GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavcodec/h264_picture.c Lines: 81 97 83.5 %
Date: 2020-11-28 20:53:16 Branches: 34 50 68.0 %

Line Branch Exec Source
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/*
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 * H.26L/H.264/AVC/JVT/14496-10/... decoder
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 * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
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 *
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 * This file is part of FFmpeg.
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 *
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 * FFmpeg is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 2.1 of the License, or (at your option) any later version.
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 *
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 * FFmpeg is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with FFmpeg; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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 */
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/**
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 * @file
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 * H.264 / AVC / MPEG-4 part10 codec.
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 * @author Michael Niedermayer <michaelni@gmx.at>
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 */
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#include "libavutil/avassert.h"
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#include "libavutil/imgutils.h"
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#include "internal.h"
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#include "cabac.h"
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#include "cabac_functions.h"
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#include "error_resilience.h"
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#include "avcodec.h"
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#include "h264dec.h"
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#include "h264data.h"
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#include "h264chroma.h"
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#include "h264_mvpred.h"
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#include "mathops.h"
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#include "mpegutils.h"
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#include "rectangle.h"
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#include "thread.h"
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121811
void ff_h264_unref_picture(H264Context *h, H264Picture *pic)
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{
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121811
    int off = offsetof(H264Picture, tf) + sizeof(pic->tf);
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    int i;
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49

121811
    if (!pic->f || !pic->f->buf[0])
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73861
        return;
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47950
    ff_thread_release_buffer(h->avctx, &pic->tf);
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47950
    av_buffer_unref(&pic->hwaccel_priv_buf);
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55
47950
    av_buffer_unref(&pic->qscale_table_buf);
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47950
    av_buffer_unref(&pic->mb_type_buf);
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47950
    av_buffer_unref(&pic->pps_buf);
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143850
    for (i = 0; i < 2; i++) {
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95900
        av_buffer_unref(&pic->motion_val_buf[i]);
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95900
        av_buffer_unref(&pic->ref_index_buf[i]);
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    }
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47950
    memset((uint8_t*)pic + off, 0, sizeof(*pic) - off);
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}
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24604
int ff_h264_ref_picture(H264Context *h, H264Picture *dst, H264Picture *src)
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{
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    int ret, i;
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24604
    av_assert0(!dst->f->buf[0]);
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24604
    av_assert0(src->f->buf[0]);
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24604
    av_assert0(src->tf.f == src->f);
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24604
    dst->tf.f = dst->f;
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24604
    ret = ff_thread_ref_frame(&dst->tf, &src->tf);
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24604
    if (ret < 0)
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        goto fail;
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79
24604
    dst->qscale_table_buf = av_buffer_ref(src->qscale_table_buf);
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24604
    dst->mb_type_buf      = av_buffer_ref(src->mb_type_buf);
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24604
    dst->pps_buf          = av_buffer_ref(src->pps_buf);
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24604
    if (!dst->qscale_table_buf || !dst->mb_type_buf || !dst->pps_buf) {
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        ret = AVERROR(ENOMEM);
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        goto fail;
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    }
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24604
    dst->qscale_table = src->qscale_table;
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24604
    dst->mb_type      = src->mb_type;
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24604
    dst->pps          = src->pps;
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73812
    for (i = 0; i < 2; i++) {
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49208
        dst->motion_val_buf[i] = av_buffer_ref(src->motion_val_buf[i]);
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49208
        dst->ref_index_buf[i]  = av_buffer_ref(src->ref_index_buf[i]);
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49208
        if (!dst->motion_val_buf[i] || !dst->ref_index_buf[i]) {
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            ret = AVERROR(ENOMEM);
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            goto fail;
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        }
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49208
        dst->motion_val[i] = src->motion_val[i];
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49208
        dst->ref_index[i]  = src->ref_index[i];
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    }
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24604
    if (src->hwaccel_picture_private) {
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        dst->hwaccel_priv_buf = av_buffer_ref(src->hwaccel_priv_buf);
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        if (!dst->hwaccel_priv_buf) {
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            ret = AVERROR(ENOMEM);
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            goto fail;
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        }
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        dst->hwaccel_picture_private = dst->hwaccel_priv_buf->data;
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    }
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73812
    for (i = 0; i < 2; i++)
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49208
        dst->field_poc[i] = src->field_poc[i];
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24604
    memcpy(dst->ref_poc,   src->ref_poc,   sizeof(src->ref_poc));
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24604
    memcpy(dst->ref_count, src->ref_count, sizeof(src->ref_count));
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24604
    dst->poc           = src->poc;
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24604
    dst->frame_num     = src->frame_num;
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24604
    dst->mmco_reset    = src->mmco_reset;
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24604
    dst->long_ref      = src->long_ref;
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24604
    dst->mbaff         = src->mbaff;
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24604
    dst->field_picture = src->field_picture;
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24604
    dst->reference     = src->reference;
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24604
    dst->recovered     = src->recovered;
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24604
    dst->invalid_gap   = src->invalid_gap;
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24604
    dst->sei_recovery_frame_cnt = src->sei_recovery_frame_cnt;
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24604
    dst->mb_width      = src->mb_width;
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24604
    dst->mb_height     = src->mb_height;
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24604
    dst->mb_stride     = src->mb_stride;
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130
24604
    return 0;
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fail:
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    ff_h264_unref_picture(h, dst);
133
    return ret;
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}
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136
124447
void ff_h264_set_erpic(ERPicture *dst, H264Picture *src)
137
{
138
#if CONFIG_ERROR_RESILIENCE
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    int i;
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141
124447
    memset(dst, 0, sizeof(*dst));
142
143
124447
    if (!src)
144
80044
        return;
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146
44403
    dst->f = src->f;
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44403
    dst->tf = &src->tf;
148
149
133209
    for (i = 0; i < 2; i++) {
150
88806
        dst->motion_val[i] = src->motion_val[i];
151
88806
        dst->ref_index[i] = src->ref_index[i];
152
    }
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154
44403
    dst->mb_type = src->mb_type;
155
44403
    dst->field_picture = src->field_picture;
156
#endif /* CONFIG_ERROR_RESILIENCE */
157
}
158
159
25907
int ff_h264_field_end(H264Context *h, H264SliceContext *sl, int in_setup)
160
{
161
25907
    AVCodecContext *const avctx = h->avctx;
162
25907
    int err = 0;
163
25907
    h->mb_y = 0;
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165

25907
    if (in_setup || !(avctx->active_thread_type & FF_THREAD_FRAME)) {
166
25875
        if (!h->droppable) {
167
16801
            err = ff_h264_execute_ref_pic_marking(h);
168
16801
            h->poc.prev_poc_msb = h->poc.poc_msb;
169
16801
            h->poc.prev_poc_lsb = h->poc.poc_lsb;
170
        }
171
25875
        h->poc.prev_frame_num_offset = h->poc.frame_num_offset;
172
25875
        h->poc.prev_frame_num        = h->poc.frame_num;
173
    }
174
175
25907
    if (avctx->hwaccel) {
176
        err = avctx->hwaccel->end_frame(avctx);
177
        if (err < 0)
178
            av_log(avctx, AV_LOG_ERROR,
179
                   "hardware accelerator failed to decode picture\n");
180
    }
181
182

25907
    if (!in_setup && !h->droppable)
183
16751
        ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
184
16751
                                  h->picture_structure == PICT_BOTTOM_FIELD);
185
25907
    emms_c();
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187
25907
    h->current_slice = 0;
188
189
25907
    return err;
190
}