xmm_clobbers
"
-# options emitted with CONFIG_ prefix but not available on command line
+# options emitted with CONFIG_ prefix but not available on the command line
CONFIG_EXTRA="
aandcttables
ac3dsp
# causing a significant performance penality.
# If the system has enough physical memory increasing the cache will improve the
# performance by keeping more symbols in memory. Note that the value works on
-# a logarithmic scale so increasing the size by one will rougly double the
+# a logarithmic scale so increasing the size by one will roughly double the
# memory usage. The cache size is given by this formula:
# 2^(16+SYMBOL_CACHE_SIZE). The valid range is 0..9, the default is 0,
# corresponding to a cache size of 2^16 = 65536 symbols
code and name accordingly.
@end itemize
-@subsection Miscellanous conventions
+@subsection Miscellaneous conventions
@itemize @bullet
@item
fprintf and printf are forbidden in libavformat and libavcodec,
@var{hostname}:@var{display_number}.@var{screen_number} specifies the
X11 display name of the screen to grab from. @var{hostname} can be
-ommitted, and defaults to "localhost". The environment variable
+omitted, and defaults to "localhost". The environment variable
@env{DISPLAY} contains the default display name.
@var{x_offset} and @var{y_offset} specify the offsets of the grabbed
rate is the filesize
distortion is the quality
-lambda is a fixed value choosen as a tradeoff between quality and filesize
+lambda is a fixed value chosen as a tradeoff between quality and filesize
Is this equivalent to finding the best quality for a given max
filesize? The answer is yes. For each filesize limit there is some lambda
factor for which minimizing above will get you the best quality (using your
/ \
O-----2--4--O
-Finding the new best pathes and scores for each point of our new column is
-trivial given we know the previous column best pathes and scores:
+Finding the new best paths and scores for each point of our new column is
+trivial given we know the previous column best paths and scores:
O-----0-----8
\
cfrm->size + data_size + FF_INPUT_BUFFER_PADDING_SIZE);
// explicit check needed as memcpy below might not catch a NULL
if (!cfrm->data) {
- av_log(f->avctx, AV_LOG_ERROR, "realloc falure");
+ av_log(f->avctx, AV_LOG_ERROR, "realloc failure");
return -1;
}
for (w = 0; w < wi->num_windows*16; w += 16) {
AacPsyBand *bands = &pch->band[w];
- //5.4.2.3 "Spreading" & 5.4.3 "Spreaded Energy Calculation"
+ /* 5.4.2.3 "Spreading" & 5.4.3 "Spread Energy Calculation" */
spread_en[0] = bands[0].energy;
for (g = 1; g < num_bands; g++) {
bands[g].thr = FFMAX(bands[g].thr, bands[g-1].thr * coeffs[g].spread_hi[0]);
band->thr = FFMAX(PSY_3GPP_RPEMIN*band->thr, FFMIN(band->thr,
PSY_3GPP_RPELEV*pch->prev_band[w+g].thr_quiet));
- /* 5.6.1.3.1 "Prepatory steps of the perceptual entropy calculation" */
+ /* 5.6.1.3.1 "Preparatory steps of the perceptual entropy calculation" */
pe += calc_pe_3gpp(band);
a += band->pe_const;
active_lines += band->active_lines;
for (ch = 1; ch <= s->channels; ch++) {
/* transform coefficients for full-bandwidth channel */
decode_transform_coeffs_ch(s, blk, ch, &m);
- /* tranform coefficients for coupling channel come right after the
+ /* transform coefficients for coupling channel come right after the
coefficients for the first coupled channel*/
if (s->channel_in_cpl[ch]) {
if (!got_cplchan) {
* bit allocation parameters do not change between blocks
* no delta bit allocation
* no skipped data
- * no auxilliary data
+ * no auxiliary data
* no E-AC-3 metadata
*/
* the coefficients are scaled by 2^15.
* This array only contains the right half of the filter.
* This filter is likely identical to the one used in G.729, though this
- * could not be determined from the original comments with certainity.
+ * could not be determined from the original comments with certainty.
*/
extern const int16_t ff_acelp_interp_filter[61];
/**
* ratecontrol qmin qmax limiting method
- * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax.
