#include "vout_internal.h"
/**
- * Display a picture
+ * It retreives a picture from the vout or NULL if no pictures are
+ * available yet.
*
- * Remove the reservation flag of a picture, which will cause it to be ready
- * for display.
- */
-void vout_DisplayPicture( vout_thread_t *p_vout, picture_t *p_pic )
-{
- vlc_mutex_lock( &p_vout->picture_lock );
-
- if( p_pic->i_status == RESERVED_PICTURE )
- {
- p_pic->i_status = READY_PICTURE;
- vlc_cond_signal( &p_vout->p->picture_wait );
- }
- else
- {
- msg_Err( p_vout, "picture to display %p has invalid status %d",
- p_pic, p_pic->i_status );
- }
- p_vout->p->i_picture_qtype = p_pic->i_qtype;
- p_vout->p->b_picture_interlaced = !p_pic->b_progressive;
-
- vlc_mutex_unlock( &p_vout->picture_lock );
-}
-
-/**
- * Allocate a picture in the video output heap.
+ * You MUST call vout_PutPicture or vout_ReleasePicture on it.
*
- * This function creates a reserved image in the video output heap.
- * A null pointer is returned if the function fails. This method provides an
- * already allocated zone of memory in the picture data fields.
- * It needs locking since several pictures can be created by several producers
- * threads.
+ * You may use vout_HoldPicture(paired with vout_ReleasePicture) to keep a
+ * read-only reference.
*/
-int vout_CountPictureAvailable( vout_thread_t *p_vout )
-{
- int i_free = 0;
- int i_pic;
-
- vlc_mutex_lock( &p_vout->picture_lock );
- for( i_pic = 0; i_pic < I_RENDERPICTURES; i_pic++ )
- {
- picture_t *p_pic = PP_RENDERPICTURE[(p_vout->render.i_last_used_pic + i_pic + 1) % I_RENDERPICTURES];
-
- switch( p_pic->i_status )
- {
- case DESTROYED_PICTURE:
- i_free++;
- break;
-
- case FREE_PICTURE:
- i_free++;
- break;
-
- default:
- break;
- }
- }
- vlc_mutex_unlock( &p_vout->picture_lock );
-
- return i_free;
-}
-
-picture_t *vout_CreatePicture( vout_thread_t *p_vout,
- bool b_progressive,
- bool b_top_field_first,
- unsigned int i_nb_fields )
+picture_t *vout_GetPicture( vout_thread_t *p_vout )
{
- int i_pic; /* picture index */
- picture_t * p_pic;
- picture_t * p_freepic = NULL; /* first free picture */
-
/* Get lock */
- vlc_mutex_lock( &p_vout->picture_lock );
-
- /*
- * Look for an empty place in the picture heap.
- */
- for( i_pic = 0; i_pic < I_RENDERPICTURES; i_pic++ )
- {
- p_pic = PP_RENDERPICTURE[(p_vout->render.i_last_used_pic + i_pic + 1)
- % I_RENDERPICTURES];
-
- switch( p_pic->i_status )
- {
- case DESTROYED_PICTURE:
- /* Memory will not be reallocated, and function can end
- * immediately - this is the best possible case, since no
- * memory allocation needs to be done */
- p_pic->i_status = RESERVED_PICTURE;
- p_pic->i_refcount = 0;
- p_pic->b_force = 0;
-
- p_pic->b_progressive = b_progressive;
- p_pic->i_nb_fields = i_nb_fields;
- p_pic->b_top_field_first = b_top_field_first;
-
- p_vout->render.i_last_used_pic =
- ( p_vout->render.i_last_used_pic + i_pic + 1 )
- % I_RENDERPICTURES;
- vlc_mutex_unlock( &p_vout->picture_lock );
- return( p_pic );
-
- case FREE_PICTURE:
- /* Picture is empty and ready for allocation */
- p_vout->render.i_last_used_pic =
- ( p_vout->render.i_last_used_pic + i_pic + 1 )
- % I_RENDERPICTURES;
- p_freepic = p_pic;
- break;
-
- default:
- break;
- }
+ vlc_mutex_lock( &p_vout->p->picture_lock );
+ picture_t *p_pic = picture_pool_Get(p_vout->p->decoder_pool);
+ if (p_pic) {
+ picture_Reset(p_pic);
+ p_pic->p_next = NULL;
}
+ vlc_mutex_unlock( &p_vout->p->picture_lock );
- /*
- * Prepare picture
- */
- if( p_freepic != NULL )
- {
- vout_AllocatePicture( VLC_OBJECT(p_vout),
- p_freepic, p_vout->fmt_render.i_chroma,
- p_vout->fmt_render.i_width, p_vout->fmt_render.i_height,
