avcodec: add Apple Pixlet decoder

Signed-off-by: Paul B Mahol <onemda@gmail.com>

1 files changed, 672 insertions, 0 deletions

diff --git a/libavcodec/pixlet.c b/libavcodec/pixlet.c
new file mode 100644
index 0000000000..c5d37bb46b
--- /dev/null
+++ b/libavcodec/pixlet.c
@@ -0,0 +1,672 @@
+/*
+ * Apple Pixlet decoder
+ * Copyright (c) 2016 Paul B Mahol
+ *
+ * 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
+ */
+
+#include <stdint.h>
+
+#include "libavutil/imgutils.h"
+#include "libavutil/intmath.h"
+#include "libavutil/opt.h"
+
+#include "avcodec.h"
+#include "bytestream.h"
+#include "get_bits.h"
+#include "unary.h"
+#include "internal.h"
+#include "thread.h"
+
+#define NB_LEVELS 4
+
+#define H 0
+#define V 1
+
+typedef struct SubBand {
+    unsigned width, height;
+    unsigned size;
+    unsigned x, y;
+} SubBand;
+
+typedef struct PixletContext {
+    AVClass *class;
+
+    GetByteContext gb;
+    GetBitContext gbit;
+
+    int levels;
+    int depth;
+    int h, w;
+
+    int16_t *filter[2];
+    int16_t *prediction;
+    float scaling[4][2][NB_LEVELS];
+    SubBand band[4][NB_LEVELS * 3 + 1];
+} PixletContext;
+
+static int init_decoder(AVCodecContext *avctx)
+{
+    PixletContext *ctx = avctx->priv_data;
+    int i, plane;
+
+    ctx->filter[0]  = av_malloc_array(ctx->h, sizeof(int16_t));
+    ctx->filter[1]  = av_malloc_array(FFMAX(ctx->h, ctx->w) + 16, sizeof(int16_t));
+    ctx->prediction = av_malloc_array((ctx->w >> NB_LEVELS), sizeof(int16_t));
+    if (!ctx->filter[0] || !ctx->filter[1] || !ctx->prediction)
+        return AVERROR(ENOMEM);
+
+    for (plane = 0; plane < 3; plane++) {
+        unsigned shift = plane > 0;
+        unsigned w = ctx->w >> shift;
+        unsigned h = ctx->h >> shift;
+
+        ctx->band[plane][0].width  = w >> NB_LEVELS;
+        ctx->band[plane][0].height = h >> NB_LEVELS;
+        ctx->band[plane][0].size = (w >> NB_LEVELS) * (h >> NB_LEVELS);
+
+        for (i = 0; i < NB_LEVELS * 3; i++) {
+            unsigned scale = ctx->levels - (i / 3);
+
+            ctx->band[plane][i + 1].width  = w >> scale;
+            ctx->band[plane][i + 1].height = h >> scale;
+            ctx->band[plane][i + 1].size = (w >> scale) * (h >> scale);
+
+            ctx->band[plane][i + 1].x = (w >> scale) * (((i + 1) % 3) != 2);
+            ctx->band[plane][i + 1].y = (h >> scale) * (((i + 1) % 3) != 1);
+        }
+    }
+
+    return 0;
+}
+
+static void free_buffers(AVCodecContext *avctx)
+{
+    PixletContext *ctx = avctx->priv_data;
+
+    av_freep(&ctx->filter[0]);
+    av_freep(&ctx->filter[1]);
+    av_freep(&ctx->prediction);
+}
+
+static av_cold int pixlet_close(AVCodecContext *avctx)
+{
+    PixletContext *ctx = avctx->priv_data;
+    free_buffers(avctx);
+    ctx->w = 0;
+    ctx->h = 0;
+    return 0;
+}
+
+static av_cold int pixlet_init(AVCodecContext *avctx)
+{
+    avctx->pix_fmt = AV_PIX_FMT_YUV420P16;
+    avctx->color_range = AVCOL_RANGE_JPEG;
+    return 0;
+}
+
+static int read_low_coeffs(AVCodecContext *avctx, int16_t *dst, int size, int width, ptrdiff_t stride)
+{
+    PixletContext *ctx = avctx->priv_data;
+    GetBitContext *b = &ctx->gbit;
+    unsigned cnt1, nbits, k, j = 0, i = 0;
+    int64_t value, state = 3;
+    int rlen, escape, flag = 0;
+
+    while (i < size) {
+        nbits = FFMIN(ff_clz((state >> 8) + 3) ^ 0x1F, 14);
