mirror of https://git.ffmpeg.org/ffmpeg.git
98 lines
2.8 KiB
C
98 lines
2.8 KiB
C
|
/*
|
||
|
|
* Null codecs
|
||
|
|
*
|
||
|
|
* This file is part of FFmpeg.
|
||
|
|
*
|
||
|
|
* FFmpeg is free software; you can redistribute it and/or
|
||
|
|
* modify it under the terms of the GNU Lesser General Public
|
||
|
|
* License as published by the Free Software Foundation; either
|
||
|
|
* version 2.1 of the License, or (at your option) any later version.
|
||
|
|
*
|
||
|
|
* FFmpeg is distributed in the hope that it will be useful,
|
||
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||
|
|
* Lesser General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU Lesser General Public
|
||
|
|
* License along with FFmpeg; if not, write to the Free Software
|
||
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "config_components.h"
|
||
|
|
|
||
|
|
#include "codec_internal.h"
|
||
|
|
#include "decode.h"
|
||
|
|
#include "encode.h"
|
||
|
|
|
||
|
|
#if CONFIG_VNULL_DECODER || CONFIG_ANULL_DECODER
|
||
|
|
static int null_decode(AVCodecContext *avctx, AVFrame *frame,
|
||
|
|
int *got_frame, AVPacket *avpkt)
|
||
|
|
{
|
||
|
|
*got_frame = 0;
|
||
|
|
return avpkt->size;
|
||
|
|
}
|
||
|
|
|
||
|
|
#if CONFIG_VNULL_DECODER
|
||
|
|
const FFCodec ff_vnull_decoder = {
|
||
|
|
.p.name = "vnull",
|
||
|
|
CODEC_LONG_NAME("null video"),
|
||
|
|
.p.type = AVMEDIA_TYPE_VIDEO,
|
||
|
|
.p.id = AV_CODEC_ID_VNULL,
|
||
|
|
.p.capabilities = AV_CODEC_CAP_DR1,
|
||
|
|
FF_CODEC_DECODE_CB(null_decode),
|
||
|
|
};
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if CONFIG_ANULL_DECODER
|
||
|
|
const FFCodec ff_anull_decoder = {
|
||
|
|
.p.name = "anull",
|
||
|
|
CODEC_LONG_NAME("null audio"),
|
||
|
|
.p.type = AVMEDIA_TYPE_AUDIO,
|
||
|
|
.p.id = AV_CODEC_ID_ANULL,
|
||
|
|
.p.capabilities = AV_CODEC_CAP_DR1,
|
||
|
|
FF_CODEC_DECODE_CB(null_decode),
|
||
|
|
};
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if CONFIG_VNULL_ENCODER || CONFIG_ANULL_ENCODER
|
||
|
|
static int null_encode(AVCodecContext *avctx, AVPacket *pkt,
|
||
|
|
const AVFrame *frame, int *got_packet)
|
||
|
|
{
|
||
|
|
*got_packet = 0;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
#if CONFIG_VNULL_ENCODER
|
||
|
|
const FFCodec ff_vnull_encoder = {
|
||
|
|
.p.name = "vnull",
|
||
|
|
CODEC_LONG_NAME("null video"),
|
||
|
|
.p.type = AVMEDIA_TYPE_VIDEO,
|
||
|
|
.p.id = AV_CODEC_ID_VNULL,
|
||
|
|
FF_CODEC_ENCODE_CB(null_encode),
|
||
|
|
};
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if CONFIG_ANULL_ENCODER
|
||
|
|
const FFCodec ff_anull_encoder = {
|
||
|
|
.p.name = "anull",
|
||
|
|
CODEC_LONG_NAME("null audio"),
|
||
|
|
.p.type = AVMEDIA_TYPE_AUDIO,
|
||
|
|
.p.id = AV_CODEC_ID_ANULL,
|
||
|
|
.p.capabilities = AV_CODEC_CAP_VARIABLE_FRAME_SIZE,
|
||
|
|
.p.sample_fmts = (const enum AVSampleFormat[]){
|
||
|
|
AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_U8P,
|
||
|
|
AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16P,
|
||
|
|
AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S32P,
|
||
|
|
AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S64P,
|
||
|
|
AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLTP,
|
||
|
|
AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_DBLP,
|
||
|
|
AV_SAMPLE_FMT_NONE,
|
||
|
|
},
|
||
|
|
FF_CODEC_ENCODE_CB(null_encode),
|
||
|
|
};
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif
|