- p_vout->fmt_in.i_sar_num, p_vout->fmt_in.i_sar_den ); /* The right AR is in fmt_in and not fmt_render */
-
- if( p_freepic->i_planes )
- {
- /* Copy picture information, set some default values */
- p_freepic->i_status = RESERVED_PICTURE;
- p_freepic->i_type = MEMORY_PICTURE;
- p_freepic->b_slow = 0;
-
- p_freepic->i_refcount = 0;
- p_freepic->b_force = 0;
-
- p_freepic->b_progressive = b_progressive;
- p_freepic->i_nb_fields = i_nb_fields;
- p_freepic->b_top_field_first = b_top_field_first;
-
- }
- else
- {
- /* Memory allocation failed : set picture as empty */
- p_freepic->i_status = FREE_PICTURE;
- p_freepic = NULL;
-
- msg_Err( p_vout, "picture allocation failed" );
- }
-
- vlc_mutex_unlock( &p_vout->picture_lock );
-
- return( p_freepic );
- }
-
- /* No free or destroyed picture could be found, but the decoder
- * will try again in a while. */
- vlc_mutex_unlock( &p_vout->picture_lock );
-
- 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;
- picture_CleanupQuant( p_picture );
-
- vlc_cond_signal( &p_vout->p->picture_wait );
+ return p_pic;
}
/**
- * Remove a permanent or reserved picture from the heap
+ * It gives to the vout a picture to be displayed.
*
- * 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 !
+ * The given picture MUST comes from vout_GetPicture.
*
- * TODO remove it, vout_DropPicture should be used instead
+ * Becareful, after vout_PutPicture is called, picture_t::p_next cannot be
+ * read/used.
*/
-void vout_DestroyPicture( vout_thread_t *p_vout, picture_t *p_pic )
+void vout_PutPicture( vout_thread_t *p_vout, picture_t *p_pic )
{
-#ifndef NDEBUG
- /* Check if picture status is valid */
- 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
-
- vout_DropPicture( p_vout, p_pic );
-}
+ vlc_mutex_lock( &p_vout->p->picture_lock );
-/* */
-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 );
- }
+ p_pic->p_next = NULL;
+ picture_fifo_Push(p_vout->p->decoder_fifo, p_pic);
- vlc_mutex_unlock( &p_vout->picture_lock );
-}
+ vlc_mutex_unlock( &p_vout->p->picture_lock );
-/**
- * Increment reference counter of a picture
- *
- * This function increments the reference counter of a picture in the video
- * heap. It needs a lock since several producer threads can access the picture.
- */
-void vout_LinkPicture( vout_thread_t *p_vout, picture_t *p_pic )
-{
- vlc_mutex_lock( &p_vout->picture_lock );
- p_pic->i_refcount++;
- vlc_mutex_unlock( &p_vout->picture_lock );
+ vout_control_Wake( &p_vout->p->control);
}
/**
- * Decrement reference counter of a picture
- *
- * This function decrement the reference counter of a picture in the video heap
+ * It releases a picture retreived by vout_GetPicture.
*/
-void vout_UnlinkPicture( vout_thread_t *p_vout, picture_t *p_pic )
+void vout_ReleasePicture( vout_thread_t *p_vout, picture_t *p_pic )
{
- vlc_mutex_lock( &p_vout->picture_lock );
+ vlc_mutex_lock( &p_vout->p->picture_lock );
- 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 );
+ picture_Release( p_pic );
- if( p_pic->i_refcount == 0 &&
- ( p_pic->i_status == DISPLAYED_PICTURE || p_pic->i_status == RESERVED_PICTURE ) )
- DestroyPicture( p_vout, p_pic );
+ vlc_mutex_unlock( &p_vout->p->picture_lock );
- vlc_mutex_unlock( &p_vout->picture_lock );
+ vout_control_Wake( &p_vout->p->control);
}
/**
- * Render a picture
- *
- * This function chooses whether the current picture needs to be copied
- * before rendering, does the subpicture magic, and tells the video output
- * thread which direct buffer needs to be displayed.
+ * It increment the reference counter of a picture retreived by
+ * vout_GetPicture.
