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@ -29,7 +29,7 @@ |
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#include "avcodec.h" |
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#include "internal.h" |
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typedef struct QdrawContext{ |
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typedef struct QdrawContext { |
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AVCodecContext *avctx; |
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AVFrame pic; |
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} QdrawContext; |
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@ -38,37 +38,37 @@ static int decode_frame(AVCodecContext *avctx, |
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void *data, int *got_frame, |
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AVPacket *avpkt) |
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{ |
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const uint8_t *buf = avpkt->data; |
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const uint8_t *buf = avpkt->data; |
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const uint8_t *buf_end = avpkt->data + avpkt->size; |
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int buf_size = avpkt->size; |
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int buf_size = avpkt->size; |
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QdrawContext * const a = avctx->priv_data; |
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AVFrame * const p = &a->pic; |
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AVFrame * const p = &a->pic; |
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uint8_t* outdata; |
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int colors; |
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int i, ret; |
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uint32_t *pal; |
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int r, g, b; |
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if(p->data[0]) |
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if (p->data[0]) |
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avctx->release_buffer(avctx, p); |
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p->reference= 0; |
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p->reference = 0; |
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if ((ret = ff_get_buffer(avctx, p)) < 0) { |
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av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); |
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return ret; |
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} |
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p->pict_type= AV_PICTURE_TYPE_I; |
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p->key_frame= 1; |
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p->pict_type = AV_PICTURE_TYPE_I; |
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p->key_frame = 1; |
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outdata = a->pic.data[0]; |
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if (buf_end - buf < 0x68 + 4) |
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return AVERROR_INVALIDDATA; |
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buf += 0x68; /* jump to palette */ |
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buf += 0x68; /* jump to palette */ |
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colors = AV_RB32(buf); |
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buf += 4; |
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buf += 4; |
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if(colors < 0 || colors > 256) { |
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if (colors < 0 || colors > 256) { |
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av_log(avctx, AV_LOG_ERROR, "Error color count - %i(0x%X)\n", colors, colors); |
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return AVERROR_INVALIDDATA; |
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} |
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@ -106,7 +106,7 @@ static int decode_frame(AVCodecContext *avctx, |
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int tsize = 0; |
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/* decode line */ |
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out = outdata; |
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out = outdata; |
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size = AV_RB16(buf); /* size of packed line */ |
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buf += 2; |
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if (buf_end - buf < size) |
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@ -121,18 +121,18 @@ static int decode_frame(AVCodecContext *avctx, |
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if ((out + (257 - code)) > (outdata + a->pic.linesize[0])) |
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break; |
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memset(out, pix, 257 - code); |
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out += 257 - code; |
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out += 257 - code; |
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tsize += 257 - code; |
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left -= 2; |
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left -= 2; |
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} else { /* copy */ |
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if ((out + code) > (outdata + a->pic.linesize[0])) |
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break; |
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if (buf_end - buf < code + 1) |
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return AVERROR_INVALIDDATA; |
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memcpy(out, buf, code + 1); |
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out += code + 1; |
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buf += code + 1; |
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left -= 2 + code; |
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out += code + 1; |
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buf += code + 1; |
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left -= 2 + code; |
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tsize += code + 1; |
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} |
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} |
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@ -146,15 +146,15 @@ static int decode_frame(AVCodecContext *avctx, |
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return buf_size; |
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} |
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static av_cold int decode_init(AVCodecContext *avctx){ |
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// QdrawContext * const a = avctx->priv_data;
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static av_cold int decode_init(AVCodecContext *avctx) |
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{ |
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avctx->pix_fmt= AV_PIX_FMT_PAL8; |
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return 0; |
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} |
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static av_cold int decode_end(AVCodecContext *avctx){ |
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static av_cold int decode_end(AVCodecContext *avctx) |
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{ |
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QdrawContext * const a = avctx->priv_data; |
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AVFrame *pic = &a->pic; |
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