[FFmpeg-cvslog] avcodec/mjpegenc: dont store DQT for LJPEG
Michael Niedermayer
git at videolan.org
Tue Sep 24 01:31:30 CEST 2013
ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Tue Sep 24 01:02:51 2013 +0200| [15d4965239a34756a6317c5c971df77a0c0053d0] | committer: Michael Niedermayer
avcodec/mjpegenc: dont store DQT for LJPEG
This may improve compatibility of lgpegs generated by libavcodec
also encoded ljpegs become slightly smaller
Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=15d4965239a34756a6317c5c971df77a0c0053d0
---
libavcodec/mjpegenc.c | 2 ++
tests/ref/seek/vsynth2-ljpeg | 40 ++++++++++++++++++++--------------------
tests/ref/vsynth/vsynth1-ljpeg | 4 ++--
tests/ref/vsynth/vsynth2-ljpeg | 4 ++--
4 files changed, 26 insertions(+), 24 deletions(-)
diff --git a/libavcodec/mjpegenc.c b/libavcodec/mjpegenc.c
index 80a4022..bdac260 100644
--- a/libavcodec/mjpegenc.c
+++ b/libavcodec/mjpegenc.c
@@ -111,6 +111,7 @@ static void jpeg_table_header(MpegEncContext *s)
int i, j, size;
uint8_t *ptr;
+ if (s->avctx->codec_id != AV_CODEC_ID_LJPEG) {
/* quant matrixes */
put_marker(p, DQT);
#ifdef TWOMATRIXES
@@ -132,6 +133,7 @@ static void jpeg_table_header(MpegEncContext *s)
put_bits(p, 8, s->chroma_intra_matrix[j]);
}
#endif
+ }
if(s->avctx->active_thread_type & FF_THREAD_SLICE){
put_marker(p, DRI);
diff --git a/tests/ref/seek/vsynth2-ljpeg b/tests/ref/seek/vsynth2-ljpeg
index 92264c9..1ca1441 100644
--- a/tests/ref/seek/vsynth2-ljpeg
+++ b/tests/ref/seek/vsynth2-ljpeg
@@ -1,46 +1,46 @@
-ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 5648 size: 96069
+ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 5648 size: 96000
ret: 0 st:-1 flags:0 ts:-1.000000
-ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 5648 size: 96069
+ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 5648 size: 96000
ret: 0 st:-1 flags:1 ts: 1.894167
-ret: 0 st: 0 flags:1 dts: 1.880000 pts: 1.880000 pos:4481864 size: 94870
+ret: 0 st: 0 flags:1 dts: 1.880000 pts: 1.880000 pos:4478624 size: 94801
ret: 0 st: 0 flags:0 ts: 0.800000
-ret: 0 st: 0 flags:1 dts: 0.800000 pts: 0.800000 pos:1902318 size: 95465
+ret: 0 st: 0 flags:1 dts: 0.800000 pts: 0.800000 pos:1900940 size: 95396
ret:-1 st: 0 flags:1 ts:-0.320000
ret:-1 st:-1 flags:0 ts: 2.576668
ret: 0 st:-1 flags:1 ts: 1.470835
-ret: 0 st: 0 flags:1 dts: 1.480000 pts: 1.480000 pos:3527724 size: 95724
+ret: 0 st: 0 flags:1 dts: 1.480000 pts: 1.480000 pos:3525172 size: 95655
ret: 0 st: 0 flags:0 ts: 0.360000
-ret: 0 st: 0 flags:1 dts: 0.360000 pts: 0.360000 pos: 854944 size: 94635
+ret: 0 st: 0 flags:1 dts: 0.360000 pts: 0.360000 pos: 854322 size: 94566
ret:-1 st: 0 flags:1 ts:-0.760000
ret:-1 st:-1 flags:0 ts: 2.153336
ret: 0 st:-1 flags:1 ts: 1.047503
-ret: 0 st: 0 flags:1 dts: 1.040000 pts: 1.040000 pos:2475566 size: 95649
+ret: 0 st: 0 flags:1 dts: 1.040000 pts: 1.040000 pos:2473776 size: 95580
ret: 0 st: 0 flags:0 ts:-0.040000
-ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 5648 size: 96069
+ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 5648 size: 96000
ret: 0 st: 0 flags:1 ts: 2.840000
-ret: 0 st: 0 flags:1 dts: 1.960000 pts: 1.960000 pos:4671498 size: 94595
+ret: 0 st: 0 flags:1 dts: 1.960000 pts: 1.960000 pos:4668120 size: 94526
