Merge remote-tracking branch 'qatar/master'

* qatar/master: (31 commits)
  tiffenc: initialize forgotten avctx.
  avplay: free the active audio packet at exit.
  avplay: free rdft data used for spectrogram analysis.
  log.h: make AVClass a named struct
  fix ac3 encoder documentation
  vc1: more prettyprinting cosmetics
  vc1: prettyprint some tables
  vc1: K&R formatting cosmetics
  AVOptions: bump minor and add APIchanges entry.
  cmdutils/avtools: simplify show_help() by using av_opt_child_class_next()
  AVOptions: rename FF_OPT_TYPE_* => AV_OPT_TYPE_*
  Remove all uses of deprecated AVOptions API.
  AVOptions: add av_opt_next, deprecate av_next_option.
  AVOptions: add functions for evaluating option strings.
  AVOptions: split get_number().
  AVOptions: add av_opt_get*, deprecate av_get*.
  AVOptions: add av_opt_set*().
  AVOptions: add new API for enumerating children.
  rv34: move inverse transform functions to DSP context
  flvenc: Write the right metadata entry count
  ...

Conflicts:
	avconv.c
	cmdutils.c
	doc/APIchanges
	ffplay.c
	ffprobe.c
	libavcodec/ac3dec.c
	libavcodec/h264.c
	libavcodec/libvpxenc.c
	libavcodec/libx264.c
	libavcodec/mpeg12enc.c
	libavcodec/options.c
	libavdevice/libdc1394.c
	libavdevice/v4l2.c
	libavfilter/vf_drawtext.c
	libavformat/flvdec.c
	libavformat/mpegtsenc.c
	libavformat/options.c
	libavutil/avutil.h
	libavutil/opt.c
	libswscale/utils.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>

13 files changed, 47 insertions, 47 deletions

diff --git a/libavdevice/alsa-audio-dec.c b/libavdevice/alsa-audio-dec.c
index ac3840acbc..8fe82d9398 100644
--- a/libavdevice/alsa-audio-dec.c
+++ b/libavdevice/alsa-audio-dec.c
@@ -132,8 +132,8 @@ static int audio_read_packet(AVFormatContext *s1, AVPacket *pkt)
 }
 
 static const AVOption options[] = {
-    { "sample_rate", "", offsetof(AlsaData, sample_rate), FF_OPT_TYPE_INT, {.dbl = 48000}, 1, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
-    { "channels",    "", offsetof(AlsaData, channels),    FF_OPT_TYPE_INT, {.dbl = 2},     1, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
+    { "sample_rate", "", offsetof(AlsaData, sample_rate), AV_OPT_TYPE_INT, {.dbl = 48000}, 1, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
+    { "channels",    "", offsetof(AlsaData, channels),    AV_OPT_TYPE_INT, {.dbl = 2},     1, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
     { NULL },
 };
 
diff --git a/libavdevice/bktr.c b/libavdevice/bktr.c
index 3de3c8b653..b16adc9f6e 100644
--- a/libavdevice/bktr.c
+++ b/libavdevice/bktr.c
@@ -325,15 +325,15 @@ static int grab_read_close(AVFormatContext *s1)
 #define OFFSET(x) offsetof(VideoData, x)
 #define DEC AV_OPT_FLAG_DECODING_PARAM
 static const AVOption options[] = {
-    { "standard", "", offsetof(VideoData, standard), FF_OPT_TYPE_INT, {.dbl = VIDEO_FORMAT}, PAL, NTSCJ, AV_OPT_FLAG_DECODING_PARAM, "standard" },
-    { "PAL",      "", 0, FF_OPT_TYPE_CONST, {.dbl = PAL},   0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
-    { "NTSC",     "", 0, FF_OPT_TYPE_CONST, {.dbl = NTSC},  0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
-    { "SECAM",    "", 0, FF_OPT_TYPE_CONST, {.dbl = SECAM}, 0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
-    { "PALN",     "", 0, FF_OPT_TYPE_CONST, {.dbl = PALN},  0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
-    { "PALM",     "", 0, FF_OPT_TYPE_CONST, {.dbl = PALM},  0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
-    { "NTSCJ",    "", 0, FF_OPT_TYPE_CONST, {.dbl = NTSCJ}, 0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
-    { "video_size", "A string describing frame size, such as 640x480 or hd720.", OFFSET(video_size), FF_OPT_TYPE_STRING, {.str = "vga"}, 0, 0, DEC },
-    { "framerate", "", OFFSET(framerate), FF_OPT_TYPE_STRING, {.str = NULL}, 0, 0, DEC },
+    { "standard", "", offsetof(VideoData, standard), AV_OPT_TYPE_INT, {.dbl = VIDEO_FORMAT}, PAL, NTSCJ, AV_OPT_FLAG_DECODING_PARAM, "standard" },
+    { "PAL",      "", 0, AV_OPT_TYPE_CONST, {.dbl = PAL},   0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
+    { "NTSC",     "", 0, AV_OPT_TYPE_CONST, {.dbl = NTSC},  0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
+    { "SECAM",    "", 0, AV_OPT_TYPE_CONST, {.dbl = SECAM}, 0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
+    { "PALN",     "", 0, AV_OPT_TYPE_CONST, {.dbl = PALN},  0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
+    { "PALM",     "", 0, AV_OPT_TYPE_CONST, {.dbl = PALM},  0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
+    { "NTSCJ",    "", 0, AV_OPT_TYPE_CONST, {.dbl = NTSCJ}, 0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
+    { "video_size", "A string describing frame size, such as 640x480 or hd720.", OFFSET(video_size), AV_OPT_TYPE_STRING, {.str = "vga"}, 0, 0, DEC },
+    { "framerate", "", OFFSET(framerate), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, DEC },
     { NULL },
 };
 
