mpegvideo: Add ff_ prefix to nonstatic functions

Signed-off-by: Martin Storsjö <martin@martin.st>

34 files changed, 180 insertions, 180 deletions

diff --git a/libavcodec/alpha/mpegvideo_alpha.c b/libavcodec/alpha/mpegvideo_alpha.c
index add57364a3..a1a8a27ac1 100644
--- a/libavcodec/alpha/mpegvideo_alpha.c
+++ b/libavcodec/alpha/mpegvideo_alpha.c
@@ -103,7 +103,7 @@ static void dct_unquantize_h263_inter_axp(MpegEncContext *s, DCTELEM *block,
     dct_unquantize_h263_axp(block, n_coeffs, qscale, (qscale - 1) | 1);
 }
 
-void MPV_common_init_axp(MpegEncContext *s)
+void ff_MPV_common_init_axp(MpegEncContext *s)
 {
     s->dct_unquantize_h263_intra = dct_unquantize_h263_intra_axp;
     s->dct_unquantize_h263_inter = dct_unquantize_h263_inter_axp;
diff --git a/libavcodec/arm/mpegvideo_arm.c b/libavcodec/arm/mpegvideo_arm.c
index b1d1312943..0a66f2a981 100644
--- a/libavcodec/arm/mpegvideo_arm.c
+++ b/libavcodec/arm/mpegvideo_arm.c
@@ -38,17 +38,17 @@ void ff_dct_unquantize_h263_inter_neon(MpegEncContext *s, DCTELEM *block,
 void ff_dct_unquantize_h263_intra_neon(MpegEncContext *s, DCTELEM *block,
                                        int n, int qscale);
 
-void MPV_common_init_arm(MpegEncContext *s)
+void ff_MPV_common_init_arm(MpegEncContext *s)
 {
     /* IWMMXT support is a superset of armv5te, so
      * allow optimized functions for armv5te unless
      * a better iwmmxt function exists
      */
 #if HAVE_ARMV5TE
-    MPV_common_init_armv5te(s);
+    ff_MPV_common_init_armv5te(s);
 #endif
 #if HAVE_IWMMXT
-    MPV_common_init_iwmmxt(s);
+    ff_MPV_common_init_iwmmxt(s);
 #endif
 
     if (HAVE_NEON) {
diff --git a/libavcodec/arm/mpegvideo_arm.h b/libavcodec/arm/mpegvideo_arm.h
index a36da6112b..57a228881c 100644
--- a/libavcodec/arm/mpegvideo_arm.h
+++ b/libavcodec/arm/mpegvideo_arm.h
@@ -21,7 +21,7 @@
 
 #include "libavcodec/mpegvideo.h"
 
-void MPV_common_init_iwmmxt(MpegEncContext *s);
-void MPV_common_init_armv5te(MpegEncContext *s);
+void ff_MPV_common_init_iwmmxt(MpegEncContext *s);
+void ff_MPV_common_init_armv5te(MpegEncContext *s);
 
 #endif /* AVCODEC_ARM_MPEGVIDEO_H */
diff --git a/libavcodec/arm/mpegvideo_armv5te.c b/libavcodec/arm/mpegvideo_armv5te.c
index 30197d8bc1..f6839dda0e 100644
--- a/libavcodec/arm/mpegvideo_armv5te.c
+++ b/libavcodec/arm/mpegvideo_armv5te.c
@@ -94,7 +94,7 @@ static void dct_unquantize_h263_inter_armv5te(MpegEncContext *s,
     ff_dct_unquantize_h263_armv5te(block, qmul, qadd, nCoeffs + 1);
 }
 
-void MPV_common_init_armv5te(MpegEncContext *s)
+void ff_MPV_common_init_armv5te(MpegEncContext *s)
 {
     s->dct_unquantize_h263_intra = dct_unquantize_h263_intra_armv5te;
     s->dct_unquantize_h263_inter = dct_unquantize_h263_inter_armv5te;
diff --git a/libavcodec/arm/mpegvideo_iwmmxt.c b/libavcodec/arm/mpegvideo_iwmmxt.c
index 6edc4c2ea6..a10ca17114 100644
--- a/libavcodec/arm/mpegvideo_iwmmxt.c
+++ b/libavcodec/arm/mpegvideo_iwmmxt.c
@@ -93,7 +93,7 @@ static void dct_unquantize_h263_intra_iwmmxt(MpegEncContext *s,
     block_orig[0] = level;
 }
 
-void MPV_common_init_iwmmxt(MpegEncContext *s)
+void ff_MPV_common_init_iwmmxt(MpegEncContext *s)
 {
     if (!(mm_flags & AV_CPU_FLAG_IWMMXT)) return;
 
diff --git a/libavcodec/bfin/mpegvideo_bfin.c b/libavcodec/bfin/mpegvideo_bfin.c
index 4697a5d893..8e88d88c5d 100644
--- a/libavcodec/bfin/mpegvideo_bfin.c
+++ b/libavcodec/bfin/mpegvideo_bfin.c
@@ -141,7 +141,7 @@ static int dct_quantize_bfin (MpegEncContext *s,
     return last_non_zero;
 }
 
-void MPV_common_init_bfin (MpegEncContext *s)
+void ff_MPV_common_init_bfin (MpegEncContext *s)
 {
 /*     s->dct_quantize= dct_quantize_bfin; */
 }
diff --git a/libavcodec/cavs.c b/libavcodec/cavs.c
index 9ff0e5165b..96ff2e87a8 100644
--- a/libavcodec/cavs.c
+++ b/libavcodec/cavs.c
@@ -671,7 +671,7 @@ av_cold int ff_cavs_init(AVCodecContext *avctx) {
     AVSContext *h = avctx->priv_data;
     MpegEncContext * const s = &h->s;
 
-    MPV_decode_defaults(s);
+    ff_MPV_decode_defaults(s);
     ff_cavsdsp_init(&h->cdsp, avctx);
     s->avctx = avctx;
 
diff --git a/libavcodec/cavsdec.c b/libavcodec/cavsdec.c
index 2f4b6e3b14..12564e8eac 100644
--- a/libavcodec/cavsdec.c
+++ b/libavcodec/cavsdec.c
@@ -469,7 +469,7 @@ static int decode_pic(AVSContext *h) {
 
     if (!s->context_initialized) {
         s->avctx->idct_algo = FF_IDCT_CAVS;
-        if (MPV_common_init(s) < 0)
+        if (ff_MPV_common_init(s) < 0)
             return -1;
         ff_init_scantable(s->dsp.idct_permutation,&h->scantable,ff_zigzag_direct);
     }
diff --git a/libavcodec/error_resilience.c b/libavcodec/error_resilience.c
index bf59efad1a..e28cc35928 100644
--- a/libavcodec/error_resilience.c
+++ b/libavcodec/error_resilience.c
@@ -66,7 +66,7 @@ static void decode_mb(MpegEncContext *s, int ref)
         ff_h264_hl_decode_mb(h);
     } else {
         assert(ref == 0);
-        MPV_decode_mb(s, s->block);
+        ff_MPV_decode_mb(s, s->block);
     }
 }
 
diff --git a/libavcodec/flvenc.c b/libavcodec/flvenc.c
index c0d9a04f62..822dba9082 100644
--- a/libavcodec/flvenc.c
+++ b/libavcodec/flvenc.c
@@ -89,9 +89,9 @@ AVCodec ff_flv_encoder = {
     .type           = AVMEDIA_TYPE_VIDEO,
     .id             = CODEC_ID_FLV1,
     .priv_data_size = sizeof(MpegEncContext),
-    .init           = MPV_encode_init,
-    .encode         = MPV_encode_picture,
-    .close          = MPV_encode_end,
+    .init           = ff_MPV_encode_init,
+    .encode         = ff_MPV_encode_picture,
+    .close          = ff_MPV_encode_end,
     .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
     .long_name= NULL_IF_CONFIG_SMALL("Flash Video (FLV) / Sorenson Spark / Sorenson H.263"),
 };
diff --git a/libavcodec/h261dec.c b/libavcodec/h261dec.c
index a71a202258..38d5e2efc3 100644
--- a/libavcodec/h261dec.c
+++ b/libavcodec/h261dec.c
@@ -76,7 +76,7 @@ static av_cold int h261_decode_init(AVCodecContext *avctx){
     MpegEncContext * const s = &h->s;
 
