Report

The process report captures the log output from FFmpeg. The output is split up in a prelude and log output. The prelude is everything before the first progress line is printed. Everything after that is part of the log. The progress lines are not part of the report. Each log line comes with a timestamp of when it has been captured from the FFmpeg output.

The process report helps you to analyze any problems with the FFmpeg command line build from the inputs, outputs, and their options in the process configuration.

If the process is running, the FFmpeg logs will be written to the current report. As soon as the process finishes, the report will be moved to the history. The report history is also part of the response of this API endpoint.

You can define the number of log lines and how many reports should be kept in the history in the config for the datarhei Core in the ffmpeg.log section.

The following is an example of a report.

{
  "created_at": 1671109892,
  "history": [],
  "log": [
    [
      "1671111449",
      "[hls @ 0x7fa31f810240] Opening 'http://admin:xxx@localhost:8080/memfs/f13d9ff4-8ac1-458d-8d61-6e7d8ad06faf.m3u8' for writing"
    ],
    [
      "1671111449",
      "[hls @ 0x7fa31f810240] Opening 'http://admin:xxx@localhost:8080/memfs/f13d9ff4-8ac1-458d-8d61-6e7d8ad06faf.mp4' for writing"
    ],
    [
      "1671111451",
      "[hls @ 0x7fa31f810240] Opening 'http://admin:xxx@localhost:8080/memfs/f13d9ff4-8ac1-458d-8d61-6e7d8ad06faf_output_0_0778.mp4' for writing"
    ],
    [
      "1671111451",
      "[mp4 @ 0x7fa31f80ee40] Opening 'http://admin:xxx@localhost:8080/memfs/f13d9ff4-8ac1-458d-8d61-6e7d8ad06faf_output_0_0768.mp4' for writing"
    ],
    [
      "1671111451",
      "[hls @ 0x7fa31f810240] Opening 'http://admin:xxx@localhost:8080/memfs/f13d9ff4-8ac1-458d-8d61-6e7d8ad06faf.mp4' for writing"
    ],
    [
      "1671111453",
      "[hls @ 0x7fa31f810240] Opening 'http://admin:xxx@localhost:8080/memfs/f13d9ff4-8ac1-458d-8d61-6e7d8ad06faf_output_0_0779.mp4' for writing"
    ],
    [
      "1671111453",
      "[mp4 @ 0x7fa31f80ee40] Opening 'http://admin:xxx@localhost:8080/memfs/f13d9ff4-8ac1-458d-8d61-6e7d8ad06faf_output_0_0769.mp4' for writing"
    ],
    [
      "1671111453",
      "[hls @ 0x7fa31f810240] Opening 'http://admin:xxx@localhost:8080/memfs/f13d9ff4-8ac1-458d-8d61-6e7d8ad06faf.m3u8' for writing"
    ],
    ...
  ],
  "prelude": [
    "ffmpeg version 5.1.2 Copyright (c) 2000-2022 the FFmpeg developers",
    "  built with Apple clang version 14.0.0 (clang-1400.0.29.102)",
    "  configuration: --prefix=/usr/local/Cellar/ffmpeg/5.1.2 --enable-shared --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libdav1d --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librist --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox",
    "  libavutil      57. 28.100 / 57. 28.100",
    "  libavcodec     59. 37.100 / 59. 37.100",
    "  libavformat    59. 27.100 / 59. 27.100",
    "  libavdevice    59.  7.100 / 59.  7.100",
    "  libavfilter     8. 44.100 /  8. 44.100",
    "  libswscale      6.  7.100 /  6.  7.100",
    "  libswresample   4.  7.100 /  4.  7.100",
    "  libpostproc    56.  6.100 / 56.  6.100",
    "Input #0, lavfi, from 'testsrc2=rate=25:size=640x360':",
    "  Duration: N/A, start: 0.000000, bitrate: N/A",
    "  Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 25 tbr, 25 tbn",
    "Input #1, lavfi, from 'anullsrc=r=44100:cl=stereo':",
    "  Duration: N/A, start: 0.000000, bitrate: 705 kb/s",
    "  Stream #1:0: Audio: pcm_u8, 44100 Hz, stereo, u8, 705 kb/s",
    "Stream mapping:",
    "  Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))",
    "  Stream #1:0 -> #0:1 (pcm_u8 (native) -> aac (native))",
    "Press [q] to stop, [?] for help",
    "[libx264 @ 0x7fa31ef08540] using SAR=1/1",
    "[libx264 @ 0x7fa31ef08540] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2",
    "[libx264 @ 0x7fa31ef08540] profile Constrained Baseline, level 3.0, 4:2:0, 8-bit",
    "[libx264 @ 0x7fa31ef08540] 264 - core 164 r3095 baee400 - H.264/MPEG-4 AVC codec - Copyleft 2003-2022 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=4 lookahead_threads=4 sliced_threads=1 slices=4 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=50 keyint_min=26 scenecut=0 intra_refresh=0 rc_lookahead=0 rc=cbr mbtree=0 bitrate=1024 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=1024 vbv_bufsize=1024 nal_hrd=none filler=0 ip_ratio=1.40 aq=0",
    "[hls @ 0x7fa31f810240] Opening 'http://admin:xxx@localhost:8080/memfs/f13d9ff4-8ac1-458d-8d61-6e7d8ad06faf.mp4' for writing",
    "[http @ 0x7fa31f80fac0] HTTP error 404 Not Found",
    "Output #0, tee, to '[f=hls:start_number=0:hls_time=2:hls_list_size=6:hls_flags=append_list+delete_segments+program_date_time+independent_segments+temp_file:hls_delete_threshold=4:hls_segment_type=fmp4:hls_fmp4_init_filename=f13d9ff4-8ac1-458d-8d61-6e7d8ad06faf.mp4:hls_fmp4_init_resend=1:hls_segment_filename=http\\\\://admin\\\\:xxx@localhost\\\\:8080/memfs/f13d9ff4-8ac1-458d-8d61-6e7d8ad06faf_output_0_%04d.mp4:master_pl_name=f13d9ff4-8ac1-458d-8d61-6e7d8ad06faf.m3u8:master_pl_publish_rate=2:method=PUT]http://admin:xxx@localhost:8080/memfs/f13d9ff4-8ac1-458d-8d61-6e7d8ad06faf_output_0.m3u8|[f=flv]rtmp://localhost:1935/live/f13d9ff4-8ac1-458d-8d61-6e7d8ad06faf.stream?token=foobar|[f=mpegts]srt://localhost:6000?mode=caller\u0026transtype=live\u0026streamid=f13d9ff4-8ac1-458d-8d61-6e7d8ad06faf,mode:publish,token:abc':",
    "  Metadata:",
    "    title           : http://example.com:8080/f13d9ff4-8ac1-458d-8d61-6e7d8ad06faf/oembed.json",
    "    service_provider: datarhei-Restreamer",
    "    encoder         : Lavf59.27.100",
    "  Stream #0:0: Video: h264 ([7][0][0][0] / 0x0007), yuv420p(progressive), 640x360 [SAR 1:1 DAR 16:9], q=2-31, 1024 kb/s, 25 fps, 25 tbn",
    "    Metadata:",
    "      encoder         : Lavc59.37.100 libx264",
    "    Side data:",
    "      cpb: bitrate max/min/avg: 1024000/0/1024000 buffer size: 1024000 vbv_delay: N/A",
    "  Stream #0:1: Audio: aac (LC) ([10][0][0][0] / 0x000A), 44100 Hz, stereo, fltp, 64 kb/s",
    "    Metadata:",
    "      encoder         : Lavc59.37.100 aac"
  ]
}

