making act segmenter

1 files changed, 635 insertions, 0 deletions

diff --git a/ffmpeg/libavcodec/svq1enc.c b/ffmpeg/libavcodec/svq1enc.c
new file mode 100644
index 0000000..cf9157f
--- /dev/null
+++ b/ffmpeg/libavcodec/svq1enc.c
@@ -0,0 +1,635 @@
+/*
+ * SVQ1 Encoder
+ * Copyright (C) 2004 Mike Melanson <melanson@pcisys.net>
+ *
+ * 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
+ */
+
+/**
+ * @file
+ * Sorenson Vector Quantizer #1 (SVQ1) video codec.
+ * For more information of the SVQ1 algorithm, visit:
+ *   http://www.pcisys.net/~melanson/codecs/
+ */
+
+#include "avcodec.h"
+#include "dsputil.h"
+#include "hpeldsp.h"
+#include "mpegvideo.h"
+#include "h263.h"
+#include "internal.h"
+#include "libavutil/avassert.h"
+#include "svq1.h"
+#include "svq1enc_cb.h"
+
+
+typedef struct SVQ1Context {
+    /* FIXME: Needed for motion estimation, should not be used for anything
+     * else, the idea is to make the motion estimation eventually independent
+     * of MpegEncContext, so this will be removed then. */
+    MpegEncContext m;
+    AVCodecContext *avctx;
+    DSPContext dsp;
+    HpelDSPContext hdsp;
+    AVFrame picture;
+    AVFrame current_picture;
+    AVFrame last_picture;
+    PutBitContext pb;
+    GetBitContext gb;
+
+    /* why ooh why this sick breadth first order,
+     * everything is slower and more complex */
+    PutBitContext reorder_pb[6];
+
+    int frame_width;
+    int frame_height;
+
+    /* Y plane block dimensions */
+    int y_block_width;
+    int y_block_height;
+
+    /* U & V plane (C planes) block dimensions */
+    int c_block_width;
+    int c_block_height;
+
+    uint16_t *mb_type;
+    uint32_t *dummy;
+    int16_t (*motion_val8[3])[2];
+    int16_t (*motion_val16[3])[2];
+
+    int64_t rd_total;
+
+    uint8_t *scratchbuf;
+} SVQ1Context;
+
+static void svq1_write_header(SVQ1Context *s, int frame_type)
+{
+    int i;
+
+    /* frame code */
+    put_bits(&s->pb, 22, 0x20);
+
+    /* temporal reference (sure hope this is a "don't care") */
+    put_bits(&s->pb, 8, 0x00);
+
+    /* frame type */
+    put_bits(&s->pb, 2, frame_type - 1);
+
+    if (frame_type == AV_PICTURE_TYPE_I) {
+        /* no checksum since frame code is 0x20 */
+        /* no embedded string either */
+        /* output 5 unknown bits (2 + 2 + 1) */
+        put_bits(&s->pb, 5, 2); /* 2 needed by quicktime decoder */
+
+        i = ff_match_2uint16((void*)ff_svq1_frame_size_table,
+                             FF_ARRAY_ELEMS(ff_svq1_frame_size_table),
+                             s->frame_width, s->frame_height);
+        put_bits(&s->pb, 3, i);
+
+        if (i == 7) {
+            put_bits(&s->pb, 12, s->frame_width);
+            put_bits(&s->pb, 12, s->frame_height);
+        }
+    }
+
+    /* no checksum or extra data (next 2 bits get 0) */
+    put_bits(&s->pb, 2, 0);
+}
+
+#define QUALITY_THRESHOLD    100
+#define THRESHOLD_MULTIPLIER 0.6
+
+static int encode_block(SVQ1Context *s, uint8_t *src, uint8_t *ref,
+                        uint8_t *decoded, int stride, int level,
+                        int threshold, int lambda, int intra)
+{
+    int count, y, x, i, j, split, best_mean, best_score, best_count;
+    int best_vector[6];
+    int block_sum[7] = { 0, 0, 0, 0, 0, 0 };
+    int w            = 2 << (level + 2 >> 1);
+    int h            = 2 << (level + 1 >> 1);
+    int size         = w * h;
+    int16_t block[7][256];
+    const int8_t *codebook_sum, *codebook;
+    const uint16_t(*mean_vlc)[2];
+    const uint8_t(*multistage_vlc)[2];
+
+    best_score = 0;
+    // FIXME: Optimize, this does not need to be done multiple times.