+ * 0-> clipping, 1-> use a nice continuous function to limit qscale wthin qmin/qmax.
* - encoding: Set by user.
* - decoding: unused
*/
table[i][0] = -1; //codes
}
- /* first pass: map codes and compute auxillary table sizes */
+ /* first pass: map codes and compute auxiliary table sizes */
for (i = 0; i < nb_codes; i++) {
n = codes[i].bits;
code = codes[i].code;
s->skip_syntax = get_bits1(gbc);
parse_spx_atten_data = get_bits1(gbc);
- /* coupling strategy occurance and coupling use per block */
+ /* coupling strategy occurrence and coupling use per block */
num_cpl_blocks = 0;
if (s->channel_mode > 1) {
for (blk = 0; blk < s->num_blocks; blk++) {
} else {
if (!f->key_frame_ok) {
av_log(avctx, AV_LOG_ERROR,
- "Cant decode non keyframe without valid keyframe\n");
+ "Cannot decode non-keyframe without valid keyframe\n");
return AVERROR_INVALIDDATA;
}
p->key_frame = 0;
}
/* Now FLX is strange, in that it is "byte" as opposed to "pixel" run length compressed.
- * This does not give us any good oportunity to perform word endian conversion
+ * This does not give us any good opportunity to perform word endian conversion
* during decompression. So if it is required (i.e., this is not a LE target, we do
* a second pass over the line here, swapping the bytes.
*/
/**
* G.726 11bit float.
* G.726 Standard uses rather odd 11bit floating point arithmentic for
- * numerous occasions. It's a mistery to me why they did it this way
+ * numerous occasions. It's a mystery to me why they did it this way
* instead of simply using 32bit integer arithmetic.
*/
typedef struct Float11 {
if (!interl)
poc |= 3;
- else if( interl && (poc&3) == 3) //FIXME store all MBAFF references so this isnt needed
+ else if( interl && (poc&3) == 3) // FIXME: store all MBAFF references so this is not needed
poc= (poc&~3) + rfield + 1;
for(j=start; j<end; j++){
/**
* Pack two delta values (a,b) into one 16bit word
- * according with endianess of the host machine.
+ * according with endianness of the host machine.
*/
#if HAVE_BIGENDIAN
#define PD(a,b) (((a) << 8) + (b))
/**
* Pack four delta values (a,a,b,b) into one 32bit word
- * according with endianess of the host machine.
+ * according with endianness of the host machine.
*/
#if HAVE_BIGENDIAN
#define PD(a,b) (((a) << 24) + ((a) << 16) + ((b) << 8) + (b))
}
/* Comment from reference source:
* if (b & 0x80 == 0) { // order of operations is 'wrong'; it has been left this way
- * // since the compression change is negligable and fixing it
- * // breaks backwards compatibilty
+ * // since the compression change is negligible and fixing it
+ * // breaks backwards compatibility
* b =- (signed int)b;
* b &= 0xFF;
* } else {
}
if ((err = aacEncoder_SetParam(s->handle, AACENC_BANDWIDTH,
avctx->cutoff)) != AACENC_OK) {
- av_log(avctx, AV_LOG_ERROR, "Unable to set the encoder bandwith to %d: %s\n",
+ av_log(avctx, AV_LOG_ERROR, "Unable to set the encoder bandwidth to %d: %s\n",
avctx->cutoff, aac_get_error(err));
goto error;
}
memcpy(pkt->data, o_packet.packet, o_packet.bytes);
// HACK: assumes no encoder delay, this is true until libtheora becomes
- // multithreaded (which will be disabled unless explictly requested)
+ // multithreaded (which will be disabled unless explicitly requested)
pkt->pts = pkt->dts = frame->pts;
avc_context->coded_frame->key_frame = !(o_packet.granulepos & h->keyframe_mask);
if (avc_context->coded_frame->key_frame)
* @param[in,out] block MB coefficients, these will be restored
