Re: [FFmpeg-trac] #9766(avcodec:new): h264_qsv decoder does not work with RTSP

[FFmpeg]

#9766: h264_qsv decoder does not work with RTSP
---+---
 Reporter:  Steve Sampson  |Owner:  (none)
 Type:  defect |   Status:  new
 Priority:  normal |Component:  avcodec
  Version:  git-master |   Resolution:
 Keywords:  QSV RTSP   |   Blocked By:
 Blocking: |  Reproduced by developer:  0
Analyzed by developer:  0  |
---+---
Comment (by wenbin,chen):

 After commit ae06111d7406e541ac232318bcf50f8510a36f38. bsf can be used
 after demuxing.


 Add dump_extra bsf and pull stream like this:

 {{{
  ffmpeg -v verbose -bsf:v dump_extra -hwaccel qsv -i
 rtsp://localhost:8554/mystream -f null -
 }}}

 solve the problem on my side.
-- 
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Re: [FFmpeg-trac] #9766(avcodec:new): h264_qsv decoder does not work with RTSP

[FFmpeg]

#9766: h264_qsv decoder does not work with RTSP
---+---
 Reporter:  Steve Sampson  |Owner:  (none)
 Type:  defect |   Status:  new
 Priority:  normal |Component:  avcodec
  Version:  git-master |   Resolution:
 Keywords:  QSV RTSP   |   Blocked By:
 Blocking: |  Reproduced by developer:  0
Analyzed by developer:  0  |
---+---
Comment (by wenbin,chen):

 According to
 
https://spec.oneapi.io/onevpl/latest/API_ref/VPL_func_vid_decode.html#_CPPv431MFXVideoDECODE_DecodeFrameAsync10mfxSessionP12mfxBitstreamP16mfxFrameSurface1PP16mfxFrameSurface1P12mfxSyncPoint

 “Before decoding the first frame, a sequence header (sequence parameter
 set in H.264 or sequence header in MPEG-2 and VC-1) must be present. The
 function skips any bitstreams before it encounters the new sequence
 header”
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Re: [FFmpeg-trac] #9766(avcodec:new): h264_qsv decoder does not work with RTSP

[FFmpeg]

#9766: h264_qsv decoder does not work with RTSP
---+---
 Reporter:  Steve Sampson  |Owner:  (none)
 Type:  defect |   Status:  new
 Priority:  normal |Component:  avcodec
  Version:  git-master |   Resolution:
 Keywords:  QSV RTSP   |   Blocked By:
 Blocking: |  Reproduced by developer:  0
Analyzed by developer:  0  |
---+---
Comment (by wenbin,chen):

 Tried to reproduce the error.

 1. set up video server: using mediamtx :
 https://github.com/bluenviron/mediamtx
 2. push stream: ffmpeg -v verbose -re -stream_loop -1 -i input.mp4
 -c:v hevc_qsv -bsf:v extract_extradata=remove=1 -f rtsp
 rtsp://localhost:8554/mystream
 3. ffmpeg -v verbose -f rtsp -i rtsp://localhost:8554/mystream -f null
 - success
 4. ffmpeg -v verbose -hwaccel vaapi -f rtsp -i
 rtsp://localhost:8554/mystream -f null -  success after skip many frames
 (it relates to gop size)
 5. ffmpeg -v verbose -hwaccel qsv -f rtsp -i
 rtsp://localhost:8554/mystream -f null - fail ( error message

 {{{
 [hevc_qsv @ 0x559d42d69dd0] More data is required to decode header
 Last message repeated 3850 times
 }}}


 )

 "remove=1" means remove sps and pps from bitstream after extracting data.
 If i set remove=0 when push stream, qsv can successfully decode video
 stream.
 VPL may not be able to deal with stream without SPS and PPS, so it Keeps
 waiting for more data to decode header. I cannot reproduce the same error
 as reporter's.

