Called by encoders to get the next frame for encoding.

Parameters

frame An empty frame to be filled with data.

Returns

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

Definition at line 160 of file encode.c.

Referenced by eb_receive_packet(), encode_simple_internal(), ff_amf_receive_packet(), ff_nvenc_receive_packet(), ff_vaapi_encode_receive_packet(), librav1e_receive_packet(), mf_receive_packet(), and v4l2_receive_packet().

Get a buffer for a packet.

This is a wrapper around AVCodecContext.get_encode_buffer() and should be used instead calling get_encode_buffer() directly.

Definition at line 79 of file encode.c.

Referenced by a64multi_encode_frame(), adx_encode_frame(), amf_copy_buffer(), aptx_encode_frame(), avui_encode_frame(), bmp_encode_frame(), cng_encode_frame(), dfpwm_enc_frame(), dnxhd_encode_picture(), dvvideo_encode_frame(), encode_apng(), encode_frame(), encode_nals(), encode_picture_ls(), encode_yuv422p10(), ff_ac3_encode_frame_common_end(), fits_encode_frame(), flac_encode_frame(), g723_1_encode_frame(), libcodec2_encode(), libgsm_encode_frame(), libjxl_encode_frame(), libkvazaar_encode(), librav1e_receive_packet(), libshine_encode_frame(), libvorbis_encode_frame(), libwebp_anim_encode_frame(), libwebp_encode_frame(), libx265_encode_frame(), mf_sample_to_avpacket(), mp3lame_encode_frame(), pam_encode_frame(), pcm_bluray_encode_frame(), pcm_dvd_encode_frame(), pcm_encode_frame(), pnm_encode_frame(), process_output_surface(), ra144_encode_frame(), raw_encode(), roq_dpcm_encode_frame(), s302m_encode2_frame(), sbc_encode_frame(), storeframe(), svc_encode_frame(), v308_encode_frame(), v408_encode_frame(), v410_encode_frame(), vaapi_encode_output(), vbn_encode(), vtenc_cm_to_avpacket(), xavs2_encode_frame(), XAVS_frame(), xface_encode_frame(), xwd_encode_frame(), y41p_encode_frame(), and yuv4_encode_frame().

Allocate buffers for a frame.

Encoder equivalent to ff_get_buffer().

Definition at line 600 of file encode.c.

Referenced by alloc_frame_buffer(), ff_snow_get_buffer(), roq_encode_frame(), and svq1_encode_frame().

Check AVPacket size and allocate data.

Encoders supporting FFCodec.encode2() can use this as a convenience to obtain a big enough buffer for the encoded bitstream.

Parameters

avctx the AVCodecContext of the encoder

avpkt The AVPacket: on success, avpkt->data will point to a buffer of size at least size; the packet will not be refcounted. This packet must be initially blank.

size an upper bound of the size of the packet to encode

Returns

non negative on success, negative error code on failure

Definition at line 35 of file encode.c.

Referenced by aac_encode_frame(), alac_encode_frame(), amr_wb_encode_frame(), cfhd_encode_frame(), cinepak_encode_frame(), encode_frame(), encode_png(), encode_superframe(), ff_mpv_encode_picture(), ffat_encode(), flashsv2_encode_frame(), flashsv_encode_frame(), gif_encode_frame(), hap_encode(), ilbc_encode_frame(), libopenjpeg_encode_frame(), libopus_encode(), ljpeg_encode_frame(), magy_encode_frame(), mlp_encode_frame(), MPA_encode_frame(), opus_encode_frame(), pcx_encode_frame(), prores_encode_frame(), qoi_encode_frame(), qtrle_encode_frame(), roq_encode_frame(), rpza_encode_frame(), smc_encode_frame(), sunrast_encode_frame(), svq1_encode_frame(), targa_encode_frame(), tta_encode_frame(), twolame_encode_frame(), utvideo_encode_frame(), vorbis_encode_frame(), wavpack_encode_frame(), xbm_encode_frame(), and xvid_encode_frame().

Definition at line 563 of file encode.c.

Referenced by avcodec_open2().