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lavc/g729dec: Support decoding Sipro ACELP.KELVIN. 

Fixes ticket #4799.
Analyzed-by: Aleksandr Ustinov
This commit is contained in:
Carl Eugen Hoyos 2019-09-16 20:57:53 +02:00
parent dc0806dd25
commit 551fcbbccb
10 changed files with 36 additions and 6 deletions
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1
Changelog
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@ -9,6 +9,7 @@ version <next>:
- Supoort AMD AMF encoder on Linux (via Vulkan)
- IMM5 video decoder
- ZeroMQ protocol
- support Sipro ACELP.KELVIN decoding
version 4.2:

1
doc/general.texi
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@ -1067,6 +1067,7 @@ following image formats are supported:
@item AAC+ @tab E @tab IX
@tab encoding supported through external library libfdk-aac
@item AC-3 @tab IX @tab IX
@item ACELP.KELVIN @tab @tab X
@item ADPCM 4X Movie @tab @tab X
@item APDCM Yamaha AICA @tab @tab X
@item ADPCM CDROM XA @tab @tab X

1
libavcodec/Makefile
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@ -173,6 +173,7 @@ OBJS-$(CONFIG_AC3_FIXED_DECODER) += ac3dec_fixed.o ac3dec_data.o ac3.o kbd
OBJS-$(CONFIG_AC3_ENCODER) += ac3enc_float.o ac3enc.o ac3tab.o \
ac3.o kbdwin.o
OBJS-$(CONFIG_AC3_FIXED_ENCODER) += ac3enc_fixed.o ac3enc.o ac3tab.o ac3.o
OBJS-$(CONFIG_ACELP_KELVIN_DECODER) += g729dec.o lsp.o celp_math.o celp_filters.o acelp_filters.o acelp_pitch_delay.o acelp_vectors.o g729postfilter.o
OBJS-$(CONFIG_AGM_DECODER) += agm.o
OBJS-$(CONFIG_AIC_DECODER) += aic.o
OBJS-$(CONFIG_ALAC_DECODER) += alac.o alac_data.o alacdsp.o

1
libavcodec/allcodecs.c
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@ -388,6 +388,7 @@ extern AVCodec ff_ac3_encoder;
extern AVCodec ff_ac3_decoder;
extern AVCodec ff_ac3_fixed_encoder;
extern AVCodec ff_ac3_fixed_decoder;
extern AVCodec ff_acelp_kelvin_decoder;
extern AVCodec ff_alac_encoder;
extern AVCodec ff_alac_decoder;
extern AVCodec ff_als_decoder;

1
libavcodec/avcodec.h
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@ -653,6 +653,7 @@ enum AVCodecID {
AV_CODEC_ID_SBC,
AV_CODEC_ID_ATRAC9,
AV_CODEC_ID_HCOM,
AV_CODEC_ID_ACELP_KELVIN,
/* subtitle codecs */
AV_CODEC_ID_FIRST_SUBTITLE = 0x17000, ///< A dummy ID pointing at the start of subtitle codecs.

6
libavcodec/codec_desc.c
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@ -2992,6 +2992,12 @@ static const AVCodecDescriptor codec_descriptors[] = {
.long_name = NULL_IF_CONFIG_SMALL("HCOM Audio"),
.props = AV_CODEC_PROP_LOSSY,
},
{
.id = AV_CODEC_ID_ACELP_KELVIN,
.name = "acelp.kelvin",
.long_name = NULL_IF_CONFIG_SMALL("Sipro ACELP.KELVIN"),
.props = AV_CODEC_PROP_LOSSY,
},
/* subtitle codecs */
{

