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| <hr><h1>oscl_media_data.h</h1><a href="oscl__media__data_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 <span class="comment">// -*- c++ -*-</span> |
| 00002 <span class="comment">// = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =</span> |
| 00003 |
| 00004 <span class="comment">// O S C L _ M E D I A _ D A T A</span> |
| 00005 |
| 00006 <span class="comment">// = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =</span> |
| 00007 |
| 00018 <span class="preprocessor">#ifndef OSCL_MEDIA_DATA_H</span> |
| 00019 <span class="preprocessor"></span><span class="preprocessor">#define OSCL_MEDIA_DATA_H</span> |
| 00020 <span class="preprocessor"></span> |
| 00021 <span class="preprocessor">#ifndef OSCL_BASE_H_INCLUDED</span> |
| 00022 <span class="preprocessor"></span><span class="preprocessor">#include "<a class="code" href="oscl__base_8h.html">oscl_base.h</a>"</span> |
| 00023 <span class="preprocessor">#endif</span> |
| 00024 <span class="preprocessor"></span> |
| 00025 <span class="preprocessor">#ifndef OSCL_MEM_BASIC_FUNCTIONS_H_INCLUDED</span> |
| 00026 <span class="preprocessor"></span><span class="preprocessor">#include "<a class="code" href="oscl__mem__basic__functions_8h.html">oscl_mem_basic_functions.h</a>"</span> |
| 00027 <span class="preprocessor">#endif</span> |
| 00028 <span class="preprocessor"></span> |
| 00029 <span class="preprocessor">#ifndef OSCL_MEDIA_STATUS_H_INCLUDED</span> |
| 00030 <span class="preprocessor"></span><span class="preprocessor">#include "<a class="code" href="oscl__media__status_8h.html">oscl_media_status.h</a>"</span> |
| 00031 <span class="preprocessor">#endif</span> |
| 00032 <span class="preprocessor"></span> |
| <a name="l00033"></a><a class="code" href="group__osclutil.html#a1">00033</a> <span class="keyword">typedef</span> void (*<a class="code" href="group__osclutil.html#a1">BufferFreeFuncPtr</a>)(<span class="keywordtype">void</span> *); |
| 00034 |
| <a name="l00035"></a><a class="code" href="group__osclutil.html#a2">00035</a> <span class="keyword">typedef</span> uint32 <a class="code" href="group__osclutil.html#a2">MediaTimestamp</a>; |
| 00036 |
| <a name="l00037"></a><a class="code" href="classMemAllocator.html">00037</a> <span class="keyword">template</span> <<span class="keyword">class</span> T> <span class="keyword">class </span><a class="code" href="classMemAllocator.html">MemAllocator</a> |
| 00038 { |
| 00039 <span class="keyword">public</span>: |
| <a name="l00040"></a><a class="code" href="classMemAllocator.html#s0">00040</a> <span class="keyword">typedef</span> T* <a class="code" href="classMemAllocator.html#s0">pointer</a>; |
| 00041 <span class="comment">// virtual pointer allocate(size_t size, void *hint = 0) = 0;</span> |
| 00042 <span class="keyword">virtual</span> <a class="code" href="classMemAllocator.html#s0">pointer</a> <a class="code" href="classMemAllocator.html#a0">allocate</a>(<span class="keywordtype">void</span> * hint = 0, <span class="keyword">const</span> <span class="keywordtype">int</span> num_reserved_frags = 1) = 0; |
| 00043 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classMemAllocator.html#a1">deallocate</a>(<a class="code" href="classMemAllocator.html#s0">pointer</a> p) = 0; |
| <a name="l00044"></a><a class="code" href="classMemAllocator.html#a2">00044</a> <span class="keyword">virtual</span> <a class="code" href="classMemAllocator.html#a2">~MemAllocator</a>() {} |
| 00045 }; |
| 00046 |
| 00047 <span class="keyword">class </span><a class="code" href="classBufferState.html">BufferState</a>; |
| 00048 <span class="comment">/* Buffer referee (how about the "whistle blower" ?*/</span> |
| <a name="l00049"></a><a class="code" href="classBufferMgr.html">00049</a> <span class="keyword">class </span><a class="code" href="classBufferMgr.html">BufferMgr</a> |
| 00050 { |
| 00051 <span class="keyword">public</span>: |
| 00052 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classBufferMgr.html#a0">BufferReleased</a>(<span class="keywordtype">void</span>* ptr, <a class="code" href="classBufferState.html">BufferState</a>* state = <a class="code" href="group__osclbase.html#a81">NULL</a>) = 0; |
| <a name="l00053"></a><a class="code" href="classBufferMgr.html#a1">00053</a> <span class="keyword">virtual</span> <a class="code" href="classBufferMgr.html#a1">~BufferMgr</a>() {} |
| 00054 }; |
| 00055 |
| 00056 |
| <a name="l00057"></a><a class="code" href="classBufferState.html">00057</a> <span class="keyword">class </span><a class="code" href="classBufferState.html">BufferState</a> |
| 00058 { |
| 00059 <span class="keyword">public</span>: |