+
+        cnt1 = get_unary(b, 0, 8);
+        if (cnt1 < 8) {
+            value = show_bits(b, nbits);
+            if (value <= 1) {
+                skip_bits(b, nbits - 1);
+                escape = ((1 << nbits) - 1) * cnt1;
+            } else {
+                skip_bits(b, nbits);
+                escape = value + ((1 << nbits) - 1) * cnt1 - 1;
+            }
+        } else {
+            escape = get_bits(b, 16);
+        }
+
+        value = -((escape + flag) & 1) | 1;
+        dst[j++] = value * ((escape + flag + 1) >> 1);
+        i++;
+        if (j == width) {
+            j = 0;
+            dst += stride;
+        }
+        state = 120 * (escape + flag) + state - (120 * state >> 8);
+        flag = 0;
+
+        if (state * 4 > 0xFF || i >= size)
+            continue;
+
+        nbits = ((state + 8) >> 5) + (state ? ff_clz(state) : 32) - 24;
+        escape = av_mod_uintp2(16383, nbits);
+        cnt1 = get_unary(b, 0, 8);
+        if (cnt1 > 7) {
+            rlen = get_bits(b, 16);
+        } else {
+            value = show_bits(b, nbits);
+            if (value > 1) {
+                skip_bits(b, nbits);
+                rlen = value + escape * cnt1 - 1;
+            } else {
+                skip_bits(b, nbits - 1);
+                rlen = escape * cnt1;
+            }
+        }
+
+        if (i + rlen > size)
+            return AVERROR_INVALIDDATA;
+        i += rlen;
+
+        for (k = 0; k < rlen; k++) {
+            dst[j++] = 0;
+            if (j == width) {
+                j = 0;
+                dst += stride;
+            }
+        }
+
+        state = 0;
+        flag = rlen < 0xFFFF ? 1 : 0;
+    }
+
+    align_get_bits(b);
+    return get_bits_count(b) >> 3;
+}
+
+static int read_high_coeffs(AVCodecContext *avctx, uint8_t *src, int16_t *dst, int size,
+                            int c, int a, int d,
+                            int width, ptrdiff_t stride)
+{
+    PixletContext *ctx = avctx->priv_data;
+    GetBitContext *b = &ctx->gbit;
+    unsigned cnt1, shbits, rlen, nbits, length, i = 0, j = 0, k;
+    int ret, escape, pfx, value, yflag, xflag, flag = 0;
+    int64_t state = 3, tmp;
+
+    if ((ret = init_get_bits8(b, src, bytestream2_get_bytes_left(&ctx->gb))) < 0)
+      return ret;
+
+    if ((a >= 0) + (a ^ (a >> 31)) - (a >> 31) != 1) {
+        nbits = 33 - ff_clz((a >= 0) + (a ^ (a >> 31)) - (a >> 31) - 1);
+        if (nbits > 16)
+            return AVERROR_INVALIDDATA;
+    } else {
+        nbits = 1;
+    }
+
+    length = 25 - nbits;
+
+    while (i < size) {
+        if (state >> 8 != -3) {
+            value = ff_clz((state >> 8) + 3) ^ 0x1F;
+        } else {
+            value = -1;
+        }
+
+        cnt1 = get_unary(b, 0, length);
+
+        if (cnt1 >= length) {
+            cnt1 = get_bits(b, nbits);
+        } else {
+            pfx = 14 + ((((uint64_t)(value - 14)) >> 32) & (value - 14));
+            cnt1 *= (1 << pfx) - 1;
+            shbits = show_bits(b, pfx);
+            if (shbits <= 1) {
+                skip_bits(b, pfx - 1);
+            } else {
+                skip_bits(b, pfx);
+                cnt1 += shbits - 1;
+            }
+        }
+
+        xflag = flag + cnt1;
+        yflag = xflag;
+
+        if (flag + cnt1 == 0) {
+            value = 0;
+        } else {
