111 lines
2.2 KiB
C
111 lines
2.2 KiB
C
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/*
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* Copyright (C) 2011 Julien BLACHE <jb@jblache.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <stdlib.h>
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#include <libavformat/avformat.h>
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#include <event.h>
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#include "logger.h"
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#include "avio_evbuffer.h"
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/*
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* libav AVIO interface for evbuffers
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*/
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#define BUFFER_SIZE 4096
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struct avio_evbuffer {
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struct evbuffer *evbuf;
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uint8_t *buffer;
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};
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static int
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avio_evbuffer_write(void *opaque, uint8_t *buf, int size)
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{
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struct avio_evbuffer *ae;
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int ret;
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ae = (struct avio_evbuffer *)opaque;
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ret = evbuffer_add(ae->evbuf, buf, size);
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return (ret == 0) ? size : -1;
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}
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AVIOContext *
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avio_evbuffer_open(struct evbuffer *evbuf)
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{
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struct avio_evbuffer *ae;
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AVIOContext *s;
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ae = (struct avio_evbuffer *)malloc(sizeof(struct avio_evbuffer));
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if (!ae)
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{
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DPRINTF(E_LOG, L_FFMPEG, "Out of memory for avio_evbuffer\n");
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return NULL;
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}
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ae->buffer = av_mallocz(BUFFER_SIZE);
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if (!ae->buffer)
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{
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DPRINTF(E_LOG, L_FFMPEG, "Out of memory for avio buffer\n");
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free(ae);
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return NULL;
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}
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ae->evbuf = evbuf;
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s = avio_alloc_context(ae->buffer, BUFFER_SIZE, 1, ae, NULL, avio_evbuffer_write, NULL);
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if (!s)
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{
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DPRINTF(E_LOG, L_FFMPEG, "Could not allocate AVIOContext\n");
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av_free(ae->buffer);
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free(ae);
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return NULL;
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}
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s->seekable = 0;
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return s;
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}
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void
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avio_evbuffer_close(AVIOContext *s)
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{
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struct avio_evbuffer *ae;
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ae = (struct avio_evbuffer *)s->opaque;
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avio_flush(s);
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av_free(ae->buffer);
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free(ae);
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av_free(s);
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}
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