]> git.sesse.net Git - vlc/blobdiff - src/input/decoder.c
Properly malloc(), memcpy() and free() the quantizer matrix. (Somebody please patch...
[vlc] / src / input / decoder.c
index b4beeddf7ea3ce6632c8ed263373eefdb05cacb9..49df3abd4668542f0000fe081c1fefb9052895d8 100644 (file)
 #include "stream_output/stream_output.h"
 #include "input_internal.h"
 
-static decoder_t * CreateDecoder( input_thread_t *, es_format_t *, int );
+static decoder_t * CreateDecoder( input_thread_t *, es_format_t *, int, sout_instance_t *p_sout );
 static void        DeleteDecoder( decoder_t * );
 
-static int         DecoderThread( decoder_t * );
+static void*        DecoderThread( vlc_object_t * );
 static int         DecoderDecode( decoder_t * p_dec, block_t *p_block );
 
 /* Buffers allocation callbacks for the decoders */
@@ -148,7 +148,7 @@ mtime_t decoder_GetDisplayDate( decoder_t *p_dec, mtime_t i_ts )
  * \return the spawned decoder object
  */
 decoder_t *input_DecoderNew( input_thread_t *p_input,
-                             es_format_t *fmt, bool b_force_decoder )
+                             es_format_t *fmt, sout_instance_t *p_sout  )
 {
     decoder_t   *p_dec = NULL;
     vlc_value_t val;
@@ -157,10 +157,10 @@ decoder_t *input_DecoderNew( input_thread_t *p_input,
     (void)b_force_decoder;
 #else
     /* If we are in sout mode, search for packetizer module */
-    if( p_input->p->p_sout && !b_force_decoder )
+    if( p_sout )
     {
         /* Create the decoder configuration structure */
-        p_dec = CreateDecoder( p_input, fmt, VLC_OBJECT_PACKETIZER );
+        p_dec = CreateDecoder( p_input, fmt, VLC_OBJECT_PACKETIZER, p_sout );
         if( p_dec == NULL )
         {
             msg_Err( p_input, "could not create packetizer" );
@@ -173,7 +173,7 @@ decoder_t *input_DecoderNew( input_thread_t *p_input,
 #endif
     {
         /* Create the decoder configuration structure */
-        p_dec = CreateDecoder( p_input, fmt, VLC_OBJECT_DECODER );
+        p_dec = CreateDecoder( p_input, fmt, VLC_OBJECT_DECODER, p_sout );
         if( p_dec == NULL )
         {
             msg_Err( p_input, "could not create decoder" );
@@ -192,8 +192,7 @@ decoder_t *input_DecoderNew( input_thread_t *p_input,
         return NULL;
     }
 
-    if( p_input->p->p_sout && p_input->p->input.b_can_pace_control &&
-        !b_force_decoder )
+    if( p_sout && p_sout == p_input->p->p_sout && p_input->p->input.b_can_pace_control )
     {
         msg_Dbg( p_input, "stream out mode -> no decoder thread" );
         p_dec->p_owner->b_own_thread = false;
@@ -375,7 +374,7 @@ int input_DecoderSetCcState( decoder_t *p_dec, bool b_decode, int i_channel )
         es_format_t fmt;
 
         es_format_Init( &fmt, SPU_ES, fcc[i_channel] );
-        p_cc = CreateDecoder( p_owner->p_input, &fmt, VLC_OBJECT_DECODER );
+        p_cc = CreateDecoder( p_owner->p_input, &fmt, VLC_OBJECT_DECODER, p_dec->p_owner->p_sout );
         if( !p_cc )
         {
             msg_Err( p_dec, "could not create decoder" );
@@ -437,7 +436,7 @@ int input_DecoderGetCcState( decoder_t *p_dec, bool *pb_decode, int i_channel )
  * \return the decoder object
  */
 static decoder_t * CreateDecoder( input_thread_t *p_input,
-                                  es_format_t *fmt, int i_object_type )
+                                  es_format_t *fmt, int i_object_type, sout_instance_t *p_sout )
 {
     decoder_t *p_dec;
     decoder_owner_sys_t *p_owner;
@@ -447,11 +446,11 @@ static decoder_t * CreateDecoder( input_thread_t *p_input,
     if( p_dec == NULL )
         return NULL;
 
