lavf: add libquvi demuxer.

Changelog

@@ -17,6 +17,7 @@ version <next>:
 - OpenCL support
 - audio phaser filter
 - separatefields filter
+- libquvi demuxer
 
 
 version 1.2:

configure

@@ -215,6 +215,7 @@ External library support:
   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
   --enable-libopus         enable Opus decoding via libopus [no]
   --enable-libpulse        enable Pulseaudio input via libpulse [no]
+  --enable-libquvi         enable quvi input via libquvi [no]
   --enable-librtmp         enable RTMP[E] support via librtmp [no]
   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
   --enable-libsoxr         enable Include libsoxr resampling [no]
@@ -1168,6 +1169,7 @@ EXTERNAL_LIBRARY_LIST="
     libopenjpeg
     libopus
     libpulse
+    libquvi
     librtmp
     libschroedinger
     libsoxr
@@ -1958,6 +1960,7 @@ libopenjpeg_encoder_deps="libopenjpeg"
 libopus_decoder_deps="libopus"
 libopus_encoder_deps="libopus"
 libopus_encoder_select="audio_frame_queue"
+libquvi_demuxer_deps="libquvi"
 libschroedinger_decoder_deps="libschroedinger"
 libschroedinger_encoder_deps="libschroedinger"
 libspeex_decoder_deps="libspeex"
@@ -3978,6 +3981,7 @@ enabled libopenjpeg && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpe
                          die "ERROR: libopenjpeg not found"; }
 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
+enabled libquvi    && require_pkg_config libquvi quvi/quvi.h quvi_init
 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
 enabled libsoxr    && require  libsoxr soxr.h soxr_create -lsoxr

doc/demuxers.texi

@@ -103,6 +103,18 @@ probed and 0 otherwise.
 
 @end table
 
+@section libquvi
+
+Play media from Internet services using the quvi project.
+
+The demuxer accepts a @option{format} option to request a specific quality. It
+is by default set to @var{best}.
+
+See @url{http://quvi.sourceforge.net/} for more information.
+
+FFmpeg needs to be built with @code{--enable-libquvi} for this demuxer to be
+enabled.
+
 @section image2
 
 Image file demuxer.

libavformat/Makefile

@@ -405,6 +405,7 @@ OBJS-$(CONFIG_YUV4MPEGPIPE_DEMUXER)      += yuv4mpeg.o
 OBJS-$(CONFIG_LIBMODPLUG_DEMUXER)        += libmodplug.o
 OBJS-$(CONFIG_LIBNUT_DEMUXER)            += libnut.o
 OBJS-$(CONFIG_LIBNUT_MUXER)              += libnut.o
+OBJS-$(CONFIG_LIBQUVI_DEMUXER)           += libquvi.o
 OBJS-$(CONFIG_LIBRTMP)                   += librtmp.o
 
 # protocols I/O

libavformat/allformats.c

@@ -333,6 +333,7 @@ void av_register_all(void)
     /* external libraries */
     REGISTER_DEMUXER (LIBMODPLUG,       libmodplug);
     REGISTER_MUXDEMUX(LIBNUT,           libnut);
+    REGISTER_DEMUXER (LIBQUVI,          libquvi);
     REGISTER_PROTOCOL(LIBRTMP,          librtmp);
     REGISTER_PROTOCOL(LIBRTMPE,         librtmpe);
     REGISTER_PROTOCOL(LIBRTMPS,         librtmps);