+    if (intra) {
+        codebook_sum   = svq1_intra_codebook_sum[level];
+        codebook       = ff_svq1_intra_codebooks[level];
+        mean_vlc       = ff_svq1_intra_mean_vlc;
+        multistage_vlc = ff_svq1_intra_multistage_vlc[level];
+        for (y = 0; y < h; y++) {
+            for (x = 0; x < w; x++) {
+                int v = src[x + y * stride];
+                block[0][x + w * y] = v;
+                best_score         += v * v;
+                block_sum[0]       += v;
+            }
+        }
+    } else {
+        codebook_sum   = svq1_inter_codebook_sum[level];
+        codebook       = ff_svq1_inter_codebooks[level];
+        mean_vlc       = ff_svq1_inter_mean_vlc + 256;
+        multistage_vlc = ff_svq1_inter_multistage_vlc[level];
+        for (y = 0; y < h; y++) {
+            for (x = 0; x < w; x++) {
+                int v = src[x + y * stride] - ref[x + y * stride];
+                block[0][x + w * y] = v;
+                best_score         += v * v;
+                block_sum[0]       += v;
+            }
+        }
+    }
+
+    best_count  = 0;
+    best_score -= (int)((unsigned)block_sum[0] * block_sum[0] >> (level + 3));
+    best_mean   = block_sum[0] + (size >> 1) >> (level + 3);
+
+    if (level < 4) {
+        for (count = 1; count < 7; count++) {
+            int best_vector_score = INT_MAX;
+            int best_vector_sum   = -999, best_vector_mean = -999;
+            const int stage       = count - 1;
+            const int8_t *vector;
+
+            for (i = 0; i < 16; i++) {
+                int sum = codebook_sum[stage * 16 + i];
+                int sqr, diff, score;
+
+                vector = codebook + stage * size * 16 + i * size;
+                sqr    = s->dsp.ssd_int8_vs_int16(vector, block[stage], size);
+                diff   = block_sum[stage] - sum;
+                score  = sqr - (diff * (int64_t)diff >> (level + 3)); // FIXME: 64bit slooow
+                if (score < best_vector_score) {
+                    int mean = diff + (size >> 1) >> (level + 3);
+                    av_assert2(mean > -300 && mean < 300);
+                    mean               = av_clip(mean, intra ? 0 : -256, 255);
+                    best_vector_score  = score;
+                    best_vector[stage] = i;
+                    best_vector_sum    = sum;
+                    best_vector_mean   = mean;
+                }
+            }
+            av_assert0(best_vector_mean != -999);
+            vector = codebook + stage * size * 16 + best_vector[stage] * size;
+            for (j = 0; j < size; j++)
+                block[stage + 1][j] = block[stage][j] - vector[j];
+            block_sum[stage + 1] = block_sum[stage] - best_vector_sum;
+            best_vector_score   += lambda *
+                                   (+1 + 4 * count +
+                                    multistage_vlc[1 + count][1]
+                                    + mean_vlc[best_vector_mean][1]);
+
+            if (best_vector_score < best_score) {
+                best_score = best_vector_score;
+                best_count = count;
+                best_mean  = best_vector_mean;
+            }
+        }
+    }
+
+    split = 0;
+    if (best_score > threshold && level) {
+        int score  = 0;
+        int offset = level & 1 ? stride * h / 2 : w / 2;
+        PutBitContext backup[6];
+
+        for (i = level - 1; i >= 0; i--)
+            backup[i] = s->reorder_pb[i];
+        score += encode_block(s, src, ref, decoded, stride, level - 1,
+                              threshold >> 1, lambda, intra);
+        score += encode_block(s, src + offset, ref + offset, decoded + offset,
+                              stride, level - 1, threshold >> 1, lambda, intra);
+        score += lambda;
+
+        if (score < best_score) {
+            best_score = score;
+            split      = 1;
+        } else {
+            for (i = level - 1; i >= 0; i--)
+                s->reorder_pb[i] = backup[i];
+        }
+    }
+    if (level > 0)
+        put_bits(&s->reorder_pb[level], 1, split);
+
+    if (!split) {
+        av_assert1(best_mean >= 0 && best_mean < 256 || !intra);
