From 4d55e9de27894ddfb337b28cd7aa6d14a12666d2 Mon Sep 17 00:00:00 2001 From: Diego Biurrun Date: Mon, 1 Sep 2014 13:57:24 -0700 Subject: vc1: Split bits used in libavformat into a separate header This reduces inter-library dependencies. --- libavcodec/vc1.h | 63 +------------------------------------------------------- 1 file changed, 1 insertion(+), 62 deletions(-) (limited to 'libavcodec/vc1.h') diff --git a/libavcodec/vc1.h b/libavcodec/vc1.h index 9db8eddac2..780344a661 100644 --- a/libavcodec/vc1.h +++ b/libavcodec/vc1.h @@ -27,35 +27,11 @@ #include "h264chroma.h" #include "mpegvideo.h" #include "intrax8.h" +#include "vc1_common.h" #include "vc1dsp.h" #define AC_VLC_BITS 9 -/** Markers used in VC-1 AP frame data */ -//@{ -enum VC1Code { - VC1_CODE_RES0 = 0x00000100, - VC1_CODE_ENDOFSEQ = 0x0000010A, - VC1_CODE_SLICE, - VC1_CODE_FIELD, - VC1_CODE_FRAME, - VC1_CODE_ENTRYPOINT, - VC1_CODE_SEQHDR, -}; -//@} - -#define IS_MARKER(x) (((x) & ~0xFF) == VC1_CODE_RES0) - -/** Available Profiles */ -//@{ -enum Profile { - PROFILE_SIMPLE, - PROFILE_MAIN, - PROFILE_COMPLEX, ///< TODO: WMV9 specific - PROFILE_ADVANCED -}; -//@} - /** Sequence quantizer mode */ //@{ enum QuantMode { @@ -404,43 +380,6 @@ typedef struct VC1Context{ int resync_marker; ///< could this stream contain resync markers } VC1Context; -/** Find VC-1 marker in buffer - * @return position where next marker starts or end of buffer if no marker found - */ -static av_always_inline const uint8_t* find_next_marker(const uint8_t *src, const uint8_t *end) -{ - uint32_t mrk = 0xFFFFFFFF; - - if (end-src < 4) - return end; - while (src < end) { - mrk = (mrk << 8) | *src++; - if (IS_MARKER(mrk)) - return src - 4; - } - return end; -} - -static av_always_inline int vc1_unescape_buffer(const uint8_t *src, int size, uint8_t *dst) -{ - int dsize = 0, i; - - if (size < 4) { - for (dsize = 0; dsize < size; dsize++) - *dst++ = *src++; - return size; - } - for (i = 0; i < size; i++, src++) { - if (src[0] == 3 && i >= 2 && !src[-1] && !src[-2] && i < size-1 && src[1] < 4) { - dst[dsize++] = src[1]; - src++; - i++; - } else - dst[dsize++] = *src; - } - return dsize; -} - /** * Decode Simple/Main Profiles sequence header * @see Figure 7-8, p16-17 -- cgit v1.2.3