2 * Copyright 2011 Stefano Sabatini | stefasab at gmail.com
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 * libavcodec/libavfilter gluing utilities
27 #include "libavutil/avassert.h"
28 #include "libavutil/opt.h"
30 int avfilter_copy_frame_props(AVFilterBufferRef *dst, const AVFrame *src)
33 dst->pos = av_frame_get_pkt_pos(src);
34 dst->format = src->format;
37 case AVMEDIA_TYPE_VIDEO:
38 dst->video->w = src->width;
39 dst->video->h = src->height;
40 dst->video->sample_aspect_ratio = src->sample_aspect_ratio;
41 dst->video->interlaced = src->interlaced_frame;
42 dst->video->top_field_first = src->top_field_first;
43 dst->video->key_frame = src->key_frame;
44 dst->video->pict_type = src->pict_type;
46 case AVMEDIA_TYPE_AUDIO:
47 dst->audio->sample_rate = src->sample_rate;
48 dst->audio->channel_layout = src->channel_layout;
51 return AVERROR(EINVAL);
57 AVFilterBufferRef *avfilter_get_video_buffer_ref_from_frame(const AVFrame *frame,
60 AVFilterBufferRef *picref =
61 avfilter_get_video_buffer_ref_from_arrays(frame->data, frame->linesize, perms,
62 frame->width, frame->height,
66 avfilter_copy_frame_props(picref, frame);
70 AVFilterBufferRef *avfilter_get_audio_buffer_ref_from_frame(const AVFrame *frame,
73 AVFilterBufferRef *picref =
74 avfilter_get_audio_buffer_ref_from_arrays((uint8_t **)frame->data, frame->linesize[0], perms,
75 frame->nb_samples, frame->format,
76 av_frame_get_channel_layout(frame));
79 avfilter_copy_frame_props(picref, frame);
83 AVFilterBufferRef *avfilter_get_buffer_ref_from_frame(enum AVMediaType type,
88 case AVMEDIA_TYPE_VIDEO:
89 return avfilter_get_video_buffer_ref_from_frame(frame, perms);
90 case AVMEDIA_TYPE_AUDIO:
91 return avfilter_get_audio_buffer_ref_from_frame(frame, perms);
97 int avfilter_copy_buf_props(AVFrame *dst, const AVFilterBufferRef *src)
99 int planes, nb_channels;
102 return AVERROR(EINVAL);
103 /* abort in case the src is NULL and dst is not, avoid inconsistent state in dst */
106 memcpy(dst->data, src->data, sizeof(dst->data));
107 memcpy(dst->linesize, src->linesize, sizeof(dst->linesize));
110 dst->format = src->format;
111 av_frame_set_pkt_pos(dst, src->pos);
114 case AVMEDIA_TYPE_VIDEO:
115 av_assert0(src->video);
116 dst->width = src->video->w;
117 dst->height = src->video->h;
118 dst->sample_aspect_ratio = src->video->sample_aspect_ratio;
119 dst->interlaced_frame = src->video->interlaced;
120 dst->top_field_first = src->video->top_field_first;
121 dst->key_frame = src->video->key_frame;
122 dst->pict_type = src->video->pict_type;
124 case AVMEDIA_TYPE_AUDIO:
125 av_assert0(src->audio);
126 nb_channels = av_get_channel_layout_nb_channels(src->audio->channel_layout);
127 planes = av_sample_fmt_is_planar(src->format) ? nb_channels : 1;
129 if (planes > FF_ARRAY_ELEMS(dst->data)) {
130 dst->extended_data = av_mallocz(planes * sizeof(*dst->extended_data));
131 if (!dst->extended_data)
132 return AVERROR(ENOMEM);
133 memcpy(dst->extended_data, src->extended_data,
134 planes * sizeof(dst->extended_data));
136 dst->extended_data = dst->data;
137 dst->nb_samples = src->audio->nb_samples;
138 av_frame_set_sample_rate (dst, src->audio->sample_rate);
139 av_frame_set_channel_layout(dst, src->audio->channel_layout);
142 return AVERROR(EINVAL);
148 #ifdef FF_API_FILL_FRAME
149 int avfilter_fill_frame_from_audio_buffer_ref(AVFrame *frame,
150 const AVFilterBufferRef *samplesref)
152 return avfilter_copy_buf_props(frame, samplesref);
155 int avfilter_fill_frame_from_video_buffer_ref(AVFrame *frame,
156 const AVFilterBufferRef *picref)
158 return avfilter_copy_buf_props(frame, picref);
161 int avfilter_fill_frame_from_buffer_ref(AVFrame *frame,
162 const AVFilterBufferRef *ref)
164 return avfilter_copy_buf_props(frame, ref);