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gst/audioconvert/audioconvert.*: Cleanups, speedups, simplifications, added back support for 24 bits.
Original commit message from CVS: * gst/audioconvert/audioconvert.c: (float), (audio_convert_prepare_context), (audio_convert_convert): * gst/audioconvert/audioconvert.h: Cleanups, speedups, simplifications, added back support for 24 bits.
This commit is contained in:
Wim Taymans
parent
9e01408713
commit
1237e1e701
3 changed files with 97 additions and 100 deletions
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@ -1,3 +1,11 @@
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2005-09-12 Wim Taymans <wim@fluendo.com>
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* gst/audioconvert/audioconvert.c: (float),
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(audio_convert_prepare_context), (audio_convert_convert):
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* gst/audioconvert/audioconvert.h:
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Cleanups, speedups, simplifications, added back support
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for 24 bits.
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2005-09-11 Thomas Vander Stichele <thomas at apestaart dot org>
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* docs/plugins/gst-plugins-base-plugins-docs.sgml:
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@ -31,71 +31,31 @@
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/* int to float conversion: int2float(i) = 1 / (2^31-1) * i */
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#define INT2FLOAT(i) (4.6566128752457969e-10 * ((gfloat)i))
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#define UNPACK_CODE(type, corr, E_FUNC) \
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type* p = (type *) src; \
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gint64 tmp; \
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for (;count; count--) { \
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tmp = ((gint64) E_FUNC (*p) - corr) * scale; \
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*dst++ = CLAMP (tmp, -((gint64) 1 << 32), (gint64) 0x7FFFFFFF); \
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p++; \
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}
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/* sign bit in the intermediate format */
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#define SIGNED (1<<31)
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/***
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* unpack code
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*/
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#define MAKE_UNPACK_FUNC_NAME(name) \
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audio_convert_unpack_##name
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/* unsigned case */
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#define MAKE_UNPACK_FUNC_U(name, type, E_FUNC) \
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#define MAKE_UNPACK_FUNC(name, stride, sign, READ_FUNC) \
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static void \
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MAKE_UNPACK_FUNC_NAME (name) (gpointer src, gint32 *dst, \
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gint64 scale, gint count) \
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gint scale, gint count) \
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{ \
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UNPACK_CODE(type, (1 << (sizeof (type) * 8 - 1)), E_FUNC); \
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guint8* p = (guint8 *) src; \
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for (;count; count--) { \
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*dst++ = (((gint32) READ_FUNC (p)) << scale) ^ (sign); \
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p+=stride; \
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} \
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}
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/* signed case */
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#define MAKE_UNPACK_FUNC_S(name, type, E_FUNC) \
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static void \
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MAKE_UNPACK_FUNC_NAME (name) (gpointer src, gint32 *dst, \
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gint64 scale, gint count) \
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{ \
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UNPACK_CODE(type, 0, E_FUNC); \
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}
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MAKE_UNPACK_FUNC_U (u8, guint8, /* nothing */ );
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MAKE_UNPACK_FUNC_S (s8, gint8, /* nothing */ );
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MAKE_UNPACK_FUNC_U (u16_le, guint16, GUINT16_FROM_LE);
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MAKE_UNPACK_FUNC_S (s16_le, gint16, GINT16_FROM_LE);
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MAKE_UNPACK_FUNC_U (u16_be, guint16, GUINT16_FROM_BE);
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MAKE_UNPACK_FUNC_S (s16_be, gint16, GINT16_FROM_BE);
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MAKE_UNPACK_FUNC_U (u32_le, guint32, GUINT32_FROM_LE);
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MAKE_UNPACK_FUNC_S (s32_le, gint32, GINT32_FROM_LE);
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MAKE_UNPACK_FUNC_U (u32_be, guint32, GUINT32_FROM_BE);
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MAKE_UNPACK_FUNC_S (s32_be, gint32, GINT32_FROM_BE);
