yading@11
|
1 /*
|
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2 * Flash Compatible Streaming Format demuxer
|
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|
3 * Copyright (c) 2000 Fabrice Bellard
|
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|
4 * Copyright (c) 2003 Tinic Uro
|
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|
5 *
|
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|
6 * This file is part of FFmpeg.
|
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|
7 *
|
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|
8 * FFmpeg is free software; you can redistribute it and/or
|
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9 * modify it under the terms of the GNU Lesser General Public
|
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|
10 * License as published by the Free Software Foundation; either
|
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|
11 * version 2.1 of the License, or (at your option) any later version.
|
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|
12 *
|
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|
13 * FFmpeg is distributed in the hope that it will be useful,
|
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14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
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|
16 * Lesser General Public License for more details.
|
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17 *
|
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18 * You should have received a copy of the GNU Lesser General Public
|
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19 * License along with FFmpeg; if not, write to the Free Software
|
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20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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21 */
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22
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23 #include "libavutil/avassert.h"
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24 #include "libavutil/channel_layout.h"
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25 #include "libavutil/imgutils.h"
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26 #include "libavutil/intreadwrite.h"
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27 #include "swf.h"
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28
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29 static const AVCodecTag swf_audio_codec_tags[] = {
|
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30 { AV_CODEC_ID_PCM_S16LE, 0x00 },
|
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31 { AV_CODEC_ID_ADPCM_SWF, 0x01 },
|
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32 { AV_CODEC_ID_MP3, 0x02 },
|
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33 { AV_CODEC_ID_PCM_S16LE, 0x03 },
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34 // { AV_CODEC_ID_NELLYMOSER, 0x06 },
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35 { AV_CODEC_ID_NONE, 0 },
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36 };
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37
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38 static int get_swf_tag(AVIOContext *pb, int *len_ptr)
|
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39 {
|
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40 int tag, len;
|
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41
|
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42 if (url_feof(pb))
|
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43 return AVERROR_EOF;
|
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44
|
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45 tag = avio_rl16(pb);
|
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46 len = tag & 0x3f;
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47 tag = tag >> 6;
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48 if (len == 0x3f) {
|
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49 len = avio_rl32(pb);
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50 }
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51 *len_ptr = len;
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52 return tag;
|
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53 }
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54
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55
|
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56 static int swf_probe(AVProbeData *p)
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57 {
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58 /* check file header */
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59 if ((p->buf[0] == 'F' || p->buf[0] == 'C') && p->buf[1] == 'W' &&
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60 p->buf[2] == 'S')
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61 return AVPROBE_SCORE_MAX;
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62 else
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63 return 0;
