diff options
author | wm4 <wm4@nowhere> | 2012-08-01 17:07:35 +0200 |
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committer | wm4 <wm4@nowhere> | 2012-08-01 17:07:35 +0200 |
commit | c92538dfaa5eb7e9b2773f158cbb310545116abe (patch) | |
tree | 4b1ab99a17cbead6ff1b7bf9714642540cd66ce4 /libmpdemux/yuv4mpeg.c | |
parent | 7175f178de72bb4f31cacd79b395a14beaf2f65a (diff) | |
download | mpv-c92538dfaa5eb7e9b2773f158cbb310545116abe.tar.bz2 mpv-c92538dfaa5eb7e9b2773f158cbb310545116abe.tar.xz |
Remove dead code
This was done with the help of callcatcher [1]. Only functions which
are statically known to be unused are removed.
Some unused functions are not removed yet, because they might be needed
in the near future (such as open_output_stream for the encode branch).
There is one user visible change: the --subcc option did nothing, and is
removed with this commit.
[1] http://www.skynet.ie/~caolan/Packages/callcatcher.html
Diffstat (limited to 'libmpdemux/yuv4mpeg.c')
-rw-r--r-- | libmpdemux/yuv4mpeg.c | 767 |
1 files changed, 0 insertions, 767 deletions
diff --git a/libmpdemux/yuv4mpeg.c b/libmpdemux/yuv4mpeg.c deleted file mode 100644 index 1606faa41b..0000000000 --- a/libmpdemux/yuv4mpeg.c +++ /dev/null @@ -1,767 +0,0 @@ -/* - * yuv4mpeg.c: Functions for reading and writing "new" YUV4MPEG streams - * - * Copyright (C) 2001 Matthew J. Marjanovic <maddog@mir.com> - * - * This file is part of the MJPEG Tools package (mjpeg.sourceforge.net). - * Ported to mplayer by Rik Snel <rsnel@cube.dyndns.org> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This program 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 General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - * - */ - -#include "config.h" - -#include <unistd.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include "yuv4mpeg.h" -#include "yuv4mpeg_intern.h" -#include "mp_msg.h" -#include "libavutil/attributes.h" - -static int _y4mparam_allow_unknown_tags = 1; /* default is forgiveness */ - -static void *(*_y4m_alloc)(size_t bytes) = malloc; -static void (*_y4m_free)(void *ptr) = free; - -int y4m_allow_unknown_tags(int yn) { - int old = _y4mparam_allow_unknown_tags; - if (yn >= 0) _y4mparam_allow_unknown_tags = (yn) ? 1 : 0; - return old; -} - - - -/************************************************************************* - * - * Convenience functions for fd read/write - * - * - guaranteed to transfer entire payload (or fail) - * - returns: - * 0 on complete success - * +(# of remaining bytes) on eof (for y4m_read) - * -(# of rem. bytes) on error (and ERRNO should be set) - * - *************************************************************************/ - - -ssize_t y4m_read(stream_t *s, char *buf, size_t len) -{ - ssize_t n; - - while (len > 0) { - n = stream_read(s, buf, len); - if (n <= 0) { - /* return amount left to read */ - if (n == 0) - return len; /* n == 0 --> eof */ - else - return -len; /* n < 0 --> error */ - } - buf += n; - len -= n; - } - return 0; -} - - -#if 0 /* not needed */ -ssize_t y4m_write(int fd, char *buf, size_t len) -{ - ssize_t n; - - while (len > 0) { - n = write(fd, buf, len); - if (n < 0) return -len; /* return amount left to write */ - buf += n; - len -= n; - } - return 0; -} -#endif - - -/************************************************************************* - * - * "Extra tags" handling - * - *************************************************************************/ - - -static