Libav
Macros | Functions | Variables
output.c File Reference

libavformat API example. More...

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
#include "libavutil/mathematics.h"
#include "libavformat/avformat.h"
#include "libswscale/swscale.h"

Go to the source code of this file.

Macros

#define STREAM_DURATION   5.0
#define STREAM_FRAME_RATE   25 /* 25 images/s */
#define STREAM_NB_FRAMES   ((int)(STREAM_DURATION * STREAM_FRAME_RATE))
#define STREAM_PIX_FMT   AV_PIX_FMT_YUV420P /* default pix_fmt */

Functions

static AVStreamadd_audio_stream (AVFormatContext *oc, enum AVCodecID codec_id)
static void open_audio (AVFormatContext *oc, AVStream *st)
static void get_audio_frame (int16_t *samples, int frame_size, int nb_channels)
static void write_audio_frame (AVFormatContext *oc, AVStream *st)
static void close_audio (AVFormatContext *oc, AVStream *st)
static AVStreamadd_video_stream (AVFormatContext *oc, enum AVCodecID codec_id)
static AVFramealloc_picture (enum AVPixelFormat pix_fmt, int width, int height)
static void open_video (AVFormatContext *oc, AVStream *st)
static void fill_yuv_image (AVFrame *pict, int frame_index, int width, int height)
static void write_video_frame (AVFormatContext *oc, AVStream *st)
static void close_video (AVFormatContext *oc, AVStream *st)
int main (int argc, char **argv)

Variables

static int sws_flags = SWS_BICUBIC
static float t
static float tincr
static float tincr2
static int16_t * samples
static int audio_input_frame_size
static AVFramepicture
static AVFrametmp_picture
static int frame_count

Detailed Description

libavformat API example.

Definition in file output.c.

Macro Definition Documentation

#define STREAM_DURATION   5.0

Definition at line 42 of file output.c.

Referenced by main().

#define STREAM_FRAME_RATE   25 /* 25 images/s */

Definition at line 43 of file output.c.

Referenced by add_video_stream().

#define STREAM_NB_FRAMES   ((int)(STREAM_DURATION * STREAM_FRAME_RATE))

Definition at line 44 of file output.c.

Referenced by write_video_frame().

#define STREAM_PIX_FMT   AV_PIX_FMT_YUV420P /* default pix_fmt */

Definition at line 45 of file output.c.

Referenced by add_video_stream().

Function Documentation

static AVStream* add_audio_stream ( AVFormatContext oc,
enum AVCodecID  codec_id 
)
static

Definition at line 59 of file output.c.

Referenced by main().

static void open_audio ( AVFormatContext oc,
AVStream st 
)
static

Definition at line 93 of file output.c.

Referenced by main().

static void get_audio_frame ( int16_t *  samples,
int  frame_size,
int  nb_channels 
)
static

Definition at line 122 of file output.c.

Referenced by write_audio_frame().

static void write_audio_frame ( AVFormatContext oc,
AVStream st 
)
static

Definition at line 137 of file output.c.

Referenced by main().

static void close_audio ( AVFormatContext oc,
AVStream st 
)
static

Definition at line 169 of file output.c.

Referenced by main().

static AVStream* add_video_stream ( AVFormatContext oc,
enum AVCodecID  codec_id 
)
static

Definition at line 183 of file output.c.

Referenced by main().

static AVFrame* alloc_picture ( enum AVPixelFormat  pix_fmt,
int  width,
int  height 
)
static

Definition at line 234 of file output.c.

Referenced by open_video().

static void open_video ( AVFormatContext oc,
AVStream st 
)
static

Definition at line 254 of file output.c.

Referenced by main().

static void fill_yuv_image ( AVFrame pict,
int  frame_index,
int  width,
int  height 
)
static

Definition at line 287 of file output.c.

Referenced by write_video_frame().

static void write_video_frame ( AVFormatContext oc,
AVStream st 
)
static

Definition at line 308 of file output.c.

Referenced by main().

static void close_video ( AVFormatContext oc,
AVStream st 
)
static

Definition at line 388 of file output.c.

Referenced by main().

int main ( int  argc,
char **  argv 
)

Definition at line 402 of file output.c.

Variable Documentation

int sws_flags = SWS_BICUBIC
static

Definition at line 47 of file output.c.

Referenced by write_video_frame().

float t
static

Definition at line 52 of file output.c.

