]> git.sesse.net Git - vlc/blobdiff - modules/codec/faad.c
* block: added
[vlc] / modules / codec / faad.c
index 3ce7b16c12b568fa9d0741f9cf01a2bee8437228..6cc457b986f53f6f94ef264e0597f892d5bd269b 100644 (file)
@@ -2,10 +2,10 @@
  * decoder.c: AAC decoder using libfaad2
  *****************************************************************************
  * Copyright (C) 2001, 2003 VideoLAN
- * $Id: faad.c,v 1.9 2004/01/25 18:20:12 bigben Exp $
+ * $Id$
  *
  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
- *          Gildas Bazin <gbazin@netcourrier.com>
+ *          Gildas Bazin <gbazin@videolan.org>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -37,6 +37,8 @@ static void Close( vlc_object_t * );
 vlc_module_begin();
     set_description( _("AAC audio decoder (using libfaad2)") );
     set_capability( "decoder", 100 );
+    set_category( CAT_INPUT );
+    set_subcategory( SUBCAT_INPUT_ACODEC );
     set_callbacks( Open, Close );
 vlc_module_end();
 
@@ -115,7 +117,11 @@ static int Open( vlc_object_t *p_this )
     /* Misc init */
     aout_DateSet( &p_sys->date, 0 );
     p_dec->fmt_out.i_cat = AUDIO_ES;
-    p_dec->fmt_out.i_codec = VLC_FOURCC('f','l','3','2');
+
+    if (p_this->p_libvlc->i_cpu & CPU_CAPABILITY_FPU)
+        p_dec->fmt_out.i_codec = VLC_FOURCC('f','l','3','2');
+    else
+        p_dec->fmt_out.i_codec = AOUT_FMT_S16_NE;
     p_dec->pf_decode_audio = DecodeBlock;
 
     p_dec->fmt_out.audio.i_physical_channels =
@@ -147,13 +153,19 @@ static int Open( vlc_object_t *p_this )
 
     /* Set the faad config */
     cfg = faacDecGetCurrentConfiguration( p_sys->hfaad );
-    cfg->outputFormat = FAAD_FMT_FLOAT;
+    if (p_this->p_libvlc->i_cpu & CPU_CAPABILITY_FPU)
+        cfg->outputFormat = FAAD_FMT_FLOAT;
+    else
+        cfg->outputFormat = FAAD_FMT_16BIT;
     faacDecSetConfiguration( p_sys->hfaad, cfg );
 
     /* buffer */
     p_sys->i_buffer = p_sys->i_buffer_size = 0;
     p_sys->p_buffer = 0;
 
+    /* Faad2 can't deal with truncated data (eg. from MPEG TS) */
+    p_dec->b_need_packetized = VLC_TRUE;
+
     return VLC_SUCCESS;
 }
 
@@ -169,7 +181,7 @@ static aout_buffer_t *DecodeBlock( decoder_t *p_dec, block_t **pp_block )
 
     p_block = *pp_block;
 
-    if( p_block->b_discontinuity )
+    if( p_block->i_flags&(BLOCK_FLAG_DISCONTINUITY|BLOCK_FLAG_CORRUPTED) )
     {
         block_Release( p_block );
         return NULL;
@@ -190,6 +202,22 @@ static aout_buffer_t *DecodeBlock( decoder_t *p_dec, block_t **pp_block )
         p_block->i_buffer = 0;
     }
 
+    if( p_dec->fmt_out.audio.i_rate == 0 && p_dec->fmt_in.i_extra > 0 )
+    {
+        /* We have a decoder config so init the handle */
+        unsigned long i_rate;
+        unsigned char i_channels;
+
+        if( faacDecInit2( p_sys->hfaad, p_dec->fmt_in.p_extra,
+                          p_dec->fmt_in.i_extra,
+                          &i_rate, &i_channels ) >= 0 )
+        {
+            p_dec->fmt_out.audio.i_rate = i_rate;
+            p_dec->fmt_out.audio.i_channels = i_channels;
+            aout_DateInit( &p_sys->date, i_rate );
+        }
+    }
+
     if( p_dec->fmt_out.audio.i_rate == 0 && p_sys->i_buffer )
     {
         unsigned long i_rate;
@@ -298,6 +326,13 @@ static aout_buffer_t *DecodeBlock( decoder_t *p_dec, block_t **pp_block )
                     break;
                 }
             }
+
+            if( j == MAX_CHANNEL_POSITIONS )
+            {
+                msg_Warn( p_dec, "unknown channel ordering" );
+                block_Release( p_block );
+                return NULL;
+            }
         }
         p_dec->fmt_out.audio.i_original_channels =
             p_dec->fmt_out.audio.i_physical_channels;
@@ -369,12 +404,14 @@ static void DoReordering( decoder_t *p_dec,
     }
 
     /* Do the actual reordering */
-    for( i = 0; i < i_samples; i++ )
-    {
-        for( j = 0; j < i_nb_channels; j++ )
-        {
-            p_out[i * i_nb_channels + pi_chan_table[j]] =
-                p_in[i * i_nb_channels + j];
-        }
-    }
+    if( p_dec->p_libvlc->i_cpu & CPU_CAPABILITY_FPU )
+        for( i = 0; i < i_samples; i++ )
+            for( j = 0; j < i_nb_channels; j++ )
+                p_out[i * i_nb_channels + pi_chan_table[j]] =
+                    p_in[i * i_nb_channels + j];
+    else
+        for( i = 0; i < i_samples; i++ )
+            for( j = 0; j < i_nb_channels; j++ )
+                ((uint16_t *)p_out)[i * i_nb_channels + pi_chan_table[j]] =
+                    ((uint16_t *)p_in)[i * i_nb_channels + j];
 }