 I suggest to use vaapi/d3d11va to decode video stream without SPS/PPS
 header as they use ffmpeg build-in parser to parse stream.
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Re: [FFmpeg-trac] #9766(avcodec:new): h264_qsv decoder does not work with RTSP

[FFmpeg]

#9766: h264_qsv decoder does not work with RTSP
---+---
 Reporter:  Steve Sampson  |Owner:  (none)
 Type:  defect |   Status:  new
 Priority:  normal |Component:  avcodec
  Version:  git-master |   Resolution:
 Keywords:  QSV RTSP   |   Blocked By:
 Blocking: |  Reproduced by developer:  0
Analyzed by developer:  0  |
---+---
Comment (by rtsp qsv):

 Error still present on:
 ffmpeg 5.1.2-3ubuntu1
 ffmpeg 6.0-6ubuntu1
 ffmpeg 6.1-4ubuntu1
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Re: [FFmpeg-trac] #9766(avcodec:new): h264_qsv decoder does not work with RTSP

[FFmpeg]

#9766: h264_qsv decoder does not work with RTSP
---+---
 Reporter:  Steve Sampson  |Owner:  (none)
 Type:  defect |   Status:  new
 Priority:  normal |Component:  avcodec
  Version:  git-master |   Resolution:
 Keywords:  QSV RTSP   |   Blocked By:
 Blocking: |  Reproduced by developer:  0
Analyzed by developer:  0  |
---+---
Comment (by rtsp qsv):

 Behavior still present on ffmpeg version 4.4.2-0ubuntu0.22.04.1
 Decoding rtsp stream fails with qsv_h264, works with h264 (native)
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Re: [FFmpeg-trac] #9766(avcodec:new): h264_qsv decoder does not work with RTSP

[FFmpeg]

#9766: h264_qsv decoder does not work with RTSP
---+---
 Reporter:  Steve Sampson  |Owner:  (none)
 Type:  defect |   Status:  new
 Priority:  normal |Component:  avcodec
  Version:  git-master |   Resolution:
 Keywords:  QSV RTSP   |   Blocked By:
 Blocking: |  Reproduced by developer:  0
Analyzed by developer:  0  |
---+---
Comment (by Steve Sampson):

 I just attached two logs with logging set to trace. The camera, computer,
 software and command line are all identical except the "PS Enabled"
 setting. When enabled, the decoding works. When disabled, decoding
 doesn't. I hope this helps narrow down the problem.
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Re: [FFmpeg-trac] #9766(avcodec:new): h264_qsv decoder does not work with RTSP

[FFmpeg]

#9766: h264_qsv decoder does not work with RTSP
---+---
 Reporter:  Steve Sampson  |Owner:  (none)
 Type:  defect |   Status:  new
 Priority:  normal |Component:  avcodec
  Version:  git-master |   Resolution:
 Keywords:  QSV RTSP   |   Blocked By:
 Blocking: |  Reproduced by developer:  0
Analyzed by developer:  0  |
---+---
Changes (by Steve Sampson):

 * Attachment "ffmpeg-axis-qsv-ps-enabled.txt" added.

 Log of latest FFMPEG with PS enabled
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Re: [FFmpeg-trac] #9766(avcodec:new): h264_qsv decoder does not work with RTSP

[FFmpeg]

#9766: h264_qsv decoder does not work with RTSP
---+---
 Reporter:  Steve Sampson  |Owner:  (none)
 Type:  defect |   Status:  new
 Priority:  normal |Component:  avcodec
  Version:  git-master |   Resolution:
 Keywords:  QSV RTSP   |   Blocked By:
 Blocking: |  Reproduced by developer:  0
Analyzed by developer:  0  |
---+---
Changes (by Steve Sampson):

 * Attachment "ffmpeg-axis-qsv-ps-disabled.txt" added.

 Log of latest FFMPEG with PS disabled
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Re: [FFmpeg-trac] #9766(avcodec:new): h264_qsv decoder does not work with RTSP

[FFmpeg]

#9766: h264_qsv decoder does not work with RTSP
---+---
 Reporter:  Steve Sampson  |Owner:  (none)
 Type:  defect |   Status:  new
 Priority:  normal |Component:  avcodec
  Version:  git-master |   Resolution:
 Keywords:  QSV RTSP   |   Blocked By:
 Blocking: |  Reproduced by developer:  0
Analyzed by developer:  0  |
---+---
Comment (by Steve Sampson):

 I just tried the build 2022-10-06-git-2c2aaa5bd0 downloaded from
 https://www.gyan.dev/ffmpeg/builds/

 I see exactly the same behavior as seen in 5.1.2.

 The camera model is AXIS P3265-LVE Dome Camera - 9mm. It has been updated
 with its latest firmware.

