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* Copyright (C) 2014 The Android Open Source Project
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* See the License for the specific language governing permissions and
* limitations under the License.
* This file defines an NDK API.
* Do not remove methods.
* Do not change method signatures.
* Do not change the value of constants.
* Do not change the size of any of the classes defined in here.
* Do not reference types that are not part of the NDK.
* Do not #include files that aren't part of the NDK.
#include <sys/types.h>
#include "NdkMediaCodec.h"
#include "NdkMediaError.h"
#include "NdkMediaFormat.h"
#ifdef __cplusplus
extern "C" {
struct AMediaMuxer;
typedef struct AMediaMuxer AMediaMuxer;
typedef enum {
} OutputFormat;
* Create new media muxer
AMediaMuxer* AMediaMuxer_new(int fd, OutputFormat format);
* Delete a previously created media muxer
media_status_t AMediaMuxer_delete(AMediaMuxer*);
* Set and store the geodata (latitude and longitude) in the output file.
* This method should be called before AMediaMuxer_start. The geodata is stored
* in udta box if the output format is AMEDIAMUXER_OUTPUT_FORMAT_MPEG_4, and is
* ignored for other output formats.
* The geodata is stored according to ISO-6709 standard.
* Both values are specified in degrees.
* Latitude must be in the range [-90, 90].
* Longitude must be in the range [-180, 180].
media_status_t AMediaMuxer_setLocation(AMediaMuxer*, float latitude, float longitude);
* Sets the orientation hint for output video playback.
* This method should be called before AMediaMuxer_start. Calling this
* method will not rotate the video frame when muxer is generating the file,
* but add a composition matrix containing the rotation angle in the output
* video if the output format is AMEDIAMUXER_OUTPUT_FORMAT_MPEG_4, so that a
* video player can choose the proper orientation for playback.
* Note that some video players may choose to ignore the composition matrix
* during playback.
* The angle is specified in degrees, clockwise.
* The supported angles are 0, 90, 180, and 270 degrees.
media_status_t AMediaMuxer_setOrientationHint(AMediaMuxer*, int degrees);
* Adds a track with the specified format.
* Returns the index of the new track or a negative value in case of failure,
* which can be interpreted as a media_status_t.
ssize_t AMediaMuxer_addTrack(AMediaMuxer*, const AMediaFormat* format);
* Start the muxer. Should be called after AMediaMuxer_addTrack and
* before AMediaMuxer_writeSampleData.
media_status_t AMediaMuxer_start(AMediaMuxer*);
* Stops the muxer.
* Once the muxer stops, it can not be restarted.
media_status_t AMediaMuxer_stop(AMediaMuxer*);
* Writes an encoded sample into the muxer.
* The application needs to make sure that the samples are written into
* the right tracks. Also, it needs to make sure the samples for each track
* are written in chronological order (e.g. in the order they are provided
* by the encoder.)
media_status_t AMediaMuxer_writeSampleData(AMediaMuxer *muxer,
size_t trackIdx, const uint8_t *data, const AMediaCodecBufferInfo *info);
#ifdef __cplusplus
} // extern "C"
#endif // _NDK_MEDIA_MUXER_H