143 const int start = (s->
nb_inputs * job ) / nb_jobs;
146 for (
int i = start;
i <
end;
i++) {
183 0, 0, outlink->
w, outlink->
h);
210 if (ctx->
inputs[i]->
w != width) {
234 if (ctx->
inputs[i]->
h != height) {
256 char *arg2, *p2, *saveptr2 =
NULL;
257 char *arg3, *p3, *saveptr3 =
NULL;
269 if (!(arg =
av_strtok(p,
"|", &saveptr)))
284 for (
int j = 0; j < 2; j++) {
285 if (!(arg2 =
av_strtok(p2,
"_", &saveptr2)))
290 while ((arg3 =
av_strtok(p3,
"+", &saveptr3))) {
292 if (sscanf(arg3,
"w%d", &size) == 1) {
293 if (size == i || size < 0 || size >= s->
nb_inputs)
300 }
else if (sscanf(arg3,
"h%d", &size) == 1) {
301 if (size == i || size < 0 || size >= s->
nb_inputs)
308 }
else if (sscanf(arg3,
"%d", &size) == 1) {
327 item->
y[0] = item->
y[3] = inh;
329 width =
FFMAX(width, inlink->
w + inw);
330 height =
FFMAX(height, inlink->
h + inh);
346 "Video inputs have different frame rates, output will be VFR\n");
393 #define OFFSET(x) offsetof(StackContext, x) 394 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM 397 {
"shortest",
"force termination when the shortest input terminates",
OFFSET(shortest),
AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, .flags =
FLAGS },
410 #if CONFIG_HSTACK_FILTER 412 #define hstack_options stack_options 419 .priv_class = &hstack_class,
430 #if CONFIG_VSTACK_FILTER 432 #define vstack_options stack_options 439 .priv_class = &vstack_class,
450 #if CONFIG_XSTACK_FILTER 452 static const AVOption xstack_options[] = {
455 {
"shortest",
"force termination when the shortest input terminates",
OFFSET(shortest),
AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, .flags =
FLAGS },
466 .priv_class = &xstack_class,
#define AV_PIX_FMT_FLAG_PAL
Pixel format has a palette in data[1], values are indexes in this palette.
AVFilterFormats * ff_draw_supported_pixel_formats(unsigned flags)
Return the list of pixel formats supported by the draw functions.
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
This structure describes decoded (raw) audio or video data.
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Main libavfilter public API header.
int h
agreed upon image height
#define AVFILTER_FLAG_DYNAMIC_INPUTS
The number of the filter inputs is not determined just by AVFilter.inputs.
enum AVMediaType type
AVFilterPad type.
int ff_framesync_configure(FFFrameSync *fs)
Configure a frame sync structure.
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
int64_t pts
Timestamp of the current event.
enum FFFrameSyncExtMode before
Extrapolation mode for timestamps before the first frame.
void * av_calloc(size_t nmemb, size_t size)
Non-inlined equivalent of av_mallocz_array().
const char * name
Pad name.
AVFilterContext * parent
Parent filter context.
AVFilterLink ** inputs
array of pointers to input links
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
static int query_formats(AVFilterContext *ctx)
#define fs(width, name, subs,...)
static av_cold int end(AVCodecContext *avctx)
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
static av_cold void uninit(AVFilterContext *ctx)
FFFrameSyncIn * in
Pointer to array of inputs.
#define AV_LOG_VERBOSE
Detailed information.
enum FFFrameSyncExtMode after
Extrapolation mode for timestamps after the last frame.
static int process_slice(AVFilterContext *ctx, void *arg, int job, int nb_jobs)
int av_parse_color(uint8_t *rgba_color, const char *color_string, int slen, void *log_ctx)
Put the RGBA values that correspond to color_string in rgba_color.
A filter pad used for either input or output.
int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq)
Rescale a 64-bit integer by 2 rational numbers.
A link between two filters.
AVFilterPad * input_pads
array of input pads
#define i(width, name, range_min, range_max)
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
static int config_output(AVFilterLink *outlink)
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
void ff_framesync_uninit(FFFrameSync *fs)
Free all memory currently allocated.
AVRational frame_rate
Frame rate of the stream on the link, or 1/0 if unknown or variable; if left to 0/0, will be automatically copied from the first input of the source filter if it exists.
static const AVOption stack_options[]
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
void * priv
private data for use by the filter
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
void ff_draw_color(FFDrawContext *draw, FFDrawColor *color, const uint8_t rgba[4])
Prepare a color.