| <a name="l00060"></a><a class="code" href="classBufferState.html#a0">00060</a> <a class="code" href="classBufferState.html#a0">BufferState</a>(<a class="code" href="group__osclutil.html#a1">BufferFreeFuncPtr</a> the_free_function, <span class="keywordtype">void</span> *bufptr = 0) : |
| 00061 refcount(0), ptr(bufptr), free_function(the_free_function), buf_mgr(0) {}; |
| 00062 |
| <a name="l00063"></a><a class="code" href="classBufferState.html#a1">00063</a> <a class="code" href="classBufferState.html#a0">BufferState</a>(<a class="code" href="classBufferMgr.html">BufferMgr</a>* the_buf_mgr = 0, <span class="keywordtype">void</span> *bufptr = 0) : |
| 00064 refcount(0), ptr(bufptr), free_function(0), buf_mgr(the_buf_mgr) {}; |
| 00065 |
| <a name="l00066"></a><a class="code" href="classBufferState.html#a2">00066</a> <span class="keywordtype">void</span> <a class="code" href="classBufferState.html#a2">increment_refcnt</a>() |
| 00067 { |
| 00068 ++refcount; |
| 00069 }; |
| <a name="l00070"></a><a class="code" href="classBufferState.html#a3">00070</a> <span class="keywordtype">void</span> <a class="code" href="classBufferState.html#a3">decrement_refcnt</a>() |
| 00071 { |
| 00072 <span class="keywordflow">if</span> (!(--refcount)) |
| 00073 { |
| 00074 <span class="keywordflow">if</span> (buf_mgr) buf_mgr-><a class="code" href="classBufferMgr.html#a0">BufferReleased</a>(ptr, <span class="keyword">this</span>); |
| 00075 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (free_function) |
| 00076 { |
| 00077 free_function(ptr); |
| 00078 ptr = 0; |
| 00079 } |
| 00080 } |
| 00081 }; |
| 00082 |
| <a name="l00083"></a><a class="code" href="classBufferState.html#a4">00083</a> <span class="keywordtype">void</span> <a class="code" href="classBufferState.html#a4">bind</a>(<span class="keywordtype">void</span> *in_ptr, <a class="code" href="group__osclutil.html#a1">BufferFreeFuncPtr</a> in_free_function) |
| 00084 { |
| 00085 refcount = 0; |
| 00086 ptr = in_ptr, free_function = in_free_function; |
| 00087 |
| 00088 }; |
| <a name="l00089"></a><a class="code" href="classBufferState.html#a5">00089</a> <span class="keywordtype">void</span> <a class="code" href="classBufferState.html#a4">bind</a>(<span class="keywordtype">void</span> *in_ptr, <a class="code" href="classBufferMgr.html">BufferMgr</a>* in_buf_mgr) |
| 00090 { |
| 00091 refcount = 0; |
| 00092 ptr = in_ptr, buf_mgr = in_buf_mgr; |
| 00093 }; |
| 00094 |
| <a name="l00095"></a><a class="code" href="classBufferState.html#a6">00095</a> <span class="keywordtype">void</span> *<a class="code" href="classBufferState.html#a6">get_ptr</a>() |
| 00096 { |
| 00097 <span class="keywordflow">return</span> ptr; |
| 00098 }; |
| <a name="l00099"></a><a class="code" href="classBufferState.html#a7">00099</a> int32 <a class="code" href="classBufferState.html#a7">get_refcount</a>() |
| 00100 { |
| 00101 <span class="keywordflow">return</span> refcount; |
| 00102 }; |
| 00103 |
| <a name="l00104"></a><a class="code" href="classBufferState.html#a8">00104</a> <a class="code" href="group__osclutil.html#a1">BufferFreeFuncPtr</a> <a class="code" href="classBufferState.html#a8">get_free_function</a>() |
| 00105 { |
| 00106 <span class="keywordflow">return</span> free_function; |
| 00107 }; |
| <a name="l00108"></a><a class="code" href="classBufferState.html#a9">00108</a> <a class="code" href="classBufferMgr.html">BufferMgr</a>* <a class="code" href="classBufferState.html#a9">get_buf_mgr</a>() |
| 00109 { |
| 00110 <span class="keywordflow">return</span> buf_mgr; |
| 00111 }; |
| 00112 |
| <a name="l00113"></a><a class="code" href="classBufferState.html#a10">00113</a> <span class="keywordtype">void</span> <a class="code" href="classBufferState.html#a10">reset</a>() |
| 00114 { |
| 00115 refcount = 0; |
| 00116 ptr = 0; |
| 00117 }; |
| 00118 |
| 00119 <span class="keyword">private</span>: |
| 00120 int32 refcount; |
| 00121 <span class="keywordtype">void</span> *ptr; |
| 00122 <a class="code" href="group__osclutil.html#a1">BufferFreeFuncPtr</a> free_function; <span class="comment">// called to free the buffer</span> |
| 00123 <a class="code" href="classBufferMgr.html">BufferMgr</a>* buf_mgr; <span class="comment">// called to free the buffer</span> |
| 00124 }; |
| 00125 |
| 00126 |
| 00127 <span class="comment">// BufferFragment is a special case of a memory</span> |
| 00128 <span class="comment">// fragment since it refers to fragments of a reference</span> |
| 00129 <span class="comment">// counted memory. The name is used to make this explicit.</span> |
| <a name="l00130"></a><a class="code" href="classBufferFragment.html">00130</a> <span class="keyword">class </span><a class="code" href="classBufferFragment.html">BufferFragment</a> : <span class="keyword">public</span> <a class="code" href="structOsclMemoryFragment.html">OsclMemoryFragment</a> {}; |
| 00131 |
| 00132 |
