* Ut Video decoder
*/
+#include <inttypes.h>
#include <stdlib.h>
#include "libavutil/intreadwrite.h"
#include "avcodec.h"
+#include "bswapdsp.h"
#include "bytestream.h"
#include "get_bits.h"
-#include "dsputil.h"
#include "thread.h"
-
-enum {
- PRED_NONE = 0,
- PRED_LEFT,
- PRED_GRADIENT,
- PRED_MEDIAN,
-};
-
-typedef struct UtvideoContext {
- AVCodecContext *avctx;
- AVFrame pic;
- DSPContext dsp;
-
- uint32_t frame_info_size, flags, frame_info;
- int planes;
- int slices;
- int compression;
- int interlaced;
- int frame_pred;
-
- uint8_t *slice_bits;
- int slice_bits_size;
-} UtvideoContext;
-
-typedef struct HuffEntry {
- uint8_t sym;
- uint8_t len;
-} HuffEntry;
-
-static int huff_cmp(const void *a, const void *b)
-{
- const HuffEntry *aa = a, *bb = b;
- return (aa->len - bb->len)*256 + aa->sym - bb->sym;
-}
+#include "utvideo.h"
static int build_huff(const uint8_t *src, VLC *vlc, int *fsym)
{
he[i].sym = i;
he[i].len = *src++;
}
- qsort(he, 256, sizeof(*he), huff_cmp);
+ qsort(he, 256, sizeof(*he), ff_ut_huff_cmp_len);
if (!he[0].len) {
*fsym = he[0].sym;
}
static int decode_plane(UtvideoContext *c, int plane_no,
- uint8_t *dst, int step, int stride,
+ uint8_t *dst, int step, ptrdiff_t stride,
int width, int height,
const uint8_t *src, int use_pred)
{
VLC vlc;
GetBitContext gb;
int prev, fsym;
- const int cmask = ~(!plane_no && c->avctx->pix_fmt == PIX_FMT_YUV420P);
+ const int cmask = ~(!plane_no && c->avctx->pix_fmt == AV_PIX_FMT_YUV420P);
if (build_huff(src, &vlc, &fsym)) {
av_log(c->avctx, AV_LOG_ERROR, "Cannot build Huffman codes\n");
slice_size = slice_data_end - slice_data_start;
if (!slice_size) {
- for (j = sstart; j < send; j++) {
- for (i = 0; i < width * step; i += step)
- dest[i] = 0x80;
- dest += stride;
- }
- continue;
+ av_log(c->avctx, AV_LOG_ERROR, "Plane has more than one symbol "
+ "yet a slice has a length of zero.\n");
+ goto fail;
}
memcpy(c->slice_bits, src + slice_data_start + c->slices * 4,
slice_size);
- memset(c->slice_bits + slice_size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
- c->dsp.bswap_buf((uint32_t *) c->slice_bits, (uint32_t *) c->slice_bits,
- (slice_data_end - slice_data_start + 3) >> 2);
+ memset(c->slice_bits + slice_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
+ c->bdsp.bswap_buf((uint32_t *) c->slice_bits,
+ (uint32_t *) c->slice_bits,
+ (slice_data_end - slice_data_start + 3) >> 2);
init_get_bits(&gb, c->slice_bits, slice_size * 8);
prev = 0x80;
return AVERROR_INVALIDDATA;
}
-static const int rgb_order[4] = { 1, 2, 0, 3 };
-
-static void restore_rgb_planes(uint8_t *src, int step, int stride, int width,
- int height)
+static void restore_rgb_planes(uint8_t *src, int step, ptrdiff_t stride,
+ int width, int height)
{
int i, j;
uint8_t r, g, b;
}
}
-static void restore_median(uint8_t *src, int step, int stride,
+static void restore_median(uint8_t *src, int step, ptrdiff_t stride,
int width, int height, int slices, int rmode)
{
int i, j, slice;
slice_start = ((slice * height) / slices) & cmask;
slice_height = ((((slice + 1) * height) / slices) & cmask) -
slice_start;
+ if (!slice_height)
+ continue;
bsrc = src + slice_start * stride;
* so restoring function should take care of possible padding between
* two parts of the same "line".
*/
-static void restore_median_il(uint8_t *src, int step, int stride,
+static void restore_median_il(uint8_t *src, int step, ptrdiff_t stride,
int width, int height, int slices, int rmode)
{
int i, j, slice;
uint8_t *bsrc;
int slice_start, slice_height;
const int cmask = ~(rmode ? 3 : 1);
- const int stride2 = stride << 1;
+ const ptrdiff_t stride2 = stride << 1;
for (slice = 0; slice < slices; slice++) {
slice_start = ((slice * height) / slices) & cmask;
slice_height = ((((slice + 1) * height) / slices) & cmask) -
slice_start;
slice_height >>= 1;
+ if (!slice_height)
+ continue;
bsrc = src + slice_start * stride;
}
}
-static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
+static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
AVPacket *avpkt)
{
const uint8_t *buf = avpkt->data;
int plane_size, max_slice_size = 0, slice_start, slice_end, slice_size;
int ret;
GetByteContext gb;
+ ThreadFrame frame = { .f = data };
- if (c->pic.data[0])
- ff_thread_release_buffer(avctx, &c->pic);
-
- c->pic.reference = 1;
- c->pic.buffer_hints = FF_BUFFER_HINTS_VALID;
- if ((ret = ff_thread_get_buffer(avctx, &c->pic)) < 0) {
+ if ((ret = ff_thread_get_buffer(avctx, &frame, 0)) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return ret;
}
for (j = 0; j < c->slices; j++) {
slice_end = bytestream2_get_le32u(&gb);
slice_size = slice_end - slice_start;
- if (slice_end <= 0 || slice_size <= 0 ||
+ if (slice_end < 0 || slice_size < 0 ||
bytestream2_get_bytes_left(&gb) < slice_end) {
av_log(avctx, AV_LOG_ERROR, "Incorrect slice size\n");
return AVERROR_INVALIDDATA;
return AVERROR_INVALIDDATA;
}
c->frame_info = bytestream2_get_le32u(&gb);
- av_log(avctx, AV_LOG_DEBUG, "frame information flags %X\n", c->frame_info);
+ av_log(avctx, AV_LOG_DEBUG, "frame information flags %"PRIX32"\n",
+ c->frame_info);
c->frame_pred = (c->frame_info >> 8) & 3;
if (c->frame_pred == PRED_GRADIENT) {
- av_log_ask_for_sample(avctx, "Frame uses gradient prediction\n");
+ avpriv_request_sample(avctx, "Frame with gradient prediction");
return AVERROR_PATCHWELCOME;
}
av_fast_malloc(&c->slice_bits, &c->slice_bits_size,
- max_slice_size + FF_INPUT_BUFFER_PADDING_SIZE);
+ max_slice_size + AV_INPUT_BUFFER_PADDING_SIZE);
if (!c->slice_bits) {
av_log(avctx, AV_LOG_ERROR, "Cannot allocate temporary buffer\n");
}
switch (c->avctx->pix_fmt) {
- case PIX_FMT_RGB24:
- case PIX_FMT_RGBA:
+ case AV_PIX_FMT_RGB24:
+ case AV_PIX_FMT_RGBA:
for (i = 0; i < c->planes; i++) {
- ret = decode_plane(c, i, c->pic.data[0] + rgb_order[i], c->planes,
- c->pic.linesize[0], avctx->width, avctx->height,
- plane_start[i], c->frame_pred == PRED_LEFT);
