Split out flv encoding.

Originally committed as revision 21050 to svn://svn.ffmpeg.org/ffmpeg/trunk

6 files changed, 116 insertions, 63 deletions

diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index 16502f1..117f5c1 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -128,7 +128,7 @@ OBJS-$(CONFIG_H263_DECODER)            += h263dec.o h263.o \
                                           mpegvideo.o error_resilience.o
 OBJS-$(CONFIG_H263_VAAPI_HWACCEL)      += vaapi_mpeg4.o
 OBJS-$(CONFIG_H263_ENCODER)            += mpegvideo_enc.o motion_est.o      \
-                                          ratecontrol.o h263.o mpeg12data.o \
+                                          ratecontrol.o h263.o flvenc.o mpeg12data.o \
                                           mpegvideo.o error_resilience.o
 OBJS-$(CONFIG_H264_DECODER)            += h264.o h264idct.o h264pred.o cabac.o \
                                           mpegvideo.o error_resilience.o
diff --git a/libavcodec/flv.h b/libavcodec/flv.h
new file mode 100644
index 0000000..848c92d
--- /dev/null
+++ b/libavcodec/flv.h
@@ -0,0 +1,27 @@
+/*
+ * FLV specific private header.
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_FLV_H
+#define AVCODEC_FLV_H
+
+void ff_flv_encode_picture_header(MpegEncContext * s, int picture_number);
+void ff_flv2_encode_ac_esc(PutBitContext *pb, int slevel, int level, int run, int last);
+
+#endif
+
diff --git a/libavcodec/flvenc.c b/libavcodec/flvenc.c
new file mode 100644
index 0000000..c8a630b
--- /dev/null
+++ b/libavcodec/flvenc.c
@@ -0,0 +1,84 @@
+/*
+ * FLV Encoding specific code.
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "mpegvideo.h"
+#include "flv.h"
+
+void ff_flv_encode_picture_header(MpegEncContext * s, int picture_number)
+{
+      int format;
+
+      align_put_bits(&s->pb);
+
+      put_bits(&s->pb, 17, 1);
+      put_bits(&s->pb, 5, (s->h263_flv-1)); /* 0: h263 escape codes 1: 11-bit escape codes */
+      put_bits(&s->pb, 8, (((int64_t)s->picture_number * 30 * s->avctx->time_base.num) / //FIXME use timestamp
+                           s->avctx->time_base.den) & 0xff); /* TemporalReference */
+      if (s->width == 352 && s->height == 288)
+        format = 2;
+      else if (s->width == 176 && s->height == 144)
+        format = 3;
+      else if (s->width == 128 && s->height == 96)
+        format = 4;
+      else if (s->width == 320 && s->height == 240)
+        format = 5;
+      else if (s->width == 160 && s->height == 120)
+        format = 6;
+      else if (s->width <= 255 && s->height <= 255)
+        format = 0; /* use 1 byte width & height */
+      else
+        format = 1; /* use 2 bytes width & height */
+      put_bits(&s->pb, 3, format); /* PictureSize */
+      if (format == 0) {
+        put_bits(&s->pb, 8, s->width);
+        put_bits(&s->pb, 8, s->height);
+      } else if (format == 1) {
+        put_bits(&s->pb, 16, s->width);
+        put_bits(&s->pb, 16, s->height);
+      }
+      put_bits(&s->pb, 2, s->pict_type == FF_P_TYPE); /* PictureType */
+      put_bits(&s->pb, 1, 1); /* DeblockingFlag: on */
+      put_bits(&s->pb, 5, s->qscale); /* Quantizer */
+      put_bits(&s->pb, 1, 0); /* ExtraInformation */
+
+      if(s->h263_aic){
+        s->y_dc_scale_table=
+          s->c_dc_scale_table= ff_aic_dc_scale_table;
+      }else{
+        s->y_dc_scale_table=
+          s->c_dc_scale_table= ff_mpeg1_dc_scale_table;
+      }
+}
+
+void ff_flv2_encode_ac_esc(PutBitContext *pb, int slevel, int level, int run, int last){
+    if(level < 64) { // 7-bit level
+        put_bits(pb, 1, 0);
+        put_bits(pb, 1, last);
+        put_bits(pb, 6, run);
+
+        put_sbits(pb, 7, slevel);
+    } else {
+        /* 11-bit level */
+        put_bits(pb, 1, 1);
+        put_bits(pb, 1, last);
+        put_bits(pb, 6, run);
+
+        put_sbits(pb, 11, slevel);
+    }
+}
diff --git a/libavcodec/h263.c b/libavcodec/h263.c
index 47e2897..67d01dc 100644
--- a/libavcodec/h263.c
+++ b/libavcodec/h263.c
@@ -41,6 +41,7 @@
 #include "mpeg4data.h"
 #include "mathops.h"
 #include "unary.h"
+#include "flv.h"
 
 //#undef NDEBUG
 //#include <assert.h>
@@ -170,52 +171,6 @@ static av_const int aspect_to_info(AVRational aspect){
     return FF_ASPECT_EXTENDED;
 }
 
