On 2/23/2021 2:25 PM, Paul B Mahol wrote:
Signed-off-by: Paul B Mahol <[email protected]> --- libavcodec/Makefile | 1 + libavcodec/allcodecs.c | 1 + libavcodec/codec_desc.c | 7 + libavcodec/codec_id.h | 1 + libavcodec/sga.c | 525 ++++++++++++++++++++++++++++++++++++++++ 5 files changed, 535 insertions(+) create mode 100644 libavcodec/sga.cdiff --git a/libavcodec/Makefile b/libavcodec/Makefile index 8685c15eeb..dfb4a89c92 100644 --- a/libavcodec/Makefile +++ b/libavcodec/Makefile @@ -609,6 +609,7 @@ OBJS-$(CONFIG_SANM_DECODER) += sanm.o OBJS-$(CONFIG_SCPR_DECODER) += scpr.o OBJS-$(CONFIG_SCREENPRESSO_DECODER) += screenpresso.o OBJS-$(CONFIG_SDX2_DPCM_DECODER) += dpcm.o +OBJS-$(CONFIG_SGA_DECODER) += sga.o OBJS-$(CONFIG_SGI_DECODER) += sgidec.o OBJS-$(CONFIG_SGI_ENCODER) += sgienc.o rle.o OBJS-$(CONFIG_SGIRLE_DECODER) += sgirledec.o diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c index 990998b64b..a04faead16 100644 --- a/libavcodec/allcodecs.c +++ b/libavcodec/allcodecs.c @@ -289,6 +289,7 @@ extern AVCodec ff_s302m_decoder; extern AVCodec ff_sanm_decoder; extern AVCodec ff_scpr_decoder; extern AVCodec ff_screenpresso_decoder; +extern AVCodec ff_sga_decoder; extern AVCodec ff_sgi_encoder; extern AVCodec ff_sgi_decoder; extern AVCodec ff_sgirle_decoder; diff --git a/libavcodec/codec_desc.c b/libavcodec/codec_desc.c index f64ba488f2..17f8a14044 100644 --- a/libavcodec/codec_desc.c +++ b/libavcodec/codec_desc.c @@ -1849,6 +1849,13 @@ static const AVCodecDescriptor codec_descriptors[] = { .long_name = NULL_IF_CONFIG_SMALL("Simbiosis Interactive IMX Video"), .props = AV_CODEC_PROP_LOSSY, }, + { + .id = AV_CODEC_ID_SGA_VIDEO, + .type = AVMEDIA_TYPE_VIDEO, + .name = "sga", + .long_name = NULL_IF_CONFIG_SMALL("Digital Pictures SGA Video"), + .props = AV_CODEC_PROP_LOSSY,
AV_CODEC_PROP_INTRA_ONLY? Judging by how the demuxer sets every packet as a key frame.
[...]
+ + memcpy(frame->data[1], s->pal, AVPALETTE_SIZE); + frame->palette_has_changed = 1;
Missing frame->key_frame and frame->pict_type.
+ + *got_frame = 1; + + return avpkt->size; +}
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