History

Bink demuxer

Originally committed as revision 21569 to svn://svn.ffmpeg.org/ffmpeg/trunk

Peter Ross committed 16 years ago

Commit 2e375df1 parent 688621d5 files · +252 −0Browse files

Unified · Split

5 files
  1. Changelog +1 −0
  2. doc/general.texi +2 −0
  3. libavformat/Makefile +1 −0
  4. libavformat/allformats.c +1 −0
  5. libavformat/bink.c +247 −0
Changelog+1−0
@@ -51,6 +51,7 @@ version <next>: · 50 unmodified lines
5151 - SIPR decoder
5252 - Adobe Filmstrip muxer and demuxer
5353 - RTP depacketization of H.263
54+- Bink demuxer
5455
5556
5657
doc/general.texi+2−0
@@ -58,6 +58,8 @@ library: · 57 unmodified lines
5858 @tab Audio and video format used in some games by Beam Software.
5959 @item Bethesda Softworks VID @tab @tab X
6060 @tab Used in some games from Bethesda Softworks.
61+@item Bink @tab @tab X
62+ @tab Multimedia format used by many games.
6163 @item Brute Force & Ignorance @tab @tab X
6264 @tab Used in the game Flash Traffic: City of Angels.
6365 @item Interplay C93 @tab @tab X
libavformat/Makefile+1−0
@@ -42,6 +42,7 @@ OBJS-$(CONFIG_AVM2_MUXER) += swfenc.o · 41 unmodified lines
4242 OBJS-$(CONFIG_AVS_DEMUXER) += avs.o vocdec.o voc.o
4343 OBJS-$(CONFIG_BETHSOFTVID_DEMUXER) += bethsoftvid.o
4444 OBJS-$(CONFIG_BFI_DEMUXER) += bfi.o
45+OBJS-$(CONFIG_BINK_DEMUXER) += bink.o
4546 OBJS-$(CONFIG_C93_DEMUXER) += c93.o vocdec.o voc.o
4647 OBJS-$(CONFIG_CAF_DEMUXER) += cafdec.o caf.o mov.o riff.o isom.o
4748 OBJS-$(CONFIG_CAVSVIDEO_DEMUXER) += raw.o
libavformat/allformats.c+1−0
@@ -66,6 +66,7 @@ void av_register_all(void) · 65 unmodified lines
6666 REGISTER_DEMUXER (AVS, avs);
6767 REGISTER_DEMUXER (BETHSOFTVID, bethsoftvid);
6868 REGISTER_DEMUXER (BFI, bfi);
69+ REGISTER_DEMUXER (BINK, bink);
6970 REGISTER_DEMUXER (C93, c93);
7071 REGISTER_DEMUXER (CAF, caf);
7172 REGISTER_DEMUXER (CAVSVIDEO, cavsvideo);
libavformat/bink.c+247−0
@@ -0,0 +1,247 @@
1+/*
2+ * Bink demuxer
3+ * Copyright (c) 2008-2010 Peter Ross (pross@xvid.org)
4+ * Copyright (c) 2009 Daniel Verkamp (daniel@drv.nu)
5+ *
6+ * This file is part of FFmpeg.
7+ *
8+ * FFmpeg is free software; you can redistribute it and/or
9+ * modify it under the terms of the GNU Lesser General Public
10+ * License as published by the Free Software Foundation; either
11+ * version 2.1 of the License, or (at your option) any later version.
12+ *
13+ * FFmpeg is distributed in the hope that it will be useful,
14+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
15+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16+ * Lesser General Public License for more details.
17+ *
18+ * You should have received a copy of the GNU Lesser General Public
19+ * License along with FFmpeg; if not, write to the Free Software
20+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21+ */
22+
23+/**
24+ * @file libavformat/bink.c
25+ * Bink demuxer
26+ *
27+ * Technical details here:
28+ * http://wiki.multimedia.cx/index.php?title=Bink_Container
29+ */
30+
31+#include "libavutil/intreadwrite.h"
32+#include "avformat.h"
33+
34+enum BinkAudFlags {
35+ BINK_AUD_16BITS = 0x4000, ///< prefer 16-bit output
36+ BINK_AUD_STEREO = 0x2000,
