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Commit 3ea6a8b2 authored by Steven Walters's avatar Steven Walters Committed by Fiona Glaser
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Resize filter updates 

Use AVPixFmtDescriptors to pick the most compatible x264 csp for any pixel format.
Fix deprecated use of av_set_int.
Now requires libavutil >= 51.19.0
parent f71d047d
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configure
View file @ 3ea6a8b2
......@@ -768,10 +768,10 @@ if [ "$swscale" = "auto" ] ; then
[ -z "$SWSCALE_LIBS" ] && SWSCALE_LIBS="-lswscale -lavutil"
if cc_check "libswscale/swscale.h" "$SWSCALE_CFLAGS $SWSCALE_LIBS" "sws_init_context(0,0,0);" ; then
if cc_check "libavutil/pixdesc.h" "$SWSCALE_CFLAGS $SWSCALE_LIBS" "av_get_pix_fmt_name(0);" ; then
if cpp_check "libavutil/pixdesc.h" "$SWSCALE_CFLAGS $SWSCALE_LIBS" "defined(PIX_FMT_RGB)" ; then
swscale="yes"
else
echo "Warning: av_get_pix_fmt_name is missing from libavutil, update for swscale support"
echo "Warning: PIX_FMT_RGB is missing from libavutil, update for swscale support"
fi
fi
fi
......
filters/video/resize.c
View file @ 3ea6a8b2
......@@ -45,6 +45,10 @@ static int full_check( video_info_t *info, x264_param_t *param )
#include <libavutil/opt.h>
#include <libavutil/pixdesc.h>
#ifndef PIX_FMT_BGRA64
#define PIX_FMT_BGRA64 PIX_FMT_NONE
#endif
typedef struct
{
int width;
......@@ -145,62 +149,63 @@ static int convert_csp_to_pix_fmt( int csp )
case X264_CSP_YV24: /* specially handled via swapping chroma */
case X264_CSP_I444: return csp&X264_CSP_HIGH_DEPTH ? PIX_FMT_YUV444P16 : PIX_FMT_YUV444P;
case X264_CSP_RGB: return csp&X264_CSP_HIGH_DEPTH ? PIX_FMT_RGB48 : PIX_FMT_RGB24;
/* the next 3 csps have no equivalent 16bit depth in swscale */
case X264_CSP_BGR: return csp&X264_CSP_HIGH_DEPTH ? PIX_FMT_BGR48 : PIX_FMT_BGR24;
case X264_CSP_BGRA: return csp&X264_CSP_HIGH_DEPTH ? PIX_FMT_BGRA64 : PIX_FMT_BGRA;
/* the next csp has no equivalent 16bit depth in swscale */
case X264_CSP_NV12: return csp&X264_CSP_HIGH_DEPTH ? PIX_FMT_NONE : PIX_FMT_NV12;
case X264_CSP_BGR: return csp&X264_CSP_HIGH_DEPTH ? PIX_FMT_NONE : PIX_FMT_BGR24;
case X264_CSP_BGRA: return csp&X264_CSP_HIGH_DEPTH ? PIX_FMT_NONE : PIX_FMT_BGRA;
default: return PIX_FMT_NONE;
}
}
static int pix_number_of_planes( const AVPixFmtDescriptor *pix_desc )
{
int num_planes = 0;
for( int i = 0; i < pix_desc->nb_components; i++ )
{
int plane_plus1 = pix_desc->comp[i].plane + 1;
num_planes = X264_MAX( plane_plus1, num_planes );
}
return num_planes;
}
static int pick_closest_supported_csp( int csp )
{
int pix_fmt = convert_csp_to_pix_fmt( csp );
switch( pix_fmt )
// first determine the base csp
int ret = X264_CSP_NONE;
const AVPixFmtDescriptor *pix_desc = av_pix_fmt_descriptors+pix_fmt;
if( (unsigned)pix_fmt >= PIX_FMT_NB || !pix_desc->name )
return ret;
const char *pix_fmt_name = pix_desc->name;
int is_rgb = pix_desc->flags & (PIX_FMT_RGB | PIX_FMT_PAL);
int is_bgr = !!strstr( pix_fmt_name, "bgr" );
if( is_bgr || is_rgb )
{
if( pix_desc->nb_components == 4 ) // has alpha
ret = X264_CSP_BGRA;
else if( is_bgr )
ret = X264_CSP_BGR;
else
ret = X264_CSP_RGB;
}
else
{
case PIX_FMT_YUV420P16LE:
case PIX_FMT_YUV420P16BE:
return X264_CSP_I420 | X264_CSP_HIGH_DEPTH;
case PIX_FMT_YUV422P:
case PIX_FMT_YUYV422:
case PIX_FMT_UYVY422:
case PIX_FMT_YUVJ422P:
return X264_CSP_I422;
case PIX_FMT_YUV422P16LE:
case PIX_FMT_YUV422P16BE:
return X264_CSP_I422 | X264_CSP_HIGH_DEPTH;
case PIX_FMT_YUV444P:
case PIX_FMT_YUVJ444P:
return X264_CSP_I444;
case PIX_FMT_YUV444P16LE:
case PIX_FMT_YUV444P16BE:
