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beos/mov/adpcm patch by François Revol <revol at free dot fr>
* Some BeOS fixes:
- errno stuff
- nanosleep() replacement
- added a doc/README.beos
* mov reader still has problems with most videos (skips many chunks),
- It should now read .mov files with zlib-compressed moov headers (aka cmov)
- added SVQ1 support.
- removed mapping 'raw ' and 'yuv2' to h263, was my mistake.
- added IMA4 support. (tested)
- fixed frame rate (it reported 0 fps or something before)
- extended file probing ('wide' and 'free' atoms)
- improved .mov/.mp4 detection (or so I think)
* adpcm
* added zlib support, with header file and lib check
Originally committed as revision 780 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
François Revol
Michael Niedermayer
parent
e1707f52d5
commit
0147f19856
3
berrno.h
3
berrno.h
@ -3,6 +3,9 @@
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#include <Errors.h>
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// mmu_man: this is needed for http.c (defined errno)
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#include <errno.h>
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#ifdef ENOENT
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#undef ENOENT
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#endif
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29
configure
vendored
29
configure
vendored
@ -43,6 +43,7 @@ gprof="no"
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v4l="yes"
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audio_oss="yes"
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network="yes"
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zlib="yes"
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mp3lame="no"
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a52="yes"
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a52bin="no"
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@ -123,6 +124,8 @@ for opt do
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;;
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--disable-network) network="no"
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;;
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--disable-zlib) zlib="no"
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;;
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--disable-a52) a52="no"
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;;
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--enable-a52bin) a52bin="yes" ; extralibs="-ldl $extralibs"
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@ -195,6 +198,25 @@ EOF
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$cc -o $TMPO $TMPC 2> /dev/null || _memalign=no
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fi
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if test "$zlib" = "yes"; then
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# check for zlib - mmu_man
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cat > $TMPC << EOF
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#include <zlib.h>
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int main ( void ) {
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if (zlibVersion() != ZLIB_VERSION)
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puts("zlib version differs !!!");
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return 1;
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return 0;
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}
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EOF
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$cc -o $TMPO $TMPC -lz 2> /dev/null || zlib="no"
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# $TMPO 2> /dev/null > /dev/null || zlib="no"
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# XXX: more tests needed - runtime test
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fi
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if test "$zlib" = "yes"; then
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extralibs="$extralibs -lz"
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fi
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_restrict=
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for restrict_keyword in restrict __restrict__ __restrict; do
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echo "void foo(char * $restrict_keyword p);" > $TMPC
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@ -233,6 +255,7 @@ echo " --disable-mmx disable mmx usage"
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echo " --disable-audio-oss disable OSS audio support [default=no]"
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echo " --disable-v4l disable video4linux grabbing [default=no]"
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echo " --disable-network disable network support [default=no]"
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echo " --disable-zlib disable zlib [default=no]"
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echo " --disable-simple_idct disable simple IDCT routines [default=no]"
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echo " --enable-gprof enable profiling with gprof [$gprof]"
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echo " --disable-mpegaudio-hp faster (but less accurate)"
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@ -250,6 +273,7 @@ echo "CPU $cpu"
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echo "Big Endian $bigendian"
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echo "MMX enabled $mmx"
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echo "gprof enabled $gprof"
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echo "zlib enabled $zlib"
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echo "mp3lame enabled $mp3lame"
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echo "a52 support $a52"
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echo "a52 dlopened $a52bin"
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@ -339,6 +363,11 @@ if test "$network" = "yes" ; then
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echo "CONFIG_NETWORK=yes" >> config.mak
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fi
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if test "$zlib" = "yes" ; then
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echo "#define CONFIG_ZLIB 1" >> $TMPH
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echo "CONFIG_ZLIB=yes" >> config.mak
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fi
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if test "$mp3lame" = "yes" ; then
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echo "#define CONFIG_MP3LAME 1" >> $TMPH
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echo "CONFIG_MP3LAME=yes" >> config.mak
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23
doc/README.beos
Normal file
23
doc/README.beos
Normal file
@ -0,0 +1,23 @@
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Compilation on BeOS:
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--------------------
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François Revol - revol@free.fr - July 2002
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The configure script should guess the configuration itself.
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Networking support is currently not finished.
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errno issues fixed by Andrew Bachmann.
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Old stuff:
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François Revol - revol@free.fr - April 2002
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The configure script should guess the configuration itself,
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however I still didn't tested building on net_server version of BeOS.
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ffserver is broken (needs poll() implementation).
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There is still issues with errno codes, which are negative in BeOs, and
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that ffmpeg negates when returning. This ends up turning errors into
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valid results, then crashes.
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(To be fixed)
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173
libav/mov.c
173
libav/mov.c
@ -19,12 +19,17 @@
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#include "avformat.h"
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#include "avi.h"
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#ifdef CONFIG_ZLIB
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#include <zlib.h>
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#endif
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/*
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* First version by Francois Revol revol@free.fr
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*
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* Features and limitations:
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* - reads most of the QT files I have (at least the structure),
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* the exceptions are .mov with zlib compressed headers ('cmov' section). It shouldn't be hard to implement.
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* FIXED, Francois Revol, 07/17/2002
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* - ffmpeg has nearly none of the usual QuickTime codecs,
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* although I succesfully dumped raw and mp3 audio tracks off .mov files.
