#11132: TCP multi-client mode does not work
-------------------------------------+-------------------------------------
Reporter: | Type: defect
GermanGeraskin |
Status: new | Priority: normal
Component: | Version:
undetermined | unspecified
Keywords: tcp, multi- | Blocked By:
client |
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
### What I was trying to accomplish
I am trying to transfer video data via TCP connection.
### The problem I encountered
FFmpeg resets the TCP connection if the *multi-client* mode is used
(`listen=2`).
The [documentation](https://ffmpeg.org/ffmpeg-all.html#toc-tcp) states the
following:
> listen=2|1|0
> Listen for an incoming connection. 0 disables listen, 1 enables listen
in single client mode, 2 enables listen in multi-client mode. Default
value is 0.
### The exact command line I am using
ffmpeg **server**:
```shell
./ffmpeg \
-v 9 \
-loglevel 99 \
-f rawvideo \
-video_size 1920x1080 \
-pixel_format yuv420p \
-framerate 25 \
-i 'tcp://127.0.0.1:19010?listen=2' \
-pix_fmt yuv420p \
-c:v h264_nvenc \
-preset p4 \
-rc vbr \
-cq 30 \
-an \
-f flv \
rtmp://127.0.0.1:1935/temp/qqq
```
ffmpeg **client**:
```shell
./ffmpeg \
-v 9 \
-loglevel 99 \
-f decklink \
-format_code Hp25 \
-i 'DeckLink Quad (1)' \
-pix_fmt yuv420p \
-r 25 \
-f rawvideo \
tcp://127.0.0.1:19010?tcp_nodelay=1
```
### Console output
ffmpeg **server**:
```shell
./ffmpeg \
> -v 9 \
> -loglevel 99 \
> -f rawvideo \
> -video_size 1920x1080 \
> -pixel_format yuv420p \
> -framerate 25 \
> -i 'tcp://127.0.0.1:19010?listen=2' \
> -pix_fmt yuv420p \
> -c:v h264_nvenc \
> -preset p4 \
> -rc vbr \
> -cq 30 \
> -an \
> -f flv \
> rtmp://127.0.0.1:1935/temp/qqq
ffmpeg version n7.0.2 Copyright (c) 2000-2024 the FFmpeg developers
built with gcc 11 (Ubuntu 11.4.0-1ubuntu1~22.04)
configuration: --pkg-config-flags=--static --extra-
cflags=-I/usr/include/DeckLink --extra-libs='-lpthread -lm -ldl' --ld=g++
--enable-gpl --enable-nonfree --enable-pthreads --enable-avfilter
--enable-libx264 --enable-nvenc --enable-decklink --enable-ffplay
--enable-libzmq --enable-gnutls --enable-libass --enable-libfdk-aac
--enable-libfreetype --enable-libmp3lame --enable-libopus --enable-
libvorbis --enable-libvpx --enable-libx264 --enable-libx265
libavutil 59. 8.100 / 59. 8.100
libavcodec 61. 3.100 / 61. 3.100
libavformat 61. 1.100 / 61. 1.100
libavdevice 61. 1.100 / 61. 1.100
libavfilter 10. 1.100 / 10. 1.100
libswscale 8. 1.100 / 8. 1.100
libswresample 5. 1.100 / 5. 1.100
libpostproc 58. 1.100 / 58. 1.100
Splitting the commandline.
Reading option '-v' ... matched as option 'v' (set logging level) with
argument '9'.
Reading option '-loglevel' ... matched as option 'loglevel' (set logging
level) with argument '99'.
Reading option '-f' ... matched as option 'f' (force container format
(auto-detected otherwise)) with argument 'rawvideo'.
Reading option '-video_size' ... matched as AVOption 'video_size' with
argument '1920x1080'.
Reading option '-pixel_format' ... matched as AVOption 'pixel_format' with
argument 'yuv420p'.
Reading option '-framerate' ... matched as AVOption 'framerate' with
argument '25'.
Reading option '-i' ... matched as input url with argument
'tcp://127.0.0.1:19010?listen=2'.
Reading option '-pix_fmt' ... matched as option 'pix_fmt' (set pixel
format) with argument 'yuv420p'.
Reading option '-c:v' ... matched as option 'c' (select encoder/decoder
('copy' to copy stream without reencoding)) with argument 'h264_nvenc'.
Reading option '-preset' ... matched as AVOption 'preset' with argument
'p4'.
Reading option '-rc' ... matched as AVOption 'rc' with argument 'vbr'.