char *y4m_new_xtag(void) -{ - return _y4m_alloc(Y4M_MAX_XTAG_SIZE); -} - - -void y4m_init_xtag_list(y4m_xtag_list_t *xtags) -{ - int i; - xtags->count = 0; - for (i = 0; i < Y4M_MAX_XTAGS; i++) { - xtags->tags[i] = NULL; - } -} - - -void y4m_fini_xtag_list(y4m_xtag_list_t *xtags) -{ - int i; - for (i = 0; i < Y4M_MAX_XTAGS; i++) { - if (xtags->tags[i] != NULL) { - _y4m_free(xtags->tags[i]); - xtags->tags[i] = NULL; - } - } - xtags->count = 0; -} - - -void y4m_copy_xtag_list(y4m_xtag_list_t *dest, const y4m_xtag_list_t *src) -{ - int i; - for (i = 0; i < src->count; i++) { - if (dest->tags[i] == NULL) - dest->tags[i] = y4m_new_xtag(); - strncpy(dest->tags[i], src->tags[i], Y4M_MAX_XTAG_SIZE); - } - dest->count = src->count; -} - - - -#if 0 -static int y4m_snprint_xtags(char *s, int maxn, y4m_xtag_list_t *xtags) -{ - int i, room; - - for (i = 0, room = maxn - 1; i < xtags->count; i++) { - int n = snprintf(s, room + 1, " %s", xtags->tags[i]); - if ((n < 0) || (n > room)) return Y4M_ERR_HEADER; - s += n; - room -= n; - } - s[0] = '\n'; /* finish off header with newline */ - s[1] = '\0'; /* ...and end-of-string */ - return Y4M_OK; -} -#endif - - -int y4m_xtag_count(const y4m_xtag_list_t *xtags) -{ - return xtags->count; -} - - -const char *y4m_xtag_get(const y4m_xtag_list_t *xtags, int n) -{ - if (n >= xtags->count) - return NULL; - else - return xtags->tags[n]; -} - - -int y4m_xtag_add(y4m_xtag_list_t *xtags, const char *tag) -{ - if (xtags->count >= Y4M_MAX_XTAGS) return Y4M_ERR_XXTAGS; - if (xtags->tags[xtags->count] == NULL) { - xtags->tags[xtags->count] = y4m_new_xtag(); - } - strncpy(xtags->tags[xtags->count], tag, Y4M_MAX_XTAG_SIZE); - (xtags->count)++; - return Y4M_OK; -} - - -int y4m_xtag_remove(y4m_xtag_list_t *xtags, int n) -{ - int i; - char *q; - - if ((n < 0) || (n >= xtags->count)) return Y4M_ERR_RANGE; - q = xtags->tags[n]; - for (i = n; i < (xtags->count - 1); i++) - xtags->tags[i] = xtags->tags[i+1]; - xtags->tags[i] = q; - (xtags->count)--; - return Y4M_OK; -} - - -int y4m_xtag_clearlist(y4m_xtag_list_t *xtags) -{ - xtags->count = 0; - return Y4M_OK; -} - - -int y4m_xtag_addlist(y4m_xtag_list_t *dest, const y4m_xtag_list_t *src) -{ - int i, j; - - if ((dest->count + src->count) > Y4M_MAX_XTAGS) return Y4M_ERR_XXTAGS; - for (i = dest->count, j = 0; - j < src->count; - i++, j++) { - if (dest->tags[i] == NULL) - dest->tags[i] = y4m_new_xtag(); - strncpy(dest->tags[i], src->tags[i], Y4M_MAX_XTAG_SIZE); - } - dest->count += src->count; - return Y4M_OK; -} - - -/************************************************************************* - * - * Creators/destructors for y4m_*_info_t structures - * - *************************************************************************/ - - -void y4m_init_stream_info(y4m_stream_info_t *info) -{ - if (info == NULL) return; - /* initialize info */ - info->width = Y4M_UNKNOWN; - info->height = Y4M_UNKNOWN; - info->interlace = Y4M_UNKNOWN; - info->framerate = y4m_fps_UNKNOWN; - info->sampleaspect = y4m_sar_UNKNOWN; - y4m_init_xtag_list(&(info->x_tags)); -} - - -void y4m_copy_stream_info(y4m_stream_info_t *dest, y4m_stream_info_t *src) -{ - if ((dest == NULL) || (src == NULL)) return; - /* copy info */ - dest->width = src->width; - dest->height = src->height; - dest->interlace = src->interlace; - dest->framerate = src->framerate; - dest->sampleaspect = src->sampleaspect; - y4m_copy_xtag_list(&(dest->x_tags), &(src->x_tags)); -} - - -void