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64 }
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65
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66 #if CONFIG_ZLIB
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67 static int zlib_refill(void *opaque, uint8_t *buf, int buf_size)
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68 {
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69 AVFormatContext *s = opaque;
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70 SWFContext *swf = s->priv_data;
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71 z_stream *z = &swf->zstream;
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72 int ret;
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73
|
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74 retry:
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75 if (!z->avail_in) {
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76 int n = avio_read(s->pb, swf->zbuf_in, ZBUF_SIZE);
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77 if (n < 0)
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78 return n;
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79 z->next_in = swf->zbuf_in;
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80 z->avail_in = n;
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81 }
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82
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83 z->next_out = buf;
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84 z->avail_out = buf_size;
|
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85
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86 ret = inflate(z, Z_NO_FLUSH);
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87 if (ret < 0)
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88 return AVERROR(EINVAL);
|
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89 if (ret == Z_STREAM_END)
|
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90 return AVERROR_EOF;
|
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91
|
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92 if (buf_size - z->avail_out == 0)
|
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93 goto retry;
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94
|
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95 return buf_size - z->avail_out;
|
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96 }
|
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97 #endif
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98
|
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99 static int swf_read_header(AVFormatContext *s)
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100 {
|
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101 SWFContext *swf = s->priv_data;
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102 AVIOContext *pb = s->pb;
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103 int nbits, len, tag;
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104
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105 tag = avio_rb32(pb) & 0xffffff00;
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106 avio_rl32(pb);
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107
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108 if (tag == MKBETAG('C', 'W', 'S', 0)) {
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109 av_log(s, AV_LOG_INFO, "SWF compressed file detected\n");
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110 #if CONFIG_ZLIB
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111 swf->zbuf_in = av_malloc(ZBUF_SIZE);
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112 swf->zbuf_out = av_malloc(ZBUF_SIZE);
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113 swf->zpb = avio_alloc_context(swf->zbuf_out, ZBUF_SIZE, 0, s,
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114 zlib_refill, NULL, NULL);
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115 if (!swf->zbuf_in || !swf->zbuf_out || !swf->zpb)
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116 return AVERROR(ENOMEM);
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117 swf->zpb->seekable = 0;
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118 if (inflateInit(&swf->zstream) != Z_OK) {
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119 av_log(s, AV_LOG_ERROR, "Unable to init zlib context\n");
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120 return AVERROR(EINVAL);
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121 }
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122 pb = swf->zpb;
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123 #else
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124 av_log(s, AV_LOG_ERROR, "zlib support is required to read SWF compressed files\n");
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125 return AVERROR(EIO);
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126 #endif
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127 } else if (tag != MKBETAG('F', 'W', 'S', 0))
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128 return AVERROR(EIO);