 It successfully decodes when QSV is not specified. It successfully decodes
 when PS Enabled = true. It fails when using QSV and PS Enabled = false.

 ffmpeg -i rtsp://root:pass@10.255.200.235/axis-
 media/media.amp?streamprofile=rthd -f null
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Re: [FFmpeg-trac] #9766(avcodec:new): h264_qsv decoder does not work with RTSP

[FFmpeg]

#9766: h264_qsv decoder does not work with RTSP
---+---
 Reporter:  Steve Sampson  |Owner:  (none)
 Type:  defect |   Status:  new
 Priority:  normal |Component:  avcodec
  Version:  git-master |   Resolution:
 Keywords:  QSV RTSP   |   Blocked By:
 Blocking: |  Reproduced by developer:  0
Analyzed by developer:  0  |
---+---
Comment (by Steve Sampson):

 The only difference in the two runs is that PS was enabled on the camera.
 Everything else remains exactly the same. This is running under Windows.
 If needed, I can re-run with addition logging (please indicate the command
 line that will give more logs)

 In the case where it fails (PS not enabled), the output basically repeats

 [h264_qsv @ 01b1753e5040] More data is required to decode header
 Last message repeated 791 times

 Until I hit Ctrl-C. The error message afterwards happens after Ctrl-C.
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Re: [FFmpeg-trac] #9766(avcodec:new): h264_qsv decoder does not work with RTSP

[FFmpeg]

#9766: h264_qsv decoder does not work with RTSP
---+---
 Reporter:  Steve Sampson  |Owner:  (none)
 Type:  defect |   Status:  new
 Priority:  normal |Component:  avcodec
  Version:  git-master |   Resolution:
 Keywords:  QSV RTSP   |   Blocked By:
 Blocking: |  Reproduced by developer:  0
Analyzed by developer:  0  |
---+---
Comment (by Steve Sampson):

 The output when PS Enabled (when it succeeds - same command line)


 ffmpeg -hwaccel qsv -c:v h264_qsv -i rtsp://root:pass@10.255.200.235/axis-
 media/media.amp?streamprofile=rthd -f null -
 ffmpeg version 5.1.2-full_build-www.gyan.dev Copyright (c) 2000-2022 the
 FFmpeg developers
   built with gcc 12.1.0 (Rev2, Built by MSYS2 project)
   configuration: --enable-gpl --enable-version3 --enable-static --disable-
 w32threads --disable-autodetect --enable-fontconfig --enable-iconv
 --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma
 --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt
 --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray
 --enable-libcaca --enable-sdl2 --enable-libaribb24 --enable-libdav1d
 --enable-libdavs2 --enable-libuavs3d --enable-libzvbi --enable-librav1e
 --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265
 --enable-libxavs2 --enable-libxvid --enable-libaom --enable-libjxl
 --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-
 libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-
 liblensfun --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-
 amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec
 --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-
 libshaderc --enable-vulkan --enable-libplacebo --enable-opencl --enable-
 libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-
 libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora
 --enable-libtwolame --enable-libvo-amrwbenc --enable-libilbc --enable-
 libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex
 --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite
 --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-
 chromaprint
   libavutil  57. 28.100 / 57. 28.100
   libavcodec 59. 37.100 / 59. 37.100
   libavformat59. 27.100 / 59. 27.100
   libavdevice59.  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
   libpostproc56.  6.100 / 56.  6.100
 WARNING: defaulting hwaccel_output_format to qsv for compatibility with
 old commandlines. This behaviour is DEPRECATED and will be removed in the
 future. Please explicitly set "-hwaccel_output_format qsv".
 Input #0, rtsp, from 'rtsp://root:pass@10.255.200.235/axis-
 media/media.amp?streamprofile=rthd':
   Metadata:
 title   : Session streamed with GStreamer
 comment : rtsp-server
   Duration: N/A, start: 0.040022, bitrate: N/A
   Stream #0:0: Video: h264 (High), yuvj420p(pc, bt709, progressive),
 1920x1080, 25 fps, 25 tbr, 90k tbn
 WARNING: defaulting child_device_type to AV_HWDEVICE_TYPE_DXVA2 for
 compatibility with old commandlines. This behaviour will be removed in the
 future. Please explicitly set device type via "-init_hw_device" option.
 Stream mapping:
   Stream #0:0 -> #0:0 (h264 (h264_qsv) -> wrapped_avframe (native))
 Press [q] to stop, [?] for help
 Output #0, null, to 'pipe:':
   Metadata:
 title   : Session streamed with GStreamer
 comment : rtsp-server
 encoder : Lavf59.27.100
   Stream #0:0: Video: wrapped_avframe, qsv(pc, bt709, progressive),
 1920x1080, q=2-31, 200 kb/s, 25 fps, 25 tbn
 Metadata:
   encoder : Lavc59.37.100 wrapped_avframe
 frame=  200 fps= 29 q=-0.0 Lsize=N/A time=00:00:08.24 bitrate=N/A speed=
 1.2x
 video:92kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: unknown
 Exiting normally, received signal 2.
-- 
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Re: [FFmpeg-trac] #9766(avcodec:new): h264_qsv decoder does not work with RTSP