ret: 0 st:-1 flags:0 ts: 1.730004
-ret: 0 st: 0 flags:1 dts: 1.720000 pts: 1.720000 pos:4101338 size: 95353
+ret: 0 st: 0 flags:1 dts: 1.720000 pts: 1.720000 pos:4098374 size: 95284
ret: 0 st:-1 flags:1 ts: 0.624171
-ret: 0 st: 0 flags:1 dts: 0.640000 pts: 0.640000 pos:1520284 size: 95410
+ret: 0 st: 0 flags:1 dts: 0.640000 pts: 0.640000 pos:1519182 size: 95341
ret: 0 st: 0 flags:0 ts:-0.480000
-ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 5648 size: 96069
+ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 5648 size: 96000
ret: 0 st: 0 flags:1 ts: 2.400000
-ret: 0 st: 0 flags:1 dts: 1.960000 pts: 1.960000 pos:4671498 size: 94595
+ret: 0 st: 0 flags:1 dts: 1.960000 pts: 1.960000 pos:4668120 size: 94526
ret: 0 st:-1 flags:0 ts: 1.306672
-ret: 0 st: 0 flags:1 dts: 1.320000 pts: 1.320000 pos:3145114 size: 95587
+ret: 0 st: 0 flags:1 dts: 1.320000 pts: 1.320000 pos:3142838 size: 95518
ret: 0 st:-1 flags:1 ts: 0.200839
-ret: 0 st: 0 flags:1 dts: 0.200000 pts: 0.200000 pos: 477226 size: 94261
+ret: 0 st: 0 flags:1 dts: 0.200000 pts: 0.200000 pos: 476880 size: 94192
ret: 0 st: 0 flags:0 ts:-0.920000
-ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 5648 size: 96069
+ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 5648 size: 96000
ret: 0 st: 0 flags:1 ts: 2.000000
-ret: 0 st: 0 flags:1 dts: 1.960000 pts: 1.960000 pos:4671498 size: 94595
+ret: 0 st: 0 flags:1 dts: 1.960000 pts: 1.960000 pos:4668120 size: 94526
ret: 0 st:-1 flags:0 ts: 0.883340
-ret: 0 st: 0 flags:1 dts: 0.880000 pts: 0.880000 pos:2093302 size: 95528
+ret: 0 st: 0 flags:1 dts: 0.880000 pts: 0.880000 pos:2091786 size: 95459
ret:-1 st:-1 flags:1 ts:-0.222493
ret:-1 st: 0 flags:0 ts: 2.680000
ret: 0 st: 0 flags:1 ts: 1.560000
-ret: 0 st: 0 flags:1 dts: 1.560000 pts: 1.560000 pos:3719126 size: 95615
+ret: 0 st: 0 flags:1 dts: 1.560000 pts: 1.560000 pos:3716438 size: 95546
ret: 0 st:-1 flags:0 ts: 0.460008
-ret: 0 st: 0 flags:1 dts: 0.480000 pts: 0.480000 pos:1139238 size: 95032
+ret: 0 st: 0 flags:1 dts: 0.480000 pts: 0.480000 pos:1138408 size: 94963
ret:-1 st:-1 flags:1 ts:-0.645825
diff --git a/tests/ref/vsynth/vsynth1-ljpeg b/tests/ref/vsynth/vsynth1-ljpeg
index e229db5..7464a38 100644
--- a/tests/ref/vsynth/vsynth1-ljpeg
+++ b/tests/ref/vsynth/vsynth1-ljpeg
@@ -1,4 +1,4 @@
-2b1a2d5ad7f357df955d8548320d13f7 *tests/data/fate/vsynth1-ljpeg.avi
-6312924 tests/data/fate/vsynth1-ljpeg.avi
+ef0a38e7c24a4d7367a461ad8acac2c1 *tests/data/fate/vsynth1-ljpeg.avi
+6309478 tests/data/fate/vsynth1-ljpeg.avi
c5ccac874dbf808e9088bc3107860042 *tests/data/fate/vsynth1-ljpeg.out.rawvideo
stddev: 0.00 PSNR:999.99 MAXDIFF: 0 bytes: 7603200/ 7603200
diff --git a/tests/ref/vsynth/vsynth2-ljpeg b/tests/ref/vsynth/vsynth2-ljpeg
index fa2f978..2136fe8 100644
--- a/tests/ref/vsynth/vsynth2-ljpeg
+++ b/tests/ref/vsynth/vsynth2-ljpeg
@@ -1,4 +1,4 @@
-db9fd56e154b1056c9443a82a96db6f5 *tests/data/fate/vsynth2-ljpeg.avi
-4766902 tests/data/fate/vsynth2-ljpeg.avi
+b691d815bb7e40ac4ff8c0e51d8c08ff *tests/data/fate/vsynth2-ljpeg.avi
+4763454 tests/data/fate/vsynth2-ljpeg.avi
dde5895817ad9d219f79a52d0bdfb001 *tests/data/fate/vsynth2-ljpeg.out.rawvideo
stddev: 0.00 PSNR:999.99 MAXDIFF: 0 bytes: 7603200/ 7603200
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