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@@ -0,0 +1,411 @@
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+From 4755f5bd7854611d92ad0f1295587b439f9950ba Mon Sep 17 00:00:00 2001
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+From: Arthur Taylor <art@ified.ca>
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+Date: Fri, 15 Nov 2024 19:46:53 -0800
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+Subject: [PATCH] src/ogg: better error checking for vorbis. Fixes #1035
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+
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+Upstream: https://github.com/libsndfile/libsndfile/commit/4755f5bd7854611d92ad0f1295587b439f9950ba
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+Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
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+---
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+ src/ogg.c | 12 ++--
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+ src/ogg_opus.c | 17 +++--
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+ src/ogg_vorbis.c | 170 ++++++++++++++++++++++++++---------------------
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+ 3 files changed, 114 insertions(+), 85 deletions(-)
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+
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+diff --git a/src/ogg.c b/src/ogg.c
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+index 529941af..e2d679d4 100644
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+--- a/src/ogg.c
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++++ b/src/ogg.c
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+@@ -211,12 +211,16 @@ ogg_read_first_page (SF_PRIVATE *psf, OGG_PRIVATE *odata)
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+
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+ int
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+ ogg_write_page (SF_PRIVATE *psf, ogg_page *page)
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+-{ int bytes ;
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++{ int n ;
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+
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+- bytes = psf_fwrite (page->header, 1, page->header_len, psf) ;
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+- bytes += psf_fwrite (page->body, 1, page->body_len, psf) ;
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++ n = psf_fwrite (page->header, 1, page->header_len, psf) ;
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++ if (n == page->header_len)
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++ n += psf_fwrite (page->body, 1, page->body_len, psf) ;
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+
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+- return bytes == page->header_len + page->body_len ;
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++ if (n != page->body_len + page->header_len)
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++ return -1 ;
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++
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++ return n ;
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+ } /* ogg_write_page */
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+
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+ sf_count_t
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+diff --git a/src/ogg_opus.c b/src/ogg_opus.c
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+index 511653ec..e01224b9 100644
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+--- a/src/ogg_opus.c
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++++ b/src/ogg_opus.c
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+@@ -827,15 +827,16 @@ ogg_opus_write_header (SF_PRIVATE *psf, int UNUSED (calc_length))
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+
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+ /* The first page MUST only contain the header, so flush it out now */
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+ ogg_stream_packetin (&odata->ostream, &op) ;
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+- for ( ; (nn = ogg_stream_flush (&odata->ostream, &odata->opage)) ; )
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+- { if (! (nn = ogg_write_page (psf, &odata->opage)))
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++ while (ogg_stream_flush (&odata->ostream, &odata->opage))
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++ { nn = ogg_write_page (psf, &odata->opage) ;
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++ if (nn < 0)
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+ { psf_log_printf (psf, "Opus : Failed to write header!\n") ;
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+ if (psf->error)
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+ return psf->error ;
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+ return SFE_INTERNAL ;
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+ } ;
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+ psf->dataoffset += nn ;
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+- }
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++ } ;
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+
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+ /*
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+ ** Metadata Tags (manditory)
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+@@ -850,15 +851,16 @@ ogg_opus_write_header (SF_PRIVATE *psf, int UNUSED (calc_length))
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+ vorbiscomment_write_tags (psf, &op, &opustags_ident, opus_get_version_string (), - (OGG_OPUS_COMMENT_PAD)) ;
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+ op.packetno = 2 ;
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+ ogg_stream_packetin (&odata->ostream, &op) ;
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+- for ( ; (nn = ogg_stream_flush (&odata->ostream, &odata->opage)) ; )
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+- { if (! (nn = ogg_write_page (psf, &odata->opage)))
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++ while (ogg_stream_flush (&odata->ostream, &odata->opage))
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++ { nn = ogg_write_page (psf, &odata->opage) ;
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++ if (nn < 0)
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+ { psf_log_printf (psf, "Opus : Failed to write comments!\n") ;
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+ if (psf->error)
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+ return psf->error ;
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+ return SFE_INTERNAL ;
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+ } ;
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+ psf->dataoffset += nn ;
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+- }
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++ } ;
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+
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+ return 0 ;
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+ } /* ogg_opus_write_header */
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+@@ -1132,7 +1134,8 @@ ogg_opus_write_out (SF_PRIVATE *psf, OGG_PRIVATE *odata, OPUS_PRIVATE *oopus)
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+ if (nbytes > 0)
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+ { oopus->u.encode.last_segments -= ogg_page_segments (&odata->opage) ;