diff --git a/libavdevice/dv1394.c b/libavdevice/dv1394.c
index 779117aee3..951445f813 100644
--- a/libavdevice/dv1394.c
+++ b/libavdevice/dv1394.c
@@ -214,10 +214,10 @@ static int dv1394_close(AVFormatContext * context)
 }
 
 static const AVOption options[] = {
-    { "standard", "", offsetof(struct dv1394_data, format), FF_OPT_TYPE_INT, {.dbl = DV1394_NTSC}, DV1394_PAL, DV1394_NTSC, AV_OPT_FLAG_DECODING_PARAM, "standard" },
-    { "PAL",      "", 0, FF_OPT_TYPE_CONST, {.dbl = DV1394_PAL},   0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
-    { "NTSC",     "", 0, FF_OPT_TYPE_CONST, {.dbl = DV1394_NTSC},  0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
-    { "channel",  "", offsetof(struct dv1394_data, channel), FF_OPT_TYPE_INT, {.dbl = DV1394_DEFAULT_CHANNEL}, 0, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
+    { "standard", "", offsetof(struct dv1394_data, format), AV_OPT_TYPE_INT, {.dbl = DV1394_NTSC}, DV1394_PAL, DV1394_NTSC, AV_OPT_FLAG_DECODING_PARAM, "standard" },
+    { "PAL",      "", 0, AV_OPT_TYPE_CONST, {.dbl = DV1394_PAL},   0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
+    { "NTSC",     "", 0, AV_OPT_TYPE_CONST, {.dbl = DV1394_NTSC},  0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
+    { "channel",  "", offsetof(struct dv1394_data, channel), AV_OPT_TYPE_INT, {.dbl = DV1394_DEFAULT_CHANNEL}, 0, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
     { NULL },
 };
 
diff --git a/libavdevice/fbdev.c b/libavdevice/fbdev.c
index 0b720056a6..20c2ab8019 100644
--- a/libavdevice/fbdev.c
+++ b/libavdevice/fbdev.c
@@ -247,7 +247,7 @@ av_cold static int fbdev_read_close(AVFormatContext *avctx)
 #define OFFSET(x) offsetof(FBDevContext, x)
 #define DEC AV_OPT_FLAG_DECODING_PARAM
 static const AVOption options[] = {
-    { "framerate","", OFFSET(framerate), FF_OPT_TYPE_STRING, {.str = "25"}, 0, 0, DEC },
+    { "framerate","", OFFSET(framerate), AV_OPT_TYPE_STRING, {.str = "25"}, 0, 0, DEC },
     { NULL },
 };
 
diff --git a/libavdevice/jack_audio.c b/libavdevice/jack_audio.c
index 9a6b4865bd..ac84786b7a 100644
--- a/libavdevice/jack_audio.c
+++ b/libavdevice/jack_audio.c
@@ -314,7 +314,7 @@ static int audio_read_close(AVFormatContext *context)
 
