virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-23 12:43:46 +02:00
Code Issues Releases Activity

DXV decoder

Browse Source 
Support all DXDI and DXD3 normal quality videos.
This commit is contained in:
Vittorio Giovara 2015-08-26 11:31:41 +02:00
parent 0c7707610f
commit c45fcf30cf
14 changed files with 494 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
Changelog
View File

@ -42,6 +42,7 @@ version <next>:
- bitstream filter for converting HEVC from MP4 to Annex B
- Intel QSV-accelerated MPEG-2 video and HEVC decoding
- Support DNx100 (1440x1080@8)
- DXV decoding
version 11:

1
configure vendored
View File

@ -1841,6 +1841,7 @@ dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixbloc
dvvideo_decoder_select="dvprofile idctdsp"
dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
dxa_decoder_deps="zlib"
dxv_decoder_select="lzf texturedsp"
eac3_decoder_select="ac3_decoder"
eac3_encoder_select="ac3_encoder"
eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"

1
doc/general.texi
View File

@ -399,6 +399,7 @@ library:
@item RealMedia @tab X @tab X
@item Redirector @tab @tab X
@item Renderware TeXture Dictionary @tab @tab X
@item Resolume DXV @tab @tab X
@item RL2 @tab @tab X
@tab Audio and video format used in some games by Entertainment Software Partners.
@item RPL/ARMovie @tab @tab X

1
libavcodec/Makefile
View File

@ -196,6 +196,7 @@ OBJS-$(CONFIG_DVVIDEO_DECODER) += dvdec.o dv.o dvdata.o
OBJS-$(CONFIG_DVVIDEO_ENCODER) += dvenc.o dv.o dvdata.o
OBJS-$(CONFIG_DXA_DECODER) += dxa.o
OBJS-$(CONFIG_DXTORY_DECODER) += dxtory.o
OBJS-$(CONFIG_DXV_DECODER) += dxv.o
OBJS-$(CONFIG_EAC3_DECODER) += eac3dec.o eac3_data.o
OBJS-$(CONFIG_EAC3_ENCODER) += eac3enc.o eac3_data.o
OBJS-$(CONFIG_EACMV_DECODER) += eacmv.o

1
libavcodec/allcodecs.c
View File

@ -142,6 +142,7 @@ void avcodec_register_all(void)
REGISTER_ENCDEC (DVVIDEO, dvvideo);
REGISTER_DECODER(DXA, dxa);
REGISTER_DECODER(DXTORY, dxtory);
REGISTER_DECODER(DXV, dxv);
REGISTER_DECODER(EACMV, eacmv);
REGISTER_DECODER(EAMAD, eamad);
REGISTER_DECODER(EATGQ, eatgq);

1
libavcodec/avcodec.h
View File

@ -298,6 +298,7 @@ enum AVCodecID {
AV_CODEC_ID_HQ_HQA,
AV_CODEC_ID_HAP,
AV_CODEC_ID_DDS,
AV_CODEC_ID_DXV,
/* various PCM "codecs" */
AV_CODEC_ID_FIRST_AUDIO = 0x10000, ///< A dummy id pointing at the start of audio codecs