* @param[in] dir ac prediction direction for each 8x8 block
* @param[out] st scantable for each 8x8 block
- * @param[in] zigzag_last_index index refering to the last non zero coefficient in zigzag order
+ * @param[in] zigzag_last_index index referring to the last non zero coefficient in zigzag order
*/
static inline void restore_ac_coeffs(MpegEncContext * s, DCTELEM block[6][64], const int dir[6], uint8_t *st[6], const int zigzag_last_index[6])
{
* @param[in,out] block MB coefficients, these will be updated if 1 is returned
* @param[in] dir ac prediction direction for each 8x8 block
* @param[out] st scantable for each 8x8 block
- * @param[out] zigzag_last_index index refering to the last non zero coefficient in zigzag order
+ * @param[out] zigzag_last_index index referring to the last non zero coefficient in zigzag order
*/
static inline int decide_ac_pred(MpegEncContext * s, DCTELEM block[6][64], const int dir[6], uint8_t *st[6], int zigzag_last_index[6])
{
if ( s->cur_offset + off >= s->cur_frame_offset[i]
&& (s->frame_offset < s->cur_frame_offset[i] ||
(!s->frame_offset && !s->next_frame_offset)) // first field/frame
- //check is disabled because mpeg-ts doesnt send complete PES packets
+ // check disabled since MPEG-TS does not send complete PES packets
&& /*s->next_frame_offset + off <*/ s->cur_frame_end[i]){
s->dts= s->cur_frame_dts[i];
s->pts= s->cur_frame_pts[i];
int pass;
for(pass = 0; pass < NB_PASSES; pass++) {
- /* NOTE: a pass is completely omited if no pixels would be
+ /* NOTE: a pass is completely omitted if no pixels would be
output */
pass_row_size = ff_png_pass_row_size(pass, bits_per_pixel, avctx->width);
if (pass_row_size > 0) {
AVCodecContext *a= s->avctx;
int i, toobig;
double fps= 1/av_q2d(s->avctx->time_base);
- double complexity[5]={0,0,0,0,0}; // aproximate bits at quant=1
+ double complexity[5]={0,0,0,0,0}; // approximate bits at quant=1
uint64_t const_bits[5]={0,0,0,0,0}; // quantizer independent bits
uint64_t all_const_bits;
uint64_t all_available_bits= (uint64_t)(s->bit_rate*(double)rcc->num_entries/fps);
if (av_audio_convert(s->convert_ctx[1], obuf, ostride,
ibuf, istride, nb_samples1 * s->output_channels) < 0) {
av_log(s->resample_context, AV_LOG_ERROR,
- "Audio sample format convertion failed\n");
+ "Audio sample format conversion failed\n");
return 0;
}
}
*got_frame = 1;
ff_print_debug_info(s, pict);
}
- s->current_picture_ptr= NULL; //so we can detect if frame_end wasnt called (find some nicer solution...)
+ s->current_picture_ptr= NULL; // so we can detect if frame_end was not called (find some nicer solution...)
}
return avpkt->size;
/* get Rice code for residual decoding */
if (cmd != FN_ZERO) {
residual_size = get_ur_golomb_shorten(&s->gb, ENERGYSIZE);
- /* this is a hack as version 0 differed in defintion of get_sr_golomb_shorten */
+ /* This is a hack as version 0 differed in the definition
+ * of get_sr_golomb_shorten(). */
if (s->version == 0)
residual_size--;
}
* Returns the next available frame in picture. *got_picture_ptr
* will be 0 if none is available.
* The return value on success is the size of the consumed packet for
- * compatiblity with avcodec_decode_video2(). This means the decoder
+ * compatibility with avcodec_decode_video2(). This means the decoder
* has to consume the full packet.
*
* Parameters are the same as avcodec_decode_video2().
#endif
/* Each VCL NAL in the bistream sent to the decoder
- * is preceeded by a 4 bytes length header.
+ * is preceded by a 4 bytes length header.