libavformat/libquvi.c

@@ -0,0 +1,146 @@
+/*
+ * Copyright (c) 2013 Clément Bœsch
+ *
+ * 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 <quvi/quvi.h>
+
+#include "libavformat/avformat.h"
+#include "libavformat/internal.h"
+#include "libavutil/opt.h"
+
+typedef struct {
+    const AVClass *class;
+    char *format;
+    AVFormatContext *fmtctx;
+} LibQuviContext;
+
+#define OFFSET(x) offsetof(LibQuviContext, x)
+#define FLAGS AV_OPT_FLAG_DECODING_PARAM
+static const AVOption libquvi_options[] = {
+    { "format", "request specific format", OFFSET(format), AV_OPT_TYPE_STRING, {.str="best"}, .flags = FLAGS },
+    { NULL }
+};
+
+static const AVClass libquvi_context_class = {
+    .class_name     = "libquvi",
+    .item_name      = av_default_item_name,
+    .option         = libquvi_options,
+    .version        = LIBAVUTIL_VERSION_INT,
+};
+
+static int libquvi_close(AVFormatContext *s)
+{
+    LibQuviContext *qc = s->priv_data;
+    if (qc->fmtctx)
+        avformat_close_input(&qc->fmtctx);
+    return 0;
+}
+
+static int libquvi_read_header(AVFormatContext *s)
+{
+    int i, ret;
+    quvi_t q;
+    quvi_media_t m;
+    QUVIcode rc;
+    LibQuviContext *qc = s->priv_data;
+    char *media_url, *pagetitle;
+
+    rc = quvi_init(&q);
+    if (rc != QUVI_OK)
+        goto quvi_fail;
+
+    quvi_setopt(q, QUVIOPT_FORMAT, qc->format);
+
+    rc = quvi_parse(q, s->filename, &m);
+    if (rc != QUVI_OK)
+        goto quvi_fail;
+
+    rc = quvi_getprop(m, QUVIPROP_MEDIAURL, &media_url);
+    if (rc != QUVI_OK)
+        goto quvi_fail;
+
+    ret = avformat_open_input(&qc->fmtctx, media_url, NULL, NULL);
+    if (ret < 0)
+        goto end;
+
+    rc = quvi_getprop(m, QUVIPROP_PAGETITLE, &pagetitle);
+    if (rc == QUVI_OK)
+        av_dict_set(&s->metadata, "title", pagetitle, 0);
+
+    for (i = 0; i < qc->fmtctx->nb_streams; i++) {
+        AVStream *st = avformat_new_stream(s, NULL);
+        AVStream *ist = qc->fmtctx->streams[i];
+        if (!st) {
+            ret = AVERROR(ENOMEM);
+            goto end;
+        }
+        avpriv_set_pts_info(st, ist->pts_wrap_bits, ist->time_base.num, ist->time_base.den);
+        avcodec_copy_context(st->codec, qc->fmtctx->streams[i]->codec);
+    }
+
+    return 0;
+
+quvi_fail:
+    av_log(s, AV_LOG_ERROR, "%s\n", quvi_strerror(&q, rc));
+    ret = rc;
+
+end:
+    quvi_parse_close(&m);
+    quvi_close(&q);
+    return ret;
+}
+
+static int libquvi_read_packet(AVFormatContext *s, AVPacket *pkt)
+{
+    LibQuviContext *qc = s->priv_data;
+    return av_read_frame(qc->fmtctx, pkt);
+}
+
+static int libquvi_read_seek(AVFormatContext *s, int stream_index, int64_t timestamp, int flags)
+{
+    LibQuviContext *qc = s->priv_data;
+    return av_seek_frame(qc->fmtctx, stream_index, timestamp, flags);
+}
+
+static int libquvi_probe(AVProbeData *p)
+{
+    int score;
+    quvi_t q;
+    QUVIcode rc;
+
+    rc = quvi_init(&q);
+    if (rc != QUVI_OK)
+        return AVERROR(ENOMEM);
+    score = quvi_supported(q, (char *)p->filename) == QUVI_OK ? AVPROBE_SCORE_MAX/2 : 0;
+    quvi_close(&q);
+    return score;
+}
+
+AVInputFormat ff_libquvi_demuxer = {
+    .name           = "libquvi",
+    .long_name      = NULL_IF_CONFIG_SMALL("libquvi demuxer"),
+    .priv_data_size = sizeof(LibQuviContext),
+    .read_probe     = libquvi_probe,
+    .read_header    = libquvi_read_header,
+    .read_packet    = libquvi_read_packet,
+    .read_close     = libquvi_close,
+    .read_seek      = libquvi_read_seek,
+    .priv_class     = &libquvi_context_class,
+    .flags          = AVFMT_NOFILE,
+};

libavformat/version.h

@@ -30,7 +30,7 @@
 #include "libavutil/avutil.h"
 
 #define LIBAVFORMAT_VERSION_MAJOR 55
-#define LIBAVFORMAT_VERSION_MINOR  1
+#define LIBAVFORMAT_VERSION_MINOR  2
 #define LIBAVFORMAT_VERSION_MICRO 100
 
 #define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \