuMemFree_v2
 [h264_nvenc @ 0x562aa3f02600] Loaded sym: cuMemcpy2D_v2
 [h264_nvenc @ 0x562aa3f02600] Loaded sym: cuMemcpy2DAsync_v2
 [h264_nvenc @ 0x562aa3f02600] Loaded sym: cuGetErrorName
 [h264_nvenc @ 0x562aa3f02600] Loaded sym: cuGetErrorString
 [h264_nvenc @ 0x562aa3f02600] Loaded sym: cuStreamCreate
 [h264_nvenc @ 0x562aa3f02600] Loaded sym: cuStreamQuery
 [h264_nvenc @ 0x562aa3f02600] Loaded sym: cuStreamSynchronize
 [h264_nvenc @ 0x562aa3f02600] Loaded sym: cuStreamDestroy_v2
 [h264_nvenc @ 0x562aa3f02600] Loaded sym: cuStreamAddCallback
 [h264_nvenc @ 0x562aa3f02600] Loaded sym: cuEventCreate
 [h264_nvenc @ 0x562aa3f02600] Loaded sym: cuEventDestroy_v2
 [h264_nvenc @ 0x562aa3f02600] Loaded sym: cuEventSynchronize
 [h264_nvenc @ 0x562aa3f02600] Loaded sym: cuEventQuery
 [h264_nvenc @ 0x562aa3f02600] Loaded sym: cuEventRecord
 [h264_nvenc @ 0x562aa3f02600] Loaded sym: cuGLGetDevices_v2
 [h264_nvenc @ 0x562aa3f02600] Loaded sym: cuGraphicsGLRegisterImage
 [h264_nvenc @ 0x562aa3f02600] Loaded sym: cuGraphicsUnregisterResource
 [h264_nvenc @ 0x562aa3f02600] Loaded sym: cuGraphicsMapResources
 [h264_nvenc @ 0x562aa3f02600] Loaded sym: cuGraphicsUnmapResources
 [h264_nvenc @ 0x562aa3f02600] Loaded sym:
 cuGraphicsSubResourceGetMappedArray
 [h264_nvenc @ 0x562aa3f02600] Loaded lib: libnvidia-encode.so.1
 [h264_nvenc @ 0x562aa3f02600] Loaded sym: NvEncodeAPICreateInstance
 [h264_nvenc @ 0x562aa3f02600] Loaded sym:
 NvEncodeAPIGetMaxSupportedVersion
 [h264_nvenc @ 0x562aa3f02600] Loaded Nvenc version 8.1
 [h264_nvenc @ 0x562aa3f02600] Nvenc initialized successfully
 [h264_nvenc @ 0x562aa3f02600] 1 CUDA capable devices found
 [h264_nvenc @ 0x562aa3f02600] [ GPU #0 - < GeForce GTX 1070 with Max-Q
 Design > has Compute SM 6.1 ]
 [h264_nvenc @ 0x562aa3f02600] supports NVENC
 [h264_nvenc @ 0x562aa3f036c0] Loaded lib: libcuda.so.1
 [h264_nvenc @ 0x562aa3f036c0] Loaded sym: cuInit
 [h264_nvenc @ 0x562aa3f036c0] Loaded sym: cuDeviceGetCount
 [h264_nvenc @ 0x562aa3f036c0] Loaded sym: cuDeviceGet
 [h264_nvenc @ 0x562aa3f036c0] Loaded sym: cuDeviceGetName
 [h264_nvenc @ 0x562aa3f036c0] Loaded sym: cuDeviceComputeCapability
 [h264_nvenc @ 0x562aa3f036c0] Loaded sym: cuCtxCreate_v2
 [h264_nvenc @ 0x562aa3f036c0] Loaded sym: cuCtxSetLimit
 [h264_nvenc @ 0x562aa3f036c0] Loaded sym: cuCtxPushCurrent_v2
 [h264_nvenc @ 0x562aa3f036c0] Loaded sym: cuCtxPopCurrent_v2
 [h264_nvenc @ 0x562aa3f036c0] Loaded sym: cuCtxDestroy_v2
 [h264_nvenc @ 0x562aa3f036c0] Loaded sym: cuMemAlloc_v2
 [h264_nvenc @ 0x562aa3f036c0] Loaded sym: cuMemFree_v2
 [h264_nvenc @ 0x562aa3f036c0] Loaded sym: cuMemcpy2D_v2
 [h264_nvenc @ 0x562aa3f036c0] Loaded sym: cuMemcpy2DAsync_v2
 [h264_nvenc @ 0x562aa3f036c0] Loaded sym: cuGetErrorName
 [h264_nvenc @ 0x562aa3f036c0] Loaded sym: cuGetErrorString
 [h264_nvenc @ 0x562aa3f036c0] Loaded sym: cuStreamCreate
 [h264_nvenc @ 0x562aa3f036c0] Loaded sym: cuStreamQuery
 [h264_nvenc @ 0x562aa3f036c0] Loaded sym: cuStreamSynchronize
 [h264_nvenc @ 0x562aa3f036c0] Loaded sym: cuStreamDestroy_v2
 [h264_nvenc @ 0x562aa3f036c0] Loaded sym: cuStreamAddCallback
 [h264_nvenc @ 0x562aa3f036c0] Loaded sym: cuEventCreate
 [h264_nvenc @ 0x562aa3f036c0] Loaded sym: cuEventDestroy_v2
 [h264_nvenc @ 0x562aa3f036c0] Loaded sym: cuEventSynchronize
 [h264_nvenc @ 0x562aa3f036c0] Loaded sym: cuEventQuery
 [h264_nvenc @ 0x562aa3f036c0] Loaded sym: cuEventRecord
 [h264_nvenc @ 0x562aa3f036c0] Loaded sym: cuGLGetDevices_v2
 [h264_nvenc @ 0x562aa3f036c0] Loaded sym: cuGraphicsGLRegisterImage
 [h264_nvenc @ 0x562aa3f036c0] Loaded sym: cuGraphicsUnregisterResource
 [h264_nvenc @ 0x562aa3f036c0] Loaded sym: cuGraphicsMapResources
 [h264_nvenc @ 0x562aa3f036c0] Loaded sym: cuGraphicsUnmapResources
 [h264_nvenc @ 0x562aa3f036c0] Loaded sym:
 cuGraphicsSubResourceGetMappedArray
 [h264_nvenc @ 0x562aa3f036c0] Loaded lib: libnvidia-encode.so.1
 [h264_nvenc @ 0x562aa3f036c0] Loaded sym: NvEncodeAPICreateInstance
 [h264_nvenc @ 0x562aa3f036c0] Loaded sym:
 NvEncodeAPIGetMaxSupportedVersion
 [h264_nvenc @ 0x562aa3f036c0] Loaded Nvenc version 8.1
 [h264_nvenc @ 0x562aa3f036c0] Nvenc initialized successfully
 [h264_nvenc @ 0x562aa3f036c0] 1 CUDA capable devices found
 [h264_nvenc @ 0x562aa3f036c0] [ GPU #0 - < GeForce GTX 1070 with Max-Q
 Design > has Compute SM 6.1 ]
 [h264_nvenc @ 0x562aa3f036c0] supports NVENC
 [tee @ 0x562aa3ed9100]
 filename:'/home/brainiarc7/Desktop/dest/vs%v/manifest.m3u8' format:fifo
 [tee @ 0x562aa3ed9100]     stream:0 codec:h264 type:video bsfs: null
 [tee @ 0x562aa3ed9100]     stream:1 codec:h264 type:video bsfs: null
 [tee @ 0x562aa3ed9100]     stream:2 codec:aac type:audio bsfs: null
 [hls @ 0x562aa520f7c0] Number of variant streams 2
 [tee @ 0x562aa3ed9100] filename:' pipe:1 > test_channel.mp4' format:fifo
 [tee @ 0x562aa3ed9100]     stream:0 codec:h264 type:video bsfs: null
 [tee @ 0x562aa3ed9100]     stream:1 codec:h264 type:video bsfs: null