+            xflag &= 1u;
+            tmp = c * ((yflag + 1) >> 1) + (c >> 1);
+            value = xflag + (tmp ^ -xflag);
+        }
+
+        i++;
+        dst[j++] = value;
+        if (j == width) {
+            j = 0;
+            dst += stride;
+        }
+        state += d * yflag - (d * state >> 8);
+
+        flag = 0;
+
+        if (state * 4 > 0xFF || i >= size)
+            continue;
+
+        pfx = ((state + 8) >> 5) + (state ? ff_clz(state): 32) - 24;
+        escape = av_mod_uintp2(16383, pfx);
+        cnt1 = get_unary(b, 0, 8);
+        if (cnt1 < 8) {
+            value = show_bits(b, pfx);
+            if (value > 1) {
+                skip_bits(b, pfx);
+                rlen = value + escape * cnt1 - 1;
+            } else {
+                skip_bits(b, pfx - 1);
+                rlen = escape * cnt1;
+            }
+        } else {
+            if (get_bits1(b))
+                value = get_bits(b, 16);
+            else
+                value = get_bits(b, 8);
+
+            rlen = value + 8 * escape;
+        }
+
+        if (rlen > 0xFFFF || i + rlen > size)
+            return AVERROR_INVALIDDATA;
+        i += rlen;
+
+        for (k = 0; k < rlen; k++) {
+            dst[j++] = 0;
+            if (j == width) {
+                j = 0;
+                dst += stride;
+            }
+        }
+
+        state = 0;
+        flag = rlen < 0xFFFF ? 1 : 0;
+    }
+
+    align_get_bits(b);
+    return get_bits_count(b) >> 3;
+}
+
+static int read_highpass(AVCodecContext *avctx, uint8_t *ptr, int plane, AVFrame *frame)
+{
+    PixletContext *ctx = avctx->priv_data;
+    ptrdiff_t stride = frame->linesize[plane] / 2;
+    int i, ret;
+
+    for (i = 0; i < ctx->levels * 3; i++) {
+        int32_t a = bytestream2_get_be32(&ctx->gb);
+        int32_t b = bytestream2_get_be32(&ctx->gb);
+        int32_t c = bytestream2_get_be32(&ctx->gb);
+        int32_t d = bytestream2_get_be32(&ctx->gb);
+        int16_t *dest = (int16_t *)frame->data[plane] + ctx->band[plane][i + 1].x +
+                                               stride * ctx->band[plane][i + 1].y;
+        unsigned size = ctx->band[plane][i + 1].size;
+        uint32_t magic;
+
+        magic = bytestream2_get_be32(&ctx->gb);
+        if (magic != 0xDEADBEEF) {
+            av_log(avctx, AV_LOG_ERROR, "wrong magic number: 0x%08X for plane %d, band %d\n", magic, plane, i);
+            return AVERROR_INVALIDDATA;
+        }
+
+        ret = read_high_coeffs(avctx, ptr + bytestream2_tell(&ctx->gb), dest, size,
+                               c, (b >= FFABS(a)) ? b : a, d,
+                               ctx->band[plane][i + 1].width, stride);
+        if (ret < 0) {
+            av_log(avctx, AV_LOG_ERROR, "error in highpass coefficients for plane %d, band %d\n", plane, i);
+            return ret;
+        }
+        bytestream2_skip(&ctx->gb, ret);
+    }
+
+    return 0;
+}
+
+static void lowpass_prediction(int16_t *dst, int16_t *pred, int width, int height, ptrdiff_t stride)
+{
+    int16_t *next, val;
+    int i, j;
+
+    memset(pred, 0, width * sizeof(*pred));
+
+    for (i = 0; i < height; i++) {
+        val     = pred[0] + dst[0];
+        dst[0]  = val;
+        pred[0] = val;
+        next    = dst + 2;
+        for (j = 1; j < width; j++, next++) {
+            val       = pred[j] + next[-1];
