00001 /* 00002 * Copyright 2008-2010 Arsen Chaloyan 00003 * 00004 * Licensed under the Apache License, Version 2.0 (the "License"); 00005 * you may not use this file except in compliance with the License. 00006 * You may obtain a copy of the License at 00007 * 00008 * http://www.apache.org/licenses/LICENSE-2.0 00009 * 00010 * Unless required by applicable law or agreed to in writing, software 00011 * distributed under the License is distributed on an "AS IS" BASIS, 00012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00013 * See the License for the specific language governing permissions and 00014 * limitations under the License. 00015 * 00016 * $Id: mpf_buffer.h 1709 2010-05-24 17:12:11Z achaloyan $ 00017 */ 00018 00019 #ifndef MPF_BUFFER_H 00020 #define MPF_BUFFER_H 00021 00022 /** 00023 * @file mpf_buffer.h 00024 * @brief Buffer of Media Chunks 00025 */ 00026 00027 #include "mpf_frame.h" 00028 00029 APT_BEGIN_EXTERN_C 00030 00031 /** Opaque media buffer declaration */ 00032 typedef struct mpf_buffer_t mpf_buffer_t; 00033 00034 00035 /** Create buffer */ 00036 mpf_buffer_t* mpf_buffer_create(apr_pool_t *pool); 00037 00038 /** Destroy buffer */ 00039 void mpf_buffer_destroy(mpf_buffer_t *buffer); 00040 00041 /** Restart buffer */ 00042 apt_bool_t mpf_buffer_restart(mpf_buffer_t *buffer); 00043 00044 /** Write audio chunk to buffer */ 00045 apt_bool_t mpf_buffer_audio_write(mpf_buffer_t *buffer, void *data, apr_size_t size); 00046 00047 /** Write event to buffer */ 00048 apt_bool_t mpf_buffer_event_write(mpf_buffer_t *buffer, mpf_frame_type_e event_type); 00049 00050 /** Read media frame from buffer */ 00051 apt_bool_t mpf_buffer_frame_read(mpf_buffer_t *buffer, mpf_frame_t *media_frame); 00052 00053 /** Get size of buffer **/ 00054 apr_size_t mpf_buffer_get_size(const mpf_buffer_t *buffer); 00055 00056 APT_END_EXTERN_C 00057 00058 #endif /* MPF_BUFFER_H */