]> git.sesse.net Git - vlc/blobdiff - src/input/decoder.c
Allows requesting active aout/vout from an input with associated events.
[vlc] / src / input / decoder.c
index 1abbc45a5b9056d872b81bb089b838b53e9d2659..27c6c82859eccc2dadff75318639aeb76a06c32f 100644 (file)
@@ -39,6 +39,7 @@
 #include <vlc_sout.h>
 #include <vlc_codec.h>
 #include <vlc_osd.h>
+#include <vlc_meta.h>
 
 #include <vlc_interface.h>
 #include "audio_output/aout_internal.h"
@@ -46,6 +47,8 @@
 #include "input_internal.h"
 #include "clock.h"
 #include "decoder.h"
+#include "event.h"
+#include "ressource.h"
 
 #include "../video_output/vout_control.h"
 
@@ -53,7 +56,8 @@ static decoder_t *CreateDecoder( input_thread_t *, es_format_t *, int, sout_inst
 static void       DeleteDecoder( decoder_t * );
 
 static void      *DecoderThread( vlc_object_t * );
-static int        DecoderProcess( decoder_t *, block_t * );
+static void       DecoderProcess( decoder_t *, block_t * );
+static void       DecoderError( decoder_t *p_dec, block_t *p_block );
 static void       DecoderOutputChangePause( decoder_t *, bool b_paused, mtime_t i_date );
 static void       DecoderFlush( decoder_t * );
 static void       DecoderSignalBuffering( decoder_t *, bool );
@@ -98,6 +102,11 @@ struct decoder_owner_sys_t
     audio_format_t audio;
     es_format_t    sout;
 
+    /* */
+    bool           b_fmt_description;
+    es_format_t    fmt_description;
+    vlc_meta_t     *p_description;
+
     /* fifo */
     block_fifo_t *p_fifo;
 
@@ -329,14 +338,12 @@ void input_DecoderDelete( decoder_t *p_dec )
 
     vlc_object_kill( p_dec );
 
-    /* Make sure we aren't paused anymore */
+    /* Make sure we aren't paused/buffering/waiting anymore */
     vlc_mutex_lock( &p_owner->lock );
-    if( p_owner->b_paused || p_owner->b_buffering )
-    {
-        p_owner->b_paused = false;
-        p_owner->b_buffering = false;
-        vlc_cond_signal( &p_owner->wait );
-    }
+    p_owner->b_paused = false;
+    p_owner->b_buffering = false;
+    p_owner->b_flushing = true;
+    vlc_cond_signal( &p_owner->wait );
     vlc_mutex_unlock( &p_owner->lock );
 
     vlc_thread_join( p_dec );
@@ -370,7 +377,12 @@ void input_DecoderDecode( decoder_t *p_dec, block_t *p_block )
 
     if( p_owner->p_input->p->b_out_pace_control )
     {
-        block_FifoPace( p_owner->p_fifo, 10, SIZE_MAX );
+        /* The fifo is not consummed when buffering and so will
+         * deadlock vlc.
+         * There is no need to lock as b_buffering is never modify
+         * inside decoder thread. */
+        if( !p_owner->b_buffering )
+            block_FifoPace( p_owner->p_fifo, 10, SIZE_MAX );
     }
     else if( block_FifoSize( p_owner->p_fifo ) > 50000000 /* 50 MB */ )
     {
@@ -566,6 +578,7 @@ void input_DecoderWaitBuffering( decoder_t *p_dec )
 
     vlc_mutex_unlock( &p_owner->lock );
 }
+
 void input_DecoderFrameNext( decoder_t *p_dec, mtime_t *pi_duration )
 {
     decoder_owner_sys_t *p_owner = p_dec->p_owner;
@@ -590,6 +603,34 @@ void input_DecoderFrameNext( decoder_t *p_dec, mtime_t *pi_duration )
     vlc_mutex_unlock( &p_owner->lock );
 }
 
