[FFmpeg-devel] [PATCH]Autodetect dds frames

[Carl Eugen Hoyos]

Hi!

Attached patch adds autodetection for dds.

Please comment, Carl Eugen
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diff --git a/libavformat/Makefile b/libavformat/Makefile
index 5380a2a..11bdd2b 100644
--- a/libavformat/Makefile
+++ b/libavformat/Makefile
@@ -200,6 +200,7 @@ OBJS-$(CONFIG_IMAGE2PIPE_MUXER)          += img2enc.o img2.o
 OBJS-$(CONFIG_IMAGE2_ALIAS_PIX_DEMUXER)  += img2_alias_pix.o
 OBJS-$(CONFIG_IMAGE2_BRENDER_PIX_DEMUXER) += img2_brender_pix.o
 OBJS-$(CONFIG_IMAGE_BMP_PIPE_DEMUXER)     += img2dec.o img2.o
+OBJS-$(CONFIG_IMAGE_DDS_PIPE_DEMUXER)     += img2dec.o img2.o
 OBJS-$(CONFIG_IMAGE_DPX_PIPE_DEMUXER)     += img2dec.o img2.o
 OBJS-$(CONFIG_IMAGE_EXR_PIPE_DEMUXER)     += img2dec.o img2.o
 OBJS-$(CONFIG_IMAGE_J2K_PIPE_DEMUXER)     += img2dec.o img2.o
diff --git a/libavformat/allformats.c b/libavformat/allformats.c
index 306e0c9..579a25a 100644
--- a/libavformat/allformats.c
+++ b/libavformat/allformats.c
@@ -334,6 +334,7 @@ void av_register_all(void)
 
     /* image demuxers */
     REGISTER_DEMUXER (IMAGE_BMP_PIPE,        image_bmp_pipe);
+    REGISTER_DEMUXER (IMAGE_DDS_PIPE,        image_dds_pipe);
     REGISTER_DEMUXER (IMAGE_DPX_PIPE,        image_dpx_pipe);
     REGISTER_DEMUXER (IMAGE_EXR_PIPE,        image_exr_pipe);
     REGISTER_DEMUXER (IMAGE_J2K_PIPE,        image_j2k_pipe);
diff --git a/libavformat/img2dec.c b/libavformat/img2dec.c
index 0830f00..772204c 100644
--- a/libavformat/img2dec.c
+++ b/libavformat/img2dec.c
@@ -609,6 +609,17 @@ static int bmp_probe(AVProbeData *p)
     return AVPROBE_SCORE_EXTENSION / 4;
 }
 
+static int dds_probe(AVProbeData *p)
+{
+    const uint8_t *b = p->buf;
+
+    if (   AV_RB64(b) == 0x444453207c000000
+        && AV_RL32(b +  8)
+        && AV_RL32(b + 12))
+        return AVPROBE_SCORE_MAX - 1;
+    return 0;
+}
+
 static int dpx_probe(AVProbeData *p)
 {
     const uint8_t *b = p->buf;
@@ -799,6 +810,7 @@ AVInputFormat ff_image_ ## imgname ## _pipe_demuxer = {\
 };
 
 IMAGEAUTO_DEMUXER(bmp,     AV_CODEC_ID_BMP)
+IMAGEAUTO_DEMUXER(dds,     AV_CODEC_ID_DDS)
 IMAGEAUTO_DEMUXER(dpx,     AV_CODEC_ID_DPX)
 IMAGEAUTO_DEMUXER(exr,     AV_CODEC_ID_EXR)
 IMAGEAUTO_DEMUXER(j2k,     AV_CODEC_ID_JPEG2000)