     // set defaults
-    MPV_decode_defaults(s);
+    ff_MPV_decode_defaults(s);
     s->avctx = avctx;
 
     s->width  = s->avctx->coded_width;
@@ -221,7 +221,7 @@ static int h261_decode_mb_skipped(H261Context *h, int mba1, int mba2 )
         s->mb_skipped = 1;
         h->mtype &= ~MB_TYPE_H261_FIL;
 
-        MPV_decode_mb(s, s->block);
+        ff_MPV_decode_mb(s, s->block);
     }
 
     return 0;
@@ -349,7 +349,7 @@ intra:
             s->block_last_index[i]= -1;
     }
 
-    MPV_decode_mb(s, s->block);
+    ff_MPV_decode_mb(s, s->block);
 
     return SLICE_OK;
 }
@@ -565,7 +565,7 @@ retry:
     init_get_bits(&s->gb, buf, buf_size*8);
 
     if(!s->context_initialized){
-        if (MPV_common_init(s) < 0) //we need the idct permutaton for reading a custom matrix
+        if (ff_MPV_common_init(s) < 0) //we need the idct permutaton for reading a custom matrix
             return -1;
     }
 
@@ -588,7 +588,7 @@ retry:
     if (s->width != avctx->coded_width || s->height != avctx->coded_height){
         ParseContext pc= s->parse_context; //FIXME move this demuxing hack to libavformat
         s->parse_context.buffer=0;
-        MPV_common_end(s);
+        ff_MPV_common_end(s);
         s->parse_context= pc;
     }
     if (!s->context_initialized) {
@@ -606,7 +606,7 @@ retry:
        || avctx->skip_frame >= AVDISCARD_ALL)
         return get_consumed_bytes(s, buf_size);
 
-    if(MPV_frame_start(s, avctx) < 0)
+    if(ff_MPV_frame_start(s, avctx) < 0)
         return -1;
 
     ff_er_frame_start(s);
@@ -620,7 +620,7 @@ retry:
             break;
         h261_decode_gob(h);
     }
-    MPV_frame_end(s);
+    ff_MPV_frame_end(s);
 
 assert(s->current_picture.f.pict_type == s->current_picture_ptr->f.pict_type);
 assert(s->current_picture.f.pict_type == s->pict_type);
@@ -637,7 +637,7 @@ static av_cold int h261_decode_end(AVCodecContext *avctx)
     H261Context *h= avctx->priv_data;
     MpegEncContext *s = &h->s;
 
-    MPV_common_end(s);
+    ff_MPV_common_end(s);
     return 0;
 }
 
diff --git a/libavcodec/h261enc.c b/libavcodec/h261enc.c
index 43bc85cc59..d33c72423c 100644
--- a/libavcodec/h261enc.c
+++ b/libavcodec/h261enc.c
@@ -326,9 +326,9 @@ AVCodec ff_h261_encoder = {
     .type           = AVMEDIA_TYPE_VIDEO,
     .id             = CODEC_ID_H261,
     .priv_data_size = sizeof(H261Context),
-    .init           = MPV_encode_init,
-    .encode         = MPV_encode_picture,
-    .close          = MPV_encode_end,
+    .init           = ff_MPV_encode_init,
+    .encode         = ff_MPV_encode_picture,
+    .close          = ff_MPV_encode_end,
     .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
     .long_name= NULL_IF_CONFIG_SMALL("H.261"),
 };
diff --git a/libavcodec/h263dec.c b/libavcodec/h263dec.c
index a3d00bc142..4f0e4563da 100644
--- a/libavcodec/h263dec.c
+++ b/libavcodec/h263dec.c
@@ -54,7 +54,7 @@ av_cold int ff_h263_decode_init(AVCodecContext *avctx)
     s->workaround_bugs= avctx->workaround_bugs;
 
     // set defaults
-    MPV_decode_defaults(s);
+    ff_MPV_decode_defaults(s);
     s->quant_precision=5;
     s->decode_mb= ff_h263_decode_mb;
     s->low_delay= 1;
@@ -110,7 +110,7 @@ av_cold int ff_h263_decode_init(AVCodecContext *avctx)
 
     /* for h263, we allocate the images after having read the header */
     if (avctx->codec->id != CODEC_ID_H263 && avctx->codec->id != CODEC_ID_MPEG4)
-        if (MPV_common_init(s) < 0)
+        if (ff_MPV_common_init(s) < 0)
             return -1;
 
         ff_h263_decode_init_vlc(s);
@@ -122,7 +122,7 @@ av_cold int ff_h263_decode_end(AVCodecContext *avctx)
 {
     MpegEncContext *s = avctx->priv_data;
 
-    MPV_common_end(s);
+    ff_MPV_common_end(s);
     return 0;
 }
 
@@ -220,7 +220,7 @@ static int decode_slice(MpegEncContext *s){
             if(ret<0){
                 const int xy= s->mb_x + s->mb_y*s->mb_stride;
                 if(ret==SLICE_END){
-                    MPV_decode_mb(s, s->block);
+                    ff_MPV_decode_mb(s, s->block);
                     if(s->loop_filter)
                         ff_h263_loop_filter(s);
 
@@ -232,7 +232,7 @@ static int decode_slice(MpegEncContext *s){
                     if(++s->mb_x >= s->mb_width){
                         s->mb_x=0;
                         ff_draw_horiz_band(s, s->mb_y*mb_size, mb_size);
-                        MPV_report_decode_progress(s);
+                        ff_MPV_report_decode_progress(s);
                         s->mb_y++;
                     }
                     return 0;
@@ -247,13 +247,13 @@ static int decode_slice(MpegEncContext *s){
                 return -1;
             }
 
-            MPV_decode_mb(s, s->block);
+            ff_MPV_decode_mb(s, s->block);
             if(s->loop_filter)
                 ff_h263_loop_filter(s);
         }
 
         ff_draw_horiz_band(s, s->mb_y*mb_size, mb_size);
-        MPV_report_decode_progress(s);
+        ff_MPV_report_decode_progress(s);
 
         s->mb_x= 0;
     }
@@ -390,7 +390,7 @@ retry:
     s->bitstream_buffer_size=0;
 
     if (!s->context_initialized) {
-        if (MPV_common_init(s) < 0) //we need the idct permutaton for reading a custom matrix
+        if (ff_MPV_common_init(s) < 0) //we need the idct permutaton for reading a custom matrix
             return -1;
     }
 
@@ -572,7 +572,7 @@ retry:
         /* H.263 could change picture size any time */
         ParseContext pc= s->parse_context; //FIXME move these demuxng hack to avformat
         s->parse_context.buffer=0;
-        MPV_common_end(s);
+        ff_MPV_common_end(s);
         s->parse_context= pc;
     }
     if (!s->context_initialized) {
@@ -613,7 +613,7 @@ retry:
         s->me.qpel_avg= s->dsp.avg_qpel_pixels_tab;
     }
 
-    if(MPV_frame_start(s, avctx) < 0)
+    if(ff_MPV_frame_start(s, avctx) < 0)
         return -1;
 
     if (!s->divx_packed) ff_thread_finish_setup(avctx);
@@ -631,7 +631,7 @@ retry:
     ff_er_frame_start(s);
 
     //the second part of the wmv2 header contains the MB skip bits which are stored in current_picture->mb_type
-    //which is not available before MPV_frame_start()
+    //which is not available before ff_MPV_frame_start()
     if (CONFIG_WMV2_DECODER && s->msmpeg4_version==5){
         ret = ff_wmv2_decode_secondary_picture_header(s);
         if(ret<0) return ret;
@@ -707,7 +707,7 @@ intrax8_decoded:
             return -1;
     }
 
