#define BITSTREAM_READER_LE
#include "avcodec.h"
-#include "get_bits.h"
-#include "ivi.h"
-#include "ivi_dsp.h"
+#include "bitstream.h"
#include "indeo4data.h"
#include "internal.h"
+#include "ivi.h"
+#include "ivi_dsp.h"
+#include "vlc.h"
#define IVI4_PIC_SIZE_ESC 7
* - 4 wavelet bands per plane, size factor 1:4, code pattern: 2,3,3,3,3
* Anything else is either unsupported or corrupt.
*
- * @param[in,out] gb the GetBit context
+ * @param[in,out] bc the Bitstream context
* @return number of wavelet bands or 0 on error
*/
-static int decode_plane_subdivision(GetBitContext *gb)
+static int decode_plane_subdivision(BitstreamContext *bc)
{
int i;
- switch (get_bits(gb, 2)) {
+ switch (bitstream_read(bc, 2)) {
case 3:
return 1;
case 2:
for (i = 0; i < 4; i++)
- if (get_bits(gb, 2) != 3)
+ if (bitstream_read(bc, 2) != 3)
return 0;
return 4;
default:
int pic_size_indx, i, p;
IVIPicConfig pic_conf;
- if (get_bits(&ctx->gb, 18) != 0x3FFF8) {
+ if (bitstream_read(&ctx->bc, 18) != 0x3FFF8) {
av_log(avctx, AV_LOG_ERROR, "Invalid picture start code!\n");
return AVERROR_INVALIDDATA;
}
ctx->prev_frame_type = ctx->frame_type;
- ctx->frame_type = get_bits(&ctx->gb, 3);
+ ctx->frame_type = bitstream_read(&ctx->bc, 3);
if (ctx->frame_type == 7) {
av_log(avctx, AV_LOG_ERROR, "Invalid frame type: %d\n", ctx->frame_type);
return AVERROR_INVALIDDATA;
}
-#if IVI4_STREAM_ANALYSER
if (ctx->frame_type == IVI4_FRAMETYPE_BIDIR)
ctx->has_b_frames = 1;
-#endif
- ctx->transp_status = get_bits1(&ctx->gb);
-#if IVI4_STREAM_ANALYSER
- if (ctx->transp_status) {
- ctx->has_transp = 1;
- }
-#endif
+ ctx->has_transp = bitstream_read_bit(&ctx->bc);
/* unknown bit: Mac decoder ignores this bit, XANIM returns error */
- if (get_bits1(&ctx->gb)) {
+ if (bitstream_read_bit(&ctx->bc)) {
av_log(avctx, AV_LOG_ERROR, "Sync bit is set!\n");
return AVERROR_INVALIDDATA;
}
- ctx->data_size = get_bits1(&ctx->gb) ? get_bits(&ctx->gb, 24) : 0;
+ ctx->data_size = bitstream_read_bit(&ctx->bc) ? bitstream_read(&ctx->bc, 24) : 0;
/* null frames don't contain anything else so we just return */
if (ctx->frame_type >= IVI4_FRAMETYPE_NULL_FIRST) {
/* Check key lock status. If enabled - ignore lock word. */
/* Usually we have to prompt the user for the password, but */
/* we don't do that because Indeo 4 videos can be decoded anyway */
- if (get_bits1(&ctx->gb)) {
- skip_bits_long(&ctx->gb, 32);
+ if (bitstream_read_bit(&ctx->bc)) {
+ bitstream_skip(&ctx->bc, 32);
ff_dlog(avctx, "Password-protected clip!\n");
}
- pic_size_indx = get_bits(&ctx->gb, 3);
+ pic_size_indx = bitstream_read(&ctx->bc, 3);
