decode.h File Reference

#include "libavutil/buffer.h"
#include "libavutil/frame.h"
#include "libavutil/hwcontext.h"
#include "avcodec.h"

Go to the source code of this file.

Data Structures
struct	FrameDecodeData
	This struct stores per-frame lavc-internal data and is attached to it via private_ref. More...

Functions
int	ff_decode_get_packet (AVCodecContext *avctx, AVPacket *pkt)
	Called by decoders to get the next packet for decoding. More...
int	ff_decode_bsfs_init (AVCodecContext *avctx)
	Called during avcodec_open2() to initialize avctx->internal->bsf. More...
int	ff_decode_get_hw_frames_ctx (AVCodecContext *avctx, enum AVHWDeviceType dev_type)
	Make sure avctx.hw_frames_ctx is set. More...
int	ff_attach_decode_data (AVFrame *frame)

Function Documentation

ff_decode_get_packet()

int ff_decode_get_packet	(	AVCodecContext *	avctx,
		AVPacket *	pkt
	)

Called by decoders to get the next packet for decoding.

Parameters

pkt	An empty packet to be filled with data.

Returns

0 if a new reference has been successfully written to pkt AVERROR(EAGAIN) if no data is currently available AVERROR_EOF if and end of stream has been reached, so no more data will be available

Definition at line 238 of file decode.c.

Referenced by binkaudio_receive_frame(), crystalhd_receive_frame(), cuvid_output_frame(), decode_simple_internal(), libdav1d_receive_frame(), mediacodec_receive_frame(), and v4l2_receive_frame().

ff_decode_bsfs_init()

int ff_decode_bsfs_init

(

AVCodecContext *

avctx

)

Called during avcodec_open2() to initialize avctx->internal->bsf.

The bsf should be freed with av_bsf_free().

Definition at line 204 of file decode.c.

Referenced by avcodec_open2().

ff_decode_get_hw_frames_ctx()

int ff_decode_get_hw_frames_ctx	(	AVCodecContext *	avctx,
		enum AVHWDeviceType	dev_type
	)

Make sure avctx.hw_frames_ctx is set.

If it's not set, the function will try to allocate it from hw_device_ctx. If that is not possible, an error message is printed, and an error code is returned.

Definition at line 1130 of file decode.c.

Referenced by ff_dxva2_decode_init(), ff_vaapi_decode_init(), and ff_vdpau_common_init().

ff_attach_decode_data()

int ff_attach_decode_data

(

AVFrame *

frame

)

Definition at line 1830 of file decode.c.

Referenced by ff_get_buffer(), ff_qsv_get_continuous_buffer(), ff_videotoolbox_alloc_frame(), and wrapped_avframe_decode().