X-Git-Url: http://47.100.26.94:8080/?a=blobdiff_plain;f=app%2Fsrc%2Fmain%2Fjni%2Finclude%2Flibavdevice%2Favdevice.h;fp=app%2Fsrc%2Fmain%2Fjni%2Finclude%2Flibavdevice%2Favdevice.h;h=0000000000000000000000000000000000000000;hb=577426ccc66649228285c4a0b6ba8752836059c6;hp=6b0446cde7cdad751137dad2c69c3fe59abc0ff7;hpb=b7202442677d0cf41e6e59870cd6c34e5619b8b9;p=rtmpclient.git diff --git a/app/src/main/jni/include/libavdevice/avdevice.h b/app/src/main/jni/include/libavdevice/avdevice.h deleted file mode 100644 index 6b0446c..0000000 --- a/app/src/main/jni/include/libavdevice/avdevice.h +++ /dev/null @@ -1,509 +0,0 @@ -/* - * 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 - */ - -#ifndef AVDEVICE_AVDEVICE_H -#define AVDEVICE_AVDEVICE_H - -#include "version.h" - -/** - * @file - * @ingroup lavd - * Main libavdevice API header - */ - -/** - * @defgroup lavd Special devices muxing/demuxing library - * @{ - * Libavdevice is a complementary library to @ref libavf "libavformat". It - * provides various "special" platform-specific muxers and demuxers, e.g. for - * grabbing devices, audio capture and playback etc. As a consequence, the - * (de)muxers in libavdevice are of the AVFMT_NOFILE type (they use their own - * I/O functions). The filename passed to avformat_open_input() often does not - * refer to an actually existing file, but has some special device-specific - * meaning - e.g. for x11grab it is the display name. - * - * To use libavdevice, simply call avdevice_register_all() to register all - * compiled muxers and demuxers. They all use standard libavformat API. - * @} - */ - -#include "libavutil/log.h" -#include "libavutil/opt.h" -#include "libavutil/dict.h" -#include "libavformat/avformat.h" - -/** - * Return the LIBAVDEVICE_VERSION_INT constant. - */ -unsigned avdevice_version(void); - -/** - * Return the libavdevice build-time configuration. - */ -const char *avdevice_configuration(void); - -/** - * Return the libavdevice license. - */ -const char *avdevice_license(void); - -/** - * Initialize libavdevice and register all the input and output devices. - * @warning This function is not thread safe. - */ -void avdevice_register_all(void); - -/** - * Audio input devices iterator. - * - * If d is NULL, returns the first registered input audio/video device, - * if d is non-NULL, returns the next registered input audio/video device after d - * or NULL if d is the last one. - */ -AVInputFormat *av_input_audio_device_next(AVInputFormat *d); - -/** - * Video input devices iterator. - * - * If d is NULL, returns the first registered input audio/video device, - * if d is non-NULL, returns the next registered input audio/video device after d - * or NULL if d is the last one. - */ -AVInputFormat *av_input_video_device_next(AVInputFormat *d); - -/** - * Audio output devices iterator. - * - * If d is NULL, returns the first registered output audio/video device, - * if d is non-NULL, returns the next registered output audio/video device after d - * or NULL if d is the last one. - */ -AVOutputFormat *av_output_audio_device_next(AVOutputFormat *d); - -/** - * Video output devices iterator. - * - * If d is NULL, returns the first registered output audio/video device, - * if d is non-NULL, returns the next registered output audio/video device after d - * or NULL if d is the last one. - */ -AVOutputFormat *av_output_video_device_next(AVOutputFormat *d); - -typedef struct AVDeviceRect { - int x; /**< x coordinate of top left corner */ - int y; /**< y coordinate of top left corner */ - int width; /**< width */ - int height; /**< height */ -} AVDeviceRect; - -/** - * Message types used by avdevice_app_to_dev_control_message(). - */ -enum AVAppToDevMessageType { - /** - * Dummy message. - */ - AV_APP_TO_DEV_NONE = MKBETAG('N','O','N','E'), - - /** - * Window size change message. - * - * Message is sent to the device every time the application changes the size - * of the window device renders to. - * Message should also be sent right after window is created. - * - * data: AVDeviceRect: new window size. - */ - AV_APP_TO_DEV_WINDOW_SIZE = MKBETAG('G','E','O','M'), - - /** - * Repaint request message. - * - * Message is sent