avformat/matroskaenc: Don't waste bytes to Write Tag length fields

This is possible by using a dynamic buffer to write them;
said dynamic buffer is (re)used and reset as appropriate.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

20 files changed, 40 insertions, 40 deletions

diff --git a/tests/ref/fate/aac-autobsf-adtstoasc b/tests/ref/fate/aac-autobsf-adtstoasc
index b9bfb37142..8b6d9d96ee 100644
--- a/tests/ref/fate/aac-autobsf-adtstoasc
+++ b/tests/ref/fate/aac-autobsf-adtstoasc
@@ -1,5 +1,5 @@
-224607440d242dad567b8ee2ed3afeac *tests/data/fate/aac-autobsf-adtstoasc.matroska
-6651 tests/data/fate/aac-autobsf-adtstoasc.matroska
+29daa1e1985dac4baae0774a0b56149d *tests/data/fate/aac-autobsf-adtstoasc.matroska
+6644 tests/data/fate/aac-autobsf-adtstoasc.matroska
 #extradata 0:        2, 0x0030001c
 #tb 0: 1/1000
 #media_type 0: audio
diff --git a/tests/ref/fate/matroska-avoid-negative-ts b/tests/ref/fate/matroska-avoid-negative-ts
index f20918483c..129ea1be66 100644
--- a/tests/ref/fate/matroska-avoid-negative-ts
+++ b/tests/ref/fate/matroska-avoid-negative-ts
@@ -1,5 +1,5 @@
-804842437b2be0a1604ce33c6b08c800 *tests/data/fate/matroska-avoid-negative-ts.matroska
-973070 tests/data/fate/matroska-avoid-negative-ts.matroska
+fbe66be73d379073e0705891f290a6b2 *tests/data/fate/matroska-avoid-negative-ts.matroska
+973055 tests/data/fate/matroska-avoid-negative-ts.matroska
 #extradata 0:       22, 0x2885037c
 #tb 0: 1/1000
 #media_type 0: video
diff --git a/tests/ref/fate/matroska-dovi-write-config7 b/tests/ref/fate/matroska-dovi-write-config7
index 65c397b807..9207b14b5c 100644
--- a/tests/ref/fate/matroska-dovi-write-config7
+++ b/tests/ref/fate/matroska-dovi-write-config7
@@ -1,5 +1,5 @@
-7981e419c77ebd4180caafc0b45ade4d *tests/data/fate/matroska-dovi-write-config7.matroska
-72693 tests/data/fate/matroska-dovi-write-config7.matroska
+d23b8b0d0613a82ba36fdc27acf3ef5d *tests/data/fate/matroska-dovi-write-config7.matroska
+72672 tests/data/fate/matroska-dovi-write-config7.matroska
 #extradata 0:      116, 0x2b8d1669
 #extradata 1:      116, 0x2b8d1669
 #tb 0: 1/1000
diff --git a/tests/ref/fate/matroska-dovi-write-config8 b/tests/ref/fate/matroska-dovi-write-config8
index 9741921b4c..5feb7b8065 100644
--- a/tests/ref/fate/matroska-dovi-write-config8
+++ b/tests/ref/fate/matroska-dovi-write-config8
@@ -1,5 +1,5 @@
-a5f259b0d7590e1ef77e09c3a75d0801 *tests/data/fate/matroska-dovi-write-config8.matroska
-3600595 tests/data/fate/matroska-dovi-write-config8.matroska
+0047ca43aa8ab2948752e367f184dc1f *tests/data/fate/matroska-dovi-write-config8.matroska
+3600576 tests/data/fate/matroska-dovi-write-config8.matroska
 #extradata 0:      551, 0xa18acf66
 #extradata 1:        2, 0x00340022
 #tb 0: 1/1000
diff --git a/tests/ref/fate/matroska-dvbsub-remux b/tests/ref/fate/matroska-dvbsub-remux
index 7c543e5a7d..b7346b8f55 100644
--- a/tests/ref/fate/matroska-dvbsub-remux
+++ b/tests/ref/fate/matroska-dvbsub-remux
@@ -1,5 +1,5 @@