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+ oopus->pg_pos = oopus->pkt_pos ;
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+- ogg_write_page (psf, &odata->opage) ;
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++ if (ogg_write_page (psf, &odata->opage) < 0)
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++ return -1 ;
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+ }
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+ else
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+ break ;
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+diff --git a/src/ogg_vorbis.c b/src/ogg_vorbis.c
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+index add12396..fae252ca 100644
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+--- a/src/ogg_vorbis.c
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++++ b/src/ogg_vorbis.c
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+@@ -82,28 +82,6 @@
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+ /* How many seconds in the future to not bother bisection searching for. */
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+ #define VORBIS_SEEK_THRESHOLD 2
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+
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+-typedef int convert_func (SF_PRIVATE *psf, int, void *, int, int, float **) ;
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+-
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+-static int vorbis_read_header (SF_PRIVATE *psf) ;
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+-static int vorbis_write_header (SF_PRIVATE *psf, int calc_length) ;
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+-static int vorbis_close (SF_PRIVATE *psf) ;
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+-static int vorbis_command (SF_PRIVATE *psf, int command, void *data, int datasize) ;
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+-static int vorbis_byterate (SF_PRIVATE *psf) ;
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+-static int vorbis_calculate_granulepos (SF_PRIVATE *psf, uint64_t *gp_out) ;
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+-static int vorbis_skip (SF_PRIVATE *psf, uint64_t target_gp) ;
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+-static int vorbis_seek_trysearch (SF_PRIVATE *psf, uint64_t target_gp) ;
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+-static sf_count_t vorbis_seek (SF_PRIVATE *psf, int mode, sf_count_t offset) ;
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+-static sf_count_t vorbis_read_s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ;
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+-static sf_count_t vorbis_read_i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ;
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+-static sf_count_t vorbis_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ;
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+-static sf_count_t vorbis_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ;
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+-static sf_count_t vorbis_write_s (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ;
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+-static sf_count_t vorbis_write_i (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ;
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+-static sf_count_t vorbis_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ;
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+-static sf_count_t vorbis_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ;
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+-static sf_count_t vorbis_read_sample (SF_PRIVATE *psf, void *ptr, sf_count_t lens, convert_func *transfn) ;
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+-static int vorbis_rnull (SF_PRIVATE *psf, int samples, void *vptr, int off , int channels, float **pcm) ;
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+-
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+ typedef struct
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+ { int id ;
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+ const char *name ;
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+@@ -145,6 +123,45 @@ typedef struct
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+ sf_count_t last_page ;
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+ } VORBIS_PRIVATE ;
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+
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++typedef int convert_func (SF_PRIVATE *psf, int, void *, int, int, float **) ;
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++
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++static int vorbis_read_header (SF_PRIVATE *psf) ;
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++static int vorbis_write_header (SF_PRIVATE *psf, int calc_length) ;
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++static int vorbis_close (SF_PRIVATE *psf) ;
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++static int vorbis_command (SF_PRIVATE *psf, int command, void *data, int datasize) ;
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++static int vorbis_byterate (SF_PRIVATE *psf) ;
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++static int vorbis_calculate_granulepos (SF_PRIVATE *psf, uint64_t *gp_out) ;
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++static int vorbis_skip (SF_PRIVATE *psf, uint64_t target_gp) ;
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++static int vorbis_seek_trysearch (SF_PRIVATE *psf, uint64_t target_gp) ;
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++static sf_count_t vorbis_seek (SF_PRIVATE *psf, int mode, sf_count_t offset) ;
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++static sf_count_t vorbis_read_s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ;
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++static sf_count_t vorbis_read_i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ;
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++static sf_count_t vorbis_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ;
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++static sf_count_t vorbis_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ;
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++static sf_count_t vorbis_write_s (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ;
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++static sf_count_t vorbis_write_i (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ;
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++static sf_count_t vorbis_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ;
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++static sf_count_t vorbis_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ;
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++static sf_count_t vorbis_read_sample (SF_PRIVATE *psf, void *ptr, sf_count_t lens, convert_func *transfn) ;
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++static int vorbis_write_samples (SF_PRIVATE *psf, OGG_PRIVATE *odata, VORBIS_PRIVATE *vdata, int in_frames) ;
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++static int vorbis_rnull (SF_PRIVATE *psf, int samples, void *vptr, int off , int channels, float **pcm) ;
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++static void vorbis_log_error (SF_PRIVATE *psf, int error) ;