 [tee @ 0x562aa3ed9100]     stream:2 codec:aac type:audio bsfs: null
 Output #0, tee, to
 '[f=hls:hls_flags=+delete_segments:hls_time=2:hls_list_size=5:var_stream_map=v\\\:0,a\\\:0
 v\\\:1,a\\\:0:master_pl_name=master.m3u8]/home/brainiarc7/Desktop/dest/vs%v/manifest.m3u8|
 [f=mp4:movflags=frag_keyframe+empty_moov] pipe:1 > test_channel.mp4':
   Metadata:
     COMPATIBLE_BRANDS: isomiso2avc1mp41
     MAJOR_BRAND     : isom
     MINOR_VERSION   : 512
     HANDLER_NAME    : AudioHandler
     LANGUAGE        : und
     encoder         : Lavf58.17.101
 [mp4 @ 0x562aa5219a80] Opening ' pipe:1 > test_channel.mp4' for writing
     Stream #0:0, 0, 1001/24000Setting default whitelist 'file,crypto'
 : Video: h264 (h264_nvenc) (High), 1 reference frame, yuv420p, 1920x1080
 [SAR 1:1 DAR 16:9], 0/1, q=-1--1, 2250 kb/s, 23.98 fps, 23.98 tbn, Opening
 '/home/brainiarc7/Desktop/dest/vs0/manifest0.ts' for writing
 23.98 tbc (default)
     Metadata:
       encoder         : Lavc58.21.105 h264_nvenc
     Side data:
       cpb: bitrate max/min/avg: 0/0/2250000 buffer size: 4500000
 vbv_delay: -1
 [mp4 @ 0x562aa5219a80] Empty MOOV enabled; disabling automatic bitstream
 filtering
 [file @ 0x7f078c005800] Setting default whitelist 'file,crypto'
     Stream #0:1, 0, 1001/24000: Video: h264 (h264_nvenc) (High), 1
 reference frame, yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 0/1, q=-1--1, 1750
 kb/s, 23.98 fps, 23.98 tbn, 23.98 tbc (default)
     Metadata:
       encoder         : Lavc58.21.105 h264_nvenc
     Side data:
       cpb: bitrate max/min/avg: 0/0/1750000 buffer size: 3500000
 vbv_delay: -1
     Stream #0:2, 0, 1/48000: Audio: aac (LC), 48000 Hz, stereo, fltp,
 delay 1024, 128 kb/s (default)
     Metadata:
       encoder         : Lavc58.21.105 aac
 cur_dts is invalid (this is harmless if it occurs once at the start per
 stream)
     Last message repeated 1 times
 [hls @ 0x562aa520f7c0] Opening
 '/home/brainiarc7/Desktop/dest/vs1/manifest0.ts' for writing
 [file @ 0x7f078c048c80] Setting default whitelist 'file,crypto'
 [mpegts @ 0x7f078c002a00] muxrate VBR, pcr every 2 pkts, sdt every
 2147483647, pat/pmt every 2147483647 pkts
 cur_dts is invalid (this is harmless if it occurs once at the start per
 stream)
     Last message repeated 1 times
 [mpegts @ 0x7f078c046080] muxrate VBR, pcr every 2 pkts, sdt every
 2147483647, pat/pmt every 2147483647 pkts
 cur_dts is invalid (this is harmless if it occurs once at the start per
 stream)
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.000008
     Last message repeated 1 times
 cur_dts is invalid (this is harmless if it occurs once at the start per
 stream)
     Last message repeated 11 times
 Clipping frame in rate conversion by 0.009972
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.002983
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.005974
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.008995
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.001976me=00:00:00.42 bitrate=N/A
 speed=0.843x
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.004997
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.007988
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.000999
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.010979
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.003990
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.006981me=00:00:00.93 bitrate=N/A
 speed=0.922x
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.009972
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.002983
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.005974
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.008995
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.001976
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.004997me=00:00:01.47 bitrate=N/A
 speed=0.964x
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.007988
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.000999
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.010979
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.003990
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.006981me=00:00:01.98 bitrate=N/A
 speed=0.971x
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.009972
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.002983
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.005974
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.008995
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.001976
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.004997me=00:00:02.49 bitrate=N/A
 speed=0.981x
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.007988
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.000999
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.010979
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.003990
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.006981me=00:00:02.98 bitrate=N/A