| <a name="l00133"></a><a class="code" href="classBufFragGroup.html">00133</a> <span class="keyword">template</span> <<span class="keyword">class</span> ChainClass, u<span class="keywordtype">int</span>32 max_frags> <span class="keyword">class </span><a class="code" href="classBufFragGroup.html">BufFragGroup</a> |
| 00134 { |
| 00135 <span class="keyword">public</span>: |
| 00136 |
| 00137 |
| <a name="l00138"></a><a class="code" href="classBufFragGroup.html#a0">00138</a> <a class="code" href="classBufFragGroup.html#a0">BufFragGroup</a>(): <a class="code" href="classBufFragGroup.html#n2">next</a>(0), <a class="code" href="classBufFragGroup.html#n3">num_fragments</a>(0), <a class="code" href="classBufFragGroup.html#n4">length</a>(0) |
| 00139 { |
| 00140 <a class="code" href="group__osclmemory.html#a14">oscl_memset</a>(<a class="code" href="classBufFragGroup.html#n0">fragments</a>, 0, <span class="keyword">sizeof</span>(<a class="code" href="classBufFragGroup.html#n0">fragments</a>)); |
| 00141 <a class="code" href="group__osclmemory.html#a14">oscl_memset</a>(<a class="code" href="classBufFragGroup.html#n1">buffer_states</a>, 0, <span class="keyword">sizeof</span>(<a class="code" href="classBufFragGroup.html#n1">buffer_states</a>)); |
| 00142 }; |
| 00143 |
| <a name="l00144"></a><a class="code" href="classBufFragGroup.html#a1">00144</a> <span class="keyword">virtual</span> <a class="code" href="classBufFragGroup.html#a1">~BufFragGroup</a>() {} |
| 00145 |
| <a name="l00146"></a><a class="code" href="classBufFragGroup.html#a2">00146</a> int32 <a class="code" href="classBufFragGroup.html#a2">GetMaxFrags</a>()<span class="keyword"> const</span> |
| 00147 <span class="keyword"> </span>{ |
| 00148 <span class="keywordflow">return</span> max_frags; |
| 00149 }; |
| <a name="l00150"></a><a class="code" href="classBufFragGroup.html#a3">00150</a> int32 <a class="code" href="classBufFragGroup.html#a3">GetNumFrags</a>()<span class="keyword"> const</span> |
| 00151 <span class="keyword"> </span>{ |
| 00152 <span class="keywordflow">return</span> <a class="code" href="classBufFragGroup.html#n3">num_fragments</a>; |
| 00153 }; |
| <a name="l00154"></a><a class="code" href="classBufFragGroup.html#a4">00154</a> uint32 <a class="code" href="classBufFragGroup.html#a4">GetLength</a>()<span class="keyword"> const</span> |
| 00155 <span class="keyword"> </span>{ |
| 00156 <span class="keywordflow">return</span> <a class="code" href="classBufFragGroup.html#n4">length</a>; |
| 00157 }; |
| 00158 |
| 00159 <a class="code" href="classBufferFragment.html">BufferFragment</a> * <a class="code" href="group__osclutil.html#a48">GetFragment</a>(<span class="keyword">const</span> int32 idx); |
| 00160 |
| 00161 <a class="code" href="classBufferState.html">BufferState</a> * <a class="code" href="group__osclutil.html#a49">GetBufferState</a>(<span class="keyword">const</span> int32 idx); |
| 00162 |
| <a name="l00163"></a><a class="code" href="classBufFragGroup.html#a7">00163</a> <span class="keywordtype">void</span> <a class="code" href="classBufFragGroup.html#a7">AppendNext</a>(ChainClass* next_ptr) |
| 00164 { |
| 00165 <a class="code" href="classBufFragGroup.html#n2">next</a> = next_ptr; |
| 00166 }; |
| <a name="l00167"></a><a class="code" href="classBufFragGroup.html#a8">00167</a> ChainClass* <a class="code" href="classBufFragGroup.html#a8">GetNext</a>()<span class="keyword"> const</span> |
| 00168 <span class="keyword"> </span>{ |
| 00169 <span class="keywordflow">return</span> <a class="code" href="classBufFragGroup.html#n2">next</a>; |
| 00170 }; |
| 00171 |
| 00172 <span class="comment">// make fragment array accessible to allow usage within socket</span> |
| 00173 <span class="comment">// send functions.</span> |
| 00174 |
| 00175 <span class="keyword">protected</span>: |
| 00176 |
| 00177 |
| 00178 <span class="comment">// BufferFragment * GetFragment(const uint32 idx) const;</span> |
| 00179 |
| 00180 |
| 00181 |
| <a name="l00182"></a><a class="code" href="classBufFragGroup.html#b0">00182</a> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classBufFragGroup.html#b0">Clear</a>() |
| 00183 { |
| 00184 <span class="keywordflow">for</span> (<a class="code" href="group__osclbase.html#a27">uint</a> ii = 0 ; ii < <a class="code" href="classBufFragGroup.html#n3">num_fragments</a>; ++ii) |
| 00185 { |
| 00186 <span class="keywordflow">if</span> (<a class="code" href="classBufFragGroup.html#n1">buffer_states</a>[ii]) |
| 00187 { |
| 00188 <a class="code" href="classBufFragGroup.html#n1">buffer_states</a>[ii]-><a class="code" href="classBufferState.html#a3">decrement_refcnt</a>(); |
| 00189 } |
| 00190 } |
| 00191 <a class="code" href="classBufFragGroup.html#n3">num_fragments</a> = <a class="code" href="classBufFragGroup.html#n4">length</a> = 0; |