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129 /* skip rectangle size */
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130 nbits = avio_r8(pb) >> 3;
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131 len = (4 * nbits - 3 + 7) / 8;
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132 avio_skip(pb, len);
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133 swf->frame_rate = avio_rl16(pb); /* 8.8 fixed */
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134 avio_rl16(pb); /* frame count */
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135
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136 swf->samples_per_frame = 0;
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137 s->ctx_flags |= AVFMTCTX_NOHEADER;
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138 return 0;
|
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139 }
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140
|
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141 static AVStream *create_new_audio_stream(AVFormatContext *s, int id, int info)
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142 {
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143 int sample_rate_code, sample_size_code;
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144 AVStream *ast = avformat_new_stream(s, NULL);
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145 if (!ast)
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146 return NULL;
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147 ast->id = id;
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148 if (info & 1) {
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149 ast->codec->channels = 2;
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150 ast->codec->channel_layout = AV_CH_LAYOUT_STEREO;
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151 } else {
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152 ast->codec->channels = 1;
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153 ast->codec->channel_layout = AV_CH_LAYOUT_MONO;
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154 }
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155 ast->codec->codec_type = AVMEDIA_TYPE_AUDIO;
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156 ast->codec->codec_id = ff_codec_get_id(swf_audio_codec_tags, info>>4 & 15);
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157 ast->need_parsing = AVSTREAM_PARSE_FULL;
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158 sample_rate_code = info>>2 & 3;
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159 sample_size_code = info>>1 & 1;
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160 if (!sample_size_code && ast->codec->codec_id == AV_CODEC_ID_PCM_S16LE)
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161 ast->codec->codec_id = AV_CODEC_ID_PCM_U8;
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162 ast->codec->sample_rate = 44100 >> (3 - sample_rate_code);
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163 avpriv_set_pts_info(ast, 64, 1, ast->codec->sample_rate);
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164 return ast;
|
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165 }
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166
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167 static int swf_read_packet(AVFormatContext *s, AVPacket *pkt)
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168 {
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169 SWFContext *swf = s->priv_data;
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170 AVIOContext *pb = s->pb;
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171 AVStream *vst = NULL, *ast = NULL, *st = 0;
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172 int tag, len, i, frame, v, res;
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173
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174 #if CONFIG_ZLIB
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175 if (swf->zpb)
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176 pb = swf->zpb;
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177 #endif
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178
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179 for(;;) {
|
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180 uint64_t pos = avio_tell(pb);
|
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181 tag = get_swf_tag(pb, &len);
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182 if (tag < 0)
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183 return tag;
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184 if (len < 0) {
|
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185 av_log(s, AV_LOG_ERROR, "invalid tag length: %d\n", len);
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186 return AVERROR_INVALIDDATA;
|
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187 }
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188 if (tag == TAG_VIDEOSTREAM) {
|
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189 int ch_id = avio_rl16(pb);