+            next[-1]  = val;
+            pred[j]   = val;
+            next[-1] += next[-2];
+        }
+        dst += stride;
+    }
+}
+
+static void filter(int16_t *dest, int16_t *tmp, unsigned size, float SCALE)
+{
+    int16_t *low, *high, *ll, *lh, *hl, *hh;
+    int hsize, i, j;
+    float value;
+
+    hsize = size >> 1;
+    low = tmp + 4;
+    high = &low[hsize + 8];
+
+    memcpy(low, dest, size);
+    memcpy(high, dest + hsize, size);
+
+    ll = &low[hsize];
+    lh = &low[hsize];
+    hl = &high[hsize];
+    hh = hl;
+    for (i = 4, j = 2; i; i--, j++, ll--, hh++, lh++, hl--) {
+        low[i - 5]  = low[j - 1];
+        lh[0]       = ll[-1];
+        high[i - 5] = high[j - 2];
+        hh[0]       = hl[-2];
+    }
+
+    for (i = 0; i < hsize; i++) {
+        value = low [i+1] * -0.07576144003329376f +
+                low [i  ] *  0.8586296626673486f  +
+                low [i-1] * -0.07576144003329376f +
+                high[i  ] *  0.3535533905932737f  +
+                high[i-1] *  0.3535533905932737f;
+        dest[i * 2] = av_clipf(value * SCALE, INT16_MIN, INT16_MAX);
+    }
+
+    for (i = 0; i < hsize; i++) {
+        value = low [i+2] * -0.01515228715813062f +
+                low [i+1] *  0.3687056777514043f  +
+                low [i  ] *  0.3687056777514043f  +
+                low [i-1] * -0.01515228715813062f +
+                high[i+1] *  0.07071067811865475f +
+                high[i  ] * -0.8485281374238569f  +
+                high[i-1] *  0.07071067811865475f;
+        dest[i * 2 + 1] = av_clipf(value * SCALE, INT16_MIN, INT16_MAX);
+    }
+}
+
+static void reconstruction(AVCodecContext *avctx,
+                           int16_t *dest, unsigned width, unsigned height, ptrdiff_t stride, int nb_levels,
+                           float *scaling_H, float *scaling_V)
+{
+    PixletContext *ctx = avctx->priv_data;
+    unsigned scaled_width, scaled_height;
+    float scale_H, scale_V;
+    int16_t *ptr, *tmp;
+    int i, j, k;
+
+    scaled_height = height >> nb_levels;
+    scaled_width  = width  >> nb_levels;
+    tmp = ctx->filter[0];
+
+    for (i = 0; i < nb_levels; i++) {
+        scaled_width  <<= 1;
+        scaled_height <<= 1;
+        scale_H = scaling_H[i];
+        scale_V = scaling_V[i];
+
+        ptr = dest;
+        for (j = 0; j < scaled_height; j++) {
+            filter(ptr, ctx->filter[1], scaled_width, scale_V);
+            ptr += stride;
+        }
+
+        for (j = 0; j < scaled_width; j++) {
+            ptr = dest + j;
+            for (k = 0; k < scaled_height; k++) {
+                tmp[k] = *ptr;
+                ptr += stride;
+            }
+
+            filter(tmp, ctx->filter[1], scaled_height, scale_H);
+
+            ptr = dest + j;
+            for (k = 0; k < scaled_height; k++) {
+                *ptr = tmp[k];
+                ptr += stride;
+            }
+        }
+    }
+}
+
+#define SQR(a) ((a) * (a))
+
+static void postprocess_luma(AVFrame *frame, int w, int h, int depth)
+{
+    uint16_t *dsty = (uint16_t *)frame->data[0];
+    int16_t *srcy  = (int16_t *)frame->data[0];
+    ptrdiff_t stridey = frame->linesize[0] / 2;
+    const float factor = 1. / ((1 << depth) - 1);
+    int i, j;
+
+    for (j = 0; j < h; j++) {
+        for (i = 0; i < w; i++) {
