avcodec/ffv1: template functions to allow data types different from int16_t
authorMichael Niedermayer <michael@niedermayer.cc>
Sun, 7 Aug 2016 21:37:17 +0000 (23:37 +0200)
committerMichael Niedermayer <michael@niedermayer.cc>
Sun, 7 Aug 2016 22:27:43 +0000 (00:27 +0200)
This is required for >= 16bit RGB support
I tried it without templates but its too much duplicated code

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
libavcodec/ffv1.h
libavcodec/ffv1_template.c [new file with mode: 0644]
libavcodec/ffv1dec.c
libavcodec/ffv1dec_template.c [new file with mode: 0644]
libavcodec/ffv1enc.c
libavcodec/ffv1enc_template.c [new file with mode: 0644]

index d9398e5..5f4a340 100644 (file)
@@ -158,37 +158,6 @@ static av_always_inline int fold(int diff, int bits)
     return diff;
 }
 
-static inline int predict(int16_t *src, int16_t *last)
-{
-    const int LT = last[-1];
-    const int T  = last[0];
-    const int L  = src[-1];
-
-    return mid_pred(L, L + T - LT, T);
-}
-
-static inline int get_context(PlaneContext *p, int16_t *src,
-                              int16_t *last, int16_t *last2)
-{
-    const int LT = last[-1];
-    const int T  = last[0];
-    const int RT = last[1];
-    const int L  = src[-1];
-
-    if (p->quant_table[3][127]) {
-        const int TT = last2[0];
-        const int LL = src[-2];
-        return p->quant_table[0][(L - LT) & 0xFF] +
-               p->quant_table[1][(LT - T) & 0xFF] +
-               p->quant_table[2][(T - RT) & 0xFF] +
-               p->quant_table[3][(LL - L) & 0xFF] +
-               p->quant_table[4][(TT - T) & 0xFF];
-    } else
-        return p->quant_table[0][(L - LT) & 0xFF] +
-               p->quant_table[1][(LT - T) & 0xFF] +
-               p->quant_table[2][(T - RT) & 0xFF];
-}
-
 static inline void update_vlc_state(VlcState *const state, const int v)
 {
     int drift = state->drift;
@@ -223,4 +192,10 @@ static inline void update_vlc_state(VlcState *const state, const int v)
     state->count = count;
 }
 
+#define TYPE int16_t
+#define RENAME(name) name
+#include "ffv1_template.c"
+#undef TYPE
+#undef RENAME
+
 #endif /* AVCODEC_FFV1_H */
diff --git a/libavcodec/ffv1_template.c b/libavcodec/ffv1_template.c
new file mode 100644 (file)
index 0000000..f2ab933
--- /dev/null
@@ -0,0 +1,53 @@
+/*
+ * FFV1 codec
+ *
+ * Copyright (c) 2003-2013 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+static inline int RENAME(predict)(TYPE *src, TYPE *last)
+{
+    const int LT = last[-1];
+    const int T  = last[0];
+    const int L  = src[-1];
+
+    return mid_pred(L, L + T - LT, T);
+}
+
+static inline int RENAME(get_context)(PlaneContext *p, TYPE *src,
+                                      TYPE *last, TYPE *last2)
+{
+    const int LT = last[-1];
+    const int T  = last[0];
+    const int RT = last[1];
+    const int L  = src[-1];
+
+    if (p->quant_table[3][127]) {
+        const int TT = last2[0];
+        const int LL = src[-2];
+        return p->quant_table[0][(L - LT) & 0xFF] +
+               p->quant_table[1][(LT - T) & 0xFF] +
+               p->quant_table[2][(T - RT) & 0xFF] +
+               p->quant_table[3][(LL - L) & 0xFF] +
+               p->quant_table[4][(TT - T) & 0xFF];
+    } else
+        return p->quant_table[0][(L - LT) & 0xFF] +
+               p->quant_table[1][(LT - T) & 0xFF] +
+               p->quant_table[2][(T - RT) & 0xFF];
+}
+
index 1e67fd3..e8b726c 100644 (file)
@@ -97,88 +97,12 @@ static inline int get_vlc_symbol(GetBitContext *gb, VlcState *const state,
     return ret;
 }
 
-static av_always_inline void decode_line(FFV1Context *s, int w,