| 00192 <a class="code" href="group__osclmemory.html#a14">oscl_memset</a>(<a class="code" href="classBufFragGroup.html#n1">buffer_states</a>, 0, <span class="keyword">sizeof</span>(<a class="code" href="classBufFragGroup.html#n1">buffer_states</a>)); |
| 00193 <a class="code" href="group__osclmemory.html#a14">oscl_memset</a>(<a class="code" href="classBufFragGroup.html#n0">fragments</a>, 0, <span class="keyword">sizeof</span>(<a class="code" href="classBufFragGroup.html#n0">fragments</a>)); |
| 00194 }; |
| 00195 |
| <a name="l00196"></a><a class="code" href="classBufFragGroup.html#b1">00196</a> <a class="code" href="classBufFragStatusClass.html#s8">BufFragStatusClass::status_t</a> <a class="code" href="classBufFragGroup.html#b1">AddFragment</a>(<span class="keyword">const</span> <a class="code" href="classBufferFragment.html">BufferFragment</a>& frag, <a class="code" href="classBufferState.html">BufferState</a>* in_buffer_state, |
| 00197 int32 location_offset = max_frags) |
| 00198 { |
| 00199 <span class="keywordflow">if</span> (<a class="code" href="classBufFragGroup.html#n3">num_fragments</a> > max_frags) |
| 00200 { |
| 00201 <span class="keywordflow">return</span> <a class="code" href="classBufFragStatusClass.html#s8s1">BufFragStatusClass::TOO_MANY_FRAGS</a>; |
| 00202 } |
| 00203 <span class="keywordflow">if</span> (frag.<a class="code" href="structOsclMemoryFragment.html#m1">ptr</a> == <a class="code" href="group__osclbase.html#a81">NULL</a>) |
| 00204 { |
| 00205 <span class="keywordflow">return</span> <a class="code" href="classBufFragStatusClass.html#s8s3">BufFragStatusClass::EMPTY_FRAGMENT</a>; |
| 00206 } |
| 00207 |
| 00208 <span class="keywordflow">if</span> (location_offset >= 0 && location_offset < (int32) <a class="code" href="classBufFragGroup.html#n3">num_fragments</a>) |
| 00209 { |
| 00210 <span class="keywordflow">if</span> (<a class="code" href="classBufFragGroup.html#n0">fragments</a>[location_offset].<a class="code" href="structOsclMemoryFragment.html#m1">ptr</a>) |
| 00211 { |
| 00212 <span class="comment">// make room for the new fragment</span> |
| 00213 <a class="code" href="group__osclmemory.html#a12">oscl_memmove</a>(<a class="code" href="classBufFragGroup.html#n0">fragments</a> + location_offset + 1, <a class="code" href="classBufFragGroup.html#n0">fragments</a> + location_offset, |
| 00214 (<a class="code" href="classBufFragGroup.html#n3">num_fragments</a> - location_offset)*<span class="keyword">sizeof</span>(<a class="code" href="classBufferFragment.html">BufferFragment</a>)); |
| 00215 <a class="code" href="group__osclmemory.html#a12">oscl_memmove</a>(<a class="code" href="classBufFragGroup.html#n1">buffer_states</a> + location_offset + 1, <a class="code" href="classBufFragGroup.html#n1">buffer_states</a> + location_offset, |
| 00216 (<a class="code" href="classBufFragGroup.html#n3">num_fragments</a> - location_offset)*<span class="keyword">sizeof</span>(<a class="code" href="classBufferState.html">BufferState</a>*)); |
| 00217 ++<a class="code" href="classBufFragGroup.html#n3">num_fragments</a>; <span class="comment">/* increment the number of fragments if a move</span> |
| 00218 <span class="comment"> * is necessary. If the location was empty, then</span> |
| 00219 <span class="comment"> * has already been reserved and counted.</span> |
| 00220 <span class="comment"> */</span> |
| 00221 } |
| 00222 <a class="code" href="classBufFragGroup.html#n0">fragments</a>[location_offset] = frag; |
| 00223 <a class="code" href="classBufFragGroup.html#n1">buffer_states</a>[location_offset] = in_buffer_state; |
| 00224 <span class="keywordflow">if</span> (in_buffer_state) in_buffer_state-><a class="code" href="classBufferState.html#a2">increment_refcnt</a>(); |
| 00225 <a class="code" href="classBufFragGroup.html#n4">length</a> += frag.<a class="code" href="structOsclMemoryFragment.html#m0">len</a>; |
| 00226 <span class="keywordflow">return</span> <a class="code" href="classBufFragStatusClass.html#s8s0">BufFragStatusClass::BFG_SUCCESS</a>; |
| 00227 } |
| 00228 |
| 00229 <span class="comment">// append the new fragment to the end</span> |
| 00230 <a class="code" href="classBufFragGroup.html#n0">fragments</a>[<a class="code" href="classBufFragGroup.html#n3">num_fragments</a>] = frag; |
| 00231 <a class="code" href="classBufFragGroup.html#n1">buffer_states</a>[<a class="code" href="classBufFragGroup.html#n3">num_fragments</a>++] = in_buffer_state; |
| 00232 <a class="code" href="classBufFragGroup.html#n4">length</a> += frag.<a class="code" href="structOsclMemoryFragment.html#m0">len</a>; |
| 00233 <span class="keywordflow">if</span> (in_buffer_state) in_buffer_state-><a class="code" href="classBufferState.html#a2">increment_refcnt</a>(); |