Reading option '-cq' ... matched as AVOption 'cq' with argument '30'.
Reading option '-an' ... matched as option 'an' (disable audio) with
argument '1'.
Reading option '-f' ... matched as option 'f' (force container format
(auto-detected otherwise)) with argument 'flv'.
Reading option 'rtmp://127.0.0.1:1935/temp/qqq' ... matched as output url.
Finished splitting the commandline.
Parsing a group of options: global .
Applying option v (set logging level) with argument 9.
Successfully parsed a group of options.
Parsing a group of options: input url tcp://127.0.0.1:19010?listen=2.
Applying option f (force container format (auto-detected otherwise)) with
argument rawvideo.
Successfully parsed a group of options.
Opening an input file: tcp://127.0.0.1:19010?listen=2.
[rawvideo @ 0x555b20ecc040] Opening 'tcp://127.0.0.1:19010?listen=2' for
reading
[tcp @ 0x555b20ecc8c0] No default whitelist set
[rawvideo @ 0x555b20ecc040] Before avformat_find_stream_info() pos: 0
bytes read:0 seeks:0 nb_streams:1
[rawvideo @ 0x555b20ecc040] stream 0: start_time: NOPTS duration: NOPTS
[rawvideo @ 0x555b20ecc040] format: start_time: NOPTS duration: NOPTS
(estimate from bit rate) bitrate=622080 kb/s
[rawvideo @ 0x555b20ecc040] After avformat_find_stream_info() pos: 0 bytes
read:0 seeks:0 frames:0
Input #0, rawvideo, from 'tcp://127.0.0.1:19010?listen=2':
Duration: N/A, bitrate: 622080 kb/s
Stream #0:0, 0, 1/25: Video: rawvideo, 1 reference frame (I420 /
0x30323449), yuv420p, 1920x1080, 0/1, 622080 kb/s, 25 tbr, 25 tbn
Successfully opened the file.
Parsing a group of options: output url rtmp://127.0.0.1:1935/temp/qqq.
Applying option pix_fmt (set pixel format) with argument yuv420p.
Applying option c:v (select encoder/decoder ('copy' to copy stream without
reencoding)) with argument h264_nvenc.
Applying option an (disable audio) with argument 1.
Applying option f (force container format (auto-detected otherwise)) with
argument flv.
Successfully parsed a group of options.
Opening an output file: rtmp://127.0.0.1:1935/temp/qqq.
[out#0/flv @ 0x555b20edecc0] No explicit maps, mapping streams
automatically...
[vost#0:0/h264_nvenc @ 0x555b20edf980] Created video stream from input
stream 0:0
[rtmp @ 0x555b20f00240] No default whitelist set
[tcp @ 0x555b20effdc0] No default whitelist set
[tcp @ 0x555b20effdc0] Original list of addresses:
[tcp @ 0x555b20effdc0] Address 127.0.0.1 port 1935
[tcp @ 0x555b20effdc0] Interleaved list of addresses:
[tcp @ 0x555b20effdc0] Address 127.0.0.1 port 1935
[tcp @ 0x555b20effdc0] Starting connection attempt to 127.0.0.1 port 1935
[tcp @ 0x555b20effdc0] Successfully connected to 127.0.0.1 port 1935
[rtmp @ 0x555b20f00240] Handshaking...
[rtmp @ 0x555b20f00240] Type answer 3
[rtmp @ 0x555b20f00240] Server version 3.0.1.1
[rtmp @ 0x555b20f00240] Proto = rtmp, path = /temp/qqq, app = temp, fname
= qqq
[rtmp @ 0x555b20f00240] Window acknowledgement size = 2500000
[rtmp @ 0x555b20f00240] Max sent, unacked = 2500000
[rtmp @ 0x555b20f00240] New incoming chunk size = 4096
[rtmp @ 0x555b20f00240] Releasing stream...
[rtmp @ 0x555b20f00240] FCPublish stream...
[rtmp @ 0x555b20f00240] Creating stream...
[rtmp @ 0x555b20f00240] Sending publish command for 'qqq'
Successfully opened the file.
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (h264_nvenc))
[vost#0:0/h264_nvenc @ 0x555b20edf980] Starting thread...
[vf#0:0 @ 0x555b20efc540] Starting thread...
[vist#0:0/rawvideo @ 0x555b20ede5c0] [dec:rawvideo @ 0x555b20efe100]
Starting thread...
