Takes input raw video data from frame and writes the next output packet, if
available, to avpkt. The output packet does not necessarily contain data for
the most recent frame, as encoders can delay and reorder input frames
internally as needed.
@param avctx codec context
@param avpkt output AVPacket.
The user can supply an output buffer by setting
avpkt->data and avpkt->size prior to calling the
function, but if the size of the user-provided data is not
large enough, encoding will fail. All other AVPacket fields
will be reset by the encoder using av_init_packet(). If
avpkt->data is NULL, the encoder will allocate it.
The encoder will set avpkt->size to the size of the
output packet. The returned data (if any) belongs to the
caller, he is responsible for freeing it.
If this function fails or produces no output, avpkt will be
freed using av_packet_unref().
@paramin frame AVFrame containing the raw video data to be encoded.
May be NULL when flushing an encoder that has the
AV_CODEC_CAP_DELAY capability set.
@paramout got_packet_ptr This field is set to 1 by libavcodec if the
output packet is non-empty, and to 0 if it is
empty. If the function returns an error, the
packet can be assumed to be invalid, and the
value of got_packet_ptr is undefined and should
not be used.
@return 0 on success, negative error code on failure
@deprecated use avcodec_send_frame()/avcodec_receive_packet() instead
Encode a frame of video.
Takes input raw video data from frame and writes the next output packet, if available, to avpkt. The output packet does not necessarily contain data for the most recent frame, as encoders can delay and reorder input frames internally as needed.
@param avctx codec context @param avpkt output AVPacket. The user can supply an output buffer by setting avpkt->data and avpkt->size prior to calling the function, but if the size of the user-provided data is not large enough, encoding will fail. All other AVPacket fields will be reset by the encoder using av_init_packet(). If avpkt->data is NULL, the encoder will allocate it. The encoder will set avpkt->size to the size of the output packet. The returned data (if any) belongs to the caller, he is responsible for freeing it.
If this function fails or produces no output, avpkt will be freed using av_packet_unref(). @paramin frame AVFrame containing the raw video data to be encoded. May be NULL when flushing an encoder that has the AV_CODEC_CAP_DELAY capability set. @paramout got_packet_ptr This field is set to 1 by libavcodec if the output packet is non-empty, and to 0 if it is empty. If the function returns an error, the packet can be assumed to be invalid, and the value of got_packet_ptr is undefined and should not be used. @return 0 on success, negative error code on failure
@deprecated use avcodec_send_frame()/avcodec_receive_packet() instead