| 00234 <span class="keywordflow">return</span> <a class="code" href="classBufFragStatusClass.html#s8s0">BufFragStatusClass::BFG_SUCCESS</a>; |
| 00235 }; |
| 00236 |
| <a name="l00237"></a><a class="code" href="classBufFragGroup.html#n0">00237</a> <a class="code" href="classBufferFragment.html">BufferFragment</a> <a class="code" href="classBufFragGroup.html#n0">fragments</a>[max_frags]; |
| <a name="l00238"></a><a class="code" href="classBufFragGroup.html#n1">00238</a> <a class="code" href="classBufferState.html">BufferState</a>* <a class="code" href="classBufFragGroup.html#n1">buffer_states</a>[max_frags]; |
| <a name="l00239"></a><a class="code" href="classBufFragGroup.html#n2">00239</a> ChainClass* <a class="code" href="classBufFragGroup.html#n2">next</a>; |
| <a name="l00240"></a><a class="code" href="classBufFragGroup.html#n3">00240</a> uint32 <a class="code" href="classBufFragGroup.html#n3">num_fragments</a>; |
| <a name="l00241"></a><a class="code" href="classBufFragGroup.html#n4">00241</a> uint32 <a class="code" href="classBufFragGroup.html#n4">length</a>; |
| 00242 }; |
| 00243 |
| <a name="l00244"></a><a class="code" href="classBufFragGroup.html#a48">00244</a> <span class="keyword">template</span> <<span class="keyword">class</span> ChainClass, u<span class="keywordtype">int</span>32 max_frags> <span class="keyword">inline</span> <a class="code" href="classBufferFragment.html">BufferFragment</a> * <a class="code" href="group__osclutil.html#a48">BufFragGroup<ChainClass, max_frags> :: GetFragment</a>(<span class="keyword">const</span> int32 idx) |
| 00245 { |
| 00246 <span class="keywordflow">if</span> (idx < (int)num_fragments && idx >= 0) |
| 00247 { |
| 00248 <span class="keywordflow">return</span> & <a class="code" href="classBufFragGroup.html#n0">fragments</a>[idx]; |
| 00249 } |
| 00250 <span class="keywordflow">else</span> |
| 00251 { |
| 00252 <span class="keywordflow">return</span> <a class="code" href="group__osclbase.html#a81">NULL</a>; |
| 00253 } |
| 00254 } |
| 00255 |
| <a name="l00256"></a><a class="code" href="classBufFragGroup.html#a49">00256</a> <span class="keyword">template</span> <<span class="keyword">class</span> ChainClass, u<span class="keywordtype">int</span>32 max_frags> <span class="keyword">inline</span> <a class="code" href="classBufferState.html">BufferState</a> * <a class="code" href="group__osclutil.html#a49">BufFragGroup<ChainClass, max_frags> :: GetBufferState</a>(<span class="keyword">const</span> int32 idx) |
| 00257 { |
| 00258 <span class="keywordflow">if</span> (idx < (int)num_fragments && idx >= 0) |
| 00259 { |
| 00260 <span class="keywordflow">return</span> <a class="code" href="classBufFragGroup.html#n1">buffer_states</a>[idx]; |
| 00261 } |
| 00262 <span class="keywordflow">else</span> |
| 00263 { |
| 00264 <span class="keywordflow">return</span> <a class="code" href="group__osclbase.html#a81">NULL</a>; |
| 00265 } |
| 00266 } |
| 00267 |
| 00268 |
| <a name="l00269"></a><a class="code" href="classMediaData.html">00269</a> <span class="keyword">template</span> <<span class="keyword">class</span> ChainClass, u<span class="keywordtype">int</span>32 max_frags, u<span class="keywordtype">int</span>32 local_bufsize> <span class="keyword">class </span><a class="code" href="classMediaData.html">MediaData</a> : |
| 00270 <span class="keyword">public</span> <a class="code" href="classBufFragGroup.html">BufFragGroup</a><ChainClass, max_frags> |
| 00271 { |
| 00272 |
| 00273 <span class="keyword">public</span>: |
| <a name="l00274"></a><a class="code" href="classMediaData.html#a0">00274</a> <a class="code" href="classMediaData.html#a0">MediaData</a>(): <a class="code" href="classMediaData.html#n0">timestamp</a>(0), <a class="code" href="classMediaData.html#n2">available_localbuf</a>(local_bufsize), <a class="code" href="classMediaData.html#n3">num_reserved_fragments</a>(0) {}; |
| 00275 |
| <a name="l00276"></a><a class="code" href="classMediaData.html#a1">00276</a> <span class="keyword">virtual</span> <a class="code" href="classMediaData.html#a1">~MediaData</a>() {} |
| 00277 |
| <a name="l00278"></a><a class="code" href="classMediaData.html#a2">00278</a> uint32 <a class="code" href="classMediaData.html#a2">GetLocalBufsize</a>()<span class="keyword"> const</span> |
| 00279 <span class="keyword"> </span>{ |
| 00280 <span class="keywordflow">return</span> local_bufsize; |
| 00281 }; |
| <a name="l00282"></a><a class="code" href="classMediaData.html#a3">00282</a> <a class="code" href="group__osclutil.html#a2">MediaTimestamp</a> <a class="code" href="classMediaData.html#a3">GetTimestamp</a>()<span class="keyword"> const</span> |
| 00283 <span class="keyword"> </span>{ |
| 00284 <span class="keywordflow">return</span> <a class="code" href="classMediaData.html#n0">timestamp</a>; |
| 00285 }; |