-    p_dec->pf_decode_audio = 0;
-    p_dec->pf_decode_video = 0;
-    p_dec->pf_decode_sub = 0;
-    p_dec->pf_get_cc = 0;
-    p_dec->pf_packetize = 0;
+    p_dec->pf_decode_audio = NULL;
+    p_dec->pf_decode_video = NULL;
+    p_dec->pf_decode_sub = NULL;
+    p_dec->pf_get_cc = NULL;
+    p_dec->pf_packetize = NULL;
 
     /* Initialize the decoder fifo */
     p_dec->p_module = NULL;
@@ -475,7 +474,7 @@ static decoder_t * CreateDecoder( input_thread_t *p_input,
     p_dec->p_owner->p_vout = NULL;
     p_dec->p_owner->p_spu_vout = NULL;
     p_dec->p_owner->i_spu_channel = 0;
-    p_dec->p_owner->p_sout = p_input->p->p_sout;
+    p_dec->p_owner->p_sout = p_sout;
     p_dec->p_owner->p_sout_input = NULL;
     p_dec->p_owner->p_packetizer = NULL;
 
@@ -574,11 +573,12 @@ static decoder_t * CreateDecoder( input_thread_t *p_input,
  * The decoding main loop
  *
  * \param p_dec the decoder
- * \return 0
  */
-static int DecoderThread( decoder_t * p_dec )
+static void* DecoderThread( vlc_object_t *p_this )
 {
+    decoder_t * p_dec = (decoder_t *)p_this;
     block_t *p_block;
+    int canc = vlc_savecancel ();
 
     /* The decoder's main loop */
     while( !p_dec->b_die && !p_dec->b_error )
@@ -604,8 +604,8 @@ static int DecoderThread( decoder_t * p_dec )
     /* We do it here because of the dll loader that wants close() in the
      * same thread than open()/decode() */
     module_Unneed( p_dec, p_dec->p_module );
-
-    return 0;
+    vlc_restorecancel (canc);
+    return NULL;
 }
 
 static inline void DecoderUpdatePreroll( int64_t *pi_preroll, const block_t *p )
@@ -709,6 +709,7 @@ static void VoutDisplayedPicture( vout_thread_t *p_vout, picture_t *p_pic )
     else
     {
         p_pic->i_status = DESTROYED_PICTURE;
+        picture_CleanupQuant( p_pic );
         p_vout->i_heap_size--;
     }
 
@@ -733,33 +734,34 @@ static void VoutFlushPicture( vout_thread_t *p_vout )
     vlc_mutex_unlock( &p_vout->picture_lock );
 }
 
-
-static void optimize_video_pts( decoder_t *p_dec )
+static void DecoderOptimizePtsDelay( decoder_t *p_dec )
 {
-    picture_t * oldest_pict = NULL;
-    picture_t * youngest_pict = NULL;
-    int i;
+    input_thread_t *p_input = p_dec->p_owner->p_input;
+    vout_thread_t *p_vout = p_dec->p_owner->p_vout;
+    input_thread_private_t *p_priv = p_input->p;
 
-    input_thread_t * p_input = p_dec->p_owner->p_input;
-    vout_thread_t * p_vout = p_dec->p_owner->p_vout;
-    input_thread_private_t * p_priv = p_input->p;
+    picture_t *p_old = NULL;
+    picture_t *p_young = NULL;
+    int i;
 
     /* Enable with --auto-adjust-pts-delay */
-    if( !p_priv->pts_adjust.auto_adjust ) return;
+    if( !p_priv->pts_adjust.b_auto_adjust )
+        return;
 
     for( i = 0; i < I_RENDERPICTURES; i++ )
     {
-        picture_t * pic = PP_RENDERPICTURE[i];
-        if( pic->i_status != READY_PICTURE )
+        picture_t *p_pic = PP_RENDERPICTURE[i];
+
+        if( p_pic->i_status != READY_PICTURE )
             continue;
 
-        if( !oldest_pict || pic->date < oldest_pict->date )
-            oldest_pict = pic;
-        if( !youngest_pict || pic->date > youngest_pict->date )
-            youngest_pict = pic;
+        if( !p_old || p_pic->date < p_old->date )
+            p_old = p_pic;
+        if( !p_young || p_pic->date > p_young->date )
+            p_young = p_pic;
     }
 