-    MPV_frame_end(s);
+    ff_MPV_frame_end(s);
 
     assert(s->current_picture.f.pict_type == s->current_picture_ptr->f.pict_type);
     assert(s->current_picture.f.pict_type == s->pict_type);
diff --git a/libavcodec/h264.c b/libavcodec/h264.c
index a22fd46188..6eb24560b8 100644
--- a/libavcodec/h264.c
+++ b/libavcodec/h264.c
@@ -1100,7 +1100,7 @@ av_cold int ff_h264_decode_init(AVCodecContext *avctx){
     MpegEncContext * const s = &h->s;
     int i;
 
-    MPV_decode_defaults(s);
+    ff_MPV_decode_defaults(s);
 
     s->avctx = avctx;
     common_init(h);
@@ -1281,11 +1281,11 @@ int ff_h264_frame_start(H264Context *h){
     int i;
     const int pixel_shift = h->pixel_shift;
 
-    if(MPV_frame_start(s, s->avctx) < 0)
+    if(ff_MPV_frame_start(s, s->avctx) < 0)
         return -1;
     ff_er_frame_start(s);
     /*
-     * MPV_frame_start uses pict_type to derive key_frame.
+     * ff_MPV_frame_start uses pict_type to derive key_frame.
      * This is incorrect for H.264; IDR markings must be used.
      * Zero here; IDR markings per slice in frame or fields are ORed in later.
      * See decode_nal_units().
@@ -1319,7 +1319,7 @@ int ff_h264_frame_start(H264Context *h){
 
     // We mark the current picture as non-reference after allocating it, so
     // that if we break out due to an error it can be released automatically
-    // in the next MPV_frame_start().
+    // in the next ff_MPV_frame_start().
     // SVQ3 as well as most other codecs have only last/next/current and thus
     // get released even with set reference, besides SVQ3 and others do not
     // mark frames as reference later "naturally".
@@ -2562,7 +2562,7 @@ static int field_end(H264Context *h, int in_setup){
     if (!FIELD_PICTURE)
         ff_er_frame_end(s);
 
-    MPV_frame_end(s);
+    ff_MPV_frame_end(s);
 
     h->current_slice=0;
 
@@ -2625,7 +2625,7 @@ int ff_h264_get_profile(SPS *sps)
 
 /**
  * Decode a slice header.
- * This will also call MPV_common_init() and frame_start() as needed.
+ * This will also call ff_MPV_common_init() and frame_start() as needed.
  *
  * @param h h264context
  * @param h0 h264 master context (differs from 'h' when doing sliced based parallel decoding)
@@ -2734,7 +2734,7 @@ static int decode_slice_header(H264Context *h, H264Context *h0){
         }
         free_tables(h, 0);
         flush_dpb(s->avctx);
-        MPV_common_end(s);
+        ff_MPV_common_end(s);
     }
     if (!s->context_initialized) {
         if (h != h0) {
@@ -2806,8 +2806,8 @@ static int decode_slice_header(H264Context *h, H264Context *h0){
 
         s->avctx->hwaccel = ff_find_hwaccel(s->avctx->codec->id, s->avctx->pix_fmt);
 
-        if (MPV_common_init(s) < 0) {
-            av_log(h->s.avctx, AV_LOG_ERROR, "MPV_common_init() failed.\n");
+        if (ff_MPV_common_init(s) < 0) {
+            av_log(h->s.avctx, AV_LOG_ERROR, "ff_MPV_common_init() failed.\n");
             return -1;
         }
         s->first_field = 0;
@@ -4119,7 +4119,7 @@ av_cold int ff_h264_decode_end(AVCodecContext *avctx)
 
     ff_h264_free_context(h);
 
-    MPV_common_end(s);
+    ff_MPV_common_end(s);
 
 //    memset(h, 0, sizeof(H264Context));
 
diff --git a/libavcodec/ljpegenc.c b/libavcodec/ljpegenc.c
index 6a90338eb9..ac5c716496 100644
--- a/libavcodec/ljpegenc.c
+++ b/libavcodec/ljpegenc.c
@@ -191,8 +191,8 @@ AVCodec ff_ljpeg_encoder = { //FIXME avoid MPV_* lossless JPEG should not need t
     .type           = AVMEDIA_TYPE_VIDEO,
     .id             = CODEC_ID_LJPEG,
     .priv_data_size = sizeof(MpegEncContext),
-    .init           = MPV_encode_init,
+    .init           = ff_MPV_encode_init,
     .encode         = encode_picture_lossless,
-    .close          = MPV_encode_end,
+    .close          = ff_MPV_encode_end,
     .long_name      = NULL_IF_CONFIG_SMALL("Lossless JPEG"),
 };
diff --git a/libavcodec/mips/mpegvideo_mmi.c b/libavcodec/mips/mpegvideo_mmi.c
index 623e35af33..46239f7ba5 100644
--- a/libavcodec/mips/mpegvideo_mmi.c
+++ b/libavcodec/mips/mpegvideo_mmi.c
@@ -80,7 +80,7 @@ static void dct_unquantize_h263_mmi(MpegEncContext *s,
 }
 
 
-void MPV_common_init_mmi(MpegEncContext *s)
+void ff_MPV_common_init_mmi(MpegEncContext *s)
 {
     s->dct_unquantize_h263_intra =
     s->dct_unquantize_h263_inter = dct_unquantize_h263_mmi;
diff --git a/libavcodec/mjpegenc.c b/libavcodec/mjpegenc.c
index d1005c8ab1..ef47ceaf1d 100644
--- a/libavcodec/mjpegenc.c
+++ b/libavcodec/mjpegenc.c
@@ -450,9 +450,9 @@ AVCodec ff_mjpeg_encoder = {
     .type           = AVMEDIA_TYPE_VIDEO,
     .id             = CODEC_ID_MJPEG,
     .priv_data_size = sizeof(MpegEncContext),
-    .init           = MPV_encode_init,
-    .encode         = MPV_encode_picture,
-    .close          = MPV_encode_end,
+    .init           = ff_MPV_encode_init,
+    .encode         = ff_MPV_encode_picture,
+    .close          = ff_MPV_encode_end,
     .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_NONE},
     .long_name= NULL_IF_CONFIG_SMALL("MJPEG (Motion JPEG)"),
 };
diff --git a/libavcodec/mpeg12.c b/libavcodec/mpeg12.c
index da4dd2c170..4b526eb6ef 100644
--- a/libavcodec/mpeg12.c
+++ b/libavcodec/mpeg12.c
@@ -1117,7 +1117,7 @@ static av_cold int mpeg_decode_init(AVCodecContext *avctx)
     for (i = 0; i < 64; i++)
        s2->dsp.idct_permutation[i]=i;
 
-    MPV_decode_defaults(s2);
+    ff_MPV_decode_defaults(s2);
 
     s->mpeg_enc_ctx.avctx  = avctx;
     s->mpeg_enc_ctx.flags  = avctx->flags;
@@ -1219,7 +1219,7 @@ static int mpeg_decode_postinit(AVCodecContext *avctx)
         if (s1->mpeg_enc_ctx_allocated) {
             ParseContext pc = s->parse_context;
             s->parse_context.buffer = 0;
-            MPV_common_end(s);
+            ff_MPV_common_end(s);
             s->parse_context = pc;
         }
 
@@ -1298,7 +1298,7 @@ static int mpeg_decode_postinit(AVCodecContext *avctx)
          * if DCT permutation is changed. */
         memcpy(old_permutation, s->dsp.idct_permutation, 64 * sizeof(uint8_t));
 
-        if (MPV_common_init(s) < 0)
+        if (ff_MPV_common_init(s) < 0)
             return -2;
 
         quant_matrix_rebuild(s->intra_matrix,        old_permutation, s->dsp.idct_permutation);
@@ -1563,7 +1563,7 @@ static int mpeg_field_start(MpegEncContext *s, const uint8_t *buf, int buf_size)
 
     /* start frame decoding */
     if (s->first_field || s->picture_structure == PICT_FRAME) {
-        if (MPV_frame_start(s, avctx) < 0)
+        if (ff_MPV_frame_start(s, avctx) < 0)
             return -1;
 
         ff_er_frame_start(s);
@@ -1753,13 +1753,13 @@ static int mpeg_decode_slice(MpegEncContext *s, int mb_y,
         s->dest[1] +=(16 >> lowres) >> s->chroma_x_shift;
         s->dest[2] +=(16 >> lowres) >> s->chroma_x_shift;
 