*/
-picture_t *vout_RenderPicture( vout_thread_t *p_vout, picture_t *p_pic,
- subpicture_t *p_subpic, mtime_t render_date )
+void vout_HoldPicture( vout_thread_t *p_vout, picture_t *p_pic )
{
- if( p_pic == NULL )
- return NULL;
+ vlc_mutex_lock( &p_vout->p->picture_lock );
- if( p_pic->i_type == DIRECT_PICTURE && !p_subpic )
- {
- /* No subtitles, picture is in a directbuffer so
- * we can display it directly (even if it is still
- * in use or not). */
- return p_pic;
- }
+ picture_Hold( p_pic );
- /* It is either because:
- * - the picture is not a direct buffer
- * - we have to render subtitles (we can never do it on the given
- * picture even if not referenced).
- */
- picture_t *p_render;
- if( p_subpic != NULL && PP_OUTPUTPICTURE[0]->b_slow )
- {
- /* The picture buffer is in slow memory. We'll use
- * the "2 * VOUT_MAX_PICTURES + 1" picture as a temporary
- * one for subpictures rendering. */
- p_render = &p_vout->p_picture[2 * VOUT_MAX_PICTURES];
- if( p_render->i_status == FREE_PICTURE )
- {
- vout_AllocatePicture( VLC_OBJECT(p_vout),
- p_render, p_vout->fmt_out.i_chroma,
- p_vout->fmt_out.i_width,
- p_vout->fmt_out.i_height,
- p_vout->fmt_out.i_sar_num,
- p_vout->fmt_out.i_sar_den );
- p_render->i_type = MEMORY_PICTURE;
- p_render->i_status = RESERVED_PICTURE;
- }
- }
- else
- {
- /* We can directly render into a direct buffer */
- p_render = PP_OUTPUTPICTURE[0];
- }
-
- /* Copy */
- picture_Copy( p_render, p_pic );
-
- /* Render the subtitles if present */
- if( p_subpic )
- spu_RenderSubpictures( p_vout->p->p_spu,
- p_render, &p_vout->fmt_out,
- p_subpic, &p_vout->fmt_in, render_date );
- /* Copy in case we used a temporary fast buffer */
- if( p_render != PP_OUTPUTPICTURE[0] )
- picture_Copy( PP_OUTPUTPICTURE[0], p_render );
-
- return PP_OUTPUTPICTURE[0];
+ vlc_mutex_unlock( &p_vout->p->picture_lock );
}
-#undef vout_AllocatePicture
/**
* Allocate a new picture in the heap.
*
* used exactly like a video buffer. The video output thread then manages
* how it gets displayed.
*/
-int vout_AllocatePicture( vlc_object_t *p_this, picture_t *p_pic,
- vlc_fourcc_t i_chroma,
- int i_width, int i_height,
- int i_sar_num, int i_sar_den )
+static int vout_AllocatePicture( picture_t *p_pic,
+ vlc_fourcc_t i_chroma,
+ int i_width, int i_height,
+ int i_sar_num, int i_sar_den )
{
- VLC_UNUSED(p_this);
-
/* Make sure the real dimensions are a multiple of 16 */
if( picture_Setup( p_pic, i_chroma, i_width, i_height,
i_sar_num, i_sar_den ) != VLC_SUCCESS )
i_bytes += p->i_pitch * p->i_lines;
}
- p_pic->p_data = vlc_memalign( &p_pic->p_data_orig, 16, i_bytes );
- if( p_pic->p_data == NULL )
+ uint8_t *p_data = vlc_memalign( &p_pic->p_data_orig, 16, i_bytes );
+ if( !p_data )
{
p_pic->i_planes = 0;
return VLC_EGENERIC;
}
/* Fill the p_pixels field for each plane */
- p_pic->p[0].p_pixels = p_pic->p_data;
+ p_pic->p[0].p_pixels = p_data;
for( int i = 1; i < p_pic->i_planes; i++ )
{
p_pic->p[i].p_pixels = &p_pic->p[i-1].p_pixels[ p_pic->p[i-1].i_lines *
}
else
{
- if( vout_AllocatePicture( (vlc_object_t *)NULL, p_picture,
+ if( vout_AllocatePicture( p_picture,
fmt.i_chroma, fmt.i_width, fmt.i_height,
fmt.i_sar_num, fmt.i_sar_den ) )
{
p_picture->format = fmt;
p_picture->i_refcount = 1;
p_picture->pf_release = PictureReleaseCallback;
- p_picture->i_status = RESERVED_PICTURE;
return p_picture;
}
projects / vlc / blobdiff