if (pic_size_indx == IVI4_PIC_SIZE_ESC) {
- pic_conf.pic_height = get_bits(&ctx->gb, 16);
- pic_conf.pic_width = get_bits(&ctx->gb, 16);
+ pic_conf.pic_height = bitstream_read(&ctx->bc, 16);
+ pic_conf.pic_width = bitstream_read(&ctx->bc, 16);
} else {
pic_conf.pic_height = ivi4_common_pic_sizes[pic_size_indx * 2 + 1];
pic_conf.pic_width = ivi4_common_pic_sizes[pic_size_indx * 2 ];
}
/* Decode tile dimensions. */
- if (get_bits1(&ctx->gb)) {
- pic_conf.tile_height = scale_tile_size(pic_conf.pic_height, get_bits(&ctx->gb, 4));
- pic_conf.tile_width = scale_tile_size(pic_conf.pic_width, get_bits(&ctx->gb, 4));
-#if IVI4_STREAM_ANALYSER
- ctx->uses_tiling = 1;
-#endif
+ ctx->uses_tiling = bitstream_read_bit(&ctx->bc);
+ if (ctx->uses_tiling) {
+ pic_conf.tile_height = scale_tile_size(pic_conf.pic_height, bitstream_read(&ctx->bc, 4));
+ pic_conf.tile_width = scale_tile_size(pic_conf.pic_width, bitstream_read(&ctx->bc, 4));
} else {
pic_conf.tile_height = pic_conf.pic_height;
pic_conf.tile_width = pic_conf.pic_width;
}
/* Decode chroma subsampling. We support only 4:4 aka YVU9. */
- if (get_bits(&ctx->gb, 2)) {
+ if (bitstream_read(&ctx->bc, 2)) {
av_log(avctx, AV_LOG_ERROR, "Only YVU9 picture format is supported!\n");
return AVERROR_INVALIDDATA;
}
pic_conf.chroma_width = (pic_conf.pic_width + 3) >> 2;
/* decode subdivision of the planes */
- pic_conf.luma_bands = decode_plane_subdivision(&ctx->gb);
+ pic_conf.luma_bands = decode_plane_subdivision(&ctx->bc);
if (pic_conf.luma_bands)
- pic_conf.chroma_bands = decode_plane_subdivision(&ctx->gb);
+ pic_conf.chroma_bands = decode_plane_subdivision(&ctx->bc);
ctx->is_scalable = pic_conf.luma_bands != 1 || pic_conf.chroma_bands != 1;
if (ctx->is_scalable && (pic_conf.luma_bands != 4 || pic_conf.chroma_bands != 1)) {
av_log(avctx, AV_LOG_ERROR, "Scalability: unsupported subdivision! Luma bands: %d, chroma bands: %d\n",
}
}
- ctx->frame_num = get_bits1(&ctx->gb) ? get_bits(&ctx->gb, 20) : 0;
+ ctx->frame_num = bitstream_read_bit(&ctx->bc) ? bitstream_read(&ctx->bc, 20) : 0;
/* skip decTimeEst field if present */
- if (get_bits1(&ctx->gb))
- skip_bits(&ctx->gb, 8);
+ if (bitstream_read_bit(&ctx->bc))
+ bitstream_skip(&ctx->bc, 8);
/* decode macroblock and block huffman codebooks */
- if (ff_ivi_dec_huff_desc(&ctx->gb, get_bits1(&ctx->gb), IVI_MB_HUFF, &ctx->mb_vlc, avctx) ||
- ff_ivi_dec_huff_desc(&ctx->gb, get_bits1(&ctx->gb), IVI_BLK_HUFF, &ctx->blk_vlc, avctx))
+ if (ff_ivi_dec_huff_desc(&ctx->bc, bitstream_read_bit(&ctx->bc), IVI_MB_HUFF, &ctx->mb_vlc, avctx) ||
+ ff_ivi_dec_huff_desc(&ctx->bc, bitstream_read_bit(&ctx->bc), IVI_BLK_HUFF, &ctx->blk_vlc, avctx))