-                                         int16_t *sample[2],
-                                         int plane_index, int bits)
-{
-    PlaneContext *const p = &s->plane[plane_index];
-    RangeCoder *const c   = &s->c;
-    int x;
-    int run_count = 0;
-    int run_mode  = 0;
-    int run_index = s->run_index;
-
-    if (s->slice_coding_mode == 1) {
-        int i;
-        for (x = 0; x < w; x++) {
-            int v = 0;
-            for (i=0; i<bits; i++) {
-                uint8_t state = 128;
-                v += v + get_rac(c, &state);
-            }
-            sample[1][x] = v;
-        }
-        return;
-    }
+#define TYPE int16_t
+#define RENAME(name) name
+#include "ffv1dec_template.c"
+#undef TYPE
+#undef RENAME
 
-    for (x = 0; x < w; x++) {
-        int diff, context, sign;
-
-        context = get_context(p, sample[1] + x, sample[0] + x, sample[1] + x);
-        if (context < 0) {
-            context = -context;
-            sign    = 1;
-        } else
-            sign = 0;
-
-        av_assert2(context < p->context_count);
-
-        if (s->ac != AC_GOLOMB_RICE) {
-            diff = get_symbol_inline(c, p->state[context], 1);
-        } else {
-            if (context == 0 && run_mode == 0)
-                run_mode = 1;
-
-            if (run_mode) {
-                if (run_count == 0 && run_mode == 1) {
-                    if (get_bits1(&s->gb)) {
-                        run_count = 1 << ff_log2_run[run_index];
-                        if (x + run_count <= w)
-                            run_index++;
-                    } else {
-                        if (ff_log2_run[run_index])
-                            run_count = get_bits(&s->gb, ff_log2_run[run_index]);
-                        else
-                            run_count = 0;
-                        if (run_index)
-                            run_index--;
-                        run_mode = 2;
-                    }
-                }
-                run_count--;
-                if (run_count < 0) {
-                    run_mode  = 0;
-                    run_count = 0;
-                    diff      = get_vlc_symbol(&s->gb, &p->vlc_state[context],
-                                               bits);
-                    if (diff >= 0)
-                        diff++;
-                } else
-                    diff = 0;
-            } else
-                diff = get_vlc_symbol(&s->gb, &p->vlc_state[context], bits);
-
-            ff_dlog(s->avctx, "count:%d index:%d, mode:%d, x:%d pos:%d\n",
-                    run_count, run_index, run_mode, x, get_bits_count(&s->gb));
-        }
-
-        if (sign)
-            diff = -diff;
-
-        sample[1][x] = av_mod_uintp2(predict(sample[1] + x, sample[0] + x) + diff, bits);
-    }
-    s->run_index = run_index;
-}
 
 static void decode_plane(FFV1Context *s, uint8_t *src,
                          int w, int h, int stride, int plane_index,
@@ -223,62 +147,6 @@ static void decode_plane(FFV1Context *s, uint8_t *src,
     }
 }
 
-static void decode_rgb_frame(FFV1Context *s, uint8_t *src[3], int w, int h, int stride[3])
-{
-    int x, y, p;
-    int16_t *sample[4][2];
-    int lbd    = s->avctx->bits_per_raw_sample <= 8;
-    int bits   = s->avctx->bits_per_raw_sample > 0 ? s->avctx->bits_per_raw_sample : 8;
-    int offset = 1 << bits;
-
-    for (x = 0; x < 4; x++) {
-        sample[x][0] = s->sample_buffer +  x * 2      * (w + 6) + 3;
-        sample[x][1] = s->sample_buffer + (x * 2 + 1) * (w + 6) + 3;
-    }
-
-    s->run_index = 0;
-
-    memset(s->sample_buffer, 0, 8 * (w + 6) * sizeof(*s->sample_buffer));
-
-    for (y = 0; y < h; y++) {