461
libavcodec/dxv.c Normal file
View File

@ -0,0 +1,461 @@
/*
* Resolume DXV decoder
* Copyright (C) 2015 Vittorio Giovara <vittorio.giovara@gmail.com>
*
* This file is part of Libav.
*
* Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdint.h>
#include "libavutil/imgutils.h"
#include "avcodec.h"
#include "bytestream.h"
#include "internal.h"
#include "lzf.h"
#include "texturedsp.h"
#include "thread.h"
typedef struct DXVContext {
TextureDSPContext texdsp;
GetByteContext gbc;
uint8_t *tex_data; // Compressed texture
int tex_rat; // Compression ratio
int tex_step; // Distance between blocks
int64_t tex_size; // Texture size
/* Optimal number of slices for parallel decoding */
int slice_count;
/* Pointer to the selected decompression function */
int (*tex_funct)(uint8_t *dst, ptrdiff_t stride, const uint8_t *block);
} DXVContext;
static int decompress_texture_thread(AVCodecContext *avctx, void *arg,
int slice, int thread_nb)
{
DXVContext *ctx = avctx->priv_data;
AVFrame *frame = arg;
const uint8_t *d = ctx->tex_data;
int w_block = avctx->coded_width / TEXTURE_BLOCK_W;
int h_block = avctx->coded_height / TEXTURE_BLOCK_H;
int x, y;
int start_slice, end_slice;
int base_blocks_per_slice = h_block / ctx->slice_count;
int remainder_blocks = h_block % ctx->slice_count;
/* When the frame height (in blocks) doesn't divide evenly between the
* number of slices, spread the remaining blocks evenly between the first
* operations */
start_slice = slice * base_blocks_per_slice;
/* Add any extra blocks (one per slice) that have been added
* before this slice */
start_slice += FFMIN(slice, remainder_blocks);
end_slice = start_slice + base_blocks_per_slice;
/* Add an extra block if there are remainder blocks to be accounted for */
if (slice < remainder_blocks)
end_slice++;
for (y = start_slice; y < end_slice; y++) {
uint8_t *p = frame->data[0] + y * frame->linesize[0] * TEXTURE_BLOCK_H;
int off = y * w_block;
for (x = 0; x < w_block; x++) {
ctx->tex_funct(p + x * 16, frame->linesize[0],
d + (off + x) * ctx->tex_step);
}
}
return 0;
}
/* This scheme addresses already decoded elements depending on 2-bit status:
* 0 -> copy new element
* 1 -> copy one element from position -x
* 2 -> copy one element from position -(get_byte() + 2) * x
* 3 -> copy one element from position -(get_16le() + 0x102) * x
* x is always 2 for dxt1 and 4 for dxt5. */
#define CHECKPOINT(x) \
do { \
if (state == 0) { \
value = bytestream2_get_le32(gbc); \
state = 16; \
} \
op = value & 0x3; \
value >>= 2; \
state--; \
switch (op) { \
case 1: \
idx = x; \
break; \
case 2: \
idx = (bytestream2_get_byte(gbc) + 2) * x; \
break; \
case 3: \
idx = (bytestream2_get_le16(gbc) + 0x102) * x; \
break; \
} \
} while(0)
static int dxv_decompress_dxt1(AVCodecContext *avctx)
{
DXVContext *ctx = avctx->priv_data;
GetByteContext *gbc = &ctx->gbc;
uint32_t value, prev, op;
int idx = 0, state = 0;
int pos = 2;
/* Copy the first two elements */
AV_WL32(ctx->tex_data, bytestream2_get_le32(gbc));
AV_WL32(ctx->tex_data + 4, bytestream2_get_le32(gbc));
/* Process input until the whole texture has been filled */
while (pos < ctx->tex_size / 4) {
CHECKPOINT(2);
/* Copy two elements from a previous offset or from the input buffer */
if (op) {
prev = AV_RL32(ctx->tex_data + 4 * (pos - idx));
AV_WL32(ctx->tex_data + 4 * pos, prev);
pos++;
prev = AV_RL32(ctx->tex_data + 4 * (pos - idx));
AV_WL32(ctx->tex_data + 4 * pos, prev);
pos++;
} else {
CHECKPOINT(2);
if (op)
prev = AV_RL32(ctx->tex_data + 4 * (pos - idx));
else
prev = bytestream2_get_le32(gbc);
AV_WL32(ctx->tex_data + 4 * pos, prev);
pos++;
CHECKPOINT(2);
if (op)