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* Sample QuickTime files with mp3 audio can be found at: http://www.3ivx.com/showcase.html
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@ -79,8 +84,8 @@ void print_atom(const char *str, UINT32 type, UINT64 offset, UINT64 size)
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static const CodecTag mov_video_tags[] = {
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/* { CODEC_ID_, MKTAG('c', 'v', 'i', 'd') }, *//* Cinepak */
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/* { CODEC_ID_JPEG, MKTAG('j', 'p', 'e', 'g') }, *//* JPEG */
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{ CODEC_ID_H263, MKTAG('r', 'a', 'w', ' ') }, /* Uncompressed RGB */
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{ CODEC_ID_H263, MKTAG('Y', 'u', 'v', '2') }, /* Uncompressed YUV422 */
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/* { CODEC_ID_H263, MKTAG('r', 'a', 'w', ' ') }, *//* Uncompressed RGB */
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/* { CODEC_ID_H263, MKTAG('Y', 'u', 'v', '2') }, *//* Uncompressed YUV422 */
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/* Graphics */
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/* Animation */
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/* Apple video */
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@ -91,9 +96,12 @@ static const CodecTag mov_video_tags[] = {
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{ CODEC_ID_MJPEG, MKTAG('m', 'j', 'p', 'b') }, /* Motion-JPEG (format B) */
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/* { CODEC_ID_GIF, MKTAG('g', 'i', 'f', ' ') }, *//* embedded gif files as frames (usually one "click to play movie" frame) */
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/* Sorenson video */
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{ CODEC_ID_SVQ1, MKTAG('S', 'V', 'Q', '1') }, /* Sorenson Video v1 */
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{ CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') }, /* Sorenson Video v1 */
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{ CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') }, /* OpenDiVX *//* yeah ! */
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{ CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X') }, /* OpenDiVX *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */
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/* { CODEC_ID_, MKTAG('I', 'V', '5', '0') }, *//* Indeo 5.0 */
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{ CODEC_ID_H263, MKTAG('h', '2', '6', '3') }, /* H263 */
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{ 0, 0 },
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};
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@ -105,7 +113,7 @@ static const CodecTag mov_audio_tags[] = {
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{ CODEC_ID_PCM_S16LE, MKTAG('s', 'o', 'w', 't') }, /* */
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{ CODEC_ID_PCM_MULAW, MKTAG('u', 'l', 'a', 'w') }, /* */
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{ CODEC_ID_PCM_ALAW, MKTAG('a', 'l', 'a', 'w') }, /* */
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/* { CODEC_ID_, MKTAG('i', 'm', 'a', '4') }, *//* IMA-4 */
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{ CODEC_ID_ADPCM_IMA_QT, MKTAG('i', 'm', 'a', '4') }, /* IMA-4 ADPCM */
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{ CODEC_ID_MP2, MKTAG('.', 'm', 'p', '3') }, /* MPEG layer 3 */ /* sample files at http://www.3ivx.com/showcase.html use this tag */
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{ CODEC_ID_MP2, 0x6D730055 }, /* MPEG layer 3 */
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@ -139,6 +147,7 @@ typedef struct MOVStreamContext {
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long sample_size;
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long sample_count;
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long *sample_sizes;
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long time_scale;
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} MOVStreamContext;
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typedef struct MOVContext {
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@ -266,6 +275,9 @@ static int parse_mvhd(const MOVParseTableEntry *parse_table, ByteIOContext *pb,
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get_be32(pb); /* creation time */
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get_be32(pb); /* modification time */
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c->time_scale = get_be32(pb); /* time scale */
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#ifdef DEBUG
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printf("time scale = %li\n", c->time_scale);
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#endif
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get_be32(pb); /* duration */
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get_be32(pb); /* preferred scale */
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@ -390,6 +402,38 @@ static int parse_tkhd(const MOVParseTableEntry *parse_table, ByteIOContext *pb,
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return 0;
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}
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static int parse_mdhd(const MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
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{
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MOVContext *c;
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AVStream *st;
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#ifdef DEBUG
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print_atom("mdhd", atom_type, atom_offset, atom_size);
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#endif
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c = (MOVContext *)param;
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st = c->fc->streams[c->fc->nb_streams-1];
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get_byte(pb); /* version */
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get_byte(pb); get_byte(pb);
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get_byte(pb); /* flags */
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get_be32(pb); /* creation time */
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get_be32(pb); /* modification time */
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c->streams[c->total_streams]->time_scale = get_be32(pb);
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#ifdef DEBUG
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printf("track[%i].time_scale = %li\n", c->fc->nb_streams-1, c->streams[c->total_streams]->time_scale); /* time scale */
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#endif
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get_be32(pb); /* duration */
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get_be16(pb); /* language */
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get_be16(pb); /* quality */
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return 0;
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}
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static int parse_hdlr(const MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
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{
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MOVContext *c;
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@ -435,11 +479,15 @@ static int parse_hdlr(const MOVParseTableEntry *parse_table, ByteIOContext *pb,
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#endif
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if(ctype == MKTAG('m', 'h', 'l', 'r')) { /* MOV */
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/* helps parsing the string hereafter... */
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c->mp4 = 0;
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if(type == MKTAG('v', 'i', 'd', 'e'))
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st->codec.codec_type = CODEC_TYPE_VIDEO;
