X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Fvideo_output%2Fvout_pictures.c;h=b2f2e11c5527ac141580f3eda0c538de30d04d29;hb=12ade3e3bc975d5426ba4af155b7372c31093b31;hp=b4d34d43dfc063d5036f3f3e5826d6c1e96e7077;hpb=cc3bd152f5d2166087b9e19b962e3ace06bd12ea;p=vlc diff --git a/src/video_output/vout_pictures.c b/src/video_output/vout_pictures.c index b4d34d43df..b2f2e11c55 100644 --- a/src/video_output/vout_pictures.c +++ b/src/video_output/vout_pictures.c @@ -26,935 +26,435 @@ * Preamble *****************************************************************************/ -#include +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif +#include + +#include +#include #include -#include -#include "vout_pictures.h" +#include +#include +#include +#include +#include + +#include "vout_internal.h" /** - * Display a picture + * It retreives a picture from the vout or NULL if no pictures are + * available yet. + * + * You MUST call vout_PutPicture or vout_ReleasePicture on it. * - * 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. + * You may use vout_HoldPicture(paired with vout_ReleasePicture) to keep a + * read-only reference. */ -void vout_DisplayPicture( vout_thread_t *p_vout, picture_t *p_pic ) +picture_t *vout_GetPicture( vout_thread_t *p_vout ) { - vlc_mutex_lock( &p_vout->picture_lock ); - switch( p_pic->i_status ) - { - 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; + /* Get lock */ + 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 ); - vlc_mutex_unlock( &p_vout->picture_lock ); + return p_pic; } /** - * Date a picture + * It gives to the vout a picture to be displayed. + * + * The given picture MUST comes from vout_GetPicture. * - * 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 + * Becareful, after vout_PutPicture is called, picture_t::p_next cannot be + * read/used. */ -void vout_DatePicture( vout_thread_t *p_vout, - picture_t *p_pic, mtime_t date ) +void vout_PutPicture( vout_thread_t *p_vout, picture_t *p_pic ) { - vlc_mutex_lock( &p_vout->picture_lock ); - p_pic->date = date; - switch( p_pic->i_status ) - { - 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", - p_pic, p_pic->i_status ); - break; - } + vlc_mutex_lock( &p_vout->p->picture_lock ); + + 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 ); + + vout_control_Wake( &p_vout->p->control); } /** - * Allocate a picture in the video output heap. - * - * 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. + * It releases a picture retreived by vout_GetPicture. */ -picture_t *vout_CreatePicture( vout_thread_t *p_vout, - vlc_bool_t b_progressive, - vlc_bool_t b_top_field_first, - unsigned int i_nb_fields ) +void vout_ReleasePicture( vout_thread_t *p_vout, picture_t *p_pic ) { - int i_pic; /* picture index */ - picture_t * p_pic; - picture_t * p_freepic = NULL; /* first free picture */ + vlc_mutex_lock( &p_vout->p->picture_lock ); - /* Get lock */ - vlc_mutex_lock( &p_vout->picture_lock ); + picture_Release( p_pic ); - /* - * 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]; + vlc_mutex_unlock( &p_vout->p->picture_lock ); - 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->i_heap_size++; - 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; - } - } + vout_control_Wake( &p_vout->p->control); +} - /* - * Prepare picture - */ - if( p_freepic != NULL ) - { - vout_AllocatePicture( VLC_OBJECT(p_vout), - p_freepic, p_vout->render.i_chroma, - p_vout->render.i_width, p_vout->render.i_height, - p_vout->render.i_aspect ); +/** + * It increment the reference counter of a picture retreived by + * vout_GetPicture. + */ +void vout_HoldPicture( vout_thread_t *p_vout, picture_t *p_pic ) +{ + vlc_mutex_lock( &p_vout->p->picture_lock ); - 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; + picture_Hold( p_pic ); - p_freepic->i_refcount = 0; - p_freepic->b_force = 0; + vlc_mutex_unlock( &p_vout->p->picture_lock ); +} - p_freepic->b_progressive = b_progressive; - p_freepic->i_nb_fields = i_nb_fields; - p_freepic->b_top_field_first = b_top_field_first; +/** + * Allocate a new picture in the heap. + * + * This function allocates