X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fffv1enc.c;h=9ee992144b34bfa800ff2c4926a0fca5913fb567;hb=16af350ac5b19ee464121a0545f100f6c0063296;hp=4de29345ec19497705850b2b0cc1fce6ccf5df7c;hpb=71b79b587bc17e2332307df2f137a04c8e59b1be;p=ffmpeg

diff --git a/libavcodec/ffv1enc.c b/libavcodec/ffv1enc.c
index 4de29345ec1..9ee992144b3 100644
--- a/libavcodec/ffv1enc.c
+++ b/libavcodec/ffv1enc.c
@@ -373,7 +373,7 @@ static int encode_plane(FFV1Context *s, uint8_t *src, int w, int h,
                          int stride, int plane_index, int pixel_stride)
 {
     int x, y, i, ret;
-    const int ring_size = s->avctx->context_model ? 3 : 2;
+    const int ring_size = s->context_model ? 3 : 2;
     int16_t *sample[3];
     s->run_index = 0;
 
@@ -413,7 +413,7 @@ static int encode_rgb_frame(FFV1Context *s, const uint8_t *src[3],
                              int w, int h, const int stride[3])
 {
     int x, y, p, i;
-    const int ring_size = s->avctx->context_model ? 3 : 2;
+    const int ring_size = s->context_model ? 3 : 2;
     int16_t *sample[4][3];
     int lbd    = s->bits_per_raw_sample <= 8;
     int bits   = s->bits_per_raw_sample > 0 ? s->bits_per_raw_sample : 8;
@@ -535,7 +535,7 @@ static void write_header(FFV1Context *f)
                        0);
             for (j = 0; j < f->plane_count; j++) {
                 put_symbol(c, state, f->plane[j].quant_table_index, 0);
-                av_assert0(f->plane[j].quant_table_index == f->avctx->context_model);
+                av_assert0(f->plane[j].quant_table_index == f->context_model);
             }
         }
     }
@@ -821,10 +821,16 @@ FF_ENABLE_DEPRECATION_WARNINGS
     if (s->transparency) {
         av_log(avctx, AV_LOG_WARNING, "Storing alpha plane, this will require a recent FFV1 decoder to playback!\n");
     }
+#if FF_API_PRIVATE_OPT
+FF_DISABLE_DEPRECATION_WARNINGS
+    if (avctx->context_model)
+        s->context_model = avctx->context_model;
     if (avctx->context_model > 1U) {
         av_log(avctx, AV_LOG_ERROR, "Invalid context model %d, valid values are 0 and 1\n", avctx->context_model);
         return AVERROR(EINVAL);
     }
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
 
     if (s->ac == AC_RANGE_CUSTOM_TAB) {
         for (i = 1; i < 256; i++)
@@ -860,14 +866,14 @@ FF_ENABLE_DEPRECATION_WARNINGS
     }
     s->context_count[0] = (11 * 11 * 11        + 1) / 2;
     s->context_count[1] = (11 * 11 * 5 * 5 * 5 + 1) / 2;
-    memcpy(s->quant_table, s->quant_tables[avctx->context_model],
+    memcpy(s->quant_table, s->quant_tables[s->context_model],
            sizeof(s->quant_table));
 
     for (i = 0; i < s->plane_count; i++) {
         PlaneContext *const p = &s->plane[i];
 
         memcpy(p->quant_table, s->quant_table, sizeof(p->quant_table));
-        p->quant_table_index = avctx->context_model;
+        p->quant_table_index = s->context_model;
         p->context_count     = s->context_count[p->quant_table_index];
     }
 
@@ -1034,7 +1040,7 @@ static void encode_slice_header(FFV1Context *f, FFV1Context *fs)
     put_symbol(c, state, (fs->slice_height+1)*f->num_v_slices / f->height-1, 0);
     for (j=0; j<f->plane_count; j++) {
         put_symbol(c, state, f->plane[j].quant_table_index, 0);
-        av_assert0(f->plane[j].quant_table_index == f->avctx->context_model);
+        av_assert0(f->plane[j].quant_table_index == f->context_model);
     }
     if (!f->picture.f->interlaced_frame)
         put_symbol(c, state, 3, 0);
@@ -1381,6 +1387,8 @@ static const AVOption options[] = {
             { .i64 = AC_RANGE_CUSTOM_TAB }, INT_MIN, INT_MAX, VE, "coder" },
         { "ac", "Range with custom table (the ac option exists for compatibility and is deprecated)", 0, AV_OPT_TYPE_CONST,
             { .i64 = 1 }, INT_MIN, INT_MAX, VE, "coder" },
+    { "context", "Context model", OFFSET(context_model), AV_OPT_TYPE_INT,
+            { .i64 = 0 }, 0, 1, VE },
 
     { NULL }
 };