+ ret = decode_plane(c, i, frame.f->data[0] + ff_ut_rgb_order[i],
+ c->planes, frame.f->linesize[0], avctx->width,
+ avctx->height, plane_start[i],
+ c->frame_pred == PRED_LEFT);
if (ret)
return ret;
if (c->frame_pred == PRED_MEDIAN) {
if (!c->interlaced) {
- restore_median(c->pic.data[0] + rgb_order[i], c->planes,
- c->pic.linesize[0], avctx->width,
+ restore_median(frame.f->data[0] + ff_ut_rgb_order[i],
+ c->planes, frame.f->linesize[0], avctx->width,
avctx->height, c->slices, 0);
} else {
- restore_median_il(c->pic.data[0] + rgb_order[i], c->planes,
- c->pic.linesize[0], avctx->width,
- avctx->height, c->slices, 0);
+ restore_median_il(frame.f->data[0] + ff_ut_rgb_order[i],
+ c->planes, frame.f->linesize[0],
+ avctx->width, avctx->height, c->slices,
+ 0);
}
}
}
- restore_rgb_planes(c->pic.data[0], c->planes, c->pic.linesize[0],
+ restore_rgb_planes(frame.f->data[0], c->planes, frame.f->linesize[0],
avctx->width, avctx->height);
break;
- case PIX_FMT_YUV420P:
+ case AV_PIX_FMT_YUV420P:
for (i = 0; i < 3; i++) {
- ret = decode_plane(c, i, c->pic.data[i], 1, c->pic.linesize[i],
+ ret = decode_plane(c, i, frame.f->data[i], 1, frame.f->linesize[i],
avctx->width >> !!i, avctx->height >> !!i,
plane_start[i], c->frame_pred == PRED_LEFT);
if (ret)
return ret;
if (c->frame_pred == PRED_MEDIAN) {
if (!c->interlaced) {
- restore_median(c->pic.data[i], 1, c->pic.linesize[i],
+ restore_median(frame.f->data[i], 1, frame.f->linesize[i],
avctx->width >> !!i, avctx->height >> !!i,
c->slices, !i);
} else {
- restore_median_il(c->pic.data[i], 1, c->pic.linesize[i],
+ restore_median_il(frame.f->data[i], 1, frame.f->linesize[i],
avctx->width >> !!i,
avctx->height >> !!i,
c->slices, !i);
}
}
break;
- case PIX_FMT_YUV422P:
+ case AV_PIX_FMT_YUV422P:
for (i = 0; i < 3; i++) {
- ret = decode_plane(c, i, c->pic.data[i], 1, c->pic.linesize[i],
+ ret = decode_plane(c, i, frame.f->data[i], 1, frame.f->linesize[i],
avctx->width >> !!i, avctx->height,
plane_start[i], c->frame_pred == PRED_LEFT);
if (ret)
return ret;
if (c->frame_pred == PRED_MEDIAN) {
if (!c->interlaced) {
- restore_median(c->pic.data[i], 1, c->pic.linesize[i],
+ restore_median(frame.f->data[i], 1, frame.f->linesize[i],
avctx->width >> !!i, avctx->height,
c->slices, 0);
} else {
- restore_median_il(c->pic.data[i], 1, c->pic.linesize[i],
+ restore_median_il(frame.f->data[i], 1, frame.f->linesize[i],
avctx->width >> !!i, avctx->height,
c->slices, 0);
}
break;
}
- c->pic.key_frame = 1;
- c->pic.pict_type = AV_PICTURE_TYPE_I;
- c->pic.interlaced_frame = !!c->interlaced;
+ frame.f->key_frame = 1;
+ frame.f->pict_type = AV_PICTURE_TYPE_I;
+ frame.f->interlaced_frame = !!c->interlaced;
- *data_size = sizeof(AVFrame);
