[FFmpeg-devel] [PATCH 42/42] tests/fate/hevc: add a test for switching between single and multi-view

[Zhao Zhili]

> -----Original Message-----
> From: ffmpeg-devel <ffmpeg-devel-bounces at ffmpeg.org> On Behalf Of James Almer
> Sent: 2024年12月1日 0:51
> To: ffmpeg-devel at ffmpeg.org
> Subject: Re: [FFmpeg-devel] [PATCH 42/42] tests/fate/hevc: add a test for switching between single and multi-view
> 
> On 11/30/2024 1:38 PM, Zhao Zhili wrote:
> >
> >> -----Original Message-----
> >> From: ffmpeg-devel <ffmpeg-devel-bounces at ffmpeg.org> On Behalf Of Anton Khirnov
> >> Sent: 2024年8月27日 23:05
> >> To: ffmpeg-devel at ffmpeg.org
> >> Subject: [FFmpeg-devel] [PATCH 42/42] tests/fate/hevc: add a test for switching between single and multi-view
> >>
> >> ---
> >>   tests/fate/hevc.mak           |  10 ++
> >>   tests/ref/fate/hevc-mv-switch | 172 ++++++++++++++++++++++++++++++++++
> >>   2 files changed, 182 insertions(+)
> >>   create mode 100644 tests/ref/fate/hevc-mv-switch
> >>
> >> diff --git a/tests/fate/hevc.mak b/tests/fate/hevc.mak
> >> index e75fbd3c16..5631ded860 100644
> >> --- a/tests/fate/hevc.mak
> >> +++ b/tests/fate/hevc.mak
> >> @@ -273,6 +273,16 @@ FATE_HEVC-$(call FRAMECRC, HEVC, HEVC, HEVC_PARSER SCALE_FILTER) += fate-hevc-sm
> >>   fate-hevc-mv-nuh-layer-id: CMD = framecrc -i $(TARGET_SAMPLES)/hevc/mv_nuh_layer_id.bit -map 0:view:all
> >>   FATE_HEVC-$(call FRAMECRC, HEVC, HEVC) += fate-hevc-mv-nuh-layer-id
> >>
> >> +# NB: $\ at the end of line joins lines without adding whitespace;
> >> +# this trick is recommended by GNU make manual
> >> +fate-hevc-mv-switch: INPUT = \
> >> +$(TARGET_SAMPLES)/hevc-conformance/LS_A_Orange_2.bit|$\
> >> +$(TARGET_SAMPLES)/hevc/mv_nuh_layer_id.bit|$\
> >> +$(TARGET_SAMPLES)/hevc-conformance/NoOutPrior_B_Qualcomm_1.bit|$\
> >> +$(TARGET_SAMPLES)/hevc-conformance/MVHEVCS_A.bit
> >> +fate-hevc-mv-switch: CMD = framecrc -i "concat:$(INPUT)" -fps_mode passthrough -map 0:vidx:0 -map 0:vidx:1
> >> +FATE_HEVC-$(call FRAMECRC, HEVC, HEVC, CONCAT_PROTOCOL) += fate-hevc-mv-switch
> >
> > The test failed when run with msys2, because msys2 only convert the first sample path to Windows style path:
> 
> It shouldn't convert any at all.
> 
> >
> > [in#0 @ 0000028FF3412EC0] Error opening input: No such file or directory
> > Error opening input file
> concat;D:\bin\msys\home\quink\work\ffmpeg-fate-sample\hevc-conformance\LS_A_Orange_2.bit|\home\quink\work\ffmpeg-fate-sam
> ple\hevc\mv_nuh_layer_id.bit|\home\quink\work\ffmpeg-fate-sample\hevc-conformance\NoOutPrior_B_Qualcomm_1.bit|\home\quin
> k\work\ffmpeg-fate-sample\hevc-conformance\MVHEVCS_A.bit.
> 
> I can't reproduce this on msys2 locally. Have you tried using a relative
> path for SAMPLES?

Doesn't work.

[in#0 @ 000001354318E3C0] Error opening input: No such file or directory
Error opening input file concat;..\..\ffmpeg-fate-sample\hevc-conformance\LS_A_Orange_2.bit|..\..\ffmpeg-fate-sample\hevc\mv_nuh_layer_id.bit|..\..\ffmpeg-fate-sample\hevc-conformance\NoOutPrior_B_Qualcomm_1.bit|..\..\ffmpeg-fate-sample\hevc-conformance\MVHEVCS_A.bit.
Error opening input files: No such file or directory
threads=1

ffmpeg source code is at $HOME/work/ffmpeg.
Build directory is $HOME/work/ffmpe/build.
Fate sample is at $HOME/work/ffmpeg-fate-sample.

The only workaround I found is copy fate sample to $HOME/work/ffmpe/build/ffmpeg-fate-sample, without absolute path or relative path prefix.