]> git.sesse.net Git - vlc/blobdiff - src/video_output/vout_pictures.c
Added picture_Export (internal) helper.
[vlc] / src / video_output / vout_pictures.c
index d0e124e1490efbd144a92134e23597ad43baa5d0..759f5db842daeed89ffed9e2ed7ca7b74f64b828 100644 (file)
 #ifdef HAVE_CONFIG_H
 # include "config.h"
 #endif
+#include <assert.h>
 
 #include <vlc_common.h>
+#include <libvlc.h>
 #include <vlc_vout.h>
 #include <vlc_osd.h>
 #include <vlc_filter.h>
-#include "vout_pictures.h"
+#include <vlc_image.h>
+#include <vlc_block.h>
 
-#include <assert.h>
+#include "vout_pictures.h"
+#include "vout_internal.h"
 
 /**
  * Display a picture
  *
  * Remove the reservation flag of a picture, which will cause it to be ready
- * for display. The picture won't be displayed until vout_DatePicture has been
- * called.
+ * for display.
  */
 void vout_DisplayPicture( vout_thread_t *p_vout, picture_t *p_pic )
 {
     vlc_mutex_lock( &p_vout->picture_lock );
-    switch( p_pic->i_status )
+
+    if( p_pic->i_status == RESERVED_PICTURE )
     {
-    case RESERVED_PICTURE:
-        p_pic->i_status = RESERVED_DISP_PICTURE;
-        break;
-    case RESERVED_DATED_PICTURE:
         p_pic->i_status = READY_PICTURE;
-        break;
-    default:
-        msg_Err( p_vout, "picture to display %p has invalid status %d",
-                         p_pic, p_pic->i_status );
-        break;
+        vlc_cond_signal( &p_vout->p->picture_wait );
     }
-
-    vlc_mutex_unlock( &p_vout->picture_lock );
-}
-
-/**
- * Date a picture
- *
- * Remove the reservation flag of a picture, which will cause it to be ready
- * for display. The picture won't be displayed until vout_DisplayPicture has
- * been called.
- * \param p_vout The vout in question
- * \param p_pic The picture to date
- * \param date The date to display the picture
- */
-void vout_DatePicture( vout_thread_t *p_vout,
-                       picture_t *p_pic, mtime_t date )
-{
-    vlc_mutex_lock( &p_vout->picture_lock );
-    p_pic->date = date;
-    switch( p_pic->i_status )
+    else
     {
-    case RESERVED_PICTURE:
-        p_pic->i_status = RESERVED_DATED_PICTURE;
-        break;
-    case RESERVED_DISP_PICTURE:
-        p_pic->i_status = READY_PICTURE;
-        break;
-    default:
-        msg_Err( p_vout, "picture to date %p has invalid status %d",
+        msg_Err( p_vout, "picture to display %p has invalid status %d",
                          p_pic, p_pic->i_status );
-        break;
     }
+    p_vout->p->i_picture_qtype = p_pic->i_qtype;
 
     vlc_mutex_unlock( &p_vout->picture_lock );
 }
@@ -213,8 +183,6 @@ picture_t *vout_CreatePicture( vout_thread_t *p_vout,
             p_freepic->i_nb_fields          = i_nb_fields;
             p_freepic->b_top_field_first    = b_top_field_first;
 
-            p_freepic->i_matrix_coefficients = 1;
-
             p_vout->i_heap_size++;
         }
         else
@@ -238,31 +206,75 @@ picture_t *vout_CreatePicture( vout_thread_t *p_vout,
     return( NULL );
 }
 
+/* */
+static void DestroyPicture( vout_thread_t *p_vout, picture_t *p_picture )
+{
+    vlc_assert_locked( &p_vout->picture_lock );
+
+    p_picture->i_status = DESTROYED_PICTURE;
+    p_vout->i_heap_size--;
+    picture_CleanupQuant( p_picture );
+
+    vlc_cond_signal( &p_vout->p->picture_wait );
+}
+
 /**
  * Remove a permanent or reserved picture from the heap
  *
  * This function frees a previously reserved picture or a permanent
  * picture. It is meant to be used when the construction of a picture aborted.
  * Note that the picture will be destroyed even if it is linked !
+ *
+ * TODO remove it, vout_DropPicture should be used instead
  */
 void vout_DestroyPicture( vout_thread_t *p_vout, picture_t *p_pic )
 {
-    vlc_mutex_lock( &p_vout->picture_lock );
-
 #ifndef NDEBUG
     /* Check if picture status is valid */
-    if( (p_pic->i_status != RESERVED_PICTURE) &&
-        (p_pic->i_status != RESERVED_DATED_PICTURE) &&
-        (p_pic->i_status != RESERVED_DISP_PICTURE) )
+    vlc_mutex_lock( &p_vout->picture_lock );
+    if( p_pic->i_status != RESERVED_PICTURE )
     {
         msg_Err( p_vout, "picture to destroy %p has invalid status %d",
                          p_pic, p_pic->i_status );
     }
+    vlc_mutex_unlock( &p_vout->picture_lock );
 #endif
 
