mirror of
https://github.com/FFmpeg/FFmpeg.git
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98 lines
2.8 KiB
C
98 lines
2.8 KiB
C
/*
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* Null codecs
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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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#include "config_components.h"
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#include "codec_internal.h"
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#include "decode.h"
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#include "encode.h"
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#if CONFIG_VNULL_DECODER || CONFIG_ANULL_DECODER
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static int null_decode(AVCodecContext *avctx, AVFrame *frame,
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int *got_frame, AVPacket *avpkt)
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{
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*got_frame = 0;
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return avpkt->size;
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}
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#if CONFIG_VNULL_DECODER
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const FFCodec ff_vnull_decoder = {
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.p.name = "vnull",
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CODEC_LONG_NAME("null video"),
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.p.type = AVMEDIA_TYPE_VIDEO,
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.p.id = AV_CODEC_ID_VNULL,
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.p.capabilities = AV_CODEC_CAP_DR1,
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FF_CODEC_DECODE_CB(null_decode),
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};
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#endif
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#if CONFIG_ANULL_DECODER
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const FFCodec ff_anull_decoder = {
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.p.name = "anull",
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CODEC_LONG_NAME("null audio"),
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.p.type = AVMEDIA_TYPE_AUDIO,
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.p.id = AV_CODEC_ID_ANULL,
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.p.capabilities = AV_CODEC_CAP_DR1,
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FF_CODEC_DECODE_CB(null_decode),
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};
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#endif
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#endif
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#if CONFIG_VNULL_ENCODER || CONFIG_ANULL_ENCODER
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static int null_encode(AVCodecContext *avctx, AVPacket *pkt,
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const AVFrame *frame, int *got_packet)
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{
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*got_packet = 0;
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return 0;
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}
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#if CONFIG_VNULL_ENCODER
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const FFCodec ff_vnull_encoder = {
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.p.name = "vnull",
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CODEC_LONG_NAME("null video"),
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.p.type = AVMEDIA_TYPE_VIDEO,
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.p.id = AV_CODEC_ID_VNULL,
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FF_CODEC_ENCODE_CB(null_encode),
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};
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#endif
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#if CONFIG_ANULL_ENCODER
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const FFCodec ff_anull_encoder = {
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.p.name = "anull",
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CODEC_LONG_NAME("null audio"),
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.p.type = AVMEDIA_TYPE_AUDIO,
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.p.id = AV_CODEC_ID_ANULL,
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.p.capabilities = AV_CODEC_CAP_VARIABLE_FRAME_SIZE,
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.p.sample_fmts = (const enum AVSampleFormat[]){
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AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_U8P,
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AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16P,
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AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S32P,
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AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S64P,
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AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLTP,
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AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_DBLP,
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AV_SAMPLE_FMT_NONE,
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},
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FF_CODEC_ENCODE_CB(null_encode),
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};
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#endif
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#endif
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