Not yet complete, for demuxing AAC the AAC header must be generated
manually.
Possibly the decoder could accept the header as extradata to simplify
this.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
... | ... |
@@ -167,6 +167,7 @@ library: |
167 | 167 |
@item NUT @tab X @tab X |
168 | 168 |
@tab NUT Open Container Format |
169 | 169 |
@item Ogg @tab X @tab X |
170 |
+@item Playstation Portable PMP @tab @tab X |
|
170 | 171 |
@item TechnoTrend PVA @tab @tab X |
171 | 172 |
@tab Used by TechnoTrend DVB PCI boards. |
172 | 173 |
@item QCP @tab @tab X |
... | ... |
@@ -218,6 +218,7 @@ OBJS-$(CONFIG_PCM_U32LE_DEMUXER) += pcmdec.o pcm.o rawdec.o |
218 | 218 |
OBJS-$(CONFIG_PCM_U32LE_MUXER) += pcmenc.o rawenc.o |
219 | 219 |
OBJS-$(CONFIG_PCM_U8_DEMUXER) += pcmdec.o pcm.o rawdec.o |
220 | 220 |
OBJS-$(CONFIG_PCM_U8_MUXER) += pcmenc.o rawenc.o |
221 |
+OBJS-$(CONFIG_PMP_DEMUXER) += pmpdec.o |
|
221 | 222 |
OBJS-$(CONFIG_PVA_DEMUXER) += pva.o |
222 | 223 |
OBJS-$(CONFIG_QCP_DEMUXER) += qcp.o |
223 | 224 |
OBJS-$(CONFIG_R3D_DEMUXER) += r3d.o |
... | ... |
@@ -177,6 +177,7 @@ void av_register_all(void) |
177 | 177 |
REGISTER_MUXDEMUX (PCM_U16BE, pcm_u16be); |
178 | 178 |
REGISTER_MUXDEMUX (PCM_U16LE, pcm_u16le); |
179 | 179 |
REGISTER_MUXDEMUX (PCM_U8, pcm_u8); |
180 |
+ REGISTER_DEMUXER (PMP, pmp); |
|
180 | 181 |
REGISTER_MUXER (PSP, psp); |
181 | 182 |
REGISTER_DEMUXER (PVA, pva); |
182 | 183 |
REGISTER_DEMUXER (QCP, qcp); |
183 | 184 |
new file mode 100644 |
... | ... |
@@ -0,0 +1,179 @@ |
0 |
+/* |
|
1 |
+ * PMP demuxer |
|
2 |
+ * Copyright (c) 2011 Reimar Döffinger |
|
3 |
+ * |
|
4 |
+ * This file is part of Libav. |
|
5 |
+ * |
|
6 |
+ * Libav is free software; you can redistribute it and/or |
|
7 |
+ * modify it under the terms of the GNU Lesser General Public |
|
8 |
+ * License as published by the Free Software Foundation; either |
|
9 |
+ * version 2.1 of the License, or (at your option) any later version. |
|
10 |
+ * |
|
11 |
+ * Libav is distributed in the hope that it will be useful, |
|
12 |
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
13 |
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
|
14 |
+ * Lesser General Public License for more details. |
|
15 |
+ * |
|
16 |
+ * You should have received a copy of the GNU Lesser General Public |
|
17 |
+ * License along with Libav; if not, write to the Free Software |
|
18 |
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
|
19 |
+ */ |
|
20 |
+ |
|
21 |
+#include "libavutil/intreadwrite.h" |
|
22 |
+#include "avformat.h" |
|
23 |
+ |
|
24 |
+typedef struct PMPContext { |
|
25 |
+ int cur_stream; |
|
26 |
+ int num_streams; |
|
27 |
+ int audio_packets; |
|
28 |
+ int current_packet; |
|
29 |
+ uint32_t *packet_sizes; |
|
30 |
+ int packet_sizes_alloc; |
|
31 |
+} PMPContext; |
|
32 |
+ |
|
33 |
+static int pmp_probe(AVProbeData *p) |
|
34 |
+{ |
|
35 |
+ if (!memcmp(p->buf, "pmpm\1\0\0\0", 8)) |
|
36 |
+ return AVPROBE_SCORE_MAX; |
|
37 |
+ return 0; |
|
38 |
+} |
|
39 |
+ |
|
40 |
+static int pmp_header(AVFormatContext *s, AVFormatParameters *ap) |
|
41 |
+{ |
|
42 |
+ PMPContext *pmp = s->priv_data; |
|
43 |
+ AVIOContext *pb = s->pb; |
|
44 |
+ int tb_num, tb_den; |
|
45 |
+ int index_cnt; |
|
46 |
+ int audio_codec_id = CODEC_ID_NONE; |
|
47 |
+ int srate, channels; |
|
48 |
+ int i; |
|
49 |
+ uint64_t pos; |
|
50 |
+ AVStream *vst = avformat_new_stream(s, NULL); |
|
51 |
+ if (!vst) |
|
52 |
+ return AVERROR(ENOMEM); |
|
53 |
+ vst->codec->codec_type = AVMEDIA_TYPE_VIDEO; |
|
54 |
+ avio_skip(pb, 8); |
|
55 |
+ switch (avio_rl32(pb)) { |
|
56 |
+ case 0: |
|
57 |
+ vst->codec->codec_id = CODEC_ID_MPEG4; |
|
58 |
+ break; |
|
59 |
+ case 1: |
|
60 |
+ vst->codec->codec_id = CODEC_ID_H264; |
|
61 |
+ break; |
|
62 |
+ default: |
|
63 |
+ av_log(s, AV_LOG_ERROR, "Unsupported video format\n"); |
|
64 |
+ break; |
|
65 |
+ } |
|
66 |
+ index_cnt = avio_rl32(pb); |
|
67 |
+ vst->codec->width = avio_rl32(pb); |
|
68 |
+ vst->codec->height = avio_rl32(pb); |
|
69 |
+ |
|
70 |
+ tb_num = avio_rl32(pb); |
|
71 |
+ tb_den = avio_rl32(pb); |
|
72 |
+ av_set_pts_info(vst, 32, tb_num, tb_den); |
|
73 |
+ vst->nb_frames = index_cnt; |
|
74 |
+ vst->duration = index_cnt; |
|
75 |
+ |
|
76 |
+ switch (avio_rl32(pb)) { |
|
77 |
+ case 0: |
|
78 |
+ audio_codec_id = CODEC_ID_MP3; |
|
79 |
+ break; |
|
80 |
+ case 1: |
|
81 |
+ av_log(s, AV_LOG_WARNING, "AAC is not yet correctly supported\n"); |
|
82 |
+ audio_codec_id = CODEC_ID_AAC; |
|
83 |
+ break; |
|
84 |
+ default: |
|
85 |
+ av_log(s, AV_LOG_ERROR, "Unsupported audio format\n"); |
|
86 |
+ break; |
|
87 |
+ } |
|
88 |
+ pmp->num_streams = avio_rl16(pb) + 1; |
|
89 |
+ avio_skip(pb, 10); |
|
90 |
+ srate = avio_rl32(pb); |
|
91 |
+ channels = avio_rl32(pb) + 1; |
|
92 |
+ for (i = 1; i < pmp->num_streams; i++) { |
|
93 |
+ AVStream *ast = avformat_new_stream(s, NULL); |
|
94 |
+ if (!ast) |
|
95 |
+ return AVERROR(ENOMEM); |
|
96 |
+ ast->codec->codec_type = AVMEDIA_TYPE_AUDIO; |
|
97 |
+ ast->codec->codec_id = audio_codec_id; |
|
98 |
+ ast->codec->channels = channels; |
|
99 |
+ ast->codec->sample_rate = srate; |
|
100 |
+ av_set_pts_info(ast, 32, 1, srate); |
|
101 |
+ } |
|
102 |
+ pos = avio_tell(pb) + 4 * index_cnt; |
|
103 |
+ for (i = 0; i < index_cnt; i++) { |
|
104 |
+ int size = avio_rl32(pb); |
|
105 |
+ int flags = size & 1 ? AVINDEX_KEYFRAME : 0; |
|
106 |
+ size >>= 1; |
|
107 |
+ av_add_index_entry(vst, pos, i, size, 0, flags); |
|
108 |
+ pos += size; |
|
109 |
+ } |
|
110 |
+ return 0; |
|
111 |
+} |
|
112 |
+ |
|
113 |
+static int pmp_packet(AVFormatContext *s, AVPacket *pkt) |
|
114 |
+{ |
|
115 |
+ PMPContext *pmp = s->priv_data; |
|
116 |
+ AVIOContext *pb = s->pb; |
|
117 |
+ int ret = 0; |
|
118 |
+ int i; |
|
119 |
+ |
|
120 |
+ if (pb->eof_reached) |
|
121 |
+ return AVERROR_EOF; |
|
122 |
+ if (pmp->cur_stream == 0) { |
|
123 |
+ int num_packets; |
|
124 |
+ pmp->audio_packets = avio_r8(pb); |
|
125 |
+ num_packets = (pmp->num_streams - 1) * pmp->audio_packets + 1; |
|
126 |
+ avio_skip(pb, 8); |
|
127 |
+ pmp->current_packet = 0; |
|
128 |
+ av_fast_malloc(&pmp->packet_sizes, |
|
129 |
+ &pmp->packet_sizes_alloc, |
|
130 |
+ num_packets * sizeof(*pmp->packet_sizes)); |
|
131 |
+ if (!pmp->packet_sizes_alloc) { |
|
132 |
+ av_log(s, AV_LOG_ERROR, "Cannot (re)allocate packet buffer\n"); |
|
133 |
+ return AVERROR(ENOMEM); |
|
134 |
+ } |
|
135 |
+ for (i = 0; i < num_packets; i++) |
|
136 |
+ pmp->packet_sizes[i] = avio_rl32(pb); |
|
137 |
+ } |
|
138 |
+ ret = av_get_packet(pb, pkt, pmp->packet_sizes[pmp->current_packet]); |
|
139 |
+ if (ret > 0) { |
|
140 |
+ ret = 0; |
|
141 |
+ // FIXME: this is a hack that should be removed once |
|
142 |
+ // compute_pkt_fields() can handle timestamps properly |
|
143 |
+ if (pmp->cur_stream == 0) |
|
144 |
+ pkt->dts = s->streams[0]->cur_dts++; |
|
145 |
+ pkt->stream_index = pmp->cur_stream; |
|
146 |
+ } |
|
147 |
+ pmp->current_packet++; |
|
148 |
+ if (pmp->current_packet == 1 || pmp->current_packet > pmp->audio_packets) |
|
149 |
+ pmp->cur_stream = (pmp->cur_stream + 1) % pmp->num_streams; |
|
150 |
+ |
|
151 |
+ return ret; |
|
152 |
+} |
|
153 |
+ |
|
154 |
+static int pmp_seek(AVFormatContext *s, int stream_idx, int64_t ts, int flags) |
|
155 |
+{ |
|
156 |
+ PMPContext *pmp = s->priv_data; |
|
157 |
+ pmp->cur_stream = 0; |
|
158 |
+ // fallback to default seek now |
|
159 |
+ return -1; |
|
160 |
+} |
|
161 |
+ |
|
162 |
+static int pmp_close(AVFormatContext *s) |
|
163 |
+{ |
|
164 |
+ PMPContext *pmp = s->priv_data; |
|
165 |
+ av_freep(&pmp->packet_sizes); |
|
166 |
+ return 0; |
|
167 |
+} |
|
168 |
+ |
|
169 |
+AVInputFormat ff_pmp_demuxer = { |
|
170 |
+ .name = "pmp", |
|
171 |
+ .long_name = NULL_IF_CONFIG_SMALL("Playstation Portable PMP format"), |
|
172 |
+ .priv_data_size = sizeof(PMPContext), |
|
173 |
+ .read_probe = pmp_probe, |
|
174 |
+ .read_header = pmp_header, |
|
175 |
+ .read_packet = pmp_packet, |
|
176 |
+ .read_seek = pmp_seek, |
|
177 |
+ .read_close = pmp_close, |
|
178 |
+}; |