+bool input_DecoderHasFormatChanged( decoder_t *p_dec, es_format_t *p_fmt, vlc_meta_t **pp_meta )
+{
+    decoder_owner_sys_t *p_owner = p_dec->p_owner;
+    bool b_changed;
+
+    vlc_mutex_lock( &p_owner->lock );
+    b_changed = p_owner->b_fmt_description;
+    if( b_changed )
+    {
+        if( p_fmt )
+            es_format_Copy( p_fmt, &p_owner->fmt_description );
+
+        if( pp_meta )
+        {
+            *pp_meta = NULL;
+            if( p_owner->p_description )
+            {
+                *pp_meta = vlc_meta_New();
+                if( *pp_meta )
+                    vlc_meta_Merge( *pp_meta, p_owner->p_description );
+            }
+        }
+        p_owner->b_fmt_description = false;
+    }
+    vlc_mutex_unlock( &p_owner->lock );
+    return b_changed;
+}
+
 /*****************************************************************************
  * Internal functions
  *****************************************************************************/
@@ -660,13 +701,15 @@ static decoder_t * CreateDecoder( input_thread_t *p_input,
     p_dec->pf_get_cc = NULL;
     p_dec->pf_packetize = NULL;
 
-    /* Initialize the decoder fifo */
+    /* Initialize the decoder */
     p_dec->p_module = NULL;
 
     memset( &null_es_format, 0, sizeof(es_format_t) );
     es_format_Copy( &p_dec->fmt_in, fmt );
     es_format_Copy( &p_dec->fmt_out, &null_es_format );
 
+    p_dec->p_description = NULL;
+
     /* Allocate our private structure for the decoder */
     p_dec->p_owner = p_owner = malloc( sizeof( decoder_owner_sys_t ) );
     if( p_dec->p_owner == NULL )
@@ -713,9 +756,9 @@ static decoder_t * CreateDecoder( input_thread_t *p_input,
 
     /* Find a suitable decoder/packetizer module */
     if( i_object_type == VLC_OBJECT_DECODER )
-        p_dec->p_module = module_need( p_dec, "decoder", "$codec", 0 );
+        p_dec->p_module = module_need( p_dec, "decoder", "$codec", false );
     else
-        p_dec->p_module = module_need( p_dec, "packetizer", "$packetizer", 0 );
+        p_dec->p_module = module_need( p_dec, "packetizer", "$packetizer", false );
 
     /* Check if decoder requires already packetized data */
     if( i_object_type == VLC_OBJECT_DECODER &&
@@ -735,7 +778,7 @@ static decoder_t * CreateDecoder( input_thread_t *p_input,
 
             p_dec->p_owner->p_packetizer->p_module =
                 module_need( p_dec->p_owner->p_packetizer,
-                             "packetizer", "$packetizer", 0 );
+                             "packetizer", "$packetizer", false );
 
             if( !p_dec->p_owner->p_packetizer->p_module )
             {
@@ -768,6 +811,10 @@ static decoder_t * CreateDecoder( input_thread_t *p_input,
     vlc_mutex_init( &p_owner->lock );
     vlc_cond_init( &p_owner->wait );
 
+    p_owner->b_fmt_description = false;
+    es_format_Init( &p_owner->fmt_description, UNKNOWN_ES, 0 );
+    p_owner->p_description = NULL;
+
     p_owner->b_paused = false;
     p_owner->pause.i_date = 0;
     p_owner->pause.i_ignore = 0;
@@ -816,24 +863,25 @@ static void *DecoderThread( vlc_object_t *p_this )
     for( ;; )
     {
         block_t *p_block = block_FifoGet( p_owner->p_fifo );
+
         /* Make sure there is no cancellation point other than this one^^.
          * If you need one, be sure to push cleanup of p_block. */
         DecoderSignalBuffering( p_dec, p_block == NULL );
 