return X264_CSP_I444 | X264_CSP_HIGH_DEPTH;
case PIX_FMT_RGB24:
case PIX_FMT_RGB565BE:
case PIX_FMT_RGB565LE:
case PIX_FMT_RGB555BE:
case PIX_FMT_RGB555LE:
return X264_CSP_RGB;
case PIX_FMT_RGB48BE:
case PIX_FMT_RGB48LE:
return X264_CSP_RGB | X264_CSP_HIGH_DEPTH;
case PIX_FMT_BGR24:
case PIX_FMT_BGR565BE:
case PIX_FMT_BGR565LE:
case PIX_FMT_BGR555BE:
case PIX_FMT_BGR555LE:
return X264_CSP_BGR;
case PIX_FMT_ARGB:
case PIX_FMT_RGBA:
case PIX_FMT_ABGR:
case PIX_FMT_BGRA:
return X264_CSP_BGRA;
case PIX_FMT_NV12:
case PIX_FMT_NV21:
return X264_CSP_NV12;
default:
return X264_CSP_I420;
// yuv-based
if( pix_desc->nb_components == 1 || pix_desc->nb_components == 2 ) // no chroma
ret = X264_CSP_I420;
else if( pix_desc->log2_chroma_w && pix_desc->log2_chroma_h ) // reduced chroma width & height
ret = (pix_desc->nb_components == pix_number_of_planes( pix_desc )) ? X264_CSP_I420 : X264_CSP_NV12;
else if( pix_desc->log2_chroma_w ) // reduced chroma width only
ret = (pix_desc->nb_components == pix_number_of_planes( pix_desc )) ? X264_CSP_I422 : X264_CSP_NV16;
else
ret = X264_CSP_I444;
}
// now determine high depth
for( int i = 0; i < pix_desc->nb_components; i++ )
if( pix_desc->comp[i].depth_minus1 >= 8 )
ret |= X264_CSP_HIGH_DEPTH;
return ret;
}
static int handle_opts( const char **optlist, char **opts, video_info_t *info, resizer_hnd_t *h )
......@@ -348,24 +353,22 @@ static int handle_opts( const char **optlist, char **opts, video_info_t *info, r
static int x264_init_sws_context( resizer_hnd_t *h )
{
if( h->ctx )
sws_freeContext( h->ctx );
h->ctx = sws_alloc_context();
if( !h->ctx )
{
h->ctx = sws_alloc_context();
if( !h->ctx )
return -1;
return -1;
/* set flags that will not change */
av_set_int( h->ctx, "sws_flags", h->ctx_flags );
av_set_int( h->ctx, "dstw", h->dst.width );
av_set_int( h->ctx, "dsth", h->dst.height );
av_set_int( h->ctx, "dst_format", h->dst.pix_fmt );
av_set_int( h->ctx, "dst_range", h->dst.range );
}
av_opt_set_int( h->ctx, "sws_flags", h->ctx_flags, 0 );
av_opt_set_int( h->ctx, "dstw", h->dst.width, 0 );
av_opt_set_int( h->ctx, "dsth", h->dst.height, 0 );
av_opt_set_int( h->ctx, "dst_format", h->dst.pix_fmt, 0 );
av_opt_set_int( h->ctx, "dst_range", h->dst.range, 0 );
av_set_int( h->ctx, "srcw", h->scale.width );
av_set_int( h->ctx, "srch", h->scale.height );
av_set_int( h->ctx, "src_format", h->scale.pix_fmt );
av_set_int( h->ctx, "src_range", h->scale.range );
av_opt_set_int( h->ctx, "srcw", h->scale.width, 0 );
av_opt_set_int( h->ctx, "srch", h->scale.height, 0 );
av_opt_set_int( h->ctx, "src_format", h->scale.pix_fmt, 0 );
av_opt_set_int( h->ctx, "src_range", h->scale.range, 0 );
/* FIXME: use the correct matrix coefficients (only YUV -> RGB conversions are supported) */
sws_setColorspaceDetails( h->ctx,
......@@ -423,11 +426,8 @@ static int init( hnd_t *handle, cli_vid_filter_t *filter, video_info_t *info, x2
/* only in normalization scenarios is the input capable of changing properties */
h->variable_input = 1;
h->dst_csp = pick_closest_supported_csp( info->csp );
/* now fix the catch-all i420 choice if it does not allow for the current input resolution dimensions. */
if( h->dst_csp == X264_CSP_I420 && info->width&1 )
h->dst_csp = X264_CSP_I444;
if( h->dst_csp == X264_CSP_I420 && info->height&1 )
h->dst_csp = X264_CSP_I422;
FAIL_IF_ERROR( h->dst_csp == X264_CSP_NONE,
"filter get invalid input pixel format %d (colorspace %d)\n", convert_csp_to_pix_fmt( info->csp ), info->csp )
}
else if( handle_opts( optlist, opts, info, h ) )
return -1;
......
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