 speed=0.978x
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.009972
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.002983
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.005974
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.008995
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.001976
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.004997me=00:00:03.49 bitrate=N/A
 speed=0.982x
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.007988
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.000999
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.010979
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.003990
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.006981
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.009972me=00:00:04.01 bitrate=N/A
 speed=0.985x
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.002983
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.005974
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.008995
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.001976
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.004997me=00:00:04.50 bitrate=N/A
 speed=0.982x
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.007988
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.000999
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.010979
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.003990
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.006981
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.009972me=00:00:05.01 bitrate=N/A
 speed=0.986x
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.002983
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.005974
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.001976
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.000999me=00:00:05.52 bitrate=N/A
 speed=0.986x
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.002983me=00:00:06.03 bitrate=N/A
 speed=0.988x
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.001976
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.000999me=00:00:06.54 bitrate=N/A
 speed=0.99x
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.002983me=00:00:07.04 bitrate=N/A
 speed=0.988x
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.001976
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.000999me=00:00:07.55 bitrate=N/A
 speed=0.99x
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.002983me=00:00:08.06 bitrate=N/A
 speed=0.991x
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.001976
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.000999me=00:00:08.57 bitrate=N/A
 speed=0.993x
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.002983me=00:00:09.06 bitrate=N/A
 speed=0.992x
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.001976
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.000999me=00:00:09.57 bitrate=N/A
 speed=0.993x
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.002983me=00:00:10.09 bitrate=N/A
 speed=0.992x
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.001976
     Last message repeated 1 times
 [AVIOContext @ 0x7f078c045c00] Statistics: 0 seeks, 14 writeoutsate=N/A
 speed=0.992x
 [hls @ 0x562aa520f7c0] Opening
 '/home/brainiarc7/Desktop/dest/vs0/manifest1.ts' for writing
 [file @ 0x7f078c08f980] Setting default whitelist 'file,crypto'
 [hls @ 0x562aa520f7c0] Opening
 '/home/brainiarc7/Desktop/dest/vs0/manifest.m3u8.tmp' for writing
 [file @ 0x7f078c08fa40] Setting default whitelist 'file,crypto'
 EXT-X-MEDIA-SEQUENCE:0
 [AVIOContext @ 0x7f078c006800] Statistics: 0 seeks, 1 writeouts
 [AVIOContext @ 0x7f078c088f40] Statistics: 0 seeks, 10 writeouts
 [hls @ 0x562aa520f7c0] Opening
 '/home/brainiarc7/Desktop/dest/vs1/manifest1.ts' for writing
 [file @ 0x7f078c08fa40] Setting default whitelist 'file,crypto'
 [hls @ 0x562aa520f7c0] Opening
 '/home/brainiarc7/Desktop/dest/vs1/manifest.m3u8.tmp' for writing
 [file @ 0x7f078c007dc0] Setting default whitelist 'file,crypto'
 EXT-X-MEDIA-SEQUENCE:0
 [AVIOContext @ 0x7f078c0076c0] Statistics: 0 seeks, 1 writeouts
 [hls @ 0x562aa520f7c0] Opening '/home/brainiarc7/Desktop/dest/master.m3u8'
 for writing
 [file @ 0x7f078c007840] Setting default whitelist 'file,crypto'
 [AVIOContext @ 0x7f078c0076c0] Statistics: 0 seeks, 1 writeouts
 Clipping frame in rate conversion by 0.007988
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.000999
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.017967
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.010979
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.003990
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.013969
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.006981
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.016960
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.009972me=00:00:11.11 bitrate=N/A