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/* FIXME 24 bits */
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#if 0
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gint64 cur = 0;
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/* FIXME */
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/* Read 24-bits LE/BE into signed 64 host-endian */
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if (this->sinkcaps.endianness == G_LITTLE_ENDIAN) {
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cur = src[0] | (src[1] << 8) | (src[2] << 16);
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} else {
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cur = src[2] | (src[1] << 8) | (src[0] << 16);
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}
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/* Sign extend */
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if ((this->sinkcaps.sign)
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&& (cur & (1 << (this->sinkcaps.depth - 1))))
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cur |= ((gint64) (-1)) ^ ((1 << this->sinkcaps.depth) - 1);
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src -= 3;
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#endif
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/* special unpack code for float */
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static void
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MAKE_UNPACK_FUNC_NAME (float) (gpointer src, gint32 * dst,
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gint64 scale, gint count)
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gint scale, gint count)
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{
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gfloat *p = (gfloat *) src;
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gfloat temp;
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@ -106,46 +66,52 @@ MAKE_UNPACK_FUNC_NAME (float) (gpointer src, gint32 * dst,
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}
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}
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#define PACK_CODE(type, corr, E_FUNC) \
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type* p = (type *) dst; \
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gint32 scale = (32 - depth); \
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for (;count; count--) { \
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*p = E_FUNC ((type)((*src) >> scale) + corr); \
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p++; src++; \
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}
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#define READ8(p) GST_READ_UINT8(p)
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#define READ16_FROM_LE(p) GST_READ_UINT16_LE (p)
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#define READ16_FROM_BE(p) GST_READ_UINT16_BE (p)
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#define READ24_FROM_LE(p) (p[0] | (p[1] << 8) | (p[2] << 16))
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#define READ24_FROM_BE(p) (p[2] | (p[1] << 8) | (p[0] << 16))
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#define READ32_FROM_LE(p) GST_READ_UINT32_LE (p)
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#define READ32_FROM_BE(p) GST_READ_UINT32_BE (p)
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MAKE_UNPACK_FUNC (u8, 1, SIGNED, READ8);
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MAKE_UNPACK_FUNC (s8, 1, 0, READ8);
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MAKE_UNPACK_FUNC (u16_le, 2, SIGNED, READ16_FROM_LE);
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MAKE_UNPACK_FUNC (s16_le, 2, 0, READ16_FROM_LE);
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MAKE_UNPACK_FUNC (u16_be, 2, SIGNED, READ16_FROM_BE);
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MAKE_UNPACK_FUNC (s16_be, 2, 0, READ16_FROM_BE);
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MAKE_UNPACK_FUNC (u24_le, 3, SIGNED, READ24_FROM_LE);
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MAKE_UNPACK_FUNC (s24_le, 3, 0, READ24_FROM_LE);
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MAKE_UNPACK_FUNC (u24_be, 3, SIGNED, READ24_FROM_BE);
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MAKE_UNPACK_FUNC (s24_be, 3, 0, READ24_FROM_BE);
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MAKE_UNPACK_FUNC (u32_le, 4, SIGNED, READ32_FROM_LE);
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MAKE_UNPACK_FUNC (s32_le, 4, 0, READ32_FROM_LE);
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MAKE_UNPACK_FUNC (u32_be, 4, SIGNED, READ32_FROM_BE);
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MAKE_UNPACK_FUNC (s32_be, 4, 0, READ32_FROM_BE);
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/***
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* packing code
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*/
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#define MAKE_PACK_FUNC_NAME(name) \
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audio_convert_pack_##name
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#define MAKE_PACK_FUNC_U(name, type, E_FUNC) \
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#define MAKE_PACK_FUNC(name, stride, sign, WRITE_FUNC) \
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static void \
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MAKE_PACK_FUNC_NAME (name) (gint32 *src, gpointer dst, \
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gint depth, gint count) \
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gint scale, gint count) \
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{ \