| <a name="l00286"></a><a class="code" href="classMediaData.html#a4">00286</a> <span class="keywordtype">void</span> <a class="code" href="classMediaData.html#a4">SetTimestamp</a>(<a class="code" href="group__osclutil.html#a2">MediaTimestamp</a> in_timestamp) |
| 00287 { |
| 00288 <a class="code" href="classMediaData.html#n0">timestamp</a> = in_timestamp; |
| 00289 }; |
| <a name="l00290"></a><a class="code" href="classMediaData.html#a5">00290</a> uint32 <a class="code" href="classMediaData.html#a5">GetAvailableBufferSize</a>()<span class="keyword"> const</span> |
| 00291 <span class="keyword"> </span>{ |
| 00292 <span class="keywordflow">return</span> <a class="code" href="classMediaData.html#n2">available_localbuf</a>; |
| 00293 }; |
| 00294 |
| 00295 |
| 00296 |
| 00297 <span class="comment">// The input should be initialized so that the fragment length is the</span> |
| 00298 <span class="comment">// request size. The returned value will have a non-NULL pointer if the</span> |
| 00299 <span class="comment">// request could be fulfilled.</span> |
| <a name="l00300"></a><a class="code" href="classMediaData.html#a6">00300</a> <a class="code" href="classBufFragStatusClass.html#s8">MediaStatusClass::status_t</a> <a class="code" href="classMediaData.html#a6">GetLocalFragment</a>(<a class="code" href="classBufferFragment.html">BufferFragment</a>& fragment) |
| 00301 { |
| 00302 <span class="keywordflow">if</span> (fragment.<a class="code" href="structOsclMemoryFragment.html#m0">len</a> > <a class="code" href="classMediaData.html#n2">available_localbuf</a>) |
| 00303 { |
| 00304 fragment.<a class="code" href="structOsclMemoryFragment.html#m1">ptr</a> = <a class="code" href="group__osclbase.html#a81">NULL</a>; |
| 00305 fragment.<a class="code" href="structOsclMemoryFragment.html#m0">len</a> = <a class="code" href="classMediaData.html#n2">available_localbuf</a>; |
| 00306 <span class="keywordflow">return</span> <a class="code" href="classBufFragStatusClass.html#s8s2">MediaStatusClass::NOT_ENOUGH_SPACE</a>; |
| 00307 } |
| 00308 |
| 00309 fragment.<a class="code" href="structOsclMemoryFragment.html#m1">ptr</a> = <a class="code" href="classMediaData.html#n1">localbuf</a> + (local_bufsize - <a class="code" href="classMediaData.html#n2">available_localbuf</a>); |
| 00310 <a class="code" href="classMediaData.html#n2">available_localbuf</a> -= fragment.<a class="code" href="structOsclMemoryFragment.html#m0">len</a>; |
| 00311 <span class="keywordflow">return</span> <a class="code" href="classBufFragStatusClass.html#s8s0">MediaStatusClass::BFG_SUCCESS</a>; |
| 00312 }; |
| 00313 |
| <a name="l00314"></a><a class="code" href="classMediaData.html#a7">00314</a> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classMediaData.html#a7">Clear</a>() |
| 00315 { |
| 00316 <span class="keywordflow">for</span> (<a class="code" href="group__osclbase.html#a27">uint</a> ii = 0 ; ii < this-><a class="code" href="classBufFragGroup.html#n3">num_fragments</a>; ++ii) |
| 00317 { |
| 00318 <span class="keywordflow">if</span> (this-><a class="code" href="classBufFragGroup.html#n1">buffer_states</a>[ii]) |
| 00319 { |
| 00320 this-><a class="code" href="classBufFragGroup.html#n1">buffer_states</a>[ii]-><a class="code" href="classBufferState.html#a3">decrement_refcnt</a>(); |
| 00321 } |
| 00322 } |
| 00323 this-><a class="code" href="classBufFragGroup.html#n3">num_fragments</a> = 0; |
| 00324 this-><a class="code" href="classBufFragGroup.html#n4">length</a> = 0; |
| 00325 <a class="code" href="group__osclmemory.html#a14">oscl_memset</a>(this->buffer_states, 0, <span class="keyword">sizeof</span>(this->buffer_states)); |
| 00326 <a class="code" href="group__osclmemory.html#a14">oscl_memset</a>(this->fragments, 0, <span class="keyword">sizeof</span>(this->fragments)); |
| 00327 this-><a class="code" href="classMediaData.html#n2">available_localbuf</a> = local_bufsize; |
| 00328 }; |
| 00329 |
| 00330 |
| <a name="l00331"></a><a class="code" href="classMediaData.html#a8">00331</a> <span class="keywordtype">bool</span> <a class="code" href="classMediaData.html#a8">IsLocalData</a>(<span class="keyword">const</span> <a class="code" href="structOsclMemoryFragment.html">OsclMemoryFragment</a>& frag)<span class="keyword"> const</span> |
| 00332 <span class="keyword"> </span>{ |
| 00333 <span class="keywordflow">if</span> (frag.<a class="code" href="structOsclMemoryFragment.html#m1">ptr</a> == <a class="code" href="group__osclbase.html#a81">NULL</a>) |
| 00334 <span class="keywordflow">return</span> <span class="keyword">true</span>; |
| 00335 <span class="keywordflow">if</span> ((uint8 *)frag.<a class="code" href="structOsclMemoryFragment.html#m1">ptr</a> >= <a class="code" href="classMediaData.html#n1">localbuf</a>) |
| 00336 { |