-    p_pic->i_status = DESTROYED_PICTURE;
-    p_vout->i_heap_size--;
-    picture_CleanupQuant( p_pic );
+    vout_DropPicture( p_vout, p_pic );
+}
+
+/* */
+void vout_UsePictureLocked( vout_thread_t *p_vout, picture_t *p_picture )
+{
+    vlc_assert_locked( &p_vout->picture_lock );
+    if( p_picture->i_refcount > 0 )
+    {
+        /* Pretend we displayed the picture, but don't destroy
+         * it since the decoder might still need it. */
+        p_picture->i_status = DISPLAYED_PICTURE;
+    }
+    else
+    {
+        /* Destroy the picture without displaying it */
+        DestroyPicture( p_vout, p_picture );
+    }
+}
+
+/* */
+void vout_DropPicture( vout_thread_t *p_vout, picture_t *p_pic  )
+{
+    vlc_mutex_lock( &p_vout->picture_lock );
+
+    if( p_pic->i_status == READY_PICTURE )
+    {
+        /* Grr cannot destroy ready picture by myself so be sure vout won't like it */
+        p_pic->date = 1;
+        vlc_cond_signal( &p_vout->p->picture_wait );
+    }
+    else
+    {
+        vout_UsePictureLocked( p_vout, p_pic );
+    }
 
     vlc_mutex_unlock( &p_vout->picture_lock );
 }
@@ -288,15 +300,15 @@ void vout_LinkPicture( vout_thread_t *p_vout, picture_t *p_pic )
 void vout_UnlinkPicture( vout_thread_t *p_vout, picture_t *p_pic )
 {
     vlc_mutex_lock( &p_vout->picture_lock );
-    p_pic->i_refcount--;
 
-    if( ( p_pic->i_refcount == 0 ) &&
-        ( p_pic->i_status == DISPLAYED_PICTURE ) )
-    {
-        p_pic->i_status = DESTROYED_PICTURE;
-        p_vout->i_heap_size--;
-        picture_CleanupQuant( p_pic );
-    }
+    if( p_pic->i_refcount > 0 )
+        p_pic->i_refcount--;
+    else
+        msg_Err( p_vout, "Invalid picture reference count (%p, %d)",
+                 p_pic, p_pic->i_refcount );
+
+    if( p_pic->i_refcount == 0 && p_pic->i_status == DISPLAYED_PICTURE )
+        DestroyPicture( p_vout, p_pic );
 
     vlc_mutex_unlock( &p_vout->picture_lock );
 }
@@ -320,21 +332,11 @@ static void vout_UnlockPicture( vout_thread_t *p_vout, picture_t *p_picture )
  * before rendering, does the subpicture magic, and tells the video output
  * thread which direct buffer needs to be displayed.
  */
-picture_t * vout_RenderPicture( vout_thread_t *p_vout, picture_t *p_pic,
-                                                       subpicture_t *p_subpic )
+picture_t *vout_RenderPicture( vout_thread_t *p_vout, picture_t *p_pic,
+                               subpicture_t *p_subpic, bool b_paused )
 {
-    int i_scale_width, i_scale_height;
-
     if( p_pic == NULL )
-    {
-        /* XXX: subtitles */
         return NULL;
-    }
-
-    i_scale_width = p_vout->fmt_out.i_visible_width * 1000 /
-        p_vout->fmt_in.i_visible_width;
-    i_scale_height = p_vout->fmt_out.i_visible_height * 1000 /
-        p_vout->fmt_in.i_visible_height;
 
     if( p_pic->i_type == DIRECT_PICTURE )
     {
@@ -348,11 +350,11 @@ picture_t * vout_RenderPicture( vout_thread_t *p_vout, picture_t *p_pic,
             if( vout_LockPicture( p_vout, PP_OUTPUTPICTURE[0] ) )
                 return NULL;
 