-    if( !youngest_pict || !oldest_pict )
+    if( !p_young || !p_old )
         return;
 
     /* Try to find if we can reduce the pts
@@ -774,59 +776,58 @@ static void optimize_video_pts( decoder_t *p_dec )
      * pts<->dts delay in the muxed stream. That is
      * why we may end up in having a negative pts_delay,
      * to compensate that artificial delay. */
-    mtime_t buffer_size = youngest_pict->date - oldest_pict->date;
-    int64_t pts_slide = 0;
-    if( buffer_size < 10000 )
+    const mtime_t i_buffer_length = p_young->date - p_old->date;
+    int64_t i_pts_slide = 0;
+    if( i_buffer_length < 10000 )
     {
         if( p_priv->pts_adjust.i_num_faulty > 10 )
         {
-            pts_slide = __MAX(p_input->i_pts_delay *3 / 2, 10000);
+            i_pts_slide = __MAX(p_input->i_pts_delay *3 / 2, 10000);
             p_priv->pts_adjust.i_num_faulty = 0;
         }
-        if( p_priv->pts_adjust.to_high )
+        if( p_priv->pts_adjust.b_to_high )
         {
-            p_priv->pts_adjust.to_high = !p_priv->pts_adjust.to_high;
+            p_priv->pts_adjust.b_to_high = !p_priv->pts_adjust.b_to_high;
             p_priv->pts_adjust.i_num_faulty = 0;
         }
         p_priv->pts_adjust.i_num_faulty++;
     }
-    else if( buffer_size > 100000 )
+    else if( i_buffer_length > 100000 )
     {
         if( p_priv->pts_adjust.i_num_faulty > 25 )
         {
-            pts_slide = -buffer_size/2;
+            i_pts_slide = -i_buffer_length/2;
             p_priv->pts_adjust.i_num_faulty = 0;
         }
-        if( p_priv->pts_adjust.to_high )
+        if( p_priv->pts_adjust.b_to_high )
         {
-            p_priv->pts_adjust.to_high = !p_priv->pts_adjust.to_high;
+            p_priv->pts_adjust.b_to_high = !p_priv->pts_adjust.b_to_high;
             p_priv->pts_adjust.i_num_faulty = 0;
         }
         p_priv->pts_adjust.i_num_faulty++;
     }
-    if( pts_slide )
+    if( i_pts_slide != 0 )
     {
-        mtime_t origi_delay = p_input->i_pts_delay;
+        const mtime_t i_pts_delay_org = p_input->i_pts_delay;
 
-        p_input->i_pts_delay += pts_slide;
+        p_input->i_pts_delay += i_pts_slide;
 
         /* Don't play with the pts delay for more than -2<->3sec */
         if( p_input->i_pts_delay < -2000000 )
             p_input->i_pts_delay = -2000000;
         else if( p_input->i_pts_delay > 3000000 )
             p_input->i_pts_delay = 3000000;
-        pts_slide = p_input->i_pts_delay - origi_delay;
+        i_pts_slide = p_input->i_pts_delay - i_pts_delay_org;
 
         msg_Dbg( p_input, "Sliding the pts by %dms pts delay at %dms picture buffer was %dms",
-            (int)pts_slide/1000, (int)p_input->i_pts_delay/1000, (int)buffer_size/1000);
+            (int)i_pts_slide/1000, (int)p_input->i_pts_delay/1000, (int)i_buffer_length/1000);
 
         vlc_mutex_lock( &p_vout->picture_lock );
         /* Slide all the picture */
         for( i = 0; i < I_RENDERPICTURES; i++ )
-            PP_RENDERPICTURE[i]->date += pts_slide;
+            PP_RENDERPICTURE[i]->date += i_pts_slide;
         /* FIXME: slide aout/spu */
         vlc_mutex_unlock( &p_vout->picture_lock );
-
     }
 }
 
@@ -871,7 +872,7 @@ static void DecoderDecodeVideo( decoder_t *p_dec, block_t *p_block )
 
         vout_DatePicture( p_vout, p_pic, p_pic->date );
 