[in#0/rawvideo @ 0x555b20ecbd00] Starting thread...
Press [q] to stop, [?] for help
[in#0/rawvideo @ 0x555b20ecbd00] Error during demuxing: Transport endpoint
is not connected
[in#0/rawvideo @ 0x555b20ecbd00] Terminating thread with return code 0
(success)
[vist#0:0/rawvideo @ 0x555b20ede5c0] [dec:rawvideo @ 0x555b20efe100]
Decoder thread received EOF packet
[vist#0:0/rawvideo @ 0x555b20ede5c0] [dec:rawvideo @ 0x555b20efe100]
Decoder returned EOF, finishing
[vist#0:0/rawvideo @ 0x555b20ede5c0] [dec:rawvideo @ 0x555b20efe100]
Terminating thread with return code 0 (success)
detected 40 logical cores
[graph 0 input from stream 0:0 @ 0x7f6a4c003900] Setting 'video_size' to
value '1920x1080'
[graph 0 input from stream 0:0 @ 0x7f6a4c003900] Setting 'pix_fmt' to
value '0'
[graph 0 input from stream 0:0 @ 0x7f6a4c003900] Setting 'time_base' to
value '1/25'
[graph 0 input from stream 0:0 @ 0x7f6a4c003900] Setting 'pixel_aspect' to
value '0/1'
[graph 0 input from stream 0:0 @ 0x7f6a4c003900] Setting 'colorspace' to
value '2'
[graph 0 input from stream 0:0 @ 0x7f6a4c003900] Setting 'range' to value
'0'
[graph 0 input from stream 0:0 @ 0x7f6a4c003900] Setting 'frame_rate' to
value '25/1'
[graph 0 input from stream 0:0 @ 0x7f6a4c003900] w:1920 h:1080
pixfmt:yuv420p tb:1/25 fr:25/1 sar:0/1 csp:unknown range:unknown
[format @ 0x7f6a4c005340] Setting 'pix_fmts' to value 'yuv420p'
[AVFilterGraph @ 0x7f6a4c000fc0] query_formats: 4 queried, 9 merged, 0
already done, 0 delayed
[out_0_0 @ 0x7f6a4c005040] EOF on sink link out_0_0:default.
[vf#0:0 @ 0x555b20efc540] Filtergraph returned EOF, finishing
[vf#0:0 @ 0x555b20efc540] All consumers returned EOF
[vost#0:0/h264_nvenc @ 0x555b20edf980] No filtered frames for output
stream, trying to initialize anyway.
[h264_nvenc @ 0x555b20edfec0] Loaded lib: libcuda.so.1
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuInit
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuDriverGetVersion
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuDeviceGetCount
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuDeviceGet
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuDeviceGetAttribute
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuDeviceGetName
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuDeviceComputeCapability
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuCtxCreate_v2
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuCtxGetCurrent
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuCtxSetLimit
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuCtxPushCurrent_v2
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuCtxPopCurrent_v2
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuCtxDestroy_v2
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuMemAlloc_v2
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuMemAllocPitch_v2
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuMemAllocManaged
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuMemsetD8Async
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuMemFree_v2
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuMemcpy
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuMemcpyAsync
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuMemcpy2D_v2
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuMemcpy2DAsync_v2
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuMemcpyHtoD_v2
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuMemcpyHtoDAsync_v2
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuMemcpyDtoH_v2
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuMemcpyDtoHAsync_v2
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuMemcpyDtoD_v2
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuMemcpyDtoDAsync_v2
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuGetErrorName
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuGetErrorString
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuCtxGetDevice
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuDevicePrimaryCtxRetain
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuDevicePrimaryCtxRelease
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuDevicePrimaryCtxSetFlags
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuDevicePrimaryCtxGetState
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuDevicePrimaryCtxReset
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuStreamCreate
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuStreamQuery
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuStreamSynchronize
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuStreamDestroy_v2
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuStreamAddCallback
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuStreamWaitEvent
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuEventCreate
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuEventDestroy_v2
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuEventSynchronize
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuEventQuery
