mirror of
https://gitlab.freedesktop.org/pipewire/pipewire.git
synced 2025-11-03 09:01:54 -05:00
6fb0f580ea
Make new enumeration for data transport status and use errno style error numbers for errors.
115 lines
3 KiB
C
115 lines
3 KiB
C
/* Spa V4l2 support
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* Copyright (C) 2016 Wim Taymans <wim.taymans@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include <errno.h>
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#include <stdio.h>
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#include <spa/support/plugin.h>
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#include <spa/node/node.h>
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#include <libavcodec/avcodec.h>
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#include <libavformat/avformat.h>
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int spa_ffmpeg_dec_init(struct spa_handle *handle, const struct spa_dict *info,
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const struct spa_support *support, uint32_t n_support);
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int spa_ffmpeg_enc_init(struct spa_handle *handle, const struct spa_dict *info,
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const struct spa_support *support, uint32_t n_support);
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static int
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ffmpeg_dec_init(const struct spa_handle_factory *factory,
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struct spa_handle *handle,
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const struct spa_dict *info,
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const struct spa_support *support,
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uint32_t n_support)
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{
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if (factory == NULL || handle == NULL)
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return -EINVAL;
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return spa_ffmpeg_dec_init(handle, info, support, n_support);
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}
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static int
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ffmpeg_enc_init(const struct spa_handle_factory *factory,
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struct spa_handle *handle,
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const struct spa_dict *info,
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const struct spa_support *support,
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uint32_t n_support)
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{
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if (factory == NULL || handle == NULL)
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return -EINVAL;
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return spa_ffmpeg_enc_init(handle, info, support, n_support);
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}
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static const struct spa_interface_info ffmpeg_interfaces[] = {
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{SPA_TYPE__Node, },
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};
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static int
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ffmpeg_enum_interface_info(const struct spa_handle_factory *factory,
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const struct spa_interface_info **info,
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uint32_t *index)
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{
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if (factory == NULL || info == NULL || index == NULL)
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return -EINVAL;
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if (*index < SPA_N_ELEMENTS(ffmpeg_interfaces))
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*info = &ffmpeg_interfaces[(*index)++];
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else
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return 0;
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return 1;
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}
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int spa_handle_factory_enum(const struct spa_handle_factory **factory, uint32_t *index)
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{
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static const AVCodec *c = NULL;
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static int ci = 0;
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static struct spa_handle_factory f;
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static char name[128];
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av_register_all();
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if (*index == 0) {
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c = av_codec_next(NULL);
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ci = 0;
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}
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while (*index > ci && c) {
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c = av_codec_next(c);
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ci++;
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}
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if (c == NULL)
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return 0;
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if (av_codec_is_encoder(c)) {
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snprintf(name, 128, "ffenc_%s", c->name);
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f.init = ffmpeg_enc_init;
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} else {
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snprintf(name, 128, "ffdec_%s", c->name);
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f.init = ffmpeg_dec_init;
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}
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f.name = name;
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f.info = NULL;
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f.enum_interface_info = ffmpeg_enum_interface_info;
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*factory = &f;
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(*index)++;
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return 1;
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}
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