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authorPaul B Mahol <onemda@gmail.com>2018-12-08 13:06:31 +0100
committerPaul B Mahol <onemda@gmail.com>2018-12-10 11:20:41 +0100
commiteade85bbbd935f4ab5e6315a45650c2bf01465c6 (patch)
tree592880259439aac8bd1c044508949486ee44ffd2 /libavformat/img2dec.c
parent8f66d46ce5f41be8084ad14061cec8f8e769d711 (diff)
downloadffmpeg-streaming-eade85bbbd935f4ab5e6315a45650c2bf01465c6.zip
ffmpeg-streaming-eade85bbbd935f4ab5e6315a45650c2bf01465c6.tar.gz
avformat: add gif pipe demuxer
Diffstat (limited to 'libavformat/img2dec.c')
-rw-r--r--libavformat/img2dec.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/libavformat/img2dec.c b/libavformat/img2dec.c
index ff4757e..e82b1df 100644
--- a/libavformat/img2dec.c
+++ b/libavformat/img2dec.c
@@ -29,6 +29,7 @@
#include "libavutil/pixdesc.h"
#include "libavutil/parseutils.h"
#include "libavutil/intreadwrite.h"
+#include "libavcodec/gif.h"
#include "avformat.h"
#include "avio_internal.h"
#include "internal.h"
@@ -1005,6 +1006,19 @@ static int xwd_probe(AVProbeData *p)
return AVPROBE_SCORE_MAX / 2 + 1;
}
+static int gif_probe(AVProbeData *p)
+{
+ /* check magick */
+ if (memcmp(p->buf, gif87a_sig, 6) && memcmp(p->buf, gif89a_sig, 6))
+ return 0;
+
+ /* width or height contains zero? */
+ if (!AV_RL16(&p->buf[6]) || !AV_RL16(&p->buf[8]))
+ return 0;
+
+ return AVPROBE_SCORE_MAX - 1;
+}
+
#define IMAGEAUTO_DEMUXER(imgname, codecid)\
static const AVClass imgname ## _class = {\
.class_name = AV_STRINGIFY(imgname) " demuxer",\
@@ -1028,6 +1042,7 @@ 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(gif, AV_CODEC_ID_GIF)
IMAGEAUTO_DEMUXER(j2k, AV_CODEC_ID_JPEG2000)
IMAGEAUTO_DEMUXER(jpeg, AV_CODEC_ID_MJPEG)
IMAGEAUTO_DEMUXER(jpegls, AV_CODEC_ID_JPEGLS)
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