From 00332e0a064dad866812de9162b009cbaba6f5df Mon Sep 17 00:00:00 2001 From: Luca Barbato Date: Fri, 9 Oct 2015 14:12:04 +0200 Subject: wrapped_avframe: Initial implementation --- libavcodec/wrapped_avframe.c | 74 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 74 insertions(+) create mode 100644 libavcodec/wrapped_avframe.c (limited to 'libavcodec/wrapped_avframe.c') diff --git a/libavcodec/wrapped_avframe.c b/libavcodec/wrapped_avframe.c new file mode 100644 index 0000000000..9d504dbd06 --- /dev/null +++ b/libavcodec/wrapped_avframe.c @@ -0,0 +1,74 @@ +/* + * AVFrame wrapper + * Copyright (c) 2015 Luca Barbato + * + * This file is part of Libav. + * + * Libav is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * Libav is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with Libav; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file + * Simple wrapper to store an AVFrame and forward it as AVPacket. + */ + +#include "avcodec.h" +#include "internal.h" + +#include "libavutil/internal.h" +#include "libavutil/frame.h" +#include "libavutil/buffer.h" +#include "libavutil/pixdesc.h" + +static void wrapped_avframe_release_buffer(void *unused, uint8_t *data) +{ + AVFrame *frame = (AVFrame *)data; + + av_frame_free(&frame); +} + +static int wrapped_avframe_encode(AVCodecContext *avctx, AVPacket *pkt, + const AVFrame *frame, int *got_packet) +{ + AVFrame *wrapped = av_frame_clone(frame); + int ret; + + if (!wrapped) + return AVERROR(ENOMEM); + + pkt->buf = av_buffer_create((uint8_t *)wrapped, sizeof(*wrapped), + wrapped_avframe_release_buffer, NULL, + AV_BUFFER_FLAG_READONLY); + if (!pkt->buf) { + av_frame_free(&wrapped); + return AVERROR(ENOMEM); + } + + pkt->data = (uint8_t *)wrapped; + pkt->size = sizeof(*wrapped); + + pkt->flags |= AV_PKT_FLAG_KEY; + *got_packet = 1; + return 0; +} + +AVCodec ff_wrapped_avframe_encoder = { + .name = "wrapped_avframe", + .long_name = NULL_IF_CONFIG_SMALL("AVFrame to AVPacket passthrough"), + .type = AVMEDIA_TYPE_VIDEO, + .id = AV_CODEC_ID_WRAPPED_AVFRAME, + .encode2 = wrapped_avframe_encode, + .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE, +}; -- cgit v1.2.3