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++
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++
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++static void
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++vorbis_log_error(SF_PRIVATE *psf, int error) {
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++ switch (error)
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++ { case 0: return;
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++ case OV_EIMPL: psf->error = SFE_UNIMPLEMENTED ; break ;
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++ case OV_ENOTVORBIS: psf->error = SFE_MALFORMED_FILE ; break ;
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++ case OV_EBADHEADER: psf->error = SFE_MALFORMED_FILE ; break ;
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++ case OV_EVERSION: psf->error = SFE_UNSUPPORTED_ENCODING ; break ;
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++ case OV_EFAULT:
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++ case OV_EINVAL:
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++ default: psf->error = SFE_INTERNAL ;
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++ } ;
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++} ;
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++
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+ static int
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+ vorbis_read_header (SF_PRIVATE *psf)
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+ { OGG_PRIVATE *odata = (OGG_PRIVATE *) psf->container_data ;
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+@@ -380,7 +397,6 @@ vorbis_write_header (SF_PRIVATE *psf, int UNUSED (calc_length))
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+ { ogg_packet header ;
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+ ogg_packet header_comm ;
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+ ogg_packet header_code ;
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+- int result ;
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+
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+ vorbis_analysis_headerout (&vdata->vdsp, &vdata->vcomment, &header, &header_comm, &header_code) ;
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+ ogg_stream_packetin (&odata->ostream, &header) ; /* automatically placed in its own page */
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+@@ -390,9 +406,9 @@ vorbis_write_header (SF_PRIVATE *psf, int UNUSED (calc_length))
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+ /* This ensures the actual
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+ * audio data will start on a new page, as per spec
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+ */
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+- while ((result = ogg_stream_flush (&odata->ostream, &odata->opage)) != 0)
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+- { ogg_write_page (psf, &odata->opage) ;
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+- } ;
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++ while (ogg_stream_flush (&odata->ostream, &odata->opage))
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++ if (ogg_write_page (psf, &odata->opage) < 0)
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++ return -1 ;
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+ }
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+
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+ return 0 ;
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+@@ -402,6 +418,7 @@ static int
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+ vorbis_close (SF_PRIVATE *psf)
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+ { OGG_PRIVATE* odata = psf->container_data ;
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+ VORBIS_PRIVATE *vdata = psf->codec_data ;
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++ int ret = 0 ;
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+
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+ if (odata == NULL || vdata == NULL)
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+ return 0 ;
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+@@ -412,34 +429,14 @@ vorbis_close (SF_PRIVATE *psf)
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+ if (psf->file.mode == SFM_WRITE)
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+ {
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+ if (psf->write_current <= 0)
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+- vorbis_write_header (psf, 0) ;
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++ ret = vorbis_write_header (psf, 0) ;
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+
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+- vorbis_analysis_wrote (&vdata->vdsp, 0) ;
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+- while (vorbis_analysis_blockout (&vdata->vdsp, &vdata->vblock) == 1)
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+- {
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+-
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+- /* analysis, assume we want to use bitrate management */
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+- vorbis_analysis (&vdata->vblock, NULL) ;
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+- vorbis_bitrate_addblock (&vdata->vblock) ;
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+-
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+- while (vorbis_bitrate_flushpacket (&vdata->vdsp, &odata->opacket))
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+- { /* weld the packet into the bitstream */
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+- ogg_stream_packetin (&odata->ostream, &odata->opacket) ;
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+-
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+- /* write out pages (if any) */
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+- while (!odata->eos)
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+- { int result = ogg_stream_pageout (&odata->ostream, &odata->opage) ;
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+- if (result == 0) break ;
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+- ogg_write_page (psf, &odata->opage) ;
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+-
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+- /* this could be set above, but for illustrative purposes, I do
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+- it here (to show that vorbis does know where the stream ends) */
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+-
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+- if (ogg_page_eos (&odata->opage)) odata->eos = 1 ;
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+- }
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+- }
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+- }
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+- }
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++ if (ret == 0)
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++ { /* A write of zero samples tells Vorbis the stream is done and to
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++ flush. */
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++ ret = vorbis_write_samples (psf, odata, vdata, 0) ;
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++ } ;
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++ } ;
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+