| 00337 <span class="keywordflow">if</span> (((uint8 *)frag.<a class="code" href="structOsclMemoryFragment.html#m1">ptr</a>) + frag.<a class="code" href="structOsclMemoryFragment.html#m0">len</a> < <a class="code" href="classMediaData.html#n1">localbuf</a> + local_bufsize) |
| 00338 { |
| 00339 <span class="keywordflow">return</span> <span class="keyword">true</span>; |
| 00340 } |
| 00341 <span class="keywordflow">return</span> <span class="keyword">false</span>; |
| 00342 } |
| 00343 <span class="keywordflow">return</span> <span class="keyword">false</span>; |
| 00344 } |
| 00345 |
| <a name="l00346"></a><a class="code" href="classMediaData.html#a9">00346</a> <span class="keywordtype">int</span> <a class="code" href="classMediaData.html#a9">GetMediaSize</a>()<span class="keyword"> const</span> |
| 00347 <span class="keyword"> </span>{ |
| 00348 <span class="keywordtype">int</span> num_reserved = 0; |
| 00349 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> ii = 0; ii < <a class="code" href="classMediaData.html#n3">num_reserved_fragments</a>; ii++) |
| 00350 num_reserved += this-><a class="code" href="classBufFragGroup.html#n0">fragments</a>[ii].<a class="code" href="structOsclMemoryFragment.html#m0">len</a>; |
| 00351 |
| 00352 <span class="keywordflow">return</span> (this-><a class="code" href="classBufFragGroup.html#n4">length</a> - num_reserved); |
| 00353 } |
| 00354 |
| <a name="l00355"></a><a class="code" href="classMediaData.html#a10">00355</a> <a class="code" href="classBufferFragment.html">BufferFragment</a> * <a class="code" href="classMediaData.html#a10">GetMediaFragment</a>(<span class="keyword">const</span> uint32 idx) |
| 00356 { |
| 00357 uint32 tmp = idx + this-><a class="code" href="classMediaData.html#n3">num_reserved_fragments</a>; |
| 00358 <span class="keywordflow">if</span> (tmp > this-><a class="code" href="classBufFragGroup.html#n3">num_fragments</a>) |
| 00359 { |
| 00360 <span class="keywordflow">return</span> <a class="code" href="group__osclbase.html#a81">NULL</a>; |
| 00361 } |
| 00362 <span class="keywordflow">else</span> |
| 00363 { |
| 00364 <span class="keywordflow">return</span> & this-><a class="code" href="classBufFragGroup.html#n0">fragments</a>[tmp]; |
| 00365 } |
| 00366 } |
| 00367 |
| <a name="l00368"></a><a class="code" href="classMediaData.html#a11">00368</a> uint32 <a class="code" href="classMediaData.html#a11">GetNumMediaFrags</a>(<span class="keyword">const</span> uint32 idx)<span class="keyword"> const</span> |
| 00369 <span class="keyword"> </span>{ |
| 00370 <span class="keywordflow">if</span> (this-><a class="code" href="classBufFragGroup.html#n3">num_fragments</a> >= this-><a class="code" href="classMediaData.html#n3">num_reserved_fragments</a>) |
| 00371 <span class="keywordflow">return</span> this-><a class="code" href="classBufFragGroup.html#n3">num_fragments</a> - this-><a class="code" href="classMediaData.html#n3">num_reserved_fragments</a>; |
| 00372 <span class="keywordflow">else</span> <span class="keywordflow">return</span> 0; |
| 00373 } |
| 00374 |
| 00375 <span class="keyword">protected</span>: |
| 00376 <span class="comment">// This function copies the fragment data to the local buffer</span> |
| <a name="l00377"></a><a class="code" href="classMediaData.html#b0">00377</a> <a class="code" href="classBufFragStatusClass.html#s8">MediaStatusClass::status_t</a> <a class="code" href="classMediaData.html#b0">AddLocalFragment</a>(<span class="keyword">const</span> <a class="code" href="classBufferFragment.html">BufferFragment</a>& frag, |
| 00378 int32 location_offset) |
| 00379 { |
| 00380 |
| 00381 <span class="keywordflow">if</span> (this-><a class="code" href="classBufFragGroup.html#n3">num_fragments</a> > max_frags) |
| 00382 { |
| 00383 <span class="keywordflow">return</span> <a class="code" href="classBufFragStatusClass.html#s8s1">MediaStatusClass::TOO_MANY_FRAGS</a>; |
| 00384 } |
| 00385 |
| 00386 <span class="keywordflow">if</span> (frag.<a class="code" href="structOsclMemoryFragment.html#m1">ptr</a> == <a class="code" href="group__osclbase.html#a81">NULL</a> || frag.<a class="code" href="structOsclMemoryFragment.html#m0">len</a> == 0) |
| 00387 { |
| 00388 <span class="keywordflow">return</span> <a class="code" href="classBufFragStatusClass.html#s8s3">MediaStatusClass::EMPTY_FRAGMENT</a>; |
| 00389 } |
| 00390 |
| 00391 <span class="comment">// see if there is enough room in the local buffer</span> |
| 00392 <span class="keywordflow">if</span> (frag.<a class="code" href="structOsclMemoryFragment.html#m0">len</a> > <a class="code" href="classMediaData.html#n2">available_localbuf</a>) |
| 00393 { |
| 00394 <span class="keywordflow">return</span> <a class="code" href="classBufFragStatusClass.html#s8s2">MediaStatusClass::NOT_ENOUGH_SPACE</a>; |
| 00395 } |
| 00396 |
| 00397 <span class="comment">// get the fragment</span> |
