1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
|
/*
* various utility functions used within FFmpeg
* Copyright (c) 2000, 2001, 2002 Fabrice Bellard
*
* FFmpeg 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,
* 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
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/* Functions defined here are functions that cannot be resolved through the
* ffmpeg shared libraries, yet are used in XBMC.
*/
#if (defined HAVE_CONFIG_H) && (!defined WIN32)
#include "config.h"
#endif
#if (defined USE_EXTERNAL_FFMPEG)
#include <libavformat/avformat.h>
/* Taken from libavformat/utils.c */
#if LIBAVFORMAT_VERSION_INT < AV_VERSION_INT(54,0,0)
static void flush_packet_queue(AVFormatContext *s)
{
AVPacketList *pktl;
for(;;) {
pktl = s->packet_buffer;
if (!pktl)
break;
s->packet_buffer = pktl->next;
av_free_packet(&pktl->pkt);
av_free(pktl);
}
while(s->raw_packet_buffer){
pktl = s->raw_packet_buffer;
s->raw_packet_buffer = pktl->next;
av_free_packet(&pktl->pkt);
av_free(pktl);
}
s->packet_buffer_end=
s->raw_packet_buffer_end= NULL;
#ifdef RAW_PACKET_BUFFER_SIZE
// Added on: 2009-06-25
s->raw_packet_buffer_remaining_size = RAW_PACKET_BUFFER_SIZE;
#endif
}
#else
static void free_packet_buffer(AVPacketList **pkt_buf, AVPacketList **pkt_buf_end)
{
while (*pkt_buf) {
AVPacketList *pktl = *pkt_buf;
*pkt_buf = pktl->next;
av_free_packet(&pktl->pkt);
av_freep(&pktl);
}
*pkt_buf_end = NULL;
}
/* XXX: suppress the packet queue */
static void flush_packet_queue(AVFormatContext *s)
{
free_packet_buffer(&s->parse_queue, &s->parse_queue_end);
free_packet_buffer(&s->packet_buffer, &s->packet_buffer_end);
free_packet_buffer(&s->raw_packet_buffer, &s->raw_packet_buffer_end);
s->raw_packet_buffer_remaining_size = RAW_PACKET_BUFFER_SIZE;
}
#endif
/* Taken from libavformat/utils.c
* Original name is ff_read_frame_flush
* */
void xbmc_read_frame_flush(AVFormatContext *s)
{
AVStream *st;
int i, j;
flush_packet_queue(s);
#if LIBAVFORMAT_VERSION_INT < AV_VERSION_INT(54,0,0)
s->cur_st = NULL;
#endif
/* for each stream, reset read state */
for(i = 0; i < s->nb_streams; i++) {
st = s->streams[i];
if (st->parser) {
av_parser_close(st->parser);
st->parser = NULL;
#if LIBAVFORMAT_VERSION_INT < AV_VERSION_INT(54,0,0)
av_free_packet(&st->cur_pkt);
#endif
}
st->last_IP_pts = AV_NOPTS_VALUE;
#if LIBAVFORMAT_VERSION_INT < AV_VERSION_INT(54,0,0)
st->cur_dts = AV_NOPTS_VALUE; /* we set the current DTS to an unspecified origin */
st->reference_dts = AV_NOPTS_VALUE;
/* fail safe */
st->cur_ptr = NULL;
st->cur_len = 0;
#else
#define RELATIVE_TS_BASE (INT64_MAX - (1LL<<48))
if(st->first_dts == AV_NOPTS_VALUE) st->cur_dts = RELATIVE_TS_BASE;
else st->cur_dts = AV_NOPTS_VALUE; /* we set the current DTS to an unspecified origin */
st->reference_dts = AV_NOPTS_VALUE;
st->probe_packets = MAX_PROBE_PACKETS;
#endif
for(j=0; j<MAX_REORDER_DELAY+1; j++)
st->pts_buffer[j]= AV_NOPTS_VALUE;
}
}
#endif /* (defined USE_EXTERNAL_FFMPEG) */
|
