#define BITSTREAM_READER_LE
#include "avcodec.h"
-#include "get_bits.h"
-#include "dsputil.h"
+#include "bitstream.h"
+#include "ivi.h"
#include "ivi_dsp.h"
-#include "ivi_common.h"
#include "indeo5data.h"
/**
#define IVI5_PIC_SIZE_ESC 15
-#define IVI5_IS_PROTECTED 0x20
-
-typedef struct {
- GetBitContext gb;
- AVFrame frame;
- RVMapDesc rvmap_tabs[9]; ///< local corrected copy of the static rvmap tables
- IVIPlaneDesc planes[3]; ///< color planes
- const uint8_t *frame_data; ///< input frame data pointer
- int buf_switch; ///< used to switch between three buffers
- int inter_scal; ///< signals a sequence of scalable inter frames
- int dst_buf; ///< buffer index for the currently decoded frame
- int ref_buf; ///< inter frame reference buffer index
- int ref2_buf; ///< temporal storage for switching buffers
- uint32_t frame_size; ///< frame size in bytes
- int frame_type;
- int prev_frame_type; ///< frame type of the previous frame
- int frame_num;
- uint32_t pic_hdr_size; ///< picture header size in bytes
- uint8_t frame_flags;
- uint16_t checksum; ///< frame checksum
-
- IVIHuffTab mb_vlc; ///< vlc table for decoding macroblock data
-
- uint16_t gop_hdr_size;
- uint8_t gop_flags;
- int is_scalable;
- uint32_t lock_word;
- IVIPicConfig pic_conf;
-} IVI5DecContext;
-
-
/**
* Decode Indeo5 GOP (Group of pictures) header.
* This header is present in key frames only.
* @param[in] avctx ptr to the AVCodecContext
* @return result code: 0 = OK, -1 = error
*/
-static int decode_gop_header(IVI5DecContext *ctx, AVCodecContext *avctx)
+static int decode_gop_header(IVI45DecContext *ctx, AVCodecContext *avctx)
{
int result, i, p, tile_size, pic_size_indx, mb_size, blk_size;
int quant_mat, blk_size_changed = 0;
IVIBandDesc *band, *band1, *band2;
IVIPicConfig pic_conf;
- ctx->gop_flags = get_bits(&ctx->gb, 8);
+ ctx->gop_flags = bitstream_read(&ctx->bc, 8);
- ctx->gop_hdr_size = (ctx->gop_flags & 1) ? get_bits(&ctx->gb, 16) : 0;
+ ctx->gop_hdr_size = (ctx->gop_flags & 1) ? bitstream_read(&ctx->bc, 16) : 0;
if (ctx->gop_flags & IVI5_IS_PROTECTED)
- ctx->lock_word = get_bits_long(&ctx->gb, 32);
+ ctx->lock_word = bitstream_read(&ctx->bc, 32);
- tile_size = (ctx->gop_flags & 0x40) ? 64 << get_bits(&ctx->gb, 2) : 0;
+ tile_size = (ctx->gop_flags & 0x40) ? 64 << bitstream_read(&ctx->bc, 2) : 0;
if (tile_size > 256) {
av_log(avctx, AV_LOG_ERROR, "Invalid tile size: %d\n", tile_size);
- return -1;
+ return AVERROR_INVALIDDATA;
}
/* decode number of wavelet bands */
/* num_levels * 3 + 1 */
- pic_conf.luma_bands = get_bits(&ctx->gb, 2) * 3 + 1;
- pic_conf.chroma_bands = get_bits1(&ctx->gb) * 3 + 1;
+ pic_conf.luma_bands = bitstream_read(&ctx->bc, 2) * 3 + 1;
+ pic_conf.chroma_bands = bitstream_read_bit(&ctx->bc) * 3 + 1;
