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Commit 9b0fed98 authored by Gildas Bazin's avatar Gildas Bazin
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* modules/codec/libmpeg2.c: backport of 13117 from trunk.

parent c62e5905
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Showing with 18 additions and 17 deletions
modules/codec/libmpeg2.c
View file @ 9b0fed98
......@@ -35,7 +35,7 @@
/* Aspect ratio (ISO/IEC 13818-2 section 6.3.3, table 6-3) */
#define AR_SQUARE_PICTURE 1 /* square pixels */
#define AR_3_4_PICTURE 2 /* 3:4 picture (TV) */
#define AR_4_3_PICTURE 2 /* 4:3 picture (TV) */
#define AR_16_9_PICTURE 3 /* 16:9 picture (wide screen) */
#define AR_221_1_PICTURE 4 /* 2.21:1 picture (movie) */
......@@ -625,35 +625,34 @@ static picture_t *GetNewPicture( decoder_t *p_dec, uint8_t **pp_buf )
*****************************************************************************/
static void GetAR( decoder_t *p_dec )
{
decoder_sys_t *p_sys = p_dec->p_sys;
decoder_sys_t *p_sys = p_dec->p_sys;
/* Check whether the input gave a particular aspect ratio */
if( p_dec->fmt_in.video.i_aspect )
{
/* AR is relative to width/height, not display_width/height */
p_sys->i_aspect = p_dec->fmt_in.video.i_aspect;
if( p_sys->i_aspect <= AR_221_1_PICTURE )
switch( p_sys->i_aspect )
{
case AR_3_4_PICTURE:
case AR_4_3_PICTURE:
p_sys->i_aspect = VOUT_ASPECT_FACTOR * 4 / 3;
p_sys->i_sar_num = p_sys->p_info->sequence->height * 4;
p_sys->i_sar_den = p_sys->p_info->sequence->width * 3;
p_sys->i_sar_num = p_sys->p_info->sequence->picture_height * 4;
p_sys->i_sar_den = p_sys->p_info->sequence->picture_width * 3;
break;
case AR_16_9_PICTURE:
p_sys->i_aspect = VOUT_ASPECT_FACTOR * 16 / 9;
p_sys->i_sar_num = p_sys->p_info->sequence->height * 16;
p_sys->i_sar_den = p_sys->p_info->sequence->width * 9;
p_sys->i_sar_num = p_sys->p_info->sequence->picture_height * 16;
p_sys->i_sar_den = p_sys->p_info->sequence->picture_width * 9;
break;
case AR_221_1_PICTURE:
p_sys->i_aspect = VOUT_ASPECT_FACTOR * 221 / 100;
p_sys->i_sar_num = p_sys->p_info->sequence->height * 221;
p_sys->i_sar_den = p_sys->p_info->sequence->width * 100;
p_sys->i_sar_num = p_sys->p_info->sequence->picture_height * 221;
p_sys->i_sar_den = p_sys->p_info->sequence->picture_width * 100;
break;
case AR_SQUARE_PICTURE:
p_sys->i_aspect = VOUT_ASPECT_FACTOR *
p_sys->p_info->sequence->width /
p_sys->p_info->sequence->height;
p_sys->p_info->sequence->picture_width /
p_sys->p_info->sequence->picture_height;
p_sys->i_sar_num = p_sys->i_sar_den = 1;
break;
}
......@@ -664,10 +663,10 @@ static void GetAR( decoder_t *p_dec )
if( p_sys->p_info->sequence->pixel_height > 0 )
{
p_sys->i_aspect =
((uint64_t)p_sys->p_info->sequence->display_width) *
((uint64_t)p_sys->p_info->sequence->picture_width) *
p_sys->p_info->sequence->pixel_width *
VOUT_ASPECT_FACTOR /
p_sys->p_info->sequence->display_height /
p_sys->p_info->sequence->picture_height /
p_sys->p_info->sequence->pixel_height;
p_sys->i_sar_num = p_sys->p_info->sequence->pixel_width;
p_sys->i_sar_den = p_sys->p_info->sequence->pixel_height;
......@@ -678,12 +677,14 @@ static void GetAR( decoder_t *p_dec )
* This shouldn't happen and if it does it is a bug
* in libmpeg2 (likely triggered by an invalid stream) */
p_sys->i_aspect = VOUT_ASPECT_FACTOR * 4 / 3;
p_sys->i_sar_num = p_sys->p_info->sequence->display_height * 4;
p_sys->i_sar_den = p_sys->p_info->sequence->display_width * 3;
p_sys->i_sar_num = p_sys->p_info->sequence->picture_height * 4;
p_sys->i_sar_den = p_sys->p_info->sequence->picture_width * 3;
}
}
msg_Dbg( p_dec, "%dx%d, aspect %d, sar %i:%i, %u.%03u fps",
msg_Dbg( p_dec, "%dx%d (display %d,%d), aspect %d, sar %i:%i, %u.%03u fps",
p_sys->p_info->sequence->picture_width,
p_sys->p_info->sequence->picture_height,
p_sys->p_info->sequence->display_width,
p_sys->p_info->sequence->display_height,
p_sys->i_aspect, p_sys->i_sar_num, p_sys->i_sar_den,
......
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