#include "libavutil/attributes.h"
#include "libavutil/imgutils.h"
-#include "libavutil/timer.h"
+#include "libavutil/thread.h"
#define BITSTREAM_READER_LE
#include "avcodec.h"
#include "get_bits.h"
#include "internal.h"
-#include "mathops.h"
#include "ivi.h"
#include "ivi_dsp.h"
return 0;
}
-/**
- * Reverse "nbits" bits of the value "val" and return the result
- * in the least significant bits.
- */
-static uint16_t inv_bits(uint16_t val, int nbits)
-{
- uint16_t res;
-
- if (nbits <= 8) {
- res = ff_reverse[val] >> (8 - nbits);
- } else
- res = ((ff_reverse[val & 0xFF] << 8) +
- (ff_reverse[val >> 8])) >> (16 - nbits);
-
- return res;
-}
-
/*
* Generate a huffman codebook from the given descriptor
* and convert it into the FFmpeg VLC table.
if (bits[pos] > IVI_VLC_BITS)
return AVERROR_INVALIDDATA; /* invalid descriptor */
- codewords[pos] = inv_bits((prefix | j), bits[pos]);
+ codewords[pos] = prefix | j;
if (!bits[pos])
bits[pos] = 1;
/* number of codewords = pos */
return init_vlc(vlc, IVI_VLC_BITS, pos, bits, 1, 1, codewords, 2, 2,
- (flag ? INIT_VLC_USE_NEW_STATIC : 0) | INIT_VLC_LE);
+ (flag ? INIT_VLC_USE_NEW_STATIC : 0) | INIT_VLC_OUTPUT_LE);
}
-av_cold void ff_ivi_init_static_vlc(void)
+static av_cold void ivi_init_static_vlc(void)
{
int i;
static VLC_TYPE table_data[8192 * 16][2];
- static int initialized_vlcs = 0;
- if (initialized_vlcs)
- return;
for (i = 0; i < 8; i++) {
ivi_mb_vlc_tabs[i].table = table_data + i * 2 * 8192;
ivi_mb_vlc_tabs[i].table_allocated = 8192;
ivi_create_huff_from_desc(&ivi_blk_huff_desc[i],
&ivi_blk_vlc_tabs[i], 1);
}
- initialized_vlcs = 1;
+}
+
+av_cold void ff_ivi_init_static_vlc(void)
+{
+ static AVOnce init_static_once = AV_ONCE_INIT;
+ ff_thread_once(&init_static_once, ivi_init_static_vlc);
}
/*
int p, b, t;
for (p = 0; p < 3; p++) {
- if (planes[p].bands)
- for (b = 0; b < planes[p].num_bands; b++) {
- av_freep(&planes[p].bands[b].bufs[0]);
- av_freep(&planes[p].bands[b].bufs[1]);
- av_freep(&planes[p].bands[b].bufs[2]);
- av_freep(&planes[p].bands[b].bufs[3]);
-
- if (planes[p].bands[b].blk_vlc.cust_tab.table)
- ff_free_vlc(&planes[p].bands[b].blk_vlc.cust_tab);
- for (t = 0; t < planes[p].bands[b].num_tiles; t++)
- av_freep(&planes[p].bands[b].tiles[t].mbs);
- av_freep(&planes[p].bands[b].tiles);
+ if (planes[p].bands) {
+ for (b = 0; b < planes[p].num_bands; b++) {
+ IVIBandDesc *band = &planes[p].bands[b];
+ av_freep(&band->bufs[0]);
+ av_freep(&band->bufs[1]);
+ av_freep(&band->bufs[2]);
+ av_freep(&band->bufs[3]);
+
+ if (band->blk_vlc.cust_tab.table)
+ ff_free_vlc(&band->blk_vlc.cust_tab);
+ for (t = 0; t < band->num_tiles; t++)
+ av_freep(&band->tiles[t].mbs);
+ av_freep(&band->tiles);
+ }
}
av_freep(&planes[p].bands);
planes[p].num_bands = 0;
band->height = b_height;
band->pitch = width_aligned;
band->aheight = height_aligned;
- band->bufs[0] = av_mallocz(buf_size);
- band->bufs[1] = av_mallocz(buf_size);
+ av_assert0(!band->bufs[0] && !band->bufs[1] &&
+ !band->bufs[2] && !band->bufs[3]);
band->bufsize = buf_size/2;
- if (!band->bufs[0] || !band->bufs[1])