 speed=0.994x
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.002983
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.012993
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.005974
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.015984
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.008995
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.001976
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.018974
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.011986
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.004997
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.014977me=00:00:11.62 bitrate=N/A
 speed=0.995x
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.007988
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.000999
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.017967
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.010979
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.003990
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.013969
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.006981
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.016960
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.009972
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.002983me=00:00:12.11 bitrate=N/A
 speed=0.993x
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.012993
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.005974
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.015984
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.008995
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.001976
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.018974
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.011986
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.004997
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.014977me=00:00:12.62 bitrate=N/A
 speed=0.994x
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.007988
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.000999
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.017967
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.010979
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.003990
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.013969
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.006981
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.016960
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.009972
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.002983me=00:00:13.12 bitrate=N/A
 speed=0.993x
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.012993
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.005974
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.015984
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.008995
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.001976
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.018974
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.011986
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.004997
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.014977me=00:00:13.63 bitrate=N/A
 speed=0.994x
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.007988
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.000999
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.017967
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.010979
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.003990
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.013969
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.006981
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.016960
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.009972
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.002983me=00:00:14.12 bitrate=N/A
 speed=0.993x
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.012993
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.005974
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.015984
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.008995
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.001976
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.018974
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.011986
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.004997
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.014977me=00:00:14.65 bitrate=N/A
 speed=0.995x
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.007988
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.000999
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.017967
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.010979
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.003990
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.013969
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.006981
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.016960