-        for (p = 0; p < 3 + s->transparency; p++) {
-            int16_t *temp = sample[p][0]; // FIXME: try a normal buffer
-
-            sample[p][0] = sample[p][1];
-            sample[p][1] = temp;
-
-            sample[p][1][-1]= sample[p][0][0  ];
-            sample[p][0][ w]= sample[p][0][w-1];
-            if (lbd && s->slice_coding_mode == 0)
-                decode_line(s, w, sample[p], (p + 1)/2, 9);
-            else
-                decode_line(s, w, sample[p], (p + 1)/2, bits + (s->slice_coding_mode != 1));
-        }
-        for (x = 0; x < w; x++) {
-            int g = sample[0][1][x];
-            int b = sample[1][1][x];
-            int r = sample[2][1][x];
-            int a = sample[3][1][x];
-
-            if (s->slice_coding_mode != 1) {
-                b -= offset;
-                r -= offset;
-                g -= (b * s->slice_rct_by_coef + r * s->slice_rct_ry_coef) >> 2;
-                b += g;
-                r += g;
-            }
-
-            if (lbd)
-                *((uint32_t*)(src[0] + x*4 + stride[0]*y)) = b + (g<<8) + (r<<16) + (a<<24);
-            else {
-                *((uint16_t*)(src[0] + x*2 + stride[0]*y)) = b;
-                *((uint16_t*)(src[1] + x*2 + stride[1]*y)) = g;
-                *((uint16_t*)(src[2] + x*2 + stride[2]*y)) = r;
-            }
-        }
-    }
-}
-
 static int decode_slice_header(FFV1Context *f, FFV1Context *fs)
 {
     RangeCoder *c = &fs->c;
diff --git a/libavcodec/ffv1dec_template.c b/libavcodec/ffv1dec_template.c
new file mode 100644 (file)
index 0000000..5894f93
--- /dev/null
@@ -0,0 +1,160 @@
+/*
+ * FFV1 decoder template
+ *
+ * Copyright (c) 2003-2016 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+static av_always_inline void RENAME(decode_line)(FFV1Context *s, int w,
+                                                 TYPE *sample[2],
+                                                 int plane_index, int bits)
+{
+    PlaneContext *const p = &s->plane[plane_index];
+    RangeCoder *const c   = &s->c;
+    int x;
+    int run_count = 0;
+    int run_mode  = 0;
+    int run_index = s->run_index;
+
+    if (s->slice_coding_mode == 1) {
+        int i;
+        for (x = 0; x < w; x++) {
+            int v = 0;
+            for (i=0; i<bits; i++) {
+                uint8_t state = 128;
+                v += v + get_rac(c, &state);
+            }
+            sample[1][x] = v;
+        }
+        return;
+    }
+
+    for (x = 0; x < w; x++) {
+        int diff, context, sign;
+
+        context = RENAME(get_context)(p, sample[1] + x, sample[0] + x, sample[1] + x);
+        if (context < 0) {
+            context = -context;
+            sign    = 1;
+        } else
+            sign = 0;
+
+        av_assert2(context < p->context_count);
+
+        if (s->ac != AC_GOLOMB_RICE) {
+            diff = get_symbol_inline(c, p->state[context], 1);
+        } else {
+            if (context == 0 && run_mode == 0)
+                run_mode = 1;
+
+            if (run_mode) {
+                if (run_count == 0 && run_mode == 1) {
+                    if (get_bits1(&s->gb)) {
+                        run_count = 1 << ff_log2_run[run_index];
+                        if (x + run_count <= w)
+                            run_index++;
+                    } else {
+                        if (ff_log2_run[run_index])
+                            run_count = get_bits(&s->gb, ff_log2_run[run_index]);
+                        else
+                            run_count = 0;
+                        if (run_index)
+                            run_index--;
+                        run_mode = 2;
