Commit | Line | Data |
---|---|---|
2ba45a60 DM |
1 | /* |
2 | * Copyright Stefano Sabatini <stefasab gmail com> | |
3 | * Copyright Anton Khirnov <anton khirnov net> | |
4 | * Copyright Michael Niedermayer <michaelni gmx at> | |
5 | * | |
6 | * This file is part of FFmpeg. | |
7 | * | |
8 | * FFmpeg is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU Lesser General Public | |
10 | * License as published by the Free Software Foundation; either | |
11 | * version 2.1 of the License, or (at your option) any later version. | |
12 | * | |
13 | * FFmpeg is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | * Lesser General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU Lesser General Public | |
19 | * License along with FFmpeg; if not, write to the Free Software | |
20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
21 | */ | |
22 | ||
23 | #include "libavutil/channel_layout.h" | |
24 | #include "libavutil/avassert.h" | |
25 | #include "libavutil/common.h" | |
26 | #include "libavutil/imgutils.h" | |
27 | #include "libavutil/internal.h" | |
28 | #include "libavcodec/avcodec.h" | |
29 | ||
30 | #include "avfilter.h" | |
31 | #include "internal.h" | |
32 | #include "audio.h" | |
33 | #include "avcodec.h" | |
34 | #include "version.h" | |
35 | ||
36 | #if FF_API_AVFILTERBUFFER | |
37 | void ff_avfilter_default_free_buffer(AVFilterBuffer *ptr) | |
38 | { | |
39 | if (ptr->extended_data != ptr->data) | |
40 | av_freep(&ptr->extended_data); | |
41 | av_free(ptr->data[0]); | |
42 | av_free(ptr); | |
43 | } | |
44 | ||
45 | static void copy_video_props(AVFilterBufferRefVideoProps *dst, AVFilterBufferRefVideoProps *src) { | |
46 | *dst = *src; | |
47 | if (src->qp_table) { | |
48 | int qsize = src->qp_table_size; | |
49 | dst->qp_table = av_malloc(qsize); | |
50 | memcpy(dst->qp_table, src->qp_table, qsize); | |
51 | } | |
52 | } | |
53 | ||
54 | AVFilterBufferRef *avfilter_ref_buffer(AVFilterBufferRef *ref, int pmask) | |
55 | { | |
56 | AVFilterBufferRef *ret = av_malloc(sizeof(AVFilterBufferRef)); | |
57 | if (!ret) | |
58 | return NULL; | |
59 | *ret = *ref; | |
60 | ||
61 | ret->metadata = NULL; | |
62 | av_dict_copy(&ret->metadata, ref->metadata, 0); | |
63 | ||
64 | if (ref->type == AVMEDIA_TYPE_VIDEO) { | |
65 | ret->video = av_malloc(sizeof(AVFilterBufferRefVideoProps)); | |
66 | if (!ret->video) { | |
67 | av_free(ret); | |
68 | return NULL; | |
69 | } | |
70 | copy_video_props(ret->video, ref->video); | |
71 | ret->extended_data = ret->data; | |
72 | } else if (ref->type == AVMEDIA_TYPE_AUDIO) { | |
73 | ret->audio = av_malloc(sizeof(AVFilterBufferRefAudioProps)); | |
74 | if (!ret->audio) { | |
75 | av_free(ret); | |
76 | return NULL; | |
77 | } | |
78 | *ret->audio = *ref->audio; | |
79 | ||
80 | if (ref->extended_data && ref->extended_data != ref->data) { | |
81 | int nb_channels = av_get_channel_layout_nb_channels(ref->audio->channel_layout); | |
82 | if (!(ret->extended_data = av_malloc_array(sizeof(*ret->extended_data), | |
83 | nb_channels))) { | |
84 | av_freep(&ret->audio); | |
85 | av_freep(&ret); | |
86 | return NULL; | |
87 | } | |
88 | memcpy(ret->extended_data, ref->extended_data, | |
89 | sizeof(*ret->extended_data) * nb_channels); | |
90 | } else | |
91 | ret->extended_data = ret->data; | |
92 | } | |
93 | ret->perms &= pmask; | |
94 | ret->buf->refcount ++; | |
95 | return ret; | |
96 | } | |
97 | ||
98 | void avfilter_unref_buffer(AVFilterBufferRef *ref) | |
99 | { | |
100 | if (!ref) | |
101 | return; | |
102 | av_assert0(ref->buf->refcount > 0); | |
103 | if (!(--ref->buf->refcount)) | |
104 | ref->buf->free(ref->buf); | |
105 | if (ref->extended_data != ref->data) | |
106 | av_freep(&ref->extended_data); | |
107 | if (ref->video) | |
108 | av_freep(&ref->video->qp_table); | |
109 | av_freep(&ref->video); | |
110 | av_freep(&ref->audio); | |
111 | av_dict_free(&ref->metadata); | |
112 | av_free(ref); | |
113 | } | |
114 | ||
115 | void avfilter_unref_bufferp(AVFilterBufferRef **ref) | |
116 | { | |
117 | FF_DISABLE_DEPRECATION_WARNINGS | |
118 | avfilter_unref_buffer(*ref); | |
119 | FF_ENABLE_DEPRECATION_WARNINGS | |
120 | *ref = NULL; | |
121 | } | |
122 | ||
123 | int avfilter_copy_frame_props(AVFilterBufferRef *dst, const AVFrame *src) | |
124 | { | |
125 | dst->pts = src->pts; | |
126 | dst->pos = av_frame_get_pkt_pos(src); | |
127 | dst->format = src->format; | |
128 | ||
129 | av_dict_free(&dst->metadata); | |
130 | av_dict_copy(&dst->metadata, av_frame_get_metadata(src), 0); | |
131 | ||
132 | switch (dst->type) { | |
133 | case AVMEDIA_TYPE_VIDEO: | |
134 | dst->video->w = src->width; | |
135 | dst->video->h = src->height; | |
136 | dst->video->sample_aspect_ratio = src->sample_aspect_ratio; | |
137 | dst->video->interlaced = src->interlaced_frame; | |
138 | dst->video->top_field_first = src->top_field_first; | |
139 | dst->video->key_frame = src->key_frame; | |
140 | dst->video->pict_type = src->pict_type; | |
141 | break; | |
142 | case AVMEDIA_TYPE_AUDIO: | |
143 | dst->audio->sample_rate = src->sample_rate; | |
144 | dst->audio->channel_layout = src->channel_layout; | |
145 | break; | |
146 | default: | |
147 | return AVERROR(EINVAL); | |
148 | } | |
149 | ||
150 | return 0; | |
151 | } | |
152 | ||
153 | void avfilter_copy_buffer_ref_props(AVFilterBufferRef *dst, const AVFilterBufferRef *src) | |
154 | { | |
155 | // copy common properties | |
156 | dst->pts = src->pts; | |
157 | dst->pos = src->pos; | |
158 | ||
159 | switch (src->type) { | |
160 | case AVMEDIA_TYPE_VIDEO: { | |
161 | if (dst->video->qp_table) | |
162 | av_freep(&dst->video->qp_table); | |
163 | copy_video_props(dst->video, src->video); | |
164 | break; | |
165 | } | |
166 | case AVMEDIA_TYPE_AUDIO: *dst->audio = *src->audio; break; | |
167 | default: break; | |
168 | } | |
169 | ||
170 | av_dict_free(&dst->metadata); | |
171 | av_dict_copy(&dst->metadata, src->metadata, 0); | |
172 | } | |
173 | #endif /* FF_API_AVFILTERBUFFER */ |