FFmpeg: doc/examples/vaapi_transcode.c File Reference

FFmpeg

#include <stdio.h>
#include <errno.h>
#include <libavutil/hwcontext.h>
#include <libavcodec/avcodec.h>
#include <libavformat/avformat.h>

Go to the source code of this file.

Functions
static enum AVPixelFormat	get_vaapi_format (AVCodecContext ctx, const enum AVPixelFormat pix_fmts)

static int	open_input_file (const char *filename)

static int	encode_write (AVFrame *frame)

static int	dec_enc (AVPacket pkt, AVCodec enc_codec)

int	main (int argc, char **argv)

Variables
static AVFormatContext *	ifmt_ctx = NULL

static AVFormatContext *	ofmt_ctx = NULL

static AVBufferRef *	hw_device_ctx = NULL

static AVCodecContext *	decoder_ctx = NULL

static AVCodecContext *	encoder_ctx = NULL

static int	video_stream = -1

static AVStream *	ost

static int	initialized = 0

Detailed Description

Intel VAAPI-accelerated transcoding example.

Definition in file vaapi_transcode.c.

Function Documentation

◆ get_vaapi_format()

static enum AVPixelFormat get_vaapi_format	(	AVCodecContext *	ctx,
		const enum AVPixelFormat *	pix_fmts
	)

static

Examples: vaapi_transcode.c.

Definition at line 48 of file vaapi_transcode.c.

Referenced by open_input_file().

◆ open_input_file()

static int open_input_file ( const char * filename )

static

Examples: vaapi_transcode.c.

Definition at line 62 of file vaapi_transcode.c.

Referenced by main().

◆ encode_write()

static int encode_write ( AVFrame * frame )

static

Examples: vaapi_transcode.c.

Definition at line 112 of file vaapi_transcode.c.

Referenced by dec_enc(), and main().

◆ dec_enc()

static int dec_enc	(	AVPacket *	pkt,
		AVCodec *	enc_codec
	)

static

Examples: vaapi_transcode.c.

Definition at line 148 of file vaapi_transcode.c.

Referenced by main().

◆ main()

int main	(	int	argc,
		char **	argv
	)

Examples: vaapi_transcode.c.

Definition at line 230 of file vaapi_transcode.c.

Variable Documentation

◆ ifmt_ctx

AVFormatContext* ifmt_ctx = NULL

static

Examples: vaapi_transcode.c.

Definition at line 41 of file vaapi_transcode.c.

Referenced by encode_write(), main(), and open_input_file().

◆ ofmt_ctx

AVFormatContext * ofmt_ctx = NULL

static

Examples: vaapi_transcode.c.

Definition at line 41 of file vaapi_transcode.c.

Referenced by dec_enc(), encode_write(), and main().

◆ hw_device_ctx

AVBufferRef* hw_device_ctx = NULL

static

Examples: vaapi_transcode.c.

Definition at line 42 of file vaapi_transcode.c.

Referenced by main(), and open_input_file().

◆ decoder_ctx

AVCodecContext* decoder_ctx = NULL

static

Examples: hw_decode.c, qsvdec.c, and vaapi_transcode.c.

Definition at line 43 of file vaapi_transcode.c.

Referenced by dec_enc(), decode_packet(), main(), and open_input_file().

◆ encoder_ctx

AVCodecContext * encoder_ctx = NULL

static

Examples: vaapi_transcode.c.

Definition at line 43 of file vaapi_transcode.c.

Referenced by dec_enc(), encode_write(), and main().

◆ video_stream

int video_stream = -1

static

Examples: vaapi_transcode.c.

Definition at line 44 of file vaapi_transcode.c.

Referenced by encode_write(), main(), and open_input_file().

◆ ost

static

Examples: muxing.c, and vaapi_transcode.c.

Definition at line 45 of file vaapi_transcode.c.

Referenced by add_stream(), avformat_transfer_internal_stream_timing_info(), check_init_output_file(), check_keyboard_interaction(), check_output_constraints(), check_recording_time(), check_streamcopy_filters(), choose_encoder(), choose_output(), choose_pix_fmts(), close_all_output_streams(), close_output_stream(), close_stream(), configure_filtergraph(), configure_output_audio_filter(), configure_output_video_filter(), dash_check_bitstream(), dec_enc(), DEF_CHOOSE_FORMAT(), do_audio_out(), do_streamcopy(), do_subtitle_out(), do_video_out(), do_video_stats(), ffmpeg_cleanup(), finish_output_stream(), flush_encoders(), get_audio_frame(), get_input_stream(), get_ost_filters(), get_video_frame(), hw_device_setup_for_encode(), init_encoder_time_base(), init_output_bsfs(), init_output_filter(), init_output_stream(), init_output_stream_encode(), init_output_stream_streamcopy(), need_output(), new_attachment_stream(), new_audio_stream(), new_data_stream(), new_output_stream(), new_subtitle_stream(), new_unknown_stream(), new_video_stream(), ogg_restore(), ogg_save(), open_audio(), open_output_file(), open_video(), output_packet(), parse_forced_key_frames(), print_final_stats(), print_report(), process_input(), process_input_packet(), reap_filters(), seg_check_bitstream(), set_encoder_id(), transcode(), transcode_init(), transcode_step(), transcode_subtitles(), write_audio_frame(), write_packet(), and write_video_frame().

◆ initialized

int initialized = 0

static

Examples: vaapi_transcode.c.

Definition at line 46 of file vaapi_transcode.c.

Referenced by dec_enc(), ff_ccitt_unpack_init(), init_tables(), and writer_register_all().