-        MPV_decode_mb(s, s->block);
+        ff_MPV_decode_mb(s, s->block);
 
         if (++s->mb_x >= s->mb_width) {
             const int mb_size = 16 >> s->avctx->lowres;
 
             ff_draw_horiz_band(s, mb_size*(s->mb_y >> field_pic), mb_size);
-            MPV_report_decode_progress(s);
+            ff_MPV_report_decode_progress(s);
 
             s->mb_x = 0;
             s->mb_y += 1 << field_pic;
@@ -1912,7 +1912,7 @@ static int slice_end(AVCodecContext *avctx, AVFrame *pict)
 
         ff_er_frame_end(s);
 
-        MPV_frame_end(s);
+        ff_MPV_frame_end(s);
 
         if (s->pict_type == AV_PICTURE_TYPE_B || s->low_delay) {
             *pict = *(AVFrame*)s->current_picture_ptr;
@@ -2022,7 +2022,7 @@ static int vcr2_init_sequence(AVCodecContext *avctx)
     /* start new MPEG-1 context decoding */
     s->out_format = FMT_MPEG1;
     if (s1->mpeg_enc_ctx_allocated) {
-        MPV_common_end(s);
+        ff_MPV_common_end(s);
     }
     s->width  = avctx->coded_width;
     s->height = avctx->coded_height;
@@ -2037,7 +2037,7 @@ static int vcr2_init_sequence(AVCodecContext *avctx)
         if (avctx->idct_algo == FF_IDCT_AUTO)
             avctx->idct_algo = FF_IDCT_SIMPLE;
 
-    if (MPV_common_init(s) < 0)
+    if (ff_MPV_common_init(s) < 0)
         return -1;
     exchange_uv(s); // common init reset pblocks, so we swap them here
     s->swap_uv = 1; // in case of xvmc we need to swap uv for each MB
@@ -2478,7 +2478,7 @@ static int mpeg_decode_end(AVCodecContext *avctx)
     Mpeg1Context *s = avctx->priv_data;
 
     if (s->mpeg_enc_ctx_allocated)
-        MPV_common_end(&s->mpeg_enc_ctx);
+        ff_MPV_common_end(&s->mpeg_enc_ctx);
     return 0;
 }
 
diff --git a/libavcodec/mpeg12enc.c b/libavcodec/mpeg12enc.c
index 90da1ee34c..be2f1e9002 100644
--- a/libavcodec/mpeg12enc.c
+++ b/libavcodec/mpeg12enc.c
@@ -131,7 +131,7 @@ static av_cold int encode_init(AVCodecContext *avctx)
 {
     MpegEncContext *s = avctx->priv_data;
 
-    if(MPV_encode_init(avctx) < 0)
+    if(ff_MPV_encode_init(avctx) < 0)
         return -1;
 
     if(find_frame_rate_index(s) < 0){
@@ -954,8 +954,8 @@ AVCodec ff_mpeg1video_encoder = {
     .id             = CODEC_ID_MPEG1VIDEO,
     .priv_data_size = sizeof(MpegEncContext),
     .init           = encode_init,
-    .encode         = MPV_encode_picture,
-    .close          = MPV_encode_end,
+    .encode         = ff_MPV_encode_picture,
+    .close          = ff_MPV_encode_end,
     .supported_framerates= avpriv_frame_rate_tab+1,
     .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
     .capabilities= CODEC_CAP_DELAY | CODEC_CAP_SLICE_THREADS,
@@ -969,8 +969,8 @@ AVCodec ff_mpeg2video_encoder = {
     .id             = CODEC_ID_MPEG2VIDEO,
     .priv_data_size = sizeof(MpegEncContext),
     .init           = encode_init,
-    .encode         = MPV_encode_picture,
-    .close          = MPV_encode_end,
+    .encode         = ff_MPV_encode_picture,
+    .close          = ff_MPV_encode_end,
     .supported_framerates= avpriv_frame_rate_tab+1,
     .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE},
     .capabilities= CODEC_CAP_DELAY | CODEC_CAP_SLICE_THREADS,
diff --git a/libavcodec/mpeg4videoenc.c b/libavcodec/mpeg4videoenc.c
index 22997f303c..633c8d24c5 100644
--- a/libavcodec/mpeg4videoenc.c
+++ b/libavcodec/mpeg4videoenc.c
@@ -1222,7 +1222,7 @@ static av_cold int encode_init(AVCodecContext *avctx)
     int ret;
     static int done = 0;
 
-    if((ret=MPV_encode_init(avctx)) < 0)
+    if((ret=ff_MPV_encode_init(avctx)) < 0)
         return ret;
 
     if (!done) {
@@ -1336,8 +1336,8 @@ AVCodec ff_mpeg4_encoder = {
     .id             = CODEC_ID_MPEG4,
     .priv_data_size = sizeof(MpegEncContext),
     .init           = encode_init,
-    .encode         = MPV_encode_picture,
-    .close          = MPV_encode_end,
+    .encode         = ff_MPV_encode_picture,
+    .close          = ff_MPV_encode_end,
     .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
     .capabilities= CODEC_CAP_DELAY | CODEC_CAP_SLICE_THREADS,
     .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2"),
diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
index 7ab79c3217..d894ee4748 100644
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@@ -188,17 +188,17 @@ av_cold int ff_dct_common_init(MpegEncContext *s)
     s->dct_unquantize_mpeg2_inter = dct_unquantize_mpeg2_inter_c;
 
 #if HAVE_MMX
-    MPV_common_init_mmx(s);
+    ff_MPV_common_init_mmx(s);
 #elif ARCH_ALPHA
-    MPV_common_init_axp(s);
+    ff_MPV_common_init_axp(s);
 #elif HAVE_MMI
-    MPV_common_init_mmi(s);
+    ff_MPV_common_init_mmi(s);
 #elif ARCH_ARM
-    MPV_common_init_arm(s);
+    ff_MPV_common_init_arm(s);
 #elif HAVE_ALTIVEC
-    MPV_common_init_altivec(s);
+    ff_MPV_common_init_altivec(s);
 #elif ARCH_BFIN
-    MPV_common_init_bfin(s);
+    ff_MPV_common_init_bfin(s);
 #endif
 
     /* load & permutate scantables
@@ -458,7 +458,7 @@ static int init_duplicate_context(MpegEncContext *s, MpegEncContext *base)
 
     return 0;
 fail:
-    return -1; // free() through MPV_common_end()
+    return -1; // free() through ff_MPV_common_end()
 }
 
 static void free_duplicate_context(MpegEncContext *s)
@@ -543,7 +543,7 @@ int ff_mpeg_update_thread_context(AVCodecContext *dst,
         s->bitstream_buffer      = NULL;
         s->bitstream_buffer_size = s->allocated_bitstream_buffer_size = 0;
 
-        MPV_common_init(s);
+        ff_MPV_common_init(s);
     }
 
     s->avctx->coded_height  = s1->avctx->coded_height;
@@ -615,7 +615,7 @@ int ff_mpeg_update_thread_context(AVCodecContext *dst,
  * The changed fields will not depend upon the
  * prior state of the MpegEncContext.
  */
-void MPV_common_defaults(MpegEncContext *s)
+void ff_MPV_common_defaults(MpegEncContext *s)
 {
     s->y_dc_scale_table      =
     s->c_dc_scale_table      = ff_mpeg1_dc_scale_table;
@@ -644,16 +644,16 @@ void MPV_common_defaults(MpegEncContext *s)
  * the changed fields will not depend upon
  * the prior state of the MpegEncContext.
  */
-void MPV_decode_defaults(MpegEncContext *s)
+void ff_MPV_decode_defaults(MpegEncContext *s)
 {
-    MPV_common_defaults(s);
+    ff_MPV_common_defaults(s);
 }
 
