[FFmpeg-cvslog] aptx: add raw muxer and demuxer for aptX HD
Aurelien Jacobs
git at videolan.org
Fri Feb 9 23:19:11 EET 2018
ffmpeg | branch: master | Aurelien Jacobs <aurel at gnuage.org> | Sat Jan 6 17:33:01 2018 +0100| [d8258489c87e5571337056be6ce1c2aa739e6873] | committer: Aurelien Jacobs
aptx: add raw muxer and demuxer for aptX HD
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=d8258489c87e5571337056be6ce1c2aa739e6873
---
Changelog | 2 +-
doc/general.texi | 1 +
libavformat/Makefile | 2 ++
libavformat/allformats.c | 2 ++
libavformat/aptxdec.c | 58 ++++++++++++++++++++++++++++++++++++++++++++----
libavformat/rawenc.c | 13 +++++++++++
6 files changed, 73 insertions(+), 5 deletions(-)
diff --git a/Changelog b/Changelog
index e23fdd6ff8..2acdbbea30 100644
--- a/Changelog
+++ b/Changelog
@@ -12,7 +12,7 @@ version <next>:
- Intel QSV-accelerated MJPEG encoding
- PCE support for extended channel layouts in the AAC encoder
- native aptX and aptX HD encoder and decoder
-- Raw aptX muxer and demuxer
+- Raw aptX and aptX HD muxer and demuxer
- NVIDIA NVDEC-accelerated H.264, HEVC, MPEG-1/2/4, VC1, VP8/9 hwaccel decoding
- Intel QSV-accelerated overlay filter
- mcompand audio filter
diff --git a/doc/general.texi b/doc/general.texi
index 352110f42c..9ddcccf041 100644
--- a/doc/general.texi
+++ b/doc/general.texi
@@ -455,6 +455,7 @@ library:
@item raw AMR-NB @tab @tab X
@item raw AMR-WB @tab @tab X
@item raw aptX @tab X @tab X
+ at item raw aptX HD @tab X @tab X
@item raw Chinese AVS video @tab X @tab X
@item raw CRI ADX @tab X @tab X
@item raw Dirac @tab X @tab X
diff --git a/libavformat/Makefile b/libavformat/Makefile
index f9a45338ec..404873624d 100644
--- a/libavformat/Makefile
+++ b/libavformat/Makefile
@@ -96,6 +96,8 @@ OBJS-$(CONFIG_APNG_DEMUXER) += apngdec.o
OBJS-$(CONFIG_APNG_MUXER) += apngenc.o
OBJS-$(CONFIG_APTX_DEMUXER) += aptxdec.o rawdec.o
OBJS-$(CONFIG_APTX_MUXER) += rawenc.o
+OBJS-$(CONFIG_APTX_HD_DEMUXER) += aptxdec.o rawdec.o
+OBJS-$(CONFIG_APTX_HD_MUXER) += rawenc.o
OBJS-$(CONFIG_AQTITLE_DEMUXER) += aqtitledec.o subtitles.o
OBJS-$(CONFIG_ASF_DEMUXER) += asfdec_f.o asf.o asfcrypt.o \
avlanguage.o
diff --git a/libavformat/allformats.c b/libavformat/allformats.c
index 9fd649bb4c..e75cd917e4 100644
--- a/libavformat/allformats.c
+++ b/libavformat/allformats.c
@@ -59,6 +59,8 @@ extern AVInputFormat ff_apng_demuxer;
extern AVOutputFormat ff_apng_muxer;
extern AVInputFormat ff_aptx_demuxer;
extern AVOutputFormat ff_aptx_muxer;
+extern AVInputFormat ff_aptx_hd_demuxer;
+extern AVOutputFormat ff_aptx_hd_muxer;
extern AVInputFormat ff_aqtitle_demuxer;
extern AVInputFormat ff_asf_demuxer;
extern AVOutputFormat ff_asf_muxer;
diff --git a/libavformat/aptxdec.c b/libavformat/aptxdec.c
index 3b8fae1b55..467bc3fd5a 100644
--- a/libavformat/aptxdec.c
+++ b/libavformat/aptxdec.c
@@ -26,26 +26,49 @@
#define APTX_BLOCK_SIZE 4
#define APTX_PACKET_SIZE (256*APTX_BLOCK_SIZE)
+#define APTX_HD_BLOCK_SIZE 6
+#define APTX_HD_PACKET_SIZE (256*APTX_HD_BLOCK_SIZE)
+
typedef struct AptXDemuxerContext {
AVClass *class;
int sample_rate;
} AptXDemuxerContext;
-static int aptx_read_header(AVFormatContext *s)
