* QDesign Music 2 (QDM2) payload for RTP
* Copyright (c) 2010 Ronald S. Bultje
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * 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.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * 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 FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavcodec/avcodec.h"
#include "rtp.h"
#include "rtpdec.h"
-#include "rtpdec_qdm2.h"
+#include "rtpdec_formats.h"
struct PayloadContext {
/** values read from the config header, used as packet headers */
};
/**
- * Parses configuration (basically the codec-specific extradata) from
- * a RTP config subpacket (starts with 0xff).
+ * Parse configuration (basically the codec-specific extradata) from
+ * an RTP config subpacket (starts with 0xff).
*
* Layout of the config subpacket (in bytes):
* 1: 0xFF <- config ID
case 4: /* stream with extradata */
if (item_len < 30)
return AVERROR_INVALIDDATA;
- av_freep(&st->codec->extradata);
- st->codec->extradata_size = 26 + item_len;
- if (!(st->codec->extradata = av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE))) {
- st->codec->extradata_size = 0;
+ av_freep(&st->codecpar->extradata);
+ st->codecpar->extradata_size = 26 + item_len;
+ if (!(st->codecpar->extradata = av_mallocz(st->codecpar->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE))) {
+ st->codecpar->extradata_size = 0;
return AVERROR(ENOMEM);
}
- AV_WB32(st->codec->extradata, 12);
- memcpy(st->codec->extradata + 4, "frma", 4);
- memcpy(st->codec->extradata + 8, "QDM2", 4);
- AV_WB32(st->codec->extradata + 12, 6 + item_len);
- memcpy(st->codec->extradata + 16, "QDCA", 4);
- memcpy(st->codec->extradata + 20, p + 2, item_len - 2);
- AV_WB32(st->codec->extradata + 18 + item_len, 8);
- AV_WB32(st->codec->extradata + 22 + item_len, 0);
+ AV_WB32(st->codecpar->extradata, 12);
+ memcpy(st->codecpar->extradata + 4, "frma", 4);
+ memcpy(st->codecpar->extradata + 8, "QDM2", 4);
+ AV_WB32(st->codecpar->extradata + 12, 6 + item_len);
+ memcpy(st->codecpar->extradata + 16, "QDCA", 4);
+ memcpy(st->codecpar->extradata + 20, p + 2, item_len - 2);
+ AV_WB32(st->codecpar->extradata + 18 + item_len, 8);
+ AV_WB32(st->codecpar->extradata + 22 + item_len, 0);
qdm->block_size = AV_RB32(p + 26);
break;
}
/**
- * Parses a single subpacket. We store this subpacket in an intermediate
+ * Parse a single subpacket. We store this subpacket in an intermediate
* buffer (position depends on the ID (byte[0]). When called, at least
* 4 bytes are available for reading (see qdm2_parse_packet()).
*
}
/**
- * Adds a superblock header around a set of subpackets.
+ * Add a superblock header around a set of subpackets.
*
* @return <0 on error, else 0.
*/
static int qdm2_parse_packet(AVFormatContext *s, PayloadContext *qdm,
AVStream *st, AVPacket *pkt,
uint32_t *timestamp,
- const uint8_t *buf, int len, int flags)
+ const uint8_t *buf, int len, uint16_t seq,
+ int flags)
{
int res = AVERROR_INVALIDDATA, n;
const uint8_t *end = buf + len, *p = buf;
return res;
p += res;
- /* We set codec_id to CODEC_ID_NONE initially to
+ /* We set codec_id to AV_CODEC_ID_NONE initially to
* delay decoder initialization since extradata is
* carried within the RTP stream, not SDP. Here,
- * by setting codec_id to CODEC_ID_QDM2, we are signalling
+ * by setting codec_id to AV_CODEC_ID_QDM2, we are signalling
* to the decoder that it is OK to initialize. */
- st->codec->codec_id = CODEC_ID_QDM2;
+ st->codecpar->codec_id = AV_CODEC_ID_QDM2;
}
+ if (st->codecpar->codec_id == AV_CODEC_ID_NONE)
+ return AVERROR(EAGAIN);
/* subpackets */
while (end - p >= 4) {
return (qdm->cache > 0) ? 1 : 0;
}
-static PayloadContext *qdm2_extradata_new(void)
-{
- return av_mallocz(sizeof(PayloadContext));
-}
-
-static void qdm2_extradata_free(PayloadContext *qdm)
-{
- av_free(qdm);
-}
-
RTPDynamicProtocolHandler ff_qdm2_dynamic_handler = {
- "X-QDM",
- CODEC_TYPE_AUDIO,
- CODEC_ID_NONE,
- NULL,
- qdm2_extradata_new,
- qdm2_extradata_free,
- qdm2_parse_packet,
+ .enc_name = "X-QDM",
+ .codec_type = AVMEDIA_TYPE_AUDIO,
+ .codec_id = AV_CODEC_ID_NONE,
+ .priv_data_size = sizeof(PayloadContext),
+ .parse_packet = qdm2_parse_packet,
};
projects / ffmpeg / blobdiff