FFmpegKit iOS / macOS / tvOS API  4.4
Macros | Functions | Variables
fftools_ffmpeg_filter.c File Reference

Go to the source code of this file.

Macros

#define DEF_CHOOSE_FORMAT(suffix, type, var, supported_list, none, get_name)
 
#define AUTO_INSERT_FILTER(opt_name, filter_name, arg)
 
#define AUTO_INSERT_FILTER_INPUT(opt_name, filter_name, arg)
 

Functions

static enum AVPixelFormat * get_compliance_unofficial_pix_fmts (enum AVCodecID codec_id, const enum AVPixelFormat default_formats[])
 
enum AVPixelFormat choose_pixel_fmt (AVStream *st, AVCodecContext *enc_ctx, const AVCodec *codec, enum AVPixelFormat target)
 
void choose_sample_fmt (AVStream *st, const AVCodec *codec)
 
static char * choose_pix_fmts (OutputFilter *ofilter)
 
 DEF_CHOOSE_FORMAT (sample_fmts, enum AVSampleFormat, format, formats, AV_SAMPLE_FMT_NONE, GET_SAMPLE_FMT_NAME) DEF_CHOOSE_FORMAT(sample_rates
 
GET_SAMPLE_RATE_NAME DEF_CHOOSE_FORMAT (channel_layouts, uint64_t, channel_layout, channel_layouts, 0, GET_CH_LAYOUT_NAME)
 
static char * describe_filter_link (FilterGraph *fg, AVFilterInOut *inout, int in)
 
static void init_input_filter (FilterGraph *fg, AVFilterInOut *in)
 
int init_complex_filtergraph (FilterGraph *fg)
 
static int insert_trim (int64_t start_time, int64_t duration, AVFilterContext **last_filter, int *pad_idx, const char *filter_name)
 
static int insert_filter (AVFilterContext **last_filter, int *pad_idx, const char *filter_name, const char *args)
 
static int configure_output_video_filter (FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
 
static int configure_output_audio_filter (FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
 
int configure_output_filter (FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
 
void check_filter_outputs (void)
 
static int sub2video_prepare (InputStream *ist, InputFilter *ifilter)
 
static int configure_input_video_filter (FilterGraph *fg, InputFilter *ifilter, AVFilterInOut *in)
 
static int configure_input_audio_filter (FilterGraph *fg, InputFilter *ifilter, AVFilterInOut *in)
 
static int configure_input_filter (FilterGraph *fg, InputFilter *ifilter, AVFilterInOut *in)
 
static void cleanup_filtergraph (FilterGraph *fg)
 
int configure_filtergraph (FilterGraph *fg)
 
int ifilter_parameters_from_frame (InputFilter *ifilter, const AVFrame *frame)
 
int filtergraph_is_simple (FilterGraph *fg)
 

Variables

 int
 
 sample_rate
 
 sample_rates
 

Macro Definition Documentation

◆ AUTO_INSERT_FILTER

#define AUTO_INSERT_FILTER (   opt_name,
  filter_name,
  arg 
)
Value:
do { \
AVFilterContext *filt_ctx; \
\
av_log(NULL, AV_LOG_INFO, opt_name " is forwarded to lavfi " \
"similarly to -af " filter_name "=%s.\n", arg); \
\
ret = avfilter_graph_create_filter(&filt_ctx, \
avfilter_get_by_name(filter_name), \
filter_name, arg, NULL, fg->graph); \
if (ret < 0) \
return ret; \
\
ret = avfilter_link(last_filter, pad_idx, filt_ctx, 0); \
if (ret < 0) \
return ret; \
\
last_filter = filt_ctx; \
pad_idx = 0; \
} while (0)

◆ AUTO_INSERT_FILTER_INPUT

#define AUTO_INSERT_FILTER_INPUT (   opt_name,
  filter_name,
  arg 
)
Value:
do { \
AVFilterContext *filt_ctx; \
\
av_log(NULL, AV_LOG_INFO, opt_name " is forwarded to lavfi " \
"similarly to -af " filter_name "=%s.\n", arg); \
\
snprintf(name, sizeof(name), "graph_%d_%s_in_%d_%d", \
fg->index, filter_name, ist->file_index, ist->st->index); \
ret = avfilter_graph_create_filter(&filt_ctx, \
avfilter_get_by_name(filter_name), \
name, arg, NULL, fg->graph); \
if (ret < 0) \
return ret; \
\
ret = avfilter_link(last_filter, 0, filt_ctx, 0); \
if (ret < 0) \
return ret; \
\
last_filter = filt_ctx; \
} while (0)

◆ DEF_CHOOSE_FORMAT

#define DEF_CHOOSE_FORMAT (   suffix,
  type,
  var,
  supported_list,
  none,
  get_name 
)
Value:
static char *choose_ ## suffix (OutputFilter *ofilter) \
{ \
if (ofilter->var != none) { \
get_name(ofilter->var); \
return av_strdup(name); \
} else if (ofilter->supported_list) { \
const type *p; \
AVIOContext *s = NULL; \
uint8_t *ret; \
int len; \
\
if (avio_open_dyn_buf(&s) < 0) \
exit_program(1); \
\
for (p = ofilter->supported_list; *p != none; p++) { \
get_name(*p); \
avio_printf(s, "%s|", name); \
} \
len = avio_close_dyn_buf(s, &ret); \
ret[len - 1] = 0; \
return ret; \
} else \
return NULL; \
}

Definition at line 168 of file fftools_ffmpeg_filter.c.