 /**
  * init common structure for both encoder and decoder.
  * this assumes that some variables like width/height are already set
  */
-av_cold int MPV_common_init(MpegEncContext *s)
+av_cold int ff_MPV_common_init(MpegEncContext *s)
 {
     int y_size, c_size, yc_size, i, mb_array_size, mv_table_size, x, y;
     int nb_slices = (HAVE_THREADS &&
@@ -913,12 +913,12 @@ av_cold int MPV_common_init(MpegEncContext *s)
 
     return 0;
  fail:
-    MPV_common_end(s);
+    ff_MPV_common_end(s);
     return -1;
 }
 
 /* init common structure for both encoder and decoder */
-void MPV_common_end(MpegEncContext *s)
+void ff_MPV_common_end(MpegEncContext *s)
 {
     int i, j, k;
 
@@ -1158,7 +1158,7 @@ static void update_noise_reduction(MpegEncContext *s)
  * generic function for encode/decode called after coding/decoding
  * the header and before a frame is coded/decoded.
  */
-int MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx)
+int ff_MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx)
 {
     int i;
     Picture *pic;
@@ -1347,7 +1347,7 @@ int MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx)
 
 /* generic function for encode/decode called after a
  * frame has been coded/decoded. */
-void MPV_frame_end(MpegEncContext *s)
+void ff_MPV_frame_end(MpegEncContext *s)
 {
     int i;
     /* redraw edges for the frame if decoding didn't complete */
@@ -2175,7 +2175,7 @@ static inline void MPV_motion_lowres(MpegEncContext *s,
 /**
  * find the lowest MB row referenced in the MVs
  */
-int MPV_lowest_referenced_row(MpegEncContext *s, int dir)
+int ff_MPV_lowest_referenced_row(MpegEncContext *s, int dir)
 {
     int my_max = INT_MIN, my_min = INT_MAX, qpel_shift = !s->quarter_sample;
     int my, off, i, mvs;
@@ -2365,10 +2365,10 @@ void MPV_decode_mb_internal(MpegEncContext *s, DCTELEM block[12][64],
 
                 if(HAVE_THREADS && s->avctx->active_thread_type&FF_THREAD_FRAME) {
                     if (s->mv_dir & MV_DIR_FORWARD) {
-                        ff_thread_await_progress((AVFrame*)s->last_picture_ptr, MPV_lowest_referenced_row(s, 0), 0);
+                        ff_thread_await_progress((AVFrame*)s->last_picture_ptr, ff_MPV_lowest_referenced_row(s, 0), 0);
                     }
                     if (s->mv_dir & MV_DIR_BACKWARD) {
-                        ff_thread_await_progress((AVFrame*)s->next_picture_ptr, MPV_lowest_referenced_row(s, 1), 0);
+                        ff_thread_await_progress((AVFrame*)s->next_picture_ptr, ff_MPV_lowest_referenced_row(s, 1), 0);
                     }
                 }
 
@@ -2519,7 +2519,7 @@ skip_idct:
     }
 }
 
-void MPV_decode_mb(MpegEncContext *s, DCTELEM block[12][64]){
+void ff_MPV_decode_mb(MpegEncContext *s, DCTELEM block[12][64]){
 #if !CONFIG_SMALL
     if(s->out_format == FMT_MPEG1) {
         if(s->avctx->lowres) MPV_decode_mb_internal(s, block, 1, 1);
@@ -2893,7 +2893,7 @@ void ff_set_qscale(MpegEncContext * s, int qscale)
     s->c_dc_scale= s->c_dc_scale_table[ s->chroma_qscale ];
 }
 
-void MPV_report_decode_progress(MpegEncContext *s)
+void ff_MPV_report_decode_progress(MpegEncContext *s)
 {
     if (s->pict_type != AV_PICTURE_TYPE_B && !s->partitioned_frame && !s->error_occurred)
         ff_thread_report_progress((AVFrame*)s->current_picture_ptr, s->mb_y, 0);
diff --git a/libavcodec/mpegvideo.h b/libavcodec/mpegvideo.h
index 26213f1de1..e542369292 100644
--- a/libavcodec/mpegvideo.h
+++ b/libavcodec/mpegvideo.h
@@ -686,21 +686,21 @@ typedef struct MpegEncContext {
         &new_ctx->picture[pic - old_ctx->picture] : pic - (Picture*)old_ctx + (Picture*)new_ctx)\
     : NULL)
 
-void MPV_decode_defaults(MpegEncContext *s);
-int MPV_common_init(MpegEncContext *s);
-void MPV_common_end(MpegEncContext *s);
-void MPV_decode_mb(MpegEncContext *s, DCTELEM block[12][64]);
-int MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx);
-void MPV_frame_end(MpegEncContext *s);
-int MPV_encode_init(AVCodecContext *avctx);
-int MPV_encode_end(AVCodecContext *avctx);
-int MPV_encode_picture(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data);
-void MPV_common_init_mmx(MpegEncContext *s);
-void MPV_common_init_axp(MpegEncContext *s);
-void MPV_common_init_mmi(MpegEncContext *s);
-void MPV_common_init_arm(MpegEncContext *s);
-void MPV_common_init_altivec(MpegEncContext *s);
-void MPV_common_init_bfin(MpegEncContext *s);
+void ff_MPV_decode_defaults(MpegEncContext *s);
+int ff_MPV_common_init(MpegEncContext *s);
+void ff_MPV_common_end(MpegEncContext *s);
+void ff_MPV_decode_mb(MpegEncContext *s, DCTELEM block[12][64]);
+int ff_MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx);
+void ff_MPV_frame_end(MpegEncContext *s);
+int ff_MPV_encode_init(AVCodecContext *avctx);
+int ff_MPV_encode_end(AVCodecContext *avctx);
+int ff_MPV_encode_picture(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data);
+void ff_MPV_common_init_mmx(MpegEncContext *s);
+void ff_MPV_common_init_axp(MpegEncContext *s);
+void ff_MPV_common_init_mmi(MpegEncContext *s);
+void ff_MPV_common_init_arm(MpegEncContext *s);
+void ff_MPV_common_init_altivec(MpegEncContext *s);
+void ff_MPV_common_init_bfin(MpegEncContext *s);
 void ff_clean_intra_table_entries(MpegEncContext *s);
 void ff_draw_horiz_band(MpegEncContext *s, int y, int h);
 void ff_mpeg_flush(AVCodecContext *avctx);
@@ -710,8 +710,8 @@ void ff_release_unused_pictures(MpegEncContext *s, int remove_current);
 int ff_find_unused_picture(MpegEncContext *s, int shared);
 void ff_denoise_dct(MpegEncContext *s, DCTELEM *block);
 void ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src);
-int MPV_lowest_referenced_row(MpegEncContext *s, int dir);
-void MPV_report_decode_progress(MpegEncContext *s);
+int ff_MPV_lowest_referenced_row(MpegEncContext *s, int dir);
+void ff_MPV_report_decode_progress(MpegEncContext *s);
 int ff_mpeg_update_thread_context(AVCodecContext *dst, const AVCodecContext *src);
 const uint8_t *avpriv_mpv_find_start_code(const uint8_t *p, const uint8_t *end, uint32_t *state);
 void ff_set_qscale(MpegEncContext * s, int qscale);
diff --git a/libavcodec/mpegvideo_common.h b/libavcodec/mpegvideo_common.h
index 5612d4e025..ebf9c7d619 100644
--- a/libavcodec/mpegvideo_common.h
+++ b/libavcodec/mpegvideo_common.h
@@ -45,7 +45,7 @@ int ff_dct_quantize_c(MpegEncContext *s, DCTELEM *block, int n, int qscale, int
  * Set the given MpegEncContext to common defaults (same for encoding and decoding).
  * The changed fields will not depend upon the prior state of the MpegEncContext.
  */
-void MPV_common_defaults(MpegEncContext *s);
+void ff_MPV_common_defaults(MpegEncContext *s);
 
 static inline void gmc1_motion(MpegEncContext *s,
                                uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
diff --git a/libavcodec/mpegvideo_enc.c b/libavcodec/mpegvideo_enc.c
index a674d6315a..10323fc8c0 100644
--- a/libavcodec/mpegvideo_enc.c
+++ b/libavcodec/mpegvideo_enc.c
@@ -264,7 +264,7 @@ static void update_duplicate_context_after_me(MpegEncContext *dst,
 static void MPV_encode_defaults(MpegEncContext *s)
 {
     int i;
-    MPV_common_defaults(s);
+    ff_MPV_common_defaults(s);
 
     for (i = -16; i < 16; i++) {
         default_fcode_tab[i + MAX_MV] = 1;
@@ -274,7 +274,7 @@ static void MPV_encode_defaults(MpegEncContext *s)
 }
 
