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avcodec/pngenc: set default prediction method to PAETH

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this is a good compromise between speed and compression

-rw-r----- 1 michael michael 180987 Feb  6 14:29 lena-def.png
-rw-r----- 1 michael michael 128430 Feb  6 14:36 lena-pavg.png
-rw-r----- 1 michael michael 126269 Feb  6 14:36 lena-pmixed.png
-rw-r----- 1 michael michael 180987 Feb  6 14:35 lena-pnone.png
-rw-r----- 1 michael michael 127758 Feb  6 14:35 lena-ppaeth.png

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer
2025-02-06 14:47:42 +01:00
parent e47a3c7d62
commit fbf002dbd2
17 changed files with 38 additions and 38 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
libavcodec/pngenc.c
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@ -1205,7 +1205,7 @@ static av_cold int png_enc_close(AVCodecContext *avctx)
static const AVOption options[] = {
{"dpi", "Set image resolution (in dots per inch)", OFFSET(dpi), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 0x10000, VE},
{"dpm", "Set image resolution (in dots per meter)", OFFSET(dpm), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 0x10000, VE},
{ "pred", "Prediction method", OFFSET(filter_type), AV_OPT_TYPE_INT, { .i64 = PNG_FILTER_VALUE_NONE }, PNG_FILTER_VALUE_NONE, PNG_FILTER_VALUE_MIXED, VE, .unit = "pred" },
{ "pred", "Prediction method", OFFSET(filter_type), AV_OPT_TYPE_INT, { .i64 = PNG_FILTER_VALUE_PAETH }, PNG_FILTER_VALUE_NONE, PNG_FILTER_VALUE_MIXED, VE, .unit = "pred" },
{ "none", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PNG_FILTER_VALUE_NONE }, INT_MIN, INT_MAX, VE, .unit = "pred" },
{ "sub", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PNG_FILTER_VALUE_SUB }, INT_MIN, INT_MAX, VE, .unit = "pred" },
{ "up", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PNG_FILTER_VALUE_UP }, INT_MIN, INT_MAX, VE, .unit = "pred" },

4
tests/ref/fate/copy-apng
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@ -1,5 +1,5 @@
a4c46fad7716ad094eb3c78b74ca0244 *tests/data/fate/copy-apng.apng
6209864 tests/data/fate/copy-apng.apng
963d078c8702a77b362c5b7c508fa447 *tests/data/fate/copy-apng.apng
3911913 tests/data/fate/copy-apng.apng
#tb 0: 1/25
#media_type 0: video
#codec_id 0: rawvideo

6
tests/ref/fate/cover-art-aiff-id3v2-remux
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@ -1,5 +1,5 @@
330ad2bf538e91a31752b38024461df1 *tests/data/fate/cover-art-aiff-id3v2-remux.aiff
608914 tests/data/fate/cover-art-aiff-id3v2-remux.aiff
85e67f867e9f3123dacb26535dfdc89e *tests/data/fate/cover-art-aiff-id3v2-remux.aiff
558518 tests/data/fate/cover-art-aiff-id3v2-remux.aiff
#tb 0: 1/44100
#media_type 0: audio
#codec_id 0: pcm_s16be
@ -27,7 +27,7 @@
#sar 4: 1/1
0, 0, 0, 1024, 4096, 0xdac4695d
1, 0, 0, 0, 19650, 0xd5662610
2, 0, 0, 0, 184497, 0xc33f8d44
2, 0, 0, 0, 134100, 0x804dcb53
3, 0, 0, 0, 368254, 0xfa7f4bd8
4, 0, 0, 0, 19650, 0xd5662610
0, 1024, 1024, 1024, 4096, 0xad05c909

6
tests/ref/fate/cover-art-flac-remux
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@ -1,5 +1,5 @@
6defc5081a59ab12c8a5f9e263b25068 *tests/data/fate/cover-art-flac-remux.flac
1098537 tests/data/fate/cover-art-flac-remux.flac
2535b1a3c759250e7f470ece217971a4 *tests/data/fate/cover-art-flac-remux.flac
964234 tests/data/fate/cover-art-flac-remux.flac
#extradata 0: 34, 0x8d830abd
#tb 0: 1/44100
#media_type 0: audio
@ -38,7 +38,7 @@
#channel_layout_name 6: 2 channels (FL+FC)
0, 0, 0, 4608, 14, 0x242b036d
1, 0, 0, 0, 66888, 0x1fd72743
2, 0, 0, 0, 438706, 0x8bcb753b
2, 0, 0, 0, 304403, 0xaf7c7667
3, 0, 0, 0, 21671, 0x7d1c6030
4, 0, 0, 0, 522758, 0x7a63572f
5, 0, 0, 0, 21671, 0x7d1c6030