a fake direct buffer in memory, which can be + * used exactly like a video buffer. The video output thread then manages + * how it gets displayed. + */ +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 ) +{ + /* 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 ) + return VLC_EGENERIC; - p_freepic->i_matrix_coefficients = 1; + /* Calculate how big the new image should be */ + size_t i_bytes = 0; + for( int i = 0; i < p_pic->i_planes; i++ ) + { + const plane_t *p = &p_pic->p[i]; - p_vout->i_heap_size++; - } - else + if( p->i_pitch <= 0 || p->i_lines <= 0 || + p->i_pitch > (SIZE_MAX - i_bytes)/p->i_lines ) { - /* Memory allocation failed : set picture as empty */ - p_freepic->i_status = FREE_PICTURE; - p_freepic = NULL; - - msg_Err( p_vout, "picture allocation failed" ); + p_pic->i_planes = 0; + return VLC_ENOMEM; } + i_bytes += p->i_pitch * p->i_lines; + } - vlc_mutex_unlock( &p_vout->picture_lock ); - - return( p_freepic ); + 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; } - /* No free or destroyed picture could be found, but the decoder - * will try again in a while. */ - vlc_mutex_unlock( &p_vout->picture_lock ); + /* Fill the p_pixels field for each plane */ + 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 * + p_pic->p[i-1].i_pitch ]; + } - return( NULL ); + return VLC_SUCCESS; } -/** - * 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 ! - */ -void vout_DestroyPicture( vout_thread_t *p_vout, picture_t *p_pic ) + *****************************************************************************/ +static void PictureReleaseCallback( picture_t *p_picture ) { - vlc_mutex_lock( &p_vout->picture_lock ); - -#ifdef DEBUG - /* 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) ) - { - msg_Err( p_vout, "picture to destroy %p has invalid status %d", - p_pic, p_pic->i_status ); - } -#endif - - p_pic->i_status = DESTROYED_PICTURE; - p_vout->i_heap_size--; - - vlc_mutex_unlock( &p_vout->picture_lock ); + if( --p_picture->i_refcount > 0 ) + return; + picture_Delete( p_picture ); } -/** - * 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 ) + *****************************************************************************/ +void picture_Reset( picture_t *p_picture ) { - vlc_mutex_lock( &p_vout->picture_lock ); - p_pic->i_refcount++; - vlc_mutex_unlock( &p_vout->picture_lock ); + /* */ + p_picture->date = VLC_TS_INVALID; + p_picture->b_force = false; + p_picture->b_progressive = false; + p_picture->i_nb_fields = 0; + p_picture->b_top_field_first = false; + picture_CleanupQuant( p_picture ); } -/** - * Decrement reference counter of a picture +/***************************************************************************** * - * This function decrement the reference counter of a picture in the video heap - */ -void vout_UnlinkPicture( vout_thread_t *p_vout, picture_t *p_pic ) + *****************************************************************************/ +static int LCM( int a, int b ) { - vlc_mutex_lock( &p_vout->picture_lock ); - p_pic->i_refcount--; + return a * b / GCD( a, b ); +} - if( p_pic->i_refcount < 0 ) +int picture_Setup( picture_t *p_picture, vlc_fourcc_t i_chroma, + int i_width, int i_height, int i_sar_num, int i_sar_den ) +{ + /* Store default values */ + p_picture->i_planes = 0; + for( unsigned i = 0; i < VOUT_MAX_PLANES; i++ ) { - msg_Err( p_vout, "picture %p refcount is %i", - p_pic, p_pic->i_refcount ); - p_pic->i_refcount = 0; + plane_t *p = &p_picture->p[i]; + p->p_pixels = NULL; + p->i_pixel_pitch = 0; } - if( ( p_pic->i_refcount == 0 ) && - ( p_pic->i_status == DISPLAYED_PICTURE ) ) - { - p_pic->i_status = DESTROYED_PICTURE; - p_vout->i_heap_size--; - } + p_picture->pf_release = NULL; + p_picture->p_release_sys = NULL; + p_picture->i_refcount = 0; - vlc_mutex_unlock( &p_vout->picture_lock ); -} + p_picture->i_qtype = QTYPE_NONE; + p_picture->i_qstride = 0; + p_picture->p_q = NULL; -/** - * 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. - */ -picture_t * vout_RenderPicture( vout_thread_t *p_vout, picture_t *p_pic, - subpicture_t *p_subpic ) -{ - int