[FFmpeg]

#9766: h264_qsv decoder does not work with RTSP
---+---
 Reporter:  Steve Sampson  |Owner:  (none)
 Type:  defect |   Status:  new
 Priority:  normal |Component:  avcodec
  Version:  git-master |   Resolution:
 Keywords:  QSV RTSP   |   Blocked By:
 Blocking: |  Reproduced by developer:  0
Analyzed by developer:  0  |
---+---
Comment (by Steve Sampson):

 I do not have the ability to build from head, but I did use a recent
 version.

 The output (including command line) is the following

 ffmpeg -hwaccel qsv -c:v h264_qsv -i rtsp://root:pass@10.255.200.235/axis-
 media/media.amp?streamprofile=rthd -f null -
 ffmpeg version 5.1.2-full_build-www.gyan.dev Copyright (c) 2000-2022 the
 FFmpeg developers
   built with gcc 12.1.0 (Rev2, Built by MSYS2 project)
   configuration: --enable-gpl --enable-version3 --enable-static --disable-
 w32threads --disable-autodetect --enable-fontconfig --enable-iconv
 --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma
 --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt
 --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray
 --enable-libcaca --enable-sdl2 --enable-libaribb24 --enable-libdav1d
 --enable-libdavs2 --enable-libuavs3d --enable-libzvbi --enable-librav1e
 --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265
 --enable-libxavs2 --enable-libxvid --enable-libaom --enable-libjxl
 --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-
 libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-
 liblensfun --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-
 amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec
 --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-
 libshaderc --enable-vulkan --enable-libplacebo --enable-opencl --enable-
 libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-
 libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora
 --enable-libtwolame --enable-libvo-amrwbenc --enable-libilbc --enable-
 libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex
 --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite
 --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-
 chromaprint
   libavutil  57. 28.100 / 57. 28.100
   libavcodec 59. 37.100 / 59. 37.100
   libavformat59. 27.100 / 59. 27.100
   libavdevice59.  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
   libpostproc56.  6.100 / 56.  6.100
 WARNING: defaulting hwaccel_output_format to qsv for compatibility with
 old commandlines. This behaviour is DEPRECATED and will be removed in the
 future. Please explicitly set "-hwaccel_output_format qsv".
 Input #0, rtsp, from 'rtsp://root:pass@10.255.200.235/axis-
 media/media.amp?streamprofile=rthd':
   Metadata:
 title   : Session streamed with GStreamer
 comment : rtsp-server
   Duration: N/A, start: 0.040022, bitrate: N/A
   Stream #0:0: Video: h264 (High), yuvj420p(pc, bt709, progressive),
 1920x1080, 25 fps, 25 tbr, 90k tbn
 WARNING: defaulting child_device_type to AV_HWDEVICE_TYPE_DXVA2 for
 compatibility with old commandlines. This behaviour will be removed in the
 future. Please explicitly set device type via "-init_hw_device" option.
 Stream mapping:
   Stream #0:0 -> #0:0 (h264 (h264_qsv) -> wrapped_avframe (native))
 Press [q] to stop, [?] for help
 [h264_qsv @ 01b1753e5040] More data is required to decode header
 Last message repeated 791 times
 [h264_qsv @ 01b1753e5040] video_get_buffer: image parameters invalid
 [h264_qsv @ 01b1753e5040] get_buffer() failed
 Error while decoding stream #0:0: Invalid argument
 Finishing stream 0:0 without any data written to it.
 Output #0, null, to 'pipe:':
   Metadata:
 title   : Session streamed with GStreamer
 comment : rtsp-server
 encoder : Lavf59.27.100
   Stream #0:0: Video: wrapped_avframe, yuvj420p, 1920x1080, q=2-31, 200
 kb/s, 25 fps, 25 tbn
 Metadata:
   encoder : Lavc59.37.100 wrapped_avframe
 frame=0 fps=0.0 q=0.0 Lsize=N/A time=00:00:00.00 bitrate=N/A speed=
 0x
 video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: unknown
 Output file is empty, nothing was encoded (check -ss / -t / -frames
 parameters if used)
 Exiting normally, received signal 2.
-- 
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Re: [FFmpeg-trac] #9766(avcodec:new): h264_qsv decoder does not work with RTSP

