git.sesse.net Git - ffmpeg/blob - libavfilter/avcodec.c

   1 /*
   2  * This file is part of FFmpeg.
   3  *
   4  * FFmpeg is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * FFmpeg is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with FFmpeg; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  17  */
  18
  19 /**
  20  * @file
  21  * libavcodec/libavfilter gluing utilities
  22  */
  23
  24 #include "avcodec.h"
  25
  26 int avfilter_copy_frame_props(AVFilterBufferRef *dst, const AVFrame *src)
  27 {
  28     dst->pts    = src->pts;
  29     dst->pos    = src->pkt_pos;
  30     dst->format = src->format;
  31
  32     switch (dst->type) {
  33     case AVMEDIA_TYPE_VIDEO:
  34         dst->video->w                   = src->width;
  35         dst->video->h                   = src->height;
  36         dst->video->sample_aspect_ratio = src->sample_aspect_ratio;
  37         dst->video->interlaced          = src->interlaced_frame;
  38         dst->video->top_field_first     = src->top_field_first;
  39         dst->video->key_frame           = src->key_frame;
  40         dst->video->pict_type           = src->pict_type;
  41     }
  42
  43     return 0;
  44 }
  45
  46 AVFilterBufferRef *avfilter_get_video_buffer_ref_from_frame(const AVFrame *frame,
  47                                                             int perms)
  48 {
  49     AVFilterBufferRef *picref =
  50         avfilter_get_video_buffer_ref_from_arrays(frame->data, frame->linesize, perms,
  51                                                   frame->width, frame->height,
  52                                                   frame->format);
  53     if (!picref)
  54         return NULL;
  55     avfilter_copy_frame_props(picref, frame);
  56     return picref;
  57 }
  58
  59 int avfilter_fill_frame_from_video_buffer_ref(AVFrame *frame,
  60                                               const AVFilterBufferRef *picref)
  61 {
  62     if (!picref || !picref->video || !frame)
  63         return AVERROR(EINVAL);
  64
  65     memcpy(frame->data,     picref->data,     sizeof(frame->data));
  66     memcpy(frame->linesize, picref->linesize, sizeof(frame->linesize));
  67     frame->pkt_pos          = picref->pos;
  68     frame->interlaced_frame = picref->video->interlaced;
  69     frame->top_field_first  = picref->video->top_field_first;
  70     frame->key_frame        = picref->video->key_frame;
  71     frame->pict_type        = picref->video->pict_type;
  72     frame->sample_aspect_ratio = picref->video->sample_aspect_ratio;
  73
  74     return 0;
  75 }