+        av_assert1(best_mean >= -256 && best_mean < 256);
+        av_assert1(best_count >= 0 && best_count < 7);
+        av_assert1(level < 4 || best_count == 0);
+
+        /* output the encoding */
+        put_bits(&s->reorder_pb[level],
+                 multistage_vlc[1 + best_count][1],
+                 multistage_vlc[1 + best_count][0]);
+        put_bits(&s->reorder_pb[level], mean_vlc[best_mean][1],
+                 mean_vlc[best_mean][0]);
+
+        for (i = 0; i < best_count; i++) {
+            av_assert2(best_vector[i] >= 0 && best_vector[i] < 16);
+            put_bits(&s->reorder_pb[level], 4, best_vector[i]);
+        }
+
+        for (y = 0; y < h; y++)
+            for (x = 0; x < w; x++)
+                decoded[x + y * stride] = src[x + y * stride] -
+                                          block[best_count][x + w * y] +
+                                          best_mean;
+    }
+
+    return best_score;
+}
+
+static int svq1_encode_plane(SVQ1Context *s, int plane,
+                             unsigned char *src_plane,
+                             unsigned char *ref_plane,
+                             unsigned char *decoded_plane,
+                             int width, int height, int src_stride, int stride)
+{
+    int x, y;
+    int i;
+    int block_width, block_height;
+    int level;
+    int threshold[6];
+    uint8_t *src     = s->scratchbuf + stride * 16;
+    const int lambda = (s->picture.quality * s->picture.quality) >>
+                       (2 * FF_LAMBDA_SHIFT);
+
+    /* figure out the acceptable level thresholds in advance */
+    threshold[5] = QUALITY_THRESHOLD;
+    for (level = 4; level >= 0; level--)
+        threshold[level] = threshold[level + 1] * THRESHOLD_MULTIPLIER;
+
+    block_width  = (width  + 15) / 16;
+    block_height = (height + 15) / 16;
+
+    if (s->picture.pict_type == AV_PICTURE_TYPE_P) {
+        s->m.avctx                         = s->avctx;
+        s->m.current_picture_ptr           = &s->m.current_picture;
+        s->m.last_picture_ptr              = &s->m.last_picture;
+        s->m.last_picture.f.data[0]        = ref_plane;
+        s->m.linesize                      =
+        s->m.last_picture.f.linesize[0]    =
+        s->m.new_picture.f.linesize[0]     =
+        s->m.current_picture.f.linesize[0] = stride;
+        s->m.width                         = width;
+        s->m.height                        = height;
+        s->m.mb_width                      = block_width;
+        s->m.mb_height                     = block_height;
+        s->m.mb_stride                     = s->m.mb_width + 1;
+        s->m.b8_stride                     = 2 * s->m.mb_width + 1;
+        s->m.f_code                        = 1;
+        s->m.pict_type                     = s->picture.pict_type;
+        s->m.me_method                     = s->avctx->me_method;
+        s->m.me.scene_change_score         = 0;
+        s->m.flags                         = s->avctx->flags;
+        // s->m.out_format                    = FMT_H263;
+        // s->m.unrestricted_mv               = 1;
+        s->m.lambda                        = s->picture.quality;
+        s->m.qscale                        = s->m.lambda * 139 +
+                                             FF_LAMBDA_SCALE * 64 >>
+                                             FF_LAMBDA_SHIFT + 7;
+        s->m.lambda2                       = s->m.lambda * s->m.lambda +
+                                             FF_LAMBDA_SCALE / 2 >>
+                                             FF_LAMBDA_SHIFT;
+
+        if (!s->motion_val8[plane]) {
+            s->motion_val8[plane]  = av_mallocz((s->m.b8_stride *
+                                                 block_height * 2 + 2) *
+                                                2 * sizeof(int16_t));
+            s->motion_val16[plane] = av_mallocz((s->m.mb_stride *
+                                                 (block_height + 2) + 1) *
+                                                2 * sizeof(int16_t));
+        }
+
+        s->m.mb_type = s->mb_type;
+
+        // dummies, to avoid segfaults