[FFmpeg]

#9766: h264_qsv decoder does not work with RTSP
---+---
 Reporter:  Steve Sampson  |Owner:  (none)
 Type:  defect |   Status:  new
 Priority:  normal |Component:  avcodec
  Version:  git-master |   Resolution:
 Keywords:  QSV RTSP   |   Blocked By:
 Blocking: |  Reproduced by developer:  0
Analyzed by developer:  0  |
---+---
Comment (by Carl Eugen Hoyos):

 Please test current FFmpeg git head and provide the command line you
 tested together with the complete, uncut console output to make this a
 valid ticket.
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Re: [FFmpeg-trac] #9766(avcodec:new): h264_qsv decoder does not work with RTSP

[FFmpeg]

#9766: h264_qsv decoder does not work with RTSP
---+---
 Reporter:  Steve Sampson  |Owner:  (none)
 Type:  defect |   Status:  new
 Priority:  normal |Component:  avcodec
  Version:  git-master |   Resolution:
 Keywords:  QSV RTSP   |   Blocked By:
 Blocking: |  Reproduced by developer:  0
Analyzed by developer:  0  |
---+---
Comment (by Steve Sampson):

 I tested with 5.1.2 and it still doesn't work, though this time FFMPEG
 just seems to wait for something that never comes.

  [h264_qsv @ 0251231a3480] More data is required to decode header
 Last message repeated 154 times

 Further investigation shows that there is a setting on the Axis camera "PS
 Enabled". When checked, FFMPEG works correctly and when unchecked it does
 not.

 According to one of our customer's experts on video, this setting adds SPS
 and PPS packets to the RTP streams (NALU type 7 and 8). This information
 ought to be read from the SPD but it appears it isn't when using the QSV
 code.
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Re: [FFmpeg-trac] #9766(avcodec:new): h264_qsv decoder does not work with RTSP

[FFmpeg]

#9766: h264_qsv decoder does not work with RTSP
---+---
 Reporter:  Steve Sampson  |Owner:  (none)
 Type:  defect |   Status:  new
 Priority:  normal |Component:  avcodec
  Version:  git-master |   Resolution:
 Keywords:  QSV RTSP   |   Blocked By:
 Blocking: |  Reproduced by developer:  0
Analyzed by developer:  0  |
---+---
Comment (by Steve Sampson):

 I managed to find some other cameras to test with. On one, it gives a few
 errors (-15) and then seems to work. On another, it just seems to work. It
 probably has something to do with the RTSP or RTP data. I don't know
 exactly how to go about debugging this to find out if there is something
 wrong with the source stream or if it is a bug in the code. It seems
 strange that it works when not using qsv (and in VLC) but I realize it
 could be something slightly out of spec with the original stream.
-- 
Ticket URL: 
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Re: [FFmpeg-trac] #9766(avcodec:new): h264_qsv decoder does not work with RTSP

[FFmpeg]

#9766: h264_qsv decoder does not work with RTSP
---+---
 Reporter:  Steve Sampson  |Owner:  (none)
 Type:  defect |   Status:  new
 Priority:  normal |Component:  avcodec
  Version:  git-master |   Resolution:
 Keywords:  QSV RTSP   |   Blocked By:
 Blocking: |  Reproduced by developer:  0
Analyzed by developer:  0  |
---+---
Changes (by Steve Sampson):

 * component:  undetermined => avcodec

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