ADP demuxer

Signed-off-by: James Almer <jamrial@gmail.com>

Changelog

@@ -41,6 +41,7 @@ version <next>:
 - extractplanes filter
 - avectorscope filter
 - ADPCM DTK decoder
+- ADP demuxer
 
 
 version 1.2:

doc/general.texi

@@ -147,6 +147,8 @@ library:
     @tab Multimedia format used in game Heart Of Darkness.
 @item Apple HTTP Live Streaming @tab   @tab X
 @item Artworx Data Format       @tab   @tab X
+@item ADP                       @tab   @tab X
+    @tab Audio format used on the Nintendo Gamecube.
 @item AFC                       @tab   @tab X
     @tab Audio format used on the Nintendo Gamecube.
 @item ASF                       @tab X @tab X

libavformat/Makefile

@@ -55,6 +55,7 @@ OBJS-$(CONFIG_AC3_DEMUXER)               += ac3dec.o rawdec.o
 OBJS-$(CONFIG_AC3_MUXER)                 += rawenc.o
 OBJS-$(CONFIG_ACT_DEMUXER)               += act.o
 OBJS-$(CONFIG_ADF_DEMUXER)               += bintext.o sauce.o
+OBJS-$(CONFIG_ADP_DEMUXER)               += adp.o
 OBJS-$(CONFIG_ADX_DEMUXER)               += adxdec.o
 OBJS-$(CONFIG_ADX_MUXER)                 += rawenc.o
 OBJS-$(CONFIG_ADTS_MUXER)                += adtsenc.o

libavformat/adp.c

+/*
+ * ADP demuxer
+ * Copyright (c) 2013 James Almer
+ *
+ * This file is part of FFmpeg.
+ *
+ * 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
+ */
+
+#include "libavutil/channel_layout.h"
+#include "libavutil/intreadwrite.h"
+#include "avformat.h"
+#include "internal.h"
+
+static int adp_probe(AVProbeData *p)
+{
+    int i;
+
+    if (p->buf_size < 32)
+        return 0;
+
+    for (i = 0; i < p->buf_size - 3; i+=32)
+        if (p->buf[i] != p->buf[i+2] || p->buf[i+1] != p->buf[i+3])
+            return 0;
+
+    return p->buf_size < 260 ? 1 : AVPROBE_SCORE_MAX / 4;
+}
+
+static int adp_read_header(AVFormatContext *s)
+{
+    AVStream *st;
+
+    st = avformat_new_stream(s, NULL);
+    if (!st)
+        return AVERROR(ENOMEM);
+
+    st->codec->codec_type     = AVMEDIA_TYPE_AUDIO;
+    st->codec->codec_id       = AV_CODEC_ID_ADPCM_DTK;
+    st->codec->channel_layout = AV_CH_LAYOUT_STEREO;
+    st->codec->channels       = 2;
+    st->codec->sample_rate    = 48000;
+    st->start_time            = 0;
+    if (s->pb->seekable)
+        st->duration          = av_get_audio_frame_duration(st->codec, avio_size(s->pb));
+
+    avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate);
+
+    return 0;
+}
+
+static int adp_read_packet(AVFormatContext *s, AVPacket *pkt)
+{
+    int ret, size = 1024;
+
+    if (url_feof(s->pb))
+        return AVERROR_EOF;
+
+    ret = av_get_packet(s->pb, pkt, size);
+
+    if (ret != size) {
+        if (ret < 0) {
+            av_free_packet(pkt);
+            return ret;
+        }
+        av_shrink_packet(pkt, ret);
+    }
+    pkt->stream_index = 0;
+
+    return ret;
+}
+
+AVInputFormat ff_adp_demuxer = {
+    .name           = "adp",
+    .long_name      = NULL_IF_CONFIG_SMALL("ADP"),
+    .read_probe     = adp_probe,
+    .read_header    = adp_read_header,
+    .read_packet    = adp_read_packet,
+    .extensions     = "adp,dtk",
+};

libavformat/allformats.c

@@ -65,6 +65,7 @@ void av_register_all(void)
     REGISTER_MUXDEMUX(AC3,              ac3);
     REGISTER_DEMUXER (ACT,              act);
     REGISTER_DEMUXER (ADF,              adf);
+    REGISTER_DEMUXER (ADP,              adp);
     REGISTER_MUXER   (ADTS,             adts);
     REGISTER_MUXDEMUX(ADX,              adx);
     REGISTER_DEMUXER (AEA,              aea);

libavformat/version.h

@@ -30,8 +30,8 @@
 #include "libavutil/avutil.h"
 