+        s->m.current_picture.mb_mean   = (uint8_t *)s->dummy;
+        s->m.current_picture.mb_var    = (uint16_t *)s->dummy;
+        s->m.current_picture.mc_mb_var = (uint16_t *)s->dummy;
+        s->m.current_picture.mb_type = s->dummy;
+
+        s->m.current_picture.motion_val[0]   = s->motion_val8[plane] + 2;
+        s->m.p_mv_table                      = s->motion_val16[plane] +
+                                               s->m.mb_stride + 1;
+        s->m.dsp                             = s->dsp; // move
+        ff_init_me(&s->m);
+
+        s->m.me.dia_size      = s->avctx->dia_size;
+        s->m.first_slice_line = 1;
+        for (y = 0; y < block_height; y++) {
+            s->m.new_picture.f.data[0] = src - y * 16 * stride; // ugly
+            s->m.mb_y                  = y;
+
+            for (i = 0; i < 16 && i + 16 * y < height; i++) {
+                memcpy(&src[i * stride], &src_plane[(i + 16 * y) * src_stride],
+                       width);
+                for (x = width; x < 16 * block_width; x++)
+                    src[i * stride + x] = src[i * stride + x - 1];
+            }
+            for (; i < 16 && i + 16 * y < 16 * block_height; i++)
+                memcpy(&src[i * stride], &src[(i - 1) * stride],
+                       16 * block_width);
+
+            for (x = 0; x < block_width; x++) {
+                s->m.mb_x = x;
+                ff_init_block_index(&s->m);
+                ff_update_block_index(&s->m);
+
+                ff_estimate_p_frame_motion(&s->m, x, y);
+            }
+            s->m.first_slice_line = 0;
+        }
+
+        ff_fix_long_p_mvs(&s->m);
+        ff_fix_long_mvs(&s->m, NULL, 0, s->m.p_mv_table, s->m.f_code,
+                        CANDIDATE_MB_TYPE_INTER, 0);
+    }
+
+    s->m.first_slice_line = 1;
+    for (y = 0; y < block_height; y++) {
+        for (i = 0; i < 16 && i + 16 * y < height; i++) {
+            memcpy(&src[i * stride], &src_plane[(i + 16 * y) * src_stride],
+                   width);
+            for (x = width; x < 16 * block_width; x++)
+                src[i * stride + x] = src[i * stride + x - 1];
+        }
+        for (; i < 16 && i + 16 * y < 16 * block_height; i++)
+            memcpy(&src[i * stride], &src[(i - 1) * stride], 16 * block_width);
+
+        s->m.mb_y = y;
+        for (x = 0; x < block_width; x++) {
+            uint8_t reorder_buffer[3][6][7 * 32];
+            int count[3][6];
+            int offset       = y * 16 * stride + x * 16;
+            uint8_t *decoded = decoded_plane + offset;
+            uint8_t *ref     = ref_plane + offset;
+            int score[4]     = { 0, 0, 0, 0 }, best;
+            uint8_t *temp    = s->scratchbuf;
+
+            if (s->pb.buf_end - s->pb.buf -
+                (put_bits_count(&s->pb) >> 3) < 3000) { // FIXME: check size
+                av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
+                return -1;
+            }
+
+            s->m.mb_x = x;
+            ff_init_block_index(&s->m);
+            ff_update_block_index(&s->m);
+
+            if (s->picture.pict_type == AV_PICTURE_TYPE_I ||
+                (s->m.mb_type[x + y * s->m.mb_stride] &
+                 CANDIDATE_MB_TYPE_INTRA)) {
+                for (i = 0; i < 6; i++)
+                    init_put_bits(&s->reorder_pb[i], reorder_buffer[0][i],
+                                  7 * 32);
+                if (s->picture.pict_type == AV_PICTURE_TYPE_P) {
+                    const uint8_t *vlc = ff_svq1_block_type_vlc[SVQ1_BLOCK_INTRA];
+                    put_bits(&s->reorder_pb[5], vlc[1], vlc[0]);
+                    score[0] = vlc[1] * lambda;
+                }
+                score[0] += encode_block(s, src + 16 * x, NULL, temp, stride,
+                                         5, 64, lambda, 1);
+                for (i = 0; i < 6; i++) {
+                    count[0][i] = put_bits_count(&s->reorder_pb[i]);
+                    flush_put_bits(&s->reorder_pb[i]);
+                }
+            } else
+                score[0] = INT_MAX;
+
+            best = 0;
+
+            if (s->picture.pict_type == AV_PICTURE_TYPE_P) {