| 00398 <a class="code" href="classBufferFragment.html">BufferFragment</a> local_fragment; |
| 00399 local_fragment.<a class="code" href="structOsclMemoryFragment.html#m0">len</a> = frag.<a class="code" href="structOsclMemoryFragment.html#m0">len</a>; |
| 00400 local_fragment.<a class="code" href="structOsclMemoryFragment.html#m1">ptr</a> = <a class="code" href="classMediaData.html#n1">localbuf</a> + (local_bufsize - <a class="code" href="classMediaData.html#n2">available_localbuf</a>); |
| 00401 <a class="code" href="classMediaData.html#n2">available_localbuf</a> -= frag.<a class="code" href="structOsclMemoryFragment.html#m0">len</a>; |
| 00402 this-><a class="code" href="classBufFragGroup.html#n4">length</a> += frag.<a class="code" href="structOsclMemoryFragment.html#m0">len</a>; |
| 00403 |
| 00404 <a class="code" href="group__osclmemory.html#a11">oscl_memcpy</a>(local_fragment.<a class="code" href="structOsclMemoryFragment.html#m1">ptr</a>, frag.<a class="code" href="structOsclMemoryFragment.html#m1">ptr</a>, frag.<a class="code" href="structOsclMemoryFragment.html#m0">len</a>*<span class="keyword">sizeof</span>(uint8)); |
| 00405 |
| 00406 <span class="keywordflow">if</span> (location_offset >= 0 && location_offset < (int32) this-><a class="code" href="classBufFragGroup.html#n3">num_fragments</a>) |
| 00407 { |
| 00408 <span class="keywordflow">if</span> (this-><a class="code" href="classBufFragGroup.html#n0">fragments</a>[location_offset].<a class="code" href="structOsclMemoryFragment.html#m1">ptr</a>) |
| 00409 { |
| 00410 <span class="comment">// make room for the new fragment</span> |
| 00411 <a class="code" href="group__osclmemory.html#a12">oscl_memmove</a>(this->fragments + location_offset + 1, this->fragments + location_offset, |
| 00412 (this->num_fragments - location_offset)*<span class="keyword">sizeof</span>(<a class="code" href="classBufferFragment.html">BufferFragment</a>)); |
| 00413 <a class="code" href="group__osclmemory.html#a12">oscl_memmove</a>(this->buffer_states + location_offset + 1, this->buffer_states + location_offset, |
| 00414 (this->num_fragments - location_offset)*<span class="keyword">sizeof</span>(<a class="code" href="classBufferState.html">BufferState</a>*)); |
| 00415 ++this-><a class="code" href="classBufFragGroup.html#n3">num_fragments</a>; <span class="comment">/* increment the number of fragments if a move</span> |
| 00416 <span class="comment"> * is necessary. If the location was empty, then</span> |
| 00417 <span class="comment"> * has already been reserved and counted.</span> |
| 00418 <span class="comment"> */</span> |
| 00419 } |
| 00420 this-><a class="code" href="classBufFragGroup.html#n0">fragments</a>[location_offset] = local_fragment; |
| 00421 this-><a class="code" href="classBufFragGroup.html#n1">buffer_states</a>[location_offset] = <a class="code" href="group__osclbase.html#a81">NULL</a>; |
| 00422 <span class="keywordflow">return</span> <a class="code" href="classBufFragStatusClass.html#s8s0">MediaStatusClass::BFG_SUCCESS</a>; |
| 00423 } |
| 00424 |
| 00425 <span class="comment">// append the new fragment to the end</span> |
| 00426 this-><a class="code" href="classBufFragGroup.html#n0">fragments</a>[this-><a class="code" href="classBufFragGroup.html#n3">num_fragments</a>] = local_fragment; |
| 00427 this-><a class="code" href="classBufFragGroup.html#n1">buffer_states</a>[this-><a class="code" href="classBufFragGroup.html#n3">num_fragments</a>++] = <a class="code" href="group__osclbase.html#a81">NULL</a>; |
| 00428 <span class="keywordflow">return</span> <a class="code" href="classBufFragStatusClass.html#s8s0">MediaStatusClass::BFG_SUCCESS</a>; |
| 00429 }; |
| 00430 |
| <a name="l00431"></a><a class="code" href="classMediaData.html#n0">00431</a> <a class="code" href="group__osclutil.html#a2">MediaTimestamp</a> <a class="code" href="classMediaData.html#n0">timestamp</a>; |
| <a name="l00432"></a><a class="code" href="classMediaData.html#n1">00432</a> uint8 <a class="code" href="classMediaData.html#n1">localbuf</a>[local_bufsize]; |
| <a name="l00433"></a><a class="code" href="classMediaData.html#n2">00433</a> uint32 <a class="code" href="classMediaData.html#n2">available_localbuf</a>; |
| 00434 |
| <a name="l00435"></a><a class="code" href="classMediaData.html#n3">00435</a> <span class="keywordtype">int</span> <a class="code" href="classMediaData.html#n3">num_reserved_fragments</a>; |
| 00436 }; |
| 00437 |
| 00438 <span class="preprocessor">#endif</span> |
| 00439 <span class="preprocessor"></span> |
| </pre></div><hr size="1"><img src="pvlogo_small.jpg"><address style="align: right;"><small>OSCL API</small> |
| <address style="align: left;"><small>Posting Version: OPENCORE_20090310 </small> |
| </small></address> |
| </body> |
| </html> |