 #define OFFSET(x) offsetof(JackData, x)
 static const AVOption options[] = {
-    { "channels", "Number of audio channels.", OFFSET(nports), FF_OPT_TYPE_INT, { 2 }, 1, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
+    { "channels", "Number of audio channels.", OFFSET(nports), AV_OPT_TYPE_INT, { 2 }, 1, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
     { NULL },
 };
 
diff --git a/libavdevice/libcdio.c b/libavdevice/libcdio.c
index 7218788320..385e295d3b 100644
--- a/libavdevice/libcdio.c
+++ b/libavdevice/libcdio.c
@@ -160,11 +160,11 @@ static int read_seek(AVFormatContext *ctx, int stream_index, int64_t timestamp,
 #define OFFSET(x) offsetof(CDIOContext, x)
 #define DEC AV_OPT_FLAG_DECODING_PARAM
 static const AVOption options[] = {
-    { "speed",              "Drive reading speed.", OFFSET(speed),         FF_OPT_TYPE_INT,   { 0 }, 0,       INT_MAX, DEC },
-    { "paranoia_mode",      "Error recovery mode.", OFFSET(paranoia_mode), FF_OPT_TYPE_FLAGS, { 0 }, INT_MIN, INT_MAX, DEC, "paranoia_mode" },
-        { "verify",         "Verify data integrity in overlap area", 0,    FF_OPT_TYPE_CONST, { PARANOIA_MODE_VERIFY },    0, 0, DEC, "paranoia_mode" },
-        { "overlap",        "Perform overlapped reads.",             0,    FF_OPT_TYPE_CONST, { PARANOIA_MODE_OVERLAP },   0, 0, DEC, "paranoia_mode" },
-        { "neverskip",      "Do not skip failed reads.",             0,    FF_OPT_TYPE_CONST, { PARANOIA_MODE_NEVERSKIP }, 0, 0, DEC, "paranoia_mode" },
+    { "speed",              "Drive reading speed.", OFFSET(speed),         AV_OPT_TYPE_INT,   { 0 }, 0,       INT_MAX, DEC },
+    { "paranoia_mode",      "Error recovery mode.", OFFSET(paranoia_mode), AV_OPT_TYPE_FLAGS, { 0 }, INT_MIN, INT_MAX, DEC, "paranoia_mode" },
+        { "verify",         "Verify data integrity in overlap area", 0,    AV_OPT_TYPE_CONST, { PARANOIA_MODE_VERIFY },    0, 0, DEC, "paranoia_mode" },
+        { "overlap",        "Perform overlapped reads.",             0,    AV_OPT_TYPE_CONST, { PARANOIA_MODE_OVERLAP },   0, 0, DEC, "paranoia_mode" },
+        { "neverskip",      "Do not skip failed reads.",             0,    AV_OPT_TYPE_CONST, { PARANOIA_MODE_NEVERSKIP }, 0, 0, DEC, "paranoia_mode" },
     { NULL },
 };
 
diff --git a/libavdevice/libdc1394.c b/libavdevice/libdc1394.c
index dffb06ca1a..684047e0cb 100644
--- a/libavdevice/libdc1394.c
+++ b/libavdevice/libdc1394.c
@@ -85,9 +85,9 @@ struct dc1394_frame_rate {
 #define OFFSET(x) offsetof(dc1394_data, x)
 #define DEC AV_OPT_FLAG_DECODING_PARAM
 static const AVOption options[] = {
-    { "video_size", "A string describing frame size, such as 640x480 or hd720.", OFFSET(video_size), FF_OPT_TYPE_STRING, {.str = "qvga"}, 0, 0, DEC },
-    { "pixel_format", "", OFFSET(pixel_format), FF_OPT_TYPE_STRING, {.str = "uyvy422"}, 0, 0, DEC },
-    { "framerate", "", OFFSET(framerate), FF_OPT_TYPE_STRING, {.str = "ntsc"}, 0, 0, DEC },
+    { "video_size", "A string describing frame size, such as 640x480 or hd720.", OFFSET(video_size), AV_OPT_TYPE_STRING, {.str = "qvga"}, 0, 0, DEC },
+    { "pixel_format", "", OFFSET(pixel_format), AV_OPT_TYPE_STRING, {.str = "uyvy422"}, 0, 0, DEC },
+    { "framerate", "", OFFSET(framerate), AV_OPT_TYPE_STRING, {.str = "ntsc"}, 0, 0, DEC },
     { NULL },
 };
 
@@ -154,7 +154,7 @@ static int dc1394_read_header(AVFormatContext *c, AVFormatParameters * ap)
             goto out;
         }
     }
-    
+
     /* Choose the best mode. */
     rate = (ap->time_base.num ? av_rescale(1000, ap->time_base.den, ap->time_base.num) : -1);
     max_score = -1;
diff --git a/libavdevice/oss_audio.c b/libavdevice/oss_audio.c
index ab666e8703..56b85e1384 100644
--- a/libavdevice/oss_audio.c
+++ b/libavdevice/oss_audio.c
@@ -282,8 +282,8 @@ static int audio_read_close(AVFormatContext *s1)
 