-            vout_CopyPicture( p_vout, PP_OUTPUTPICTURE[0], p_pic );
+            picture_Copy( PP_OUTPUTPICTURE[0], p_pic );
 
-            spu_RenderSubpictures( p_vout->p_spu, &p_vout->fmt_out,
-                                   PP_OUTPUTPICTURE[0], p_subpic,
-                                   i_scale_width, i_scale_height );
+            spu_RenderSubpictures( p_vout->p_spu,
+                                   PP_OUTPUTPICTURE[0], &p_vout->fmt_out,
+                                   p_subpic, &p_vout->fmt_in, b_paused );
 
             vout_UnlockPicture( p_vout, PP_OUTPUTPICTURE[0] );
 
@@ -367,7 +369,7 @@ picture_t * vout_RenderPicture( vout_thread_t *p_vout, picture_t *p_pic,
 
     /* Not a direct buffer. We either need to copy it to a direct buffer,
      * or render it if the chroma isn't the same. */
-    if( p_vout->b_direct )
+    if( p_vout->p->b_direct )
     {
         /* Picture is not in a direct buffer, but is exactly the
          * same size as the direct buffers. A memcpy() is enough,
@@ -376,10 +378,10 @@ picture_t * vout_RenderPicture( vout_thread_t *p_vout, picture_t *p_pic,
         if( vout_LockPicture( p_vout, PP_OUTPUTPICTURE[0] ) )
             return NULL;
 
-        vout_CopyPicture( p_vout, PP_OUTPUTPICTURE[0], p_pic );
-        spu_RenderSubpictures( p_vout->p_spu, &p_vout->fmt_out,
-                               PP_OUTPUTPICTURE[0],
-                               p_subpic, i_scale_width, i_scale_height );
+        picture_Copy( PP_OUTPUTPICTURE[0], p_pic );
+        spu_RenderSubpictures( p_vout->p_spu,
+                               PP_OUTPUTPICTURE[0], &p_vout->fmt_out,
+                               p_subpic, &p_vout->fmt_in, b_paused );
 
         vout_UnlockPicture( p_vout, PP_OUTPUTPICTURE[0] );
 
@@ -411,18 +413,18 @@ picture_t * vout_RenderPicture( vout_thread_t *p_vout, picture_t *p_pic,
         }
 
         /* Convert image to the first direct buffer */
-        p_vout->p_chroma->p_owner = (filter_owner_sys_t *)p_tmp_pic;
-        p_vout->p_chroma->pf_video_filter( p_vout->p_chroma, p_pic );
+        p_vout->p->p_chroma->p_owner = (filter_owner_sys_t *)p_tmp_pic;
+        p_vout->p->p_chroma->pf_video_filter( p_vout->p->p_chroma, p_pic );
 
         /* Render subpictures on the first direct buffer */
-        spu_RenderSubpictures( p_vout->p_spu, &p_vout->fmt_out,
-                               p_tmp_pic, p_subpic,
-                               i_scale_width, i_scale_height );
+        spu_RenderSubpictures( p_vout->p_spu,
+                               p_tmp_pic, &p_vout->fmt_out,
+                               p_subpic, &p_vout->fmt_in, b_paused );
 
         if( vout_LockPicture( p_vout, &p_vout->p_picture[0] ) )
             return NULL;
 
-        vout_CopyPicture( p_vout, &p_vout->p_picture[0], p_tmp_pic );
+        picture_Copy( &p_vout->p_picture[0], p_tmp_pic );
     }
     else
     {
@@ -430,13 +432,13 @@ picture_t * vout_RenderPicture( vout_thread_t *p_vout, picture_t *p_pic,
             return NULL;
 
         /* Convert image to the first direct buffer */
-        p_vout->p_chroma->p_owner = (filter_owner_sys_t *)&p_vout->p_picture[0];
-        p_vout->p_chroma->pf_video_filter( p_vout->p_chroma, p_pic );
+        p_vout->p->p_chroma->p_owner = (filter_owner_sys_t *)&p_vout->p_picture[0];
+        p_vout->p->p_chroma->pf_video_filter( p_vout->p->p_chroma, p_pic );
 
