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Add 16-bit image data handling (but not decoding yet) to Interplay Video

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Originally committed as revision 20930 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Kostya Shishkov 2009-12-27 08:49:32 +00:00
parent 80fec3ffd0
commit 5a8cf39e31
1 changed files with 13 additions and 4 deletions
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17
libavcodec/interplayvideo.c
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@ -87,7 +87,7 @@ typedef struct IpvideoContext {
static int copy_from(IpvideoContext *s, AVFrame *src, int delta_x, int delta_y)
{
int current_offset = s->pixel_ptr - s->current_frame.data[0];
int motion_offset = current_offset + delta_y * s->current_frame.linesize[0] + delta_x;
int motion_offset = current_offset + delta_y * s->current_frame.linesize[0] + delta_x * (1 + s->is_16bpp);
if (motion_offset < 0) {
av_log(s->avctx, AV_LOG_ERROR, " Interplay video: motion offset < 0 (%d)\n", motion_offset);
return -1;
@ -96,7 +96,7 @@ static int copy_from(IpvideoContext *s, AVFrame *src, int delta_x, int delta_y)
motion_offset, s->upper_motion_limit_offset);
return -1;
}
s->dsp.put_pixels_tab[1][0](s->pixel_ptr, src->data[0] + motion_offset, s->current_frame.linesize[0], 8);
s->dsp.put_pixels_tab[!s->is_16bpp][0](s->pixel_ptr, src->data[0] + motion_offset, s->current_frame.linesize[0], 8);
return 0;
}
@ -576,15 +576,19 @@ static void ipvideo_decode_opcodes(IpvideoContext *s)
debug_interplay("------------------ frame %d\n", frame);
frame++;
if (!s->is_16bpp) {
/* this is PAL8, so make the palette available */
memcpy(s->current_frame.data[1], s->avctx->palctrl->palette, PALETTE_COUNT * 4);
s->stride = s->current_frame.linesize[0];
s->stream_ptr = s->buf + 14; /* data starts 14 bytes in */
s->stream_end = s->buf + s->size;
} else {
s->stride = s->current_frame.linesize[0] >> 1;
}
s->line_inc = s->stride - 8;
s->upper_motion_limit_offset = (s->avctx->height - 8) * s->stride
+ s->avctx->width - 8;
+ (s->avctx->width - 8) * (1 + s->is_16bpp);
init_get_bits(&gb, s->decoding_map, s->decoding_map_size * 8);
for (y = 0; y < s->avctx->height; y += 8) {
@ -594,9 +598,14 @@ static void ipvideo_decode_opcodes(IpvideoContext *s)
debug_interplay(" block @ (%3d, %3d): encoding 0x%X, data ptr @ %p\n",
x, y, opcode, s->stream_ptr);
if (!s->is_16bpp) {
s->pixel_ptr = s->current_frame.data[0] + x
+ y*s->current_frame.linesize[0];
ret = ipvideo_decode_block[opcode](s);
} else {
s->pixel_ptr = s->current_frame.data[0] + x*2
+ y*s->current_frame.linesize[0];
}
if (ret != 0) {
av_log(s->avctx, AV_LOG_ERROR, " Interplay video: decode problem on frame %d, @ block (%d, %d)\n",
frame, x, y);
@ -664,7 +673,7 @@ static int ipvideo_decode_frame(AVCodecContext *avctx,
ipvideo_decode_opcodes(s);
if (palette_control->palette_changed) {
if (!s->is_16bpp && palette_control->palette_changed) {
palette_control->palette_changed = 0;
s->current_frame.palette_has_changed = 1;
}