+                const uint8_t *vlc = ff_svq1_block_type_vlc[SVQ1_BLOCK_INTER];
+                int mx, my, pred_x, pred_y, dxy;
+                int16_t *motion_ptr;
+
+                motion_ptr = ff_h263_pred_motion(&s->m, 0, 0, &pred_x, &pred_y);
+                if (s->m.mb_type[x + y * s->m.mb_stride] &
+                    CANDIDATE_MB_TYPE_INTER) {
+                    for (i = 0; i < 6; i++)
+                        init_put_bits(&s->reorder_pb[i], reorder_buffer[1][i],
+                                      7 * 32);
+
+                    put_bits(&s->reorder_pb[5], vlc[1], vlc[0]);
+
+                    s->m.pb = s->reorder_pb[5];
+                    mx      = motion_ptr[0];
+                    my      = motion_ptr[1];
+                    av_assert1(mx     >= -32 && mx     <= 31);
+                    av_assert1(my     >= -32 && my     <= 31);
+                    av_assert1(pred_x >= -32 && pred_x <= 31);
+                    av_assert1(pred_y >= -32 && pred_y <= 31);
+                    ff_h263_encode_motion(&s->m, mx - pred_x, 1);
+                    ff_h263_encode_motion(&s->m, my - pred_y, 1);
+                    s->reorder_pb[5] = s->m.pb;
+                    score[1]        += lambda * put_bits_count(&s->reorder_pb[5]);
+
+                    dxy = (mx & 1) + 2 * (my & 1);
+
+                    s->hdsp.put_pixels_tab[0][dxy](temp + 16,
+                                                  ref + (mx >> 1) +
+                                                  stride * (my >> 1),
+                                                  stride, 16);
+
+                    score[1] += encode_block(s, src + 16 * x, temp + 16,
+                                             decoded, stride, 5, 64, lambda, 0);
+                    best      = score[1] <= score[0];
+
+                    vlc       = ff_svq1_block_type_vlc[SVQ1_BLOCK_SKIP];
+                    score[2]  = s->dsp.sse[0](NULL, src + 16 * x, ref,
+                                              stride, 16);
+                    score[2] += vlc[1] * lambda;
+                    if (score[2] < score[best] && mx == 0 && my == 0) {
+                        best = 2;
+                        s->hdsp.put_pixels_tab[0][0](decoded, ref, stride, 16);
+                        for (i = 0; i < 6; i++)
+                            count[2][i] = 0;
+                        put_bits(&s->pb, vlc[1], vlc[0]);
+                    }
+                }
+
+                if (best == 1) {
+                    for (i = 0; i < 6; i++) {
+                        count[1][i] = put_bits_count(&s->reorder_pb[i]);
+                        flush_put_bits(&s->reorder_pb[i]);
+                    }
+                } else {
+                    motion_ptr[0]                      =
+                    motion_ptr[1]                      =
+                    motion_ptr[2]                      =
+                    motion_ptr[3]                      =
+                    motion_ptr[0 + 2 * s->m.b8_stride] =
+                    motion_ptr[1 + 2 * s->m.b8_stride] =
+                    motion_ptr[2 + 2 * s->m.b8_stride] =
+                    motion_ptr[3 + 2 * s->m.b8_stride] = 0;
+                }
+            }
+
+            s->rd_total += score[best];
+
+            for (i = 5; i >= 0; i--)
+                avpriv_copy_bits(&s->pb, reorder_buffer[best][i],
+                                 count[best][i]);
+            if (best == 0)
+                s->hdsp.put_pixels_tab[0][0](decoded, temp, stride, 16);
+        }
+        s->m.first_slice_line = 0;
+    }
+    return 0;
+}
+
+static av_cold int svq1_encode_init(AVCodecContext *avctx)
+{
+    SVQ1Context *const s = avctx->priv_data;
+
+    ff_dsputil_init(&s->dsp, avctx);
+    ff_hpeldsp_init(&s->hdsp, avctx->flags);
+    avctx->coded_frame = &s->picture;
+
+    s->frame_width  = avctx->width;
+    s->frame_height = avctx->height;
+
+    s->y_block_width  = (s->frame_width  + 15) / 16;
+    s->y_block_height = (s->frame_height + 15) / 16;
+
+    s->c_block_width  = (s->frame_width  / 4 + 15) / 16;
+    s->c_block_height = (s->frame_height / 4 + 15) / 16;
+
+    s->avctx               = avctx;
+    s->m.avctx             = avctx;
