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authorwm4 <wm4@nowhere>2015-02-06 23:20:41 +0100
committerwm4 <wm4@nowhere>2015-02-06 23:22:16 +0100
commitbe5994a7818a63e16d78ed4817eb1ac490869bfe (patch)
treea6322d3e942bd945b32a1310aaa35a7fa2c0c116 /video
parent5de29b860b25bb4ba8b1e02d9b3aee7a81009be0 (diff)
downloadmpv-be5994a7818a63e16d78ed4817eb1ac490869bfe.tar.bz2
mpv-be5994a7818a63e16d78ed4817eb1ac490869bfe.tar.xz
video: work around libswscale for PNG pixel formats
The intention is that we can test vo_opengl with high bit depth PNGs better. This throws libswscale completely out of the loop, which before was needed in order to convert from big endian to little endian. Also apply a minimal cleanup to fmt-conversion.c (unrelated).
Diffstat (limited to 'video')
-rw-r--r--video/decode/vd_lavc.c3
-rw-r--r--video/fmt-conversion.c9
-rw-r--r--video/sws_utils.c36
-rw-r--r--video/sws_utils.h2
4 files changed, 45 insertions, 5 deletions
diff --git a/video/decode/vd_lavc.c b/video/decode/vd_lavc.c
index ff2fa71131..109099e382 100644
--- a/video/decode/vd_lavc.c
+++ b/video/decode/vd_lavc.c
@@ -45,6 +45,7 @@
#include "demux/stheader.h"
#include "demux/packet.h"
#include "video/csputils.h"
+#include "video/sws_utils.h"
#include "lavc.h"
@@ -648,7 +649,7 @@ static int decode(struct dec_video *vd, struct demux_packet *packet,
if (ctx->hwdec && ctx->hwdec->process_image)
mpi = ctx->hwdec->process_image(ctx, mpi);
- *out_image = mpi;
+ *out_image = mp_img_swap_to_native(mpi);
return 1;
}
diff --git a/video/fmt-conversion.c b/video/fmt-conversion.c
index dc278054f3..9ed9777736 100644
--- a/video/fmt-conversion.c
+++ b/video/fmt-conversion.c
@@ -88,29 +88,30 @@ static const struct {
{IMGFMT_XYZ12, AV_PIX_FMT_XYZ12},
- // ffmpeg only
-#if LIBAVUTIL_VERSION_MICRO >= 100
+#ifdef AV_PIX_FMT_YUV420P12
{IMGFMT_420P12, AV_PIX_FMT_YUV420P12},
{IMGFMT_420P14, AV_PIX_FMT_YUV420P14},
{IMGFMT_422P12, AV_PIX_FMT_YUV422P12},
{IMGFMT_422P14, AV_PIX_FMT_YUV422P14},
{IMGFMT_444P12, AV_PIX_FMT_YUV444P12},
{IMGFMT_444P14, AV_PIX_FMT_YUV444P14},
+#endif
+#ifdef AV_PIX_FMT_RGBA64
{IMGFMT_RGBA64, AV_PIX_FMT_RGBA64},
{IMGFMT_BGRA64, AV_PIX_FMT_BGRA64},
+#endif
+#if LIBAVUTIL_VERSION_MICRO >= 100
{IMGFMT_BGR0, AV_PIX_FMT_BGR0},
{IMGFMT_0RGB, AV_PIX_FMT_0RGB},
{IMGFMT_RGB0, AV_PIX_FMT_RGB0},
{IMGFMT_0BGR, AV_PIX_FMT_0BGR},
- {IMGFMT_BGR0, AV_PIX_FMT_BGR0},
#else
{IMGFMT_BGR0, AV_PIX_FMT_BGRA},
{IMGFMT_0RGB, AV_PIX_FMT_ARGB},
{IMGFMT_RGB0, AV_PIX_FMT_RGBA},
{IMGFMT_0BGR, AV_PIX_FMT_ABGR},
- {IMGFMT_BGR0, AV_PIX_FMT_BGRA},
#endif
#ifdef AV_PIX_FMT_YA16
diff --git a/video/sws_utils.c b/video/sws_utils.c
index 8937799f09..7f3cd089ac 100644
--- a/video/sws_utils.c
+++ b/video/sws_utils.c
@@ -20,6 +20,7 @@
#include <libswscale/swscale.h>
#include <libavcodec/avcodec.h>
+#include <libavutil/bswap.h>
#include <libavutil/opt.h>
#include "config.h"
@@ -34,6 +35,7 @@
#include "csputils.h"
#include "common/msg.h"
#include "video/filter/vf.h"
+#include "osdep/endian.h"
//global sws_flags from the command line
struct sws_opts {
@@ -317,4 +319,38 @@ int mp_sws_set_vf_equalizer(struct mp_sws_context *sws, struct vf_seteq *eq)
return mp_sws_reinit(sws) >= 0 ? 1 : -1;
}
+static const int endian_swaps[][2] = {
+#if BYTE_ORDER == LITTLE_ENDIAN
+#if defined(AV_PIX_FMT_YA16) && defined(AV_PIX_FMT_RGBA64)
+ {AV_PIX_FMT_YA16BE, AV_PIX_FMT_YA16LE},
+ {AV_PIX_FMT_RGBA64BE, AV_PIX_FMT_RGBA64LE},
+ {AV_PIX_FMT_GRAY16BE, AV_PIX_FMT_GRAY16LE},
+ {AV_PIX_FMT_RGB48BE, AV_PIX_FMT_RGB48LE},
+#endif
+#endif
+ {AV_PIX_FMT_NONE, AV_PIX_FMT_NONE}
+};
+
+// Swap _some_ non-native endian formats to native. We do this specifically
+// for pixel formats used by PNG, to avoid going through libswscale, which
+// might reduce the effective bit depth in some cases.
+struct mp_image *mp_img_swap_to_native(struct mp_image *img)
+{
+ int to = AV_PIX_FMT_NONE;
+ for (int n = 0; endian_swaps[n][0] != AV_PIX_FMT_NONE; n++) {
+ if (endian_swaps[n][0] == img->fmt.avformat)
+ to = endian_swaps[n][1];
+ }
+ if (to == AV_PIX_FMT_NONE || !mp_image_make_writeable(img))
+ return img;
+ int elems = img->fmt.bytes[0] / 2 * img->w;
+ for (int y = 0; y < img->h; y++) {
+ uint16_t *p = (uint16_t *)(img->planes[0] + y * img->stride[0]);
+ for (int i = 0; i < elems; i++)
+ p[i] = av_be2ne16(p[i]);
+ }
+ mp_image_setfmt(img, pixfmt2imgfmt(to));
+ return img;
+}
+
// vim: ts=4 sw=4 et tw=80
diff --git a/video/sws_utils.h b/video/sws_utils.h
index 7c7c1af34b..ac643dd7cf 100644
--- a/video/sws_utils.h
+++ b/video/sws_utils.h
@@ -59,6 +59,8 @@ struct vf_seteq;
int mp_sws_set_vf_equalizer(struct mp_sws_context *sws, struct vf_seteq *eq);
int mp_sws_get_vf_equalizer(struct mp_sws_context *sws, struct vf_seteq *eq);
+struct mp_image *mp_img_swap_to_native(struct mp_image *img);
+
#endif /* MP_SWS_UTILS_H */
// vim: ts=4 sw=4 et tw=80