21 #define DEFAULT_RESULT_NAME "transforms.trf"
23 #include <vid.stab/libvidstab.h>
25 #include "libavutil/common.h"
26 #include "libavutil/opt.h"
27 #include "libavutil/imgutils.h"
44 #define OFFSET(x) offsetof(StabData, x)
45 #define OFFSETC(x) (offsetof(StabData, conf)+offsetof(VSMotionDetectConfig, x))
46 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
50 {
"shakiness",
"how shaky is the video and how quick is the camera?"
53 {
"stepsize",
"region around minimum is scanned with 1 pixel resolution",
OFFSETC(stepSize),
AV_OPT_TYPE_INT, {.i64 = 6}, 1, 32,
FLAGS},
56 {
"tripod",
"virtual tripod mode (if >0): motion is compared to a reference"
67 sd->
class = &vidstabdetect_class;
75 VSMotionDetect *
md = &(sd->
md);
82 vsMotionDetectionCleanup(md);
105 VSMotionDetect*
md = &(sd->
md);
111 av_log(ctx,
AV_LOG_ERROR,
"pixel-format error: wrong bits/per/pixel, please report a BUG");
126 sd->
conf.modName =
"vidstabdetect";
127 if (vsMotionDetectInit(md, &sd->
conf, &fi) != VS_OK) {
128 av_log(ctx,
AV_LOG_ERROR,
"initialization of Motion Detection failed, please report a BUG");
132 vsMotionDetectGetConfig(&sd->
conf, md);
141 sd->
f = fopen(sd->
result,
"w");
146 if (vsPrepareFile(md, sd->
f) != VS_OK) {
159 VSMotionDetect *
md = &(sd->
md);
160 LocalMotions localmotions;
169 for (plane = 0; plane < md->fi.planes; plane++) {
170 frame.data[plane] = in->
data[plane];
171 frame.linesize[plane] = in->
linesize[plane];
173 if (vsMotionDetection(md, &localmotions, &frame) != VS_OK) {
177 if (vsWriteToFile(md, sd->
f, &localmotions) != VS_OK) {
181 vs_vector_del(&localmotions);
206 .
name =
"vidstabdetect",
208 "pass 1 of 2 for stabilization "
209 "(see vidstabtransform for pass 2)."),
214 .
inputs = avfilter_vf_vidstabdetect_inputs,
215 .
outputs = avfilter_vf_vidstabdetect_outputs,
216 .priv_class = &vidstabdetect_class,
static av_cold int init(AVFilterContext *ctx)
This structure describes decoded (raw) audio or video data.
const char * name
Filter name.
AVFilter avfilter_vf_vidstabdetect
void * priv
private data for use by the filter
static const AVFilterPad outputs[]
int h
agreed upon image height
packed RGB 8:8:8, 24bpp, RGBRGB...
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
void av_log(void *avcl, int level, const char *fmt,...) av_printf_format(3
Send the specified message to the log if the level is less than or equal to the current av_log_level...
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
static int query_formats(AVFilterContext *ctx)
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
packed RGB 8:8:8, 24bpp, BGRBGR...
const char * name
Pad name.
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
static const AVOption vidstabdetect_options[]
static int config_input(AVFilterLink *inlink)
VSPixelFormat av_2_vs_pixel_format(AVFilterContext *ctx, enum AVPixelFormat pf)
convert AV's pixelformat to vid.stab pixelformat
#define AV_LOG_VERBOSE
Detailed information.
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
void vs_set_mem_and_log_functions(void)
sets the memory allocation function and logging constants to av versions
static const AVFilterPad avfilter_vf_vidstabdetect_outputs[]
A filter pad used for either input or output.
A link between two filters.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineSET_CONV_FUNC_GROUP(ofmt, ifmt) staticvoidset_generic_function(AudioConvert *ac){}voidff_audio_convert_free(AudioConvert **ac){return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, intsample_rate, intapply_map){AudioConvert *ac;intin_planar, out_planar;ac=av_mallocz(sizeof(*ac));returnNULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method!=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt)>2){ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc){av_free(ac);returnNULL;}returnac;}in_planar=av_sample_fmt_is_planar(in_fmt);out_planar=av_sample_fmt_is_planar(out_fmt);if(in_planar==out_planar){ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar?ac->channels:1;}elseif(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;elseac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);ff_audio_convert_init_arm(ac);ff_audio_convert_init_x86(ac);returnac;}intff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){intuse_generic=1;intlen=in->nb_samples;intp;if(ac->dc){av_dlog(ac->avr,"%dsamples-audio_convert:%sto%s(dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));returnff_convert_dither(ac-> in
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
AVPixelFormat
Pixel format.
int av_get_bits_per_pixel(const AVPixFmtDescriptor *pixdesc)
Return the number of bits per pixel used by the pixel format described by pixdesc.
int w
agreed upon image width
int av_frame_make_writable(AVFrame *frame)
Ensure that the frame data is writable, avoiding data copy if possible.
int format
agreed upon media format
Main libavfilter public API header.
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
AVFilterLink ** outputs
array of pointers to output links
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
#define AV_LOG_INFO
Standard information.
static const AVFilterPad avfilter_vf_vidstabdetect_inputs[]
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
#define DEFAULT_RESULT_NAME
Describe the class of an AVClass context structure.
static const AVFilterPad inputs[]
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
AVFilterContext * dst
dest filter
VSMotionDetectConfig conf
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
static av_cold void uninit(AVFilterContext *ctx)
#define AVFILTER_DEFINE_CLASS(fname)
packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)