lavc: remove msmpeg4v1 encoder.

The encoder has never produced files that could be decoded
with any software and there should be no reason to create
such files anyway.

libavcodec/Makefile

@@ -262,8 +262,6 @@ OBJS-$(CONFIG_MPEG2VIDEO_ENCODER)      += mpeg12enc.o mpegvideo_enc.o \
                                           mpegvideo.o error_resilience.o
 OBJS-$(CONFIG_MPEG4_VAAPI_HWACCEL)     += vaapi_mpeg4.o
 OBJS-$(CONFIG_MSMPEG4V1_DECODER)       += msmpeg4.o msmpeg4data.o
-OBJS-$(CONFIG_MSMPEG4V1_ENCODER)       += msmpeg4.o msmpeg4data.o h263dec.o \
-                                          h263.o ituh263dec.o mpeg4videodec.o
 OBJS-$(CONFIG_MSMPEG4V2_DECODER)       += msmpeg4.o msmpeg4data.o h263dec.o \
                                           h263.o ituh263dec.o mpeg4videodec.o
 OBJS-$(CONFIG_MSMPEG4V2_ENCODER)       += msmpeg4.o msmpeg4data.o h263dec.o \

libavcodec/allcodecs.c

@@ -147,7 +147,7 @@ void avcodec_register_all(void)
     REGISTER_DECODER (MPEGVIDEO, mpegvideo);
     REGISTER_DECODER (MPEG_VDPAU, mpeg_vdpau);
     REGISTER_DECODER (MPEG1_VDPAU, mpeg1_vdpau);
-    REGISTER_ENCDEC  (MSMPEG4V1, msmpeg4v1);
+    REGISTER_DECODER (MSMPEG4V1, msmpeg4v1);
     REGISTER_ENCDEC  (MSMPEG4V2, msmpeg4v2);
     REGISTER_ENCDEC  (MSMPEG4V3, msmpeg4v3);
     REGISTER_DECODER (MSRLE, msrle);

libavcodec/mpegvideo_enc.c

@@ -637,15 +637,6 @@ av_cold int MPV_encode_init(AVCodecContext *avctx)
         s->low_delay= s->max_b_frames ? 0 : 1;
         avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
         break;
-    case CODEC_ID_MSMPEG4V1:
-        s->out_format = FMT_H263;
-        s->h263_msmpeg4 = 1;
-        s->h263_pred = 1;
-        s->unrestricted_mv = 1;
-        s->msmpeg4_version= 1;
-        avctx->delay=0;
-        s->low_delay=1;
-        break;
     case CODEC_ID_MSMPEG4V2:
         s->out_format = FMT_H263;
         s->h263_msmpeg4 = 1;
@@ -3805,18 +3796,6 @@ AVCodec ff_h263p_encoder = {
     .long_name= NULL_IF_CONFIG_SMALL("H.263+ / H.263-1998 / H.263 version 2"),
 };
 
-AVCodec ff_msmpeg4v1_encoder = {
-    "msmpeg4v1",
-    AVMEDIA_TYPE_VIDEO,
-    CODEC_ID_MSMPEG4V1,
-    sizeof(MpegEncContext),
-    MPV_encode_init,
-    MPV_encode_picture,
-    MPV_encode_end,
-    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
-    .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 1"),
-};
-
 AVCodec ff_msmpeg4v2_encoder = {
     "msmpeg4v2",
     AVMEDIA_TYPE_VIDEO,

libavcodec/msmpeg4.c

@@ -846,13 +846,6 @@ static void msmpeg4_encode_dc(MpegEncContext * s, int level, int n, int *dir_ptr
     int pred, extquant;
     int extrabits = 0;
 
-    if(s->msmpeg4_version==1){
-        int32_t *dc_val;
-        pred = msmpeg4v1_pred_dc(s, n, &dc_val);
-
-        /* update predictor */
-        *dc_val= level;
-    }else{
         int16_t *dc_val;
         pred = msmpeg4_pred_dc(s, n, &dc_val, dir_ptr);
 
@@ -862,7 +855,6 @@ static void msmpeg4_encode_dc(MpegEncContext * s, int level, int n, int *dir_ptr
         } else {
             *dc_val = level * s->c_dc_scale;
         }
-    }
 
     /* do the prediction */
     level -= pred;

libavcodec/msmpeg4.h

@@ -54,8 +54,7 @@ int ff_wmv2_decode_mb(MpegEncContext *s, DCTELEM block[6][64]);
                                 CONFIG_MSMPEG4V3_DECODER || \
                                 CONFIG_WMV2_DECODER      || \
                                 CONFIG_VC1_DECODER)
-#define CONFIG_MSMPEG4_ENCODER (CONFIG_MSMPEG4V1_ENCODER || \
-                                CONFIG_MSMPEG4V2_ENCODER || \
+#define CONFIG_MSMPEG4_ENCODER (CONFIG_MSMPEG4V2_ENCODER || \
                                 CONFIG_MSMPEG4V3_ENCODER || \
                                 CONFIG_WMV2_ENCODER)