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.009972
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.002983me=00:00:15.18 bitrate=N/A
 speed=0.997x
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.012993
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.005974
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.015984
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.008995
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.001976
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.018974
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.011986
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.004997
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.014977me=00:00:15.68 bitrate=N/A
 speed=0.996x
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.007988
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.000999
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.017967
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.010979
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.003990
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.013969
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.006981
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.009972
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.002983
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.005974me=00:00:16.19 bitrate=N/A
 speed=0.997x
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.008995
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.001976
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.004997
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.007988me=00:00:16.68 bitrate=N/A
 speed=0.996x
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.000999
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.010979
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.003990
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.006981
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.009972
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.002983
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.005974me=00:00:17.19 bitrate=N/A
 speed=0.997x
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.008995
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.001976
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.004997
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.007988me=00:00:17.68 bitrate=N/A
 speed=0.997x
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.000999
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.010979
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.003990
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.006981
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.009972
     Last message repeated 1 times
 Clipping frame in rate conversion by 0.002983
     Last message repeated 1 times
 [AVIOContext @ 0x7f078c08f700] Statistics: 0 seeks, 10 writeouts
 [hls @ 0x562aa520f7c0] Opening
 '/home/brainiarc7/Desktop/dest/vs0/manifest.m3u8.tmp' for writing
 [file @ 0x7f078c08f6c0] Setting default whitelist 'file,crypto'
 EXT-X-MEDIA-SEQUENCE:0
 [AVIOContext @ 0x7f078c048d00] Statistics: 0 seeks, 1 writeouts
 [AVIOContext @ 0x7f078c006800] Statistics: 0 seeks, 7 writeouts
 [hls @ 0x562aa520f7c0] Opening
 '/home/brainiarc7/Desktop/dest/vs1/manifest.m3u8.tmp' for writing
 [file @ 0x7f078c048c40] Setting default whitelist 'file,crypto'
 EXT-X-MEDIA-SEQUENCE:0
 [AVIOContext @ 0x7f078c090380] Statistics: 0 seeks, 1 writeouts
 [AVIOContext @ 0x7f0784041280] Statistics: 0 seeks, 40 writeouts
 frame=  436 fps= 24 q=20.0 Lq=23.0 size=N/A time=00:00:18.24 bitrate=N/A
 speed=0.998x
 video:9096kB audio:264kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: unknown
 Input file #0 (/home/brainiarc7/Desktop/src/mercyme.MKV):
   Input stream #0:0 (video): 438 packets read (1210811 bytes); 438 frames
 decoded;
   Input stream #0:1 (audio): 912 packets read (285142 bytes); 912 frames
 decoded (875520 samples);
   Total: 1350 packets (1495953 bytes) demuxed
 Output file #0
 ([f=hls:hls_flags=+delete_segments:hls_time=2:hls_list_size=5:var_stream_map=v\\\:0,a\\\:0
 v\\\:1,a\\\:0:master_pl_name=master.m3u8]/home/brainiarc7/Desktop/dest/vs%v/manifest.m3u8|
 [f=mp4:movflags=frag_keyframe+empty_moov] pipe:1 > test_channel.mp4):
   Output stream #0:0 (video): 436 frames encoded; 436 packets muxed
 (5341855 bytes);
   Output stream #0:1 (video): 436 frames encoded; 436 packets muxed
 (3972459 bytes);
   Output stream #0:2 (audio): 855 frames encoded (875520 samples); 856
 packets muxed (270328 bytes);
   Total: 1728 packets (9584642 bytes) muxed
 1350 frames successfully decoded, 0 decoding errors
 [h264_nvenc @ 0x562aa3f02600] Nvenc unloaded
 [h264_nvenc @ 0x562aa3f036c0] Nvenc unloaded
 [aac @ 0x562aa3f4ebc0] Qavg: 5826.013
 [AVIOContext @ 0x562aa3ecc640] Statistics: 1507328 bytes read, 0 seeks
 Exiting normally, received signal 2.