Function Documentation

◆ check_filter_outputs()

void check_filter_outputs ( void  )

Definition at line 692 of file fftools_ffmpeg_filter.c.

◆ choose_pix_fmts()

static char* choose_pix_fmts ( OutputFilter *  ofilter)
static

Definition at line 124 of file fftools_ffmpeg_filter.c.

◆ choose_pixel_fmt()

enum AVPixelFormat choose_pixel_fmt ( AVStream *  st,
AVCodecContext *  enc_ctx,
const AVCodec *  codec,
enum AVPixelFormat  target 
)

Definition at line 50 of file fftools_ffmpeg_filter.c.

◆ choose_sample_fmt()

void choose_sample_fmt ( AVStream *  st,
const AVCodec *  codec 
)

Definition at line 101 of file fftools_ffmpeg_filter.c.

◆ cleanup_filtergraph()

static void cleanup_filtergraph ( FilterGraph *  fg)
static

Definition at line 1002 of file fftools_ffmpeg_filter.c.

◆ configure_filtergraph()

int configure_filtergraph ( FilterGraph *  fg)

Definition at line 1012 of file fftools_ffmpeg_filter.c.

◆ configure_input_audio_filter()

static int configure_input_audio_filter ( FilterGraph *  fg,
InputFilter *  ifilter,
AVFilterInOut *  in 
)
static

Definition at line 876 of file fftools_ffmpeg_filter.c.

◆ configure_input_filter()

static int configure_input_filter ( FilterGraph *  fg,
InputFilter *  ifilter,
AVFilterInOut *  in 
)
static

Definition at line 986 of file fftools_ffmpeg_filter.c.

◆ configure_input_video_filter()

static int configure_input_video_filter ( FilterGraph *  fg,
InputFilter *  ifilter,
AVFilterInOut *  in 
)
static

Definition at line 754 of file fftools_ffmpeg_filter.c.

◆ configure_output_audio_filter()

static int configure_output_audio_filter ( FilterGraph *  fg,
OutputFilter *  ofilter,
AVFilterInOut *  out 
)
static

Definition at line 557 of file fftools_ffmpeg_filter.c.

◆ configure_output_filter()

int configure_output_filter ( FilterGraph *  fg,
OutputFilter *  ofilter,
AVFilterInOut *  out 
)

Definition at line 678 of file fftools_ffmpeg_filter.c.

◆ configure_output_video_filter()

static int configure_output_video_filter ( FilterGraph *  fg,
OutputFilter *  ofilter,
AVFilterInOut *  out 
)
static

Definition at line 463 of file fftools_ffmpeg_filter.c.

◆ DEF_CHOOSE_FORMAT() [1/2]

GET_SAMPLE_RATE_NAME DEF_CHOOSE_FORMAT ( channel_layouts  ,
uint64_t  ,
channel_layout  ,
channel_layouts  ,
0  ,
GET_CH_LAYOUT_NAME   
)

Definition at line 203 of file fftools_ffmpeg_filter.c.

◆ DEF_CHOOSE_FORMAT() [2/2]

DEF_CHOOSE_FORMAT ( sample_fmts  ,
enum  AVSampleFormat,
format  ,
formats  ,
AV_SAMPLE_FMT_NONE  ,
GET_SAMPLE_FMT_NAME   
)

◆ describe_filter_link()

static char* describe_filter_link ( FilterGraph *  fg,
AVFilterInOut *  inout,
int  in 
)
static

Definition at line 243 of file fftools_ffmpeg_filter.c.

◆ filtergraph_is_simple()

int filtergraph_is_simple ( FilterGraph *  fg)

Definition at line 1209 of file fftools_ffmpeg_filter.c.

◆ get_compliance_unofficial_pix_fmts()

static enum AVPixelFormat* get_compliance_unofficial_pix_fmts ( enum AVCodecID  codec_id,
const enum AVPixelFormat  default_formats[] 
)
static

Definition at line 50 of file fftools_ffmpeg_filter.c.

◆ ifilter_parameters_from_frame()

int ifilter_parameters_from_frame ( InputFilter *  ifilter,
const AVFrame *  frame 
)

Definition at line 1186 of file fftools_ffmpeg_filter.c.

◆ init_complex_filtergraph()

int init_complex_filtergraph ( FilterGraph *  fg)

Definition at line 349 of file fftools_ffmpeg_filter.c.

◆ init_input_filter()

static void init_input_filter ( FilterGraph *  fg,
AVFilterInOut *  in 
)
static

Definition at line 262 of file fftools_ffmpeg_filter.c.

◆ insert_filter()

static int insert_filter ( AVFilterContext **  last_filter,
int *  pad_idx,
const char *  filter_name,
const char *  args 
)
static

Definition at line 441 of file fftools_ffmpeg_filter.c.

◆ insert_trim()

static int insert_trim ( int64_t  start_time,
int64_t  duration,
AVFilterContext **  last_filter,
int *  pad_idx,
const char *  filter_name 
)
static

Definition at line 390 of file fftools_ffmpeg_filter.c.

◆ sub2video_prepare()

static int sub2video_prepare ( InputStream *  ist,
InputFilter *  ifilter 
)
static

Definition at line 707 of file fftools_ffmpeg_filter.c.

Variable Documentation

◆ int

int

Definition at line 200 of file fftools_ffmpeg_filter.c.

◆ sample_rate

sample_rate

Definition at line 200 of file fftools_ffmpeg_filter.c.

◆ sample_rates

sample_rates

Definition at line 200 of file fftools_ffmpeg_filter.c.

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