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+ /* ogg_page and ogg_packet structs always point to storage in
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+ libvorbis. They are never freed or manipulated directly */
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+@@ -449,7 +446,7 @@ vorbis_close (SF_PRIVATE *psf)
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+ vorbis_comment_clear (&vdata->vcomment) ;
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+ vorbis_info_clear (&vdata->vinfo) ;
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+
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+- return 0 ;
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++ return ret ;
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+ } /* vorbis_close */
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+
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+ int
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+@@ -688,33 +685,40 @@ vorbis_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t lens)
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+ /*==============================================================================
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+ */
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+
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+-static void
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++static int
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+ vorbis_write_samples (SF_PRIVATE *psf, OGG_PRIVATE *odata, VORBIS_PRIVATE *vdata, int in_frames)
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+-{
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+- vorbis_analysis_wrote (&vdata->vdsp, in_frames) ;
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++{ int ret ;
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++
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++ if ((ret = vorbis_analysis_wrote (&vdata->vdsp, in_frames)) != 0)
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++ return ret ;
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+
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+ /*
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+ ** Vorbis does some data preanalysis, then divvies up blocks for
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+ ** more involved (potentially parallel) processing. Get a single
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+ ** block for encoding now.
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+ */
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+- while (vorbis_analysis_blockout (&vdata->vdsp, &vdata->vblock) == 1)
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++ while ((ret = vorbis_analysis_blockout (&vdata->vdsp, &vdata->vblock)) == 1)
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+ {
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+ /* analysis, assume we want to use bitrate management */
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+- vorbis_analysis (&vdata->vblock, NULL) ;
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+- vorbis_bitrate_addblock (&vdata->vblock) ;
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++ if ((ret = vorbis_analysis (&vdata->vblock, NULL)) != 0)
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++ return ret ;
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++ if ((ret = vorbis_bitrate_addblock (&vdata->vblock)) != 0)
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++ return ret ;
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+
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+- while (vorbis_bitrate_flushpacket (&vdata->vdsp, &odata->opacket))
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++ while ((ret = vorbis_bitrate_flushpacket (&vdata->vdsp, &odata->opacket)) == 1)
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+ {
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+ /* weld the packet into the bitstream */
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+- ogg_stream_packetin (&odata->ostream, &odata->opacket) ;
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++ if ((ret = ogg_stream_packetin (&odata->ostream, &odata->opacket)) != 0)
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++ return ret ;
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+
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+ /* write out pages (if any) */
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+ while (!odata->eos)
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+- { int result = ogg_stream_pageout (&odata->ostream, &odata->opage) ;
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+- if (result == 0)
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++ { ret = ogg_stream_pageout (&odata->ostream, &odata->opage) ;
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++ if (ret == 0)
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+ break ;
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+- ogg_write_page (psf, &odata->opage) ;
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++
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++ if (ogg_write_page (psf, &odata->opage) < 0)
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++ return -1 ;
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+
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+ /* This could be set above, but for illustrative purposes, I do
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+ ** it here (to show that vorbis does know where the stream ends) */
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+@@ -722,16 +726,22 @@ vorbis_write_samples (SF_PRIVATE *psf, OGG_PRIVATE *odata, VORBIS_PRIVATE *vdata
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+ odata->eos = 1 ;
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+ } ;
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+ } ;
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++ if (ret != 0)
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++ return ret ;
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+ } ;
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++ if (ret != 0)
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++ return ret ;
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+
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+ vdata->gp += in_frames ;
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++
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++ return 0 ;
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+ } /* vorbis_write_data */
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+
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+
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+ static sf_count_t
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+ vorbis_write_s (SF_PRIVATE *psf, const short *ptr, sf_count_t lens)
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+ {
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+- int i, m, j = 0 ;
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++ int i, m, j = 0, ret ;
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+ OGG_PRIVATE *odata = (OGG_PRIVATE *) psf->container_data ;
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+ VORBIS_PRIVATE *vdata = (VORBIS_PRIVATE *) psf->codec_data ;
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+ int in_frames = lens / psf->sf.channels ;
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+@@ -740,14 +750,17 @@ vorbis_write_s (SF_PRIVATE *psf, const short *ptr, sf_count_t lens)