prev = AV_RL32(ctx->tex_data + 4 * (pos - idx));
else
prev = bytestream2_get_le32(gbc);
AV_WL32(ctx->tex_data + 4 * pos, prev);
pos++;
}
}
return 0;
}
static int dxv_decompress_dxt5(AVCodecContext *avctx)
{
DXVContext *ctx = avctx->priv_data;
GetByteContext *gbc = &ctx->gbc;
uint32_t value, op;
int idx, prev, state = 0;
int pos = 4;
int run = 0;
int probe, check;
/* Copy the first four elements */
AV_WL32(ctx->tex_data + 0, bytestream2_get_le32(gbc));
AV_WL32(ctx->tex_data + 4, bytestream2_get_le32(gbc));
AV_WL32(ctx->tex_data + 8, bytestream2_get_le32(gbc));
AV_WL32(ctx->tex_data + 12, bytestream2_get_le32(gbc));
/* Process input until the whole texture has been filled */
while (pos < ctx->tex_size / 4) {
if (run) {
run--;
prev = AV_RL32(ctx->tex_data + 4 * (pos - 4));
AV_WL32(ctx->tex_data + 4 * pos, prev);
pos++;
prev = AV_RL32(ctx->tex_data + 4 * (pos - 4));
AV_WL32(ctx->tex_data + 4 * pos, prev);
pos++;
} else {
if (state == 0) {
value = bytestream2_get_le32(gbc);
state = 16;
}
op = value & 0x3;
value >>= 2;
state--;
switch (op) {
case 0:
/* Long copy */
check = bytestream2_get_byte(gbc) + 1;
if (check == 256) {
do {
probe = bytestream2_get_le16(gbc);
check += probe;
} while (probe == 0xFFFF);
}
while (check && pos < ctx->tex_size / 4) {
prev = AV_RL32(ctx->tex_data + 4 * (pos - 4));
AV_WL32(ctx->tex_data + 4 * pos, prev);
pos++;
prev = AV_RL32(ctx->tex_data + 4 * (pos - 4));
AV_WL32(ctx->tex_data + 4 * pos, prev);
pos++;
prev = AV_RL32(ctx->tex_data + 4 * (pos - 4));
AV_WL32(ctx->tex_data + 4 * pos, prev);
pos++;
prev = AV_RL32(ctx->tex_data + 4 * (pos - 4));
AV_WL32(ctx->tex_data + 4 * pos, prev);
pos++;
check--;
}
/* Restart (or exit) the loop */
continue;
break;
case 1:
/* Load new run value */
run = bytestream2_get_byte(gbc);
if (run == 255) {
do {
probe = bytestream2_get_le16(gbc);
run += probe;
} while (probe == 0xFFFF);
}
/* Copy two dwords from previous data */
prev = AV_RL32(ctx->tex_data + 4 * (pos - 4));
AV_WL32(ctx->tex_data + 4 * pos, prev);
pos++;
prev = AV_RL32(ctx->tex_data + 4 * (pos - 4));
AV_WL32(ctx->tex_data + 4 * pos, prev);
pos++;
break;
case 2:
/* Copy two dwords from a previous index */
idx = 8 + bytestream2_get_le16(gbc);
prev = AV_RL32(ctx->tex_data + 4 * (pos - idx));
AV_WL32(ctx->tex_data + 4 * pos, prev);
pos++;
prev = AV_RL32(ctx->tex_data + 4 * (pos - idx));
AV_WL32(ctx->tex_data + 4 * pos, prev);
pos++;
break;
case 3:
/* Copy two dwords from input */
prev = bytestream2_get_le32(gbc);
AV_WL32(ctx->tex_data + 4 * pos, prev);
pos++;
prev = bytestream2_get_le32(gbc);
AV_WL32(ctx->tex_data + 4 * pos, prev);
pos++;
break;
}
}
CHECKPOINT(4);
/* Copy two elements from a previous offset or from the input buffer */
if (op) {
prev = AV_RL32(ctx->tex_data + 4 * (pos - idx));
AV_WL32(ctx->tex_data + 4 * pos, prev);
pos++;
prev = AV_RL32(ctx->tex_data + 4 * (pos - idx));
AV_WL32(ctx->tex_data + 4 * pos, prev);
pos++;
} else {
CHECKPOINT(4);
if (op)
prev = AV_RL32(ctx->tex_data + 4 * (pos - idx));
else
prev = bytestream2_get_le32(gbc);
AV_WL32(ctx->tex_data + 4 * pos, prev);
pos++;
CHECKPOINT(4);
if (op)
prev = AV_RL32(ctx->tex_data + 4 * (pos - idx));
else
prev = bytestream2_get_le32(gbc);
AV_WL32(ctx->tex_data + 4 * pos, prev);
pos++;
}
}
return 0;
}
static int dxv_decompress_lzf(AVCodecContext *avctx)
{
DXVContext *ctx = avctx->priv_data;
return ff_lzf_uncompress(&ctx->gbc, &ctx->tex_data, &ctx->tex_size);
}
static int dxv_decode(AVCodecContext *avctx, void *data,
int *got_frame, AVPacket *avpkt)
{
DXVContext *ctx = avctx->priv_data;
ThreadFrame tframe;
GetByteContext *gbc = &ctx->gbc;
int (*decompress_tex)(AVCodecContext *avctx);
