lavc: document that avcodec_close() should not be used

[ffmpeg] / libavcodec / vc1_mc.c

diff --git a/libavcodec/vc1_mc.c b/libavcodec/vc1_mc.c
index e3a75d584556ffb84fc3e2ac05ab18a654a95aa3..f4632d62476004ba986b89fc4c7e0aaf34a90945 100644 (file)
--- a/libavcodec/vc1_mc.c
+++ b/libavcodec/vc1_mc.c
@@ -54,7 +54,7 @@ void ff_vc1_mc_1mv(VC1Context *v, int dir)
     mx = s->mv[dir][0][0];
     my = s->mv[dir][0][1];
 
-    // store motion vectors for further use in B frames
+    // store motion vectors for further use in B-frames
     if (s->pict_type == AV_PICTURE_TYPE_P) {
         for (i = 0; i < 4; i++) {
             s->current_picture.motion_val[1][s->block_index[i] + v->blocks_off][0] = mx;
@@ -136,24 +136,24 @@ void ff_vc1_mc_1mv(VC1Context *v, int dir)
     }
 
     /* for grayscale we should not try to read from unknown area */
-    if (s->flags & CODEC_FLAG_GRAY) {
-        srcU = s->edge_emu_buffer + 18 * s->linesize;
-        srcV = s->edge_emu_buffer + 18 * s->linesize;
+    if (s->avctx->flags & AV_CODEC_FLAG_GRAY) {
+        srcU = s->sc.edge_emu_buffer + 18 * s->linesize;
+        srcV = s->sc.edge_emu_buffer + 18 * s->linesize;
     }
 
     if (v->rangeredfrm || use_ic
         || s->h_edge_pos < 22 || v_edge_pos < 22
         || (unsigned)(src_x - s->mspel) > s->h_edge_pos - (mx&3) - 16 - s->mspel * 3
         || (unsigned)(src_y - 1)        > v_edge_pos    - (my&3) - 16 - 3) {
-        uint8_t *uvbuf = s->edge_emu_buffer + 19 * s->linesize;
+        uint8_t *uvbuf = s->sc.edge_emu_buffer + 19 * s->linesize;
 
         srcY -= s->mspel * (1 + s->linesize);
-        s->vdsp.emulated_edge_mc(s->edge_emu_buffer, srcY,
+        s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, srcY,
                                  s->linesize, s->linesize,
                                  17 + s->mspel * 2, 17 + s->mspel * 2,
                                  src_x - s->mspel, src_y - s->mspel,
                                  s->h_edge_pos, v_edge_pos);
-        srcY = s->edge_emu_buffer;
+        srcY = s->sc.edge_emu_buffer;
         s->vdsp.emulated_edge_mc(uvbuf, srcU,
                                  s->uvlinesize, s->uvlinesize,
                                  8 + 1, 8 + 1,
@@ -228,7 +228,8 @@ void ff_vc1_mc_1mv(VC1Context *v, int dir)
             s->hdsp.put_no_rnd_pixels_tab[0][dxy](s->dest[0], srcY, s->linesize, 16);
     }
 
-    if (s->flags & CODEC_FLAG_GRAY) return;
+    if (s->avctx->flags & AV_CODEC_FLAG_GRAY)
+        return;
     /* Chroma MC always uses qpel bilinear */
     uvmx = (uvmx & 3) << 1;
     uvmy = (uvmy & 3) << 1;
@@ -394,12 +395,12 @@ void ff_vc1_mc_4mv_luma(VC1Context *v, int n, int dir, int avg)
         || (unsigned)(src_y - (s->mspel << fieldmv)) > v_edge_pos - (my & 3) - ((8 + s->mspel * 2) << fieldmv)) {
         srcY -= s->mspel * (1 + (s->linesize << fieldmv));
         /* check emulate edge stride and offset */
-        s->vdsp.emulated_edge_mc(s->edge_emu_buffer, srcY,
+        s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, srcY,
                                  s->linesize, s->linesize,
                                  9 + s->mspel * 2, (9 + s->mspel * 2) << fieldmv,
                                  src_x - s->mspel, src_y - (s->mspel << fieldmv),
                                  s->h_edge_pos, v_edge_pos);
-        srcY = s->edge_emu_buffer;
+        srcY = s->sc.edge_emu_buffer;
         /* if we deal with range reduction we need to scale source blocks */
         if (v->rangeredfrm) {
             int i, j;
@@ -514,7 +515,7 @@ void ff_vc1_mc_4mv_chroma(VC1Context *v, int dir)
 
     if (!v->field_mode && !v->s.last_picture.f->data[0])
         return;
-    if (s->flags & CODEC_FLAG_GRAY)
+    if (s->avctx->flags & AV_CODEC_FLAG_GRAY)
         return;
 
