101 lines
3.5 KiB
C
101 lines
3.5 KiB
C
/*
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* NUTTX input and output
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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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/**
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* @file
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* NUTTX input and output: definitions and structures
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*/
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#ifndef AVDEVICE_NUTTX_H
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#define AVDEVICE_NUTTX_H
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#include <nuttx/config.h>
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#include <nuttx/audio/audio.h>
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#include <mqueue.h>
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#include "libavutil/log.h"
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#include "libavformat/avformat.h"
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#include "avdevice.h"
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typedef struct NuttxPriv {
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AVClass *class;
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bool playback;
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bool nonblock;
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bool stopped; ///< stop required by apps
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bool running;
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bool draining;
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bool paused;
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bool ioerr;
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char devname[32]; ///< device name
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char mqname[32]; ///< message queue name
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int fd; ///< nuttx device fd
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mqd_t mq; ///< message queue
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int periods; ///< buffer pereids
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int period_bytes; ///< preferred size for reads and writes, in bytes
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int period_time; ///< preferred time for reads and writes, in ms
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int codec; ///< codec id
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int format; ///< sample format
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int sample_bytes; ///< bytes per sample * channels
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uint32_t sample_rate;
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AVChannelLayout ch_layout;
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bool mute;
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double volume;
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dq_queue_t bufferq;
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AVPacket *lastpkt;
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int64_t timestamp;
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} NuttxPriv;
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int ff_nuttx_capbility_query_ranges(struct AVOptionRanges **ranges_, const char *device,
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const char *key, int flags, bool playback);
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int ff_nuttx_get_device_list(struct AVDeviceInfoList *device_list, bool playback);
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int ff_nuttx_init(NuttxPriv *priv, const char *device, bool playback);
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void ff_nuttx_deinit(NuttxPriv *priv);
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int ff_nuttx_open(NuttxPriv *priv);
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void ff_nuttx_close(NuttxPriv *priv, bool nonblock);
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#define ff_nuttx_close(priv) ff_nuttx_close(priv, (priv)->nonblock)
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int ff_nuttx_set_parameter(NuttxPriv *priv, const char *parameter);
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int ff_nuttx_poll_available(NuttxPriv *priv, bool nonblock);
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#define ff_nuttx_poll_available(priv) ff_nuttx_poll_available(priv, true)
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int ff_nuttx_write_data(NuttxPriv *priv, const uint8_t *data, int size);
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int ff_nuttx_read_data(NuttxPriv *priv, uint8_t *data, int size, uint32_t *samples);
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int ff_nuttx_set_volume(struct AVFormatContext *s1, NuttxPriv *priv, double volume);
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int ff_nuttx_set_mute(struct AVFormatContext *s1, NuttxPriv *priv, bool mute);
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int ff_nuttx_notify_changed(struct AVFormatContext *s1, NuttxPriv *priv, bool volume);
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long ff_nuttx_get_latency(NuttxPriv *priv);
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int ff_nuttx_pause(NuttxPriv *priv);
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int ff_nuttx_resume(NuttxPriv *priv);
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int ff_nuttx_flush(NuttxPriv *priv);
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long ff_nuttx_get_position(NuttxPriv *priv);
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#endif /* AVDEVICE_NUTTX_H */
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