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else if(type == MKTAG('s', 'o', 'u', 'n'))
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st->codec.codec_type = CODEC_TYPE_AUDIO;
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} else if(ctype == 0) { /* MP4 */
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/* helps parsing the string hereafter... */
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c->mp4 = 1;
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if(type == MKTAG('v', 'i', 'd', 'e'))
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st->codec.codec_type = CODEC_TYPE_VIDEO;
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else if(type == MKTAG('s', 'o', 'u', 'n'))
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@ -453,6 +501,22 @@ static int parse_hdlr(const MOVParseTableEntry *parse_table, ByteIOContext *pb,
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return 0; /* nothing left to read */
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/* XXX: MP4 uses a C string, not a pascal one */
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/* component name */
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if(c->mp4) {
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/* .mp4: C string */
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while(get_byte(pb) && (++len < (atom_size - 24)));
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} else {
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/* .mov: PASCAL string */
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len = get_byte(pb);
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buf = av_malloc(len+1);
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get_buffer(pb, buf, len);
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buf[len] = '\0';
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#ifdef DEBUG
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printf("**buf='%s'\n", buf);
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#endif
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av_free(buf);
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}
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#if 0
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len = get_byte(pb);
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/* XXX: use a better heuristic */
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if(len < 32) {
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@ -472,6 +536,7 @@ static int parse_hdlr(const MOVParseTableEntry *parse_table, ByteIOContext *pb,
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len = get_byte(pb);
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}
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}
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#endif
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return 0;
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}
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@ -559,7 +624,7 @@ static int parse_stsd(const MOVParseTableEntry *parse_table, ByteIOContext *pb,
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if(format == MKTAG('m', 'p', '4', 'v')) { /* XXX */
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st->codec.codec_type=CODEC_TYPE_VIDEO; /* force things */
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st->codec.codec_id = CODEC_ID_MPEG4;
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st->codec.frame_rate = 25;
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st->codec.frame_rate = 25 * FRAME_RATE_BASE;
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st->codec.bit_rate = 100000;
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}
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@ -673,7 +738,9 @@ static int parse_stsz(const MOVParseTableEntry *parse_table, ByteIOContext *pb,
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sc->sample_size = get_be32(pb);
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entries = get_be32(pb);
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sc->sample_count = entries;
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#ifdef DEBUG
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printf("sample_size = %ld sample_count = %ld\n", sc->sample_size, sc->sample_count);
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#endif
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if(sc->sample_size)
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return 0; /* there isn't any table following */
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sc->sample_sizes = av_malloc(entries * sizeof(long));
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@ -686,6 +753,91 @@ static int parse_stsz(const MOVParseTableEntry *parse_table, ByteIOContext *pb,
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return 0;
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}
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static int parse_stts(const MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
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{
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MOVContext *c;
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int entries, i;
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AVStream *st;
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MOVStreamContext *sc;
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#ifdef DEBUG
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print_atom("stts", atom_type, atom_offset, atom_size);
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#endif
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c = (MOVContext *)param;
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st = c->fc->streams[c->fc->nb_streams-1];
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sc = (MOVStreamContext *)st->priv_data;
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get_byte(pb); /* version */
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get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
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entries = get_be32(pb);
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for(i=0; i<entries; i++) {
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int sample_duration;
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get_be32(pb);
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sample_duration = get_be32(pb);
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if (!i && st->codec.codec_type==CODEC_TYPE_VIDEO) {
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st->codec.frame_rate = FRAME_RATE_BASE * c->streams[c->total_streams]->time_scale / sample_duration;
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#ifdef DEBUG
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printf("VIDEO FRAME RATE= %li (sd= %li)\n", st->codec.frame_rate, sample_duration);
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#endif
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}
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}
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return 0;
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}
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#ifdef CONFIG_ZLIB
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static int null_read_packet(void *opaque, UINT8 *buf, int buf_size)
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{
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return -1;
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}
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static int parse_cmov(const MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
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{
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MOVContext *c;
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ByteIOContext ctx;
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char *cmov_data;
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unsigned char *moov_data; /* uncompressed data */
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long cmov_len, moov_len;