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",
pic_conf.luma_bands, pic_conf.chroma_bands);
- return -1;
+ return AVERROR_INVALIDDATA;
}
- pic_size_indx = get_bits(&ctx->gb, 4);
+ pic_size_indx = bitstream_read(&ctx->bc, 4);
if (pic_size_indx == IVI5_PIC_SIZE_ESC) {
- pic_conf.pic_height = get_bits(&ctx->gb, 13);
- pic_conf.pic_width = get_bits(&ctx->gb, 13);
+ pic_conf.pic_height = bitstream_read(&ctx->bc, 13);
+ pic_conf.pic_width = bitstream_read(&ctx->bc, 13);
} else {
pic_conf.pic_height = ivi5_common_pic_sizes[pic_size_indx * 2 + 1] << 2;
pic_conf.pic_width = ivi5_common_pic_sizes[pic_size_indx * 2 ] << 2;
}
if (ctx->gop_flags & 2) {
- av_log(avctx, AV_LOG_ERROR, "YV12 picture format not supported!\n");
- return -1;
+ avpriv_report_missing_feature(avctx, "YV12 picture format");
+ return AVERROR_PATCHWELCOME;
}
pic_conf.chroma_height = (pic_conf.pic_height + 3) >> 2;
}
/* check if picture layout was changed and reallocate buffers */
- if (ivi_pic_config_cmp(&pic_conf, &ctx->pic_conf)) {
- result = ff_ivi_init_planes(ctx->planes, &pic_conf);
- if (result) {
+ if (ivi_pic_config_cmp(&pic_conf, &ctx->pic_conf) || ctx->gop_invalid) {
+ result = ff_ivi_init_planes(ctx->planes, &pic_conf, 0);
+ if (result < 0) {
av_log(avctx, AV_LOG_ERROR, "Couldn't reallocate color planes!\n");
- return -1;
+ return result;
}
ctx->pic_conf = pic_conf;
blk_size_changed = 1; /* force reallocation of the internal structures */
for (i = 0; i < (!p ? pic_conf.luma_bands : pic_conf.chroma_bands); i++) {
band = &ctx->planes[p].bands[i];
- band->is_halfpel = get_bits1(&ctx->gb);
+ band->is_halfpel = bitstream_read_bit(&ctx->bc);
- mb_size = get_bits1(&ctx->gb);
- blk_size = 8 >> get_bits1(&ctx->gb);
+ mb_size = bitstream_read_bit(&ctx->bc);
+ blk_size = 8 >> bitstream_read_bit(&ctx->bc);
mb_size = blk_size << !mb_size;
blk_size_changed = mb_size != band->mb_size || blk_size != band->blk_size;
band->blk_size = blk_size;
}
- if (get_bits1(&ctx->gb)) {
- av_log(avctx, AV_LOG_ERROR, "Extended transform info encountered!\n");
- return -1;
+ if (bitstream_read_bit(&ctx->bc)) {
+ avpriv_report_missing_feature(avctx, "Extended transform info");
+ return AVERROR_PATCHWELCOME;
}
/* select transform function and scan pattern according to plane and band number */
switch ((p << 2) + i) {
case 0:
- band->inv_transform = ff_ivi_inverse_slant_8x8;
- band->dc_transform = ff_ivi_dc_slant_2d;
- band->scan = ff_zigzag_direct;
+ band->inv_transform = ff_ivi_inverse_slant_8x8;
+ band->dc_transform = ff_ivi_dc_slant_2d;
+ band->scan = ff_zigzag_direct;
+ band->transform_size = 8;
break;
case 1:
- band->inv_transform = ff_ivi_row_slant8;
- band->dc_transform = ff_ivi_dc_row_slant;
- band->scan = ff_ivi_vertical_scan_8x8;
