Commit 8bfc50dd authored by Laurent Aimar's avatar Laurent Aimar

Made vlc_fourcc_GetChromaDescription public.

parent 963ba769
......@@ -400,6 +400,29 @@ VLC_EXPORT( bool, vlc_fourcc_IsYUV, ( vlc_fourcc_t ) );
*/
VLC_EXPORT( bool, vlc_fourcc_AreUVPlanesSwapped, (vlc_fourcc_t , vlc_fourcc_t ) );
/**
* Chroma related informations.
*/
typedef struct {
unsigned plane_count;
struct {
struct {
unsigned num;
unsigned den;
} w;
struct {
unsigned num;
unsigned den;
} h;
} p[4];
unsigned pixel_size;
} vlc_chroma_description_t;
/**
* It returns a vlc_chroma_description_t describing the request fourcc or NULL
* if not found.
*/
VLC_EXPORT( const vlc_chroma_description_t *, vlc_fourcc_GetChromaDescription, ( vlc_fourcc_t fourcc ) );
#endif /* _VLC_FOURCC_H */
......@@ -509,6 +509,7 @@ vlc_fourcc_GetCodec
vlc_fourcc_GetCodecAudio
vlc_fourcc_GetCodecFromString
vlc_fourcc_GetDescription
vlc_fourcc_GetChromaDescription
vlc_fourcc_IsYUV
vlc_fourcc_GetRGBFallback
vlc_fourcc_GetYUVFallback
......
......@@ -1571,3 +1571,58 @@ bool vlc_fourcc_IsYUV(vlc_fourcc_t fcc)
return false;
}
#define PLANAR(n, w_den, h_den) \
{ .plane_count = n, \
.p = { {.w = {1, 1}, .h = {1, 1}}, \
{.w = {1,w_den}, .h = {1,h_den}}, \
{.w = {1,w_den}, .h = {1,h_den}}, \
{.w = {1, 1}, .h = {1, 1}} }, \
.pixel_size = 1 }
#define PACKED(size) \
{ .plane_count = 1, \
.p = { {.w = {1,1}, .h = {1,1}} }, \
.pixel_size = size }
static const struct
{
vlc_fourcc_t p_fourcc[5];
vlc_chroma_description_t description;
} p_list_chroma_description[] = {
{ { VLC_CODEC_I411, 0 }, PLANAR(3, 4, 1) },
{ { VLC_CODEC_YUV_PLANAR_410, 0 }, PLANAR(3, 4, 4) },
{ { VLC_CODEC_YUV_PLANAR_420, 0 }, PLANAR(3, 2, 2) },
{ { VLC_CODEC_YUV_PLANAR_422, 0 }, PLANAR(3, 2, 1) },
{ { VLC_CODEC_YUV_PLANAR_440, 0 }, PLANAR(3, 1, 2) },
{ { VLC_CODEC_YUV_PLANAR_444, 0 }, PLANAR(3, 1, 1) },
{ { VLC_CODEC_YUVA, 0 }, PLANAR(4, 1, 1) },
{ { VLC_CODEC_YUV_PACKED, 0 }, PACKED(2) },
{ { VLC_CODEC_RGB8, VLC_CODEC_GREY,
VLC_CODEC_YUVP, VLC_CODEC_RGBP, 0 }, PACKED(1) },
{ { VLC_CODEC_RGB16, VLC_CODEC_RGB15, 0 }, PACKED(2) },
{ { VLC_CODEC_RGB24, 0 }, PACKED(3) },
{ { VLC_CODEC_RGB32, VLC_CODEC_RGBA, 0 }, PACKED(4) },
{ { VLC_CODEC_Y211, 0 }, { 1, { {{1,4}, {1,1}} }, 4 } },
{ {0}, { 0, {}, 0 } }
};
#undef PACKED
#undef PLANAR
const vlc_chroma_description_t *vlc_fourcc_GetChromaDescription( vlc_fourcc_t i_fourcc )
{
for( unsigned i = 0; p_list_chroma_description[i].p_fourcc[0]; i++ )
{
const vlc_fourcc_t *p_fourcc = p_list_chroma_description[i].p_fourcc;
for( unsigned j = 0; p_fourcc[j]; j++ )
{
if( p_fourcc[j] == i_fourcc )
return &p_list_chroma_description[i].description;
}
}
return NULL;
}
......@@ -189,72 +189,6 @@ void picture_Reset( picture_t *p_picture )
/*****************************************************************************
*
*****************************************************************************/
typedef struct
{
unsigned i_plane_count;
struct
{
struct
{
unsigned i_num;
unsigned i_den;
} w;
struct
{
unsigned i_num;
unsigned i_den;
} h;
} p[VOUT_MAX_PLANES];
unsigned i_pixel_size;
} chroma_description_t;
#define PLANAR(n, w_den, h_den) \