to the device when window has to be repainted. - * - * data: AVDeviceRect: area required to be repainted. - * NULL: whole area is required to be repainted. - */ - AV_APP_TO_DEV_WINDOW_REPAINT = MKBETAG('R','E','P','A'), - - /** - * Request pause/play. - * - * Application requests pause/unpause playback. - * Mostly usable with devices that have internal buffer. - * By default devices are not paused. - * - * data: NULL - */ - AV_APP_TO_DEV_PAUSE = MKBETAG('P', 'A', 'U', ' '), - AV_APP_TO_DEV_PLAY = MKBETAG('P', 'L', 'A', 'Y'), - AV_APP_TO_DEV_TOGGLE_PAUSE = MKBETAG('P', 'A', 'U', 'T'), - - /** - * Volume control message. - * - * Set volume level. It may be device-dependent if volume - * is changed per stream or system wide. Per stream volume - * change is expected when possible. - * - * data: double: new volume with range of 0.0 - 1.0. - */ - AV_APP_TO_DEV_SET_VOLUME = MKBETAG('S', 'V', 'O', 'L'), - - /** - * Mute control messages. - * - * Change mute state. It may be device-dependent if mute status - * is changed per stream or system wide. Per stream mute status - * change is expected when possible. - * - * data: NULL. - */ - AV_APP_TO_DEV_MUTE = MKBETAG(' ', 'M', 'U', 'T'), - AV_APP_TO_DEV_UNMUTE = MKBETAG('U', 'M', 'U', 'T'), - AV_APP_TO_DEV_TOGGLE_MUTE = MKBETAG('T', 'M', 'U', 'T'), - - /** - * Get volume/mute messages. - * - * Force the device to send AV_DEV_TO_APP_VOLUME_LEVEL_CHANGED or - * AV_DEV_TO_APP_MUTE_STATE_CHANGED command respectively. - * - * data: NULL. - */ - AV_APP_TO_DEV_GET_VOLUME = MKBETAG('G', 'V', 'O', 'L'), - AV_APP_TO_DEV_GET_MUTE = MKBETAG('G', 'M', 'U', 'T'), -}; - -/** - * Message types used by avdevice_dev_to_app_control_message(). - */ -enum AVDevToAppMessageType { - /** - * Dummy message. - */ - AV_DEV_TO_APP_NONE = MKBETAG('N','O','N','E'), - - /** - * Create window buffer message. - * - * Device requests to create a window buffer. Exact meaning is device- - * and application-dependent. Message is sent before rendering first - * frame and all one-shot initializations should be done here. - * Application is allowed to ignore preferred window buffer size. - * - * @note: Application is obligated to inform about window buffer size - * with AV_APP_TO_DEV_WINDOW_SIZE message. - * - * data: AVDeviceRect: preferred size of the window buffer. - * NULL: no preferred size of the window buffer. - */ - AV_DEV_TO_APP_CREATE_WINDOW_BUFFER = MKBETAG('B','C','R','E'), - - /** - * Prepare window buffer message. - * - * Device requests to prepare a window buffer for rendering. - * Exact meaning is device- and application-dependent. - * Message is sent before rendering of each frame. - * - * data: NULL. - */ - AV_DEV_TO_APP_PREPARE_WINDOW_BUFFER = MKBETAG('B','P','R','E'), - - /** - * Display window buffer message. - * - * Device requests to display a window buffer. - * Message is sent when new frame is ready to be displayed. - * Usually buffers need to be swapped in handler of this message. - * - * data: NULL. - */ - AV_DEV_TO_APP_DISPLAY_WINDOW_BUFFER = MKBETAG('B','D','I','S'), - - /** - * Destroy window buffer message. - * - * Device requests to destroy a window buffer. - * Message is sent when device is about to be destroyed and window - * buffer is not required anymore. - * - * data: NULL. - */ - AV_DEV_TO_APP_DESTROY_WINDOW_BUFFER = MKBETAG('B','D','E','S'), - - /** - * Buffer fullness status messages. - * - * Device signals buffer overflow/underflow. - * - * data: NULL. - */ - AV_DEV_TO_APP_BUFFER_OVERFLOW = MKBETAG('B','O','F','L'), - AV_DEV_TO_APP_BUFFER_UNDERFLOW = MKBETAG('B','U','F','L'), - - /** - * Buffer readable/writable. - * - * Device informs that buffer is readable/writable. - * When possible, device informs how many bytes can be read/write. - * - * @warning Device may not inform when number of bytes than can be read/write changes. - * - * data: int64_t: amount of bytes available to read/write. - * NULL: amount of bytes available to read/write is not known. - */ - AV_DEV_TO_APP_BUFFER_READABLE = MKBETAG('B','R','D',' '), - AV_DEV_TO_APP_BUFFER_WRITABLE = MKBETAG('B','W','R',' '), - - /** - * Mute state change message. - * - * Device informs that mute state has