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuEventRecord
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuLaunchKernel
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuLinkCreate
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuLinkAddData
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuLinkComplete
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuLinkDestroy
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuModuleLoadData
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuModuleUnload
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuModuleGetFunction
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuModuleGetGlobal
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuTexObjectCreate
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuTexObjectDestroy
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuGLGetDevices_v2
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuGraphicsGLRegisterImage
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuGraphicsUnregisterResource
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuGraphicsMapResources
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuGraphicsUnmapResources
[h264_nvenc @ 0x555b20edfec0] Loaded sym:
cuGraphicsSubResourceGetMappedArray
[h264_nvenc @ 0x555b20edfec0] Loaded sym:
cuGraphicsResourceGetMappedPointer_v2
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuDeviceGetUuid
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuDeviceGetUuid_v2
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuDeviceGetLuid
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuDeviceGetByPCIBusId
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuDeviceGetPCIBusId
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuImportExternalMemory
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuDestroyExternalMemory
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuExternalMemoryGetMappedBuffer
[h264_nvenc @ 0x555b20edfec0] Loaded sym:
cuExternalMemoryGetMappedMipmappedArray
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuMipmappedArrayGetLevel
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuMipmappedArrayDestroy
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuImportExternalSemaphore
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuDestroyExternalSemaphore
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuSignalExternalSemaphoresAsync
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuWaitExternalSemaphoresAsync
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuArrayCreate_v2
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuArray3DCreate_v2
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuArrayDestroy
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuEGLStreamProducerConnect
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuEGLStreamProducerDisconnect
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuEGLStreamConsumerDisconnect
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuEGLStreamProducerPresentFrame
[h264_nvenc @ 0x555b20edfec0] Loaded sym: cuEGLStreamProducerReturnFrame
[h264_nvenc @ 0x555b20edfec0] Loaded lib: libnvidia-encode.so.1
[h264_nvenc @ 0x555b20edfec0] Loaded sym: NvEncodeAPICreateInstance
[h264_nvenc @ 0x555b20edfec0] Loaded sym:
NvEncodeAPIGetMaxSupportedVersion
[h264_nvenc @ 0x555b20edfec0] Loaded Nvenc version 12.2
[h264_nvenc @ 0x555b20edfec0] Nvenc initialized successfully
[h264_nvenc @ 0x555b20edfec0] Calling dl_fn->cuda_dl->cuInit(0)
[h264_nvenc @ 0x555b20edfec0] Calling
dl_fn->cuda_dl->cuDeviceGetCount(&nb_devices)
[h264_nvenc @ 0x555b20edfec0] 2 CUDA capable devices found
[h264_nvenc @ 0x555b20edfec0] Calling
dl_fn->cuda_dl->cuDeviceGet(&cu_device, idx)
[h264_nvenc @ 0x555b20edfec0] Calling
dl_fn->cuda_dl->cuDeviceGetName(name, sizeof(name), cu_device)
[h264_nvenc @ 0x555b20edfec0] Calling
dl_fn->cuda_dl->cuDeviceComputeCapability(&major, &minor, cu_device)
[h264_nvenc @ 0x555b20edfec0] [ GPU #0 - < Quadro P2000 > has Compute SM
6.1 ]
[h264_nvenc @ 0x555b20edfec0] Calling
dl_fn->cuda_dl->cuCtxCreate(&ctx->cu_context_internal, 0, cu_device)
[h264_nvenc @ 0x555b20edfec0] Calling
dl_fn->cuda_dl->cuCtxPopCurrent(&dummy)
[h264_nvenc @ 0x555b20edfec0] supports NVENC
[h264_nvenc @ 0x555b20edfec0] CQ(7680) mode enabled.
[h264_nvenc @ 0x555b20edfec0] Calling
dl_fn->cuda_dl->cuCtxPushCurrent(ctx->cu_context)
[h264_nvenc @ 0x555b20edfec0] Calling
dl_fn->cuda_dl->cuCtxPopCurrent(&dummy)
[h264_nvenc @ 0x555b20edfec0] Calling
dl_fn->cuda_dl->cuCtxPushCurrent(ctx->cu_context)
[h264_nvenc @ 0x555b20edfec0] Calling
dl_fn->cuda_dl->cuCtxPopCurrent(&dummy)
Output #0, flv, to 'rtmp://127.0.0.1:1935/temp/qqq':
Metadata:
encoder : Lavf61.1.100
Stream #0:0, 0, 1/1000: Video: h264 (Main), 1 reference frame
([7][0][0][0] / 0x0007), yuv420p(progressive), 1920x1080, 0/1, q=2-31, 25
fps, 1k tbn
Metadata:
encoder : Lavc61.3.100 h264_nvenc
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
[out#0/flv @ 0x555b20edecc0] Starting thread...