return AVERROR_INVALIDDATA;
- ctx->rvmap_sel = get_bits1(&ctx->gb) ? get_bits(&ctx->gb, 3) : 8;
+ ctx->rvmap_sel = bitstream_read_bit(&ctx->bc) ? bitstream_read(&ctx->bc, 3) : 8;
- ctx->in_imf = get_bits1(&ctx->gb);
- ctx->in_q = get_bits1(&ctx->gb);
+ ctx->in_imf = bitstream_read_bit(&ctx->bc);
+ ctx->in_q = bitstream_read_bit(&ctx->bc);
- ctx->pic_glob_quant = get_bits(&ctx->gb, 5);
+ ctx->pic_glob_quant = bitstream_read(&ctx->bc, 5);
/* TODO: ignore this parameter if unused */
- ctx->unknown1 = get_bits1(&ctx->gb) ? get_bits(&ctx->gb, 3) : 0;
+ ctx->unknown1 = bitstream_read_bit(&ctx->bc) ? bitstream_read(&ctx->bc, 3) : 0;
- ctx->checksum = get_bits1(&ctx->gb) ? get_bits(&ctx->gb, 16) : 0;
+ ctx->checksum = bitstream_read_bit(&ctx->bc) ? bitstream_read(&ctx->bc, 16) : 0;
/* skip picture header extension if any */
- while (get_bits1(&ctx->gb)) {
+ while (bitstream_read_bit(&ctx->bc)) {
ff_dlog(avctx, "Pic hdr extension encountered!\n");
- skip_bits(&ctx->gb, 8);
+ bitstream_skip(&ctx->bc, 8);
}
- if (get_bits1(&ctx->gb)) {
+ if (bitstream_read_bit(&ctx->bc)) {
av_log(avctx, AV_LOG_ERROR, "Bad blocks bits encountered!\n");
}
- align_get_bits(&ctx->gb);
+ bitstream_align(&ctx->bc);
return 0;
}
int plane, band_num, indx, transform_id, scan_indx;
int i;
- plane = get_bits(&ctx->gb, 2);
- band_num = get_bits(&ctx->gb, 4);
+ plane = bitstream_read(&ctx->bc, 2);
+ band_num = bitstream_read(&ctx->bc, 4);
if (band->plane != plane || band->band_num != band_num) {
av_log(avctx, AV_LOG_ERROR, "Invalid band header sequence!\n");
return AVERROR_INVALIDDATA;
}
- band->is_empty = get_bits1(&ctx->gb);
+ band->is_empty = bitstream_read_bit(&ctx->bc);
if (!band->is_empty) {
int old_blk_size = band->blk_size;
/* skip header size
* If header size is not given, header size is 4 bytes. */
- if (get_bits1(&ctx->gb))
- skip_bits(&ctx->gb, 16);
+ if (bitstream_read_bit(&ctx->bc))
+ bitstream_skip(&ctx->bc, 16);
- band->is_halfpel = get_bits(&ctx->gb, 2);
+ band->is_halfpel = bitstream_read(&ctx->bc, 2);
if (band->is_halfpel >= 2) {
av_log(avctx, AV_LOG_ERROR, "Invalid/unsupported mv resolution: %d!\n",
band->is_halfpel);
return AVERROR_INVALIDDATA;
}
-#if IVI4_STREAM_ANALYSER
if (!band->is_halfpel)
ctx->uses_fullpel = 1;
-#endif
- band->checksum_present = get_bits1(&ctx->gb);
+ band->checksum_present = bitstream_read_bit(&ctx->bc);
if (band->checksum_present)
- band->checksum = get_bits(&ctx->gb, 16);
+ band->checksum = bitstream_read(&ctx->bc, 16);
- indx = get_bits(&ctx->gb, 2);
+ indx = bitstream_read(&ctx->bc, 2);
if (indx == 3) {
