Name of the hardware accelerated codec.

The name is globally unique among encoders and among decoders (but an encoder and a decoder can share the same name).

Definition at line 3294 of file avcodec.h.

Type of codec implemented by the hardware accelerator.

See AVMEDIA_TYPE_xxx

Definition at line 3301 of file avcodec.h.

Codec implemented by the hardware accelerator.

See AV_CODEC_ID_xxx

Definition at line 3308 of file avcodec.h.

Referenced by find_hwaccel().

Supported pixel format.

Only hardware accelerated formats are supported here.

Definition at line 3315 of file avcodec.h.

Referenced by find_hwaccel().

Hardware accelerated codec capabilities.

see FF_HWACCEL_CODEC_CAP_*

Definition at line 3321 of file avcodec.h.

Definition at line 3330 of file avcodec.h.

Referenced by av_hwaccel_next(), and av_register_hwaccel().

Allocate a custom buffer.

Definition at line 3335 of file avcodec.h.

Referenced by get_buffer_internal().

Called at the beginning of each frame or field picture.

Meaningful frame information (codec specific) is guaranteed to be parsed at this point. This function is mandatory.

Note that buf can be NULL along with buf_size set to 0. Otherwise, this means the whole frame is available at this point.

Parameters

avctx the codec context

buf the frame data buffer base

buf_size the size of the frame in bytes

Returns

zero if successful, a negative value otherwise

Definition at line 3351 of file avcodec.h.

Referenced by decode_nal_unit(), decode_nal_units(), ff_h263_decode_frame(), mpeg_field_start(), and vc1_decode_frame().

Callback for each slice.

Meaningful slice information (codec specific) is guaranteed to be parsed at this point. This function is mandatory. The only exception is XvMC, that works on MB level.

Parameters

avctx the codec context

buf the slice data buffer base

buf_size the size of the slice in bytes

Returns

zero if successful, a negative value otherwise

Definition at line 3365 of file avcodec.h.

Referenced by decode_nal_unit(), decode_nal_units(), decode_slice(), er_supported(), ff_er_add_slice(), mpeg_decode_slice(), and vc1_decode_frame().

Called at the end of each frame or field picture.

The whole picture is parsed at this point and can now be sent to the hardware accelerator. This function is mandatory.

Parameters

avctx the codec context

Returns

zero if successful, a negative value otherwise

Definition at line 3376 of file avcodec.h.

Referenced by ff_h263_decode_frame(), ff_h264_field_end(), hevc_decode_frame(), mpeg_field_start(), slice_end(), and vc1_decode_frame().

Size of per-frame hardware accelerator private data.

Private data is allocated with av_mallocz() before AVCodecContext.get_buffer() and deallocated after AVCodecContext.release_buffer().

Definition at line 3385 of file avcodec.h.

Referenced by alloc_frame(), alloc_frame_buffer(), and alloc_picture().

Called for every Macroblock in a slice.

XvMC uses it to replace the ff_mpv_decode_mb(). Instead of decoding to raw picture, MB parameters are stored in an array provided by the video driver.

Parameters

s the mpeg context

Definition at line 3396 of file avcodec.h.

Referenced by ff_blockdsp_init_x86(), ff_er_frame_end(), is_intra_more_likely(), and mpv_decode_mb_internal().

Initialize the hwaccel private data.

This will be called from ff_get_format(), after hwaccel and hwaccel_context are set and the hwaccel private data in AVCodecInternal is allocated.

Definition at line 3405 of file avcodec.h.

Referenced by ff_vdpau_common_reinit(), and setup_hwaccel().

Uninitialize the hwaccel private data.

This will be called from get_format() or avcodec_close(), after hwaccel and hwaccel_context are already uninitialized.

Definition at line 3413 of file avcodec.h.

Referenced by avcodec_close(), ff_get_format(), and ff_vdpau_common_reinit().

Size of the private data to allocate in AVCodecInternal.hwaccel_priv_data.

Definition at line 3419 of file avcodec.h.

Referenced by setup_hwaccel().