#include "libavutil/audioconvert.h"
#include "libavutil/avstring.h"
#include "libavutil/bprint.h"
#include "libavutil/opt.h"
#include "libswresample/swresample.h"
#include "avfilter.h"
#include "audio.h"
#include "bufferqueue.h"
#include "internal.h"
Go to the source code of this file.
Data Structures | |
struct | AMergeContext |
struct | AMergeContext::AMergeContext::amerge_input |
Defines | |
#define | OFFSET(x) offsetof(AMergeContext, x) |
#define | FLAGS AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM |
Functions | |
AVFILTER_DEFINE_CLASS (amerge) | |
static av_cold void | uninit (AVFilterContext *ctx) |
static int | query_formats (AVFilterContext *ctx) |
static int | config_output (AVFilterLink *outlink) |
static int | request_frame (AVFilterLink *outlink) |
static void | copy_samples (int nb_inputs, struct amerge_input in[], int *route, uint8_t *ins[], uint8_t **outs, int ns, int bps) |
Copy samples from several input streams to one output stream. | |
static int | filter_samples (AVFilterLink *inlink, AVFilterBufferRef *insamples) |
static av_cold int | init (AVFilterContext *ctx, const char *args) |
Variables | |
static const AVOption | amerge_options [] |
AVFilter | avfilter_af_amerge |
Definition in file af_amerge.c.
#define FLAGS AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM |
Definition at line 50 of file af_amerge.c.
#define OFFSET | ( | x | ) | offsetof(AMergeContext, x) |
Definition at line 49 of file af_amerge.c.
AVFILTER_DEFINE_CLASS | ( | amerge | ) |
static int config_output | ( | AVFilterLink * | outlink | ) | [static] |
Definition at line 138 of file af_amerge.c.
static void copy_samples | ( | int | nb_inputs, | |
struct amerge_input | in[], | |||
int * | route, | |||
uint8_t * | ins[], | |||
uint8_t ** | outs, | |||
int | ns, | |||
int | bps | |||
) | [inline, static] |
Copy samples from several input streams to one output stream.
nb_inputs | number of inputs | |
in | inputs; used only for the nb_ch field; | |
route | routing values; input channel i goes to output channel route[i]; i < in[0].nb_ch are the channels from the first output; i >= in[0].nb_ch are the channels from the second output | |
ins | pointer to the samples of each inputs, in packed format; will be left at the end of the copied samples | |
outs | pointer to the samples of the output, in packet format; must point to a buffer big enough; will be left at the end of the copied samples | |
ns | number of samples to copy | |
bps | bytes per sample |
Definition at line 199 of file af_amerge.c.
static int filter_samples | ( | AVFilterLink * | inlink, | |
AVFilterBufferRef * | insamples | |||
) | [static] |
Definition at line 220 of file af_amerge.c.
static av_cold int init | ( | AVFilterContext * | ctx, | |
const char * | args | |||
) | [static] |
Definition at line 296 of file af_amerge.c.
static int query_formats | ( | AVFilterContext * | ctx | ) | [static] |
Definition at line 72 of file af_amerge.c.
static int request_frame | ( | AVFilterLink * | outlink | ) | [static] |
static av_cold void uninit | ( | AVFilterContext * | ctx | ) | [static] |
Definition at line 60 of file af_amerge.c.
const AVOption amerge_options[] [static] |
Initial value:
{ { "inputs", "specify the number of inputs", OFFSET(nb_inputs), AV_OPT_TYPE_INT, { .i64 = 2 }, 2, SWR_CH_MAX, FLAGS }, {0} }
Definition at line 52 of file af_amerge.c.
Initial value:
{ .name = "amerge", .description = NULL_IF_CONFIG_SMALL("Merge two audio streams into " "a single multi-channel stream."), .priv_size = sizeof(AMergeContext), .init = init, .uninit = uninit, .query_formats = query_formats, .inputs = (const AVFilterPad[]) { { .name = NULL } }, .outputs = (const AVFilterPad[]) { { .name = "default", .type = AVMEDIA_TYPE_AUDIO, .config_props = config_output, .request_frame = request_frame, }, { .name = NULL } }, .priv_class = &amerge_class, }
Definition at line 326 of file af_amerge.c.