changed. - * - * data: int: 0 for not muted state, non-zero for muted state. - */ - AV_DEV_TO_APP_MUTE_STATE_CHANGED = MKBETAG('C','M','U','T'), - - /** - * Volume level change message. - * - * Device informs that volume level has changed. - * - * data: double: new volume with range of 0.0 - 1.0. - */ - AV_DEV_TO_APP_VOLUME_LEVEL_CHANGED = MKBETAG('C','V','O','L'), -}; - -/** - * Send control message from application to device. - * - * @param s device context. - * @param type message type. - * @param data message data. Exact type depends on message type. - * @param data_size size of message data. - * @return >= 0 on success, negative on error. - * AVERROR(ENOSYS) when device doesn't implement handler of the message. - */ -int avdevice_app_to_dev_control_message(struct AVFormatContext *s, - enum AVAppToDevMessageType type, - void *data, size_t data_size); - -/** - * Send control message from device to application. - * - * @param s device context. - * @param type message type. - * @param data message data. Can be NULL. - * @param data_size size of message data. - * @return >= 0 on success, negative on error. - * AVERROR(ENOSYS) when application doesn't implement handler of the message. - */ -int avdevice_dev_to_app_control_message(struct AVFormatContext *s, - enum AVDevToAppMessageType type, - void *data, size_t data_size); - -/** - * Following API allows user to probe device capabilities (supported codecs, - * pixel formats, sample formats, resolutions, channel counts, etc). - * It is build on top op AVOption API. - * Queried capabilities make it possible to set up converters of video or audio - * parameters that fit to the device. - * - * List of capabilities that can be queried: - * - Capabilities valid for both audio and video devices: - * - codec: supported audio/video codecs. - * type: AV_OPT_TYPE_INT (AVCodecID value) - * - Capabilities valid for audio devices: - * - sample_format: supported sample formats. - * type: AV_OPT_TYPE_INT (AVSampleFormat value) - * - sample_rate: supported sample rates. - * type: AV_OPT_TYPE_INT - * - channels: supported number of channels. - * type: AV_OPT_TYPE_INT - * - channel_layout: supported channel layouts. - * type: AV_OPT_TYPE_INT64 - * - Capabilities valid for video devices: - * - pixel_format: supported pixel formats. - * type: AV_OPT_TYPE_INT (AVPixelFormat value) - * - window_size: supported window sizes (describes size of the window size presented to the user). - * type: AV_OPT_TYPE_IMAGE_SIZE - * - frame_size: supported frame sizes (describes size of provided video frames). - * type: AV_OPT_TYPE_IMAGE_SIZE - * - fps: supported fps values - * type: AV_OPT_TYPE_RATIONAL - * - * Value of the capability may be set by user using av_opt_set() function - * and AVDeviceCapabilitiesQuery object. Following queries will - * limit results to the values matching already set capabilities. - * For example, setting a codec may impact number of formats or fps values - * returned during next query. Setting invalid value may limit results to zero. - * - * Example of the usage basing on opengl output device: - * - * @code - * AVFormatContext *oc = NULL; - * AVDeviceCapabilitiesQuery *caps = NULL; - * AVOptionRanges *ranges; - * int ret; - * - * if ((ret = avformat_alloc_output_context2(&oc, NULL, "opengl", NULL)) < 0) - * goto fail; - * if (avdevice_capabilities_create(&caps, oc, NULL) < 0) - * goto fail; - * - * //query codecs - * if (av_opt_query_ranges(&ranges, caps, "codec", AV_OPT_MULTI_COMPONENT_RANGE)) < 0) - * goto fail; - * //pick codec here and set it - * av_opt_set(caps, "codec", AV_CODEC_ID_RAWVIDEO, 0); - * - * //query format - * if (av_opt_query_ranges(&ranges, caps, "pixel_format", AV_OPT_MULTI_COMPONENT_RANGE)) < 0) - * goto fail; - * //pick format here and set it - * av_opt_set(caps, "pixel_format", AV_PIX_FMT_YUV420P, 0); - * - * //query and set more capabilities - * - * fail: - * //clean up code - * avdevice_capabilities_free(&query, oc); - * avformat_free_context(oc); - * @endcode - */ - -/** - * Structure describes device capabilities. - * - * It is used by devices in conjunction with av_device_capabilities AVOption table - * to implement capabilities probing