/src/ffmpeg/libavcodec/null.c
Line | Count | Source |
1 | | /* |
2 | | * Null codecs |
3 | | * |
4 | | * This file is part of FFmpeg. |
5 | | * |
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. |
10 | | * |
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. |
15 | | * |
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 |
19 | | */ |
20 | | |
21 | | #include "config_components.h" |
22 | | |
23 | | #include "codec_internal.h" |
24 | | #include "decode.h" |
25 | | #include "encode.h" |
26 | | |
27 | | #if CONFIG_VNULL_DECODER || CONFIG_ANULL_DECODER |
28 | | static int null_decode(AVCodecContext *avctx, AVFrame *frame, |
29 | | int *got_frame, AVPacket *avpkt) |
30 | 360k | { |
31 | 360k | *got_frame = 0; |
32 | 360k | return avpkt->size; |
33 | 360k | } |
34 | | |
35 | | #if CONFIG_VNULL_DECODER |
36 | | const FFCodec ff_vnull_decoder = { |
37 | | .p.name = "vnull", |
38 | | CODEC_LONG_NAME("null video"), |
39 | | .p.type = AVMEDIA_TYPE_VIDEO, |
40 | | .p.id = AV_CODEC_ID_VNULL, |
41 | | .p.capabilities = AV_CODEC_CAP_DR1, |
42 | | FF_CODEC_DECODE_CB(null_decode), |
43 | | }; |
44 | | #endif |
45 | | |
46 | | #if CONFIG_ANULL_DECODER |
47 | | const FFCodec ff_anull_decoder = { |
48 | | .p.name = "anull", |
49 | | CODEC_LONG_NAME("null audio"), |
50 | | .p.type = AVMEDIA_TYPE_AUDIO, |
51 | | .p.id = AV_CODEC_ID_ANULL, |
52 | | .p.capabilities = AV_CODEC_CAP_DR1, |
53 | | FF_CODEC_DECODE_CB(null_decode), |
54 | | }; |
55 | | #endif |
56 | | |
57 | | #endif |
58 | | |
59 | | #if CONFIG_VNULL_ENCODER || CONFIG_ANULL_ENCODER |
60 | | static int null_encode(AVCodecContext *avctx, AVPacket *pkt, |
61 | | const AVFrame *frame, int *got_packet) |
62 | 5.29k | { |
63 | 5.29k | *got_packet = 0; |
64 | 5.29k | return 0; |
65 | 5.29k | } |
66 | | |
67 | | #if CONFIG_VNULL_ENCODER |
68 | | const FFCodec ff_vnull_encoder = { |
69 | | .p.name = "vnull", |
70 | | CODEC_LONG_NAME("null video"), |
71 | | .p.type = AVMEDIA_TYPE_VIDEO, |
72 | | .p.id = AV_CODEC_ID_VNULL, |
73 | | FF_CODEC_ENCODE_CB(null_encode), |
74 | | }; |
75 | | #endif |
76 | | |
77 | | #if CONFIG_ANULL_ENCODER |
78 | | const FFCodec ff_anull_encoder = { |
79 | | .p.name = "anull", |
80 | | CODEC_LONG_NAME("null audio"), |
81 | | .p.type = AVMEDIA_TYPE_AUDIO, |
82 | | .p.id = AV_CODEC_ID_ANULL, |
83 | | .p.capabilities = AV_CODEC_CAP_VARIABLE_FRAME_SIZE, |
84 | | CODEC_SAMPLEFMTS(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_U8P, |
85 | | AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16P, |
86 | | AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S32P, |
87 | | AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S64P, |
88 | | AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLTP, |
89 | | AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_DBLP), |
90 | | FF_CODEC_ENCODE_CB(null_encode), |
91 | | }; |
92 | | #endif |
93 | | |
94 | | #endif |