avconv_filter.c File Reference

#include "avconv.h"
#include "libavfilter/avfilter.h"
#include "libavfilter/avfiltergraph.h"
#include "libavutil/avassert.h"
#include "libavutil/channel_layout.h"
#include "libavutil/pixdesc.h"
#include "libavutil/pixfmt.h"
#include "libavutil/samplefmt.h"

Go to the source code of this file.

Macros
#define	DEF_CHOOSE_FORMAT(type, var, supported_list, none, get_name, separator)
#define	DESCRIBE_FILTER_LINK(f, inout, in)

Functions
	DEF_CHOOSE_FORMAT (enum AVPixelFormat, pix_fmt, pix_fmts, AV_PIX_FMT_NONE, GET_PIX_FMT_NAME,":") DEF_CHOOSE_FORMAT(enum AVSampleFormat
	DEF_CHOOSE_FORMAT (int, sample_rate, supported_samplerates, DEF_CHOOSE_FORMAT(0, GET_SAMPLE_RATE_NAME, DEF_CHOOSE_FORMAT(", DEF_CHOOSE_FORMAT( ")
static void	init_input_filter (FilterGraph *fg, AVFilterInOut *in)
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)
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)
int	configure_filtergraph (FilterGraph *fg)
int	ist_in_filtergraph (FilterGraph *fg, InputStream *ist)

Variables
	sample_fmt
	sample_fmts
	AV_SAMPLE_FMT_NONE
	GET_SAMPLE_FMT_NAME

Macro Definition Documentation

#define DEF_CHOOSE_FORMAT	(		type,
			var,
			supported_list,
			none,
			get_name,
			separator
	)

Value:

static char *choose_ ## var ## s(OutputStream *ost)                            \
{                                                                              \
    if (ost->st->codec->var != none) {                                         \
        get_name(ost->st->codec->var);                                         \
        return av_strdup(name);                                                \
    } else if (ost->enc->supported_list) {                                     \
        const type *p;                                                         \
        AVIOContext *s = NULL;                                                 \
        uint8_t *ret;                                                          \
        int len;                                                               \
                                                                               \
        if (avio_open_dyn_buf(&s) < 0)                                         \
            exit(1);                                                           \
                                                                               \
        for (p = ost->enc->supported_list; *p != none; p++) {                  \
            get_name(*p);                                                      \
            avio_printf(s, "%s" separator, name);                              \
        }                                                                      \
        len = avio_close_dyn_buf(s, &ret);                                     \
        ret[len - 1] = 0;                                                      \
        return ret;                                                            \
    } else                                                                     \
        return NULL;                                                           \
}

Definition at line 34 of file avconv_filter.c.

#define DESCRIBE_FILTER_LINK	(		f,
			inout,
			in
	)

Value:

{                                                                  \
    AVFilterContext *ctx = inout->filter_ctx;                      \
    AVFilterPad *pads = in ? ctx->input_pads  : ctx->output_pads;  \
    int       nb_pads = in ? ctx->input_count : ctx->output_count; \
    AVIOContext *pb;                                               \
                                                                   \
    if (avio_open_dyn_buf(&pb) < 0)                                \
        exit(1);                                                   \
                                                                   \
    avio_printf(pb, "%s", ctx->filter->name);                      \
    if (nb_pads > 1)                                               \
        avio_printf(pb, ":%s", avfilter_pad_get_name(pads, inout->pad_idx));\
    avio_w8(pb, 0);                                                \
    avio_close_dyn_buf(pb, &f->name);                              \
}

Definition at line 319 of file avconv_filter.c.

Referenced by configure_input_filter(), and configure_output_filter().

Function Documentation

int configure_filtergraph

(

FilterGraph *

fg

)

Definition at line 491 of file avconv_filter.c.

Referenced by configure_complex_filters(), decode_audio(), decode_video(), and transcode_init().

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

static

Definition at line 397 of file avconv_filter.c.

Referenced by configure_input_filter().

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

static

Definition at line 478 of file avconv_filter.c.

Referenced by configure_filtergraph().

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

static

Definition at line 348 of file avconv_filter.c.

Referenced by configure_input_filter().

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

static

Definition at line 253 of file avconv_filter.c.

Referenced by configure_output_filter().

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

Definition at line 336 of file avconv_filter.c.

Referenced by configure_filtergraph(), and init_output_filter().

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

static

Definition at line 173 of file avconv_filter.c.

Referenced by configure_output_filter().

DEF_CHOOSE_FORMAT	(	enum	AVPixelFormat,
		pix_fmt	,
		pix_fmts	,
		AV_PIX_FMT_NONE	,
		GET_PIX_FMT_NAME	,
		":"
	)

DEF_CHOOSE_FORMAT	(	int	,
		sample_rate	,
		supported_samplerates	,
		DEF_CHOOSE_FORMAT(	0,
		GET_SAMPLE_RATE_NAME	,
		DEF_CHOOSE_FORMAT(	",
		DEF_CHOOSE_FORMAT(	"
	)

Definition at line 66 of file avconv_filter.c.

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

static

Definition at line 103 of file avconv_filter.c.

Referenced by configure_filtergraph().

int ist_in_filtergraph	(	FilterGraph *	fg,
		InputStream *	ist
	)

Definition at line 551 of file avconv_filter.c.

Referenced by decode_audio(), and decode_video().

Variable Documentation

AV_SAMPLE_FMT_NONE

Examples:

libavcodec/api-example.c.

Definition at line 63 of file avconv_filter.c.

Referenced by av_get_packed_sample_fmt(), av_get_planar_sample_fmt(), av_get_sample_fmt(), avcodec_decode_audio4(), avcodec_get_context_defaults3(), avcodec_open2(), avcodec_string(), avfilter_link(), avresample_open(), check_sample_fmt(), has_codec_parameters(), init(), init_audio(), new_audio_stream(), print_codec(), query_formats(), and update_sample_fmt().

GET_SAMPLE_FMT_NAME

Definition at line 63 of file avconv_filter.c.

Referenced by print_codec().

sample_fmt

Examples:

libavcodec/api-example.c.

Definition at line 63 of file avconv_filter.c.

Referenced by av_audio_fifo_alloc(), av_get_bytes_per_sample(), av_get_packed_sample_fmt(), av_get_planar_sample_fmt(), av_get_sample_fmt_name(), av_get_sample_fmt_string(), av_sample_fmt_is_planar(), avfilter_get_audio_buffer_ref_from_arrays(), ff_audio_data_alloc(), ff_audio_data_init(), ff_volume_init_x86(), and new_audio_stream().

sample_fmts

Definition at line 63 of file avconv_filter.c.

Referenced by configure_output_audio_filter(), new_audio_stream(), print_codec(), and query_formats().