     for (k = 0; k < 4; k++) {
@@ -610,16 +611,16 @@ void ff_vc1_mc_4mv_chroma(VC1Context *v, int dir)
         || s->h_edge_pos < 18 || v_edge_pos < 18
         || (unsigned)uvsrc_x > (s->h_edge_pos >> 1) - 9
         || (unsigned)uvsrc_y > (v_edge_pos    >> 1) - 9) {
-        s->vdsp.emulated_edge_mc(s->edge_emu_buffer, srcU,
+        s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, srcU,
                                  s->uvlinesize, s->uvlinesize,
                                  8 + 1, 8 + 1, uvsrc_x, uvsrc_y,
                                  s->h_edge_pos >> 1, v_edge_pos >> 1);
-        s->vdsp.emulated_edge_mc(s->edge_emu_buffer + 16, srcV,
+        s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer + 16, srcV,
                                  s->uvlinesize, s->uvlinesize,
                                  8 + 1, 8 + 1, uvsrc_x, uvsrc_y,
                                  s->h_edge_pos >> 1, v_edge_pos >> 1);
-        srcU = s->edge_emu_buffer;
-        srcV = s->edge_emu_buffer + 16;
+        srcU = s->sc.edge_emu_buffer;
+        srcV = s->sc.edge_emu_buffer + 16;
 
         /* if we deal with range reduction we need to scale source blocks */
         if (v->rangeredfrm) {
@@ -685,7 +686,7 @@ void ff_vc1_mc_4mv_chroma4(VC1Context *v, int dir, int dir2, int avg)
     int use_ic;
     uint8_t (*lutuv)[256];
 
-    if (s->flags & CODEC_FLAG_GRAY)
+    if (s->avctx->flags & AV_CODEC_FLAG_GRAY)
         return;
 
     for (i = 0; i < 4; i++) {
@@ -728,16 +729,16 @@ void ff_vc1_mc_4mv_chroma4(VC1Context *v, int dir, int dir2, int avg)
             || s->h_edge_pos < 10 || v_edge_pos < (5 << fieldmv)
             || (unsigned)uvsrc_x > (s->h_edge_pos >> 1) - 5
             || (unsigned)uvsrc_y > v_edge_pos - (5 << fieldmv)) {
-            s->vdsp.emulated_edge_mc(s->edge_emu_buffer, srcU,
+            s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, srcU,
                                      s->uvlinesize, s->uvlinesize,
                                      5, (5 << fieldmv), uvsrc_x, uvsrc_y,
                                      s->h_edge_pos >> 1, v_edge_pos);
-            s->vdsp.emulated_edge_mc(s->edge_emu_buffer + 16, srcV,
+            s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer + 16, srcV,
                                      s->uvlinesize, s->uvlinesize,
                                      5, (5 << fieldmv), uvsrc_x, uvsrc_y,
                                      s->h_edge_pos >> 1, v_edge_pos);
-            srcU = s->edge_emu_buffer;
-            srcV = s->edge_emu_buffer + 16;
+            srcU = s->sc.edge_emu_buffer;
+            srcV = s->sc.edge_emu_buffer + 16;
 
             /* if we deal with intensity compensation we need to scale source blocks */
             if (use_ic) {
@@ -836,23 +837,23 @@ void ff_vc1_interp_mc(VC1Context *v)
     }
 
     /* for grayscale we should not try to read from unknown area */
-    if (s->flags & CODEC_FLAG_GRAY) {
-        srcU = s->edge_emu_buffer + 18 * s->linesize;
-        srcV = s->edge_emu_buffer + 18 * s->linesize;
+    if (s->avctx->flags & AV_CODEC_FLAG_GRAY) {
+        srcU = s->sc.edge_emu_buffer + 18 * s->linesize;
+        srcV = s->sc.edge_emu_buffer + 18 * s->linesize;
     }
 
     if (v->rangeredfrm || s->h_edge_pos < 22 || v_edge_pos < 22 || use_ic
         || (unsigned)(src_x - 1) > s->h_edge_pos - (mx & 3) - 16 - 3
         || (unsigned)(src_y - 1) > v_edge_pos    - (my & 3) - 16 - 3) {
-        uint8_t *uvbuf = s->edge_emu_buffer + 19 * s->linesize;
+        uint8_t *uvbuf = s->sc.edge_emu_buffer + 19 * s->linesize;
 
         srcY -= s->mspel * (1 + s->linesize);
-        s->vdsp.emulated_edge_mc(s->edge_emu_buffer, srcY,
+        s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, srcY,
                                  s->linesize, s->linesize,
                                  17 + s->mspel * 2, 17 + s->mspel * 2,
                                  src_x - s->mspel, src_y - s->mspel,
                                  s->h_edge_pos, v_edge_pos);
-        srcY = s->edge_emu_buffer;
+        srcY = s->sc.edge_emu_buffer;
         s->vdsp.emulated_edge_mc(uvbuf, srcU,
                                  s->uvlinesize, s->uvlinesize,
                                  8 + 1, 8 + 1,
@@ -933,8 +934,9 @@ void ff_vc1_interp_mc(VC1Context *v)
             s->hdsp.avg_no_rnd_pixels_tab[dxy](s->dest[0] + off, srcY, s->linesize, 16);
     }
 
-    if (s->flags & CODEC_FLAG_GRAY) return;
-    /* Chroma MC always uses qpel blilinear */
+    if (s->avctx->flags & AV_CODEC_FLAG_GRAY)
+        return;
+    /* Chroma MC always uses qpel bilinear */
     uvmx = (uvmx & 3) << 1;
     uvmy = (uvmy & 3) << 1;
     if (!v->rnd) {