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motionpixels: use the AVFrame API properly.

This commit is contained in:
Anton Khirnov 2013-11-09 10:14:46 +01:00
parent aca214783a
commit e52f38bc2e
1 changed files with 28 additions and 22 deletions
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50
libavcodec/motionpixels.c
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@ -36,7 +36,7 @@ typedef struct HuffCode {
typedef struct MotionPixelsContext {
AVCodecContext *avctx;
AVFrame frame;
AVFrame *frame;
DSPContext dsp;
uint8_t *changes_map;
int offset_bits_len;
@ -50,6 +50,19 @@ typedef struct MotionPixelsContext {
int bswapbuf_size;
} MotionPixelsContext;
static av_cold int mp_decode_end(AVCodecContext *avctx)
{
MotionPixelsContext *mp = avctx->priv_data;
av_freep(&mp->changes_map);
av_freep(&mp->vpt);
av_freep(&mp->hpt);
av_freep(&mp->bswapbuf);
av_frame_free(&mp->frame);
return 0;
}
static av_cold int mp_decode_init(AVCodecContext *avctx)
{
MotionPixelsContext *mp = avctx->priv_data;
@ -64,7 +77,13 @@ static av_cold int mp_decode_init(AVCodecContext *avctx)
mp->vpt = av_mallocz(avctx->height * sizeof(YuvPixel));
mp->hpt = av_mallocz(h4 * w4 / 16 * sizeof(YuvPixel));
avctx->pix_fmt = AV_PIX_FMT_RGB555;
avcodec_get_frame_defaults(&mp->frame);
mp->frame = av_frame_alloc();
if (!mp->frame) {
mp_decode_end(avctx);
return AVERROR(ENOMEM);
}
return 0;
}
@ -85,14 +104,14 @@ static void mp_read_changes_map(MotionPixelsContext *mp, GetBitContext *gb, int
continue;
w = FFMIN(w, mp->avctx->width - x);
h = FFMIN(h, mp->avctx->height - y);
pixels = (uint16_t *)&mp->frame.data[0][y * mp->frame.linesize[0] + x * 2];
pixels = (uint16_t *)&mp->frame->data[0][y * mp->frame->linesize[0] + x * 2];
while (h--) {
mp->changes_map[offset] = w;
if (read_color)
for (i = 0; i < w; ++i)
pixels[i] = color;
offset += mp->avctx->width;
pixels += mp->frame.linesize[0] / 2;
pixels += mp->frame->linesize[0] / 2;
}
}
}
@ -144,7 +163,7 @@ static YuvPixel mp_get_yuv_from_rgb(MotionPixelsContext *mp, int x, int y)
{
int color;
color = *(uint16_t *)&mp->frame.data[0][y * mp->frame.linesize[0] + x * 2];
color = *(uint16_t *)&mp->frame->data[0][y * mp->frame->linesize[0] + x * 2];
return mp_rgb_yuv_table[color];
}
@ -153,7 +172,7 @@ static void mp_set_rgb_from_yuv(MotionPixelsContext *mp, int x, int y, const Yuv
int color;
color = mp_yuv_to_rgb(p->y, p->v, p->u, 1);
*(uint16_t *)&mp->frame.data[0][y * mp->frame.linesize[0] + x * 2] = color;
*(uint16_t *)&mp->frame->data[0][y * mp->frame->linesize[0] + x * 2] = color;
}
static int mp_get_vlc(MotionPixelsContext *mp, GetBitContext *gb)
@ -248,7 +267,7 @@ static int mp_decode_frame(AVCodecContext *avctx,
GetBitContext gb;
int i, count1, count2, sz, ret;
if ((ret = ff_reget_buffer(avctx, &mp->frame)) < 0) {
if ((ret = ff_reget_buffer(avctx, mp->frame)) < 0) {
av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
return ret;
}
@ -276,7 +295,7 @@ static int mp_decode_frame(AVCodecContext *avctx,
goto end;
if (mp->changes_map[0] == 0) {
*(uint16_t *)mp->frame.data[0] = get_bits(&gb, 15);
*(uint16_t *)mp->frame->data[0] = get_bits(&gb, 15);
mp->changes_map[0] = 1;
}
mp_read_codes_table(mp, &gb);
@ -295,25 +314,12 @@ static int mp_decode_frame(AVCodecContext *avctx,
ff_free_vlc(&mp->vlc);
end:
if ((ret = av_frame_ref(data, &mp->frame)) < 0)
if ((ret = av_frame_ref(data, mp->frame)) < 0)
return ret;
*got_frame = 1;
return buf_size;
}
static av_cold int mp_decode_end(AVCodecContext *avctx)
{
MotionPixelsContext *mp = avctx->priv_data;
av_freep(&mp->changes_map);
av_freep(&mp->vpt);
av_freep(&mp->hpt);
av_freep(&mp->bswapbuf);
av_frame_unref(&mp->frame);
return 0;
}
AVCodec ff_motionpixels_decoder = {
.name = "motionpixels",
.long_name = NULL_IF_CONFIG_SMALL("Motion Pixels video"),