This decodes more or less single sample we have.
Why inter frame decoding looks bad?
Signed-off-by: Paul B Mahol <one...@gmail.com>
---
libavcodec/Makefile | 5 ++
libavcodec/allcodecs.c | 1 +
libavcodec/avcodec.h | 1 +
libavcodec/codec_desc.c | 7 +++
libavcodec/h264dec.c | 103 +++++++++++++++++++++++++++++++++++++++-
libavcodec/h264dec.h | 3 ++
libavformat/riff.c | 1 +
7 files changed, 120 insertions(+), 1 deletion(-)
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index 3e16a13004..22f456bda3 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -386,6 +386,11 @@ OBJS-$(CONFIG_IDF_DECODER) += bintext.o
cga_data.o
OBJS-$(CONFIG_IFF_ILBM_DECODER) += iff.o
OBJS-$(CONFIG_IMC_DECODER) += imc.o
OBJS-$(CONFIG_IMM4_DECODER) += imm4.o
+OBJS-$(CONFIG_IMM5_DECODER) += h264dec.o h264_cabac.o h264_cavlc.o \
+ h264_direct.o h264_loopfilter.o \
+ h264_mb.o h264_picture.o \
+ h264_refs.o h264_sei.o \
+ h264_slice.o h264data.o
OBJS-$(CONFIG_INDEO2_DECODER) += indeo2.o
OBJS-$(CONFIG_INDEO3_DECODER) += indeo3.o
OBJS-$(CONFIG_INDEO4_DECODER) += indeo4.o ivi.o
diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c
index 7dbfcb3dda..29bf718fd4 100644
--- a/libavcodec/allcodecs.c
+++ b/libavcodec/allcodecs.c
@@ -155,6 +155,7 @@ extern AVCodec ff_huffyuv_decoder;
extern AVCodec ff_idcin_decoder;
extern AVCodec ff_iff_ilbm_decoder;
extern AVCodec ff_imm4_decoder;
+extern AVCodec ff_imm5_decoder;
extern AVCodec ff_indeo2_decoder;
extern AVCodec ff_indeo3_decoder;
extern AVCodec ff_indeo4_decoder;
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index 705a3ce4f3..356cf28325 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -452,6 +452,7 @@ enum AVCodecID {
AV_CODEC_ID_MWSC,
AV_CODEC_ID_WCMV,
AV_CODEC_ID_RASC,
+ AV_CODEC_ID_IMM5,
/* various PCM "codecs" */
AV_CODEC_ID_FIRST_AUDIO = 0x10000, ///< A dummy id pointing at the
start of audio codecs
diff --git a/libavcodec/codec_desc.c b/libavcodec/codec_desc.c
index 67a30542d1..e630109db4 100644
--- a/libavcodec/codec_desc.c
+++ b/libavcodec/codec_desc.c
@@ -1689,6 +1689,13 @@ static const AVCodecDescriptor codec_descriptors[] = {
.long_name = NULL_IF_CONFIG_SMALL("RemotelyAnywhere Screen Capture"),
.props = AV_CODEC_PROP_LOSSY,
},
+ {
+ .id = AV_CODEC_ID_IMM5,
+ .type = AVMEDIA_TYPE_VIDEO,
+ .name = "imm5",
+ .long_name = NULL_IF_CONFIG_SMALL("Infinity IMM5"),
+ .props = AV_CODEC_PROP_LOSSY,
+ },
/* various PCM "codecs" */
{
diff --git a/libavcodec/h264dec.c b/libavcodec/h264dec.c
index 7b4c5c76ea..76caec65ba 100644
--- a/libavcodec/h264dec.c
+++ b/libavcodec/h264dec.c
@@ -412,7 +412,7 @@ static av_cold int h264_decode_init(AVCodecContext *avctx)
}
avctx->ticks_per_frame = 2;
- if (avctx->extradata_size > 0 && avctx->extradata) {
+ if (avctx->codec_id != AV_CODEC_ID_IMM5 && avctx->extradata_size > 0 &&
avctx->extradata) {
ret = ff_h264_decode_extradata(avctx->extradata, avctx->extradata_size,
&h->ps, &h->is_avc, &h->nal_length_size,
avctx->err_recognition, avctx);
@@ -958,6 +958,76 @@ static int send_next_delayed_frame(H264Context *h, AVFrame
*dst_frame,
return buf_index;
}
+static uint8_t imm5_chunk0[] =
+{
+ 0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x80, 0x1E, 0xF4, 0xB, 0xF, 0x88,
+};
+
+static uint8_t imm5_chunk1[] =
+{
+ 0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x80, 0x1E, 0xF4, 0x5, 0x83, 0xE2,
+};
+
+static uint8_t imm5_chunk2[] =
+{
+ 0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x80, 0x1E, 0xF4, 0x5, 0x81, 0xE8,
0x80,
+};
+
+static uint8_t imm5_chunk3[] =
+{
+ 0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x80, 0x1E, 0xF4, 0xB, 0x4, 0xA2,
+};
+