 }}}


 '''What I expected:'''

 FFmpeg should output to the named pipe test_stream.mp4.

 '''What I get:'''

 FFmpeg outputs to a filesystem object, named ' pipe:1 > test_channel.mp4'.


 '''An example of a working command:'''

 See the snippet below:


 {{{
 ffmpeg -re -stream_loop -1 -threads 5 -loglevel debug
 -filter_complex_threads 5 \
 -init_hw_device qsv=qsv:MFX_IMPL_hw_any -hwaccel qsv -filter_hw_device qsv
 \
 -i '/home/brainiarc7/Desktop/src/mercyme.MKV' \
 -filter_complex "[0:v]split=6[s0][s1][s2][s3][s4][s5]; \
 [s0]hwupload=extra_hw_frames=10,vpp_qsv=deinterlace=2,scale_qsv=1920:1080:format=nv12[v0];
 \
 [s1]hwupload=extra_hw_frames=10,vpp_qsv=deinterlace=2,scale_qsv=1280:720:format=nv12[v1];
 [s2]hwupload=extra_hw_frames=10,vpp_qsv=deinterlace=2,scale_qsv=960:540:format=nv12[v2];
 [s3]hwupload=extra_hw_frames=10,vpp_qsv=deinterlace=2,scale_qsv=842:480:format=nv12[v3];
 [s4]hwupload=extra_hw_frames=10,vpp_qsv=deinterlace=2,scale_qsv=480:360:format=nv12[v4];
 [s5]hwupload=extra_hw_frames=10,vpp_qsv=deinterlace=2,scale_qsv=426:240:format=nv12[v5]"
 \
 -b:v:0 2250k -c:v h264_qsv -a53cc 1 -rdo 1 -pic_timing_sei 1
 -recovery_point_sei 1 -profile high -aud 1 \
 -b:v:1 1750k -c:v h264_qsv -a53cc 1 -rdo 1 -pic_timing_sei 1
 -recovery_point_sei 1 -profile high -aud 1 \
 -b:v:2 1000k -c:v h264_qsv -a53cc 1 -rdo 1 -pic_timing_sei 1
 -recovery_point_sei 1 -profile high -aud 1 \
 -b:v:3 875k -c:v h264_qsv -a53cc 1 -rdo 1 -pic_timing_sei 1
 -recovery_point_sei 1 -profile high -aud 1 \
 -b:v:4 750k -c:v h264_qsv -a53cc 1 -rdo 1 -pic_timing_sei 1
 -recovery_point_sei 1 -profile high -aud 1 \
 -b:v:5 640k -c:v h264_qsv -a53cc 1 -rdo 1 -pic_timing_sei 1
 -recovery_point_sei 1 -profile high -aud 1 \
 -c:a aac -b:a 128k -ar 48000 -ac 2 \
 -flags -global_header \
 -map "[v0]" -map "[v1]" -map "[v2]" -map "[v3]" -map "[v4]" -map "[v5]"
 -map 0:a:0 \
 -f mp4 -movflags frag_keyframe+empty_moov pipe: > test_channel

 }}}


 That outputs the encoder's content into a named pipe on the filesystem,
 whereas attempting to do the same with the tee muxer results in failure.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/7328>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker


More information about the FFmpeg-trac mailing list