AVRational time_base
Define the time base used by the PTS of the frames/samples which will pass through this link...
#define AV_PIX_FMT_FLAG_HWACCEL
Pixel format is an HW accelerated format.
AVRational time_base
Time base for the incoming frames.
int ff_framesync_activate(FFFrameSync *fs)
Examine the frames in the filter's input and try to produce output.
int(* on_event)(struct FFFrameSync *fs)
Callback called when a frame event is ready.
int w
agreed upon image width
char * av_asprintf(const char *fmt,...)
uint64_t flags
Combination of AV_PIX_FMT_FLAG_...
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
unsigned nb_inputs
number of input pads
const AVPixFmtDescriptor * desc
AVRational time_base
Time base for the output events.
AVFilterContext * src
source filter
void * opaque
Opaque pointer, not used by the API.
int format
agreed upon media format
char * av_strdup(const char *s)
Duplicate a string.
Extend the frame to infinity.
static av_cold int init(AVFilterContext *ctx)
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
int ff_framesync_init(FFFrameSync *fs, AVFilterContext *parent, unsigned nb_in)
Initialize a frame sync structure.
static AVRational av_make_q(int num, int den)
Create an AVRational.
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
AVRational sample_aspect_ratio
Sample aspect ratio for the video frame, 0/1 if unknown/unspecified.
#define AVERROR_BUG
Internal bug, also see AVERROR_BUG2.
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(const int16_t *) pi >> 8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(const int32_t *) pi >> 24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) #define SET_CONV_FUNC_GROUP(ofmt, ifmt) static void set_generic_function(AudioConvert *ac) { } void ff_audio_convert_free(AudioConvert **ac) { if(! *ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);} AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, int sample_rate, int apply_map) { AudioConvert *ac;int in_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) return NULL;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);return NULL;} return ac;} in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar) { ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar ? ac->channels :1;} else if(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;else ac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);return ac;} int ff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in) { int use_generic=1;int len=in->nb_samples;int p;if(ac->dc) { av_log(ac->avr, AV_LOG_TRACE, "%d samples - audio_convert: %s to %s (dithered)\", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));return ff_convert_dither(ac-> in
unsigned sync
Synchronization level: frames on input at the highest sync level will generate output frame events...
Describe the class of an AVClass context structure.
int av_image_fill_linesizes(int linesizes[4], enum AVPixelFormat pix_fmt, int width)
Fill plane linesizes for an image with pixel format pix_fmt and width width.
Rational number (pair of numerator and denominator).
const char * name
Filter name.
int ff_draw_init(FFDrawContext *draw, enum AVPixelFormat format, unsigned flags)
Init a draw context.
AVRational sample_aspect_ratio
agreed upon sample aspect ratio
#define AV_PIX_FMT_FLAG_BITSTREAM
All values of a component are bit-wise packed end to end.
AVFilterLink ** outputs
array of pointers to output links
static enum AVPixelFormat pix_fmts[]
#define flags(name, subs,...)
AVFilterInternal * internal
An opaque struct for libavfilter internal use.
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
char * av_strtok(char *s, const char *delim, char **saveptr)
Split the string into several tokens which can be accessed by successive calls to av_strtok()...
static int process_frame(FFFrameSync *fs)
avfilter_execute_func * execute
static const AVFilterPad outputs[]
Completely stop all streams with this one.
#define AVFILTER_DEFINE_CLASS(fname)
void ff_fill_rectangle(FFDrawContext *draw, FFDrawColor *color, uint8_t *dst[], int dst_linesize[], int dst_x, int dst_y, int w, int h)
Fill a rectangle with an uniform color.
static int activate(AVFilterContext *ctx)
void av_image_copy_plane(uint8_t *dst, int dst_linesize, const uint8_t *src, int src_linesize, int bytewidth, int height)
Copy image plane from src to dst.
int ff_framesync_get_frame(FFFrameSync *fs, unsigned in, AVFrame **rframe, unsigned get)
Get the current frame in an input.
const AVFilter * filter
the AVFilter of which this is an instance
#define AV_CEIL_RSHIFT(a, b)
static int ff_insert_inpad(AVFilterContext *f, unsigned index, AVFilterPad *p)
Insert a new input pad for the filter.