37+ BINK_AUD_USEDCT = 0x1000,
38+};
39+
40+#define BINK_EXTRADATA_SIZE 1
41+#define BINK_MAX_AUDIO_TRACKS 256
42+#define BINK_MAX_WIDTH 7680
43+#define BINK_MAX_HEIGHT 4800
44+
45+typedef struct {
46+ uint32_t file_size;
47+ uint32_t total_frames;
48+
49+ uint32_t num_audio_tracks;
50+ int current_track; ///< audio track to return in next packet
51+ int64_t video_pts;
52+ int64_t audio_pts[BINK_MAX_AUDIO_TRACKS];
53+
54+ uint32_t remain_packet_size;
55+} BinkDemuxContext;
56+
57+static int probe(AVProbeData *p)
58+{
59+ const uint8_t *b = p->buf;
60+
61+ if ( b[0] == 'B' && b[1] == 'I' && b[2] == 'K' &&
62+ (b[3] == 'b' || b[3] == 'f' || b[3] == 'g' || b[3] == 'h' || b[3] == 'i') &&
63+ AV_RL32(b+8) > 0 && // num_frames
64+ AV_RL32(b+20) > 0 && AV_RL32(b+20) <= BINK_MAX_WIDTH &&
65+ AV_RL32(b+24) > 0 && AV_RL32(b+24) <= BINK_MAX_HEIGHT &&
66+ AV_RL32(b+28) > 0 && AV_RL32(b+32) > 0) // fps num,den
67+ return AVPROBE_SCORE_MAX;
68+ return 0;
69+}
70+
71+static int read_header(AVFormatContext *s, AVFormatParameters *ap)
72+{
73+ BinkDemuxContext *bink = s->priv_data;
74+ ByteIOContext *pb = s->pb;
75+ uint32_t fps_num, fps_den;
76+ AVStream *vst, *ast;
77+ unsigned int i;
78+ uint32_t pos, prev_pos;
79+ uint16_t flags;
80+ int keyframe;
81+
82+ vst = av_new_stream(s, 0);
83+ if (!vst)
84+ return AVERROR(ENOMEM);
85+
86+ vst->codec->codec_tag = get_le32(pb);
87+
88+ bink->file_size = get_le32(pb) + 8;
89+ bink->total_frames = get_le32(pb);
90+
91+ if (bink->total_frames > 1000000) {
92+ av_log(s, AV_LOG_ERROR, "invalid header: more than 1000000 frames\n");
93+ return AVERROR(EIO);
94+ }
95+
96+ if (get_le32(pb) > bink->file_size) {
97+ av_log(s, AV_LOG_ERROR,
98+ "invalid header: largest frame size greater than file size\n");
99+ return AVERROR(EIO);
100+ }
101+
102+ url_fskip(pb, 4);
103+
104+ vst->codec->width = get_le32(pb);
105+ vst->codec->height = get_le32(pb);
106+
107+ fps_num = get_le32(pb);
108+ fps_den = get_le32(pb);
109+ if (fps_num == 0 || fps_den == 0) {
110+ av_log(s, AV_LOG_ERROR, "invalid header: invalid fps (%d/%d)\n", fps_num, fps_den);
111+ return AVERROR(EIO);
112+ }
113+ av_set_pts_info(vst, 64, fps_den, fps_num);
114+
115+ url_fskip(pb, 4);
116+
117+ vst->codec->codec_type = CODEC_TYPE_VIDEO;
118+ vst->codec->codec_id = 0; /* FIXME: CODEC_ID_BINKVIDEO */
119+ bink->num_audio_tracks = get_le32(pb);
120+
121+ if (bink->num_audio_tracks > BINK_MAX_AUDIO_TRACKS) {
122+ av_log(s, AV_LOG_ERROR,
123+ "invalid header: more than "AV_STRINGIFY(BINK_MAX_AUDIO_TRACKS)" audio tracks (%d)\n",
124+ bink->num_audio_tracks);
125+ return AVERROR(EIO);
126+ }
127+
128+ if (bink->num_audio_tracks) {
129+ url_fskip(pb, 4 * bink->num_audio_tracks);
130+
131+ for (i = 0; i < bink->num_audio_tracks; i++) {
132+ ast = av_new_stream(s, 1);
133+ if (!ast)
134+ return AVERROR(ENOMEM);
135+ ast->codec->codec_type = CODEC_TYPE_AUDIO;
136+ ast->codec->codec_tag = 0;
137+ ast->codec->sample_rate = get_le16(pb);
138+ av_set_pts_info(ast, 64, 1, ast->codec->sample_rate);
139+ flags = get_le16(pb);
140+ ast->codec->codec_id = flags & BINK_AUD_USEDCT ?
141+ CODEC_ID_BINKAUDIO_DCT : CODEC_ID_BINKAUDIO_RDFT;
142+ ast->codec->channels = flags & BINK_AUD_STEREO ? 2 : 1;
143+ }
144+
145+ url_fskip(pb, 4 * bink->num_audio_tracks);
146+ }
147+
148+ /* frame index table */
149+ pos = get_le32(pb) & ~1;
150+ for (i = 0; i < bink->total_frames; i++) {
151+ prev_pos = pos;
152+ if (i == bink->total_frames - 1) {
153+ pos = bink->file_size;
154+ keyframe = 0;
155+ } else {
156+ pos = get_le32(pb);
157+ keyframe = pos & 1;
158+ pos &= ~1;
159+ }
160+ if (pos <= prev_pos) {
161+ av_log(s, AV_LOG_ERROR, "invalid frame index table\n");
162+ return AVERROR(EIO);
163+ }
164+ av_add_index_entry(vst, pos, i, pos - prev_pos, 0,
165+ keyframe ? AVINDEX_KEYFRAME : 0);
166+ }
167+
168+ url_fskip(pb, 4);
169+
170+ bink->current_track = -1;
171+ return 0;
172+}
173+
174+static int read_packet(AVFormatContext *s, AVPacket *pkt)
175+{
176+ BinkDemuxContext *bink = s->priv_data;
177+ ByteIOContext *pb = s->pb;
178+ int ret;
179+
180+ if (bink->current_track < 0) {
181+ int index_entry;
182+ AVStream *st = s->streams[0]; // stream 0 is video stream with index
183+
184+ if (bink->video_pts >= bink->total_frames)
185+ return AVERROR(EIO);
186+
187+ index_entry = av_index_search_timestamp(st, bink->video_pts,
188+ AVSEEK_FLAG_ANY);
189+ if (index_entry < 0) {
190+ av_log(s, AV_LOG_ERROR,
191+ "could not find index entry for frame %"PRId64"\n",
192+ bink->video_pts);
193+ return AVERROR(EIO);
194+ }
195+
196+ bink->remain_packet_size = st->index_entries[index_entry].size;
197+ bink->current_track = 0;
198+ }
199+
200+ if (bink->current_track < bink->num_audio_tracks) {
201+ uint32_t audio_size = get_le32(pb);
202+ if (audio_size > bink->remain_packet_size - 4) {
203+ av_log(s, AV_LOG_ERROR,
204+ "frame %"PRId64": audio size in header (%u) > size of packet left (%u)\n",
205+ bink->video_pts, audio_size, bink->remain_packet_size);
206+ return AVERROR(EIO);
207+ }
208+ bink->remain_packet_size -= 4 + audio_size;
209+ bink->current_track++;
210+ if (audio_size > 0) {
211+ /* Each audio packet reports the number of decompressed samples
212+ (in bytes). We use this value to calcuate the audio PTS */
213+ int reported_size = get_le32(pb) / (2 * s->streams[bink->current_track]->codec->channels);
214+ url_fseek(pb, -4, SEEK_CUR);
215+
216+ /* get one audio packet per track */
217+ if ((ret = av_get_packet(pb, pkt, audio_size))
218+ != audio_size)
219+ return ret;
220+ pkt->stream_index = bink->current_track;
221+ pkt->pts = bink->audio_pts[bink->current_track - 1] += reported_size;
222+ return 0;
223+ }
224+ }
225+
226+ /* get video packet */
227+ if ((ret = av_get_packet(pb, pkt, bink->remain_packet_size))
228+ != bink->remain_packet_size)
229+ return ret;
230+ pkt->stream_index = 0;
231+ pkt->pts = bink->video_pts++;
232+ pkt->flags |= PKT_FLAG_KEY;
233+
234+ /* -1 instructs the next call to read_packet() to read the next frame */
235+ bink->current_track = -1;
236+
237+ return 0;
238+}
239+
240+AVInputFormat bink_demuxer = {
241+ "bink",
242+ NULL_IF_CONFIG_SMALL("Bink"),
243+ sizeof(BinkDemuxContext),
244+ probe,
245+ read_header,
246+ read_packet,
247+};

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