extended option for h263+ patch by (fixounet at free dot fr) with some minor modifications

Originally committed as revision 1622 to svn://svn.ffmpeg.org/ffmpeg/trunk

ffmpeg.c

@@ -123,6 +123,11 @@ static int same_quality = 0;
 static int b_frames = 0;
 static int use_hq = 0;
 static int use_4mv = 0;
+/* Fx */
+static int use_aic = 0;
+static int use_umv = 0;
+/* /Fx */
+static int use_h263p_extra = 0;
 static int do_deinterlace = 0;
 static int workaround_bugs = FF_BUG_AUTODETECT;
 static int error_resilience = 2;
@@ -2230,7 +2235,14 @@ static void opt_output_file(const char *filename)
                 if (use_hq) {
                     video_enc->flags |= CODEC_FLAG_HQ;
                 }
-            
+           	/* Fx */ 
+                if (use_umv) {
+                    video_enc->flags |= CODEC_FLAG_H263P_UMV;
+                }
+           	if (use_aic) {
+                    video_enc->flags |= CODEC_FLAG_H263P_AIC;
+                }
+           	/* /Fx */ 
                 if (use_4mv) {
                     video_enc->flags |= CODEC_FLAG_HQ;
                     video_enc->flags |= CODEC_FLAG_4MV;
@@ -2769,6 +2781,10 @@ const OptionDef options[] = {
     { "vstats", OPT_BOOL | OPT_EXPERT, {(void*)&do_vstats}, "dump video coding statistics to file" }, 
     { "bitexact", OPT_EXPERT, {(void*)opt_bitexact}, "only use bit exact algorithms (for codec testing)" }, 
     { "vhook", HAS_ARG | OPT_EXPERT, {(void*)add_frame_hooker}, "insert video processing module", "module name and parameters" },
+    /* Fx */
+    { "aic", OPT_BOOL | OPT_EXPERT, {(void*)&use_aic}, "enable Advanced intra coding (h263+)" },
+    { "umv", OPT_BOOL | OPT_EXPERT, {(void*)&use_umv}, "enable Unlimited Motion Vector (h263+)" },
+    /* /Fx */
     { NULL, },
 };
 

libavcodec/avcodec.h

@@ -160,7 +160,19 @@ static const int Motion_Est_QTab[] = { ME_ZERO, ME_PHODS, ME_LOG,
 #define CODEC_FLAG_TRELLIS_QUANT  0x00200000 /* use trellis quantization */
 #define CODEC_FLAG_GLOBAL_HEADER  0x00400000 /* place global headers in extradata instead of every keyframe */
 #define CODEC_FLAG_BITEXACT       0x00800000 /* use only bitexact stuff (except (i)dct) */
-
+/* Fx : Flag for h263+ extra options */
+#define CODEC_FLAG_H263P_AIC      0x01000000 /* Advanced intra coding */
+#define CODEC_FLAG_H263P_UMV      0x02000000 /* Unlimited motion vector  */
+/* For advanced prediction mode, we reuse the 4MV flag */
+/* Unsupported options :
+ * 		Syntax Arithmetic coding (SAC)
+ * 		Deblocking filter internal loop
+ * 		Slice structured
+ * 		Reference Picture Selection
+ * 		Independant Segment Decoding
+ * 		Alternative Inter * 		VLC
+ * 		Modified Quantization */
+/* /Fx */
 /* codec capabilities */
 
 #define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 /* decoder can use draw_horiz_band callback */

libavcodec/mpegvideo.c

@@ -581,9 +581,10 @@ int MPV_encode_init(AVCodecContext *avctx)
     case CODEC_ID_H263P:
         s->out_format = FMT_H263;
         s->h263_plus = 1;
-        s->unrestricted_mv = 1;
-        s->h263_aic = 1;
-        
+	/* Fx */
+	s->unrestricted_mv=(avctx->flags & CODEC_FLAG_H263P_UMV) ? 1:0;
+	s->h263_aic= (avctx->flags & CODEC_FLAG_H263P_AIC) ? 1:0;
+	/* /Fx */
         /* These are just to be sure */
         s->umvplus = 1;
         avctx->delay=0;