+ band->inv_transform = ff_ivi_row_slant8;
+ band->dc_transform = ff_ivi_dc_row_slant;
+ band->scan = ff_ivi_vertical_scan_8x8;
+ band->transform_size = 8;
break;
case 2:
- band->inv_transform = ff_ivi_col_slant8;
- band->dc_transform = ff_ivi_dc_col_slant;
- band->scan = ff_ivi_horizontal_scan_8x8;
+ band->inv_transform = ff_ivi_col_slant8;
+ band->dc_transform = ff_ivi_dc_col_slant;
+ band->scan = ff_ivi_horizontal_scan_8x8;
+ band->transform_size = 8;
break;
case 3:
- band->inv_transform = ff_ivi_put_pixels_8x8;
- band->dc_transform = ff_ivi_put_dc_pixel_8x8;
- band->scan = ff_ivi_horizontal_scan_8x8;
+ band->inv_transform = ff_ivi_put_pixels_8x8;
+ band->dc_transform = ff_ivi_put_dc_pixel_8x8;
+ band->scan = ff_ivi_horizontal_scan_8x8;
+ band->transform_size = 8;
break;
case 4:
- band->inv_transform = ff_ivi_inverse_slant_4x4;
- band->dc_transform = ff_ivi_dc_slant_2d;
- band->scan = ff_ivi_direct_scan_4x4;
+ band->inv_transform = ff_ivi_inverse_slant_4x4;
+ band->dc_transform = ff_ivi_dc_slant_2d;
+ band->scan = ff_ivi_direct_scan_4x4;
+ band->transform_size = 4;
break;
}
band->is_2d_trans = band->inv_transform == ff_ivi_inverse_slant_8x8 ||
band->inv_transform == ff_ivi_inverse_slant_4x4;
+ if (band->transform_size != band->blk_size)
+ return AVERROR_INVALIDDATA;
+
/* select dequant matrix according to plane and band number */
if (!p) {
quant_mat = (pic_conf.luma_bands > 1) ? i+1 : 0;
band->inter_scale = ivi5_scale_quant_4x4_inter;
}
- if (get_bits(&ctx->gb, 2)) {
+ if (bitstream_read(&ctx->bc, 2)) {
av_log(avctx, AV_LOG_ERROR, "End marker missing!\n");
- return -1;
+ return AVERROR_INVALIDDATA;
}
}
}
if (blk_size_changed) {
result = ff_ivi_init_tiles(ctx->planes, pic_conf.tile_width,
pic_conf.tile_height);
- if (result) {
+ if (result < 0) {
av_log(avctx, AV_LOG_ERROR,
"Couldn't reallocate internal structures!\n");
- return -1;
+ return result;
}
}
if (ctx->gop_flags & 8) {
- if (get_bits(&ctx->gb, 3)) {
+ if (bitstream_read(&ctx->bc, 3)) {
av_log(avctx, AV_LOG_ERROR, "Alignment bits are not zero!\n");
- return -1;
+ return AVERROR_INVALIDDATA;
}
- if (get_bits1(&ctx->gb))
- skip_bits_long(&ctx->gb, 24); /* skip transparency fill color */
+ if (bitstream_read_bit(&ctx->bc))
+ bitstream_skip(&ctx->bc, 24); /* skip transparency fill color */
}
- align_get_bits(&ctx->gb);
+ bitstream_align(&ctx->bc);
- skip_bits(&ctx->gb, 23); /* FIXME: unknown meaning */
+ bitstream_skip(&ctx->bc, 23); /* FIXME: unknown meaning */
/* skip GOP extension if any */
- if (get_bits1(&ctx->gb)) {
+ if (bitstream_read_bit(&ctx->bc)) {
do {
- i = get_bits(&ctx->gb, 16);
+ i = bitstream_read(&ctx->bc, 16);
} while (i & 0x8000);
}
- align_get_bits(&ctx->gb);
+ bitstream_align(&ctx->bc);
return 0;
}
/**
* Skip a header extension.