[vost#0:0/h264_nvenc @ 0x555b20edf980] Encoder thread received EOF
[h264_nvenc @ 0x555b20edfec0] Calling
dl_fn->cuda_dl->cuCtxPushCurrent(ctx->cu_context)
[h264_nvenc @ 0x555b20edfec0] Calling
dl_fn->cuda_dl->cuCtxPopCurrent(&dummy)
[vost#0:0/h264_nvenc @ 0x555b20edf980] Terminating thread with return code
0 (success)
[vf#0:0 @ 0x555b20efc540] Terminating thread with return code 0 (success)
[out#0/flv @ 0x555b20edecc0] All streams finished
[out#0/flv @ 0x555b20edecc0] Terminating thread with return code 0
(success)
[flv @ 0x555b20edee00] Failed to update header with correct duration.
[flv @ 0x555b20edee00] Failed to update header with correct filesize.
[AVIOContext @ 0x555b20f01140] Statistics: 303 bytes written, 0 seeks, 2
writeouts
[rtmp @ 0x555b20f00240] UnPublishing stream...
[rtmp @ 0x555b20f00240] Deleting stream...
[out#0/flv @ 0x555b20edecc0] Output file #0
(rtmp://127.0.0.1:1935/temp/qqq):
[out#0/flv @ 0x555b20edecc0] Output stream #0:0 (video): 0 frames
encoded; 0 packets muxed (0 bytes);
[out#0/flv @ 0x555b20edecc0] Total: 0 packets (0 bytes) muxed
[out#0/flv @ 0x555b20edecc0] video:0KiB audio:0KiB subtitle:0KiB other
streams:0KiB global headers:0KiB muxing overhead: unknown
[out#0/flv @ 0x555b20edecc0] Output file is empty, nothing was
encoded(check -ss / -t / -frames parameters if used)
frame= 0 fps=0.0 q=0.0 Lsize= 0KiB time=N/A bitrate=N/A speed=N/A
[h264_nvenc @ 0x555b20edfec0] Calling
dl_fn->cuda_dl->cuCtxPushCurrent(ctx->cu_context)
[h264_nvenc @ 0x555b20edfec0] Calling
dl_fn->cuda_dl->cuCtxPopCurrent(&dummy)
[h264_nvenc @ 0x555b20edfec0] Calling
dl_fn->cuda_dl->cuCtxDestroy(ctx->cu_context_internal)
[h264_nvenc @ 0x555b20edfec0] Nvenc unloaded
[in#0/rawvideo @ 0x555b20ecbd00] Input file #0
(tcp://127.0.0.1:19010?listen=2):
[in#0/rawvideo @ 0x555b20ecbd00] Input stream #0:0 (video): 0 packets
read (0 bytes); 0 frames decoded; 0 decode errors;
[in#0/rawvideo @ 0x555b20ecbd00] Total: 0 packets (0 bytes) demuxed
[AVIOContext @ 0x555b20edcd80] Statistics: 0 bytes read, 0 seeks
```
ffmpeg **client**:
```shell
./ffmpeg \
> -v 9 \
> -loglevel 99 \
> -f decklink \
> -format_code Hp25 \
> -i 'DeckLink Quad (1)' \
> -pix_fmt yuv420p \
> -r 25 \
> -f rawvideo \
> tcp://127.0.0.1:19010?tcp_nodelay=1
ffmpeg version n7.0.2 Copyright (c) 2000-2024 the FFmpeg developers
built with gcc 11 (Ubuntu 11.4.0-1ubuntu1~22.04)
configuration: --pkg-config-flags=--static --extra-
cflags=-I/usr/include/DeckLink --extra-libs='-lpthread -lm -ldl' --ld=g++
--enable-gpl --enable-nonfree --enable-pthreads --enable-avfilter
--enable-libx264 --enable-nvenc --enable-decklink --enable-ffplay
--enable-libzmq --enable-gnutls --enable-libass --enable-libfdk-aac
--enable-libfreetype --enable-libmp3lame --enable-libopus --enable-
libvorbis --enable-libvpx --enable-libx264 --enable-libx265
libavutil 59. 8.100 / 59. 8.100
libavcodec 61. 3.100 / 61. 3.100
libavformat 61. 1.100 / 61. 1.100
libavdevice 61. 1.100 / 61. 1.100
libavfilter 10. 1.100 / 10. 1.100
libswscale 8. 1.100 / 8. 1.100
libswresample 5. 1.100 / 5. 1.100
libpostproc 58. 1.100 / 58. 1.100
Splitting the commandline.
