[FFmpeg-devel] [PATCH] tests/fate-run: pass threads argument to tests using certain pseudo muxers (PR #20960)

[James Almer via ffmpeg-devel <ffmpeg-devel@ffmpeg.org>]

PR #20960 opened by James Almer (jamrial)
URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20960
Patch URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20960.patch


>From 8030577241e9439a1ee94c7b9bf1d3d205878d1f Mon Sep 17 00:00:00 2001
From: James Almer <jamrial@gmail.com>
Date: Tue, 18 Nov 2025 00:41:12 -0300
Subject: [PATCH 1/2] tests/fate/ffmpeg: remove max_muxing_queue_size option
 from fate-ffmpeg-attached_pics

It's a no-op given that the CLI will only look at that value after the size
threshold is reached, which is by default about 50mb, way bigger than the
output of this test.

Instead disable lavf's max_interleave_delta, which has a default of about 1
second worth of packets. This lets us remove the hardcoded threads values as
the output frame order will no longer change based on it (lavf's generic muxer
code will no longer drain buffered frames after 1 second worth of audio is
reached before it ever sees a video frame, which used to happen when enabling
multi threaded encoding).

Signed-off-by: James Almer <jamrial@gmail.com>
---
 tests/fate/ffmpeg.mak | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/fate/ffmpeg.mak b/tests/fate/ffmpeg.mak
index 57028a7936..270c99d857 100644
--- a/tests/fate/ffmpeg.mak
+++ b/tests/fate/ffmpeg.mak
@@ -7,7 +7,7 @@ fate-ffmpeg-filter_complex_audio: CMD = framecrc -auto_conversion_filters -filte
 
 # Ticket 6375, use case of NoX
 FATE_SAMPLES_FFMPEG-$(call FRAMECRC, MOV, PNG ALAC, ARESAMPLE_FILTER) += fate-ffmpeg-attached_pics
-fate-ffmpeg-attached_pics: CMD = threads=2 framecrc -i $(TARGET_SAMPLES)/lossless-audio/inside.m4a -threads 1 -max_muxing_queue_size 16 -af aresample
+fate-ffmpeg-attached_pics: CMD = framecrc -i $(TARGET_SAMPLES)/lossless-audio/inside.m4a -max_interleave_delta 0 -af aresample
 
 FATE_SAMPLES_FFMPEG-$(call FILTERDEMDEC, COLORKEY OVERLAY SCALE, MPEGPS IMAGE_PPM_PIPE, CAVS PPM, CAVSVIDEO_PARSER) += fate-ffmpeg-filter_colorkey
 fate-ffmpeg-filter_colorkey: tests/data/filtergraphs/colorkey
-- 
2.49.1


>From b80d92f29441c91edfe65c79f2fd54d93ab11fb4 Mon Sep 17 00:00:00 2001
From: James Almer <jamrial@gmail.com>
Date: Tue, 18 Nov 2025 00:43:23 -0300
Subject: [PATCH 2/2] tests/fate-run: pass threads argument to tests using
 certain pseudo muxers

---
 tests/fate-run.sh | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tests/fate-run.sh b/tests/fate-run.sh
index 6d1fe1185c..210fcc2eb5 100755
--- a/tests/fate-run.sh
+++ b/tests/fate-run.sh
@@ -162,15 +162,15 @@ ffprobe_demux(){
 }
 
 framecrc(){
-    ffmpeg "$@" -bitexact -f framecrc -
+    ffmpeg "$@" -bitexact -threads $threads -f framecrc -
 }
 
 ffmetadata(){
-    ffmpeg "$@" -bitexact -f ffmetadata -
+    ffmpeg "$@" -bitexact -threads $threads -f ffmetadata -
 }
 
 framemd5(){
-    ffmpeg "$@" -bitexact -f framemd5 -
+    ffmpeg "$@" -bitexact -threads $threads -f framemd5 -
 }
 
 crc(){
-- 
2.49.1

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