uint32_t tag;
int channels, size = 0, old_type = 0;
int ret;
bytestream2_init(gbc, avpkt->data, avpkt->size);
tag = bytestream2_get_le32(gbc);
switch (tag) {
case MKBETAG('D', 'X', 'T', '1'):
decompress_tex = dxv_decompress_dxt1;
ctx->tex_funct = ctx->texdsp.dxt1_block;
ctx->tex_rat = 8;
ctx->tex_step = 8;
av_log(avctx, AV_LOG_DEBUG, "DXTR1 compression and DXT1 texture ");
break;
case MKBETAG('D', 'X', 'T', '5'):
decompress_tex = dxv_decompress_dxt5;
ctx->tex_funct = ctx->texdsp.dxt5_block;
ctx->tex_rat = 4;
ctx->tex_step = 16;
av_log(avctx, AV_LOG_DEBUG, "DXTR5 compression and DXT5 texture ");
break;
case MKBETAG('Y', 'C', 'G', '6'):
case MKBETAG('Y', 'G', '1', '0'):
avpriv_report_missing_feature(avctx, "Tag 0x%08X", tag);
return AVERROR_PATCHWELCOME;
default:
/* Old version does not have a real header, just size and type. */
size = tag & 0x00FFFFFF;
old_type = tag >> 24;
channels = old_type & 0x0F;
if (old_type & 0x40) {
av_log(avctx, AV_LOG_DEBUG, "LZF compression and DXT5 texture ");
ctx->tex_funct = ctx->texdsp.dxt5_block;
ctx->tex_step = 16;
} else if (old_type & 0x20) {
av_log(avctx, AV_LOG_DEBUG, "LZF compression and DXT1 texture ");
ctx->tex_funct = ctx->texdsp.dxt1_block;
ctx->tex_step = 8;
} else {
av_log(avctx, AV_LOG_ERROR, "Unsupported header (0x%08X)\n.", tag);
return AVERROR_INVALIDDATA;
}
decompress_tex = dxv_decompress_lzf;
ctx->tex_rat = 1;
break;
}
/* New header is 12 bytes long. */
if (!old_type) {
channels = bytestream2_get_byte(gbc);
bytestream2_skip(gbc, 3); // unknown
size = bytestream2_get_le32(gbc);
}
av_log(avctx, AV_LOG_DEBUG, "(%d channels)\n", channels);
if (size != bytestream2_get_bytes_left(gbc)) {
av_log(avctx, AV_LOG_ERROR, "Incomplete or invalid file (%u > %u)\n.",
size, bytestream2_get_bytes_left(gbc));
return AVERROR_INVALIDDATA;
}
ctx->tex_size = avctx->coded_width * avctx->coded_height * 4 / ctx->tex_rat;
ret = av_reallocp(&ctx->tex_data, ctx->tex_size);
if (ret < 0)
return ret;
/* Decompress texture out of the intermediate compression. */
ret = decompress_tex(avctx);
if (ret < 0)
return ret;
tframe.f = data;
ret = ff_thread_get_buffer(avctx, &tframe, 0);
if (ret < 0)
return ret;
ff_thread_finish_setup(avctx);
/* Now decompress the texture with the standard functions. */
avctx->execute2(avctx, decompress_texture_thread,
tframe.f, NULL, ctx->slice_count);
/* Frame is ready to be output. */
tframe.f->pict_type = AV_PICTURE_TYPE_I;
tframe.f->key_frame = 1;
*got_frame = 1;
return avpkt->size;
}
static int dxv_init(AVCodecContext *avctx)
{
DXVContext *ctx = avctx->priv_data;
int ret = av_image_check_size(avctx->width, avctx->height, 0, avctx);
if (ret < 0) {
av_log(avctx, AV_LOG_ERROR, "Invalid image size %dx%d.\n",
avctx->width, avctx->height);
return ret;
}
/* Codec requires 16x16 alignment. */
avctx->coded_width = FFALIGN(avctx->width, 16);
avctx->coded_height = FFALIGN(avctx->height, 16);
ff_texturedsp_init(&ctx->texdsp);
avctx->pix_fmt = AV_PIX_FMT_RGBA;
ctx->slice_count = av_clip(avctx->thread_count, 1,
avctx->coded_height / TEXTURE_BLOCK_H);
return 0;
}
static int dxv_close(AVCodecContext *avctx)
{
DXVContext *ctx = avctx->priv_data;
av_freep(&ctx->tex_data);
return 0;
}
AVCodec ff_dxv_decoder = {
.name = "dxv",
.long_name = NULL_IF_CONFIG_SMALL("Resolume DXV"),
.type = AVMEDIA_TYPE_VIDEO,
.id = AV_CODEC_ID_DXV,
.init = dxv_init,
.decode = dxv_decode,
.close = dxv_close,
.priv_data_size = sizeof(DXVContext),
.capabilities = AV_CODEC_CAP_DR1 |
AV_CODEC_CAP_SLICE_THREADS |
AV_CODEC_CAP_FRAME_THREADS,
.caps_internal = FF_CODEC_CAP_INIT_THREADSAFE |
FF_CODEC_CAP_INIT_CLEANUP,
};