-e675d3a76a4720f3e65bf56ec6041fe1 *tests/data/fate/matroska-dvbsub-remux.matroska
-39025 tests/data/fate/matroska-dvbsub-remux.matroska
+77d210dc36d7a01988d159b3c902524c *tests/data/fate/matroska-dvbsub-remux.matroska
+39010 tests/data/fate/matroska-dvbsub-remux.matroska
 #extradata 0:        5, 0x00bb0064
 #extradata 1:        5, 0x00bb0064
 #tb 0: 1/1000
diff --git a/tests/ref/fate/matroska-flac-extradata-update b/tests/ref/fate/matroska-flac-extradata-update
index b0276f734d..e8812f51b5 100644
--- a/tests/ref/fate/matroska-flac-extradata-update
+++ b/tests/ref/fate/matroska-flac-extradata-update
@@ -1,5 +1,5 @@
-56ff5763fd81ad3bc02c22402cd685e2 *tests/data/fate/matroska-flac-extradata-update.matroska
-2008 tests/data/fate/matroska-flac-extradata-update.matroska
+732446e97bae29037ff0cd9963d4ac08 *tests/data/fate/matroska-flac-extradata-update.matroska
+1987 tests/data/fate/matroska-flac-extradata-update.matroska
 #extradata 0:       34, 0x7acb09e7
 #extradata 1:       34, 0x7acb09e7
 #extradata 2:       34, 0x443402dd
diff --git a/tests/ref/fate/matroska-h264-remux b/tests/ref/fate/matroska-h264-remux
index 4004afef9a..6edd88fba8 100644
--- a/tests/ref/fate/matroska-h264-remux
+++ b/tests/ref/fate/matroska-h264-remux
@@ -1,5 +1,5 @@
-e4b0303e7bfbc8394bf47e11ab991d48 *tests/data/fate/matroska-h264-remux.matroska
-2036061 tests/data/fate/matroska-h264-remux.matroska
+3c00191234d5c4d77151d38a86403101 *tests/data/fate/matroska-h264-remux.matroska
+2036033 tests/data/fate/matroska-h264-remux.matroska
 #tb 0: 1/25
 #media_type 0: video
 #codec_id 0: rawvideo
diff --git a/tests/ref/fate/matroska-mastering-display-metadata b/tests/ref/fate/matroska-mastering-display-metadata
index b5d8812ee4..5b23e9506c 100644
--- a/tests/ref/fate/matroska-mastering-display-metadata
+++ b/tests/ref/fate/matroska-mastering-display-metadata
@@ -1,5 +1,5 @@
-62866a79d93bbe699d6abb6592ceb50e *tests/data/fate/matroska-mastering-display-metadata.matroska
-1669585 tests/data/fate/matroska-mastering-display-metadata.matroska
+69a904789151abaee46033391a4fce46 *tests/data/fate/matroska-mastering-display-metadata.matroska
+1669555 tests/data/fate/matroska-mastering-display-metadata.matroska
 #extradata 0:        4, 0x040901a3
 #extradata 3:      200, 0x506463a8
 #tb 0: 1/1000
diff --git a/tests/ref/fate/matroska-move-cues-to-front b/tests/ref/fate/matroska-move-cues-to-front
index 4f627bfdfb..78697b2eae 100644
--- a/tests/ref/fate/matroska-move-cues-to-front
+++ b/tests/ref/fate/matroska-move-cues-to-front
@@ -1,5 +1,5 @@
-62064edeb4a621fd0097f04c410c165c *tests/data/fate/matroska-move-cues-to-front.matroska
-23210303 tests/data/fate/matroska-move-cues-to-front.matroska
+8ebfcf15768bbe66611e349383fbf26a *tests/data/fate/matroska-move-cues-to-front.matroska
+23210287 tests/data/fate/matroska-move-cues-to-front.matroska
 #tb 0: 1/1000
 #media_type 0: audio
 #codec_id 0: pcm_s24be
diff --git a/tests/ref/fate/matroska-mpegts-remux b/tests/ref/fate/matroska-mpegts-remux
index 148bc0ffbc..2faab0892f 100644
--- a/tests/ref/fate/matroska-mpegts-remux
+++ b/tests/ref/fate/matroska-mpegts-remux
@@ -1,5 +1,5 @@
-4e6253c1f5f96ff64ae855dea426547d *tests/data/fate/matroska-mpegts-remux.matroska
-6509 tests/data/fate/matroska-mpegts-remux.matroska
+acaf3ebe07afe9815e0a984921d3ab87 *tests/data/fate/matroska-mpegts-remux.matroska
+6494 tests/data/fate/matroska-mpegts-remux.matroska
 #tb 0: 1/1000
 #media_type 0: audio
 #codec_id 0: ac3
diff --git a/tests/ref/fate/matroska-ms-mode b/tests/ref/fate/matroska-ms-mode
index f911d744d1..f90a7e431f 100644
--- a/tests/ref/fate/matroska-ms-mode
+++ b/tests/ref/fate/matroska-ms-mode
@@ -1,5 +1,5 @@
-20e86febdfa8a2d5aefd83f89d5d99a7 *tests/data/fate/matroska-ms-mode.matroska
-413101 tests/data/fate/matroska-ms-mode.matroska
+afb4fc9b2ca6cafc03d8029fdf4da876 *tests/data/fate/matroska-ms-mode.matroska
+413086 tests/data/fate/matroska-ms-mode.matroska
 #extradata 0:       40, 0x54290c93
 #extradata 1:      114, 0xb6c80771
 #tb 0: 1/1000
diff --git a/tests/ref/fate/matroska-pgs-remux b/tests/ref/fate/matroska-pgs-remux
index 4fab0ffdd8..ed5beb7463 100644
--- a/tests/ref/fate/matroska-pgs-remux
+++ b/tests/ref/fate/matroska-pgs-remux
@@ -1,5 +1,5 @@
-9aa538611b5f3bd0455b2afd3dafe08d *tests/data/fate/matroska-pgs-remux.matroska
-49751 tests/data/fate/matroska-pgs-remux.matroska
+6703d4e9a905bc5a1fc529776e8ffb51 *tests/data/fate/matroska-pgs-remux.matroska
+49744 tests/data/fate/matroska-pgs-remux.matroska
 #tb 0: 1/1000
 #media_type 0: subtitle
 #codec_id 0: hdmv_pgs_subtitle
diff --git a/tests/ref/fate/matroska-pgs-remux-durations b/tests/ref/fate/matroska-pgs-remux-durations
index ba649d0ddf..a255640fa6 100644
--- a/tests/ref/fate/matroska-pgs-remux-durations
+++ b/tests/ref/fate/matroska-pgs-remux-durations
@@ -1,5 +1,5 @@
-20fa9d515b08718c42d3e3a8a4a8bf5d *tests/data/fate/matroska-pgs-remux-durations.matroska
-49763 tests/data/fate/matroska-pgs-remux-durations.matroska
+a547f8b6463a60e5ef2e9a2b117c4dfa *tests/data/fate/matroska-pgs-remux-durations.matroska
+49756 tests/data/fate/matroska-pgs-remux-durations.matroska
 #tb 0: 1/1000
 #media_type 0: subtitle
 #codec_id 0: hdmv_pgs_subtitle
diff --git a/tests/ref/fate/matroska-qt-mode b/tests/ref/fate/matroska-qt-mode
index f16382b9b3..17a8e6619e 100644
--- a/tests/ref/fate/matroska-qt-mode
+++ b/tests/ref/fate/matroska-qt-mode
@@ -1,5 +1,5 @@
-7f3a5c46ccb2b95074bdabc034ee71d1 *tests/data/fate/matroska-qt-mode.matroska
-1884236 tests/data/fate/matroska-qt-mode.matroska
+39a3d6faff69892c8a20301560b80b14 *tests/data/fate/matroska-qt-mode.matroska
+1884224 tests/data/fate/matroska-qt-mode.matroska
 #extradata 0:       90, 0x817d0185
 #tb 0: 1/1000
 #media_type 0: video
diff --git a/tests/ref/fate/matroska-spherical-mono-remux b/tests/ref/fate/matroska-spherical-mono-remux
index 6b7d64f6d5..6b975c1586 100644
--- a/tests/ref/fate/matroska-spherical-mono-remux
+++ b/tests/ref/fate/matroska-spherical-mono-remux
@@ -1,5 +1,5 @@
-28d9277e1992fa362e7eac7a16261fde *tests/data/fate/matroska-spherical-mono-remux.matroska
-161569 tests/data/fate/matroska-spherical-mono-remux.matroska
+31cdace875cb696973d5a493ce776eea *tests/data/fate/matroska-spherical-mono-remux.matroska
+161554 tests/data/fate/matroska-spherical-mono-remux.matroska
 #extradata 0:       43, 0x2b0e0d7b
 #extradata 1:       43, 0x2b0e0d7b
 #tb 0: 1/1000
diff --git a/tests/ref/fate/matroska-vp8-alpha-remux b/tests/ref/fate/matroska-vp8-alpha-remux
index c17e8d0587..17c15ec9df 100644
--- a/tests/ref/fate/matroska-vp8-alpha-remux
+++ b/tests/ref/fate/matroska-vp8-alpha-remux
@@ -1,5 +1,5 @@
-58147987d42f32d105d96b24b0755257 *tests/data/fate/matroska-vp8-alpha-remux.matroska
-235018 tests/data/fate/matroska-vp8-alpha-remux.matroska
+fd4f24bf776a2f84e01b0aa7fdfece38 *tests/data/fate/matroska-vp8-alpha-remux.matroska
+235011 tests/data/fate/matroska-vp8-alpha-remux.matroska
 #tb 0: 1/1000
 #media_type 0: video
 #codec_id 0: vp8
diff --git a/tests/ref/fate/matroska-zero-length-block b/tests/ref/fate/matroska-zero-length-block
index 924cec1e3f..bef887d58b 100644
--- a/tests/ref/fate/matroska-zero-length-block
+++ b/tests/ref/fate/matroska-zero-length-block
@@ -1,5 +1,5 @@
-f37ba7e8a30eaa33c1fd0ef77447fb41 *tests/data/fate/matroska-zero-length-block.matroska
-636 tests/data/fate/matroska-zero-length-block.matroska
+d9c8efb9d64addce3cac97e6c417d985 *tests/data/fate/matroska-zero-length-block.matroska
+630 tests/data/fate/matroska-zero-length-block.matroska
 #tb 0: 1/1000
 #media_type 0: subtitle
 #codec_id 0: subrip
diff --git a/tests/ref/fate/rgb24-mkv b/tests/ref/fate/rgb24-mkv
index a9461dfc1b..f2cff5ff96 100644
--- a/tests/ref/fate/rgb24-mkv
+++ b/tests/ref/fate/rgb24-mkv
@@ -1,5 +1,5 @@
-afc7b59819a8d69773b04757278fccef *tests/data/fate/rgb24-mkv.matroska
-58217 tests/data/fate/rgb24-mkv.matroska
+a46cb669137f18ac0a42012485e5e863 *tests/data/fate/rgb24-mkv.matroska
+58211 tests/data/fate/rgb24-mkv.matroska
 #tb 0: 1/10
 #media_type 0: video
 #codec_id 0: rawvideo
diff --git a/tests/ref/fate/webm-dash-chapters b/tests/ref/fate/webm-dash-chapters
index 840fc2d4a4..9444824c4c 100644
--- a/tests/ref/fate/webm-dash-chapters
+++ b/tests/ref/fate/webm-dash-chapters
@@ -1,5 +1,5 @@
-f97445ba73e182c888fa077348384083 *tests/data/fate/webm-dash-chapters.webm
-111156 tests/data/fate/webm-dash-chapters.webm
+aa3ca15fae0239d6bf67fa0658a8bc3b *tests/data/fate/webm-dash-chapters.webm
+111150 tests/data/fate/webm-dash-chapters.webm
 #extradata 0:     3469, 0xc6769ddc
 #tb 0: 1/1000
 #media_type 0: audio
diff --git a/tests/ref/fate/webm-webvtt-remux b/tests/ref/fate/webm-webvtt-remux
index d847bbee2b..88def03dbe 100644
--- a/tests/ref/fate/webm-webvtt-remux
+++ b/tests/ref/fate/webm-webvtt-remux
@@ -1,5 +1,5 @@
-8620a6614f149fc49ab7f4552373943e *tests/data/fate/webm-webvtt-remux.webm
-6556 tests/data/fate/webm-webvtt-remux.webm
+0b43695bf27bbe48ea44e969d8908e1f *tests/data/fate/webm-webvtt-remux.webm
+6528 tests/data/fate/webm-webvtt-remux.webm
 #tb 0: 1/1000
 #media_type 0: subtitle
 #codec_id 0: webvtt