+                    }
+                }
+                run_count--;
+                if (run_count < 0) {
+                    run_mode  = 0;
+                    run_count = 0;
+                    diff      = get_vlc_symbol(&s->gb, &p->vlc_state[context],
+                                               bits);
+                    if (diff >= 0)
+                        diff++;
+                } else
+                    diff = 0;
+            } else
+                diff = get_vlc_symbol(&s->gb, &p->vlc_state[context], bits);
+
+            ff_dlog(s->avctx, "count:%d index:%d, mode:%d, x:%d pos:%d\n",
+                    run_count, run_index, run_mode, x, get_bits_count(&s->gb));
+        }
+
+        if (sign)
+            diff = -diff;
+
+        sample[1][x] = av_mod_uintp2(RENAME(predict)(sample[1] + x, sample[0] + x) + diff, bits);
+    }
+    s->run_index = run_index;
+}
+
+static void RENAME(decode_rgb_frame)(FFV1Context *s, uint8_t *src[3], int w, int h, int stride[3])
+{
+    int x, y, p;
+    TYPE *sample[4][2];
+    int lbd    = s->avctx->bits_per_raw_sample <= 8;
+    int bits   = s->avctx->bits_per_raw_sample > 0 ? s->avctx->bits_per_raw_sample : 8;
+    int offset = 1 << bits;
+
+    for (x = 0; x < 4; x++) {
+        sample[x][0] = RENAME(s->sample_buffer) +  x * 2      * (w + 6) + 3;
+        sample[x][1] = RENAME(s->sample_buffer) + (x * 2 + 1) * (w + 6) + 3;
+    }
+
+    s->run_index = 0;
+
+    memset(RENAME(s->sample_buffer), 0, 8 * (w + 6) * sizeof(*RENAME(s->sample_buffer)));
+
+    for (y = 0; y < h; y++) {
+        for (p = 0; p < 3 + s->transparency; p++) {
+            TYPE *temp = sample[p][0]; // FIXME: try a normal buffer
+
+            sample[p][0] = sample[p][1];
+            sample[p][1] = temp;
+
+            sample[p][1][-1]= sample[p][0][0  ];
+            sample[p][0][ w]= sample[p][0][w-1];
+            if (lbd && s->slice_coding_mode == 0)
+                RENAME(decode_line)(s, w, sample[p], (p + 1)/2, 9);
+            else
+                RENAME(decode_line)(s, w, sample[p], (p + 1)/2, bits + (s->slice_coding_mode != 1));
+        }
+        for (x = 0; x < w; x++) {
+            int g = sample[0][1][x];
+            int b = sample[1][1][x];
+            int r = sample[2][1][x];
+            int a = sample[3][1][x];
+
+            if (s->slice_coding_mode != 1) {
+                b -= offset;
+                r -= offset;
+                g -= (b * s->slice_rct_by_coef + r * s->slice_rct_ry_coef) >> 2;
+                b += g;
+                r += g;
+            }
+
+            if (lbd)
+                *((uint32_t*)(src[0] + x*4 + stride[0]*y)) = b + (g<<8) + (r<<16) + (a<<24);
+            else {
+                *((uint16_t*)(src[0] + x*2 + stride[0]*y)) = b;
+                *((uint16_t*)(src[1] + x*2 + stride[1]*y)) = g;
+                *((uint16_t*)(src[2] + x*2 + stride[2]*y)) = r;
+            }
+        }
+    }
+}
index 383956b..552f653 100644 (file)
@@ -268,107 +268,12 @@ static inline void put_vlc_symbol(PutBitContext *pb, VlcState *const state,
     update_vlc_state(state, v);
 }
 
-static av_always_inline int encode_line(FFV1Context *s, int w,
-                                        int16_t *sample[3],
-                                        int plane_index, int bits)
-{
-    PlaneContext *const p = &s->plane[plane_index];
-    RangeCoder *const c   = &s->c;
-    int x;
-    int run_index = s->run_index;
-    int run_count = 0;
-    int run_mode  = 0;
-
-    if (s->ac != AC_GOLOMB_RICE) {
-        if (c->bytestream_end - c->bytestream < w * 35) {
-            av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