         /* Render subpictures on the first direct buffer */
-        spu_RenderSubpictures( p_vout->p_spu, &p_vout->fmt_out,
-                               &p_vout->p_picture[0],
-                               p_subpic, i_scale_width, i_scale_height );
+        spu_RenderSubpictures( p_vout->p_spu,
+                               &p_vout->p_picture[0], &p_vout->fmt_out,
+                               p_subpic, &p_vout->fmt_in, b_paused );
     }
 
     vout_UnlockPicture( p_vout, &p_vout->p_picture[0] );
@@ -450,31 +452,58 @@ picture_t * vout_RenderPicture( vout_thread_t *p_vout, picture_t *p_pic,
  * This function will be accessed by plugins. It calculates the relative
  * position of the output window and the image window.
  */
-void vout_PlacePicture( vout_thread_t *p_vout,
+void vout_PlacePicture( const vout_thread_t *p_vout,
                         unsigned int i_width, unsigned int i_height,
-                        unsigned int *pi_x, unsigned int *pi_y,
-                        unsigned int *pi_width, unsigned int *pi_height )
+                        unsigned int *restrict pi_x,
+                        unsigned int *restrict pi_y,
+                        unsigned int *restrict pi_width,
+                        unsigned int *restrict pi_height )
 {
-    if( (i_width <= 0) || (i_height <=0) )
+    if( i_width <= 0 || i_height <= 0 )
     {
         *pi_width = *pi_height = *pi_x = *pi_y = 0;
         return;
     }
 
-    if( p_vout->b_scale )
+    if( p_vout->b_autoscale )
     {
         *pi_width = i_width;
         *pi_height = i_height;
     }
     else
     {
-        *pi_width = __MIN( i_width, p_vout->fmt_in.i_visible_width );
-        *pi_height = __MIN( i_height, p_vout->fmt_in.i_visible_height );
+        int i_zoom = p_vout->i_zoom;
+        /* be realistic, scaling factor confined between .2 and 10. */
+        if( i_zoom > 10 * ZOOM_FP_FACTOR )      i_zoom = 10 * ZOOM_FP_FACTOR;
+        else if( i_zoom <  ZOOM_FP_FACTOR / 5 ) i_zoom = ZOOM_FP_FACTOR / 5;
+
+        unsigned int i_original_width, i_original_height;
+
+        if( p_vout->fmt_in.i_sar_num >= p_vout->fmt_in.i_sar_den )
+        {
+            i_original_width = p_vout->fmt_in.i_visible_width *
+                               p_vout->fmt_in.i_sar_num / p_vout->fmt_in.i_sar_den;
+            i_original_height =  p_vout->fmt_in.i_visible_height;
+        }
+        else
+        {
+            i_original_width =  p_vout->fmt_in.i_visible_width;
+            i_original_height = p_vout->fmt_in.i_visible_height *
+                                p_vout->fmt_in.i_sar_den / p_vout->fmt_in.i_sar_num;
+        }
+#ifdef WIN32
+        /* On windows, inner video window exceeding container leads to black screen */
+        *pi_width = __MIN( i_width, i_original_width * i_zoom / ZOOM_FP_FACTOR );
+        *pi_height = __MIN( i_height, i_original_height * i_zoom / ZOOM_FP_FACTOR );
+#else
+        *pi_width = i_original_width * i_zoom / ZOOM_FP_FACTOR ;
+        *pi_height = i_original_height * i_zoom / ZOOM_FP_FACTOR ;
+#endif
     }
 
-     int64_t i_scaled_width = p_vout->fmt_in.i_visible_width * (int64_t)p_vout->fmt_in.i_sar_num *
+    int64_t i_scaled_width = p_vout->fmt_in.i_visible_width * (int64_t)p_vout->fmt_in.i_sar_num *
                               *pi_height / p_vout->fmt_in.i_visible_height / p_vout->fmt_in.i_sar_den;
-     int64_t i_scaled_height = p_vout->fmt_in.i_visible_height * (int64_t)p_vout->fmt_in.i_sar_den *
+    int64_t i_scaled_height = p_vout->fmt_in.i_visible_height * (int64_t)p_vout->fmt_in.i_sar_den *
                                *pi_width / p_vout->fmt_in.i_visible_width / p_vout->fmt_in.i_sar_num;
 
     if( i_scaled_width <= 0 || i_scaled_height <= 0 )
@@ -685,9 +714,9 @@ int __vout_InitPicture( vlc_object_t *p_this, picture_t *p_pic,
     p_pic->pf_unlock = NULL;
     p_pic->i_refcount = 0;
 
-    p_pic->p_q = NULL;
+    p_pic->i_qtype = QTYPE_NONE;
     p_pic->i_qstride = 0;
-    p_pic->i_qtype = 0;
+    p_pic->p_q = NULL;
 
     vout_InitFormat( &p_pic->format, i_chroma, i_width, i_height, i_aspect );
 