*
- * @param[in,out] gb the GetBit context
+ * @param[in,out] bc the Bitstream context
*/
-static inline void skip_hdr_extension(GetBitContext *gb)
+static inline void skip_hdr_extension(BitstreamContext *bc)
{
int i, len;
do {
- len = get_bits(gb, 8);
- for (i = 0; i < len; i++) skip_bits(gb, 8);
+ len = bitstream_read(bc, 8);
+ for (i = 0; i < len; i++)
+ bitstream_skip(bc, 8);
} while(len);
}
* @param[in] avctx ptr to the AVCodecContext
* @return result code: 0 = OK, -1 = error
*/
-static int decode_pic_hdr(IVI5DecContext *ctx, AVCodecContext *avctx)
+static int decode_pic_hdr(IVI45DecContext *ctx, AVCodecContext *avctx)
{
- if (get_bits(&ctx->gb, 5) != 0x1F) {
+ int ret;
+
+ if (bitstream_read(&ctx->bc, 5) != 0x1F) {
av_log(avctx, AV_LOG_ERROR, "Invalid picture start code!\n");
- return -1;
+ 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 >= 5) {
av_log(avctx, AV_LOG_ERROR, "Invalid frame type: %d \n", ctx->frame_type);
- return -1;
+ return AVERROR_INVALIDDATA;
}
- ctx->frame_num = get_bits(&ctx->gb, 8);
+ ctx->frame_num = bitstream_read(&ctx->bc, 8);
if (ctx->frame_type == FRAMETYPE_INTRA) {
- if (decode_gop_header(ctx, avctx))
- return -1;
+ if ((ret = decode_gop_header(ctx, avctx)) < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Invalid GOP header, skipping frames.\n");
+ ctx->gop_invalid = 1;
+ return ret;
+ }
+ ctx->gop_invalid = 0;
}
if (ctx->frame_type != FRAMETYPE_NULL) {
- ctx->frame_flags = get_bits(&ctx->gb, 8);
+ ctx->frame_flags = bitstream_read(&ctx->bc, 8);
- ctx->pic_hdr_size = (ctx->frame_flags & 1) ? get_bits_long(&ctx->gb, 24) : 0;
+ ctx->pic_hdr_size = (ctx->frame_flags & 1) ? bitstream_read(&ctx->bc, 24) : 0;
- ctx->checksum = (ctx->frame_flags & 0x10) ? get_bits(&ctx->gb, 16) : 0;
+ ctx->checksum = (ctx->frame_flags & 0x10) ? bitstream_read(&ctx->bc, 16) : 0;
/* skip unknown extension if any */
if (ctx->frame_flags & 0x20)
- skip_hdr_extension(&ctx->gb); /* XXX: untested */
+ skip_hdr_extension(&ctx->bc); /* XXX: untested */
/* decode macroblock huffman codebook */
- if (ff_ivi_dec_huff_desc(&ctx->gb, ctx->frame_flags & 0x40, IVI_MB_HUFF, &ctx->mb_vlc, avctx))
- return -1;
+ ret = ff_ivi_dec_huff_desc(&ctx->bc, ctx->frame_flags & 0x40,
+ IVI_MB_HUFF, &ctx->mb_vlc, avctx);
+ if (ret < 0)
+ return ret;
- skip_bits(&ctx->gb, 3); /* FIXME: unknown meaning! */
+ bitstream_skip(&ctx->bc, 3); /* FIXME: unknown meaning! */
}
- align_get_bits(&ctx->gb);
+ bitstream_align(&ctx->bc);
return 0;
}
* @param[in] avctx ptr to the AVCodecContext
* @return result code: 0 = OK, -1 = error
*/
-static int decode_band_hdr(IVI5DecContext *ctx, IVIBandDesc *band,
+static int decode_band_hdr(IVI45DecContext *ctx, IVIBandDesc *band,
AVCodecContext *avctx)
{
- int i;
+ int i, ret;
uint8_t band_flags;
- band_flags = get_bits(&ctx->gb, 8);
+ band_flags = bitstream_read(&ctx->bc, 8);
if (band_flags & 1) {
band->is_empty = 1;
return 0;
}
- band->data_size = (ctx->frame_flags & 0x80) ? get_bits_long(&ctx->gb, 24) : 0;
+ band->data_size = (ctx->frame_flags & 0x80) ? bitstream_read(&ctx->bc, 24) : 0;
band->inherit_mv = band_flags & 2;
band->inherit_qdelta = band_flags & 8;
/* decode rvmap probability corrections if any */
band->num_corr = 0; /* there are no corrections */
if (band_flags & 0x10) {