 /* init video encoder */
-av_cold int MPV_encode_init(AVCodecContext *avctx)
+av_cold int ff_MPV_encode_init(AVCodecContext *avctx)
 {
     MpegEncContext *s = avctx->priv_data;
     int i;
@@ -764,7 +764,7 @@ av_cold int MPV_encode_init(AVCodecContext *avctx)
                                 s->alternate_scan);
 
     /* init */
-    if (MPV_common_init(s) < 0)
+    if (ff_MPV_common_init(s) < 0)
         return -1;
 
     if (!s->dct_quantize)
@@ -831,13 +831,13 @@ av_cold int MPV_encode_init(AVCodecContext *avctx)
     return 0;
 }
 
-av_cold int MPV_encode_end(AVCodecContext *avctx)
+av_cold int ff_MPV_encode_end(AVCodecContext *avctx)
 {
     MpegEncContext *s = avctx->priv_data;
 
     ff_rate_control_uninit(s);
 
-    MPV_common_end(s);
+    ff_MPV_common_end(s);
     if ((CONFIG_MJPEG_ENCODER || CONFIG_LJPEG_ENCODER) &&
         s->out_format == FMT_MJPEG)
         ff_mjpeg_encode_close(s);
@@ -1373,8 +1373,8 @@ no_output_pic:
     return 0;
 }
 
-int MPV_encode_picture(AVCodecContext *avctx,
-                       unsigned char *buf, int buf_size, void *data)
+int ff_MPV_encode_picture(AVCodecContext *avctx,
+                          unsigned char *buf, int buf_size, void *data)
 {
     MpegEncContext *s = avctx->priv_data;
     AVFrame *pic_arg  = data;
@@ -1406,7 +1406,7 @@ int MPV_encode_picture(AVCodecContext *avctx,
         //emms_c();
         //printf("qs:%f %f %d\n", s->new_picture.quality,
         //       s->current_picture.quality, s->qscale);
-        MPV_frame_start(s, avctx);
+        ff_MPV_frame_start(s, avctx);
 vbv_retry:
         if (encode_picture(s, s->picture_number) < 0)
             return -1;
@@ -1421,7 +1421,7 @@ vbv_retry:
         avctx->p_count     = s->mb_num - s->i_count - s->skip_count;
         avctx->skip_count  = s->skip_count;
 
-        MPV_frame_end(s);
+        ff_MPV_frame_end(s);
 
         if (CONFIG_MJPEG_ENCODER && s->out_format == FMT_MJPEG)
             ff_mjpeg_encode_picture_trailer(s);
@@ -2137,7 +2137,7 @@ static inline void encode_mb_hq(MpegEncContext *s, MpegEncContext *backup, MpegE
     }
 
     if(s->avctx->mb_decision == FF_MB_DECISION_RD){
-        MPV_decode_mb(s, s->block);
+        ff_MPV_decode_mb(s, s->block);
 
         score *= s->lambda2;
         score += sse_mb(s) << FF_LAMBDA_SHIFT;
@@ -2743,7 +2743,7 @@ static int encode_thread(AVCodecContext *c, void *arg){
                 }
 
                 if(s->avctx->mb_decision == FF_MB_DECISION_BITS)
-                    MPV_decode_mb(s, s->block);
+                    ff_MPV_decode_mb(s, s->block);
             } else {
                 int motion_x = 0, motion_y = 0;
                 s->mv_type=MV_TYPE_16X16;
@@ -2863,7 +2863,7 @@ static int encode_thread(AVCodecContext *c, void *arg){
                     s->out_format == FMT_H263 && s->pict_type!=AV_PICTURE_TYPE_B)
                     ff_h263_update_motion_val(s);
 
-                MPV_decode_mb(s, s->block);
+                ff_MPV_decode_mb(s, s->block);
             }
 
             /* clean the MV table in IPS frames for direct mode in B frames */
@@ -4040,9 +4040,9 @@ AVCodec ff_h263_encoder = {
     .type           = AVMEDIA_TYPE_VIDEO,
     .id             = CODEC_ID_H263,
     .priv_data_size = sizeof(MpegEncContext),
-    .init           = MPV_encode_init,
-    .encode         = MPV_encode_picture,
-    .close          = MPV_encode_end,
+    .init           = ff_MPV_encode_init,
+    .encode         = ff_MPV_encode_picture,
+    .close          = ff_MPV_encode_end,
     .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
     .long_name= NULL_IF_CONFIG_SMALL("H.263 / H.263-1996"),
     .priv_class     = &h263_class,
@@ -4067,9 +4067,9 @@ AVCodec ff_h263p_encoder = {
     .type           = AVMEDIA_TYPE_VIDEO,
     .id             = CODEC_ID_H263P,
     .priv_data_size = sizeof(MpegEncContext),
-    .init           = MPV_encode_init,
-    .encode         = MPV_encode_picture,
-    .close          = MPV_encode_end,
+    .init           = ff_MPV_encode_init,
+    .encode         = ff_MPV_encode_picture,
+    .close          = ff_MPV_encode_end,
     .capabilities = CODEC_CAP_SLICE_THREADS,
     .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
     .long_name= NULL_IF_CONFIG_SMALL("H.263+ / H.263-1998 / H.263 version 2"),
@@ -4081,9 +4081,9 @@ AVCodec ff_msmpeg4v2_encoder = {
     .type           = AVMEDIA_TYPE_VIDEO,
     .id             = CODEC_ID_MSMPEG4V2,
     .priv_data_size = sizeof(MpegEncContext),
-    .init           = MPV_encode_init,
-    .encode         = MPV_encode_picture,
-    .close          = MPV_encode_end,
+    .init           = ff_MPV_encode_init,
+    .encode         = ff_MPV_encode_picture,
+    .close          = ff_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 2"),
 };
@@ -4093,9 +4093,9 @@ AVCodec ff_msmpeg4v3_encoder = {
     .type           = AVMEDIA_TYPE_VIDEO,
     .id             = CODEC_ID_MSMPEG4V3,
     .priv_data_size = sizeof(MpegEncContext),
-    .init           = MPV_encode_init,
-    .encode         = MPV_encode_picture,
-    .close          = MPV_encode_end,
+    .init           = ff_MPV_encode_init,
+    .encode         = ff_MPV_encode_picture,
+    .close          = ff_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 3"),
 };
@@ -4105,9 +4105,9 @@ AVCodec ff_wmv1_encoder = {
     .type           = AVMEDIA_TYPE_VIDEO,
     .id             = CODEC_ID_WMV1,
     .priv_data_size = sizeof(MpegEncContext),
-    .init           = MPV_encode_init,
-    .encode         = MPV_encode_picture,
-    .close          = MPV_encode_end,
+    .init           = ff_MPV_encode_init,
+    .encode         = ff_MPV_encode_picture,
+    .close          = ff_MPV_encode_end,
     .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
     .long_name= NULL_IF_CONFIG_SMALL("Windows Media Video 7"),
 };
diff --git a/libavcodec/ppc/mpegvideo_altivec.c b/libavcodec/ppc/mpegvideo_altivec.c
index a033cd7372..0eb63bc947 100644
--- a/libavcodec/ppc/mpegvideo_altivec.c
+++ b/libavcodec/ppc/mpegvideo_altivec.c
@@ -554,7 +554,7 @@ static void dct_unquantize_h263_altivec(MpegEncContext *s,
 }
 