@@ -989,35 +1018,11 @@ int vout_ChromaCmp( vlc_fourcc_t i_chroma, vlc_fourcc_t i_amorhc )
                     return 0;
             }
 
-        case FOURCC_RGBP:
-            switch( i_amorhc )
-            {
-                case FOURCC_RGBP:
-                    return 1;
-
-                default:
-                    return 0;
-            }
-
         default:
             return 0;
     }
 }
 
-/*****************************************************************************
- * vout_CopyPicture: copy a picture to another one
- *****************************************************************************
- * This function takes advantage of the image format, and reduces the
- * number of calls to memcpy() to the minimum. Source and destination
- * images must have same width (hence i_visible_pitch), height, and chroma.
- *****************************************************************************/
-void __vout_CopyPicture( vlc_object_t *p_this,
-                         picture_t *p_dest, picture_t *p_src )
-{
-    VLC_UNUSED(p_this);
-    picture_Copy( p_dest, p_src );
-}
-
 /*****************************************************************************
  *
  *****************************************************************************/
@@ -1032,12 +1037,10 @@ static void PictureReleaseCallback( picture_t *p_picture )
  *****************************************************************************/
 picture_t *picture_New( vlc_fourcc_t i_chroma, int i_width, int i_height, int i_aspect )
 {
-    picture_t *p_picture = malloc( sizeof(*p_picture) );
-
+    picture_t *p_picture = calloc( 1, sizeof(*p_picture) );
     if( !p_picture )
         return NULL;
 
-    memset( p_picture, 0, sizeof(*p_picture) );
     if( __vout_AllocatePicture( NULL, p_picture,
                                 i_chroma, i_width, i_height, i_aspect ) )
     {
@@ -1111,4 +1114,73 @@ void plane_CopyPixels( plane_t *p_dst, const plane_t *p_src )
 /*****************************************************************************
  *
  *****************************************************************************/
+int picture_Export( vlc_object_t *p_obj,
+                    block_t **pp_image,
+                    video_format_t *p_fmt,
+                    picture_t *p_picture,
+                    vlc_fourcc_t i_format,
+                    int i_override_width, int i_override_height )
+{
+    /* */
+    video_format_t fmt_in = p_picture->format;
+    if( fmt_in.i_sar_num <= 0 || fmt_in.i_sar_den <= 0 )
+    {
+        fmt_in.i_sar_num =
+        fmt_in.i_sar_den = 1;
+    }
+
+    /* */
+    video_format_t fmt_out;
+    memset( &fmt_out, 0, sizeof(fmt_out) );
+    fmt_out.i_sar_num =
+    fmt_out.i_sar_den = 1;
+    fmt_out.i_chroma  = i_format;
+    fmt_out.i_width   = i_override_width;
+    fmt_out.i_height  = i_override_height;
+
+    if( fmt_out.i_height == 0 && fmt_out.i_width > 0 )
+    {
+        fmt_out.i_height = fmt_in.i_height * fmt_out.i_width / fmt_in.i_width;
+        const int i_height = fmt_out.i_height * fmt_in.i_sar_den / fmt_in.i_sar_num;
+        if( i_height > 0 )
+            fmt_out.i_height = i_height;
+    }
+    else
+    {
+        if( fmt_out.i_width == 0 && fmt_out.i_height > 0 )
+        {
+            fmt_out.i_width = fmt_in.i_width * fmt_out.i_height / fmt_in.i_height;
+        }
+        else
+        {
+            fmt_out.i_width = fmt_in.i_width;
+            fmt_out.i_height = fmt_in.i_height;
+        }
+        const int i_width = fmt_out.i_width * fmt_in.i_sar_num / fmt_in.i_sar_den;
+        if( i_width > 0 )
+            fmt_out.i_width = i_width;
+    }
+
+    image_handler_t *p_image = image_HandlerCreate( p_obj );
+
+    block_t *p_block = image_Write( p_image, p_picture, &fmt_in, &fmt_out );
+
+    image_HandlerDelete( p_image );
+
+    if( !p_block )
+        return VLC_EGENERIC;
+
+    p_block->i_pts =
+    p_block->i_dts = p_picture->date;
+
+    if( p_fmt )
+        *p_fmt = fmt_out;
+    *pp_image = p_block;
+
+    return VLC_SUCCESS;
+}
+
+/*****************************************************************************
+ *
+ *****************************************************************************/