Reading option '-v' ... matched as option 'v' (set logging level) with
argument '9'.
Reading option '-loglevel' ... matched as option 'loglevel' (set logging
level) with argument '99'.
Reading option '-f' ... matched as option 'f' (force container format
(auto-detected otherwise)) with argument 'decklink'.
Reading option '-format_code' ... matched as AVOption 'format_code' with
argument 'Hp25'.
Reading option '-i' ... matched as input url with argument 'DeckLink Quad
(1)'.
Reading option '-pix_fmt' ... matched as option 'pix_fmt' (set pixel
format) with argument 'yuv420p'.
Reading option '-r' ... matched as option 'r' (override input
framerate/convert to given output framerate (Hz value, fraction or
abbreviation)) with argument '25'.
Reading option '-f' ... matched as option 'f' (force container format
(auto-detected otherwise)) with argument 'rawvideo'.
Reading option 'tcp://127.0.0.1:19010?tcp_nodelay=1' ... matched as output
url.
Finished splitting the commandline.
Parsing a group of options: global .
Applying option v (set logging level) with argument 9.
Successfully parsed a group of options.
Parsing a group of options: input url DeckLink Quad (1).
Applying option f (force container format (auto-detected otherwise)) with
argument decklink.
Successfully parsed a group of options.
Opening an input file: DeckLink Quad (1).
[decklink @ 0x55e3e8fcff40] Trying to find mode for frame size 0x0, frame
timing 0/0, field order 0, direction 0, format code Hp25
[decklink @ 0x55e3e8fcff40] Found Decklink mode 1920 x 1080 with rate
25.00
[decklink @ 0x55e3e8fcff40] Using 2 input audio channels
[decklink @ 0x55e3e8fcff40] Frame received (#1) - No input signal detected
- Frames dropped 1
[decklink @ 0x55e3e8fcff40] Probe buffer size limit of 5000000 bytes
reached
[decklink @ 0x55e3e8fcff40] stream 0: start_time: 0 duration: NOPTS
[decklink @ 0x55e3e8fcff40] stream 1: start_time: 0 duration: NOPTS
[decklink @ 0x55e3e8fcff40] format: start_time: 0 duration: NOPTS
(estimate from bit rate) bitrate=830976 kb/s
[aist#0:0/pcm_s16le @ 0x55e3e8fef240] Guessed Channel Layout: stereo
Input #0, decklink, from 'DeckLink Quad (1)':
Duration: N/A, start: 0.000000, bitrate: 830976 kb/s
Stream #0:0, 1, 1/1000000: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536
kb/s
Stream #0:1, 2, 1/1000000: Video: rawvideo, 1 reference frame (UYVY /
0x59565955), uyvy422(progressive), 1920x1080, 0/1, 829440 kb/s, 25 tbr,
1000k tbn
Successfully opened the file.
Parsing a group of options: output url
tcp://127.0.0.1:19010?tcp_nodelay=1.
Applying option pix_fmt (set pixel format) with argument yuv420p.
Applying option r (override input framerate/convert to given output
framerate (Hz value, fraction or abbreviation)) with argument 25.
Applying option f (force container format (auto-detected otherwise)) with
argument rawvideo.
Successfully parsed a group of options.
Opening an output file: tcp://127.0.0.1:19010?tcp_nodelay=1.
[out#0/rawvideo @ 0x55e3e8ff5040] No explicit maps, mapping streams
automatically...
[vost#0:0/rawvideo @ 0x55e3e8ff5a80] Created video stream from input
stream 0:1
[tcp @ 0x55e3e901a780] No default whitelist set
[tcp @ 0x55e3e901a780] Original list of addresses:
[tcp @ 0x55e3e901a780] Address 127.0.0.1 port 19010
[tcp @ 0x55e3e901a780] Interleaved list of addresses:
[tcp @ 0x55e3e901a780] Address 127.0.0.1 port 19010
[tcp @ 0x55e3e901a780] Starting connection attempt to 127.0.0.1 port 19010
[tcp @ 0x55e3e901a780] Successfully connected to 127.0.0.1 port 19010
Successfully opened the file.
Stream mapping:
Stream #0:1 -> #0:0 (rawvideo (native) -> rawvideo (native))
[vost#0:0/rawvideo @ 0x55e3e8ff5a80] Starting thread...
[vf#0:0 @ 0x55e3e8ff0c80] Starting thread...