+static AVStream *aptx_read_header_common(AVFormatContext *s)
{
AptXDemuxerContext *s1 = s->priv_data;
AVStream *st = avformat_new_stream(s, NULL);
if (!st)
- return AVERROR(ENOMEM);
+ return NULL;
st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
- st->codecpar->codec_id = AV_CODEC_ID_APTX;
st->codecpar->format = AV_SAMPLE_FMT_S32P;
st->codecpar->channels = 2;
st->codecpar->sample_rate = s1->sample_rate;
+ st->start_time = 0;
+ return st;
+}
+
+static int aptx_read_header(AVFormatContext *s)
+{
+ AVStream *st = aptx_read_header_common(s);
+ if (!st)
+ return AVERROR(ENOMEM);
+ st->codecpar->codec_id = AV_CODEC_ID_APTX;
st->codecpar->bits_per_coded_sample = 4;
st->codecpar->block_align = APTX_BLOCK_SIZE;
st->codecpar->frame_size = APTX_PACKET_SIZE;
- st->start_time = 0;
+ return 0;
+}
+
+static int aptx_hd_read_header(AVFormatContext *s)
+{
+ AVStream *st = aptx_read_header_common(s);
+ if (!st)
+ return AVERROR(ENOMEM);
+ st->codecpar->codec_id = AV_CODEC_ID_APTX_HD;
+ st->codecpar->bits_per_coded_sample = 6;
+ st->codecpar->block_align = APTX_HD_BLOCK_SIZE;
+ st->codecpar->frame_size = APTX_HD_PACKET_SIZE;
return 0;
}
@@ -54,11 +77,17 @@ static int aptx_read_packet(AVFormatContext *s, AVPacket *pkt)
return av_get_packet(s->pb, pkt, APTX_PACKET_SIZE);
}
+static int aptx_hd_read_packet(AVFormatContext *s, AVPacket *pkt)
+{
+ return av_get_packet(s->pb, pkt, APTX_HD_PACKET_SIZE);
+}
+
static const AVOption aptx_options[] = {
{ "sample_rate", "", offsetof(AptXDemuxerContext, sample_rate), AV_OPT_TYPE_INT, {.i64 = 48000}, 0, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
{ NULL },
};
+#if CONFIG_APTX_MUXER
static const AVClass aptx_demuxer_class = {
.class_name = "aptx demuxer",
.item_name = av_default_item_name,
@@ -76,3 +105,24 @@ AVInputFormat ff_aptx_demuxer = {
.flags = AVFMT_GENERIC_INDEX,
.priv_class = &aptx_demuxer_class,
};
+#endif
+
+#if CONFIG_APTX_HD_DEMUXER
+static const AVClass aptx_hd_demuxer_class = {
+ .class_name = "aptx hd demuxer",
+ .item_name = av_default_item_name,
+ .option = aptx_options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
+AVInputFormat ff_aptx_hd_demuxer = {
+ .name = "aptx_hd",
+ .long_name = NULL_IF_CONFIG_SMALL("raw aptX HD"),
+ .extensions = "aptxhd",
+ .priv_data_size = sizeof(AptXDemuxerContext),
+ .read_header = aptx_hd_read_header,
+ .read_packet = aptx_hd_read_packet,
+ .flags = AVFMT_GENERIC_INDEX,
+ .priv_class = &aptx_hd_demuxer_class,
+};
+#endif
diff --git a/libavformat/rawenc.c b/libavformat/rawenc.c
index aa3ef76fbf..dcf880d17e 100644
--- a/libavformat/rawenc.c
+++ b/libavformat/rawenc.c
@@ -104,6 +104,19 @@ AVOutputFormat ff_aptx_muxer = {
};
#endif
+#if CONFIG_APTX_HD_MUXER
+AVOutputFormat ff_aptx_hd_muxer = {
+ .name = "aptx_hd",
+ .long_name = NULL_IF_CONFIG_SMALL("raw aptX HD (Audio Processing Technology for Bluetooth)"),
+ .extensions = "aptxhd",
+ .audio_codec = AV_CODEC_ID_APTX_HD,
+ .video_codec = AV_CODEC_ID_NONE,
+ .write_header = force_one_stream,
+ .write_packet = ff_raw_write_packet,
+ .flags = AVFMT_NOTIMESTAMPS,
+};
+#endif
+
#if CONFIG_CAVSVIDEO_MUXER
AVOutputFormat ff_cavsvideo_muxer = {
.name = "cavsvideo",
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