]> git.sesse.net Git - vlc/blobdiff - modules/codec/mpeg_audio.c
Use var_InheritString for --decklink-video-connection.
[vlc] / modules / codec / mpeg_audio.c
index f025be51f93b5ea0e1e0a3ed0a924eeae702587d..2335c4e457e05e2ce8d75a1fedd1e5b0fff34356 100644 (file)
@@ -35,6 +35,8 @@
 #include <vlc_plugin.h>
 #include <vlc_codec.h>
 #include <vlc_aout.h>
+#include <vlc_modules.h>
+#include <assert.h>
 
 #include <vlc_block_helper.h>
 
@@ -56,8 +58,8 @@ struct decoder_sys_t
     /*
      * Common properties
      */
-    audio_date_t          end_date;
-    unsigned int          i_current_layer;
+    date_t          end_date;
+    unsigned int    i_current_layer;
 
     mtime_t i_pts;
 
@@ -95,7 +97,7 @@ static int  OpenPacketizer( vlc_object_t * );
 static void CloseDecoder  ( vlc_object_t * );
 static void *DecodeBlock  ( decoder_t *, block_t ** );
 
-static uint8_t       *GetOutBuffer ( decoder_t *, void ** );
+static uint8_t       *GetOutBuffer ( decoder_t *, block_t ** );
 static aout_buffer_t *GetAoutBuffer( decoder_t * );
 static block_t       *GetSoutBuffer( decoder_t * );
 
@@ -147,8 +149,9 @@ static int Open( vlc_object_t *p_this )
     /* Misc init */
     p_sys->b_packetizer = false;
     p_sys->i_state = STATE_NOSYNC;
-    aout_DateSet( &p_sys->end_date, 0 );
+    date_Set( &p_sys->end_date, 0 );
     p_sys->bytestream = block_BytestreamInit();
+    p_sys->i_pts = VLC_TS_INVALID;
     p_sys->b_discontinuity = false;
 
     /* Set output properties */
@@ -199,7 +202,7 @@ static void *DecodeBlock( decoder_t *p_dec, block_t **pp_block )
     uint8_t p_header[MAD_BUFFER_GUARD];
     uint32_t i_header;
     uint8_t *p_buf;
-    void *p_out_buffer;
+    block_t *p_out_buffer;
 
     if( !pp_block || !*pp_block ) return NULL;
 
@@ -210,13 +213,13 @@ static void *DecodeBlock( decoder_t *p_dec, block_t **pp_block )
             p_sys->i_state = STATE_NOSYNC;
             block_BytestreamEmpty( &p_sys->bytestream );
         }
-        aout_DateSet( &p_sys->end_date, 0 );
+        date_Set( &p_sys->end_date, 0 );
         block_Release( *pp_block );
         p_sys->b_discontinuity = true;
         return NULL;
     }
 
-    if( !aout_DateGet( &p_sys->end_date ) && !(*pp_block)->i_pts )
+    if( !date_Get( &p_sys->end_date ) && (*pp_block)->i_pts <= VLC_TS_INVALID )
     {
         /* We've just started the stream, wait for the first PTS. */
         msg_Dbg( p_dec, "waiting for PTS" );
@@ -254,10 +257,10 @@ static void *DecodeBlock( decoder_t *p_dec, block_t **pp_block )
         case STATE_SYNC:
             /* New frame, set the Presentation Time Stamp */
             p_sys->i_pts = p_sys->bytestream.p_block->i_pts;
-            if( p_sys->i_pts != 0 &&
-                p_sys->i_pts != aout_DateGet( &p_sys->end_date ) )
+            if( p_sys->i_pts > VLC_TS_INVALID &&
+                p_sys->i_pts != date_Get( &p_sys->end_date ) )
             {
-                aout_DateSet( &p_sys->end_date, p_sys->i_pts );
+                date_Set( &p_sys->end_date, p_sys->i_pts );
             }
             p_sys->i_state = STATE_HEADER;
 
@@ -284,6 +287,8 @@ static void *DecodeBlock( decoder_t *p_dec, block_t **pp_block )
                                             &p_sys->i_max_frame_size,
                                             &p_sys->i_layer );
 
+            p_dec->fmt_in.i_profile = p_sys->i_layer;
+
             if( p_sys->i_frame_size == -1 )
             {
                 msg_Dbg( p_dec, "emulated startcode" );
@@ -457,11 +462,13 @@ static void *DecodeBlock( decoder_t *p_dec, block_t **pp_block )
 
             /* Copy the whole frame into the buffer. When we reach this point
              * we already know we have enough data available. */
-            block_GetBytes( &p_sys->bytestream, p_buf, p_sys->i_frame_size );
+            block_GetBytes( &p_sys->bytestream,
+                            p_buf, __MIN( (unsigned)p_sys->i_frame_size, p_out_buffer->i_buffer ) );
 
             /* Get beginning of next frame for libmad */
             if( !p_sys->b_packetizer )
             {
+                assert( p_out_buffer->i_buffer >= (unsigned)p_sys->i_frame_size + MAD_BUFFER_GUARD );
                 memcpy( p_buf + p_sys->i_frame_size,
                         p_header, MAD_BUFFER_GUARD );
             }
@@ -470,7 +477,7 @@ static void *DecodeBlock( decoder_t *p_dec, block_t **pp_block )
 
             /* Make sure we don't reuse the same pts twice */
             if( p_sys->i_pts == p_sys->bytestream.p_block->i_pts )
-                p_sys->i_pts = p_sys->bytestream.p_block->i_pts = 0;
+                p_sys->i_pts = p_sys->bytestream.p_block->i_pts = VLC_TS_INVALID;
 
             /* So p_block doesn't get re-added several times */
             *pp_block = block_BytestreamPop( &p_sys->bytestream );
@@ -485,7 +492,7 @@ static void *DecodeBlock( decoder_t *p_dec, block_t **pp_block )
 /*****************************************************************************
  * GetOutBuffer:
  *****************************************************************************/
-static uint8_t *GetOutBuffer( decoder_t *p_dec, void **pp_out_buffer )
+static uint8_t *GetOutBuffer( decoder_t *p_dec, block_t **pp_out_buffer )
 {
     decoder_sys_t *p_sys = p_dec->p_sys;
     uint8_t *p_buf;
@@ -495,8 +502,8 @@ static uint8_t *GetOutBuffer( decoder_t *p_dec, void **pp_out_buffer )
         msg_Dbg( p_dec, "MPGA channels:%d samplerate:%d bitrate:%d",
                   p_sys->i_channels, p_sys->i_rate, p_sys->i_bit_rate );
 
-        aout_DateInit( &p_sys->end_date, p_sys->i_rate );
-        aout_DateSet( &p_sys->end_date, p_sys->i_pts );
+        date_Init( &p_sys->end_date, p_sys->i_rate, 1 );
+        date_Set( &p_sys->end_date, p_sys->i_pts );
     }
 
     p_dec->fmt_out.audio.i_rate     = p_sys->i_rate;
@@ -538,14 +545,15 @@ static aout_buffer_t *GetAoutBuffer( decoder_t *p_dec )
     p_buf = decoder_NewAudioBuffer( p_dec, p_sys->i_frame_length );
     if( p_buf == NULL ) return NULL;
 
-    p_buf->start_date = aout_DateGet( &p_sys->end_date );
-    p_buf->end_date =
-        aout_DateIncrement( &p_sys->end_date, p_sys->i_frame_length );
-    p_buf->b_discontinuity = p_sys->b_discontinuity;
+    p_buf->i_pts = date_Get( &p_sys->end_date );
+    p_buf->i_length = date_Increment( &p_sys->end_date, p_sys->i_frame_length )
+                      - p_buf->i_pts;
+    if( p_sys->b_discontinuity )
+        p_buf->i_flags |= BLOCK_FLAG_DISCONTINUITY;
     p_sys->b_discontinuity = false;
 
     /* Hack for libmad filter */
-    p_buf->i_nb_bytes = p_sys->i_frame_size + MAD_BUFFER_GUARD;
+    p_buf = block_Realloc( p_buf, 0, p_sys->i_frame_size + MAD_BUFFER_GUARD );
 
     return p_buf;
 }
@@ -561,10 +569,10 @@ static block_t *GetSoutBuffer( decoder_t *p_dec )
     p_block = block_New( p_dec, p_sys->i_frame_size );
     if( p_block == NULL ) return NULL;
 
-    p_block->i_pts = p_block->i_dts = aout_DateGet( &p_sys->end_date );
+    p_block->i_pts = p_block->i_dts = date_Get( &p_sys->end_date );
 
     p_block->i_length =
-        aout_DateIncrement( &p_sys->end_date, p_sys->i_frame_length ) - p_block->i_pts;
+        date_Increment( &p_sys->end_date, p_sys->i_frame_length ) - p_block->i_pts;
 
     return p_block;
 }