[vist#0:1/rawvideo @ 0x55e3e8ff4580] [dec:rawvideo @ 0x55e3e8ff28c0]
Starting thread...
[in#0/decklink @ 0x55e3e8fcfbc0] Starting thread...
Press [q] to stop, [?] for help
[rawvideo @ 0x55e3e90192c0] PACKET SIZE: 4147200, STRIDE: 3840
Last message repeated 1 times
detected 40 logical cores
[graph 0 input from stream 0:1 @ 0x7f89a0003b40] Setting 'video_size' to
value '1920x1080'
[graph 0 input from stream 0:1 @ 0x7f89a0003b40] Setting 'pix_fmt' to
value '15'
[graph 0 input from stream 0:1 @ 0x7f89a0003b40] Setting 'time_base' to
value '1/1000000'
[graph 0 input from stream 0:1 @ 0x7f89a0003b40] Setting 'pixel_aspect' to
value '0/1'
[graph 0 input from stream 0:1 @ 0x7f89a0003b40] Setting 'colorspace' to
value '2'
[graph 0 input from stream 0:1 @ 0x7f89a0003b40] Setting 'range' to value
'0'
[graph 0 input from stream 0:1 @ 0x7f89a0003b40] Setting 'frame_rate' to
value '25000/1000'
[graph 0 input from stream 0:1 @ 0x7f89a0003b40] w:1920 h:1080
pixfmt:uyvy422 tb:1/1000000 fr:25000/1000 sar:0/1 csp:unknown
range:unknown
[format @ 0x7f89a0005500] Setting 'pix_fmts' to value 'yuv420p'
[auto_scale_0 @ 0x7f89a00070c0] w:iw h:ih flags:'' interl:0
[format @ 0x7f89a0005500] auto-inserting filter 'auto_scale_0' between the
filter 'Parsed_null_0' and the filter 'format'
[AVFilterGraph @ 0x7f89a00011c0] query_formats: 4 queried, 6 merged, 3
already done, 0 delayed
[auto_scale_0 @ 0x7f89a00070c0] w:1920 h:1080 fmt:uyvy422 csp:unknown
range:unknown sar:0/1 -> w:1920 h:1080 fmt:yuv420p csp:unknown
range:unknown sar:0/1 flags:0x00000004
[graph 0 input from stream 0:1 @ 0x7f89a0003b40] video frame properties
congruent with link at pts_time: 0
Output #0, rawvideo, to 'tcp://127.0.0.1:19010?tcp_nodelay=1':
Metadata:
encoder : Lavf61.1.100
Stream #0:0, 0, 1/25: Video: rawvideo, 1 reference frame (I420 /
0x30323449), yuv420p(progressive), 1920x1080, 0/1, q=2-31, 622080 kb/s, 25
fps, 25 tbn
Metadata:
encoder : Lavc61.3.100 rawvideo
[out#0/rawvideo @ 0x55e3e8ff5040] Starting thread...
[rawvideo @ 0x55e3e90192c0] PACKET SIZE: 4147200, STRIDE: 3840
Last message repeated 9 times
[decklink @ 0x55e3e8fcff40] Frame received (#13) - Input returned - Frames
dropped 2peed=0.72x
[decklink @ 0x55e3e8fcff40] Unknown meta data DID = 0x51 SDID = 0x52
[rawvideo @ 0x55e3e90192c0] PACKET SIZE: 4147200, STRIDE: 3840
[decklink @ 0x55e3e8fcff40] Unknown meta data DID = 0x51 SDID = 0x52
[rawvideo @ 0x55e3e90192c0] PACKET SIZE: 4147200, STRIDE: 3840
[decklink @ 0x55e3e8fcff40] Unknown meta data DID = 0x51 SDID = 0x52
[rawvideo @ 0x55e3e90192c0] PACKET SIZE: 4147200, STRIDE: 3840
[decklink @ 0x55e3e8fcff40] Unknown meta data DID = 0x51 SDID = 0x52
[rawvideo @ 0x55e3e90192c0] PACKET SIZE: 4147200, STRIDE: 3840
[decklink @ 0x55e3e8fcff40] Unknown meta data DID = 0x51 SDID = 0x52
[rawvideo @ 0x55e3e90192c0] PACKET SIZE: 4147200, STRIDE: 3840
[decklink @ 0x55e3e8fcff40] Unknown meta data DID = 0x51 SDID = 0x52
[rawvideo @ 0x55e3e90192c0] PACKET SIZE: 4147200, STRIDE: 3840
[decklink @ 0x55e3e8fcff40] Unknown meta data DID = 0x51 SDID = 0x52
[rawvideo @ 0x55e3e90192c0] PACKET SIZE: 4147200, STRIDE: 3840
[decklink @ 0x55e3e8fcff40] Unknown meta data DID = 0x51 SDID = 0x52