+static uint8_t imm5_chunk4[] =
+{
+ 0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x80, 0x1E, 0xF4, 0x5, 0x81, 0x28,
0x80,
+};
+
+static uint8_t imm5_chunk5[] =
+{
+ 0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x80, 0x1E, 0xF4, 0x5, 0x80, 0x92,
0x20,
+};
+
+static uint8_t imm5_chunk6[] =
+{
+ 0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x0, 0x1E, 0x9A, 0x74, 0xB, 0xF, 0xC8,
+};
+
+static uint8_t imm5_chunk7[] =
+{
+ 0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x0, 0x1E, 0x9A, 0x74, 0x5, 0x83, 0xF2,
+};
+
+static uint8_t imm5_chunk8[] =
+{
+ 0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x0, 0x1E, 0x9A, 0x74, 0x5, 0x81,
0xEC, 0x80,
+};
+
+static uint8_t imm5_chunk9[] =
+{
+ 0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x0, 0x1E, 0x9A, 0x74, 0xB, 0x4, 0xB2,
+};
+
+static uint8_t imm5_chunk10[] =
+{
+ 0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x0, 0x1E, 0x9A, 0x74, 0x5, 0x81,
0x2C, 0x80,
+};
+
+static uint8_t imm5_chunk11[] =
+{
+ 0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x0, 0x1E, 0x9A, 0x74, 0x5, 0x80,
0x93, 0x20,
+};
+
+static uint8_t imm5_chunkX[] =
+{
+ 0x00, 0x00, 0x00, 0x01, 0x68, 0xDE, 0x3C, 0x80,
+};
+
+static uint8_t imm5_chunkY[] =
+{
+ 0x00, 0x00, 0x00, 0x01, 0x68, 0xCE, 0x32, 0x28,
+};
+
static int h264_decode_frame(AVCodecContext *avctx, void *data,
int *got_frame, AVPacket *avpkt)
{
@@ -968,6 +1038,21 @@ static int h264_decode_frame(AVCodecContext *avctx, void
*data,
int buf_index;
int ret;
+ if (avctx->codec_id == AV_CODEC_ID_IMM5) {
+ if (avpkt->size > 24) {
+ int offset;
+
+ av_fast_padded_malloc(&h->imm5_buffer, &h->imm5_buffer_size,
buf_size);
+ memcpy(h->imm5_buffer, imm5_chunk0, sizeof(imm5_chunk0));
+ offset = sizeof(imm5_chunk0);
+ memcpy(h->imm5_buffer + offset, imm5_chunkX, sizeof(imm5_chunkX));
+ offset += sizeof(imm5_chunkX);
+ memcpy(h->imm5_buffer + offset, avpkt->data + 24, buf_size - 24);
+ buf = h->imm5_buffer;
+ buf_size = buf_size - 24 + offset;
+ }
+ }
+
h->flags = avctx->flags;
h->setup_finished = 0;
h->nb_slice_ctx_queued = 0;
@@ -1090,3 +1175,19 @@ AVCodec ff_h264_decoder = {
.profiles = NULL_IF_CONFIG_SMALL(ff_h264_profiles),
.priv_class = &h264_class,
};
+
+AVCodec ff_imm5_decoder = {
+ .name = "imm5",
+ .long_name = NULL_IF_CONFIG_SMALL("Infinity IMM5"),
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_IMM5,
+ .priv_data_size = sizeof(H264Context),
+ .init = h264_decode_init,
+ .close = h264_decode_end,
+ .decode = h264_decode_frame,
+ .capabilities = /*AV_CODEC_CAP_DRAW_HORIZ_BAND |*/
AV_CODEC_CAP_DR1 |
+ AV_CODEC_CAP_DELAY,
+ .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE |
FF_CODEC_CAP_EXPORTS_CROPPING,
+ .flush = flush_dpb,
+ .profiles = NULL_IF_CONFIG_SMALL(ff_h264_profiles),
+};
diff --git a/libavcodec/h264dec.h b/libavcodec/h264dec.h
index 1d9723260d..1e72781b3f 100644
--- a/libavcodec/h264dec.h
+++ b/libavcodec/h264dec.h
@@ -353,6 +353,9 @@ typedef struct H264Context {
H2645Packet pkt;
+ uint8_t *imm5_buffer;
+ int imm5_buffer_size;
+
int pixel_shift; ///< 0 for 8-bit H.264, 1 for high-bit-depth H.264
/* coded dimensions -- 16 * mb w/h */
diff --git a/libavformat/riff.c b/libavformat/riff.c
index 3907e1a9f3..583c0158d8 100644
--- a/libavformat/riff.c
+++ b/libavformat/riff.c
@@ -475,6 +475,7 @@ const AVCodecTag ff_codec_bmp_tags[] = {
{ AV_CODEC_ID_MWSC, MKTAG('M', 'W', 'S', 'C') },
{ AV_CODEC_ID_WCMV, MKTAG('W', 'C', 'M', 'V') },
{ AV_CODEC_ID_RASC, MKTAG('R', 'A', 'S', 'C') },
+ { AV_CODEC_ID_IMM5, MKTAG('I', 'M', 'M', '5') },
{ AV_CODEC_ID_NONE, 0 }
};
--
2.17.1
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