[FFmpeg-cvslog] avcodec/jpegtables: Move ff_mjpeg_build_huffman_codes to mjpegenc_common

[Andreas Rheinhardt]

ffmpeg | branch: master | Andreas Rheinhardt <andreas.rheinhardt at gmail.com> | Wed Feb 10 00:31:46 2021 +0100| [6eae9c1d3946771c577faeda9e4394a26063dd22] | committer: Andreas Rheinhardt

avcodec/jpegtables: Move ff_mjpeg_build_huffman_codes to mjpegenc_common

Since g2meet.c doesn't use it any more, only encoders use it and
the place for their common code is mjpegenc_common.c.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=6eae9c1d3946771c577faeda9e4394a26063dd22
---

 libavcodec/jpegtables.c      | 21 ---------------------
 libavcodec/jpegtables.h      |  4 ----
 libavcodec/mjpegenc_common.c | 21 +++++++++++++++++++++
 libavcodec/mjpegenc_common.h |  3 +++
 4 files changed, 24 insertions(+), 25 deletions(-)

diff --git a/libavcodec/jpegtables.c b/libavcodec/jpegtables.c
index e44bc7a22a..ef3f8dee20 100644
--- a/libavcodec/jpegtables.c
+++ b/libavcodec/jpegtables.c
@@ -122,24 +122,3 @@ const uint8_t avpriv_mjpeg_val_ac_chrominance[] =
   0xea, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8,
   0xf9, 0xfa
 };
-
-/* isn't this function nicer than the one in the libjpeg ? */
-void ff_mjpeg_build_huffman_codes(uint8_t *huff_size, uint16_t *huff_code,
-                                  const uint8_t *bits_table,
-                                  const uint8_t *val_table)
-{
-    int i, j, k,nb, code, sym;
-
-    k = 0;
-    code = 0;
-    for(i=1;i<=16;i++) {
-        nb = bits_table[i];
-        for(j=0;j<nb;j++) {
-            sym = val_table[k++];
-            huff_size[sym] = i;
-            huff_code[sym] = code;
-            code++;
-        }
-        code <<= 1;
-    }
-}
diff --git a/libavcodec/jpegtables.h b/libavcodec/jpegtables.h
index aa38df4033..0907280445 100644
--- a/libavcodec/jpegtables.h
+++ b/libavcodec/jpegtables.h
@@ -36,8 +36,4 @@ extern av_export_avcodec const uint8_t avpriv_mjpeg_val_ac_luminance[];
 extern av_export_avcodec const uint8_t avpriv_mjpeg_bits_ac_chrominance[];
 extern av_export_avcodec const uint8_t avpriv_mjpeg_val_ac_chrominance[];
 
-void ff_mjpeg_build_huffman_codes(uint8_t *huff_size, uint16_t *huff_code,
-                                  const uint8_t *bits_table,
-                                  const uint8_t *val_table);
-
 #endif /* AVCODEC_JPEGTABLES_H */
diff --git a/libavcodec/mjpegenc_common.c b/libavcodec/mjpegenc_common.c
index 0b82777ec9..720b18d448 100644
--- a/libavcodec/mjpegenc_common.c
+++ b/libavcodec/mjpegenc_common.c
@@ -466,6 +466,27 @@ void ff_mjpeg_escape_FF(PutBitContext *pb, int start)
     }
 }
 
+/* isn't this function nicer than the one in the libjpeg ? */
+void ff_mjpeg_build_huffman_codes(uint8_t *huff_size, uint16_t *huff_code,
+                                  const uint8_t *bits_table,
+                                  const uint8_t *val_table)
+{
+    int k, code;
+
+    k = 0;
+    code = 0;
+    for (int i = 1; i <= 16; i++) {
+        int nb = bits_table[i];
+        for (int j = 0; j < nb; j++) {
+            int sym = val_table[k++];
+            huff_size[sym] = i;
+            huff_code[sym] = code;
+            code++;
+        }
+        code <<= 1;
+    }
+}
+
 /**
  * Builds all 4 optimal Huffman tables.
  *
diff --git a/libavcodec/mjpegenc_common.h b/libavcodec/mjpegenc_common.h
index e8698d18c6..b432baac3e 100644
--- a/libavcodec/mjpegenc_common.h
+++ b/libavcodec/mjpegenc_common.h
@@ -35,6 +35,9 @@ void ff_mjpeg_encode_picture_header(AVCodecContext *avctx, PutBitContext *pb,
 void ff_mjpeg_encode_picture_frame(MpegEncContext *s);
 void ff_mjpeg_encode_picture_trailer(PutBitContext *pb, int header_bits);
 void ff_mjpeg_escape_FF(PutBitContext *pb, int start);
+void ff_mjpeg_build_huffman_codes(uint8_t *huff_size, uint16_t *huff_code,
+                                  const uint8_t *bits_table,
+                                  const uint8_t *val_table);
 int ff_mjpeg_encode_stuffing(MpegEncContext *s);
 void ff_mjpeg_init_hvsample(AVCodecContext *avctx, int hsample[4], int vsample[4]);