y4m_fini_stream_info(y4m_stream_info_t *info) -{ - if (info == NULL) return; - y4m_fini_xtag_list(&(info->x_tags)); -} - - -void y4m_si_set_width(y4m_stream_info_t *si, int width) -{ - si->width = width; - si->framelength = (si->height * si->width) * 3 / 2; -} - -int y4m_si_get_width(y4m_stream_info_t *si) -{ return si->width; } - -void y4m_si_set_height(y4m_stream_info_t *si, int height) -{ - si->height = height; - si->framelength = (si->height * si->width) * 3 / 2; -} - -int y4m_si_get_height(y4m_stream_info_t *si) -{ return si->height; } - -void y4m_si_set_interlace(y4m_stream_info_t *si, int interlace) -{ si->interlace = interlace; } - -int y4m_si_get_interlace(y4m_stream_info_t *si) -{ return si->interlace; } - -void y4m_si_set_framerate(y4m_stream_info_t *si, y4m_ratio_t framerate) -{ si->framerate = framerate; } - -y4m_ratio_t y4m_si_get_framerate(y4m_stream_info_t *si) -{ return si->framerate; } - -void y4m_si_set_sampleaspect(y4m_stream_info_t *si, y4m_ratio_t sar) -{ si->sampleaspect = sar; } - -y4m_ratio_t y4m_si_get_sampleaspect(y4m_stream_info_t *si) -{ return si->sampleaspect; } - -int y4m_si_get_framelength(y4m_stream_info_t *si) -{ return si->framelength; } - -y4m_xtag_list_t *y4m_si_xtags(y4m_stream_info_t *si) -{ return &(si->x_tags); } - - - -void y4m_init_frame_info(y4m_frame_info_t *info) -{ - if (info == NULL) return; - /* initialize info */ - y4m_init_xtag_list(&(info->x_tags)); -} - - -void y4m_copy_frame_info(y4m_frame_info_t *dest, y4m_frame_info_t *src) -{ - if ((dest == NULL) || (src == NULL)) return; - /* copy info */ - y4m_copy_xtag_list(&(dest->x_tags), &(src->x_tags)); -} - - -void y4m_fini_frame_info(y4m_frame_info_t *info) -{ - if (info == NULL) return; - y4m_fini_xtag_list(&(info->x_tags)); -} - - - -/************************************************************************* - * - * Tag parsing - * - *************************************************************************/ - -int y4m_parse_stream_tags(char *s, y4m_stream_info_t *i) -{ - char *token, *value; - char tag; - int err; - - /* parse fields */ - for (token = strtok(s, Y4M_DELIM); - token != NULL; - token = strtok(NULL, Y4M_DELIM)) { - if (token[0] == '\0') continue; /* skip empty strings */ - tag = token[0]; - value = token + 1; - switch (tag) { - case 'W': /* width */ - i->width = atoi(value); - if (i->width <= 0) return Y4M_ERR_RANGE; - break; - case 'H': /* height */ - i->height = atoi(value); - if (i->height <= 0) return Y4M_ERR_RANGE; - break; - case 'F': /* frame rate (fps) */ - if ((err = y4m_parse_ratio(&(i->framerate), value)) != Y4M_OK) - return err; - if (i->framerate.n < 0) return Y4M_ERR_RANGE; - break; - case 'I': /* interlacing */ - switch (value[0]) { - case 'p': i->interlace = Y4M_ILACE_NONE; break; - case 't': i->interlace = Y4M_ILACE_TOP_FIRST; break; - case 'b': i->interlace = Y4M_ILACE_BOTTOM_FIRST; break; - case '?': - default: - i->interlace = Y4M_UNKNOWN; break; - } - break; - case 'A': /* sample (pixel) aspect ratio */ - if ((err = y4m_parse_ratio(&(i->sampleaspect), value)) != Y4M_OK) - return err; - if (i->sampleaspect.n < 0) return Y4M_ERR_RANGE; - break; - case 'X': /* 'X' meta-tag */ - if ((err = y4m_xtag_add(&(i->x_tags), token)) != Y4M_OK) return err; - break; - default: - /* possible error on unknown options */ - if (_y4mparam_allow_unknown_tags) { - /* unknown tags ok: store in xtag list and warn... */ - if ((err = y4m_xtag_add(&(i->x_tags), token)) != Y4M_OK) return