|
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190 len -= 2;
|
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191
|
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192 for (i=0; i<s->nb_streams; i++) {
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193 st = s->streams[i];
|
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194 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && st->id == ch_id)
|
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195 goto skip;
|
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196 }
|
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197
|
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198 avio_rl16(pb);
|
yading@11
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199 avio_rl16(pb);
|
yading@11
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200 avio_rl16(pb);
|
yading@11
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201 avio_r8(pb);
|
yading@11
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202 /* Check for FLV1 */
|
yading@11
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203 vst = avformat_new_stream(s, NULL);
|
yading@11
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204 if (!vst)
|
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205 return AVERROR(ENOMEM);
|
yading@11
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206 vst->id = ch_id;
|
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207 vst->codec->codec_type = AVMEDIA_TYPE_VIDEO;
|
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208 vst->codec->codec_id = ff_codec_get_id(ff_swf_codec_tags, avio_r8(pb));
|
yading@11
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209 avpriv_set_pts_info(vst, 16, 256, swf->frame_rate);
|
yading@11
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210 len -= 8;
|
yading@11
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211 } else if (tag == TAG_STREAMHEAD || tag == TAG_STREAMHEAD2) {
|
yading@11
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212 /* streaming found */
|
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213
|
yading@11
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214 for (i=0; i<s->nb_streams; i++) {
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215 st = s->streams[i];
|
yading@11
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216 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && st->id == -1)
|
yading@11
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217 goto skip;
|
yading@11
|
218 }
|
yading@11
|
219
|
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220 avio_r8(pb);
|
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221 v = avio_r8(pb);
|
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222 swf->samples_per_frame = avio_rl16(pb);
|
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223 ast = create_new_audio_stream(s, -1, v); /* -1 to avoid clash with video stream ch_id */
|
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224 if (!ast)
|
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225 return AVERROR(ENOMEM);
|
yading@11
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226 len -= 4;
|
yading@11
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227 } else if (tag == TAG_DEFINESOUND) {
|
yading@11
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228 /* audio stream */
|
yading@11
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229 int ch_id = avio_rl16(pb);
|
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230
|
yading@11
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231 for (i=0; i<s->nb_streams; i++) {
|
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232 st = s->streams[i];
|
yading@11
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233 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && st->id == ch_id)
|
yading@11
|
234 goto skip;
|
yading@11
|
235 }
|
yading@11
|
236
|
yading@11
|
237 // FIXME: The entire audio stream is stored in a single chunk/tag. Normally,
|
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|
238 // these are smaller audio streams in DEFINESOUND tags, but it's technically
|
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239 // possible they could be huge. Break it up into multiple packets if it's big.
|
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240 v = avio_r8(pb);
|
yading@11
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241 ast = create_new_audio_stream(s, ch_id, v);
|
yading@11
|
242 if (!ast)
|
yading@11
|
243 return AVERROR(ENOMEM);
|
yading@11
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244 ast->duration = avio_rl32(pb); // number of samples
|
yading@11
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245 if (((v>>4) & 15) == 2) { // MP3 sound data record
|
yading@11
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246 ast->skip_samples = avio_rl16(pb);
|
yading@11
|
247 len -= 2;
|
yading@11
|
248 }
|
yading@11
|
249 len -= 7;
|
yading@11
|
250 if ((res = av_get_packet(pb, pkt, len)) < 0)
|
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|
251 return res;
|