{ n, { {{1,1}, {1,1}}, {{1,w_den}, {1,h_den}}, {{1,w_den}, {1,h_den}}, {{1,1}, {1,1}} }, 1 }
#define PACKED(size) \
{ 1, { {{1,1}, {1,1}} }, size }
static const struct
{
vlc_fourcc_t p_fourcc[5];
chroma_description_t description;
} p_chromas[] = {
{ { VLC_CODEC_I411, 0 }, PLANAR(3, 4, 1) },
{ { VLC_CODEC_I410, VLC_CODEC_YV9, 0 }, PLANAR(3, 4, 4) },
{ { VLC_CODEC_YV12, VLC_CODEC_I420, VLC_CODEC_J420, 0 }, PLANAR(3, 2, 2) },
{ { VLC_CODEC_I422, VLC_CODEC_J422, 0 }, PLANAR(3, 2, 1) },
{ { VLC_CODEC_I440, VLC_CODEC_J440, 0 }, PLANAR(3, 1, 2) },
{ { VLC_CODEC_I444, VLC_CODEC_J444, 0 }, PLANAR(3, 1, 1) },
{ { VLC_CODEC_YUVA, 0 }, PLANAR(4, 1, 1) },
{ { VLC_CODEC_UYVY, VLC_CODEC_VYUY, VLC_CODEC_YUYV, VLC_CODEC_YVYU, 0 }, PACKED(2) },
{ { VLC_CODEC_RGB8, VLC_CODEC_GREY, VLC_CODEC_YUVP, VLC_CODEC_RGBP, 0 }, PACKED(1) },
{ { VLC_CODEC_RGB16, VLC_CODEC_RGB15, 0 }, PACKED(2) },
{ { VLC_CODEC_RGB24, 0 }, PACKED(3) },
{ { VLC_CODEC_RGB32, VLC_CODEC_RGBA, 0 }, PACKED(4) },
{ { VLC_CODEC_Y211, 0 }, { 1, { {{1,4}, {1,1}} }, 4 } },
{ {0}, { 0, {}, 0 } }
};
#undef PACKED
#undef PLANAR
static const chroma_description_t *vlc_fourcc_GetChromaDescription( vlc_fourcc_t i_fourcc )
{
for( unsigned i = 0; p_chromas[i].p_fourcc[0]; i++ )
{
const vlc_fourcc_t *p_fourcc = p_chromas[i].p_fourcc;
for( unsigned j = 0; p_fourcc[j]; j++ )
{
if( p_fourcc[j] == i_fourcc )
return &p_chromas[i].description;
}
}
return NULL;
}
static int LCM( int a, int b )
{
return a * b / GCD( a, b );
......@@ -283,7 +217,7 @@ int picture_Setup( picture_t *p_picture, vlc_fourcc_t i_chroma,
video_format_Setup( &p_picture->format, i_chroma, i_width, i_height,
i_sar_num, i_sar_den );
const chroma_description_t *p_dsc =
const vlc_chroma_description_t *p_dsc =
vlc_fourcc_GetChromaDescription( p_picture->format.i_chroma );
if( !p_dsc )
return VLC_EGENERIC;
......@@ -297,30 +231,30 @@ int picture_Setup( picture_t *p_picture, vlc_fourcc_t i_chroma,
int i_modulo_w = 1;
int i_modulo_h = 1;
int i_ratio_h = 1;
for( unsigned i = 0; i < p_dsc->i_plane_count; i++ )
for( unsigned i = 0; i < p_dsc->plane_count; i++ )
{
i_modulo_w = LCM( i_modulo_w, 16 * p_dsc->p[i].w.i_den );
i_modulo_h = LCM( i_modulo_h, 16 * p_dsc->p[i].h.i_den );
if( i_ratio_h < p_dsc->p[i].h.i_den )
i_ratio_h = p_dsc->p[i].h.i_den;
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;
}
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->i_plane_count; i++ )
for( unsigned i = 0; i < p_dsc->plane_count; i++ )
{
plane_t *p = &p_picture->p[i];
p->i_lines = (i_height_aligned + i_height_extra ) * p_dsc->p[i].h.i_num / p_dsc->p[i].h.i_den;
p->i_visible_lines = i_height * p_dsc->p[i].h.i_num / p_dsc->p[i].h.i_den;
p->i_pitch = i_width_aligned * p_dsc->p[i].w.i_num / p_dsc->p[i].w.i_den * p_dsc->i_pixel_size;
p->i_visible_pitch = i_width * p_dsc->p[i].w.i_num / p_dsc->p[i].w.i_den * p_dsc->i_pixel_size;
p->i_pixel_pitch = p_dsc->i_pixel_size;
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;
assert( (p->i_pitch % 16) == 0 );
}
p_picture->i_planes = p_dsc->i_plane_count;
p_picture->i_planes = p_dsc->plane_count;
return VLC_SUCCESS;
}
......
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment