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 |
+}; |