         if( p_block )
         {
+            int canc = vlc_savecancel();
+
             if( p_dec->b_error )
-            {   /* Trash all received PES packets */
-                block_Release( p_block );
-            }
-            else if( DecoderProcess( p_dec, p_block ) != VLC_SUCCESS )
-            {
-                break;
-            }
+                DecoderError( p_dec, p_block );
+            else
+                DecoderProcess( p_dec, p_block );
+
+            vlc_restorecancel( canc );
         }
+        /* Ensure fast cancellation in case the fifo is not empty */
+        vlc_testcancel();
     }
-
-    DecoderSignalBuffering( p_dec, true );
     return NULL;
 }
 
@@ -1118,12 +1166,23 @@ static void DecoderPlayAudio( decoder_t *p_dec, aout_buffer_t *p_audio,
             i_rate > INPUT_RATE_DEFAULT*AOUT_MAX_INPUT_RATE )
             b_reject = true;
 
-        if( !b_reject )
+        /* Do not wait against unprotected date */
+        const mtime_t i_deadline = p_audio->start_date - AOUT_MAX_PREPARE_TIME;
+        while( !b_reject && i_deadline > mdate() )
         {
-            /* Wait if we are too early
-             * FIXME that's plain ugly to do it here */
-            mwait( p_audio->start_date - AOUT_MAX_PREPARE_TIME );
+            vlc_mutex_lock( &p_owner->lock );
+            if( p_owner->b_flushing || p_dec->b_die )
+            {
+                b_reject = true;
+                vlc_mutex_unlock( &p_owner->lock );
+                break;
+            }
+            vlc_cond_timedwait( &p_owner->wait, &p_owner->lock, i_deadline );
+            vlc_mutex_unlock( &p_owner->lock );
+        }
 
+        if( !b_reject )
+        {
             if( !aout_DecPlay( p_aout, p_aout_input, p_audio, i_rate ) )
                 *pi_played_sum += 1;
             *pi_lost_sum += aout_DecGetResetLost( p_aout, p_aout_input );
@@ -1168,8 +1227,6 @@ static void DecoderDecodeAudio( decoder_t *p_dec, block_t *p_block )
     {
         aout_instance_t *p_aout = p_owner->p_aout;
         aout_input_t    *p_aout_input = p_owner->p_aout_input;
-        int i_lost = 0;
-        int i_played;
 
         if( p_dec->b_die )
         {
@@ -1318,9 +1375,6 @@ static void DecoderPlayVideo( decoder_t *p_dec, picture_t *p_picture,
         }
 
         /* */
-        int i_rate = INPUT_RATE_DEFAULT;
-        mtime_t i_delay;
-
         if( b_buffering_first )
         {
             assert( p_owner->buffer.b_first );
@@ -1328,10 +1382,10 @@ static void DecoderPlayVideo( decoder_t *p_dec, picture_t *p_picture,
             msg_Dbg( p_dec, "Received first picture" );
             p_owner->buffer.b_first = false;
             p_picture->b_force = true;
-            i_delay = 0;
-            if( p_owner->p_clock )
-                i_rate = input_clock_GetRate( p_owner->p_clock );
         }
+
+        int i_rate = INPUT_RATE_DEFAULT;
+        mtime_t i_delay;
         DecoderFixTs( p_dec, &p_picture->date, NULL, NULL,
                       &i_rate, &i_delay, false );
 
@@ -1532,13 +1586,12 @@ static void DecoderPlaySout( decoder_t *p_dec, block_t *p_sout_block,
     decoder_owner_sys_t *p_owner = p_dec->p_owner;
 
     assert( p_owner->p_clock );
+    assert( !p_sout_block->p_next );
 
     vlc_mutex_lock( &p_owner->lock );
 
     if( p_owner->b_buffering || p_owner->buffer.p_block )
     {
-        p_sout_block->p_next = NULL;
-
         block_ChainLastAppend( &p_owner->buffer.pp_block_next, p_sout_block );
 
         p_owner->buffer.i_count++;
@@ -1574,6 +1627,7 @@ static void DecoderPlaySout( decoder_t *p_dec, block_t *p_sout_block,
             if( !b_has_more )
                 p_owner->buffer.pp_block_next = &p_owner->buffer.p_block;
         }
+        p_sout_block->p_next = NULL;
 