-        optimize_video_pts( p_dec );
+        DecoderOptimizePtsDelay( p_dec );
 
         vout_DisplayPicture( p_vout, p_pic );
     }
@@ -901,7 +902,7 @@ static int DecoderDecode( decoder_t *p_dec, block_t *p_block )
         block_t *p_sout_block;
 
         while( ( p_sout_block =
-                     p_dec->pf_packetize( p_dec, p_block ? &p_block : 0 ) ) )
+                     p_dec->pf_packetize( p_dec, p_block ? &p_block : NULL ) ) )
         {
             if( !p_dec->p_owner->p_sout_input )
             {
@@ -1124,7 +1125,7 @@ static void DeleteDecoder( decoder_t * p_dec )
 #undef p_pic
 
         /* We are about to die. Reattach video output to p_vlc. */
-        vout_Request( p_dec, p_dec->p_owner->p_vout, 0 );
+        vout_Request( p_dec, p_dec->p_owner->p_vout, NULL );
     }
 
 #ifdef ENABLE_SOUT
@@ -1235,6 +1236,9 @@ static void aout_del_buffer( decoder_t *p_dec, aout_buffer_t *p_buffer )
                           p_dec->p_owner->p_aout_input, p_buffer );
 }
 
+
+int vout_CountPictureAvailable( vout_thread_t *p_vout );
+
 static picture_t *vout_new_buffer( decoder_t *p_dec )
 {
     decoder_owner_sys_t *p_sys = (decoder_owner_sys_t *)p_dec->p_owner;
@@ -1317,36 +1321,54 @@ static picture_t *vout_new_buffer( decoder_t *p_dec )
             p_sys->p_vout->render.i_bmask = p_sys->video.i_bmask;
     }
 
-    /* Get a new picture */
-    while( !(p_pic = vout_CreatePicture( p_sys->p_vout, 0, 0, 0 ) ) )
+    /* Get a new picture
+     */
+    for( p_pic = NULL; ; )
     {
-        int i_pic, i_ready_pic = 0;
+        int i_pic, i_ready_pic;
 
         if( p_dec->b_die || p_dec->b_error )
-        {
             return NULL;
+
+        /* The video filter chain required that there is always 1 free buffer
+         * that it will use as temporary one. It will release the temporary
+         * buffer once its work is done, so this check is safe even if we don't
+         * lock around both count() and create().
+         */
+        if( vout_CountPictureAvailable( p_sys->p_vout ) >= 2 )
+        {
+            p_pic = vout_CreatePicture( p_sys->p_vout, 0, 0, 0 );
+            if( p_pic )
+                break;
         }
 
 #define p_pic p_dec->p_owner->p_vout->render.pp_picture[i_pic]
         /* Check the decoder doesn't leak pictures */
-        for( i_pic = 0; i_pic < p_dec->p_owner->p_vout->render.i_pictures;
-             i_pic++ )
+        for( i_pic = 0, i_ready_pic = 0; i_pic < p_dec->p_owner->p_vout->render.i_pictures; i_pic++ )
         {
             if( p_pic->i_status == READY_PICTURE )
             {
-                if( i_ready_pic++ > 0 ) break;
-                else continue;
-            }
+                i_ready_pic++;
+                /* If we have at least 2 ready pictures, wait for the vout thread to
+                 * process one */
+                if( i_ready_pic >= 2 )
+                    break;
 
-            if( p_pic->i_status != DISPLAYED_PICTURE &&
-                p_pic->i_status != RESERVED_PICTURE &&
-                p_pic->i_status != READY_PICTURE ) break;
+                continue;
+            }
 
-            if( !p_pic->i_refcount && p_pic->i_status != RESERVED_PICTURE )
-                break;
+            if( p_pic->i_status == DISPLAYED_PICTURE )
+            {
+                /* If at least one displayed picture is not referenced
+                 * let vout free it */
+                if( p_pic->i_refcount == 0 )
+                    break;
+            }
         }
         if( i_pic == p_dec->p_owner->p_vout->render.i_pictures )
         {
+            /* Too many pictures are still referenced, there is probably a bug
+             * with the decoder */
             msg_Err( p_dec, "decoder is leaking pictures, resetting the heap" );
 
             /* Just free all the pictures */