* Change the avcC atom header if needed, to signal headers of 4 bytes. */
if (extradata_size >= 4 && (extradata[4] & 0x03) != 0x03) {
uint8_t *rw_extradata;
if (highroom < lowroom) {
room = highroom * 2;
} else {
- room = lowroom * 2; // SPEC mispelling
+ room = lowroom * 2; // SPEC misspelling
}
if (val) {
floor1_flag[low_neigh_offs] = 1;
* second dimension: 0 if no vertical interpolation is needed;
* 1 4-tap vertical interpolation filter (my & 1)
* 2 6-tap vertical interpolation filter (!(my & 1))
- * third dimension: same as second dimention, for horizontal interpolation
+ * third dimension: same as second dimension, for horizontal interpolation
* so something like put_vp8_epel_pixels_tab[width>>3][2*!!my-(my&1)][2*!!mx-(mx&1)](..., mx, my)
*/
vp8_mc_func put_vp8_epel_pixels_tab[3][3][3];
int c;
/* Should never consume more than 3073 bits (256 iterations for the
- * while loop when always the minimum amount of 128 samples is substracted
+ * while loop when always the minimum amount of 128 samples is subtracted
* from missing samples in the 8 channel case).
* 1 + BLOCK_MAX_SIZE * MAX_CHANNELS / BLOCK_MIN_SIZE * (MAX_CHANNELS + 4)
*/
s->channels_for_cur_subframe = 0;
for (i = 0; i < s->avctx->channels; i++) {
const int cur_subframe = s->channel[i].cur_subframe;
- /** substract already processed samples */
+ /** subtract already processed samples */
total_samples -= s->channel[i].decoded_samples;
/** and count if there are multiple subframes that match our profile */
where copy_DV_frame() reads or writes on the dv1394 file descriptor
(read/write mode) or copies data to/from the mmap ringbuffer and
then calls ioctl(DV1394_SUBMIT_FRAMES) to notify dv1394 that new
- frames are availble (mmap mode).
+ frames are available (mmap mode).
reset_dv1394() is called in the event of a buffer
underflow/overflow or a halt in the DV stream (e.g. due to a 1394
* @ingroup libavf
* @{
*
- * Miscelaneous utility functions related to both muxing and demuxing
+ * Miscellaneous utility functions related to both muxing and demuxing
* (or neither).
*/
int max_buffer_size = s->max_packet_size ?
s->max_packet_size : IO_BUFFER_SIZE;
- /* can't fill the buffer without read_packet, just set EOF if appropiate */
+ /* can't fill the buffer without read_packet, just set EOF if appropriate */
if (!s->read_packet && s->buf_ptr >= s->buf_end)
s->eof_reached = 1;
AVFifoBuffer *audio_data[2]; /* FIFO for storing excessive amounts of PCM */
int frames; /* current frame number */
int64_t start_time; /* recording start time */
- int has_audio; /* frame under contruction has audio */
- int has_video; /* frame under contruction has video */
- uint8_t frame_buf[DV_MAX_FRAME_SIZE]; /* frame under contruction */
+ int has_audio; /* frame under construction has audio */
+ int has_video; /* frame under construction has video */
+ uint8_t frame_buf[DV_MAX_FRAME_SIZE]; /* frame under construction */
};
static const int dv_aaux_packs_dist[12][9] = {
* An apple http stream consists of a playlist with media segment files,
* played sequentially. There may be several playlists with the same
* video content, in different bandwidth variants, that are played in
- * parallel (preferrably only one bandwidth variant at a time). In this case,
+ * parallel (preferably only one bandwidth variant at a time). In this case,
* the user supplied the url to a main playlist that only lists the variant
* playlists.
*
* An apple http stream consists of a playlist with media segment files,
* played sequentially. There may be several playlists with the same
* video content, in different bandwidth variants, that are played in
- * parallel (preferrably only one bandwidth variant at a time). In this case,
+ * parallel (preferably only one bandwidth variant at a time). In this case,
* the user supplied the url to a main playlist that only lists the variant
* playlists.