API based on AVOption API. Should not be used directly. - */ -typedef struct AVDeviceCapabilitiesQuery { - const AVClass *av_class; - AVFormatContext *device_context; - enum AVCodecID codec; - enum AVSampleFormat sample_format; - enum AVPixelFormat pixel_format; - int sample_rate; - int channels; - int64_t channel_layout; - int window_width; - int window_height; - int frame_width; - int frame_height; - AVRational fps; -} AVDeviceCapabilitiesQuery; - -/** - * AVOption table used by devices to implement device capabilities API. Should not be used by a user. - */ -extern const AVOption av_device_capabilities[]; - -/** - * Initialize capabilities probing API based on AVOption API. - * - * avdevice_capabilities_free() must be called when query capabilities API is - * not used anymore. - * - * @param[out] caps Device capabilities data. Pointer to a NULL pointer must be passed. - * @param s Context of the device. - * @param device_options An AVDictionary filled with device-private options. - * On return this parameter will be destroyed and replaced with a dict - * containing options that were not found. May be NULL. - * The same options must be passed later to avformat_write_header() for output - * devices or avformat_open_input() for input devices, or at any other place - * that affects device-private options. - * - * @return >= 0 on success, negative otherwise. - */ -int avdevice_capabilities_create(AVDeviceCapabilitiesQuery **caps, AVFormatContext *s, - AVDictionary **device_options); - -/** - * Free resources created by avdevice_capabilities_create() - * - * @param caps Device capabilities data to be freed. - * @param s Context of the device. - */ -void avdevice_capabilities_free(AVDeviceCapabilitiesQuery **caps, AVFormatContext *s); - -/** - * Structure describes basic parameters of the device. - */ -typedef struct AVDeviceInfo { - char *device_name; /**< device name, format depends on device */ - char *device_description; /**< human friendly name */ -} AVDeviceInfo; - -/** - * List of devices. - */ -typedef struct AVDeviceInfoList { - AVDeviceInfo **devices; /**< list of autodetected devices */ - int nb_devices; /**< number of autodetected devices */ - int default_device; /**< index of default device or -1 if no default */ -} AVDeviceInfoList; - -/** - * List devices. - * - * Returns available device names and their parameters. - * - * @note: Some devices may accept system-dependent device names that cannot be - * autodetected. The list returned by this function cannot be assumed to - * be always completed. - * - * @param s device context. - * @param[out] device_list list of autodetected devices. - * @return count of autodetected devices, negative on error. - */ -int avdevice_list_devices(struct AVFormatContext *s, AVDeviceInfoList **device_list); - -/** - * Convenient function to free result of avdevice_list_devices(). - * - * @param devices device list to be freed. - */ -void avdevice_free_list_devices(AVDeviceInfoList **device_list); - -/** - * List devices. - * - * Returns available device names and their parameters. - * These are convinient wrappers for avdevice_list_devices(). - * Device context is allocated and deallocated internally. - * - * @param device device format. May be NULL if device name is set. - * @param device_name device name. May be NULL if device format is set. - * @param device_options An AVDictionary filled with device-private options. May be NULL. - * The same options must be passed later to avformat_write_header() for output - * devices or avformat_open_input() for input devices, or at any other place - * that affects device-private options. - * @param[out] device_list list of autodetected devices - * @return count of autodetected devices, negative on error. - * @note device argument takes precedence over device_name when both are set. - */ -int avdevice_list_input_sources(struct AVInputFormat *device, const char *device_name, - AVDictionary *device_options, AVDeviceInfoList **device_list); -int avdevice_list_output_sinks(struct AVOutputFormat *device, const char *device_name, - AVDictionary *device_options, AVDeviceInfoList **device_list); - -#endif /* AVDEVICE_AVDEVICE_H */