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Viewing changes to ffmpeg/libavcodec/rtjpeg.c

  • Committer: Bazaar Package Importer
  • Author(s): Lionel Le Folgoc
  • Date: 2008-12-26 00:10:06 UTC
  • mto: This revision was merged to the branch mainline in revision 8.
  • Revision ID: james.westby@ubuntu.com-20081226001006-wd8cuqn8d81smkdp
Tags: upstream-1.1.7
Import upstream version 1.1.7

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ffmpeg/libavcodec/rtjpeg.c
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 *
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 * Note: GetBitContext is used to make the code simpler, since all data is
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 * aligned this could be done faster in a different way, e.g. as it is done
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 * in MPlayer libmpcodecs/native/RTjpegN.c
 
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 * in MPlayer libmpcodecs/native/rtjpegn.c.
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 */
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static inline int get_block(GetBitContext *gb, DCTELEM *block, uint8_t *scan,
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                            uint32_t *quant) {
 
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static inline int get_block(GetBitContext *gb, DCTELEM *block, const uint8_t *scan,
 
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                            const uint32_t *quant) {
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    int coeff, i, n;
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    int8_t ac;
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    uint8_t dc = get_bits(gb, 8);
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 * \return number of bytes consumed from the input buffer
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 */
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int rtjpeg_decode_frame_yuv420(RTJpegContext *c, AVFrame *f,
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                               uint8_t *buf, int buf_size) {
 
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                               const uint8_t *buf, int buf_size) {
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    DECLARE_ALIGNED_16(DCTELEM, block[64]);
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    GetBitContext gb;
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    int w = c->w / 16, h = c->h / 16;
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 */
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void rtjpeg_decode_init(RTJpegContext *c, DSPContext *dsp,
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                        int width, int height,
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                        uint32_t *lquant, uint32_t *cquant) {
 
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                        const uint32_t *lquant, const uint32_t *cquant) {
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    int i;
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    c->dsp = dsp;
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    for (i = 0; i < 64; i++) {