- return AVERROR(ENOMEM);
+ av_assert0(buf_size % 2 == 0);
- /* allocate the 3rd band buffer for scalability mode */
- if (cfg->luma_bands > 1) {
- band->bufs[2] = av_mallocz(buf_size);
- if (!band->bufs[2])
- return AVERROR(ENOMEM);
- }
- if (is_indeo4) {
- band->bufs[3] = av_mallocz(buf_size);
- if (!band->bufs[3])
- return AVERROR(ENOMEM);
- }
/* reset custom vlc */
planes[p].bands[0].blk_vlc.cust_desc.num_rows = 0;
}
t_height = !p ? tile_height : (tile_height + 3) >> 2;
if (!p && planes[0].num_bands == 4) {
+ if (t_width % 2 || t_height % 2) {
+ avpriv_request_sample(NULL, "Odd tiles");
+ return AVERROR_PATCHWELCOME;
+ }
t_width >>= 1;
t_height >>= 1;
}
av_freep(&band->tiles);
band->tiles = av_mallocz_array(band->num_tiles, sizeof(IVITile));
- if (!band->tiles)
+ if (!band->tiles) {
+ band->num_tiles = 0;
return AVERROR(ENOMEM);
+ }
/* use the first luma band as reference for motion vectors
* and quant */
if (get_bits1(gb)) {
len = get_bits(gb, 8);
if (len == 255)
- len = get_bits_long(gb, 24);
+ len = get_bits(gb, 24);
}
/* align the bitstream reader on the byte boundary */
}
}
+static void *prepare_buf(IVI45DecContext *ctx, IVIBandDesc *band, int i)
+{
+ if (ctx->pic_conf.luma_bands <= 1 && i == 2)
+ return NULL;
+ if (!band->bufs[i])
+ band->bufs[i] = av_mallocz(2 * band->bufsize);
+ return band->bufs[i];
+}
+
/**
* Decode an Indeo 4 or 5 band.
*
int result, i, t, idx1, idx2, pos;
IVITile *tile;
- band->buf = band->bufs[ctx->dst_buf];
+ band->buf = prepare_buf(ctx, band, ctx->dst_buf);
if (!band->buf) {
av_log(avctx, AV_LOG_ERROR, "Band buffer points to no data!\n");
return AVERROR_INVALIDDATA;
}
if (ctx->is_indeo4 && ctx->frame_type == IVI4_FRAMETYPE_BIDIR) {
- band->ref_buf = band->bufs[ctx->b_ref_buf];
- band->b_ref_buf = band->bufs[ctx->ref_buf];
+ band->ref_buf = prepare_buf(ctx, band, ctx->b_ref_buf);
+ band->b_ref_buf = prepare_buf(ctx, band, ctx->ref_buf);
+ if (!band->b_ref_buf)
+ return AVERROR(ENOMEM);
} else {
- band->ref_buf = band->bufs[ctx->ref_buf];
+ band->ref_buf = prepare_buf(ctx, band, ctx->ref_buf);
band->b_ref_buf = 0;
}
+ if (!band->ref_buf)
+ return AVERROR(ENOMEM);
band->data_ptr = ctx->frame_data + (get_bits_count(&ctx->gb) >> 3);
result = ctx->decode_band_hdr(ctx, band, avctx);
ctx->switch_buffers(ctx);
- //{ START_TIMER;
-
if (ctx->is_nonnull_frame(ctx)) {
ctx->buf_invalid[ctx->dst_buf] = 1;
for (p = 0; p < 3; p++) {
if (ctx->buf_invalid[ctx->dst_buf])
return -1;
- //STOP_TIMER("decode_planes"); }
-
if (!ctx->is_nonnull_frame(ctx))
return buf_size;
left = get_bits_count(&ctx->gb) & 0x18;
skip_bits_long(&ctx->gb, 64 - left);
if (get_bits_left(&ctx->gb) > 18 &&
- show_bits_long(&ctx->gb, 21) == 0xBFFF8) { // syncheader + inter type
+ show_bits(&ctx->gb, 21) == 0xBFFF8) { // syncheader + inter type
AVPacket pkt;
pkt.data = avpkt->data + (get_bits_count(&ctx->gb) >> 3);
pkt.size = get_bits_left(&ctx->gb) >> 3;
+ ctx->got_p_frame = 0;
+ av_frame_unref(ctx->p_frame);
ff_ivi_decode_frame(avctx, ctx->p_frame, &ctx->got_p_frame, &pkt);
}
}
projects / ffmpeg / blobdiff