+            dsty[i] = SQR(FFMAX(srcy[i], 0) * factor) * 65535;
+        }
+        dsty += stridey;
+        srcy += stridey;
+    }
+}
+
+static void postprocess_chroma(AVFrame *frame, int w, int h, int depth)
+{
+    uint16_t *dstu = (uint16_t *)frame->data[1];
+    uint16_t *dstv = (uint16_t *)frame->data[2];
+    int16_t *srcu  = (int16_t *)frame->data[1];
+    int16_t *srcv  = (int16_t *)frame->data[2];
+    ptrdiff_t strideu = frame->linesize[1] / 2;
+    ptrdiff_t stridev = frame->linesize[2] / 2;
+    const int add = 1 << (depth - 1);
+    const int shift = 16 - depth;
+    int i, j;
+
+    for (j = 0; j < h; j++) {
+        for (i = 0; i < w; i++) {
+            dstu[i] = (add + srcu[i]) << shift;
+            dstv[i] = (add + srcv[i]) << shift;
+        }
+        dstu += strideu;
+        dstv += stridev;
+        srcu += strideu;
+        srcv += stridev;
+    }
+}
+
+static int decode_plane(AVCodecContext *avctx, int plane, AVPacket *avpkt, AVFrame *frame)
+{
+    PixletContext *ctx = avctx->priv_data;
+    ptrdiff_t stride = frame->linesize[plane] / 2;
+    unsigned shift = plane > 0;
+    int16_t *dst;
+    int i, ret;
+
+    for (i = ctx->levels - 1; i >= 0; i--) {
+        ctx->scaling[plane][H][i] = 1000000. / sign_extend(bytestream2_get_be32(&ctx->gb), 32);
+        ctx->scaling[plane][V][i] = 1000000. / sign_extend(bytestream2_get_be32(&ctx->gb), 32);
+    }
+
+    bytestream2_skip(&ctx->gb, 4);
+
+    dst = (int16_t *)frame->data[plane];
+    dst[0] = sign_extend(bytestream2_get_be16(&ctx->gb), 16);
+
+    if ((ret = init_get_bits8(&ctx->gbit, avpkt->data + bytestream2_tell(&ctx->gb),
+                              bytestream2_get_bytes_left(&ctx->gb))) < 0)
+        return ret;
+
+    ret = read_low_coeffs(avctx, dst + 1, ctx->band[plane][0].width - 1, ctx->band[plane][0].width - 1, 0);
+    if (ret < 0) {
+        av_log(avctx, AV_LOG_ERROR, "error in lowpass coefficients for plane %d, top row\n", plane);
+        return ret;
+    }
+
+    ret = read_low_coeffs(avctx, dst + stride, ctx->band[plane][0].height - 1, 1, stride);
+    if (ret < 0) {
+        av_log(avctx, AV_LOG_ERROR, "error in lowpass coefficients for plane %d, left column\n", plane);
+        return ret;
+    }
+
+    ret = read_low_coeffs(avctx, dst + stride + 1,
+                          (ctx->band[plane][0].width - 1) * (ctx->band[plane][0].height - 1),
+                          ctx->band[plane][0].width - 1, stride);
+    if (ret < 0) {
+        av_log(avctx, AV_LOG_ERROR, "error in lowpass coefficients for plane %d, rest\n", plane);
+        return ret;
+    }
+
+    bytestream2_skip(&ctx->gb, ret);
+    if (bytestream2_get_bytes_left(&ctx->gb) <= 0) {
+        av_log(avctx, AV_LOG_ERROR, "no bytes left\n");
+        return AVERROR_INVALIDDATA;
+    }
+
+    ret = read_highpass(avctx, avpkt->data, plane, frame);
+    if (ret < 0)
+        return ret;
+
+    lowpass_prediction(dst, ctx->prediction,
+                       ctx->band[plane][0].width, ctx->band[plane][0].height, stride);
+
+    reconstruction(avctx, (int16_t *)frame->data[plane], ctx->w >> shift, ctx->h >> shift,
+                   stride, NB_LEVELS, ctx->scaling[plane][H], ctx->scaling[plane][V]);
+
+    return 0;
+}
+
+static int pixlet_decode_frame(AVCodecContext *avctx, void *data,
+                               int *got_frame, AVPacket *avpkt)
