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vf_codecview: added new options 

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
dsmudhar 2016-06-09 18:42:33 +05:30 committed by Michael Niedermayer
parent 2234566cfb
commit 7a2b9dd060
2 changed files with 80 additions and 13 deletions
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38
doc/filters.texi
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@ -4790,16 +4790,48 @@ backward predicted MVs of B-frames
@end table
@item qp
Display quantization parameters using the chroma planes
Display quantization parameters using the chroma planes.
@item mv_type, mvt
Set motion vectors type to visualize. Includes MVs from all frames unless specified by @var{frame_type} option.
Available flags for @var{mv_type} are:
@table @samp
@item fp
forward predicted MVs
@item bp
backward predicted MVs
@end table
@item frame_type, ft
Set frame type to visualize motion vectors of.
Available flags for @var{frame_type} are:
@table @samp
@item if
intra-coded frames (I-frames)
@item pf
predicted frames (P-frames)
@item bf
bi-directionally predicted frames (B-frames)
@end table
@end table
@subsection Examples
@itemize
@item
Visualizes multi-directionals MVs from P and B-Frames using @command{ffplay}:
Visualize forward predicted MVs of all frames using @command{ffplay}:
@example
ffplay -flags2 +export_mvs input.mpg -vf codecview=mv=pf+bf+bb
ffplay -flags2 +export_mvs input.mp4 -vf codecview=mv_type=fp
@end example
@item
Visualize multi-directionals MVs of P and B-Frames using @command{ffplay}:
@example
ffplay -flags2 +export_mvs input.mp4 -vf codecview=mv=pf+bf+bb
@end example
@end itemize

55
libavfilter/vf_codecview.c
View File

@ -38,22 +38,40 @@
#define MV_P_FOR (1<<0)
#define MV_B_FOR (1<<1)
#define MV_B_BACK (1<<2)
#define MV_TYPE_FOR (1<<0)
#define MV_TYPE_BACK (1<<1)
#define FRAME_TYPE_I (1<<0)
#define FRAME_TYPE_P (1<<1)
#define FRAME_TYPE_B (1<<2)
typedef struct {
const AVClass *class;
unsigned mv;
unsigned frame_type;
unsigned mv_type;
int hsub, vsub;
int qp;
} CodecViewContext;
#define OFFSET(x) offsetof(CodecViewContext, x)
#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
#define CONST(name, help, val, unit) { name, help, 0, AV_OPT_TYPE_CONST, {.i64=val}, 0, 0, FLAGS, unit }
static const AVOption codecview_options[] = {
{ "mv", "set motion vectors to visualize", OFFSET(mv), AV_OPT_TYPE_FLAGS, {.i64=0}, 0, INT_MAX, FLAGS, "mv" },
{"pf", "forward predicted MVs of P-frames", 0, AV_OPT_TYPE_CONST, {.i64 = MV_P_FOR }, INT_MIN, INT_MAX, FLAGS, "mv"},
{"bf", "forward predicted MVs of B-frames", 0, AV_OPT_TYPE_CONST, {.i64 = MV_B_FOR }, INT_MIN, INT_MAX, FLAGS, "mv"},
{"bb", "backward predicted MVs of B-frames", 0, AV_OPT_TYPE_CONST, {.i64 = MV_B_BACK }, INT_MIN, INT_MAX, FLAGS, "mv"},
CONST("pf", "forward predicted MVs of P-frames", MV_P_FOR, "mv"),
CONST("bf", "forward predicted MVs of B-frames", MV_B_FOR, "mv"),
CONST("bb", "backward predicted MVs of B-frames", MV_B_BACK, "mv"),
{ "qp", NULL, OFFSET(qp), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, .flags = FLAGS },
{ "mv_type", "set motion vectors type", OFFSET(mv_type), AV_OPT_TYPE_FLAGS, {.i64=0}, 0, INT_MAX, FLAGS, "mv_type" },
{ "mvt", "set motion vectors type", OFFSET(mv_type), AV_OPT_TYPE_FLAGS, {.i64=0}, 0, INT_MAX, FLAGS, "mv_type" },
CONST("fp", "forward predicted MVs", MV_TYPE_FOR, "mv_type"),
CONST("bp", "backward predicted MVs", MV_TYPE_BACK, "mv_type"),
{ "frame_type", "set frame types to visualize motion vectors of", OFFSET(frame_type), AV_OPT_TYPE_FLAGS, {.i64=0}, 0, INT_MAX, FLAGS, "frame_type" },
{ "ft", "set frame types to visualize motion vectors of", OFFSET(frame_type), AV_OPT_TYPE_FLAGS, {.i64=0}, 0, INT_MAX, FLAGS, "frame_type" },
CONST("if", "I-frames", FRAME_TYPE_I, "frame_type"),
CONST("pf", "P-frames", FRAME_TYPE_P, "frame_type"),
CONST("bf", "B-frames", FRAME_TYPE_B, "frame_type"),
{ NULL }
};
@ -224,20 +242,37 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
}
}
if (s->mv) {
if (s->mv || s->mv_type) {
AVFrameSideData *sd = av_frame_get_side_data(frame, AV_FRAME_DATA_MOTION_VECTORS);
if (sd) {
int i;
const AVMotionVector *mvs = (const AVMotionVector *)sd->data;
const int is_iframe = (s->frame_type & FRAME_TYPE_I) && frame->pict_type == AV_PICTURE_TYPE_I;
const int is_pframe = (s->frame_type & FRAME_TYPE_P) && frame->pict_type == AV_PICTURE_TYPE_P;
const int is_bframe = (s->frame_type & FRAME_TYPE_B) && frame->pict_type == AV_PICTURE_TYPE_B;
for (i = 0; i < sd->size / sizeof(*mvs); i++) {
const AVMotionVector *mv = &mvs[i];
const int direction = mv->source > 0;
if ((direction == 0 && (s->mv & MV_P_FOR) && frame->pict_type == AV_PICTURE_TYPE_P) ||
(direction == 0 && (s->mv & MV_B_FOR) && frame->pict_type == AV_PICTURE_TYPE_B) ||
(direction == 1 && (s->mv & MV_B_BACK) && frame->pict_type == AV_PICTURE_TYPE_B))
draw_arrow(frame->data[0], mv->dst_x, mv->dst_y, mv->src_x, mv->src_y,
frame->width, frame->height, frame->linesize[0],
100, 0, mv->source > 0);
if (s->mv_type) {
const int is_fp = direction == 0 && (s->mv_type & MV_TYPE_FOR);
const int is_bp = direction == 1 && (s->mv_type & MV_TYPE_BACK);
if ((!s->frame_type && (is_fp || is_bp)) ||
is_iframe && is_fp || is_iframe && is_bp ||
is_pframe && is_fp ||
is_bframe && is_fp || is_bframe && is_bp)
draw_arrow(frame->data[0], mv->dst_x, mv->dst_y, mv->src_x, mv->src_y,
frame->width, frame->height, frame->linesize[0],
100, 0, direction);
} else if (s->mv)
if ((direction == 0 && (s->mv & MV_P_FOR) && frame->pict_type == AV_PICTURE_TYPE_P) ||
(direction == 0 && (s->mv & MV_B_FOR) && frame->pict_type == AV_PICTURE_TYPE_B) ||
(direction == 1 && (s->mv & MV_B_BACK) && frame->pict_type == AV_PICTURE_TYPE_B))
draw_arrow(frame->data[0], mv->dst_x, mv->dst_y, mv->src_x, mv->src_y,
frame->width, frame->height, frame->linesize[0],
100, 0, direction);
}
}
}