- band->num_corr = get_bits(&ctx->gb, 8); /* get number of correction pairs */
+ 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);
- return -1;
+ return AVERROR_INVALIDDATA;
}
/* 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);
}
/* select appropriate rvmap table for this band */
- band->rvmap_sel = (band_flags & 0x40) ? get_bits(&ctx->gb, 3) : 8;
+ band->rvmap_sel = (band_flags & 0x40) ? bitstream_read(&ctx->bc, 3) : 8;
/* decode block huffman codebook */
- if (ff_ivi_dec_huff_desc(&ctx->gb, band_flags & 0x80, IVI_BLK_HUFF, &band->blk_vlc, avctx))
- return -1;
+ ret = ff_ivi_dec_huff_desc(&ctx->bc, band_flags & 0x80, IVI_BLK_HUFF,
+ &band->blk_vlc, avctx);
+ if (ret < 0)
+ return ret;
- 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);
- band->glob_quant = get_bits(&ctx->gb, 5);
+ band->glob_quant = bitstream_read(&ctx->bc, 5);
/* skip unknown extension if any */
if (band_flags & 0x20) { /* XXX: untested */
- align_get_bits(&ctx->gb);
- skip_hdr_extension(&ctx->gb);
+ bitstream_align(&ctx->bc);
+ skip_hdr_extension(&ctx->bc);
}
- align_get_bits(&ctx->gb);
+ bitstream_align(&ctx->bc);
return 0;
}
* @param[in] avctx ptr to the AVCodecContext
* @return result code: 0 = OK, -1 = error
*/
-static int decode_mb_info(IVI5DecContext *ctx, IVIBandDesc *band,
+static int decode_mb_info(IVI45DecContext *ctx, IVIBandDesc *band,
IVITile *tile, AVCodecContext *avctx)
{
int x, y, mv_x, mv_y, mv_delta, offs, mb_offset,
ref_mb = tile->ref_mbs;
offs = tile->ypos * band->pitch + tile->xpos;
+ if (!ref_mb &&
+ ((band->qdelta_present && band->inherit_qdelta) || band->inherit_mv))
+ return AVERROR_INVALIDDATA;
+
+ if (tile->num_MBs != IVI_MBs_PER_TILE(tile->width, tile->height, band->mb_size)) {
+ av_log(avctx, AV_LOG_ERROR, "Allocated tile size %d mismatches parameters %d\n",
+ tile->num_MBs, IVI_MBs_PER_TILE(tile->width, tile->height, band->mb_size));
+ return AVERROR_INVALIDDATA;
+ }
+
/* scale factor for motion vectors */
mv_scale = (ctx->planes[0].bands[0].mb_size >> 3) - (band->mb_size >> 3);
mv_x = mv_y = 0;
mb->ypos = y;
mb->buf_offs = mb_offset;
- if (get_bits1(&ctx->gb)) {
+ if (bitstream_read_bit(&ctx->bc)) {
if (ctx->frame_type == FRAMETYPE_INTRA) {
av_log(avctx, AV_LOG_ERROR, "Empty macroblock in an INTRA picture!\n");
- return -1;
+ return AVERROR_INVALIDDATA;
}
mb->type = 1; /* empty macroblocks are always INTER */
mb->cbp = 0; /* all blocks are empty */
mb->q_delta = 0;
if (!band->plane && !band->band_num && (ctx->frame_flags & 8)) {
- 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 if (ctx->frame_type == FRAMETYPE_INTRA) {
mb->type = 0; /* mb_type is always INTRA for intra-frames */
} else {
- mb->type = get_bits1(&ctx->gb);
+ mb->type = bitstream_read_bit(&ctx->bc);
}
blks_per_mb = band->mb_size != band->blk_size ? 4 : 1;
- mb->cbp = get_bits(&ctx->gb, blks_per_mb);
+ mb->cbp = bitstream_read(&ctx->bc, blks_per_mb);
mb->q_delta = 0;
if (band->qdelta_present) {
if (ref_mb) mb->q_delta = ref_mb->q_delta;
} else if (mb->cbp || (!band->plane && !band->band_num &&
(ctx->frame_flags & 8))) {
- 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;
offs += row_offset;
}
- align_get_bits(&ctx->gb);
+ bitstream_align(&ctx->bc);
return 0;
}
-/**
- * Decode an Indeo5 band.