err; - mp_msg(MSGT_DEMUX, MSGL_WARN, "Unknown stream tag encountered: '%s'\n", token); - } else { - /* unknown tags are *not* ok */ - return Y4M_ERR_BADTAG; - } - break; - } - } - /* Error checking... width and height must be known since we can't - * parse without them - */ - if( i->width == Y4M_UNKNOWN || i->height == Y4M_UNKNOWN ) - return Y4M_ERR_HEADER; - /* ta da! done. */ - return Y4M_OK; -} - - - -static int y4m_parse_frame_tags(char *s, y4m_frame_info_t *i) -{ - char *token, *value av_unused; - char tag; - int err; - - /* parse fields */ - for (token = strtok(s, Y4M_DELIM); - token != NULL; - token = strtok(NULL, Y4M_DELIM)) { - if (token[0] == '\0') continue; /* skip empty strings */ - tag = token[0]; - value = token + 1; - switch (tag) { - case 'X': /* 'X' meta-tag */ - if ((err = y4m_xtag_add(&(i->x_tags), token)) != Y4M_OK) return err; - break; - default: - /* possible error on unknown options */ - if (_y4mparam_allow_unknown_tags) { - /* unknown tags ok: store in xtag list and warn... */ - if ((err = y4m_xtag_add(&(i->x_tags), token)) != Y4M_OK) return err; - mp_msg(MSGT_DEMUX, MSGL_WARN, "Unknown frame tag encountered: '%s'\n", token); - } else { - /* unknown tags are *not* ok */ - return Y4M_ERR_BADTAG; - } - break; - } - } - /* ta da! done. */ - return Y4M_OK; -} - - - - - -/************************************************************************* - * - * Read/Write stream header - * - *************************************************************************/ - - -int y4m_read_stream_header(stream_t *s, y4m_stream_info_t *i) -{ - char line[Y4M_LINE_MAX]; - char *p; - int n; - int err; - - /* read the header line */ - for (n = 0, p = line; n < Y4M_LINE_MAX; n++, p++) { - if (y4m_read(s, p, 1)) - return Y4M_ERR_SYSTEM; - if (*p == '\n') { - *p = '\0'; /* Replace linefeed by end of string */ - break; - } - } - if (n >= Y4M_LINE_MAX) - return Y4M_ERR_HEADER; - /* look for keyword in header */ - if (strncmp(line, Y4M_MAGIC, strlen(Y4M_MAGIC))) - return Y4M_ERR_MAGIC; - if ((err = y4m_parse_stream_tags(line + strlen(Y4M_MAGIC), i)) != Y4M_OK) - return err; - - i->framelength = (i->height * i->width) * 3 / 2; - return Y4M_OK; -} - - -#if 0 -int y4m_write_stream_header(int fd, y4m_stream_info_t *i) -{ - char s[Y4M_LINE_MAX+1]; - int n; - int err; - - y4m_ratio_reduce(&(i->framerate)); - y4m_ratio_reduce(&(i->sampleaspect)); - n = snprintf(s, sizeof(s), "%s W%d H%d F%d:%d I%s A%d:%d", - Y4M_MAGIC, - i->width, - i->height, - i->framerate.n, i->framerate.d, - (i->interlace == Y4M_ILACE_NONE) ? "p" : - (i->interlace == Y4M_ILACE_TOP_FIRST) ? "t" : - (i->interlace == Y4M_ILACE_BOTTOM_FIRST) ? "b" : "?", - i->sampleaspect.n, i->sampleaspect.d); - if ((n < 0) || (n > Y4M_LINE_MAX)) return Y4M_ERR_HEADER; - if ((err = y4m_snprint_xtags(s + n, sizeof(s) - n - 1, &(i->x_tags))) - != Y4M_OK) - return err; - /* non-zero on error */ - return (y4m_write(fd, s, strlen(s)) ? Y4M_ERR_SYSTEM : Y4M_OK); -} -#endif - - - - -/************************************************************************* - * - * Read/Write frame header - * - *************************************************************************/ - -int y4m_read_frame_header(stream_t *s, y4m_frame_info_t *i) -{ - char line[Y4M_LINE_MAX]; - char *p; - int n; - ssize_t remain; - - /* This is more clever than read_stream_header... - Try to read "FRAME\n" all at once, and don't try to parse - if nothing else