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+ for (m = 0 ; m < psf->sf.channels ; m++)
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+ buffer [m][i] = (float) (ptr [j++]) / 32767.0f ;
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+
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+- vorbis_write_samples (psf, odata, vdata, in_frames) ;
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++ if ((ret = vorbis_write_samples (psf, odata, vdata, in_frames)))
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++ { vorbis_log_error (psf, ret) ;
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++ return 0 ;
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++ } ;
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+
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+ return lens ;
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+ } /* vorbis_write_s */
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+
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+ static sf_count_t
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+ vorbis_write_i (SF_PRIVATE *psf, const int *ptr, sf_count_t lens)
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+-{ int i, m, j = 0 ;
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++{ int i, m, j = 0, ret ;
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+ OGG_PRIVATE *odata = (OGG_PRIVATE *) psf->container_data ;
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+ VORBIS_PRIVATE *vdata = (VORBIS_PRIVATE *) psf->codec_data ;
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+ int in_frames = lens / psf->sf.channels ;
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+@@ -756,14 +769,17 @@ vorbis_write_i (SF_PRIVATE *psf, const int *ptr, sf_count_t lens)
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+ for (m = 0 ; m < psf->sf.channels ; m++)
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+ buffer [m][i] = (float) (ptr [j++]) / 2147483647.0f ;
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+
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+- vorbis_write_samples (psf, odata, vdata, in_frames) ;
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++ if ((ret = vorbis_write_samples (psf, odata, vdata, in_frames)))
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++ { vorbis_log_error (psf, ret) ;
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++ return 0 ;
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++ } ;
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+
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+ return lens ;
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+ } /* vorbis_write_i */
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+
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+ static sf_count_t
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+ vorbis_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t lens)
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+-{ int i, m, j = 0 ;
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++{ int i, m, j = 0, ret ;
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+ OGG_PRIVATE *odata = (OGG_PRIVATE *) psf->container_data ;
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+ VORBIS_PRIVATE *vdata = (VORBIS_PRIVATE *) psf->codec_data ;
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+ int in_frames = lens / psf->sf.channels ;
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+@@ -772,14 +788,17 @@ vorbis_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t lens)
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+ for (m = 0 ; m < psf->sf.channels ; m++)
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+ buffer [m][i] = ptr [j++] ;
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+
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+- vorbis_write_samples (psf, odata, vdata, in_frames) ;
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++ if ((ret = vorbis_write_samples (psf, odata, vdata, in_frames)) != 0)
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++ { vorbis_log_error (psf, ret) ;
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++ return 0 ;
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++ } ;
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+
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+ return lens ;
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+ } /* vorbis_write_f */
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+
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+ static sf_count_t
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+ vorbis_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t lens)
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+-{ int i, m, j = 0 ;
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++{ int i, m, j = 0, ret ;
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+ OGG_PRIVATE *odata = (OGG_PRIVATE *) psf->container_data ;
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+ VORBIS_PRIVATE *vdata = (VORBIS_PRIVATE *) psf->codec_data ;
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+ int in_frames = lens / psf->sf.channels ;
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+@@ -788,7 +807,10 @@ vorbis_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t lens)
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+ for (m = 0 ; m < psf->sf.channels ; m++)
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+ buffer [m][i] = (float) ptr [j++] ;
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+
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+- vorbis_write_samples (psf, odata, vdata, in_frames) ;
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++ if ((ret = vorbis_write_samples (psf, odata, vdata, in_frames)) != 0)
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++ { vorbis_log_error (psf, ret) ;
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++ return 0 ;
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++ } ;
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+
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+ return lens ;
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+ } /* vorbis_write_d */
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+@@ -884,7 +906,7 @@ vorbis_seek_trysearch (SF_PRIVATE *psf, uint64_t target_gp)
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+ return 0 ;
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+
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+ /* Search for a position a half large-block before our target. As Vorbis is
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+- ** lapped, every sample position come from two blocks, the "left" half of
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++ ** lapped, every sample position comes from two blocks, the "left" half of
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+ ** one block and the "right" half of the previous block. The granule
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+ ** position of an Ogg page of a Vorbis stream is the sample offset of the
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+ ** last finished sample in the stream that can be decoded from a page. A
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+--
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+2.39.5
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+
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