+    s->m.picture_structure = PICT_FRAME;
+    s->m.me.temp           =
+    s->m.me.scratchpad     = av_mallocz((avctx->width + 64) *
+                                        2 * 16 * 2 * sizeof(uint8_t));
+    s->m.me.map            = av_mallocz(ME_MAP_SIZE * sizeof(uint32_t));
+    s->m.me.score_map      = av_mallocz(ME_MAP_SIZE * sizeof(uint32_t));
+    s->mb_type             = av_mallocz((s->y_block_width + 1) *
+                                        s->y_block_height * sizeof(int16_t));
+    s->dummy               = av_mallocz((s->y_block_width + 1) *
+                                        s->y_block_height * sizeof(int32_t));
+    ff_h263_encode_init(&s->m); // mv_penalty
+
+    return 0;
+}
+
+static int svq1_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
+                             const AVFrame *pict, int *got_packet)
+{
+    SVQ1Context *const s = avctx->priv_data;
+    AVFrame *const p     = &s->picture;
+    AVFrame temp;
+    int i, ret;
+
+    if ((ret = ff_alloc_packet2(avctx, pkt, s->y_block_width * s->y_block_height *
+                             MAX_MB_BYTES*3 + FF_MIN_BUFFER_SIZE)) < 0)
+        return ret;
+
+    if (avctx->pix_fmt != AV_PIX_FMT_YUV410P) {
+        av_log(avctx, AV_LOG_ERROR, "unsupported pixel format\n");
+        return -1;
+    }
+
+    if (!s->current_picture.data[0]) {
+        if ((ret = ff_get_buffer(avctx, &s->current_picture, 0))< 0 ||
+            (ret = ff_get_buffer(avctx, &s->last_picture, 0))   < 0) {
+            return ret;
+        }
+        s->scratchbuf = av_malloc(s->current_picture.linesize[0] * 16 * 2);
+    }
+
+    temp               = s->current_picture;
+    s->current_picture = s->last_picture;
+    s->last_picture    = temp;
+
+    init_put_bits(&s->pb, pkt->data, pkt->size);
+
+    *p           = *pict;
+    p->pict_type = avctx->gop_size && avctx->frame_number % avctx->gop_size ?
+                   AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;
+    p->key_frame = p->pict_type == AV_PICTURE_TYPE_I;
+
+    svq1_write_header(s, p->pict_type);
+    for (i = 0; i < 3; i++)
+        if (svq1_encode_plane(s, i,
+                              s->picture.data[i],
+                              s->last_picture.data[i],
+                              s->current_picture.data[i],
+                              s->frame_width  / (i ? 4 : 1),
+                              s->frame_height / (i ? 4 : 1),
+                              s->picture.linesize[i],
+                              s->current_picture.linesize[i]) < 0)
+            return -1;
+
+    // avpriv_align_put_bits(&s->pb);
+    while (put_bits_count(&s->pb) & 31)
+        put_bits(&s->pb, 1, 0);
+
+    flush_put_bits(&s->pb);
+
+    pkt->size = put_bits_count(&s->pb) / 8;
+    if (p->pict_type == AV_PICTURE_TYPE_I)
+        pkt->flags |= AV_PKT_FLAG_KEY;
+    *got_packet = 1;
+
+    return 0;
+}
+
+static av_cold int svq1_encode_end(AVCodecContext *avctx)
+{
+    SVQ1Context *const s = avctx->priv_data;
+    int i;
+
+    av_log(avctx, AV_LOG_DEBUG, "RD: %f\n",
+           s->rd_total / (double)(avctx->width * avctx->height *
+                                  avctx->frame_number));
+
+    av_freep(&s->m.me.scratchpad);
+    av_freep(&s->m.me.map);
+    av_freep(&s->m.me.score_map);
+    av_freep(&s->mb_type);
+    av_freep(&s->dummy);
+    av_freep(&s->scratchbuf);
+
+    for (i = 0; i < 3; i++) {
+        av_freep(&s->motion_val8[i]);
+        av_freep(&s->motion_val16[i]);
+    }
+
+    av_frame_unref(&s->current_picture);
+    av_frame_unref(&s->last_picture);
+
+    return 0;
+}
+
+AVCodec ff_svq1_encoder = {
+    .name           = "svq1",
+    .type           = AVMEDIA_TYPE_VIDEO,
+    .id             = AV_CODEC_ID_SVQ1,
+    .priv_data_size = sizeof(SVQ1Context),
+    .init           = svq1_encode_init,
+    .encode2        = svq1_encode_frame,
+    .close          = svq1_encode_end,
+    .pix_fmts       = (const enum AVPixelFormat[]) { AV_PIX_FMT_YUV410P,
+                                                     AV_PIX_FMT_NONE },
+    .long_name      = NULL_IF_CONFIG_SMALL("Sorenson Vector Quantizer 1 / Sorenson Video 1 / SVQ1"),
+};