yading@11
|
252 pkt->pos = pos;
|
yading@11
|
253 pkt->stream_index = ast->index;
|
yading@11
|
254 return pkt->size;
|
yading@11
|
255 } else if (tag == TAG_VIDEOFRAME) {
|
yading@11
|
256 int ch_id = avio_rl16(pb);
|
yading@11
|
257 len -= 2;
|
yading@11
|
258 for(i=0; i<s->nb_streams; i++) {
|
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|
259 st = s->streams[i];
|
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|
260 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && st->id == ch_id) {
|
yading@11
|
261 frame = avio_rl16(pb);
|
yading@11
|
262 len -= 2;
|
yading@11
|
263 if (len <= 0)
|
yading@11
|
264 goto skip;
|
yading@11
|
265 if ((res = av_get_packet(pb, pkt, len)) < 0)
|
yading@11
|
266 return res;
|
yading@11
|
267 pkt->pos = pos;
|
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|
268 pkt->pts = frame;
|
yading@11
|
269 pkt->stream_index = st->index;
|
yading@11
|
270 return pkt->size;
|
yading@11
|
271 }
|
yading@11
|
272 }
|
yading@11
|
273 } else if (tag == TAG_DEFINEBITSLOSSLESS || tag == TAG_DEFINEBITSLOSSLESS2) {
|
yading@11
|
274 #if CONFIG_ZLIB
|
yading@11
|
275 long out_len;
|
yading@11
|
276 uint8_t *buf = NULL, *zbuf = NULL, *pal;
|
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|
277 uint32_t colormap[AVPALETTE_COUNT] = {0};
|
yading@11
|
278 const int alpha_bmp = tag == TAG_DEFINEBITSLOSSLESS2;
|
yading@11
|
279 const int colormapbpp = 3 + alpha_bmp;
|
yading@11
|
280 int linesize, colormapsize = 0;
|
yading@11
|
281
|
yading@11
|
282 const int ch_id = avio_rl16(pb);
|
yading@11
|
283 const int bmp_fmt = avio_r8(pb);
|
yading@11
|
284 const int width = avio_rl16(pb);
|
yading@11
|
285 const int height = avio_rl16(pb);
|
yading@11
|
286
|
yading@11
|
287 len -= 2+1+2+2;
|
yading@11
|
288
|
yading@11
|
289 switch (bmp_fmt) {
|
yading@11
|
290 case 3: // PAL-8
|
yading@11
|
291 linesize = width;
|
yading@11
|
292 colormapsize = avio_r8(pb) + 1;
|
yading@11
|
293 len--;
|
yading@11
|
294 break;
|
yading@11
|
295 case 4: // RGB15
|
yading@11
|
296 linesize = width * 2;
|
yading@11
|
297 break;
|
yading@11
|
298 case 5: // RGB24 (0RGB)
|
yading@11
|
299 linesize = width * 4;
|
yading@11
|
300 break;
|
yading@11
|
301 default:
|
yading@11
|
302 av_log(s, AV_LOG_ERROR, "invalid bitmap format %d, skipped\n", bmp_fmt);
|
yading@11
|
303 goto bitmap_end_skip;
|
yading@11
|
304 }
|
yading@11
|
305
|
yading@11
|
306 linesize = FFALIGN(linesize, 4);
|
yading@11
|
307
|
yading@11
|
308 if (av_image_check_size(width, height, 0, s) < 0 ||
|
yading@11
|
309 linesize >= INT_MAX / height ||
|
yading@11
|
310 linesize * height >= INT_MAX - colormapsize * colormapbpp) {
|
yading@11
|
311 av_log(s, AV_LOG_ERROR, "invalid frame size %dx%d\n", width, height);
|
yading@11
|
312 goto bitmap_end_skip;
|
yading@11
|
313 }
|
yading@11
|
314
|
yading@11
|
315 out_len = colormapsize * colormapbpp + linesize * height;
|
yading@11
|
316
|
yading@11
|
317 av_dlog(s, "bitmap: ch=%d fmt=%d %dx%d (linesize=%d) len=%d->%ld pal=%d\n",
|
yading@11
|
318 ch_id, bmp_fmt, width, height, linesize, len, out_len, colormapsize);
|
yading@11
|
319
|
yading@11
|
320 zbuf = av_malloc(len);
|
yading@11
|
321 buf = av_malloc(out_len);
|
yading@11
|
322 if (!zbuf || !buf) {
|
yading@11
|
323 res = AVERROR(ENOMEM);
|
yading@11
|
324 goto bitmap_end;
|
yading@11
|
325 }
|
yading@11
|
326
|
yading@11
|
327 len = avio_read(pb, zbuf, len);
|
yading@11
|
328 if (len < 0 || (res = uncompress(buf, &out_len, zbuf, len)) != Z_OK) {
|
yading@11
|
329 av_log(s, AV_LOG_WARNING, "Failed to uncompress one bitmap\n");
|
yading@11
|
330 goto bitmap_end_skip;
|
yading@11
|
331 }
|
yading@11
|
332
|
yading@11
|
333 for (i = 0; i < s->nb_streams; i++) {
|
yading@11
|
334 st = s->streams[i];
|
yading@11
|
335 if (st->codec->codec_id == AV_CODEC_ID_RAWVIDEO && st->id == -3)
|
yading@11
|
336 break;
|
yading@11
|
337 }
|
yading@11
|
338 if (i == s->nb_streams) {
|
yading@11
|
339 vst = avformat_new_stream(s, NULL);
|
yading@11
|
340 if (!vst) {
|
yading@11
|
341 res = AVERROR(ENOMEM);
|
yading@11
|
342 goto bitmap_end;
|
yading@11
|
343 }
|
yading@11
|
344 vst->id = -3; /* -3 to avoid clash with video stream and audio stream */
|
yading@11
|
345 vst->codec->codec_type = AVMEDIA_TYPE_VIDEO;
|
yading@11
|
346 vst->codec->codec_id = AV_CODEC_ID_RAWVIDEO;
|
yading@11
|
347 avpriv_set_pts_info(vst, 64, 256, swf->frame_rate);
|
yading@11
|
348 st = vst;
|
yading@11
|
349 }
|
yading@11
|
350 st->codec->width = width;
|
yading@11
|
351 st->codec->height = height;
|
yading@11
|
352
|
yading@11
|
353 if ((res = av_new_packet(pkt, out_len - colormapsize * colormapbpp)) < 0)
|
yading@11
|
354 goto bitmap_end;
|
yading@11
|
355 pkt->pos = pos;
|
yading@11
|
356 pkt->stream_index = st->index;
|
yading@11
|
357
|
yading@11
|
358 switch (bmp_fmt) {
|
yading@11
|
359 case 3:
|
yading@11
|
360 st->codec->pix_fmt = AV_PIX_FMT_PAL8;
|
yading@11
|
361 for (i = 0; i < colormapsize; i++)
|
yading@11
|
362 if (alpha_bmp) colormap[i] = buf[3]<<24 | AV_RB24(buf + 4*i);
|
yading@11
|
363 else colormap[i] = 0xffU <<24 | AV_RB24(buf + 3*i);
|
yading@11
|