av_log(avctx, AV_LOG_ERROR, "Invalid block size!\n");
return AVERROR_INVALIDDATA;
band->mb_size = 16 >> indx;
band->blk_size = 8 >> (indx >> 1);
- band->inherit_mv = get_bits1(&ctx->gb);
- band->inherit_qdelta = get_bits1(&ctx->gb);
+ band->inherit_mv = bitstream_read_bit(&ctx->bc);
+ band->inherit_qdelta = bitstream_read_bit(&ctx->bc);
- band->glob_quant = get_bits(&ctx->gb, 5);
+ band->glob_quant = bitstream_read(&ctx->bc, 5);
- if (!get_bits1(&ctx->gb) || ctx->frame_type == IVI4_FRAMETYPE_INTRA) {
- transform_id = get_bits(&ctx->gb, 5);
+ if (!bitstream_read_bit(&ctx->bc) || ctx->frame_type == IVI4_FRAMETYPE_INTRA) {
+ transform_id = bitstream_read(&ctx->bc, 5);
if (transform_id >= FF_ARRAY_ELEMS(transforms) ||
!transforms[transform_id].inv_trans) {
avpriv_request_sample(avctx, "Transform %d", transform_id);
return AVERROR_PATCHWELCOME;
}
-#if IVI4_STREAM_ANALYSER
if ((transform_id >= 0 && transform_id <= 2) || transform_id == 10)
ctx->uses_haar = 1;
-#endif
band->inv_transform = transforms[transform_id].inv_trans;
band->dc_transform = transforms[transform_id].dc_trans;
if (band->blk_size != band->transform_size)
return AVERROR_INVALIDDATA;
- scan_indx = get_bits(&ctx->gb, 4);
+ scan_indx = bitstream_read(&ctx->bc, 4);
if (scan_indx == 15) {
av_log(avctx, AV_LOG_ERROR, "Custom scan pattern encountered!\n");
return AVERROR_INVALIDDATA;
band->scan = scan_index_to_tab[scan_indx];
- band->quant_mat = get_bits(&ctx->gb, 5);
+ band->quant_mat = bitstream_read(&ctx->bc, 5);
if (band->quant_mat >= FF_ARRAY_ELEMS(quant_index_to_tab)) {
if (band->quant_mat == 31)
}
/* decode block huffman codebook */
- if (!get_bits1(&ctx->gb))
+ if (!bitstream_read_bit(&ctx->bc))
band->blk_vlc.tab = ctx->blk_vlc.tab;
else
- if (ff_ivi_dec_huff_desc(&ctx->gb, 1, IVI_BLK_HUFF,
+ if (ff_ivi_dec_huff_desc(&ctx->bc, 1, IVI_BLK_HUFF,
&band->blk_vlc, avctx))
return AVERROR_INVALIDDATA;
/* select appropriate rvmap table for this band */
- band->rvmap_sel = get_bits1(&ctx->gb) ? get_bits(&ctx->gb, 3) : 8;
+ band->rvmap_sel = bitstream_read_bit(&ctx->bc) ? bitstream_read(&ctx->bc, 3) : 8;
/* decode rvmap probability corrections if any */
band->num_corr = 0; /* there is no corrections */
- if (get_bits1(&ctx->gb)) {
- band->num_corr = get_bits(&ctx->gb, 8); /* get number of correction pairs */
+ if (bitstream_read_bit(&ctx->bc)) {
+ band->num_corr = bitstream_read(&ctx->bc, 8); /* get number of correction pairs */
if (band->num_corr > 61) {
av_log(avctx, AV_LOG_ERROR, "Too many corrections: %d\n",
band->num_corr);
/* read correction pairs */
for (i = 0; i < band->num_corr * 2; i++)