- *(AVFrame*)data = c->pic;
+ *got_frame = 1;
/* always report that the buffer was completely consumed */
return buf_size;
c->avctx = avctx;
- ff_dsputil_init(&c->dsp, avctx);
+ ff_bswapdsp_init(&c->bdsp);
if (avctx->extradata_size < 16) {
av_log(avctx, AV_LOG_ERROR,
av_log(avctx, AV_LOG_DEBUG, "Encoder version %d.%d.%d.%d\n",
avctx->extradata[3], avctx->extradata[2],
avctx->extradata[1], avctx->extradata[0]);
- av_log(avctx, AV_LOG_DEBUG, "Original format %X\n",
+ av_log(avctx, AV_LOG_DEBUG, "Original format %"PRIX32"\n",
AV_RB32(avctx->extradata + 4));
c->frame_info_size = AV_RL32(avctx->extradata + 8);
c->flags = AV_RL32(avctx->extradata + 12);
if (c->frame_info_size != 4)
- av_log_ask_for_sample(avctx, "Frame info is not 4 bytes\n");
- av_log(avctx, AV_LOG_DEBUG, "Encoding parameters %08X\n", c->flags);
+ avpriv_request_sample(avctx, "Frame info not 4 bytes");
+ av_log(avctx, AV_LOG_DEBUG, "Encoding parameters %08"PRIX32"\n", c->flags);
c->slices = (c->flags >> 24) + 1;
c->compression = c->flags & 1;
c->interlaced = c->flags & 0x800;
switch (avctx->codec_tag) {
case MKTAG('U', 'L', 'R', 'G'):
c->planes = 3;
- avctx->pix_fmt = PIX_FMT_RGB24;
+ avctx->pix_fmt = AV_PIX_FMT_RGB24;
break;
case MKTAG('U', 'L', 'R', 'A'):
c->planes = 4;
- avctx->pix_fmt = PIX_FMT_RGBA;
+ avctx->pix_fmt = AV_PIX_FMT_RGBA;
break;
case MKTAG('U', 'L', 'Y', '0'):
c->planes = 3;
- avctx->pix_fmt = PIX_FMT_YUV420P;
+ avctx->pix_fmt = AV_PIX_FMT_YUV420P;
+ avctx->colorspace = AVCOL_SPC_BT470BG;
break;
case MKTAG('U', 'L', 'Y', '2'):
c->planes = 3;
- avctx->pix_fmt = PIX_FMT_YUV422P;
+ avctx->pix_fmt = AV_PIX_FMT_YUV422P;
+ avctx->colorspace = AVCOL_SPC_BT470BG;
+ break;
+ case MKTAG('U', 'L', 'H', '0'):
+ c->planes = 3;
+ avctx->pix_fmt = AV_PIX_FMT_YUV420P;
+ avctx->colorspace = AVCOL_SPC_BT709;
+ break;
+ case MKTAG('U', 'L', 'H', '2'):
+ c->planes = 3;
+ avctx->pix_fmt = AV_PIX_FMT_YUV422P;
+ avctx->colorspace = AVCOL_SPC_BT709;
break;
default:
av_log(avctx, AV_LOG_ERROR, "Unknown Ut Video FOURCC provided (%08X)\n",
{
UtvideoContext * const c = avctx->priv_data;
- if (c->pic.data[0])
- ff_thread_release_buffer(avctx, &c->pic);
-
av_freep(&c->slice_bits);
return 0;
AVCodec ff_utvideo_decoder = {
.name = "utvideo",
+ .long_name = NULL_IF_CONFIG_SMALL("Ut Video"),
.type = AVMEDIA_TYPE_VIDEO,
.id = AV_CODEC_ID_UTVIDEO,
.priv_data_size = sizeof(UtvideoContext),
.init = decode_init,
.close = decode_end,
.decode = decode_frame,
- .capabilities = CODEC_CAP_DR1 | CODEC_CAP_FRAME_THREADS,
- .long_name = NULL_IF_CONFIG_SMALL("Ut Video"),
+ .capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS,
};
projects / ffmpeg / blobdiff