#include "avcodec.h"
#include "bytestream.h"
#include "cga_data.h"
+#include "internal.h"
typedef struct PicContext {
- AVFrame frame;
int width, height;
int nb_planes;
GetByteContext g;
} PicContext;
-static void picmemset_8bpp(PicContext *s, int value, int run, int *x, int *y)
+static void picmemset_8bpp(PicContext *s, AVFrame *frame, int value, int run,
+ int *x, int *y)
{
while (run > 0) {
- uint8_t *d = s->frame.data[0] + *y * s->frame.linesize[0];
+ uint8_t *d = frame->data[0] + *y * frame->linesize[0];
if (*x + run >= s->width) {
int n = s->width - *x;
memset(d + *x, value, n);
}
}
-static void picmemset(PicContext *s, int value, int run,
+static void picmemset(PicContext *s, AVFrame *frame, int value, int run,
int *x, int *y, int *plane, int bits_per_plane)
{
uint8_t *d;
while (run > 0) {
int j;
for (j = 8-bits_per_plane; j >= 0; j -= bits_per_plane) {
- d = s->frame.data[0] + *y * s->frame.linesize[0];
+ d = frame->data[0] + *y * frame->linesize[0];
d[*x] |= (value >> j) & mask;
*x += 1;
if (*x == s->width) {
};
static int decode_frame(AVCodecContext *avctx,
- void *data, int *data_size,
+ void *data, int *got_frame,
AVPacket *avpkt)
{
PicContext *s = avctx->priv_data;
+ AVFrame *frame = data;
uint32_t *palette;
int bits_per_plane, bpp, etype, esize, npal, pos_after_pal;
- int i, x, y, plane, tmp;
+ int i, x, y, plane, tmp, ret;
bytestream2_init(&s->g, avpkt->data, avpkt->size);
s->nb_planes = (tmp >> 4) + 1;
bpp = bits_per_plane * s->nb_planes;
if (bits_per_plane > 8 || bpp < 1 || bpp > 32) {
- av_log_ask_for_sample(s, "unsupported bit depth\n");
- return AVERROR_INVALIDDATA;
+ avpriv_request_sample(avctx, "Unsupported bit depth");
+ return AVERROR_PATCHWELCOME;
}
if (bytestream2_peek_byte(&s->g) == 0xFF) {
esize = 0;
}
- avctx->pix_fmt = PIX_FMT_PAL8;
+ avctx->pix_fmt = AV_PIX_FMT_PAL8;
if (s->width != avctx->width && s->height != avctx->height) {
- if (av_image_check_size(s->width, s->height, 0, avctx) < 0)
- return -1;
- avcodec_set_dimensions(avctx, s->width, s->height);
- if (s->frame.data[0])
- avctx->release_buffer(avctx, &s->frame);
+ ret = ff_set_dimensions(avctx, s->width, s->height);
+ if (ret < 0)
+ return ret;
}
- if (avctx->get_buffer(avctx, &s->frame) < 0){
+ if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
- return -1;
+ return ret;
}
- memset(s->frame.data[0], 0, s->height * s->frame.linesize[0]);
- s->frame.pict_type = AV_PICTURE_TYPE_I;
- s->frame.palette_has_changed = 1;
+ memset(frame->data[0], 0, s->height * frame->linesize[0]);
+ frame->pict_type = AV_PICTURE_TYPE_I;
+ frame->palette_has_changed = 1;
pos_after_pal = bytestream2_tell(&s->g) + esize;
- palette = (uint32_t*)s->frame.data[1];
+ palette = (uint32_t*)frame->data[1];
if (etype == 1 && esize > 1 && bytestream2_peek_byte(&s->g) < 6) {
int idx = bytestream2_get_byte(&s->g);
npal = 4;
break;
if (bits_per_plane == 8) {
- picmemset_8bpp(s, val, run, &x, &y);
+ picmemset_8bpp(s, frame, val, run, &x, &y);
if (y < 0)
- break;
+ goto finish;
} else {
- picmemset(s, val, run, &x, &y, &plane, bits_per_plane);
+ picmemset(s, frame, val, run, &x, &y, &plane, bits_per_plane);
}
}
}
} else {
- av_log_ask_for_sample(s, "uncompressed image\n");
+ avpriv_request_sample(avctx, "Uncompressed image");
return avpkt->size;
}
+finish:
- *data_size = sizeof(AVFrame);
- *(AVFrame*)data = s->frame;
+ *got_frame = 1;
return avpkt->size;
}
-static av_cold int decode_end(AVCodecContext *avctx)
-{
- PicContext *s = avctx->priv_data;
- if (s->frame.data[0])
- avctx->release_buffer(avctx, &s->frame);
- return 0;
-}
-
AVCodec ff_pictor_decoder = {
.name = "pictor",
+ .long_name = NULL_IF_CONFIG_SMALL("Pictor/PC Paint"),
.type = AVMEDIA_TYPE_VIDEO,
- .id = CODEC_ID_PICTOR,
+ .id = AV_CODEC_ID_PICTOR,
.priv_data_size = sizeof(PicContext),
- .close = decode_end,
.decode = decode_frame,
.capabilities = CODEC_CAP_DR1,
- .long_name = NULL_IF_CONFIG_SMALL("Pictor/PC Paint"),
};