*
*
* @param h pointer to the ressource
* @param uri uri used to perform the request
- * @return a negative value if an error condition occured, 0
+ * @return a negative value if an error condition occurred, 0
* otherwise
*/
int ff_http_do_new_request(URLContext *h, const char *uri);
/* Prepare the JPEG packet. */
if ((ret = ff_rtp_finalize_packet(pkt, &jpeg->frame, st->index)) < 0) {
av_log(ctx, AV_LOG_ERROR,
- "Error occured when getting frame buffer.\n");
+ "Error occurred when getting frame buffer.\n");
return ret;
}
char dirname[1024];
uint8_t iobuf[32768];
URLContext *out; // Current output stream where all output is written
- URLContext *out2; // Auxillary output stream where all output also is written
+ URLContext *out2; // Auxiliary output stream where all output is also written
URLContext *tail_out; // The actual main output stream, if we're currently seeked back to write elsewhere
int64_t tail_pos, cur_pos, cur_start_pos;
int packets_written;
ctx->data_type = mpeg_data_type [version & 1][layer];
ctx->pkt_offset = spdif_mpeg_pkt_offset[version & 1][layer];
}
- // TODO Data type dependant info (normal/karaoke, dynamic range control)
+ // TODO Data type dependent info (normal/karaoke, dynamic range control)
return 0;
}
}
wf->length = length;
- /* seek to intial sector */
+ /* seek to initial sector */
wf->position = 0;
if (avio_seek(s->pb, (int64_t)wf->sectors[0] << WTV_SECTOR_BITS, SEEK_SET) < 0) {
av_free(wf->sectors);
* short for every audio track. But as playing around with XMV files with
* ADPCM audio showed, taking the extra 4 bytes from the audio data gives
* you either completely distorted audio or click (when skipping the
- * remaining 68 bytes of the ADPCM block). Substracting 4 bytes for every
+ * remaining 68 bytes of the ADPCM block). Subtracting 4 bytes for every
* audio track from the video data works at least for the audio. Probably
* some alignment thing?
* The video data has (always?) lots of padding, so it should work out...
a += M_PI * 1000.0 * 2.0 / sample_rate;
}
- /* 1 second of varing frequency between 100 and 10000 Hz */
+ /* 1 second of varying frequency between 100 and 10000 Hz */
a = 0;
for (i = 0; i < 1 * sample_rate && k < nb_samples; i++, k++) {
v = sin(a) * 0.30;
/*
- * AltiVec-enhanced yuv-to-yuv convertion routines.
+ * AltiVec-enhanced yuv-to-yuv conversion routines.
*
* Copyright (C) 2004 Romain Dolbeau <romain@dolbeau.org>
* based on the equivalent C code in swscale.c
}
}
-// FIXME all pal and rgb srcFormats could do this convertion as well
+// FIXME all pal and rgb srcFormats could do this conversion as well
// FIXME all scalers more complex than bilinear could do half of this transform
static void chrRangeToJpeg_c(int16_t *dstU, int16_t *dstV, int width)
{
a += (1000 * FRAC_ONE) / sample_rate;
}
- /* 1 second of varing frequency between 100 and 10000 Hz */
+ /* 1 second of varying frequency between 100 and 10000 Hz */
a = 0;
for (i = 0; i < 1 * sample_rate; i++) {
v = (int_cos(a) * 10000) >> FRAC_BITS;
echo being free of false positives and negatives, its output are just hints of what
echo may or may not be bad. When you use it and it misses something or detects
echo something wrong, fix it and send a patch to the libav-devel mailing list.
-echo License:GPL Autor: Michael Niedermayer
+echo License:GPL Author: Michael Niedermayer
ERE_PRITYP='(unsigned *|)(char|short|long|int|long *int|short *int|void|float|double|(u|)int(8|16|32|64)_t)'
ERE_TYPES='(const|static|av_cold|inline| *)*('$ERE_PRITYP'|[a-zA-Z][a-zA-Z0-9_]*)[* ]{1,}[a-zA-Z][a-zA-Z0-9_]*'
cat $TMP | tr '@' '\n'
-# doesnt work
+# does not work
#cat $* | tr '\n' '@' | $EGREP -o '[^a-zA-Z_0-9]([a-zA-Z][a-zA-Z_0-9]*) *=[^=].*\1' | $EGREP -o '[^a-zA-Z_0-9]([a-zA-Z][a-zA-Z_0-9]*) *=[^=].*\1 *=[^=]' >$TMP && printf "\nPossibly written 2x before read\n"
#cat $TMP | tr '@' '\n'
projects / ffmpeg / commitdiff