-void ff_flv_encode_picture_header(MpegEncContext * s, int picture_number)
-{
-      int format;
-
-      align_put_bits(&s->pb);
-
-      put_bits(&s->pb, 17, 1);
-      put_bits(&s->pb, 5, (s->h263_flv-1)); /* 0: h263 escape codes 1: 11-bit escape codes */
-      put_bits(&s->pb, 8, (((int64_t)s->picture_number * 30 * s->avctx->time_base.num) / //FIXME use timestamp
-                           s->avctx->time_base.den) & 0xff); /* TemporalReference */
-      if (s->width == 352 && s->height == 288)
-        format = 2;
-      else if (s->width == 176 && s->height == 144)
-        format = 3;
-      else if (s->width == 128 && s->height == 96)
-        format = 4;
-      else if (s->width == 320 && s->height == 240)
-        format = 5;
-      else if (s->width == 160 && s->height == 120)
-        format = 6;
-      else if (s->width <= 255 && s->height <= 255)
-        format = 0; /* use 1 byte width & height */
-      else
-        format = 1; /* use 2 bytes width & height */
-      put_bits(&s->pb, 3, format); /* PictureSize */
-      if (format == 0) {
-        put_bits(&s->pb, 8, s->width);
-        put_bits(&s->pb, 8, s->height);
-      } else if (format == 1) {
-        put_bits(&s->pb, 16, s->width);
-        put_bits(&s->pb, 16, s->height);
-      }
-      put_bits(&s->pb, 2, s->pict_type == FF_P_TYPE); /* PictureType */
-      put_bits(&s->pb, 1, 1); /* DeblockingFlag: on */
-      put_bits(&s->pb, 5, s->qscale); /* Quantizer */
-      put_bits(&s->pb, 1, 0); /* ExtraInformation */
-
-      if(s->h263_aic){
-        s->y_dc_scale_table=
-          s->c_dc_scale_table= ff_aic_dc_scale_table;
-      }else{
-        s->y_dc_scale_table=
-          s->c_dc_scale_table= ff_mpeg1_dc_scale_table;
-      }
-}
-
 void h263_encode_picture_header(MpegEncContext * s, int picture_number)
 {
     int format, coded_frame_rate, coded_frame_rate_base, i, temp_ref;
@@ -1634,7 +1589,7 @@ static void h263_encode_block(MpegEncContext * s, DCTELEM * block, int n)
             code = get_rl_index(rl, last, run, level);
             put_bits(&s->pb, rl->table_vlc[code][1], rl->table_vlc[code][0]);
             if (code == rl->n) {
-              if(s->h263_flv <= 1){
+              if(!CONFIG_FLV_ENCODER || s->h263_flv <= 1){
                 put_bits(&s->pb, 1, last);
                 put_bits(&s->pb, 6, run);
 
@@ -1648,20 +1603,7 @@ static void h263_encode_block(MpegEncContext * s, DCTELEM * block, int n)
                     put_sbits(&s->pb, 6, slevel>>5);
                 }
               }else{
-                if(level < 64) { // 7-bit level
-                        put_bits(&s->pb, 1, 0);
-                        put_bits(&s->pb, 1, last);
-                        put_bits(&s->pb, 6, run);
-
-                        put_sbits(&s->pb, 7, slevel);
-                    } else {
-                        /* 11-bit level */
-                        put_bits(&s->pb, 1, 1);
-                        put_bits(&s->pb, 1, last);
-                        put_bits(&s->pb, 6, run);
-
-                        put_sbits(&s->pb, 11, slevel);
-                    }
+                    ff_flv2_encode_ac_esc(&s->pb, slevel, level, run, last);
               }
             } else {
                 put_bits(&s->pb, 1, sign);
diff --git a/libavcodec/mpegvideo.h b/libavcodec/mpegvideo.h
index cbc1b27..77e29b3 100644
--- a/libavcodec/mpegvideo.h
+++ b/libavcodec/mpegvideo.h
@@ -814,7 +814,6 @@ void mpeg4_encode_mb(MpegEncContext *s,
                     DCTELEM block[6][64],
                     int motion_x, int motion_y);
 void h263_encode_picture_header(MpegEncContext *s, int picture_number);
-void ff_flv_encode_picture_header(MpegEncContext *s, int picture_number);
 void h263_encode_gob_header(MpegEncContext * s, int mb_line);
 int16_t *h263_pred_motion(MpegEncContext * s, int block, int dir,
                         int *px, int *py);
diff --git a/libavcodec/mpegvideo_enc.c b/libavcodec/mpegvideo_enc.c
index 4b1dc12..73b27c9 100644
--- a/libavcodec/mpegvideo_enc.c
+++ b/libavcodec/mpegvideo_enc.c
@@ -35,6 +35,7 @@
 #include "msmpeg4.h"
 #include "faandct.h"
 #include "aandcttab.h"
+#include "flv.h"
 #include <limits.h>
 
 //#undef NDEBUG