- band->corr[i] = get_bits(&ctx->gb, 8);
+ band->corr[i] = bitstream_read(&ctx->bc, 8);
}
}
band->intra_scale = NULL;
band->inter_scale = NULL;
- align_get_bits(&ctx->gb);
+ bitstream_align(&ctx->bc);
return 0;
}
mb->b_mv_x =
mb->b_mv_y = 0;
- if (get_bits1(&ctx->gb)) {
+ if (bitstream_read_bit(&ctx->bc)) {
if (ctx->frame_type == IVI4_FRAMETYPE_INTRA) {
av_log(avctx, AV_LOG_ERROR, "Empty macroblock in an INTRA picture!\n");
return AVERROR_INVALIDDATA;
mb->q_delta = 0;
if (!band->plane && !band->band_num && ctx->in_q) {
- mb->q_delta = get_vlc2(&ctx->gb, ctx->mb_vlc.tab->table,
- IVI_VLC_BITS, 1);
+ mb->q_delta = bitstream_read_vlc(&ctx->bc,
+ ctx->mb_vlc.tab->table,
+ IVI_VLC_BITS, 1);
mb->q_delta = IVI_TOSIGNED(mb->q_delta);
}
ctx->frame_type == IVI4_FRAMETYPE_INTRA1) {
mb->type = 0; /* mb_type is always INTRA for intra-frames */
} else {
- mb->type = get_bits(&ctx->gb, mb_type_bits);
+ mb->type = bitstream_read(&ctx->bc, mb_type_bits);
}
- mb->cbp = get_bits(&ctx->gb, blks_per_mb);
+ mb->cbp = bitstream_read(&ctx->bc, blks_per_mb);
mb->q_delta = 0;
if (band->inherit_qdelta) {
if (ref_mb) mb->q_delta = ref_mb->q_delta;
} else if (mb->cbp || (!band->plane && !band->band_num &&
ctx->in_q)) {
- mb->q_delta = get_vlc2(&ctx->gb, ctx->mb_vlc.tab->table,
- IVI_VLC_BITS, 1);
+ mb->q_delta = bitstream_read_vlc(&ctx->bc,
+ ctx->mb_vlc.tab->table,
+ IVI_VLC_BITS, 1);
mb->q_delta = IVI_TOSIGNED(mb->q_delta);
}
}
} else {
/* decode motion vector deltas */
- mv_delta = get_vlc2(&ctx->gb, ctx->mb_vlc.tab->table,
- IVI_VLC_BITS, 1);
+ mv_delta = bitstream_read_vlc(&ctx->bc,
+ ctx->mb_vlc.tab->table,
+ IVI_VLC_BITS, 1);
mv_y += IVI_TOSIGNED(mv_delta);
- mv_delta = get_vlc2(&ctx->gb, ctx->mb_vlc.tab->table,
- IVI_VLC_BITS, 1);
+ mv_delta = bitstream_read_vlc(&ctx->bc,
+ ctx->mb_vlc.tab->table,
+ IVI_VLC_BITS, 1);
mv_x += IVI_TOSIGNED(mv_delta);
mb->mv_x = mv_x;
mb->mv_y = mv_y;
if (mb->type == 3) {
- mv_delta = get_vlc2(&ctx->gb,
- ctx->mb_vlc.tab->table,
- IVI_VLC_BITS, 1);
+ mv_delta = bitstream_read_vlc(&ctx->bc,
+ ctx->mb_vlc.tab->table,
+ IVI_VLC_BITS, 1);
mv_y += IVI_TOSIGNED(mv_delta);
- mv_delta = get_vlc2(&ctx->gb,
- ctx->mb_vlc.tab->table,
- IVI_VLC_BITS, 1);
+ mv_delta = bitstream_read_vlc(&ctx->bc,
+ ctx->mb_vlc.tab->table,
+ IVI_VLC_BITS, 1);
mv_x += IVI_TOSIGNED(mv_delta);
mb->b_mv_x = -mv_x;
mb->b_mv_y = -mv_y;
offs += row_offset;
}
- align_get_bits(&ctx->gb);
+ bitstream_align(&ctx->bc);
return 0;
}
ctx->is_nonnull_frame = is_nonnull_frame;
ctx->is_indeo4 = 1;
+ ctx->show_indeo4_info = 1;
ctx->dst_buf = 0;
ctx->ref_buf = 1;
projects / ffmpeg / blobdiff