364 pal = av_packet_new_side_data(pkt, AV_PKT_DATA_PALETTE, AVPALETTE_SIZE);
|
yading@11
|
365 if (!pal) {
|
yading@11
|
366 res = AVERROR(ENOMEM);
|
yading@11
|
367 goto bitmap_end;
|
yading@11
|
368 }
|
yading@11
|
369 memcpy(pal, colormap, AVPALETTE_SIZE);
|
yading@11
|
370 break;
|
yading@11
|
371 case 4:
|
yading@11
|
372 st->codec->pix_fmt = AV_PIX_FMT_RGB555;
|
yading@11
|
373 break;
|
yading@11
|
374 case 5:
|
yading@11
|
375 st->codec->pix_fmt = alpha_bmp ? AV_PIX_FMT_ARGB : AV_PIX_FMT_0RGB;
|
yading@11
|
376 break;
|
yading@11
|
377 default:
|
yading@11
|
378 av_assert0(0);
|
yading@11
|
379 }
|
yading@11
|
380
|
yading@11
|
381 if (linesize * height > pkt->size) {
|
yading@11
|
382 res = AVERROR_INVALIDDATA;
|
yading@11
|
383 goto bitmap_end;
|
yading@11
|
384 }
|
yading@11
|
385 memcpy(pkt->data, buf + colormapsize*colormapbpp, linesize * height);
|
yading@11
|
386
|
yading@11
|
387 res = pkt->size;
|
yading@11
|
388
|
yading@11
|
389 bitmap_end:
|
yading@11
|
390 av_freep(&zbuf);
|
yading@11
|
391 av_freep(&buf);
|
yading@11
|
392 return res;
|
yading@11
|
393 bitmap_end_skip:
|
yading@11
|
394 av_freep(&zbuf);
|
yading@11
|
395 av_freep(&buf);
|
yading@11
|
396 #else
|
yading@11
|
397 av_log(s, AV_LOG_ERROR, "this file requires zlib support compiled in\n");
|
yading@11
|
398 #endif
|
yading@11
|
399 } else if (tag == TAG_STREAMBLOCK) {
|
yading@11
|
400 for (i = 0; i < s->nb_streams; i++) {
|
yading@11
|
401 st = s->streams[i];
|
yading@11
|
402 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && st->id == -1) {
|
yading@11
|
403 if (st->codec->codec_id == AV_CODEC_ID_MP3) {
|
yading@11
|
404 avio_skip(pb, 4);
|
yading@11
|
405 len -= 4;
|
yading@11
|
406 if (len <= 0)
|
yading@11
|
407 goto skip;
|
yading@11
|
408 if ((res = av_get_packet(pb, pkt, len)) < 0)
|
yading@11
|
409 return res;
|
yading@11
|
410 } else { // ADPCM, PCM
|
yading@11
|
411 if (len <= 0)
|
yading@11
|
412 goto skip;
|
yading@11
|
413 if ((res = av_get_packet(pb, pkt, len)) < 0)
|
yading@11
|
414 return res;
|
yading@11
|
415 }
|
yading@11
|
416 pkt->pos = pos;
|
yading@11
|
417 pkt->stream_index = st->index;
|
yading@11
|
418 return pkt->size;
|
yading@11
|
419 }
|
yading@11
|
420 }
|
yading@11
|
421 } else if (tag == TAG_JPEG2) {
|
yading@11
|
422 for (i=0; i<s->nb_streams; i++) {
|
yading@11
|
423 st = s->streams[i];
|
yading@11
|
424 if (st->codec->codec_id == AV_CODEC_ID_MJPEG && st->id == -2)
|
yading@11
|
425 break;
|
yading@11
|
426 }
|
yading@11
|
427 if (i == s->nb_streams) {
|
yading@11
|
428 vst = avformat_new_stream(s, NULL);
|
yading@11
|
429 if (!vst)
|
yading@11
|
430 return AVERROR(ENOMEM);
|
yading@11
|
431 vst->id = -2; /* -2 to avoid clash with video stream and audio stream */
|
yading@11
|
432 vst->codec->codec_type = AVMEDIA_TYPE_VIDEO;
|
yading@11
|
433 vst->codec->codec_id = AV_CODEC_ID_MJPEG;
|
yading@11
|
434 avpriv_set_pts_info(vst, 64, 256, swf->frame_rate);
|
yading@11
|
435 st = vst;
|
yading@11
|
436 }
|
yading@11
|
437 avio_rl16(pb); /* BITMAP_ID */
|
yading@11
|
438 len -= 2;
|
yading@11
|
439 if (len < 4)
|
yading@11
|
440 goto skip;
|
yading@11
|
441 if ((res = av_new_packet(pkt, len)) < 0)
|
yading@11
|
442 return res;
|
yading@11
|
443 avio_read(pb, pkt->data, 4);
|
yading@11
|
444 if (AV_RB32(pkt->data) == 0xffd8ffd9 ||
|
yading@11
|
445 AV_RB32(pkt->data) == 0xffd9ffd8) {
|
yading@11
|
446 /* old SWF files containing SOI/EOI as data start */
|
yading@11
|
447 /* files created by swink have reversed tag */
|
yading@11
|
448 pkt->size -= 4;
|
yading@11
|
449 avio_read(pb, pkt->data, pkt->size);
|
yading@11
|
450 } else {
|
yading@11
|
451 avio_read(pb, pkt->data + 4, pkt->size - 4);
|
yading@11
|
452 }
|
yading@11
|
453 pkt->pos = pos;
|
yading@11
|
454 pkt->stream_index = st->index;
|
yading@11
|
455 return pkt->size;
|
yading@11
|
456 } else {
|
yading@11
|
457 av_log(s, AV_LOG_DEBUG, "Unknown tag: %d\n", tag);
|
yading@11
|
458 }
|
yading@11
|
459 skip:
|
yading@11
|
460 if(len<0)
|
yading@11
|
461 av_log(s, AV_LOG_WARNING, "Cliping len %d\n", len);
|
yading@11
|
462 len = FFMAX(0, len);
|
yading@11
|
463 avio_skip(pb, len);
|
yading@11
|
464 }
|
yading@11
|
465 }
|
yading@11
|
466
|
yading@11
|
467 #if CONFIG_ZLIB
|
yading@11
|
468 static av_cold int swf_read_close(AVFormatContext *avctx)
|
yading@11
|
469 {
|
yading@11
|
470 SWFContext *s = avctx->priv_data;
|
yading@11
|
471 inflateEnd(&s->zstream);
|
yading@11
|
472 av_freep(&s->zbuf_in);
|
yading@11
|
473 av_freep(&s->zbuf_out);
|
yading@11
|
474 av_freep(&s->zpb);
|
yading@11
|
475 return 0;
|
yading@11
|
476 }
|
yading@11
|
477 #endif
|
yading@11
|
478
|
yading@11
|
479 AVInputFormat ff_swf_demuxer = {
|
yading@11
|
480 .name = "swf",
|
yading@11
|
481 .long_name = NULL_IF_CONFIG_SMALL("SWF (ShockWave Flash)"),
|
yading@11
|
482 .priv_data_size = sizeof(SWFContext),
|
yading@11
|
483 .read_probe = swf_probe,
|
yading@11
|
484 .read_header = swf_read_header,
|
yading@11
|
485 .read_packet = swf_read_packet,
|
yading@11
|
486 #if CONFIG_ZLIB
|
yading@11
|
487 .read_close = swf_read_close,
|
yading@11
|
488 #endif
|
yading@11
|
489 };
|