-            return AVERROR_INVALIDDATA;
-        }
-    } else {
-        if (s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb) >> 3) < w * 4) {
-            av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
-            return AVERROR_INVALIDDATA;
-        }
-    }
-
-    if (s->slice_coding_mode == 1) {
-        for (x = 0; x < w; x++) {
-            int i;
-            int v = sample[0][x];
-            for (i = bits-1; i>=0; i--) {
-                uint8_t state = 128;
-                put_rac(c, &state, (v>>i) & 1);
-            }
-        }
-        return 0;
-    }
-
-    for (x = 0; x < w; x++) {
-        int diff, context;
-
-        context = get_context(p, sample[0] + x, sample[1] + x, sample[2] + x);
-        diff    = sample[0][x] - predict(sample[0] + x, sample[1] + x);
-
-        if (context < 0) {
-            context = -context;
-            diff    = -diff;
-        }
-
-        diff = fold(diff, bits);
-
-        if (s->ac != AC_GOLOMB_RICE) {
-            if (s->flags & AV_CODEC_FLAG_PASS1) {
-                put_symbol_inline(c, p->state[context], diff, 1, s->rc_stat,
-                                  s->rc_stat2[p->quant_table_index][context]);
-            } else {
-                put_symbol_inline(c, p->state[context], diff, 1, NULL, NULL);
-            }
-        } else {
-            if (context == 0)
-                run_mode = 1;
-
-            if (run_mode) {
-                if (diff) {
-                    while (run_count >= 1 << ff_log2_run[run_index]) {
-                        run_count -= 1 << ff_log2_run[run_index];
-                        run_index++;
-                        put_bits(&s->pb, 1, 1);
-                    }
-
-                    put_bits(&s->pb, 1 + ff_log2_run[run_index], run_count);
-                    if (run_index)
-                        run_index--;
-                    run_count = 0;
-                    run_mode  = 0;
-                    if (diff > 0)
-                        diff--;
-                } else {
-                    run_count++;
-                }
-            }
-
-            ff_dlog(s->avctx, "count:%d index:%d, mode:%d, x:%d pos:%d\n",
-                    run_count, run_index, run_mode, x,
-                    (int)put_bits_count(&s->pb));
-
-            if (run_mode == 0)
-                put_vlc_symbol(&s->pb, &p->vlc_state[context], diff, bits);
-        }
-    }
-    if (run_mode) {
-        while (run_count >= 1 << ff_log2_run[run_index]) {
-            run_count -= 1 << ff_log2_run[run_index];
-            run_index++;
-            put_bits(&s->pb, 1, 1);
-        }
+#define TYPE int16_t
+#define RENAME(name) name
+#include "ffv1enc_template.c"
+#undef TYPE
+#undef RENAME
 
-        if (run_count)
-            put_bits(&s->pb, 1, 1);
-    }
-    s->run_index = run_index;
-
-    return 0;
-}
 
 static int encode_plane(FFV1Context *s, uint8_t *src, int w, int h,
                          int stride, int plane_index, int pixel_stride)
@@ -410,68 +315,6 @@ static int encode_plane(FFV1Context *s, uint8_t *src, int w, int h,
     return 0;
 }
 
-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->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;
-    int offset = 1 << bits;
-
-    s->run_index = 0;
-
-    memset(s->sample_buffer, 0, ring_size * MAX_PLANES *
-                                (w + 6) * sizeof(*s->sample_buffer));
-
-    for (y = 0; y < h; y++) {
-        for (i = 0; i < ring_size; i++)
-            for (p = 0; p < MAX_PLANES; p++)
-                sample[p][i]= s->sample_buffer + p*ring_size*(w+6) + ((h+i-y)%ring_size)*(w+6) + 3;