         DecoderFixTs( p_dec, &p_sout_block->i_dts, &p_sout_block->i_pts,
                       &p_sout_block->i_length,
@@ -1822,7 +1876,7 @@ static void DecoderProcessSpu( decoder_t *p_dec, block_t *p_block, bool b_flush
         stats_UpdateInteger( p_dec, p_input->p->counters.p_decoded_sub, 1, NULL );
         vlc_mutex_unlock( &p_input->p->counters.counters_lock );
 
-        p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
+        p_vout = input_ressource_HoldVout( p_input->p->p_ressource );
         if( p_vout && p_owner->p_spu_vout == p_vout )
         {
             /* Preroll does not work very well with subtitle */
@@ -1847,7 +1901,7 @@ static void DecoderProcessSpu( decoder_t *p_dec, block_t *p_block, bool b_flush
 
     if( b_flush && p_owner->p_spu_vout )
     {
-        p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
+        p_vout = input_ressource_HoldVout( p_input->p->p_ressource );
 
         if( p_vout && p_owner->p_spu_vout == p_vout )
             spu_Control( p_vout->p_spu, SPU_CHANNEL_CLEAR,
@@ -1858,6 +1912,17 @@ static void DecoderProcessSpu( decoder_t *p_dec, block_t *p_block, bool b_flush
     }
 }
 
+/* */
+static void DecoderProcessOnFlush( decoder_t *p_dec )
+{
+    decoder_owner_sys_t *p_owner = p_dec->p_owner;
+
+    vlc_mutex_lock( &p_owner->lock );
+    DecoderFlushBuffering( p_dec );
+    vlc_mutex_unlock( &p_owner->lock );
+
+    DecoderSignalFlushed( p_dec );
+}
 /**
  * Decode a block
  *
@@ -1865,7 +1930,7 @@ static void DecoderProcessSpu( decoder_t *p_dec, block_t *p_block, bool b_flush
  * \param p_block the block to decode
  * \return VLC_SUCCESS or an error code
  */
-static int DecoderProcess( decoder_t *p_dec, block_t *p_block )
+static void DecoderProcess( decoder_t *p_dec, block_t *p_block )
 {
     decoder_owner_sys_t *p_owner = (decoder_owner_sys_t *)p_dec->p_owner;
     const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
@@ -1874,10 +1939,9 @@ static int DecoderProcess( decoder_t *p_dec, block_t *p_block )
     {
         assert( !b_flush_request );
         block_Release( p_block );
-        return VLC_SUCCESS;
+        return;
     }
 
-    int canc = vlc_savecancel();
 #ifdef ENABLE_SOUT
     if( p_dec->i_object_type == VLC_OBJECT_PACKETIZER )
     {
@@ -1922,18 +1986,22 @@ static int DecoderProcess( decoder_t *p_dec, block_t *p_block )
 
     /* */
     if( b_flush_request )
-    {
-        vlc_mutex_lock( &p_owner->lock );
-        DecoderFlushBuffering( p_dec );
-        vlc_mutex_unlock( &p_owner->lock );
+        DecoderProcessOnFlush( p_dec );
+}
 
-        DecoderSignalFlushed( p_dec );
-    }
-    vlc_restorecancel( canc );
+static void DecoderError( decoder_t *p_dec, block_t *p_block )
+{
+    const bool b_flush_request = p_block && (p_block->i_flags & BLOCK_FLAG_CORE_FLUSH);
+
+    /* */
+    if( p_block )
+        block_Release( p_block );
 