+{
+    PixletContext *ctx = avctx->priv_data;
+    int i, w, h, width, height, ret, version;
+    AVFrame *p = data;
+    ThreadFrame frame = { .f = data };
+    uint32_t pktsize;
+
+    bytestream2_init(&ctx->gb, avpkt->data, avpkt->size);
+
+    pktsize = bytestream2_get_be32(&ctx->gb);
+    if (pktsize <= 44 || pktsize - 4 > bytestream2_get_bytes_left(&ctx->gb)) {
+        av_log(avctx, AV_LOG_ERROR, "Invalid packet size %u.\n", pktsize);
+        return AVERROR_INVALIDDATA;
+    }
+
+    version = bytestream2_get_le32(&ctx->gb);
+    if (version != 1)
+        avpriv_request_sample(avctx, "Version %d", version);
+
+    bytestream2_skip(&ctx->gb, 4);
+    if (bytestream2_get_be32(&ctx->gb) != 1)
+        return AVERROR_INVALIDDATA;
+    bytestream2_skip(&ctx->gb, 4);
+
+    width  = bytestream2_get_be32(&ctx->gb);
+    height = bytestream2_get_be32(&ctx->gb);
+
+    w = FFALIGN(width,  1 << (NB_LEVELS + 1));
+    h = FFALIGN(height, 1 << (NB_LEVELS + 1));
+
+    ctx->levels = bytestream2_get_be32(&ctx->gb);
+    if (ctx->levels != NB_LEVELS)
+        return AVERROR_INVALIDDATA;
+    ctx->depth = bytestream2_get_be32(&ctx->gb);
+    if (ctx->depth < 8 || ctx->depth > 15) {
+        avpriv_request_sample(avctx, "Depth %d", ctx->depth);
+        return AVERROR_INVALIDDATA;
+    }
+
+    ret = ff_set_dimensions(avctx, w, h);
+    if (ret < 0)
+        return ret;
+    avctx->width  = width;
+    avctx->height = height;
+
+    if (ctx->w != w || ctx->h != h) {
+        free_buffers(avctx);
+        ctx->w = w;
+        ctx->h = h;
+
+        ret = init_decoder(avctx);
+        if (ret < 0) {
+            free_buffers(avctx);
+            ctx->w = 0;
+            ctx->h = 0;
+            return ret;
+        }
+    }
+
+    bytestream2_skip(&ctx->gb, 8);
+
+    p->pict_type = AV_PICTURE_TYPE_I;
+    p->key_frame = 1;
+    p->color_range = AVCOL_RANGE_JPEG;
+
+    ret = ff_thread_get_buffer(avctx, &frame, 0);
+    if (ret < 0)
+        return ret;
+
+    for (i = 0; i < 3; i++) {
+        ret = decode_plane(avctx, i, avpkt, frame.f);
+        if (ret < 0)
+            return ret;
+        if (avctx->flags & AV_CODEC_FLAG_GRAY)
+            break;
+    }
+
+    postprocess_luma(frame.f, ctx->w, ctx->h, ctx->depth);
+    postprocess_chroma(frame.f, ctx->w >> 1, ctx->h >> 1, ctx->depth);
+
+    *got_frame = 1;
+
+    return pktsize;
+}
+
+#if HAVE_THREADS
+static int pixlet_init_thread_copy(AVCodecContext *avctx)
+{
+    PixletContext *ctx = avctx->priv_data;
+
+    ctx->filter[0] = NULL;
+    ctx->filter[1] = NULL;
+    ctx->prediction = NULL;
+    ctx->w = ctx->h = 0;
+
+    return 0;
+}
+#endif
+
+AVCodec ff_pixlet_decoder = {
+    .name             = "pixlet",
+    .long_name        = NULL_IF_CONFIG_SMALL("Apple Pixlet"),
+    .type             = AVMEDIA_TYPE_VIDEO,
+    .id               = AV_CODEC_ID_PIXLET,
+    .init             = pixlet_init,
+    .init_thread_copy = ONLY_IF_THREADS_ENABLED(pixlet_init_thread_copy),
+    .close            = pixlet_close,
+    .decode           = pixlet_decode_frame,
+    .priv_data_size   = sizeof(PixletContext),
+    .capabilities     = AV_CODEC_CAP_DR1 |
+                        AV_CODEC_CAP_FRAME_THREADS,
+    .caps_internal    = FF_CODEC_CAP_INIT_THREADSAFE |
+                        FF_CODEC_CAP_INIT_CLEANUP,
+};