 #define LIBAVFORMAT_VERSION_MAJOR 55
-#define LIBAVFORMAT_VERSION_MINOR  4
-#define LIBAVFORMAT_VERSION_MICRO 101
+#define LIBAVFORMAT_VERSION_MINOR  5
+#define LIBAVFORMAT_VERSION_MICRO 100
 
 #define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
                                                LIBAVFORMAT_VERSION_MINOR, \

tests/fate/adpcm.mak

@@ -16,6 +16,9 @@ fate-adpcm-creative-8-2.6bit: CMD = md5 -i $(SAMPLES)/creative/BBC_3BIT.VOC -f s
 FATE_ADPCM-$(call DEMDEC, VOC, ADPCM_SBPRO_4) += fate-adpcm-creative-8-4bit
 fate-adpcm-creative-8-4bit: CMD = md5 -i $(SAMPLES)/creative/BBC_4BIT.VOC -f s16le
 
+FATE_ADPCM-$(call DEMDEC, ADP, ADPCM_DTK) += fate-adpcm-dtk
+fate-adpcm-dtk: CMD = framecrc -i $(SAMPLES)/adp/shakespr_partial.adp -f s16le
+
 FATE_ADPCM-$(call DEMDEC, EA, ADPCM_EA) += fate-adpcm-ea-1
 fate-adpcm-ea-1: CMD = framecrc -i $(SAMPLES)/ea-wve/networkBackbone-partial.wve -frames:a 26 -vn
 

tests/ref/fate/adpcm-dtk

+#tb 0: 1/48000
+0,          0,          0,      896,     3584, 0xdae789d5
+0,        896,        896,      896,     3584, 0x168ed9b6
+0,       1792,       1792,      896,     3584, 0x8920c8d5
+0,       2688,       2688,      896,     3584, 0xaf0a3245
+0,       3584,       3584,      896,     3584, 0x884ee935
+0,       4480,       4480,      896,     3584, 0xe6a832ad
+0,       5376,       5376,      896,     3584, 0x1fa12ea2
+0,       6272,       6272,      896,     3584, 0xf119198c
+0,       7168,       7168,      896,     3584, 0x0a6dbf72
+0,       8064,       8064,      896,     3584, 0xd3467881
+0,       8960,       8960,      896,     3584, 0x25d504ec
+0,       9856,       9856,      896,     3584, 0x452730c9
+0,      10752,      10752,      896,     3584, 0x42b92ff1
+0,      11648,      11648,      896,     3584, 0x85c67bf3
+0,      12544,      12544,      896,     3584, 0xab4d99e9
+0,      13440,      13440,      896,     3584, 0xe5bfc4da
+0,      14336,      14336,      896,     3584, 0x7a5210e9
+0,      15232,      15232,      896,     3584, 0x5265fcd3
+0,      16128,      16128,      896,     3584, 0x76531427
+0,      17024,      17024,      896,     3584, 0xb2b8d7ab
+0,      17920,      17920,      896,     3584, 0x05a453e8
+0,      18816,      18816,      896,     3584, 0x742c45bb
+0,      19712,      19712,      896,     3584, 0x57aaee3b
+0,      20608,      20608,      896,     3584, 0x997bf703
+0,      21504,      21504,      896,     3584, 0xe2d14b13
+0,      22400,      22400,      896,     3584, 0xdafbdd2f
+0,      23296,      23296,      896,     3584, 0x448cec3a
+0,      24192,      24192,      896,     3584, 0xe6f6fb9c
+0,      25088,      25088,      896,     3584, 0x0310276a
+0,      25984,      25984,      896,     3584, 0x44bf04e9
+0,      26880,      26880,      896,     3584, 0xe2105d33
+0,      27776,      27776,      896,     3584, 0x08b7d5e0