- *
- * @param[in,out] ctx ptr to the decoder context
- * @param[in,out] band ptr to the band descriptor
- * @param[in] avctx ptr to the AVCodecContext
- * @return result code: 0 = OK, -1 = error
- */
-static int decode_band(IVI5DecContext *ctx, int plane_num,
- IVIBandDesc *band, AVCodecContext *avctx)
-{
- int result, i, t, idx1, idx2, pos;
- IVITile *tile;
-
- band->buf = band->bufs[ctx->dst_buf];
- band->ref_buf = band->bufs[ctx->ref_buf];
- band->data_ptr = ctx->frame_data + (get_bits_count(&ctx->gb) >> 3);
-
- result = decode_band_hdr(ctx, band, avctx);
- if (result) {
- av_log(avctx, AV_LOG_ERROR, "Error while decoding band header: %d\n",
- result);
- return -1;
- }
-
- if (band->is_empty) {
- av_log(avctx, AV_LOG_ERROR, "Empty band encountered!\n");
- return -1;
- }
-
- band->rv_map = &ctx->rvmap_tabs[band->rvmap_sel];
-
- /* apply corrections to the selected rvmap table if present */
- for (i = 0; i < band->num_corr; i++) {
- idx1 = band->corr[i*2];
- idx2 = band->corr[i*2+1];
- FFSWAP(uint8_t, band->rv_map->runtab[idx1], band->rv_map->runtab[idx2]);
- FFSWAP(int16_t, band->rv_map->valtab[idx1], band->rv_map->valtab[idx2]);
- }
-
- pos = get_bits_count(&ctx->gb);
-
- for (t = 0; t < band->num_tiles; t++) {
- tile = &band->tiles[t];
-
- tile->is_empty = get_bits1(&ctx->gb);
- if (tile->is_empty) {
- ff_ivi_process_empty_tile(avctx, band, tile,
- (ctx->planes[0].bands[0].mb_size >> 3) - (band->mb_size >> 3));
- } else {
- tile->data_size = ff_ivi_dec_tile_data_size(&ctx->gb);
-
- result = decode_mb_info(ctx, band, tile, avctx);
- if (result < 0)
- break;
-
- result = ff_ivi_decode_blocks(&ctx->gb, band, tile);
- if (result < 0 || (get_bits_count(&ctx->gb) - pos) >> 3 != tile->data_size) {
- av_log(avctx, AV_LOG_ERROR, "Corrupted tile data encountered!\n");
- break;
- }
- pos += tile->data_size << 3; // skip to next tile
- }
- }
-
- /* restore the selected rvmap table by applying its corrections in reverse order */
- for (i = band->num_corr-1; i >= 0; i--) {
- idx1 = band->corr[i*2];
- idx2 = band->corr[i*2+1];
- FFSWAP(uint8_t, band->rv_map->runtab[idx1], band->rv_map->runtab[idx2]);
- FFSWAP(int16_t, band->rv_map->valtab[idx1], band->rv_map->valtab[idx2]);
- }
-
-#ifdef DEBUG
- if (band->checksum_present) {
- uint16_t chksum = ivi_calc_band_checksum(band);
- if (chksum != band->checksum) {
- av_log(avctx, AV_LOG_ERROR,
- "Band checksum mismatch! Plane %d, band %d, received: %x, calculated: %x\n",
- band->plane, band->band_num, band->checksum, chksum);
- }
- }
-#endif
-
- align_get_bits(&ctx->gb);
-
- return result;
-}
-
-
/**
* Switch buffers.
*
* @param[in,out] ctx ptr to the decoder context
*/
-static void switch_buffers(IVI5DecContext *ctx)
+static void switch_buffers(IVI45DecContext *ctx)
{
switch (ctx->prev_frame_type) {
case FRAMETYPE_INTRA:
}
+static int is_nonnull_frame(IVI45DecContext *ctx)
+{
+ return ctx->frame_type != FRAMETYPE_NULL;
+}
+
+
/**
* Initialize Indeo5 decoder.