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int ret;
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#ifdef DEBUG
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print_atom("cmov", atom_type, atom_offset, atom_size);
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#endif
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c = (MOVContext *)param;
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get_be32(pb); /* dcom atom */
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if (get_le32(pb) != MKTAG( 'd', 'c', 'o', 'm' ))
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return -1;
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if (get_le32(pb) != MKTAG( 'z', 'l', 'i', 'b' )) {
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puts("unknown compression for cmov atom !");
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return -1;
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}
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get_be32(pb); /* cmvd atom */
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if (get_le32(pb) != MKTAG( 'c', 'm', 'v', 'd' ))
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return -1;
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moov_len = get_be32(pb); /* uncompressed size */
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cmov_len = atom_size - 6 * 4;
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cmov_data = av_malloc(cmov_len);
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if (!cmov_data)
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return -1;
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moov_data = av_malloc(moov_len);
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if (!moov_data) {
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av_free(cmov_data);
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return -1;
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}
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get_buffer(pb, cmov_data, cmov_len);
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if(uncompress (moov_data, &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
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return -1;
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if(init_put_byte(&ctx, moov_data, moov_len, 0, NULL, null_read_packet, NULL, NULL) != 0)
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return -1;
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ctx.buf_end = ctx.buffer + moov_len;
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ret = parse_default(parse_table, &ctx, MKTAG( 'm', 'o', 'o', 'v' ), 0, moov_len, param);
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av_free(moov_data);
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av_free(cmov_data);
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return ret;
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}
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#endif
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static const MOVParseTableEntry mov_default_parse_table[] = {
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/* mp4 atoms */
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{ MKTAG( 'm', 'p', '4', 'a' ), parse_default },
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@ -711,7 +863,7 @@ static const MOVParseTableEntry mov_default_parse_table[] = {
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{ MKTAG( 'm', 'p', '4', 's' ), parse_default },
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{ MKTAG( 'm', 'd', 'i', 'a' ), parse_default },
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{ MKTAG( 'm', 'd', 'a', 't' ), parse_mdat },
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{ MKTAG( 'm', 'd', 'h', 'd' ), parse_leaf },
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{ MKTAG( 'm', 'd', 'h', 'd' ), parse_mdhd },
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{ MKTAG( 'm', 'i', 'n', 'f' ), parse_default },
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{ MKTAG( 'm', 'o', 'o', 'v' ), parse_moov },
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{ MKTAG( 'm', 'v', 'h', 'd' ), parse_mvhd },
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@ -728,7 +880,7 @@ static const MOVParseTableEntry mov_default_parse_table[] = {
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{ MKTAG( 's', 'm', 'h', 'd' ), parse_leaf },
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{ MKTAG( 'd', 'p', 'n', 'd' ), parse_leaf },
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||||
{ MKTAG( 's', 't', 's', 's' ), parse_leaf },
|
||||
{ MKTAG( 's', 't', 't', 's' ), parse_leaf },
|
||||
{ MKTAG( 's', 't', 't', 's' ), parse_stts },
|
||||
{ MKTAG( 't', 'r', 'a', 'k' ), parse_trak },
|
||||
{ MKTAG( 't', 'k', 'h', 'd' ), parse_tkhd },
|
||||
{ MKTAG( 't', 'r', 'e', 'f' ), parse_default }, /* not really */
|
||||
@ -753,6 +905,11 @@ static const MOVParseTableEntry mov_default_parse_table[] = {
|
||||
{ MKTAG( 's', 's', 'r', 'c' ), parse_leaf },
|
||||
{ MKTAG( 't', 'c', 'm', 'd' ), parse_leaf },
|
||||
{ MKTAG( 'w', 'i', 'd', 'e' ), parse_leaf }, /* place holder */
|
||||
#ifdef CONFIG_ZLIB
|
||||
{ MKTAG( 'c', 'm', 'o', 'v' ), parse_cmov },
|
||||
#else
|
||||
{ MKTAG( 'c', 'm', 'o', 'v' ), parse_leaf },
|
||||
#endif
|
||||
{ 0L, parse_leaf }
|
||||
};
|
||||
|
||||
@ -773,6 +930,10 @@ static int mov_probe(AVProbeData *p)
|
||||
return 0;
|
||||
if ((p->buf[4] == 'm' && p->buf[5] == 'o' &&
|
||||
p->buf[6] == 'o' && p->buf[7] == 'v') ||
|
||||
(p->buf[4] == 'w' && p->buf[5] == 'i' &&
|
||||
p->buf[6] == 'd' && p->buf[7] == 'e') ||
|
||||
(p->buf[4] == 'f' && p->buf[5] == 'r' &&
|
||||
p->buf[6] == 'e' && p->buf[7] == 'e') ||
|
||||
(p->buf[4] == 'm' && p->buf[5] == 'd' &&
|
||||
p->buf[6] == 'a' && p->buf[7] == 't'))
|
||||
return AVPROBE_SCORE_MAX;
|
||||
|
||||
@ -27,6 +27,8 @@ CodecTag codec_wav_tags[] = {
|
||||
{ CODEC_ID_PCM_U8, 0x01 }, /* must come after s16le in this list */
|
||||
{ CODEC_ID_PCM_ALAW, 0x06 },
|
||||
{ CODEC_ID_PCM_MULAW, 0x07 },
|
||||
{ CODEC_ID_ADPCM_MS, 0x02 },
|
||||
{ CODEC_ID_ADPCM_IMA_WAV, 0x11 },
|
||||
{ 0, 0 },
|
||||
};
|
||||
|
||||
@ -56,6 +58,8 @@ int put_wav_header(ByteIOContext *pb, AVCodecContext *enc)
|
||||
if (enc->codec_id == CODEC_ID_MP2 || enc->codec_id == CODEC_ID_MP3LAME) {
|
||||
blkalign = 1;
|
||||
//blkalign = 144 * enc->bit_rate/enc->sample_rate;
|
||||
} else if (enc->block_align != 0) { /* specified by the codec */
|
||||
blkalign = enc->block_align;
|
||||
} else
|
||||
blkalign = enc->channels*bps >> 3;
|
||||
if (enc->codec_id == CODEC_ID_PCM_U8 ||
|
||||
@ -205,6 +209,7 @@ static int wav_read_header(AVFormatContext *s,
|
||||
unsigned int tag;
|
||||
ByteIOContext *pb = &s->pb;
|
||||
unsigned int id, channels, rate, bit_rate, extra_size, bps;
|
||||
unsigned int blkalign;
|
||||
AVStream *st;
|
||||
|
||||
/* check RIFF header */
|
||||
@ -225,7 +230,7 @@ static int wav_read_header(AVFormatContext *s,
|
||||
channels = get_le16(pb);
|
||||
rate = get_le32(pb);
|
||||
bit_rate = get_le32(pb) * 8;
|
||||
get_le16(pb); /* block align */
|
||||
blkalign = get_le16(pb); /* block align */
|
||||
bps = get_le16(pb); /* bits per sample */
|
||||
if (size >= 18) {
|
||||
/* wav_extra_size */
|
||||
@ -248,6 +253,7 @@ static int wav_read_header(AVFormatContext *s,
|
||||
st->codec.codec_id = wav_codec_get_id(id, bps);
|
||||
st->codec.channels = channels;
|
||||
st->codec.sample_rate = rate;
|
||||
st->codec.block_align = blkalign;
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
@ -15,7 +15,7 @@ OBJS= common.o utils.o mem.o allcodecs.o \
|
||||
mpegaudio.o ac3enc.o mjpeg.o resample.o dsputil.o \
|
||||
motion_est.o imgconvert.o imgresample.o msmpeg4.o \
|
||||
mpeg12.o h263dec.o svq1.o rv10.o mpegaudiodec.o pcm.o simple_idct.o \
|
||||
ratecontrol.o
|
||||
ratecontrol.o adpcm.o
|
||||
ASM_OBJS=
|
||||
|
||||
# currently using liba52 for ac3 decoding
|
||||
|
||||
406
libavcodec/adpcm.c
Normal file
406
libavcodec/adpcm.c
Normal file
@ -0,0 +1,406 @@
|
||||
/*
|
||||
* ADPCM codecs
|
||||
* Copyright (c) 2001 Fabrice Bellard.