i_scale_width, i_scale_height; + video_format_Setup( &p_picture->format, i_chroma, i_width, i_height, + i_sar_num, i_sar_den ); - if( p_pic == NULL ) + const vlc_chroma_description_t *p_dsc = + vlc_fourcc_GetChromaDescription( p_picture->format.i_chroma ); + if( !p_dsc ) + return VLC_EGENERIC; + + /* We want V (width/height) to respect: + (V * p_dsc->p[i].w.i_num) % p_dsc->p[i].w.i_den == 0 + (V * p_dsc->p[i].w.i_num/p_dsc->p[i].w.i_den * p_dsc->i_pixel_size) % 16 == 0 + Which is respected if you have + V % lcm( p_dsc->p[0..planes].w.i_den * 16) == 0 + */ + int i_modulo_w = 1; + int i_modulo_h = 1; + int i_ratio_h = 1; + for( unsigned i = 0; i < p_dsc->plane_count; i++ ) { - /* XXX: subtitles */ - return NULL; + i_modulo_w = LCM( i_modulo_w, 16 * p_dsc->p[i].w.den ); + i_modulo_h = LCM( i_modulo_h, 16 * p_dsc->p[i].h.den ); + if( i_ratio_h < p_dsc->p[i].h.den ) + i_ratio_h = p_dsc->p[i].h.den; } - 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 ) + const int i_width_aligned = ( i_width + i_modulo_w - 1 ) / i_modulo_w * i_modulo_w; + const int i_height_aligned = ( i_height + i_modulo_h - 1 ) / i_modulo_h * i_modulo_h; + const int i_height_extra = 2 * i_ratio_h; /* This one is a hack for some ASM functions */ + for( unsigned i = 0; i < p_dsc->plane_count; i++ ) { - if( !p_vout->render.b_allow_modify_pics || p_pic->i_refcount || - p_pic->b_force ) - { - /* Picture is in a direct buffer and is still in use, - * we need to copy it to another direct buffer before - * displaying it if there are subtitles. */ - if( p_subpic != NULL ) - { - /* We have subtitles. First copy the picture to - * the spare direct buffer, then render the - * subtitles. */ - vout_CopyPicture( p_vout, PP_OUTPUTPICTURE[0], p_pic ); - - spu_RenderSubpictures( p_vout->p_spu, &p_vout->fmt_out, - PP_OUTPUTPICTURE[0], p_pic, p_subpic, - i_scale_width, i_scale_height ); - - return PP_OUTPUTPICTURE[0]; - } - - /* No subtitles, picture is in a directbuffer so - * we can display it directly even if it is still - * in use. */ - return p_pic; - } + plane_t *p = &p_picture->p[i]; - /* Picture is in a direct buffer but isn't used by the - * decoder. We can safely render subtitles on it and - * display it. */ - spu_RenderSubpictures( p_vout->p_spu, &p_vout->fmt_out, p_pic, p_pic, - p_subpic, i_scale_width, i_scale_height ); + p->i_lines = (i_height_aligned + i_height_extra ) * p_dsc->p[i].h.num / p_dsc->p[i].h.den; + p->i_visible_lines = i_height * p_dsc->p[i].h.num / p_dsc->p[i].h.den; + p->i_pitch = i_width_aligned * p_dsc->p[i].w.num / p_dsc->p[i].w.den * p_dsc->pixel_size; + p->i_visible_pitch = i_width * p_dsc->p[i].w.num / p_dsc->p[i].w.den * p_dsc->pixel_size; + p->i_pixel_pitch = p_dsc->pixel_size; - return p_pic; + assert( (p->i_pitch % 16) == 0 ); } + p_picture->i_planes = p_dsc->plane_count; - /* 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 ) - { - /* Picture is not in a direct buffer, but is exactly the - * same size as the direct buffers. A memcpy() is enough, - * then render the subtitles. */ - - if( PP_OUTPUTPICTURE[0]->pf_lock ) - if( PP_OUTPUTPICTURE[0]->pf_lock( 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_pic, - p_subpic, i_scale_width, i_scale_height ); + return VLC_SUCCESS; +} - if( PP_OUTPUTPICTURE[0]->pf_unlock ) - PP_OUTPUTPICTURE[0]->pf_unlock( p_vout, PP_OUTPUTPICTURE[0] ); +/***************************************************************************** + * + *****************************************************************************/ +picture_t *picture_NewFromResource( const video_format_t *p_fmt, const picture_resource_t *p_resource ) +{ + video_format_t fmt = *p_fmt; - return PP_OUTPUTPICTURE[0]; - } + /* It is needed to be sure all information are filled */ + video_format_Setup( &fmt, p_fmt->i_chroma, + p_fmt->i_width, p_fmt->i_height, + p_fmt->i_sar_num, p_fmt->i_sar_den ); - /* Picture is not in a direct buffer, and needs to be converted to - * another size/chroma. Then the subtitles need to be rendered as - * well. This usually means software YUV, or hardware YUV with a - * different chroma. */ + /* */ + picture_t *p_picture = calloc( 1, sizeof(*p_picture) ); + if( !p_picture ) + return NULL; - if( p_subpic != NULL && p_vout->p_picture[0].b_slow ) + if( p_resource ) { - /* The picture buffer is in slow memory. We'll use - * the "2 * VOUT_MAX_PICTURES + 1" picture as a temporary - * one for subpictures rendering. */ - picture_t *p_tmp_pic = &p_vout->p_picture[2 * VOUT_MAX_PICTURES]; - if( p_tmp_pic->i_status == FREE_PICTURE ) + if( picture_Setup( p_picture, fmt.i_chroma, fmt.i_width, fmt.i_height, + fmt.i_sar_num, fmt.i_sar_den ) ) { - vout_AllocatePicture( VLC_OBJECT(p_vout), - p_tmp_pic, p_vout->fmt_out.i_chroma, - p_vout->fmt_out.i_width, - p_vout->fmt_out.i_height, - p_vout->fmt_out.i_aspect ); - p_tmp_pic->i_type = MEMORY_PICTURE; - p_tmp_pic->i_status = RESERVED_PICTURE; - /* some modules (such as blend) needs to know the extra information in picture heap */ - p_tmp_pic->p_heap = &p_vout->output; + free( p_picture ); + return NULL; } + p_picture->p_sys = p_resource->p_sys; - /* Convert image to the first direct buffer */ - p_vout->chroma.pf_convert( p_vout, p_pic, p_tmp_pic ); - - /* Render subpictures on the first direct buffer */ - spu_RenderSubpictures( p_vout->p_spu, &p_vout->fmt_out, p_tmp_pic, - p_tmp_pic, p_subpic, - i_scale_width, i_scale_height ); - - if( p_vout->p_picture[0].pf_lock ) - if( p_vout->p_picture[0].pf_lock( p_vout, &p_vout->p_picture[0] ) ) - return NULL; - - vout_CopyPicture( p_vout, &p_vout->p_picture[0], p_tmp_pic ); + for( int i = 0; i < p_picture->i_planes; i++ ) + { + p_picture->p[i].p_pixels = p_resource->p[i].p_pixels; + p_picture->p[i].i_lines = p_resource->p[i].i_lines; + p_picture->p[i].i_pitch = p_resource->p[i].i_pitch; + } } else { - if( p_vout->p_picture[0].pf_lock ) - if( p_vout->p_picture[0].pf_lock( p_vout, &p_vout->p_picture[0] ) ) - return NULL; + if( vout_AllocatePicture( p_picture, + fmt.i_chroma, fmt.i_width, fmt.i_height, + fmt.i_sar_num, fmt.i_sar_den ) ) + { + free( p_picture ); + return NULL; + } + } + /* */ + p_picture->format = fmt; + p_picture->i_refcount = 1; + p_picture->pf_release = PictureReleaseCallback; + + return p_picture; +} +picture_t *picture_NewFromFormat( const video_format_t *p_fmt ) +{ + return picture_NewFromResource( p_fmt, NULL ); +} +picture_t *picture_New( vlc_fourcc_t i_chroma, int i_width, int i_height, int i_sar_num, int i_sar_den ) +{ + video_format_t fmt; - /* Convert image to the first direct buffer */ - p_vout->chroma.pf_convert( p_vout, p_pic, &p_vout->p_picture[0] ); + memset( &fmt, 0, sizeof(fmt) ); + video_format_Setup( &fmt, i_chroma, i_width, i_height, + i_sar_num, i_sar_den ); - /* Render subpictures on the first direct buffer */ - spu_RenderSubpictures( p_vout->p_spu, &p_vout->fmt_out, - &p_vout->p_picture[0], &p_vout->p_picture[0], - p_subpic, i_scale_width, i_scale_height ); - } + return picture_NewFromFormat( &fmt ); +} - if( p_vout->p_picture[0].pf_unlock ) - p_vout->p_picture[0].pf_unlock( p_vout, &p_vout->p_picture[0] ); +/***************************************************************************** + * + *****************************************************************************/ +void picture_Delete( picture_t *p_picture ) +{ + assert( p_picture && p_picture->i_refcount == 0 ); + assert( p_picture->p_release_sys == NULL ); - return &p_vout->p_picture[0]; + free( p_picture->p_q ); + free( p_picture->p_data_orig ); + free( p_picture->p_sys ); + free( p_picture ); } -/** - * Calculate image window coordinates +/***************************************************************************** * - * 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, - unsigned int i_width, unsigned int i_height, - unsigned int *pi_x, unsigned int *pi_y, - unsigned int *pi_width, unsigned int *pi_height ) + *****************************************************************************/ +void picture_CopyPixels( picture_t *p_dst, const picture_t *p_src ) { - if( (i_width <= 0) || (i_height <=0) ) - { - *pi_width = *pi_height = *pi_x = *pi_y = 0; - return; - } + int i; - if( p_vout->b_scale ) - { - *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 ); - } + for( i = 0; i < p_src->i_planes ; i++ ) + plane_CopyPixels( p_dst->p+i, p_src->p+i ); +} + +void plane_CopyPixels( plane_t *p_dst, const plane_t *p_src ) +{ + const unsigned i_width = __MIN( p_dst->i_visible_pitch, + p_src->i_visible_pitch ); + const unsigned i_height = __MIN( p_dst->i_visible_lines, + p_src->i_visible_lines ); - if( 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 > *pi_width ) + if( p_src->i_pitch == p_dst->i_pitch ) { - *pi_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; + /* There are margins, but with the same width : perfect ! */ + vlc_memcpy( p_dst->p_pixels, p_src->p_pixels, + p_src->i_pitch * i_height ); } else { - *pi_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; - } + /* We need to proceed line by line */ + uint8_t *p_in = p_src->p_pixels; + uint8_t *p_out = p_dst->p_pixels; + int i_line; - switch( p_vout->i_alignment & VOUT_ALIGN_HMASK ) - { - case VOUT_ALIGN_LEFT: - *pi_x = 0; - break; - case VOUT_ALIGN_RIGHT: - *pi_x = i_width - *pi_width; - break; - default: - *pi_x = ( i_width - *pi_width ) / 2; - } + assert( p_in ); + assert( p_out ); - switch( p_vout->i_alignment & VOUT_ALIGN_VMASK ) - { - case VOUT_ALIGN_TOP: - *pi_y = 0; - break; - case VOUT_ALIGN_BOTTOM: - *pi_y = i_height - *pi_height; - break; - default: - *pi_y = ( i_height - *pi_height ) / 2; + for( i_line = i_height; i_line--; ) + { + vlc_memcpy( p_out, p_in, i_width ); + p_in += p_src->i_pitch; + p_out += p_dst->i_pitch; + } } } -/** - * Allocate a new picture in the heap. +/***************************************************************************** * - * This function allocates a fake direct buffer in memory, which can be - * 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_aspect ) + *****************************************************************************/ +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 ) { - int i_bytes, i_index, i_width_aligned, i_height_aligned; - - /* Make sure the real dimensions are a multiple of 16 */ - i_width_aligned = (i_width + 15) >> 4 << 4; - i_height_aligned = (i_height + 15) >> 4 << 4; - - if( vout_InitPicture( p_this, p_pic, i_chroma, - i_width, i_height, i_aspect ) != VLC_SUCCESS ) + /* */ + video_format_t fmt_in = p_picture->format; + if( fmt_in.i_sar_num <= 0 || fmt_in.i_sar_den <= 0 ) { - p_pic->i_planes = 0; - return VLC_EGENERIC; + fmt_in.i_sar_num = + fmt_in.i_sar_den = 1; } - /* Calculate how big the new image should be */ - i_bytes = p_pic->format.i_bits_per_pixel * - i_width_aligned * i_height_aligned / 8; - - p_pic->p_data = vlc_memalign( &p_pic->p_data_orig, 16, i_bytes ); - - if( p_pic->p_data == NULL ) + /* */ + 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; + + /* compute original width/height */ + unsigned int i_original_width; + unsigned int i_original_height; + if( fmt_in.i_sar_num >= fmt_in.i_sar_den ) { - p_pic->i_planes = 0; - return VLC_EGENERIC; + i_original_width = (int64_t)fmt_in.i_width * fmt_in.i_sar_num / fmt_in.i_sar_den; + i_original_height = fmt_in.i_height; } - - /* Fill the p_pixels field for each plane */ - p_pic->p[ 0 ].p_pixels = p_pic->p_data; - - for( i_index = 1; i_index < p_pic->i_planes; i_index++ ) + else { - p_pic->p[i_index].p_pixels = p_pic->p[i_index-1].p_pixels + - p_pic->p[i_index-1].i_lines * p_pic->p[i_index-1].i_pitch; + i_original_width = fmt_in.i_width; + i_original_height = (int64_t)fmt_in.i_height * fmt_in.i_sar_den / fmt_in.i_sar_num; } - return VLC_SUCCESS; -} + /* */ + fmt_out.i_width = ( i_override_width < 0 ) ? + i_original_width : i_override_width; + fmt_out.i_height = ( i_override_height < 0 ) ? + i_original_height : i_override_height; -/** - * Initialise the video format fields given chroma/size. - * - * This function initializes all the video_frame_format_t fields given the - * static properties of a picture (chroma and size). - * \param p_format Pointer to the format structure to initialize - * \param i_chroma Chroma to set - * \param i_width Width to set - * \param i_height Height to set - * \param i_aspect Aspect ratio - */ -void vout_InitFormat( video_frame_format_t *p_format, vlc_fourcc_t i_chroma, - int i_width, int i_height, int i_aspect ) -{ - p_format->i_chroma = i_chroma; - p_format->i_width = p_format->i_visible_width = i_width; - p_format->i_height = p_format->i_visible_height = i_height; - p_format->i_x_offset = p_format->i_y_offset = 0; - p_format->i_aspect = i_aspect; - -#if 0 - /* Assume we have square pixels */ - if( i_width && i_height ) - p_format->i_aspect = i_width * VOUT_ASPECT_FACTOR / i_height; - else - p_format->i_aspect = 0; -#endif - - switch( i_chroma ) + /* scale if only one direction is provided */ + if( fmt_out.i_height == 0 && fmt_out.i_width > 0 ) { - case FOURCC_YUVA: - p_format->i_bits_per_pixel = 32; - break; - case FOURCC_I444: - case FOURCC_J444: - p_format->i_bits_per_pixel = 24; - break; - case FOURCC_I422: - case FOURCC_YUY2: - case FOURCC_UYVY: - case FOURCC_J422: - p_format->i_bits_per_pixel = 16; - break; - case FOURCC_I411: - case FOURCC_YV12: - case FOURCC_I420: - case FOURCC_J420: - case FOURCC_IYUV: - p_format->i_bits_per_pixel = 12; - break; - case FOURCC_I410: - case FOURCC_YVU9: - p_format->i_bits_per_pixel = 9; - break; - case FOURCC_Y211: - p_format->i_bits_per_pixel = 8; - break; - case FOURCC_YUVP: - p_format->i_bits_per_pixel = 8; - break; - - case FOURCC_RV32: - case FOURCC_RGBA: - p_format->i_bits_per_pixel = 32; - break; - case FOURCC_RV24: - p_format->i_bits_per_pixel = 24; - break; - case FOURCC_RV15: - case FOURCC_RV16: - p_format->i_bits_per_pixel = 16; - break; - case FOURCC_RGB2: - p_format->i_bits_per_pixel = 8; - break; - - case FOURCC_GREY: - p_format->i_bits_per_pixel = 8; - break; - - default: - p_format->i_bits_per_pixel = 0; - break; + fmt_out.i_height = fmt_in.i_height * fmt_out.i_width + * fmt_in.i_sar_den / fmt_in.i_width / fmt_in.i_sar_num; } -} - -/** - * Initialise the picture_t fields given chroma/size. - * - * This function initializes most of the picture_t fields given a chroma and - * size. It makes the assumption that stride == width. - * \param p_this The calling object - * \param p_pic Pointer to the picture to initialize - * \param i_chroma The chroma fourcc to set - * \param i_width The width of the picture - * \param i_height The height of the picture - * \param i_aspect The aspect ratio of the picture - */ -int __vout_InitPicture( vlc_object_t *p_this, picture_t *p_pic, - vlc_fourcc_t i_chroma, - int i_width, int i_height, int i_aspect ) -{ - int i_index, i_width_aligned, i_height_aligned; - - /* Store default values */ - for( i_index = 0; i_index < VOUT_MAX_PLANES; i_index++ ) + else if( fmt_out.i_width == 0 && fmt_out.i_height > 0 ) { - p_pic->p[i_index].p_pixels = NULL; - p_pic->p[i_index].i_pixel_pitch = 1; + fmt_out.i_width = fmt_in.i_width * fmt_out.i_height + * fmt_in.i_sar_num / fmt_in.i_height / fmt_in.i_sar_den; } - p_pic->pf_release = 0; - p_pic->pf_lock = 0; - p_pic->pf_unlock = 0; - p_pic->i_refcount = 0; + image_handler_t *p_image = image_HandlerCreate( p_obj ); - vout_InitFormat( &p_pic->format, i_chroma, i_width, i_height, i_aspect ); + block_t *p_block = image_Write( p_image, p_picture, &fmt_in, &fmt_out ); - /* Make sure the real dimensions are a multiple of 16 */ - i_width_aligned = (i_width + 15) >> 4 << 4; - i_height_aligned = (i_height + 15) >> 4 << 4; + image_HandlerDelete( p_image ); - /* Calculate coordinates */ - switch( i_chroma ) - { - case FOURCC_I411: - p_pic->p[ Y_PLANE ].i_lines = i_height_aligned; - p_pic->p[ Y_PLANE ].i_visible_lines = i_height; - p_pic->p[ Y_PLANE ].i_pitch = i_width_aligned; - p_pic->p[ Y_PLANE ].i_visible_pitch = i_width; - p_pic->p[ U_PLANE ].i_lines = i_height_aligned; - p_pic->p[ U_PLANE ].i_visible_lines = i_height; - p_pic->p[ U_PLANE ].i_pitch = i_width_aligned / 4; - p_pic->p[ U_PLANE ].i_visible_pitch = i_width / 4; - p_pic->p[ V_PLANE ].i_lines = i_height_aligned; - p_pic->p[ V_PLANE ].i_visible_lines = i_height; - p_pic->p[ V_PLANE ].i_pitch = i_width_aligned / 4; - p_pic->p[ V_PLANE ].i_visible_pitch = i_width / 4; - p_pic->i_planes = 3; - break; - - case FOURCC_I410: - case FOURCC_YVU9: - p_pic->p[ Y_PLANE ].i_lines = i_height_aligned; - p_pic->p[ Y_PLANE ].i_visible_lines = i_height; - p_pic->p[ Y_PLANE ].i_pitch = i_width_aligned; - p_pic->p[ Y_PLANE ].i_visible_pitch = i_width; - p_pic->p[ U_PLANE ].i_lines = i_height_aligned / 4; - p_pic->p[ U_PLANE ].i_visible_lines = i_height / 4; - p_pic->p[ U_PLANE ].i_pitch = i_width_aligned / 4; - p_pic->p[ U_PLANE ].i_visible_pitch = i_width / 4; - p_pic->p[ V_PLANE ].i_lines = i_height_aligned / 4; - p_pic->p[ V_PLANE ].i_visible_lines = i_height / 4; - p_pic->p[ V_PLANE ].i_pitch = i_width_aligned / 4; - p_pic->p[ V_PLANE ].i_visible_pitch = i_width / 4; - p_pic->i_planes = 3; - break; - - case FOURCC_YV12: - case FOURCC_I420: - case FOURCC_IYUV: - case FOURCC_J420: - p_pic->p[ Y_PLANE ].i_lines = i_height_aligned; - p_pic->p[ Y_PLANE ].i_visible_lines = i_height; - p_pic->p[ Y_PLANE ].i_pitch = i_width_aligned; - p_pic->p[ Y_PLANE ].i_visible_pitch = i_width; - p_pic->p[ U_PLANE ].i_lines = i_height_aligned / 2; - p_pic->p[ U_PLANE ].i_visible_lines = i_height / 2; - p_pic->p[ U_PLANE ].i_pitch = i_width_aligned / 2; - p_pic->p[ U_PLANE ].i_visible_pitch = i_width / 2; - p_pic->p[ V_PLANE ].i_lines = i_height_aligned / 2; - p_pic->p[ V_PLANE ].i_visible_lines = i_height / 2; - p_pic->p[ V_PLANE ].i_pitch = i_width_aligned / 2; - p_pic->p[ V_PLANE ].i_visible_pitch = i_width / 2; - p_pic->i_planes = 3; - break; - - case FOURCC_I422: - case FOURCC_J422: - p_pic->p[ Y_PLANE ].i_lines = i_height_aligned; - p_pic->p[ Y_PLANE ].i_visible_lines = i_height; - p_pic->p[ Y_PLANE ].i_pitch = i_width_aligned; - p_pic->p[ Y_PLANE ].i_visible_pitch = i_width; - p_pic->p[ U_PLANE ].i_lines = i_height_aligned; - p_pic->p[ U_PLANE ].i_visible_lines = i_height; - p_pic->p[ U_PLANE ].i_pitch = i_width_aligned / 2; - p_pic->p[ U_PLANE ].i_visible_pitch = i_width / 2; - p_pic->p[ V_PLANE ].i_lines = i_height_aligned; - p_pic->p[ V_PLANE ].i_visible_lines = i_height; - p_pic->p[ V_PLANE ].i_pitch = i_width_aligned / 2; - p_pic->p[ V_PLANE ].i_visible_pitch = i_width / 2; - p_pic->i_planes = 3; - break; - - case FOURCC_I444: - case FOURCC_J444: - p_pic->p[ Y_PLANE ].i_lines = i_height_aligned; - p_pic->p[ Y_PLANE ].i_visible_lines = i_height; - p_pic->p[ Y_PLANE ].i_pitch = i_width_aligned; - p_pic->p[ Y_PLANE ].i_visible_pitch = i_width; - p_pic->p[ U_PLANE ].i_lines = i_height_aligned; - p_pic->p[ U_PLANE ].i_visible_lines = i_height; - p_pic->p[ U_PLANE ].i_pitch = i_width_aligned; - p_pic->p[ U_PLANE ].i_visible_pitch = i_width; - p_pic->p[ V_PLANE ].i_lines = i_height_aligned; - p_pic->p[ V_PLANE ].i_visible_lines = i_height; - p_pic->p[ V_PLANE ].i_pitch = i_width_aligned; - p_pic->p[ V_PLANE ].i_visible_pitch = i_width; - p_pic->i_planes = 3; - break; - - case FOURCC_YUVA: - p_pic->p[ Y_PLANE ].i_lines = i_height_aligned; - p_pic->p[ Y_PLANE ].i_visible_lines = i_height; - p_pic->p[ Y_PLANE ].i_pitch = i_width_aligned; - p_pic->p[ Y_PLANE ].i_visible_pitch = i_width; - p_pic->p[ U_PLANE ].i_lines = i_height_aligned; - p_pic->p[ U_PLANE ].i_visible_lines = i_height; - p_pic->p[ U_PLANE ].i_pitch = i_width_aligned; - p_pic->p[ U_PLANE ].i_visible_pitch = i_width; - p_pic->p[ V_PLANE ].i_lines = i_height_aligned; - p_pic->p[ V_PLANE ].i_visible_lines = i_height; - p_pic->p[ V_PLANE ].i_pitch = i_width_aligned; - p_pic->p[ V_PLANE ].i_visible_pitch = i_width; - p_pic->p[ A_PLANE ].i_lines = i_height_aligned; - p_pic->p[ A_PLANE ].i_visible_lines = i_height; - p_pic->p[ A_PLANE ].i_pitch = i_width_aligned; - p_pic->p[ A_PLANE ].i_visible_pitch = i_width; - p_pic->i_planes = 4; - break; - - case FOURCC_YUVP: - p_pic->p->i_lines = i_height_aligned; - p_pic->p->i_visible_lines = i_height; - p_pic->p->i_pitch = i_width_aligned; - p_pic->p->i_visible_pitch = i_width; - p_pic->p->i_pixel_pitch = 8; - p_pic->i_planes = 1; - break; - - case FOURCC_Y211: - p_pic->p->i_lines = i_height_aligned; - p_pic->p->i_visible_lines = i_height; - p_pic->p->i_pitch = i_width_aligned; - p_pic->p->i_visible_pitch = i_width; - p_pic->p->i_pixel_pitch = 4; - p_pic->i_planes = 1; - break; - - case FOURCC_UYVY: - case FOURCC_YUY2: - p_pic->p->i_lines = i_height_aligned; - p_pic->p->i_visible_lines = i_height; - p_pic->p->i_pitch = i_width_aligned * 2; - p_pic->p->i_visible_pitch = i_width * 2; - p_pic->p->i_pixel_pitch = 4; - p_pic->i_planes = 1; - break; - - case FOURCC_RGB2: - p_pic->p->i_lines = i_height_aligned; - p_pic->p->i_visible_lines = i_height; - p_pic->p->i_pitch = i_width_aligned; - p_pic->p->i_visible_pitch = i_width; - p_pic->p->i_pixel_pitch = 1; - p_pic->i_planes = 1; - break; - - case FOURCC_RV15: - p_pic->p->i_lines = i_height_aligned; - p_pic->p->i_visible_lines = i_height; - p_pic->p->i_pitch = i_width_aligned * 2; - p_pic->p->i_visible_pitch = i_width * 2; - p_pic->p->i_pixel_pitch = 2; - p_pic->i_planes = 1; - break; - - case FOURCC_RV16: - p_pic->p->i_lines = i_height_aligned; - p_pic->p->i_visible_lines = i_height; - p_pic->p->i_pitch = i_width_aligned * 2; - p_pic->p->i_visible_pitch = i_width * 2; - p_pic->p->i_pixel_pitch = 2; - p_pic->i_planes = 1; - break; - - case FOURCC_RV24: - p_pic->p->i_lines = i_height_aligned; - p_pic->p->i_visible_lines = i_height; - p_pic->p->i_pitch = i_width_aligned * 3; - p_pic->p->i_visible_pitch = i_width * 3; - p_pic->p->i_pixel_pitch = 3; - p_pic->i_planes = 1; - break; - - case FOURCC_RV32: - case FOURCC_RGBA: - p_pic->p->i_lines = i_height_aligned; - p_pic->p->i_visible_lines = i_height; - p_pic->p->i_pitch = i_width_aligned * 4; - p_pic->p->i_visible_pitch = i_width * 4; - p_pic->p->i_pixel_pitch = 4; - p_pic->i_planes = 1; - break; - - case FOURCC_GREY: - p_pic->p->i_lines = i_height_aligned; - p_pic->p->i_visible_lines = i_height; - p_pic->p->i_pitch = i_width_aligned; - p_pic->p->i_visible_pitch = i_width; - p_pic->p->i_pixel_pitch = 1; - p_pic->i_planes = 1; - break; - - default: - msg_Err( p_this, "unknown chroma type 0x%.8x (%4.4s)", - i_chroma, (char*)&i_chroma ); - p_pic->i_planes = 0; - return VLC_EGENERIC; - } + if( !p_block ) + return VLC_EGENERIC; - return VLC_SUCCESS; -} + p_block->i_pts = + p_block->i_dts = p_picture->date; -/** - * Compare two chroma values - * - * This function returns 1 if the two fourcc values given as argument are - * the same format (eg. UYVY/UYNV) or almost the same format (eg. I420/YV12) - */ -int vout_ChromaCmp( vlc_fourcc_t i_chroma, vlc_fourcc_t i_amorhc ) -{ - /* If they are the same, they are the same ! */ - if( i_chroma == i_amorhc ) - { - return 1; - } + if( p_fmt ) + *p_fmt = fmt_out; + *pp_image = p_block; - /* Check for equivalence classes */ - switch( i_chroma ) - { - case FOURCC_I420: - case FOURCC_IYUV: - case FOURCC_YV12: - switch( i_amorhc ) - { - case FOURCC_I420: - case FOURCC_IYUV: - case FOURCC_YV12: - return 1; - - default: - return 0; - } - - case FOURCC_UYVY: - case FOURCC_UYNV: - case FOURCC_Y422: - switch( i_amorhc ) - { - case FOURCC_UYVY: - case FOURCC_UYNV: - case FOURCC_Y422: - return 1; - - default: - return 0; - } - - case FOURCC_YUY2: - case FOURCC_YUNV: - switch( i_amorhc ) - { - case FOURCC_YUY2: - case FOURCC_YUNV: - return 1; - - default: - return 0; - } - - default: - return 0; - } + return VLC_SUCCESS; } -/***************************************************************************** - * 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 ) -{ - int i; - - for( i = 0; i < p_src->i_planes ; i++ ) - { - if( p_src->p[i].i_pitch == p_dest->p[i].i_pitch ) - { - /* There are margins, but with the same width : perfect ! */ - p_this->p_libvlc->pf_memcpy( - p_dest->p[i].p_pixels, p_src->p[i].p_pixels, - p_src->p[i].i_pitch * p_src->p[i].i_visible_lines ); - } - else - { - /* We need to proceed line by line */ - uint8_t *p_in = p_src->p[i].p_pixels; - uint8_t *p_out = p_dest->p[i].p_pixels; - int i_line; - - for( i_line = p_src->p[i].i_visible_lines; i_line--; ) - { - p_this->p_libvlc->pf_memcpy( p_out, p_in, - p_src->p[i].i_visible_pitch ); - p_in += p_src->p[i].i_pitch; - p_out += p_dest->p[i].i_pitch; - } - } - } - - p_dest->date = p_src->date; - p_dest->b_force = p_src->b_force; - p_dest->i_nb_fields = p_src->i_nb_fields; - p_dest->b_progressive = p_src->b_progressive; - p_dest->b_top_field_first = p_src->b_top_field_first; -}