*/
static av_cold int decode_init(AVCodecContext *avctx)
{
- IVI5DecContext *ctx = avctx->priv_data;
+ IVI45DecContext *ctx = avctx->priv_data;
int result;
ff_ivi_init_static_vlc();
ctx->pic_conf.tile_height = avctx->height;
ctx->pic_conf.luma_bands = ctx->pic_conf.chroma_bands = 1;
- result = ff_ivi_init_planes(ctx->planes, &ctx->pic_conf);
+ result = ff_ivi_init_planes(ctx->planes, &ctx->pic_conf, 0);
if (result) {
av_log(avctx, AV_LOG_ERROR, "Couldn't allocate color planes!\n");
- return -1;
+ return AVERROR_INVALIDDATA;
}
ctx->buf_switch = 0;
ctx->inter_scal = 0;
- avctx->pix_fmt = PIX_FMT_YUV410P;
-
- return 0;
-}
-
-
-/**
- * main decoder function
- */
-static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
- AVPacket *avpkt)
-{
- IVI5DecContext *ctx = avctx->priv_data;
- const uint8_t *buf = avpkt->data;
- int buf_size = avpkt->size;
- int result, p, b;
-
- init_get_bits(&ctx->gb, buf, buf_size * 8);
- ctx->frame_data = buf;
- ctx->frame_size = buf_size;
-
- result = decode_pic_hdr(ctx, avctx);
- if (result) {
- av_log(avctx, AV_LOG_ERROR,
- "Error while decoding picture header: %d\n", result);
- return -1;
- }
-
- if (ctx->gop_flags & IVI5_IS_PROTECTED) {
- av_log(avctx, AV_LOG_ERROR, "Password-protected clip!\n");
- return -1;
- }
-
- switch_buffers(ctx);
-
- //START_TIMER;
-
- if (ctx->frame_type != FRAMETYPE_NULL) {
- for (p = 0; p < 3; p++) {
- for (b = 0; b < ctx->planes[p].num_bands; b++) {
- result = decode_band(ctx, p, &ctx->planes[p].bands[b], avctx);
- if (result) {
- av_log(avctx, AV_LOG_ERROR,
- "Error while decoding band: %d, plane: %d\n", b, p);
- return -1;
- }
- }
- }
- }
-
- //STOP_TIMER("decode_planes");
-
- if (ctx->frame.data[0])
- avctx->release_buffer(avctx, &ctx->frame);
+ ctx->decode_pic_hdr = decode_pic_hdr;
+ ctx->decode_band_hdr = decode_band_hdr;
+ ctx->decode_mb_info = decode_mb_info;
+ ctx->switch_buffers = switch_buffers;
+ ctx->is_nonnull_frame = is_nonnull_frame;
- ctx->frame.reference = 0;
- if (avctx->get_buffer(avctx, &ctx->frame) < 0) {
- av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
- return -1;
- }
-
- if (ctx->is_scalable) {
- ff_ivi_recompose53 (&ctx->planes[0], ctx->frame.data[0], ctx->frame.linesize[0], 4);
- } else {
- ff_ivi_output_plane(&ctx->planes[0], ctx->frame.data[0], ctx->frame.linesize[0]);
- }
-
- ff_ivi_output_plane(&ctx->planes[2], ctx->frame.data[1], ctx->frame.linesize[1]);
- ff_ivi_output_plane(&ctx->planes[1], ctx->frame.data[2], ctx->frame.linesize[2]);
+ ctx->is_indeo4 = 0;
- *data_size = sizeof(AVFrame);
- *(AVFrame*)data = ctx->frame;
-
- return buf_size;
-}
-
-
-/**
- * Close Indeo5 decoder and clean up its context.
- */
-static av_cold int decode_close(AVCodecContext *avctx)
-{
- IVI5DecContext *ctx = avctx->priv_data;
-
- ff_ivi_free_buffers(&ctx->planes[0]);
-
- if (ctx->mb_vlc.cust_tab.table)
- free_vlc(&ctx->mb_vlc.cust_tab);
-
- if (ctx->frame.data[0])
- avctx->release_buffer(avctx, &ctx->frame);
+ avctx->pix_fmt = AV_PIX_FMT_YUV410P;
return 0;
}
AVCodec ff_indeo5_decoder = {
.name = "indeo5",
+ .long_name = NULL_IF_CONFIG_SMALL("Intel Indeo Video Interactive 5"),
.type = AVMEDIA_TYPE_VIDEO,
- .id = CODEC_ID_INDEO5,
- .priv_data_size = sizeof(IVI5DecContext),
+ .id = AV_CODEC_ID_INDEO5,
+ .priv_data_size = sizeof(IVI45DecContext),
.init = decode_init,
- .close = decode_close,
- .decode = decode_frame,
- .long_name = NULL_IF_CONFIG_SMALL("Intel Indeo Video Interactive 5"),
+ .close = ff_ivi_decode_close,
+ .decode = ff_ivi_decode_frame,
+ .capabilities = AV_CODEC_CAP_DR1,
};
projects / ffmpeg / blobdiff