|
||||
*
|
||||
* This library is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2 of the License, or (at your option) any later version.
|
||||
*
|
||||
* This library is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with this library; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*/
|
||||
#include "avcodec.h"
|
||||
|
||||
/*
|
||||
* First version by Francois Revol revol@free.fr
|
||||
*
|
||||
* Features and limitations:
|
||||
*
|
||||
* Reference documents:
|
||||
* http://www.pcisys.net/~melanson/codecs/adpcm.txt
|
||||
* http://www.geocities.com/SiliconValley/8682/aud3.txt
|
||||
* http://openquicktime.sourceforge.net/plugins.htm
|
||||
* XAnim sources (xa_codec.c) http://www.rasnaimaging.com/people/lapus/download.html
|
||||
*/
|
||||
|
||||
#define BLKSIZE 1024
|
||||
|
||||
#define CLAMP_TO_SHORT(value) \
|
||||
if (value > 32767) \
|
||||
value = 32767; \
|
||||
else if (value < -32768) \
|
||||
value = -32768; \
|
||||
|
||||
/* step_table[] and index_table[] are from the ADPCM reference source */
|
||||
/* This is the index table: */
|
||||
static int index_table[16] = {
|
||||
-1, -1, -1, -1, 2, 4, 6, 8,
|
||||
-1, -1, -1, -1, 2, 4, 6, 8,
|
||||
};
|
||||
|
||||
/* This is the step table. Note that many programs use slight deviations from
|
||||
* this table, but such deviations are negligible:
|
||||
*/
|
||||
static int step_table[89] = {
|
||||
7, 8, 9, 10, 11, 12, 13, 14, 16, 17,
|
||||
19, 21, 23, 25, 28, 31, 34, 37, 41, 45,
|
||||
50, 55, 60, 66, 73, 80, 88, 97, 107, 118,
|
||||
130, 143, 157, 173, 190, 209, 230, 253, 279, 307,
|
||||
337, 371, 408, 449, 494, 544, 598, 658, 724, 796,
|
||||
876, 963, 1060, 1166, 1282, 1411, 1552, 1707, 1878, 2066,
|
||||
2272, 2499, 2749, 3024, 3327, 3660, 4026, 4428, 4871, 5358,
|
||||
5894, 6484, 7132, 7845, 8630, 9493, 10442, 11487, 12635, 13899,
|
||||
15289, 16818, 18500, 20350, 22385, 24623, 27086, 29794, 32767
|
||||
};
|
||||
|
||||
/* AdaptationTable[], AdaptCoeff1[], and AdaptCoeff2[] are from libsndfile */
|
||||
static int AdaptationTable[] = {
|
||||
230, 230, 230, 230, 307, 409, 512, 614,
|
||||
768, 614, 512, 409, 307, 230, 230, 230
|
||||
};
|
||||
|
||||
static int AdaptCoeff1[] = {
|
||||
256, 512, 0, 192, 240, 460, 392
|
||||
};
|
||||
|
||||
static int AdaptCoeff2[] = {
|
||||
0, -256, 0, 64, 0, -208, -232
|
||||
};
|
||||
|
||||
/* end of tables */
|
||||
|
||||
typedef struct ADPCMChannelStatus {
|
||||
int predictor;
|
||||
short int step_index;
|
||||
int step;
|
||||
|
||||
/* MS version */
|
||||
short sample1;
|
||||
short sample2;
|
||||
int coeff1;
|
||||
int coeff2;
|
||||
int idelta;
|
||||
} ADPCMChannelStatus;
|
||||
|
||||
typedef struct ADPCMContext {
|
||||
int channel; /* for stereo MOVs, decode left, then decode right, then tell it's decoded */
|
||||
ADPCMChannelStatus status[2];
|
||||
short sample_buffer[32]; /* hold left samples while waiting for right samples */
|
||||
} ADPCMContext;
|
||||
|
||||
/* XXX: implement encoding */
|
||||
|
||||
static int adpcm_encode_init(AVCodecContext *avctx)
|
||||
{
|
||||
switch(avctx->codec->id) {
|
||||
case CODEC_ID_ADPCM_IMA_QT:
|
||||
avctx->frame_size = 64; /* XXX: ??? */
|
||||
break;
|
||||
case CODEC_ID_ADPCM_IMA_WAV:
|
||||
avctx->frame_size = 64; /* XXX: ??? */
|
||||
break;
|
||||
default:
|
||||
avctx->frame_size = 1;
|
||||
break;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int adpcm_encode_close(AVCodecContext *avctx)
|
||||
{
|
||||
switch(avctx->codec->id) {
|
||||
default:
|
||||
/* nothing to free */
|
||||
break;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int adpcm_encode_frame(AVCodecContext *avctx,
|
||||
unsigned char *frame, int buf_size, void *data)
|
||||
{
|
||||
int n, sample_size, v;
|
||||
short *samples;