-    return p_dec->b_error ? VLC_EGENERIC : VLC_SUCCESS;
+    if( b_flush_request )
+        DecoderProcessOnFlush( p_dec );
 }
 
+
 /**
  * Destroys a decoder object
  *
@@ -1962,7 +2030,9 @@ static void DeleteDecoder( decoder_t * p_dec )
         aout_DecDelete( p_owner->p_aout, p_owner->p_aout_input );
     if( p_owner->p_aout )
     {
-        vlc_object_release( p_owner->p_aout );
+        input_ressource_RequestAout( p_owner->p_input->p->p_ressource,
+                                     p_owner->p_aout );
+        input_SendEventAout( p_owner->p_input );
         p_owner->p_aout = NULL;
     }
     if( p_owner->p_vout )
@@ -1970,9 +2040,9 @@ static void DeleteDecoder( decoder_t * p_dec )
         /* Hack to make sure all the the pictures are freed by the decoder */
         vout_FixLeaks( p_owner->p_vout, true );
 
-        /* We are about to die. Reattach video output to p_vlc. */
-        vout_Request( p_dec, p_owner->p_vout, NULL );
-        var_SetBool( p_owner->p_input, "intf-change-vout", true );
+        /* */
+        input_ressource_RequestVout( p_owner->p_input->p->p_ressource, p_owner->p_vout, NULL );
+        input_SendEventVout( p_owner->p_input );
     }
 
 #ifdef ENABLE_SOUT
@@ -1987,17 +2057,22 @@ static void DeleteDecoder( decoder_t * p_dec )
     {
         vout_thread_t *p_vout;
 
-        p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
-        if( p_vout && p_owner->p_spu_vout == p_vout )
+        p_vout = input_ressource_HoldVout( p_owner->p_input->p->p_ressource );
+        if( p_vout )
         {
-            spu_Control( p_vout->p_spu, SPU_CHANNEL_CLEAR,
-                         p_owner->i_spu_channel );
+            if( p_owner->p_spu_vout == p_vout )
+                spu_Control( p_vout->p_spu, SPU_CHANNEL_CLEAR, p_owner->i_spu_channel );
             vlc_object_release( p_vout );
         }
     }
 
     es_format_Clean( &p_dec->fmt_in );
     es_format_Clean( &p_dec->fmt_out );
+    if( p_dec->p_description )
+        vlc_meta_Delete( p_dec->p_description );
+    es_format_Clean( &p_owner->fmt_description );
+    if( p_owner->p_description )
+        vlc_meta_Delete( p_owner->p_description );
 
     if( p_owner->p_packetizer )
     {
@@ -2005,6 +2080,8 @@ static void DeleteDecoder( decoder_t * p_dec )
                        p_owner->p_packetizer->p_module );
         es_format_Clean( &p_owner->p_packetizer->fmt_in );
         es_format_Clean( &p_owner->p_packetizer->fmt_out );
+        if( p_owner->p_packetizer->p_description )
+            vlc_meta_Delete( p_owner->p_packetizer->p_description );
         vlc_object_detach( p_owner->p_packetizer );
         vlc_object_release( p_owner->p_packetizer );
     }
@@ -2020,6 +2097,35 @@ static void DeleteDecoder( decoder_t * p_dec )
 /*****************************************************************************
  * Buffers allocation callbacks for the decoders
  *****************************************************************************/
+static void DecoderUpdateFormatLocked( decoder_t *p_dec )
+{
+    decoder_owner_sys_t *p_owner = p_dec->p_owner;
+
+    vlc_assert_locked( &p_owner->lock );
+
+    p_owner->b_fmt_description = true;
+
+    /* Copy es_format */
+    es_format_Clean( &p_owner->fmt_description );
+    es_format_Copy( &p_owner->fmt_description, &p_dec->fmt_out );
+
+    /* Move p_description */
+    if( p_owner->p_description && p_dec->p_description )
+        vlc_meta_Delete( p_owner->p_description );
+    p_owner->p_description = p_dec->p_description;
+    p_dec->p_description = NULL;
+}
+static vout_thread_t *aout_request_vout( void *p_private,
+                                         vout_thread_t *p_vout, video_format_t *p_fmt )
+{
+    decoder_t *p_dec = p_private;
+
+    p_vout = input_ressource_RequestVout( p_dec->p_owner->p_input->p->p_ressource, p_vout, p_fmt );
+    input_SendEventVout( p_dec->p_owner->p_input );
+
+    return p_vout;
+}
+
 static aout_buffer_t *aout_new_buffer( decoder_t *p_dec, int i_samples )
 {
     decoder_owner_sys_t *p_owner = p_dec->p_owner;
@@ -2051,6 +2157,7 @@ static aout_buffer_t *aout_new_buffer( decoder_t *p_dec, int i_samples )
         audio_sample_format_t format;
         aout_input_t *p_aout_input;
         aout_instance_t *p_aout;
+        aout_request_vout_t request_vout;
 