[rawvideo @ 0x55e3e90192c0] PACKET SIZE: 4147200, STRIDE: 3840
[decklink @ 0x55e3e8fcff40] Unknown meta data DID = 0x51 SDID = 0x52
[rawvideo @ 0x55e3e90192c0] PACKET SIZE: 4147200, STRIDE: 3840
[vost#0:0/rawvideo @ 0x55e3e8ff5a80] Error submitting a packet to the
muxer: Connection reset by peer
Last message repeated 1 times
[out#0/rawvideo @ 0x55e3e8ff5040] Error muxing a packet
[out#0/rawvideo @ 0x55e3e8ff5040] Task finished with error code: -104
(Connection reset by peer)
[out#0/rawvideo @ 0x55e3e8ff5040] Terminating thread with return code -104
(Connection reset by peer)
[decklink @ 0x55e3e8fcff40] Unknown meta data DID = 0x51 SDID = 0x52
[in#0/decklink @ 0x55e3e8fcfbc0] Terminating thread with return code 0
(success)
[vist#0:1/rawvideo @ 0x55e3e8ff4580] [dec:rawvideo @ 0x55e3e8ff28c0]
Decoder thread received EOF packet
[vist#0:1/rawvideo @ 0x55e3e8ff4580] [dec:rawvideo @ 0x55e3e8ff28c0]
Decoder returned EOF, finishing
[vist#0:1/rawvideo @ 0x55e3e8ff4580] [dec:rawvideo @ 0x55e3e8ff28c0]
Terminating thread with return code 0 (success)
[out_0_0 @ 0x7f89a00051c0] EOF on sink link out_0_0:default.
[vf#0:0 @ 0x55e3e8ff0c80] Filtergraph returned EOF, finishing
[vf#0:0 @ 0x55e3e8ff0c80] All consumers returned EOF
[vost#0:0/rawvideo @ 0x55e3e8ff5a80] Encoder thread received EOF
[vost#0:0/rawvideo @ 0x55e3e8ff5a80] Terminating thread with return code 0
(success)
[vf#0:0 @ 0x55e3e8ff0c80] Terminating thread with return code 0 (success)
[out#0/rawvideo @ 0x55e3e8ff5040] Error writing trailer: Connection reset
by peer
[AVIOContext @ 0x55e3e8fef640] Statistics: 1769472 bytes written, 0 seeks,
95 writeouts
[out#0/rawvideo @ 0x55e3e8ff5040] Error closing file: Connection reset by
peer
[out#0/rawvideo @ 0x55e3e8ff5040] Output file #0
(tcp://127.0.0.1:19010?tcp_nodelay=1):
[out#0/rawvideo @ 0x55e3e8ff5040] Output stream #0:0 (video): 21 frames
encoded; 1 packets muxed (3110400 bytes);
[out#0/rawvideo @ 0x55e3e8ff5040] Total: 1 packets (3110400 bytes) muxed
[out#0/rawvideo @ 0x55e3e8ff5040] video:3038KiB audio:0KiB subtitle:0KiB
other streams:0KiB global headers:0KiB muxing overhead: unknown
frame= 1 fps=0.0 q=-0.0 Lsize= 1728KiB time=00:00:00.36
bitrate=39321.6kbits/s speed=0.445x
[in#0/decklink @ 0x55e3e8fcfbc0] Input file #0 (DeckLink Quad (1)):
[in#0/decklink @ 0x55e3e8fcfbc0] Input stream #0:1 (video): 22 packets
read (91238400 bytes); 21 frames decoded; 0 decode errors;
[in#0/decklink @ 0x55e3e8fcfbc0] Total: 22 packets (91238400 bytes)
demuxed
Conversion failed!
```
### Sufficient information
- The same command using *single client* mode (`listen=1`) works fine.
- I tested in `ffmpeg` versions `n7.0.2` and `n4.4`. They behave the same
way.
- When two `tcp` inputs are in use, the `ffmpeg` does NOT start listening
the second input until the first input establishes connection.
So it is impossible for `ffmpeg` client to connect to the second input
of the `ffmpeg` server.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/11132>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker_______________________________________________
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