is there... - */ - remain = y4m_read(s, line, sizeof(Y4M_FRAME_MAGIC)); - if (remain != 0) - { - /* A clean EOF should end exactly at a frame-boundary */ - if( remain == sizeof(Y4M_FRAME_MAGIC) ) - return Y4M_ERR_EOF; - else - return Y4M_ERR_SYSTEM; - } - if (strncmp(line, Y4M_FRAME_MAGIC, sizeof(Y4M_FRAME_MAGIC)-1)) - return Y4M_ERR_MAGIC; - if (line[sizeof(Y4M_FRAME_MAGIC)-1] == '\n') - return Y4M_OK; /* done -- no tags: that was the end-of-line. */ - - if (line[sizeof(Y4M_FRAME_MAGIC)-1] != Y4M_DELIM[0]) { - return Y4M_ERR_MAGIC; /* wasn't a space -- what was it? */ - } - - /* proceed to get the tags... (overwrite the magic) */ - for (n = 0, p = line; n < Y4M_LINE_MAX; n++, p++) { - if (y4m_read(s, p, 1)) - return Y4M_ERR_SYSTEM; - if (*p == '\n') { - *p = '\0'; /* Replace linefeed by end of string */ - break; - } - } - if (n >= Y4M_LINE_MAX) return Y4M_ERR_HEADER; - /* non-zero on error */ - return y4m_parse_frame_tags(line, i); -} - - -#if 0 -int y4m_write_frame_header(int fd, y4m_frame_info_t *i) -{ - char s[Y4M_LINE_MAX+1]; - int n; - int err; - - n = snprintf(s, sizeof(s), "%s", Y4M_FRAME_MAGIC); - if ((n < 0) || (n > Y4M_LINE_MAX)) return Y4M_ERR_HEADER; - if ((err = y4m_snprint_xtags(s + n, sizeof(s) - n - 1, &(i->x_tags))) - != Y4M_OK) - return err; - /* non-zero on error */ - return (y4m_write(fd, s, strlen(s)) ? Y4M_ERR_SYSTEM : Y4M_OK); -} -#endif - - - -/************************************************************************* - * - * Read/Write entire frame - * - *************************************************************************/ - -int y4m_read_frame(stream_t *s, y4m_stream_info_t *si, - y4m_frame_info_t *fi, unsigned char *yuv[3]) -{ - int err; - int w = si->width; - int h = si->height; - - /* Read frame header */ - if ((err = y4m_read_frame_header(s, fi)) != Y4M_OK) return err; - /* Read luminance scanlines */ - if (y4m_read(s, yuv[0], w*h)) return Y4M_ERR_SYSTEM; - /* Read chrominance scanlines */ - if (y4m_read(s, yuv[1], w*h/4)) return Y4M_ERR_SYSTEM; - if (y4m_read(s, yuv[2], w*h/4)) return Y4M_ERR_SYSTEM; - - return Y4M_OK; -} - - - -#if 0 -int y4m_write_frame(int fd, y4m_stream_info_t *si, - y4m_frame_info_t *fi, unsigned char *yuv[3]) -{ - int err; - int w = si->width; - int h = si->height; - - /* Write frame header */ - if ((err = y4m_write_frame_header(fd, fi)) != Y4M_OK) return err; - /* Write luminance,chrominance scanlines */ - if (y4m_write(fd, yuv[0], w*h) || - y4m_write(fd, yuv[1], w*h/4) || - y4m_write(fd, yuv[2], w*h/4)) - return Y4M_ERR_SYSTEM; - return Y4M_OK; -} -#endif - - -/************************************************************************* - * - * Read/Write entire frame, (de)interleaved (to)from two separate fields - * - *************************************************************************/ - -#if 0 -int y4m_read_fields(int fd, y4m_stream_info_t *si, y4m_frame_info_t *fi, - unsigned char *upper_field[3], - unsigned char *lower_field[3]) -{ - int i, y, err; - int width = si->width; - int height = si->height; - - /* Read frame header */ - if ((err = y4m_read_frame_header(fd, fi)) != Y4M_OK) return err; - /* Read Y', Cb, and Cr planes */ - for (i = 0; i < 3; i++) { - unsigned char *srctop = upper_field[i]; - unsigned char *srcbot = lower_field[i]; - /* alternately write one line from each */ - for (y = 0; y < height; y += 2) { - if (y4m_read(fd, srctop, width)) return Y4M_ERR_SYSTEM; - srctop += width; - if (y4m_read(fd, srcbot, width)) return Y4M_ERR_SYSTEM; - srcbot += width; - } - /* for chroma, width/height are half as big */ - if (i == 0) { - width /= 2; - height /= 2; - } - } - return Y4M_OK; -} - - - -int y4m_write_fields(int fd, y4m_stream_info_t *si, y4m_frame_info_t *fi, - unsigned char *upper_field[3], - unsigned char *lower_field[3]) -{ - int i, y, err; - int width = si->width; - int height = si->height; - - /* Write frame header */ - if ((err = y4m_write_frame_header(fd, fi)) != Y4M_OK) return err; - /* Write Y', Cb, and Cr planes */ - for (i = 0; i < 3; i++) { - unsigned char *srctop = upper_field[i]; - unsigned char *srcbot = lower_field[i]; - /* alternately write one line from each */ - for (y = 0; y < height; y += 2) { - if (y4m_write(fd, srctop, width)) return Y4M_ERR_SYSTEM; - srctop += width; - if (y4m_write(fd, srcbot, width)) return Y4M_ERR_SYSTEM; - srcbot += width; - } - /* for chroma, width/height are half as big */ - if (i == 0) { - width /= 2; - height /= 2; - } - } - return Y4M_OK; -} -#endif - - -/************************************************************************* - * - * Handy logging of stream info - * - *************************************************************************/ - -void y4m_log_stream_info(const char *prefix, y4m_stream_info_t *i) -{ - char s[256]; - - snprintf(s, sizeof(s), " frame size: "); - if (i->width == Y4M_UNKNOWN) - snprintf(s+strlen(s), sizeof(s)-strlen(s), "(?)x"); - else - snprintf(s+strlen(s), sizeof(s)-strlen(s), "%dx", i->width); - if (i->height == Y4M_UNKNOWN) - snprintf(s+strlen(s), sizeof(s)-strlen(s), "(?) pixels "); - else - snprintf(s+strlen(s), sizeof(s)-strlen(s), "%d pixels ", i->height); - if (i->framelength == Y4M_UNKNOWN) - snprintf(s+strlen(s), sizeof(s)-strlen(s), "(? bytes)"); - else - snprintf(s+strlen(s), sizeof(s)-strlen(s), "(%d bytes)", i->framelength); - mp_msg(MSGT_DEMUX, MSGL_V, "%s%s\n", prefix, s); - if ((i->framerate.n == 0) && (i->framerate.d == 0)) - mp_msg(MSGT_DEMUX, MSGL_V, "%s frame rate: ??? fps\n", prefix); - else - mp_msg(MSGT_DEMUX, MSGL_V, "%s frame rate: %d/%d fps (~%f)\n", prefix, - i->framerate.n, i->framerate.d, - (double) i->framerate.n / (double) i->framerate.d); - mp_msg(MSGT_DEMUX, MSGL_V, "%s interlace: %s\n", prefix, - (i->interlace == Y4M_ILACE_NONE) ? "none/progressive" : - (i->interlace == Y4M_ILACE_TOP_FIRST) ? "top-field-first" : - (i->interlace == Y4M_ILACE_BOTTOM_FIRST) ? "bottom-field-first" : - "anyone's guess"); - if ((i->sampleaspect.n == 0) && (i->sampleaspect.d == 0)) - mp_msg(MSGT_DEMUX, MSGL_V, "%ssample aspect ratio: ?:?\n", prefix); - else - mp_msg(MSGT_DEMUX, MSGL_V, "%ssample aspect ratio: %d:%d\n", prefix, - i->sampleaspect.n, i->sampleaspect.d); -} - - -/************************************************************************* - * - * Convert error code to string - * - *************************************************************************/ - -const char *y4m_strerr(int err) -{ - switch (err) { - case Y4M_OK: return "no error"; - case Y4M_ERR_RANGE: return "parameter out of range"; - case Y4M_ERR_SYSTEM: return "stream ended unexpectedly (failed read/write)"; - case Y4M_ERR_HEADER: return "bad stream or frame header"; - case Y4M_ERR_BADTAG: return "unknown header tag"; - case Y4M_ERR_MAGIC: return "bad header magic"; - case Y4M_ERR_XXTAGS: return "too many xtags"; - case Y4M_ERR_EOF: return "end-of-file"; - default: - return "unknown error code"; - } -} |