         p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
         p_owner->audio = p_dec->fmt_out.audio;
@@ -2072,15 +2179,25 @@ static aout_buffer_t *aout_new_buffer( decoder_t *p_dec, int i_samples )
             }
         }
 
+        request_vout.pf_request_vout = aout_request_vout;
+        request_vout.p_private = p_dec;
+
         p_aout = p_owner->p_aout;
+        if( !p_aout )
+            p_aout = input_ressource_RequestAout( p_owner->p_input->p->p_ressource, NULL );
         p_aout_input = aout_DecNew( p_dec, &p_aout,
-                                    &format, &p_dec->fmt_out.audio_replay_gain );
+                                    &format, &p_dec->fmt_out.audio_replay_gain, &request_vout );
 
         vlc_mutex_lock( &p_owner->lock );
+
         p_owner->p_aout = p_aout;
         p_owner->p_aout_input = p_aout_input;
+        DecoderUpdateFormatLocked( p_dec );
+
         vlc_mutex_unlock( &p_owner->lock );
 
+        input_SendEventAout( p_owner->p_input );
+
         if( p_owner->p_aout_input == NULL )
         {
             msg_Err( p_dec, "failed to create audio output" );
@@ -2181,13 +2298,17 @@ static picture_t *vout_new_buffer( decoder_t *p_dec )
         p_owner->p_vout = NULL;
         vlc_mutex_unlock( &p_owner->lock );
 
-        p_vout = vout_Request( p_dec, p_vout, &p_dec->fmt_out.video );
+        p_vout = input_ressource_RequestVout( p_owner->p_input->p->p_ressource,
+                                              p_vout, &p_dec->fmt_out.video );
 
         vlc_mutex_lock( &p_owner->lock );
         p_owner->p_vout = p_vout;
+
+        DecoderUpdateFormatLocked( p_dec );
+
         vlc_mutex_unlock( &p_owner->lock );
 
-        var_SetBool( p_owner->p_input, "intf-change-vout", true );
+        input_SendEventVout( p_owner->p_input );
         if( p_vout == NULL )
         {
             msg_Err( p_dec, "failed to create video output" );
@@ -2265,7 +2386,7 @@ static subpicture_t *spu_new_buffer( decoder_t *p_dec )
         if( p_dec->b_die || p_dec->b_error )
             break;
 
-        p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
+        p_vout = input_ressource_HoldVout( p_owner->p_input->p->p_ressource );
         if( p_vout )
             break;
 
@@ -2310,7 +2431,7 @@ static void spu_del_buffer( decoder_t *p_dec, subpicture_t *p_subpic )
     decoder_owner_sys_t *p_owner = p_dec->p_owner;
     vout_thread_t *p_vout = NULL;
 
-    p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
+    p_vout = input_ressource_HoldVout( p_owner->p_input->p->p_ressource );
     if( !p_vout || p_owner->p_spu_vout != p_vout )
     {
         if( p_vout )