5
libavcodec/g729_parser.c
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@ -45,9 +45,10 @@ static int g729_parse(AVCodecParserContext *s1, AVCodecContext *avctx,
int next;
if (!s->block_size) {
av_assert1(avctx->codec_id == AV_CODEC_ID_G729);
/* FIXME: replace this heuristic block_size with more precise estimate */
s->block_size = (avctx->bit_rate < 8000) ? G729D_6K4_BLOCK_SIZE : G729_8K_BLOCK_SIZE;
if (avctx->codec_id == AV_CODEC_ID_ACELP_KELVIN)
s->block_size++;
s->block_size *= avctx->channels;
s->duration = avctx->frame_size;
}
@ -76,7 +77,7 @@ static int g729_parse(AVCodecParserContext *s1, AVCodecContext *avctx,
}
AVCodecParser ff_g729_parser = {
.codec_ids = { AV_CODEC_ID_G729 },
.codec_ids = { AV_CODEC_ID_G729, AV_CODEC_ID_ACELP_KELVIN },
.priv_data_size = sizeof(G729ParseContext),
.parser_parse = g729_parse,
.parser_close = ff_parse_close,

21
libavcodec/g729dec.c
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@ -424,7 +424,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame_ptr,
if ((ret = ff_get_buffer(avctx, frame, 0)) < 0)
return ret;
if (buf_size % (G729_8K_BLOCK_SIZE * avctx->channels) == 0) {
if (buf_size % ((G729_8K_BLOCK_SIZE + (avctx->codec_id == AV_CODEC_ID_ACELP_KELVIN)) * avctx->channels) == 0) {
packet_type = FORMAT_G729_8K;
format = &format_g729_8k;
//Reset voice decision
@ -445,6 +445,11 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame_ptr,
int bad_pitch = 0; ///< parity check failed
int is_periodic = 0; ///< whether one of the subframes is declared as periodic or not
out_frame = (int16_t*)frame->data[c];
if (avctx->codec_id == AV_CODEC_ID_ACELP_KELVIN) {
if (*buf != ((avctx->channels - 1 - c) * 0x80 | 2))
avpriv_request_sample(avctx, "First byte value %x for channel %d", *buf, c);
buf++;
}
for (i = 0; i < buf_size; i++)
frame_erasure |= buf[i];
@ -727,7 +732,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame_ptr,
}
*got_frame_ptr = 1;
return packet_type == FORMAT_G729_8K ? G729_8K_BLOCK_SIZE * avctx->channels : G729D_6K4_BLOCK_SIZE * avctx->channels;
return packet_type == FORMAT_G729_8K ? (G729_8K_BLOCK_SIZE + (avctx->codec_id == AV_CODEC_ID_ACELP_KELVIN)) * avctx->channels : G729D_6K4_BLOCK_SIZE * avctx->channels;
}
static av_cold int decode_close(AVCodecContext *avctx)
@ -749,3 +754,15 @@ AVCodec ff_g729_decoder = {
.close = decode_close,
.capabilities = AV_CODEC_CAP_SUBFRAMES | AV_CODEC_CAP_DR1,
};
AVCodec ff_acelp_kelvin_decoder = {
.name = "acelp.kelvin",
.long_name = NULL_IF_CONFIG_SMALL("Sipro ACELP.KELVIN"),
.type = AVMEDIA_TYPE_AUDIO,
.id = AV_CODEC_ID_ACELP_KELVIN,
.priv_data_size = sizeof(G729Context),
.init = decoder_init,
.decode = decode_frame,
.close = decode_close,
.capabilities = AV_CODEC_CAP_SUBFRAMES | AV_CODEC_CAP_DR1,
};

4
libavcodec/version.h
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@ -28,8 +28,8 @@
#include "libavutil/version.h"
#define LIBAVCODEC_VERSION_MAJOR 58
#define LIBAVCODEC_VERSION_MINOR 56
#define LIBAVCODEC_VERSION_MICRO 102
#define LIBAVCODEC_VERSION_MINOR 57
#define LIBAVCODEC_VERSION_MICRO 100
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
LIBAVCODEC_VERSION_MINOR, \

1
libavformat/riff.c
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@ -540,6 +540,7 @@ const AVCodecTag ff_codec_wav_tags[] = {
{ AV_CODEC_ID_AAC, 0x00ff },
{ AV_CODEC_ID_G723_1, 0x0111 },
{ AV_CODEC_ID_SIPR, 0x0130 },
{ AV_CODEC_ID_ACELP_KELVIN, 0x0135 },
{ AV_CODEC_ID_WMAV1, 0x0160 },
{ AV_CODEC_ID_WMAV2, 0x0161 },
{ AV_CODEC_ID_WMAPRO, 0x0162 },