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 (AVPacket enc_pkt, AVFrame frame)

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

static

Examples: vaapi_transcode.c.

Definition at line 145 of file vaapi_transcode.c.

Referenced by main().

◆ main()

int main	(	int	argc,
		char **	argv
	)

Examples: vaapi_transcode.c.

Definition at line 227 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

Definition at line 45 of file vaapi_transcode.c.

Referenced by dec_enc().

◆ initialized

int initialized = 0

static

Examples: vaapi_transcode.c.

Definition at line 46 of file vaapi_transcode.c.

Referenced by dec_enc(), and writer_register_all().