-
-        for (x = 0; x < w; x++) {
-            int b, g, r, av_uninit(a);
-            if (lbd) {
-                unsigned v = *((const uint32_t*)(src[0] + x*4 + stride[0]*y));
-                b =  v        & 0xFF;
-                g = (v >>  8) & 0xFF;
-                r = (v >> 16) & 0xFF;
-                a =  v >> 24;
-            } else {
-                b = *((const uint16_t *)(src[0] + x*2 + stride[0]*y));
-                g = *((const uint16_t *)(src[1] + x*2 + stride[1]*y));
-                r = *((const uint16_t *)(src[2] + x*2 + stride[2]*y));
-            }
-
-            if (s->slice_coding_mode != 1) {
-                b -= g;
-                r -= g;
-                g += (b * s->slice_rct_by_coef + r * s->slice_rct_ry_coef) >> 2;
-                b += offset;
-                r += offset;
-            }
-
-            sample[0][0][x] = g;
-            sample[1][0][x] = b;
-            sample[2][0][x] = r;
-            sample[3][0][x] = a;
-        }
-        for (p = 0; p < 3 + s->transparency; p++) {
-            int ret;
-            sample[p][0][-1] = sample[p][1][0  ];
-            sample[p][1][ w] = sample[p][1][w-1];
-            if (lbd && s->slice_coding_mode == 0)
-                ret = encode_line(s, w, sample[p], (p + 1) / 2, 9);
-            else
-                ret = encode_line(s, w, sample[p], (p + 1) / 2, bits + (s->slice_coding_mode != 1));
-            if (ret < 0)
-                return ret;
-        }
-    }
-    return 0;
-}
-
 static void write_quant_table(RangeCoder *c, int16_t *quant_table)
 {
     int last = 0;
diff --git a/libavcodec/ffv1enc_template.c b/libavcodec/ffv1enc_template.c
new file mode 100644 (file)
index 0000000..f6c44a3
--- /dev/null
@@ -0,0 +1,186 @@
+/*
+ * FFV1 encoder template
+ *
+ * Copyright (c) 2003-2016 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+static av_always_inline int RENAME(encode_line)(FFV1Context *s, int w,
+                                                TYPE *sample[3],
+                                                int plane_index, int bits)
+{
+    PlaneContext *const p = &s->plane[plane_index];
+    RangeCoder *const c   = &s->c;
+    int x;
+    int run_index = s->run_index;
+    int run_count = 0;
+    int run_mode  = 0;
+
+    if (s->ac != AC_GOLOMB_RICE) {
+        if (c->bytestream_end - c->bytestream < w * 35) {
+            av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
+            return AVERROR_INVALIDDATA;
+        }
+    } else {
+        if (s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb) >> 3) < w * 4) {
+            av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
+            return AVERROR_INVALIDDATA;
+        }
+    }
+
+    if (s->slice_coding_mode == 1) {
+        for (x = 0; x < w; x++) {
+            int i;
+            int v = sample[0][x];
+            for (i = bits-1; i>=0; i--) {
+                uint8_t state = 128;
+                put_rac(c, &state, (v>>i) & 1);
+            }
+        }
+        return 0;
+    }
+
+    for (x = 0; x < w; x++) {
+        int diff, context;
+
+        context = RENAME(get_context)(p, sample[0] + x, sample[1] + x, sample[2] + x);
+        diff    = sample[0][x] - RENAME(predict)(sample[0] + x, sample[1] + x);
+
+        if (context < 0) {
+            context = -context;
+            diff    = -diff;
+        }
+
+        diff = fold(diff, bits);
+
+        if (s->ac != AC_GOLOMB_RICE) {
+            if (s->flags & AV_CODEC_FLAG_PASS1) {
+                put_symbol_inline(c, p->state[context], diff, 1, s->rc_stat,
+                                  s->rc_stat2[p->quant_table_index][context]);