 
-void MPV_common_init_altivec(MpegEncContext *s)
+void ff_MPV_common_init_altivec(MpegEncContext *s)
 {
     if (!(av_get_cpu_flags() & AV_CPU_FLAG_ALTIVEC)) return;
 
diff --git a/libavcodec/rv10.c b/libavcodec/rv10.c
index a282ba7724..75d529f42d 100644
--- a/libavcodec/rv10.c
+++ b/libavcodec/rv10.c
@@ -351,11 +351,11 @@ static int rv20_decode_picture_header(MpegEncContext *s)
             av_log(s->avctx, AV_LOG_DEBUG, "attempting to change resolution to %dx%d\n", new_w, new_h);
             if (av_image_check_size(new_w, new_h, 0, s->avctx) < 0)
                 return -1;
-            MPV_common_end(s);
+            ff_MPV_common_end(s);
             avcodec_set_dimensions(s->avctx, new_w, new_h);
             s->width  = new_w;
             s->height = new_h;
-            if (MPV_common_init(s) < 0)
+            if (ff_MPV_common_init(s) < 0)
                 return -1;
         }
 
@@ -427,7 +427,7 @@ static av_cold int rv10_decode_init(AVCodecContext *avctx)
         return -1;
     }
 
-    MPV_decode_defaults(s);
+    ff_MPV_decode_defaults(s);
 
     s->avctx= avctx;
     s->out_format = FMT_H263;
@@ -468,7 +468,7 @@ static av_cold int rv10_decode_init(AVCodecContext *avctx)
 
     avctx->pix_fmt = PIX_FMT_YUV420P;
 
-    if (MPV_common_init(s) < 0)
+    if (ff_MPV_common_init(s) < 0)
         return -1;
 
     ff_h263_decode_init_vlc(s);
@@ -491,7 +491,7 @@ static av_cold int rv10_decode_end(AVCodecContext *avctx)
 {
     MpegEncContext *s = avctx->priv_data;
 
-    MPV_common_end(s);
+    ff_MPV_common_end(s);
     return 0;
 }
 
@@ -526,10 +526,10 @@ static int rv10_decode_packet(AVCodecContext *avctx,
     if ((s->mb_x == 0 && s->mb_y == 0) || s->current_picture_ptr==NULL) {
         if(s->current_picture_ptr){ //FIXME write parser so we always have complete frames?
             ff_er_frame_end(s);
-            MPV_frame_end(s);
+            ff_MPV_frame_end(s);
             s->mb_x= s->mb_y = s->resync_mb_x = s->resync_mb_y= 0;
         }
-        if(MPV_frame_start(s, avctx) < 0)
+        if(ff_MPV_frame_start(s, avctx) < 0)
             return -1;
         ff_er_frame_start(s);
     } else {
@@ -596,7 +596,7 @@ static int rv10_decode_packet(AVCodecContext *avctx,
         }
         if(s->pict_type != AV_PICTURE_TYPE_B)
             ff_h263_update_motion_val(s);
-        MPV_decode_mb(s, s->block);
+        ff_MPV_decode_mb(s, s->block);
         if(s->loop_filter)
             ff_h263_loop_filter(s);
 
@@ -674,7 +674,7 @@ static int rv10_decode_frame(AVCodecContext *avctx,
 
     if(s->current_picture_ptr != NULL && s->mb_y>=s->mb_height){
         ff_er_frame_end(s);
-        MPV_frame_end(s);
+        ff_MPV_frame_end(s);
 
         if (s->pict_type == AV_PICTURE_TYPE_B || s->low_delay) {
             *pict= *(AVFrame*)s->current_picture_ptr;
diff --git a/libavcodec/rv10enc.c b/libavcodec/rv10enc.c
index b8d5bdfd46..0591cec479 100644
--- a/libavcodec/rv10enc.c
+++ b/libavcodec/rv10enc.c
@@ -61,9 +61,9 @@ AVCodec ff_rv10_encoder = {
     .type           = AVMEDIA_TYPE_VIDEO,
     .id             = CODEC_ID_RV10,
     .priv_data_size = sizeof(MpegEncContext),
-    .init           = MPV_encode_init,
-    .encode         = MPV_encode_picture,
-    .close          = MPV_encode_end,
+    .init           = ff_MPV_encode_init,
+    .encode         = ff_MPV_encode_picture,
+    .close          = ff_MPV_encode_end,
     .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
     .long_name= NULL_IF_CONFIG_SMALL("RealVideo 1.0"),
 };
diff --git a/libavcodec/rv20enc.c b/libavcodec/rv20enc.c
index 78ebb46c2a..bd80c155e6 100644
--- a/libavcodec/rv20enc.c
+++ b/libavcodec/rv20enc.c
@@ -62,9 +62,9 @@ AVCodec ff_rv20_encoder = {
     .type           = AVMEDIA_TYPE_VIDEO,
     .id             = CODEC_ID_RV20,
     .priv_data_size = sizeof(MpegEncContext),
-    .init           = MPV_encode_init,
-    .encode         = MPV_encode_picture,
-    .close          = MPV_encode_end,
+    .init           = ff_MPV_encode_init,
+    .encode         = ff_MPV_encode_picture,
+    .close          = ff_MPV_encode_end,
     .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
     .long_name= NULL_IF_CONFIG_SMALL("RealVideo 2.0"),
 };
diff --git a/libavcodec/rv34.c b/libavcodec/rv34.c
index da8e79e04c..e15affeb8d 100644
--- a/libavcodec/rv34.c
+++ b/libavcodec/rv34.c
@@ -1427,17 +1427,17 @@ static int rv34_decode_slice(RV34DecContext *r, int end, const uint8_t* buf, int
 
             av_log(s->avctx, AV_LOG_WARNING, "Changing dimensions to %dx%d\n",
                    r->si.width, r->si.height);
-            MPV_common_end(s);
+            ff_MPV_common_end(s);
             s->width  = r->si.width;
             s->height = r->si.height;
             avcodec_set_dimensions(s->avctx, s->width, s->height);
-            if ((err = MPV_common_init(s)) < 0)
+            if ((err = ff_MPV_common_init(s)) < 0)
                 return err;
             if ((err = rv34_decoder_realloc(r)) < 0)
                 return err;
         }
         s->pict_type = r->si.type ? r->si.type : AV_PICTURE_TYPE_I;
-        if(MPV_frame_start(s, s->avctx) < 0)
+        if(ff_MPV_frame_start(s, s->avctx) < 0)
             return -1;
         ff_er_frame_start(s);
         if (!r->tmp_b_block_base) {
@@ -1541,7 +1541,7 @@ av_cold int ff_rv34_decode_init(AVCodecContext *avctx)
     MpegEncContext *s = &r->s;
     int ret;
 
-    MPV_decode_defaults(s);
+    ff_MPV_decode_defaults(s);
     s->avctx      = avctx;
     s->out_format = FMT_H263;
     s->codec_id   = avctx->codec_id;
@@ -1556,7 +1556,7 @@ av_cold int ff_rv34_decode_init(AVCodecContext *avctx)
     avctx->has_b_frames = 1;
     s->low_delay = 0;
 
-    if ((ret = MPV_common_init(s)) < 0)
+    if ((ret = ff_MPV_common_init(s)) < 0)
         return ret;
 
     ff_h264_pred_init(&r->h, CODEC_ID_RV40, 8, 1);
@@ -1588,7 +1588,7 @@ int ff_rv34_decode_init_thread_copy(AVCodecContext *avctx)
 
     if (avctx->internal->is_copy) {
         r->tmp_b_block_base = NULL;
-        if ((err = MPV_common_init(&r->s)) < 0)
+        if ((err = ff_MPV_common_init(&r->s)) < 0)
             return err;
         if ((err = rv34_decoder_alloc(r)) < 0)
             return err;
@@ -1606,10 +1606,10 @@ int ff_rv34_decode_update_thread_context(AVCodecContext *dst, const AVCodecConte
         return 0;
 
     if (s->height != s1->height || s->width != s1->width) {
-        MPV_common_end(s);
+        ff_MPV_common_end(s);
         s->height = s1->height;
         s->width  = s1->width;
-        if ((err = MPV_common_init(s)) < 0)
+        if ((err = ff_MPV_common_init(s)) < 0)
             return err;
         if ((err = rv34_decoder_realloc(r)) < 0)
             return err;
@@ -1625,7 +1625,7 @@ int ff_rv34_decode_update_thread_context(AVCodecContext *dst, const AVCodecConte
     memset(&r->si, 0, sizeof(r->si));
 