 #if CONFIG_OSS_INDEV
 static const AVOption options[] = {
-    { "sample_rate", "", offsetof(AudioData, sample_rate), FF_OPT_TYPE_INT, {.dbl = 48000}, 1, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
-    { "channels",    "", offsetof(AudioData, channels),    FF_OPT_TYPE_INT, {.dbl = 2},     1, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
+    { "sample_rate", "", offsetof(AudioData, sample_rate), AV_OPT_TYPE_INT, {.dbl = 48000}, 1, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
+    { "channels",    "", offsetof(AudioData, channels),    AV_OPT_TYPE_INT, {.dbl = 2},     1, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
     { NULL },
 };
 
diff --git a/libavdevice/sndio_dec.c b/libavdevice/sndio_dec.c
index 6e386c6d99..f6417f2535 100644
--- a/libavdevice/sndio_dec.c
+++ b/libavdevice/sndio_dec.c
@@ -93,8 +93,8 @@ static av_cold int audio_read_close(AVFormatContext *s1)
 }
 
 static const AVOption options[] = {
-    { "sample_rate", "", offsetof(SndioData, sample_rate), FF_OPT_TYPE_INT, {.dbl = 48000}, 1, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
-    { "channels",    "", offsetof(SndioData, channels),    FF_OPT_TYPE_INT, {.dbl = 2},     1, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
+    { "sample_rate", "", offsetof(SndioData, sample_rate), AV_OPT_TYPE_INT, {.dbl = 48000}, 1, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
+    { "channels",    "", offsetof(SndioData, channels),    AV_OPT_TYPE_INT, {.dbl = 2},     1, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
     { NULL },
 };
 
diff --git a/libavdevice/v4l.c b/libavdevice/v4l.c
index f110f4439e..ec0029afcb 100644
--- a/libavdevice/v4l.c
+++ b/libavdevice/v4l.c
@@ -339,10 +339,10 @@ static int grab_read_close(AVFormatContext *s1)
 }
 
 static const AVOption options[] = {
-    { "standard", "", offsetof(VideoData, standard), FF_OPT_TYPE_INT, {.dbl = VIDEO_MODE_NTSC}, VIDEO_MODE_PAL, VIDEO_MODE_NTSC, AV_OPT_FLAG_DECODING_PARAM, "standard" },
-    { "PAL",   "", 0, FF_OPT_TYPE_CONST, {.dbl = VIDEO_MODE_PAL},   0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
-    { "SECAM", "", 0, FF_OPT_TYPE_CONST, {.dbl = VIDEO_MODE_SECAM}, 0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
-    { "NTSC",  "", 0, FF_OPT_TYPE_CONST, {.dbl = VIDEO_MODE_NTSC},  0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
+    { "standard", "", offsetof(VideoData, standard), AV_OPT_TYPE_INT, {.dbl = VIDEO_MODE_NTSC}, VIDEO_MODE_PAL, VIDEO_MODE_NTSC, AV_OPT_FLAG_DECODING_PARAM, "standard" },
+    { "PAL",   "", 0, AV_OPT_TYPE_CONST, {.dbl = VIDEO_MODE_PAL},   0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
+    { "SECAM", "", 0, AV_OPT_TYPE_CONST, {.dbl = VIDEO_MODE_SECAM}, 0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
+    { "NTSC",  "", 0, AV_OPT_TYPE_CONST, {.dbl = VIDEO_MODE_NTSC},  0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
     { NULL },
 };
 
diff --git a/libavdevice/v4l2.c b/libavdevice/v4l2.c
index fef02b3ed7..e14e56c0f3 100644
--- a/libavdevice/v4l2.c
+++ b/libavdevice/v4l2.c
@@ -689,11 +689,11 @@ static int v4l2_read_close(AVFormatContext *s1)
 #define DEC AV_OPT_FLAG_DECODING_PARAM
 
 static const AVOption options[] = {
-    { "standard", "", OFFSET(standard), FF_OPT_TYPE_STRING, {.str = NULL }, 0, 0, AV_OPT_FLAG_DECODING_PARAM },
-    { "channel",  "", OFFSET(channel),  FF_OPT_TYPE_INT,    {.dbl = 0 }, 0, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
-    { "video_size", "A string describing frame size, such as 640x480 or hd720.", OFFSET(video_size), FF_OPT_TYPE_STRING, {.str = NULL}, 0, 0, DEC },
-    { "pixel_format", "", OFFSET(pixel_format), FF_OPT_TYPE_STRING, {.str = NULL}, 0, 0, DEC },
-    { "framerate", "", OFFSET(framerate), FF_OPT_TYPE_STRING, {.str = NULL}, 0, 0, DEC },
+    { "standard", "", OFFSET(standard), AV_OPT_TYPE_STRING, {.str = NULL }, 0, 0, AV_OPT_FLAG_DECODING_PARAM },
+    { "channel",  "", OFFSET(channel),  AV_OPT_TYPE_INT,    {.dbl = 0 }, 0, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
+    { "video_size", "A string describing frame size, such as 640x480 or hd720.", OFFSET(video_size), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, DEC },
+    { "pixel_format", "", OFFSET(pixel_format), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, DEC },
+    { "framerate", "", OFFSET(framerate), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, DEC },
     { NULL },
 };
 
diff --git a/libavdevice/vfwcap.c b/libavdevice/vfwcap.c
index 53e11f306f..480282ad8f 100644
--- a/libavdevice/vfwcap.c
+++ b/libavdevice/vfwcap.c
@@ -458,8 +458,8 @@ static int vfw_read_packet(AVFormatContext *s, AVPacket *pkt)
 #define OFFSET(x) offsetof(struct vfw_ctx, x)
 #define DEC AV_OPT_FLAG_DECODING_PARAM
 static const AVOption options[] = {
-    { "video_size", "A string describing frame size, such as 640x480 or hd720.", OFFSET(video_size), FF_OPT_TYPE_STRING, {.str = NULL}, 0, 0, DEC },
-    { "framerate", "", OFFSET(framerate), FF_OPT_TYPE_STRING, {.str = "ntsc"}, 0, 0, DEC },
+    { "video_size", "A string describing frame size, such as 640x480 or hd720.", OFFSET(video_size), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, DEC },
+    { "framerate", "", OFFSET(framerate), AV_OPT_TYPE_STRING, {.str = "ntsc"}, 0, 0, DEC },
     { NULL },
 };
 
diff --git a/libavdevice/x11grab.c b/libavdevice/x11grab.c
index 75d307543d..9125180ac0 100644
--- a/libavdevice/x11grab.c
+++ b/libavdevice/x11grab.c
@@ -581,13 +581,13 @@ x11grab_read_close(AVFormatContext *s1)
 #define OFFSET(x) offsetof(struct x11_grab, x)
 #define DEC AV_OPT_FLAG_DECODING_PARAM
 static const AVOption options[] = {
-    { "video_size", "A string describing frame size, such as 640x480 or hd720.", OFFSET(video_size), FF_OPT_TYPE_STRING, {.str = "vga"}, 0, 0, DEC },
-    { "framerate", "", OFFSET(framerate), FF_OPT_TYPE_STRING, {.str = "ntsc"}, 0, 0, DEC },
-    { "draw_mouse", "Draw the mouse pointer.", OFFSET(draw_mouse), FF_OPT_TYPE_INT, { 1 }, 0, 1, DEC },
+    { "video_size", "A string describing frame size, such as 640x480 or hd720.", OFFSET(video_size), AV_OPT_TYPE_STRING, {.str = "vga"}, 0, 0, DEC },
+    { "framerate", "", OFFSET(framerate), AV_OPT_TYPE_STRING, {.str = "ntsc"}, 0, 0, DEC },
+    { "draw_mouse", "Draw the mouse pointer.", OFFSET(draw_mouse), AV_OPT_TYPE_INT, { 1 }, 0, 1, DEC },
     { "follow_mouse", "Move the grabbing region when the mouse pointer reaches within specified amount of pixels to the edge of region.",
-      OFFSET(follow_mouse), FF_OPT_TYPE_INT, { 0 }, -1, INT_MAX, DEC, "follow_mouse" },
-    { "centered", "Keep the mouse pointer at the center of grabbing region when following.", 0, FF_OPT_TYPE_CONST, { -1 }, INT_MIN, INT_MAX, DEC, "follow_mouse" },
-    { "show_region", "Show the grabbing region.", OFFSET(show_region), FF_OPT_TYPE_INT, { 0 }, 0, 1, DEC },
+      OFFSET(follow_mouse), AV_OPT_TYPE_INT, { 0 }, -1, INT_MAX, DEC, "follow_mouse" },
+    { "centered", "Keep the mouse pointer at the center of grabbing region when following.", 0, AV_OPT_TYPE_CONST, { -1 }, INT_MIN, INT_MAX, DEC, "follow_mouse" },
+    { "show_region", "Show the grabbing region.", OFFSET(show_region), AV_OPT_TYPE_INT, { 0 }, 0, 1, DEC },
     { NULL },
 };