|
||||
unsigned char *dst;
|
||||
|
||||
switch(avctx->codec->id) {
|
||||
default:
|
||||
return -1;
|
||||
}
|
||||
avctx->key_frame = 1;
|
||||
//avctx->frame_size = (dst - frame) / (sample_size * avctx->channels);
|
||||
|
||||
return dst - frame;
|
||||
}
|
||||
|
||||
static int adpcm_decode_init(AVCodecContext * avctx)
|
||||
{
|
||||
ADPCMContext *c = avctx->priv_data;
|
||||
|
||||
c->channel = 0;
|
||||
c->status[0].predictor = c->status[1].predictor = 0;
|
||||
c->status[0].step_index = c->status[1].step_index = 0;
|
||||
c->status[0].step = c->status[1].step = 0;
|
||||
|
||||
switch(avctx->codec->id) {
|
||||
default:
|
||||
break;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static inline short adpcm_ima_expand_nibble(ADPCMChannelStatus *c, char nibble)
|
||||
{
|
||||
int step_index;
|
||||
int predictor;
|
||||
int sign, delta, diff, step;
|
||||
|
||||
predictor = c->predictor;
|
||||
step_index = c->step_index + index_table[(unsigned)nibble];
|
||||
if (step_index < 0) step_index = 0;
|
||||
if (step_index > 88) step_index = 88;
|
||||
|
||||
step = c->step;
|
||||
|
||||
/*
|
||||
diff = ((signed)((nibble & 0x08)?(nibble | 0xF0):(nibble)) + 0.5) * step / 4;
|
||||
predictor += diff;
|
||||
*/
|
||||
sign = nibble & 8;
|
||||
delta = nibble & 7;
|
||||
diff = step >> 3;
|
||||
if (delta & 4) diff += step;
|
||||
if (delta & 2) diff += step >> 1;
|
||||
if (delta & 1) diff += step >> 2;
|
||||
if (sign) predictor -= diff;
|
||||
else predictor += diff;
|
||||
|
||||
CLAMP_TO_SHORT(predictor);
|
||||
c->predictor = predictor;
|
||||
c->step_index = step_index;
|
||||
c->step = step_table[step_index];
|
||||
|
||||
return (short)predictor;
|
||||
}
|
||||
|
||||
static inline short adpcm_ms_expand_nibble(ADPCMChannelStatus *c, char nibble)
|
||||
{
|
||||
int predictor;
|
||||
|
||||
predictor = (((c->sample1) * (c->coeff1)) + ((c->sample2) * (c->coeff2))) / 256;
|
||||
predictor += (signed)((nibble & 0x08)?(nibble - 0x10):(nibble)) * c->idelta;
|
||||
CLAMP_TO_SHORT(predictor);
|
||||
|
||||
c->sample2 = c->sample1;
|
||||
c->sample1 = predictor;
|
||||
c->idelta = (AdaptationTable[(int)nibble] * c->idelta) / 256;
|
||||
if (c->idelta < 16) c->idelta = 16;
|
||||
|
||||
return (short)predictor;
|
||||
}
|
||||
|
||||
static int adpcm_decode_frame(AVCodecContext *avctx,
|
||||
void *data, int *data_size,
|
||||
UINT8 *buf, int buf_size)
|
||||
{
|
||||
ADPCMContext *c = avctx->priv_data;
|
||||
ADPCMChannelStatus *cs;
|
||||
int n, m, channel;
|
||||
int block_predictor[2];
|
||||
short *samples;
|
||||
UINT8 *src;
|
||||
int st; /* stereo */
|
||||
|
||||
samples = data;
|
||||
src = buf;
|
||||
|
||||
//printf("adpcm_decode_frame() buf_size=%i\n", buf_size);
|
||||
|
||||
st = avctx->channels == 2;
|
||||
|
||||
switch(avctx->codec->id) {
|
||||
case CODEC_ID_ADPCM_IMA_QT:
|
||||
n = (buf_size - 2);/* >> 2*avctx->channels;*/
|
||||
channel = c->channel;
|
||||
cs = &(c->status[channel]);
|
||||
/* (pppppp) (piiiiiii) */
|
||||
|
||||
/* Bits 15-7 are the _top_ 9 bits of the 16-bit initial predictor value */
|
||||
cs->predictor = (*src++) << 8;
|
||||
cs->predictor |= (*src & 0x80);
|
||||
cs->predictor &= 0xFF80;
|
||||
|
||||
/* sign extension */
|
||||
if(cs->predictor & 0x8000)
|
||||
cs->predictor -= 0x10000;
|
||||
|
||||
CLAMP_TO_SHORT(cs->predictor);
|
||||
|
||||
cs->step_index = (*src++) & 0x7F;
|
||||
|
||||
if (cs->step_index > 88) printf("ERROR: step_index = %i\n", cs->step_index);
|
||||
if (cs->step_index > 88) cs->step_index = 88;
|
||||
|
||||
cs->step = step_table[cs->step_index];
|
||||
|
||||
if (st && channel)
|
||||
samples++;
|
||||
|
||||
for(m=32; n>0 && m>0; n--, m--) { /* in QuickTime, IMA is encoded by chuncks of 34 bytes (=64 samples) */
|
||||