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PACK_CODE (type, (1 << (depth - 1)), E_FUNC); \
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guint8 *p = (guint8 *)dst; \
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guint32 tmp; \
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for (;count; count--) { \
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tmp = (*src++ ^ (sign)) >> scale; \
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WRITE_FUNC (p, tmp); \
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p+=stride; \
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} \
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}
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#define MAKE_PACK_FUNC_S(name, type, E_FUNC) \
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static void \
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MAKE_PACK_FUNC_NAME (name) (gint32 *src, gpointer dst, \
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gint depth, gint count) \
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{ \
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PACK_CODE (type, 0, E_FUNC); \
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}
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MAKE_PACK_FUNC_U (u8, guint8, /* nothing */ );
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MAKE_PACK_FUNC_S (s8, gint8, /* nothing */ );
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MAKE_PACK_FUNC_U (u16_le, guint16, GUINT16_TO_LE);
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MAKE_PACK_FUNC_S (s16_le, gint16, GINT16_TO_LE);
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MAKE_PACK_FUNC_U (u16_be, guint16, GUINT16_TO_BE);
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MAKE_PACK_FUNC_S (s16_be, gint16, GINT16_TO_BE);
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MAKE_PACK_FUNC_U (u32_le, guint32, GUINT32_TO_LE);
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MAKE_PACK_FUNC_S (s32_le, gint32, GINT32_TO_LE);
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MAKE_PACK_FUNC_U (u32_be, guint32, GUINT32_TO_BE);
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MAKE_PACK_FUNC_S (s32_be, gint32, GINT32_TO_BE);
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/* special float pack function */
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static void
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MAKE_PACK_FUNC_NAME (float) (gint32 * src, gpointer dst, gint depth, gint count)
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MAKE_PACK_FUNC_NAME (float) (gint32 * src, gpointer dst, gint scale, gint count)
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{
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gfloat *p = (gfloat *) dst;
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@ -154,6 +120,29 @@ MAKE_PACK_FUNC_NAME (float) (gint32 * src, gpointer dst, gint depth, gint count)
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}
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}
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#define WRITE8(p, v) GST_WRITE_UINT8 (p, v)
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#define WRITE16_TO_LE(p,v) GST_WRITE_UINT16_LE (p, (guint16)(v))
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#define WRITE16_TO_BE(p,v) GST_WRITE_UINT16_BE (p, (guint16)(v))
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#define WRITE24_TO_LE(p,v) p[0] = v & 0xff; p[1] = (v >> 8) & 0xff; p[2] = (v >> 16) & 0xff
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#define WRITE24_TO_BE(p,v) p[2] = v & 0xff; p[1] = (v >> 8) & 0xff; p[0] = (v >> 16) & 0xff
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#define WRITE32_TO_LE(p,v) GST_WRITE_UINT32_LE (p, (guint32)(v))
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#define WRITE32_TO_BE(p,v) GST_WRITE_UINT32_BE (p, (guint32)(v))
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MAKE_PACK_FUNC (u8, 1, SIGNED, WRITE8);
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MAKE_PACK_FUNC (s8, 1, 0, WRITE8);
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MAKE_PACK_FUNC (u16_le, 2, SIGNED, WRITE16_TO_LE);
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MAKE_PACK_FUNC (s16_le, 2, 0, WRITE16_TO_LE);
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MAKE_PACK_FUNC (u16_be, 2, SIGNED, WRITE16_TO_BE);
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MAKE_PACK_FUNC (s16_be, 2, 0, WRITE16_TO_BE);
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MAKE_PACK_FUNC (u24_le, 3, SIGNED, WRITE24_TO_LE);
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MAKE_PACK_FUNC (s24_le, 3, 0, WRITE24_TO_LE);
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MAKE_PACK_FUNC (u24_be, 3, SIGNED, WRITE24_TO_BE);
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MAKE_PACK_FUNC (s24_be, 3, 0, WRITE24_TO_BE);
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MAKE_PACK_FUNC (u32_le, 4, SIGNED, WRITE32_TO_LE);
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MAKE_PACK_FUNC (s32_le, 4, 0, WRITE32_TO_LE);
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MAKE_PACK_FUNC (u32_be, 4, SIGNED, WRITE32_TO_BE);
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MAKE_PACK_FUNC (s32_be, 4, 0, WRITE32_TO_BE);
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static AudioConvertUnpack unpack_funcs[] = {
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MAKE_UNPACK_FUNC_NAME (u8),
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MAKE_UNPACK_FUNC_NAME (s8),
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@ -163,10 +152,10 @@ static AudioConvertUnpack unpack_funcs[] = {
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MAKE_UNPACK_FUNC_NAME (s16_le),
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MAKE_UNPACK_FUNC_NAME (u16_be),