2
libavcodec/version.h
View File

@ -29,7 +29,7 @@
#include "libavutil/version.h"
#define LIBAVCODEC_VERSION_MAJOR 57
#define LIBAVCODEC_VERSION_MINOR 0
#define LIBAVCODEC_VERSION_MINOR 1
#define LIBAVCODEC_VERSION_MICRO 0
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \

3
libavformat/isom.c
View File

@ -254,6 +254,9 @@ const AVCodecTag ff_codec_movvideo_tags[] = {
{ AV_CODEC_ID_HAP, MKTAG('H', 'a', 'p', '5') },
{ AV_CODEC_ID_HAP, MKTAG('H', 'a', 'p', 'Y') },
{ AV_CODEC_ID_DXV, MKTAG('D', 'X', 'D', '3') },
{ AV_CODEC_ID_DXV, MKTAG('D', 'X', 'D', 'I') },
{ AV_CODEC_ID_NONE, 0 },
};

15
tests/fate/video.mak
View File

@ -136,6 +136,21 @@ fate-dxa-scummvm: CMD = framecrc -i $(TARGET_SAMPLES)/dxa/scummvm.dxa -pix_fmt r
FATE_SAMPLES_AVCONV-$(call DEMDEC, DXA, DXA) += $(FATE_DXA)
fate-dxa: $(FATE_DXA)
FATE_DXV += fate-dxv-dxt1
fate-dxv-dxt1: CMD = framecrc -i $(TARGET_SAMPLES)/dxv/dxv-na.mov
FATE_DXV += fate-dxv-dxt5
fate-dxv-dxt5: CMD = framecrc -i $(TARGET_SAMPLES)/dxv/dxv-wa.mov
FATE_DXV += fate-dxv3-dxt1
fate-dxv3-dxt1: CMD = framecrc -i $(TARGET_SAMPLES)/dxv/dxv3-nqna.mov
FATE_DXV += fate-dxv3-dxt5
fate-dxv3-dxt5: CMD = framecrc -i $(TARGET_SAMPLES)/dxv/dxv3-nqwa.mov
FATE_SAMPLES_AVCONV-$(call DEMDEC, MOV, DXV) += $(FATE_DXV)
fate-dxv: $(FATE_DXV)
FATE_SAMPLES_AVCONV-$(call DEMDEC, SEGAFILM, CINEPAK) += fate-film-cvid
fate-film-cvid: CMD = framecrc -i $(TARGET_SAMPLES)/film/logo-capcom.cpk -an

2
tests/ref/fate/dxv-dxt1 Normal file
View File

@ -0,0 +1,2 @@
#tb 0: 1/30000
0, 0, 0, 0, 8294400, 0x0797cd53

2
tests/ref/fate/dxv-dxt5 Normal file
View File

@ -0,0 +1,2 @@
#tb 0: 1/30000
0, 0, 0, 0, 8294400, 0x0797cd53

2
tests/ref/fate/dxv3-dxt1 Normal file
View File

@ -0,0 +1,2 @@
#tb 0: 1/30000
0, 0, 0, 0, 8294400, 0x98bbcc85

2
tests/ref/fate/dxv3-dxt5 Normal file
View File

@ -0,0 +1,2 @@
#tb 0: 1/30000
0, 0, 0, 0, 8294400, 0x0797cd53