Referenced by adpcm_compress_trellis(), alaw2linear(), amf_tag_contents(), asf_write_markers(), assert_avoptions(), audio_encode_example(), av_aes_init(), av_dict_copy(), av_gettime(), av_opt_set_dict(), av_parse_time(), av_timegm(), av_tree_insert(), avi_write_header(), bessel(), block_cmp(), bmp_decode_frame(), body(), butterflies_float_c(), crazytime_to_iso8601(), dca_downmix(), decode_555(), decode_band(), decode_block(), decode_cce(), decode_channel(), decode_dct(), decode_end(), decode_frame(), decode_group3_1d_line(), decode_group3_2d_line(), decode_run_2bit(), decode_thread(), dv_init_mux(), dwt_decode97_float(), dwt_decode97_int(), encode_block(), encode_picture_ls(), estimate_sid_gain(), ff_amf_tag_size(), ff_atrac3p_ipqf(), ff_id3v2_write_metadata(), ff_jpeg2000_tag_tree_init(), ff_jpegls_decode_picture(), ff_mjpeg_find_marker(), ff_riff_write_info(), ff_vorbis_comment(), ff_vp6_filter_diag4_c(), ff_yuv2rgb_get_func_ptr(), filetime_to_iso8601(), filter_codec_opts(), flv_read_packet(), generate_noise(), get_audio_frame(), get_chroma_qp(), get_date_tag(), get_dimension(), get_generic_seed(), get_scale_idx(), gxf_write_umf_material_description(), handle_invoke_status(), handle_ping(), hpel_motion_search(), idct32(), idx_to_quant(), ir2_decode_plane(), ir2_decode_plane_inter(), ivi_free_buffers(), mask_edges(), merge_date(), mid_pred(), mkv_write_attachments(), mkv_write_chapters(), mkv_write_tag(), mov_create_chapter_track(), mov_read_mac_string(), mov_write_3gp_udta_tag(), mov_write_chpl_tag(), mov_write_header(), mov_write_string_metadata(), mov_write_trkn_tag(), mpc7_decode_frame(), mpc8_decode_frame(), mpc8_parse_seektable(), mss4_decode_dct(), mxf_compute_index_tables(), mxf_read_packet(), mxf_read_packet_old(), mxf_read_seek(), mxf_set_current_edit_unit(), mxf_write_header(), nsv_parse_NSVs_header(), ogm_dshow_header(), oledate_to_iso8601(), open_audio(), open_input_file(), parse_forced_key_frames(), pcm_dvd_decode_samples(), pow_m1_4(), print_report(), qpel_motion_search(), quantize_and_encode_band_cost_template(), read_block_types(), read_colors(), read_dct_coeffs(), read_motion_values(), read_patterns(), read_runs(), read_time(), read_tree(), revert_channel_correlation(), rv34_decode_cbp(), rv34_decode_inter_mb_header(), rv34_decode_intra_mb_header(), rv40_strong_loop_filter(), rv40_weak_loop_filter(), sad_hpel_motion_search(), scalarproduct_int16_altivec(), search_for_quantizers_anmr(), search_for_quantizers_faac(), sha1_transform(), sipr_decode_lp(), smacker_decode_bigtree(), smacker_read_packet(), smjpeg_write_header(), stream_component_open(), tak_parse(), tm2_low_chroma(), tqi_decode_init(), truespeech_apply_twopoint_filter(), truespeech_place_pulses(), truespeech_synth(), ulaw2linear(), ulti_grad(), unix_to_file_time(), vb_decode_framedata(), vorbis_parse_setup_hdr_codebooks(), vp56_deblock_filter(), vp5_adjust(), wavpack_decode_block(), write_chapter(), write_globalinfo(), write_tags(), ws_snd_decode_frame(), wv_get_value(), wv_unpack_mono(), wv_unpack_stereo(), x8_ac_compensation(), x8_get_ac_rlf(), x8_loop_filter(), and xa_decode().

float tincr
static

Definition at line 52 of file output.c.

Referenced by audio_encode_example(), get_audio_frame(), and open_audio().

float tincr2
static

Definition at line 52 of file output.c.

Referenced by get_audio_frame(), and open_audio().

int16_t* samples
static
int audio_input_frame_size
static

Definition at line 54 of file output.c.

Referenced by open_audio(), and write_audio_frame().

AVFrame* picture
static
AVFrame * tmp_picture
static

Definition at line 179 of file output.c.

int frame_count
static

Definition at line 180 of file output.c.

Referenced by rl2_read_header(), write_video_frame(), and yop_read_seek().