+            } else {
+                put_symbol_inline(c, p->state[context], diff, 1, NULL, NULL);
+            }
+        } else {
+            if (context == 0)
+                run_mode = 1;
+
+            if (run_mode) {
+                if (diff) {
+                    while (run_count >= 1 << ff_log2_run[run_index]) {
+                        run_count -= 1 << ff_log2_run[run_index];
+                        run_index++;
+                        put_bits(&s->pb, 1, 1);
+                    }
+
+                    put_bits(&s->pb, 1 + ff_log2_run[run_index], run_count);
+                    if (run_index)
+                        run_index--;
+                    run_count = 0;
+                    run_mode  = 0;
+                    if (diff > 0)
+                        diff--;
+                } else {
+                    run_count++;
+                }
+            }
+
+            ff_dlog(s->avctx, "count:%d index:%d, mode:%d, x:%d pos:%d\n",
+                    run_count, run_index, run_mode, x,
+                    (int)put_bits_count(&s->pb));
+
+            if (run_mode == 0)
+                put_vlc_symbol(&s->pb, &p->vlc_state[context], diff, bits);
+        }
+    }
+    if (run_mode) {
+        while (run_count >= 1 << ff_log2_run[run_index]) {
+            run_count -= 1 << ff_log2_run[run_index];
+            run_index++;
+            put_bits(&s->pb, 1, 1);
+        }
+
+        if (run_count)
+            put_bits(&s->pb, 1, 1);
+    }
+    s->run_index = run_index;
+
+    return 0;
+}
+
+static int RENAME(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->context_model ? 3 : 2;
+    TYPE *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;
+    int offset = 1 << bits;
+
+    s->run_index = 0;
+
+    memset(RENAME(s->sample_buffer), 0, ring_size * MAX_PLANES *
+           (w + 6) * sizeof(*RENAME(s->sample_buffer)));
+
+    for (y = 0; y < h; y++) {
+        for (i = 0; i < ring_size; i++)
+            for (p = 0; p < MAX_PLANES; p++)
+                sample[p][i]= RENAME(s->sample_buffer) + p*ring_size*(w+6) + ((h+i-y)%ring_size)*(w+6) + 3;
+
+        for (x = 0; x < w; x++) {
+            int b, g, r, av_uninit(a);
+            if (lbd) {
+                unsigned v = *((const uint32_t*)(src[0] + x*4 + stride[0]*y));
+                b =  v        & 0xFF;
+                g = (v >>  8) & 0xFF;
+                r = (v >> 16) & 0xFF;
+                a =  v >> 24;
+            } else {
+                b = *((const uint16_t *)(src[0] + x*2 + stride[0]*y));
+                g = *((const uint16_t *)(src[1] + x*2 + stride[1]*y));
+                r = *((const uint16_t *)(src[2] + x*2 + stride[2]*y));
+            }
+
+            if (s->slice_coding_mode != 1) {
+                b -= g;
+                r -= g;
+                g += (b * s->slice_rct_by_coef + r * s->slice_rct_ry_coef) >> 2;
+                b += offset;
+                r += offset;
+            }
+
+            sample[0][0][x] = g;
+            sample[1][0][x] = b;
+            sample[2][0][x] = r;
+            sample[3][0][x] = a;
+        }
+        for (p = 0; p < 3 + s->transparency; p++) {
+            int ret;
+            sample[p][0][-1] = sample[p][1][0  ];
+            sample[p][1][ w] = sample[p][1][w-1];
+            if (lbd && s->slice_coding_mode == 0)
+                ret = RENAME(encode_line)(s, w, sample[p], (p + 1) / 2, 9);
+            else
+                ret = RENAME(encode_line)(s, w, sample[p], (p + 1) / 2, bits + (s->slice_coding_mode != 1));
+            if (ret < 0)
+                return ret;
+        }
+    }
+    return 0;
+}
+