| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * This file is part of FFmpeg. | ||
| 3 | * | ||
| 4 | * FFmpeg is free software; you can redistribute it and/or | ||
| 5 | * modify it under the terms of the GNU Lesser General Public | ||
| 6 | * License as published by the Free Software Foundation; either | ||
| 7 | * version 2.1 of the License, or (at your option) any later version. | ||
| 8 | * | ||
| 9 | * FFmpeg is distributed in the hope that it will be useful, | ||
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 12 | * Lesser General Public License for more details. | ||
| 13 | * | ||
| 14 | * You should have received a copy of the GNU Lesser General Public | ||
| 15 | * License along with FFmpeg; if not, write to the Free Software | ||
| 16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 17 | */ | ||
| 18 | |||
| 19 | #include "internal.h" | ||
| 20 | #include "libavutil/mem.h" | ||
| 21 | #include "libavutil/opt.h" | ||
| 22 | #include "libavformat/avformat.h" | ||
| 23 | #include "libavformat/demux.h" | ||
| 24 | |||
| 25 | ✗ | int ff_alloc_input_device_context(AVFormatContext **avctx, const AVInputFormat *iformat, const char *format) | |
| 26 | { | ||
| 27 | AVFormatContext *s; | ||
| 28 | ✗ | int ret = 0; | |
| 29 | |||
| 30 | ✗ | *avctx = NULL; | |
| 31 | ✗ | if (!iformat && !format) | |
| 32 | ✗ | return AVERROR(EINVAL); | |
| 33 | ✗ | if (!(s = avformat_alloc_context())) | |
| 34 | ✗ | return AVERROR(ENOMEM); | |
| 35 | |||
| 36 | ✗ | if (!iformat) | |
| 37 | ✗ | iformat = av_find_input_format(format); | |
| 38 | ✗ | if (!iformat || !iformat->priv_class || !AV_IS_INPUT_DEVICE(iformat->priv_class->category)) { | |
| 39 | ✗ | ret = AVERROR(EINVAL); | |
| 40 | ✗ | goto error; | |
| 41 | } | ||
| 42 | ✗ | s->iformat = iformat; | |
| 43 | ✗ | if (ffifmt(s->iformat)->priv_data_size > 0) { | |
| 44 | ✗ | s->priv_data = av_mallocz(ffifmt(s->iformat)->priv_data_size); | |
| 45 | ✗ | if (!s->priv_data) { | |
| 46 | ✗ | ret = AVERROR(ENOMEM); | |
| 47 | ✗ | goto error; | |
| 48 | } | ||
| 49 | ✗ | if (s->iformat->priv_class) { | |
| 50 | ✗ | *(const AVClass**)s->priv_data= s->iformat->priv_class; | |
| 51 | ✗ | av_opt_set_defaults(s->priv_data); | |
| 52 | } | ||
| 53 | } else | ||
| 54 | ✗ | s->priv_data = NULL; | |
| 55 | |||
| 56 | ✗ | *avctx = s; | |
| 57 | ✗ | return 0; | |
| 58 | ✗ | error: | |
| 59 | ✗ | avformat_free_context(s); | |
| 60 | ✗ | return ret; | |
| 61 | } | ||
| 62 |