*samples = adpcm_ima_expand_nibble(cs, src[0] & 0x0F);
|
||||
samples += avctx->channels;
|
||||
*samples = adpcm_ima_expand_nibble(cs, (src[0] >> 4) & 0x0F);
|
||||
samples += avctx->channels;
|
||||
src ++;
|
||||
}
|
||||
|
||||
if(st) { /* handle stereo interlacing */
|
||||
c->channel = (channel + 1) % 2; /* we get one packet for left, then one for right data */
|
||||
if(channel == 0) { /* wait for the other packet before outputing anything */
|
||||
*data_size = 0;
|
||||
return src - buf;
|
||||
}
|
||||
}
|
||||
break;
|
||||
case CODEC_ID_ADPCM_IMA_WAV:
|
||||
if (buf_size > BLKSIZE) {
|
||||
if (avctx->block_align != 0)
|
||||
buf_size = avctx->block_align;
|
||||
else
|
||||
buf_size = BLKSIZE;
|
||||
}
|
||||
n = buf_size - 4 * avctx->channels;
|
||||
cs = &(c->status[0]);
|
||||
cs->predictor = (*src++) & 0x0FF;
|
||||
cs->predictor |= ((*src++) << 8) & 0x0FF00;
|
||||
if(cs->predictor & 0x8000)
|
||||
cs->predictor -= 0x10000;
|
||||
CLAMP_TO_SHORT(cs->predictor);
|
||||
|
||||
cs->step_index = *src++;
|
||||
if (cs->step_index < 0) cs->step_index = 0;
|
||||
if (cs->step_index > 88) cs->step_index = 88;
|
||||
if (*src++) puts("unused byte should be null !!"); /* unused */
|
||||
if (st) {
|
||||
cs = &(c->status[1]);
|
||||
cs->predictor = (*src++) & 0x0FF;
|
||||
cs->predictor |= ((*src++) << 8) & 0x0FF00;
|
||||
if(cs->predictor & 0x8000)
|
||||
cs->predictor -= 0x10000;
|
||||
CLAMP_TO_SHORT(cs->predictor);
|
||||
|
||||
cs->step_index = *src++;
|
||||
if (cs->step_index < 0) cs->step_index = 0;
|
||||
if (cs->step_index > 88) cs->step_index = 88;
|
||||
src++; /* unused */
|
||||
}
|
||||
cs = &(c->status[0]);
|
||||
|
||||
|
||||
for(m=3; n>0; n--, m--) {
|
||||
*samples++ = adpcm_ima_expand_nibble(&c->status[0], src[0] & 0x0F);
|
||||
if (st)
|
||||
*samples++ = adpcm_ima_expand_nibble(&c->status[1], src[4] & 0x0F);
|
||||
*samples++ = adpcm_ima_expand_nibble(&c->status[0], (src[0] >> 4) & 0x0F);
|
||||
if (st)
|
||||
*samples++ = adpcm_ima_expand_nibble(&c->status[1], (src[4] >> 4) & 0x0F);
|
||||
src ++;
|
||||
if (st && !m) {
|
||||
m=3;
|
||||
src+=4;
|
||||
}
|
||||
}
|
||||
break;
|
||||
case CODEC_ID_ADPCM_MS:
|
||||
|
||||
if (buf_size > BLKSIZE) {
|
||||
if (avctx->block_align != 0)
|
||||
buf_size = avctx->block_align;
|
||||
else
|
||||
buf_size = BLKSIZE;
|
||||
}
|
||||
n = buf_size - 7 * avctx->channels;
|
||||
if (n < 0)
|
||||
return -1;
|
||||
block_predictor[0] = (*src++); /* should be bound */
|
||||
block_predictor[0] = (block_predictor[0] < 0)?(0):((block_predictor[0] > 7)?(7):(block_predictor[0]));
|
||||
block_predictor[1] = 0;
|
||||
if (st)
|
||||
block_predictor[1] = (*src++);
|
||||
block_predictor[1] = (block_predictor[1] < 0)?(0):((block_predictor[1] > 7)?(7):(block_predictor[1]));
|
||||
c->status[0].idelta = ((*src & 0xFF) | ((src[1] << 8) & 0xFF00));
|
||||
if (c->status[0].idelta & 0x08000)
|
||||
c->status[0].idelta -= 0x10000;
|
||||
src+=2;
|
||||
if (st)
|
||||
c->status[1].idelta = ((*src & 0xFF) | ((src[1] << 8) & 0xFF00));
|
||||
if (st && c->status[1].idelta & 0x08000)
|
||||
c->status[1].idelta |= 0xFFFF0000;
|
||||
if (st)
|
||||
src+=2;
|
||||
c->status[0].coeff1 = AdaptCoeff1[block_predictor[0]];
|
||||
c->status[0].coeff2 = AdaptCoeff2[block_predictor[0]];
|
||||
c->status[1].coeff1 = AdaptCoeff1[block_predictor[1]];
|
||||
c->status[1].coeff2 = AdaptCoeff2[block_predictor[1]];
|
||||
|
||||
c->status[0].sample1 = ((*src & 0xFF) | ((src[1] << 8) & 0xFF00));
|
||||
src+=2;
|
||||
if (st) c->status[1].sample1 = ((*src & 0xFF) | ((src[1] << 8) & 0xFF00));
|
||||
if (st) src+=2;
|
||||
c->status[0].sample2 = ((*src & 0xFF) | ((src[1] << 8) & 0xFF00));
|
||||
src+=2;
|
||||
if (st) c->status[1].sample2 = ((*src & 0xFF) | ((src[1] << 8) & 0xFF00));