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MAKE_UNPACK_FUNC_NAME (s16_be),
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NULL,
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NULL,
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NULL,
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NULL,
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MAKE_UNPACK_FUNC_NAME (u24_le),
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MAKE_UNPACK_FUNC_NAME (s24_le),
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MAKE_UNPACK_FUNC_NAME (u24_be),
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MAKE_UNPACK_FUNC_NAME (s24_be),
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MAKE_UNPACK_FUNC_NAME (u32_le),
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MAKE_UNPACK_FUNC_NAME (s32_le),
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MAKE_UNPACK_FUNC_NAME (u32_be),
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@ -183,10 +172,10 @@ static AudioConvertPack pack_funcs[] = {
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MAKE_PACK_FUNC_NAME (s16_le),
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MAKE_PACK_FUNC_NAME (u16_be),
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MAKE_PACK_FUNC_NAME (s16_be),
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NULL,
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NULL,
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NULL,
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NULL,
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MAKE_PACK_FUNC_NAME (u24_le),
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MAKE_PACK_FUNC_NAME (s24_le),
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MAKE_PACK_FUNC_NAME (u24_be),
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MAKE_PACK_FUNC_NAME (s24_be),
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MAKE_PACK_FUNC_NAME (u32_le),
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MAKE_PACK_FUNC_NAME (s32_le),
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MAKE_PACK_FUNC_NAME (u32_be),
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@ -261,8 +250,8 @@ audio_convert_prepare_context (AudioConvertCtx * ctx, AudioConvertFmt * in,
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/* check if output is in default format */
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ctx->out_default = check_default (out);
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ctx->scale = ((gint64) 1 << (32 - in->depth));
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ctx->depth = out->depth;
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ctx->in_scale = 32 - in->depth;
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ctx->out_scale = 32 - out->depth;
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return TRUE;
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@ -348,7 +337,7 @@ audio_convert_convert (AudioConvertCtx * ctx, gpointer src,
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outbuf = dst;
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/* unpack to default format */
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ctx->unpack (src, outbuf, ctx->scale, samples * ctx->in.channels);
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ctx->unpack (src, outbuf, ctx->in_scale, samples * ctx->in.channels);
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src = outbuf;
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}
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@ -368,7 +357,7 @@ audio_convert_convert (AudioConvertCtx * ctx, gpointer src,
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if (!ctx->out_default) {
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/* pack default format into dst */
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ctx->pack (src, dst, ctx->depth, samples * ctx->out.channels);
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ctx->pack (src, dst, ctx->out_scale, samples * ctx->out.channels);
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}
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return TRUE;
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@ -48,8 +48,8 @@ struct _AudioConvertFmt
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gint unit_size;
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};
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typedef void (*AudioConvertUnpack) (gpointer src, gint32 *dst, gint64 scale, gint count);
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typedef void (*AudioConvertPack) (gint32 *src, gpointer dst, gint depth, gint count);
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typedef void (*AudioConvertUnpack) (gpointer src, gint32 *dst, gint scale, gint count);
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typedef void (*AudioConvertPack) (gint32 *src, gpointer dst, gint scale, gint count);
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struct _AudioConvertCtx
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{
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@ -70,8 +70,8 @@ struct _AudioConvertCtx
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gpointer tmpbuf;
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gint tmpbufsize;
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gint64 scale;
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gint depth;
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gint in_scale;
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gint out_scale;
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};
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gboolean audio_convert_clean_fmt (AudioConvertFmt *fmt);
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