     /* necessary since it is it the condition checked for in decode_slice
-     * to call MPV_frame_start. cmp. comment at the end of decode_frame */
+     * to call ff_MPV_frame_start. cmp. comment at the end of decode_frame */
     s->current_picture_ptr = NULL;
 
     return 0;
@@ -1737,7 +1737,7 @@ int ff_rv34_decode_frame(AVCodecContext *avctx,
         if(r->loop_filter)
             r->loop_filter(r, s->mb_height - 1);
         ff_er_frame_end(s);
-        MPV_frame_end(s);
+        ff_MPV_frame_end(s);
 
         if (HAVE_THREADS && (s->avctx->active_thread_type & FF_THREAD_FRAME))
             ff_thread_report_progress(&s->current_picture_ptr->f, INT_MAX, 0);
@@ -1761,7 +1761,7 @@ av_cold int ff_rv34_decode_end(AVCodecContext *avctx)
 {
     RV34DecContext *r = avctx->priv_data;
 
-    MPV_common_end(&r->s);
+    ff_MPV_common_end(&r->s);
     rv34_decoder_free(r);
 
     return 0;
diff --git a/libavcodec/svq1dec.c b/libavcodec/svq1dec.c
index 1cbf1f51c9..80f96c8cc6 100644
--- a/libavcodec/svq1dec.c
+++ b/libavcodec/svq1dec.c
@@ -670,7 +670,7 @@ static int svq1_decode_frame(AVCodecContext *avctx,
      || avctx->skip_frame >= AVDISCARD_ALL)
       return buf_size;
 
-  if(MPV_frame_start(s, avctx) < 0)
+  if(ff_MPV_frame_start(s, avctx) < 0)
       return -1;
 
   pmv = av_malloc((FFALIGN(s->width, 16)/8 + 3) * sizeof(*pmv));
@@ -738,7 +738,7 @@ static int svq1_decode_frame(AVCodecContext *avctx,
   *pict = *(AVFrame*)&s->current_picture;
 
 
-  MPV_frame_end(s);
+  ff_MPV_frame_end(s);
 
   *data_size=sizeof(AVFrame);
   result = buf_size;
@@ -753,7 +753,7 @@ static av_cold int svq1_decode_init(AVCodecContext *avctx)
     int i;
     int offset = 0;
 
-    MPV_decode_defaults(s);
+    ff_MPV_decode_defaults(s);
 
     s->avctx = avctx;
     s->width = (avctx->width+3)&~3;
@@ -762,7 +762,7 @@ static av_cold int svq1_decode_init(AVCodecContext *avctx)
     avctx->pix_fmt = PIX_FMT_YUV410P;
     avctx->has_b_frames= 1; // not true, but DP frames and these behave like unidirectional b frames
     s->flags= avctx->flags;
-    if (MPV_common_init(s) < 0) return -1;
+    if (ff_MPV_common_init(s) < 0) return -1;
 
     INIT_VLC_STATIC(&svq1_block_type, 2, 4,
         &ff_svq1_block_type_vlc[0][1], 2, 1,
@@ -804,7 +804,7 @@ static av_cold int svq1_decode_end(AVCodecContext *avctx)
 {
     MpegEncContext *s = avctx->priv_data;
 
-    MPV_common_end(s);
+    ff_MPV_common_end(s);
     return 0;
 }
 
diff --git a/libavcodec/svq3.c b/libavcodec/svq3.c
index eeb8ed7051..73de55a457 100644
--- a/libavcodec/svq3.c
+++ b/libavcodec/svq3.c
@@ -928,7 +928,7 @@ static av_cold int svq3_decode_init(AVCodecContext *avctx)
         s->width  = avctx->width;
         s->height = avctx->height;
 
-        if (MPV_common_init(s) < 0)
+        if (ff_MPV_common_init(s) < 0)
             return -1;
 
         h->b_stride = 4*s->mb_width;
@@ -1073,7 +1073,7 @@ static int svq3_decode_frame(AVCodecContext *avctx,
         ff_draw_horiz_band(s, 16*s->mb_y, 16);
     }
 
-    MPV_frame_end(s);
+    ff_MPV_frame_end(s);
 
     if (s->pict_type == AV_PICTURE_TYPE_B || s->low_delay) {
         *(AVFrame *) data = *(AVFrame *) &s->current_picture;
@@ -1097,7 +1097,7 @@ static int svq3_decode_end(AVCodecContext *avctx)
 
     ff_h264_free_context(h);
 
-    MPV_common_end(s);
+    ff_MPV_common_end(s);
 
     return 0;
 }
diff --git a/libavcodec/vc1dec.c b/libavcodec/vc1dec.c
index a8e8340211..c66260996f 100644
--- a/libavcodec/vc1dec.c
+++ b/libavcodec/vc1dec.c
@@ -5396,7 +5396,7 @@ static av_cold int vc1_decode_end(AVCodecContext *avctx)
         av_freep(&v->sr_rows[i >> 1][i & 1]);
     av_freep(&v->hrd_rate);
     av_freep(&v->hrd_buffer);
-    MPV_common_end(&v->s);
+    ff_MPV_common_end(&v->s);
     av_freep(&v->mv_type_mb_plane);
     av_freep(&v->direct_mb_plane);
     av_freep(&v->forward_mb_plane);
@@ -5648,7 +5648,7 @@ static int vc1_decode_frame(AVCodecContext *avctx, void *data,
             s->next_p_frame_damaged = 0;
     }
 
-    if (MPV_frame_start(s, avctx) < 0) {
+    if (ff_MPV_frame_start(s, avctx) < 0) {
         goto err;
     }
 
@@ -5732,7 +5732,7 @@ static int vc1_decode_frame(AVCodecContext *avctx, void *data,
         ff_er_frame_end(s);
     }
 
-    MPV_frame_end(s);
+    ff_MPV_frame_end(s);
 
     if (avctx->codec_id == CODEC_ID_WMV3IMAGE || avctx->codec_id == CODEC_ID_VC1IMAGE) {
 image:
diff --git a/libavcodec/wmv2enc.c b/libavcodec/wmv2enc.c
index 9bb14b766a..5ef8d8c48f 100644
--- a/libavcodec/wmv2enc.c
+++ b/libavcodec/wmv2enc.c
@@ -55,7 +55,7 @@ static int encode_ext_header(Wmv2Context *w){
 static av_cold int wmv2_encode_init(AVCodecContext *avctx){
     Wmv2Context * const w= avctx->priv_data;
 
-    if(MPV_encode_init(avctx) < 0)
+    if(ff_MPV_encode_init(avctx) < 0)
         return -1;
 
     ff_wmv2_common_init(w);
@@ -217,8 +217,8 @@ AVCodec ff_wmv2_encoder = {
     .id             = CODEC_ID_WMV2,
     .priv_data_size = sizeof(Wmv2Context),
     .init           = wmv2_encode_init,
-    .encode         = MPV_encode_picture,
-    .close          = MPV_encode_end,
+    .encode         = ff_MPV_encode_picture,
+    .close          = ff_MPV_encode_end,
     .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
     .long_name= NULL_IF_CONFIG_SMALL("Windows Media Video 8"),
 };
diff --git a/libavcodec/x86/mpegvideo_mmx.c b/libavcodec/x86/mpegvideo_mmx.c
index 7181a66914..dcce48638b 100644
--- a/libavcodec/x86/mpegvideo_mmx.c
+++ b/libavcodec/x86/mpegvideo_mmx.c
@@ -626,7 +626,7 @@ static void  denoise_dct_sse2(MpegEncContext *s, DCTELEM *block){
 #include "mpegvideo_mmx_template.c"
 #endif
 
-void MPV_common_init_mmx(MpegEncContext *s)
+void ff_MPV_common_init_mmx(MpegEncContext *s)
 {
     int mm_flags = av_get_cpu_flags();