|
||||
if (st) src+=2;
|
||||
|
||||
*samples++ = c->status[0].sample1;
|
||||
if (st) *samples++ = c->status[1].sample1;
|
||||
*samples++ = c->status[0].sample2;
|
||||
if (st) *samples++ = c->status[1].sample2;
|
||||
for(;n>0;n--) {
|
||||
*samples++ = adpcm_ms_expand_nibble(&c->status[0], (src[0] >> 4) & 0x0F);
|
||||
*samples++ = adpcm_ms_expand_nibble(&c->status[st], src[0] & 0x0F);
|
||||
src ++;
|
||||
}
|
||||
break;
|
||||
default:
|
||||
*data_size = 0;
|
||||
return -1;
|
||||
}
|
||||
*data_size = (UINT8 *)samples - (UINT8 *)data;
|
||||
return src - buf;
|
||||
}
|
||||
|
||||
#define ADPCM_CODEC(id, name) \
|
||||
AVCodec name ## _encoder = { \
|
||||
#name, \
|
||||
CODEC_TYPE_AUDIO, \
|
||||
id, \
|
||||
sizeof(ADPCMContext), \
|
||||
adpcm_encode_init, \
|
||||
adpcm_encode_frame, \
|
||||
adpcm_encode_close, \
|
||||
NULL, \
|
||||
}; \
|
||||
AVCodec name ## _decoder = { \
|
||||
#name, \
|
||||
CODEC_TYPE_AUDIO, \
|
||||
id, \
|
||||
sizeof(ADPCMContext), \
|
||||
adpcm_decode_init, \
|
||||
NULL, \
|
||||
NULL, \
|
||||
adpcm_decode_frame, \
|
||||
};
|
||||
|
||||
ADPCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
|
||||
ADPCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
|
||||
ADPCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
|
||||
|
||||
#undef ADPCM_CODEC
|
||||
@ -89,6 +89,11 @@ PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
|
||||
PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
|
||||
PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
|
||||
|
||||
/* adpcm codecs */
|
||||
PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
|
||||
PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
|
||||
PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
|
||||
|
||||
#undef PCM_CODEC
|
||||
}
|
||||
|
||||
|
||||
@ -5,8 +5,8 @@
|
||||
|
||||
#define LIBAVCODEC_VERSION_INT 0x000406
|
||||
#define LIBAVCODEC_VERSION "0.4.6"
|
||||
#define LIBAVCODEC_BUILD 4617
|
||||
#define LIBAVCODEC_BUILD_STR "4617"
|
||||
#define LIBAVCODEC_BUILD 4618
|
||||
#define LIBAVCODEC_BUILD_STR "4618"
|
||||
|
||||
enum CodecID {
|
||||
CODEC_ID_NONE,
|
||||
@ -37,6 +37,11 @@ enum CodecID {
|
||||
CODEC_ID_PCM_U8,
|
||||
CODEC_ID_PCM_MULAW,
|
||||
CODEC_ID_PCM_ALAW,
|
||||
|
||||
/* various adpcm codecs */
|
||||
CODEC_ID_ADPCM_IMA_QT,
|
||||
CODEC_ID_ADPCM_IMA_WAV,
|
||||
CODEC_ID_ADPCM_MS,
|
||||
};
|
||||
#define CODEC_ID_MSMPEG4 CODEC_ID_MSMPEG4V3
|
||||
|
||||
@ -263,6 +268,7 @@ typedef struct AVCodecContext {
|
||||
int has_b_frames; // is 1 if the decoded stream contains b frames
|
||||
int dr_uvstride;
|
||||
int dr_ip_buffer_count;
|
||||
int block_align; /* currently only for adpcm codec in wav/avi */
|
||||
|
||||
//FIXME this should be reordered after kabis API is finished ...
|
||||
/*
|
||||
@ -286,7 +292,7 @@ typedef struct AVCodecContext {
|
||||
ul_res0,ul_res1,ul_res2,ul_res3,ul_res4,ul_res5,
|
||||
ul_res6,ul_res7,ul_res8,ul_res9,ul_res10,ul_res11,ul_res12;
|
||||
unsigned int
|
||||
ui_res0,ui_res1,ui_res2;
|
||||
ui_res0,ui_res1;
|
||||
unsigned short int
|
||||
us_res0,us_res1,us_res2,us_res3,us_res4,us_res5,
|
||||
us_res6,us_res7,us_res8,us_res9,us_res10,us_res11,us_res12;
|
||||
@ -376,6 +382,12 @@ PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
|
||||
PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
|
||||
PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
|
||||
|
||||
/* adpcm codecs */
|
||||
|
||||
PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
|
||||
PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
|
||||
PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
|
||||
|
||||
#undef PCM_CODEC
|
||||
|
||||
/* dummy raw video codec */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user