Example: read the report of a process with the ID test:

Curl

curl http://127.0.0.1:8080/api/v3/process/test/report \
   -H 'accept: application/json' \
   -X GET

PyClient

from core_client import Client

client = Client(
    base_url="http://127.0.0.1:8080"
)
client.login()

core_process_test_report = client.v3_process_get_report(
    id="test"
)
print(core_process_test_report)

GoClient

import (
    "fmt"
    "github.com/datarhei/core-client-go/v16"
)

client, _ := coreclient.New(coreclient.Config{
    Address: "https://127.0.0.1:8080",
})

report, err := client.ProcessReport("test")
if err != nil {
    ...
}

fmt.Printf("%+v\n", report)

Description:

Get the logs of a process

Get the logs and the log history of a process.

GET//api/v3/process/{id}/report

Authorization

ApiKeyAuth

Path parameters

id*string

Process ID

Response

200400404

OK

Body

application/json

created_atinteger

historyarray of api.ProcessReportHistoryEntry (object)

logarray of array of string

preludearray of string

Request

JavaScriptCurlPython

const response = await fetch('//api/v3/process/{id}/report', {
    method: 'GET',
    headers: {},
});
const data = await response.json();

Response

200400404

{
  "history": [
    {
      "log": [
        [
          "text"
        ]
      ],
      "prelude": [
        "text"
      ]
    }
  ],
  "log": [
    [
      "text"
    ]
  ],
  "prelude": [
    "text"
  ]
}