@@ -830,6 +830,7 @@ OBJS-$(CONFIG_PCM_S64BE_DECODER) += pcm.o
OBJS-$(CONFIG_PCM_S64BE_ENCODER) += pcm.o
OBJS-$(CONFIG_PCM_S64LE_DECODER) += pcm.o
OBJS-$(CONFIG_PCM_S64LE_ENCODER) += pcm.o
+OBJS-$(CONFIG_PCM_SGA_DECODER) += pcm.o
OBJS-$(CONFIG_PCM_U8_DECODER) += pcm.o
OBJS-$(CONFIG_PCM_U8_ENCODER) += pcm.o
OBJS-$(CONFIG_PCM_U16BE_DECODER) += pcm.o
@@ -568,6 +568,7 @@ extern AVCodec ff_pcm_s64be_encoder;
extern AVCodec ff_pcm_s64be_decoder;
extern AVCodec ff_pcm_s64le_encoder;
extern AVCodec ff_pcm_s64le_decoder;
+extern AVCodec ff_pcm_sga_decoder;
extern AVCodec ff_pcm_u8_encoder;
extern AVCodec ff_pcm_u8_decoder;
extern AVCodec ff_pcm_u16be_encoder;
@@ -2096,6 +2096,13 @@ static const AVCodecDescriptor codec_descriptors[] = {
.long_name = NULL_IF_CONFIG_SMALL("PCM Archimedes VIDC"),
.props = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
},
+ {
+ .id = AV_CODEC_ID_PCM_SGA,
+ .type = AVMEDIA_TYPE_AUDIO,
+ .name = "pcm_sga",
+ .long_name = NULL_IF_CONFIG_SMALL("PCM SGA"),
+ .props = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+ },
/* various ADPCM codecs */
{
@@ -346,6 +346,7 @@ enum AVCodecID {
AV_CODEC_ID_PCM_F16LE,
AV_CODEC_ID_PCM_F24LE,
AV_CODEC_ID_PCM_VIDC,
+ AV_CODEC_ID_PCM_SGA,
/* various ADPCM codecs */
AV_CODEC_ID_ADPCM_IMA_QT = 0x11000,
@@ -419,6 +419,14 @@ static int pcm_decode_frame(AVCodecContext *avctx, void *data,
for (; n > 0; n--)
*samples++ = *src++ + 128;
break;
+ case AV_CODEC_ID_PCM_SGA:
+ for (; n > 0; n--) {
+ int sign = *src >> 7;
+ int magn = *src & 0x7f;
+ *samples++ = sign ? 128 - magn : 128 + magn;
+ src++;
+ }
+ break;
case AV_CODEC_ID_PCM_S8_PLANAR:
n /= avctx->channels;
for (c = 0; c < avctx->channels; c++) {
@@ -622,3 +630,4 @@ PCM_CODEC (PCM_U32LE, AV_SAMPLE_FMT_S32, pcm_u32le, "PCM unsigned
PCM_CODEC (PCM_S64BE, AV_SAMPLE_FMT_S64, pcm_s64be, "PCM signed 64-bit big-endian");
PCM_CODEC (PCM_S64LE, AV_SAMPLE_FMT_S64, pcm_s64le, "PCM signed 64-bit little-endian");
PCM_CODEC (PCM_VIDC, AV_SAMPLE_FMT_S16, pcm_vidc, "PCM Archimedes VIDC");
+PCM_DECODER(PCM_SGA, AV_SAMPLE_FMT_U8, pcm_sga, "PCM SGA");
@@ -1547,6 +1547,7 @@ int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
case AV_CODEC_ID_PCM_VIDC:
case AV_CODEC_ID_PCM_S8:
case AV_CODEC_ID_PCM_S8_PLANAR:
+ case AV_CODEC_ID_PCM_SGA:
case AV_CODEC_ID_PCM_U8:
case AV_CODEC_ID_SDX2_DPCM:
case AV_CODEC_ID_DERF_DPCM:
Signed-off-by: Paul B Mahol <onemda@gmail.com> --- libavcodec/Makefile | 1 + libavcodec/allcodecs.c | 1 + libavcodec/codec_desc.c | 7 +++++++ libavcodec/codec_id.h | 1 + libavcodec/pcm.c | 9 +++++++++ libavcodec/utils.c | 1 + 6 files changed, 20 insertions(+)