6
tests/ref/fate/cover-art-mp3-id3v2-remux
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@ -1,5 +1,5 @@
94946f0efd5f9bb0061ac1fbff7d731f *tests/data/fate/cover-art-mp3-id3v2-remux.mp3
399346 tests/data/fate/cover-art-mp3-id3v2-remux.mp3
a8dc078d174d5c4ae9769090b8404bae *tests/data/fate/cover-art-mp3-id3v2-remux.mp3
346394 tests/data/fate/cover-art-mp3-id3v2-remux.mp3
#tb 0: 1/14112000
#media_type 0: audio
#codec_id 0: mp3
@ -23,7 +23,7 @@
0, -353590, -353590, 368640, 417, 0x15848290, S=1, 10
1, 0, 0, 0, 208350, 0x291b44d1
2, 0, 0, 0, 15760, 0x71d5c418
3, 0, 0, 0, 165671, 0x7c1c8070
3, 0, 0, 0, 112719, 0x117b6853
0, 15050, 15050, 368640, 418, 0x46f684a4
0, 383690, 383690, 368640, 418, 0x46f684a4
0, 752330, 752330, 368640, 418, 0x46f684a4

6
tests/ref/fate/mov-cover-image
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@ -1,5 +1,5 @@
54a8870d5d1e6cc4da28ae422aa70898 *tests/data/fate/mov-cover-image.mp4
1011919 tests/data/fate/mov-cover-image.mp4
9a5143f063aedb39fb1f080444cc19a0 *tests/data/fate/mov-cover-image.mp4
1023905 tests/data/fate/mov-cover-image.mp4
#extradata 0: 2, 0x00340022
#tb 0: 1/44100
#media_type 0: audio
@ -20,7 +20,7 @@
0, -1088, -1088, 1024, 6, 0x027e00e8, F=0x5
0, -64, -64, 1024, 6, 0x027e00e8
1, 0, 0, 0, 25441, 0xe82503b0
2, 0, 0, 0, 32657, 0x080255d2
2, 0, 0, 0, 44643, 0xdb75ffb5
0, 960, 960, 1024, 6, 0x027e00e8
0, 1984, 1984, 1024, 6, 0x027e00e8
0, 3008, 3008, 1024, 6, 0x027e00e8

6
tests/ref/fate/png-icc
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@ -1,5 +1,5 @@
c460cd06a88ace94d7c76a6309aa8fb8 *tests/data/fate/png-icc.image2
49441 tests/data/fate/png-icc.image2
f440d78534808744d4ce727cda3d3309 *tests/data/fate/png-icc.image2
38328 tests/data/fate/png-icc.image2
#tb 0: 1/25
#media_type 0: video
#codec_id 0: rawvideo
@ -19,7 +19,7 @@ best_effort_timestamp_time=0.000000
duration=1
duration_time=0.040000
pkt_pos=0
pkt_size=49441
pkt_size=38328
width=128
height=128
crop_top=0

4
tests/ref/fate/png-mdcv
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@ -1,5 +1,5 @@
b1837f5557ad969a3f9763840480d5c0 *tests/data/fate/png-mdcv.image2pipe
439248 tests/data/fate/png-mdcv.image2pipe
e486b461b9c408e616873db8ad93b450 *tests/data/fate/png-mdcv.image2pipe
493893 tests/data/fate/png-mdcv.image2pipe
#tb 0: 1/25
#media_type 0: video
#codec_id 0: rawvideo

4
tests/ref/lavf/apng
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@ -1,3 +1,3 @@
a4c46fad7716ad094eb3c78b74ca0244 *tests/data/lavf/lavf.apng
6209864 tests/data/lavf/lavf.apng
963d078c8702a77b362c5b7c508fa447 *tests/data/lavf/lavf.apng
3911913 tests/data/lavf/lavf.apng
tests/data/lavf/lavf.apng CRC=0x87b3c15f

4
tests/ref/lavf/apng.png
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@ -1,3 +1,3 @@
c5900fdd1b2fc30b985793f5226fd0c4 *tests/data/lavf/lavf.apng.png
248854 tests/data/lavf/lavf.apng.png
7dc975747cdcfc3d6a2586a6229767f4 *tests/data/lavf/lavf.apng.png
156647 tests/data/lavf/lavf.apng.png
tests/data/lavf/lavf.apng.png CRC=0xd8c7b7a1

4
tests/ref/lavf/gray16be.png
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@ -1,3 +1,3 @@
0e388f5a62d49c0197030c6d87026bca *tests/data/images/gray16be.png/02.gray16be.png
47171 tests/data/images/gray16be.png/02.gray16be.png
7b0b465ffc39b178a16a9d5d6a83fd13 *tests/data/images/gray16be.png/02.gray16be.png
66434 tests/data/images/gray16be.png/02.gray16be.png
tests/data/images/gray16be.png/%02d.gray16be.png CRC=0xd679c0f0

4
tests/ref/lavf/png
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@ -1,3 +1,3 @@
2af72da4468e61a37c220b25cb28618a *tests/data/images/png/02.png
248633 tests/data/images/png/02.png
a59706d17b3c6096bfb9c1963b9978db *tests/data/images/png/02.png
157081 tests/data/images/png/02.png
tests/data/images/png/%02d.png CRC=0x6da01946

4
tests/ref/lavf/rgb48be.png
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@ -1,3 +1,3 @@
b4e38244c97debe3f528e7d1adb283ef *tests/data/images/rgb48be.png/02.rgb48be.png
511900 tests/data/images/rgb48be.png/02.rgb48be.png
82b60351aa1409f4cac200955b16fe71 *tests/data/images/rgb48be.png/02.rgb48be.png
370698 tests/data/images/rgb48be.png/02.rgb48be.png
tests/data/images/rgb48be.png/%02d.rgb48be.png CRC=0x5984c023

4
tests/ref/vsynth/vsynth1-mpng
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@ -1,4 +1,4 @@
6a27410a07ed1c5556e15b7a7c6a586d *tests/data/fate/vsynth1-mpng.avi
12158280 tests/data/fate/vsynth1-mpng.avi
40e37e28a693ada8605ea24dce8c2420 *tests/data/fate/vsynth1-mpng.avi
7658772 tests/data/fate/vsynth1-mpng.avi
93695a27c24a61105076ca7b1f010bbd *tests/data/fate/vsynth1-mpng.out.rawvideo
stddev: 3.42 PSNR: 37.44 MAXDIFF: 48 bytes: 7603200/ 7603200

4
tests/ref/vsynth/vsynth2-mpng
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@ -1,4 +1,4 @@
481e2d148f411bb61783aa688ec22943 *tests/data/fate/vsynth2-mpng.avi
11816978 tests/data/fate/vsynth2-mpng.avi
72b7353224c03854583d5809dfd56a77 *tests/data/fate/vsynth2-mpng.avi
9754234 tests/data/fate/vsynth2-mpng.avi
32fae3e665407bb4317b3f90fedb903c *tests/data/fate/vsynth2-mpng.out.rawvideo
stddev: 1.54 PSNR: 44.37 MAXDIFF: 17 bytes: 7603200/ 7603200

4
tests/ref/vsynth/vsynth3-mpng
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@ -1,4 +1,4 @@
3f64b66a1f46e31d45dd7f5514422ed0 *tests/data/fate/vsynth3-mpng.avi
179804 tests/data/fate/vsynth3-mpng.avi
28177b90f3b5a90043f11dc14b84f3f0 *tests/data/fate/vsynth3-mpng.avi
132202 tests/data/fate/vsynth3-mpng.avi
693aff10c094f8bd31693f74cf79d2b2 *tests/data/fate/vsynth3-mpng.out.rawvideo
stddev: 3.67 PSNR: 36.82 MAXDIFF: 43 bytes: 86700/ 86700

4
tests/ref/vsynth/vsynth_lena-mpng
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@ -1,4 +1,4 @@
319ca02f8465a9c53128442f4b0dd528 *tests/data/fate/vsynth_lena-mpng.avi
12558334 tests/data/fate/vsynth_lena-mpng.avi
0e83d89b738f387cc747a772d1c2a3c0 *tests/data/fate/vsynth_lena-mpng.avi
9433204 tests/data/fate/vsynth_lena-mpng.avi
98d0e2854731472c5bf13d8638502d0a *tests/data/fate/vsynth_lena-mpng.out.rawvideo
stddev: 1.26 PSNR: 46.10 MAXDIFF: 13 bytes: 7603200/ 7603200