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ffmpeg.wasm-core
Commit 15d6e361 authored by Diego Biurrun's avatar Diego Biurrun
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spelling cosmetics 

Originally committed as revision 14064 to svn://svn.ffmpeg.org/ffmpeg/trunk
parent ab52eb8e
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Showing with 25 additions and 23 deletions
libavformat/avidec.c
View file @ 15d6e361
/*
* AVI demuxer
* Copyright (c) 2001 Fabrice Bellard.
* Copyright (c) 2001 Fabrice Bellard
*
* This file is part of FFmpeg.
*
......@@ -101,7 +101,7 @@ static int get_riff(AVIContext *avi, ByteIOContext *pb)
return -1;
if(header[7] == 0x19)
av_log(NULL, AV_LOG_INFO, "file has been generated with a totally broken muxer\n");
av_log(NULL, AV_LOG_INFO, "This file has been generated by a totally broken muxer.\n");
return 0;
}
......@@ -262,7 +262,7 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
switch(tag) {
case MKTAG('L', 'I', 'S', 'T'):
/* ignored, except when start of video packets */
/* Ignored, except at start of video packets. */
tag1 = get_le32(pb);
#ifdef DEBUG
print_tag("list", tag1, 0);
......@@ -284,7 +284,7 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
case MKTAG('a', 'm', 'v', 'h'):
amv_file_format=1;
case MKTAG('a', 'v', 'i', 'h'):
/* avi header */
/* AVI header */
/* using frame_period is bad idea */
frame_period = get_le32(pb);
bit_rate = get_le32(pb) * 8;
......@@ -330,7 +330,7 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
/*
* After some consideration -- I don't think we
* have to support anything but DV in a type1 AVIs.
* have to support anything but DV in type1 AVIs.
*/
if (s->nb_streams != 1)
goto fail;
......@@ -362,7 +362,7 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
}
/*
* else, leave duration alone; timing estimation in utils.c
* will make a guess based on bit rate.
* will make a guess based on bitrate.
*/
stream_index = s->nb_streams - 1;
......@@ -380,7 +380,7 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
ast->scale = get_le32(pb);
ast->rate = get_le32(pb);
if(!(ast->scale && ast->rate)){
av_log(s, AV_LOG_WARNING, "Scale/Rate is %u/%u which is invalid. (This file has been generated by broken software)\n", ast->scale, ast->rate);
av_log(s, AV_LOG_WARNING, "scale/rate is %u/%u which is invalid. (This file has been generated by broken software.)\n", ast->scale, ast->rate);
if(frame_period){
ast->rate = 1000000;
ast->scale = frame_period;
......@@ -469,9 +469,9 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
if(st->codec->extradata_size & 1) //FIXME check if the encoder really did this correctly
get_byte(pb);
/* Extract palette from extradata if bpp <= 8 */
/* This code assumes that extradata contains only palette */
/* This is true for all paletted codecs implemented in ffmpeg */
/* Extract palette from extradata if bpp <= 8. */
/* This code assumes that extradata contains only palette. */
/* This is true for all paletted codecs implemented in FFmpeg. */
if (st->codec->extradata_size && (st->codec->bits_per_sample <= 8)) {
st->codec->palctrl = av_mallocz(sizeof(AVPaletteControl));
#ifdef WORDS_BIGENDIAN
......@@ -490,7 +490,7 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
st->codec->codec_type = CODEC_TYPE_VIDEO;
st->codec->codec_tag = tag1;
st->codec->codec_id = codec_get_id(codec_bmp_tags, tag1);
st->need_parsing = AVSTREAM_PARSE_HEADERS; // this is needed to get the pict type which is needed for generating correct pts
st->need_parsing = AVSTREAM_PARSE_HEADERS; // This is needed to get the pict type which is necessary for generating correct pts.
// url_fskip(pb, size - 5 * 4);
break;
case CODEC_TYPE_AUDIO:
......@@ -502,9 +502,11 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
if (size%2) /* 2-aligned (fix for Stargate SG-1 - 3x18 - Shades of Grey.avi) */
url_fskip(pb, 1);
/* Force parsing as several audio frames can be in
* one packet and timestamps refer to packet start*/
* one packet and timestamps refer to packet start. */
st->need_parsing = AVSTREAM_PARSE_TIMESTAMPS;
/* ADTS header is in extradata, AAC without header must be stored as exact frames, parser not needed and it will fail */
/* ADTS header is in extradata, AAC without header must be
* stored as exact frames. Parser not needed and it will
* fail. */
if (st->codec->codec_id == CODEC_ID_AAC && st->codec->extradata_size)
st->need_parsing = AVSTREAM_PARSE_NONE;
/* AVI files with Xan DPCM audio (wrongly) declare PCM
......@@ -581,8 +583,8 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
break;
default:
if(size > 1000000){
av_log(s, AV_LOG_ERROR, "well something went wrong during header parsing, "
"ill ignore it and try to continue anyway\n");
av_log(s, AV_LOG_ERROR, "Something went wrong during header parsing, "
"I will ignore it and try to continue anyway.\n");
avi->movi_list = url_ftell(pb) - 4;
avi->movi_end = url_fsize(pb);
goto end_of_header;
......@@ -605,7 +607,7 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
avi->index_loaded = 1;
avi->non_interleaved |= guess_ni_flag(s);
if(avi->non_interleaved) {
av_log(s, AV_LOG_INFO, "Non interleaved AVI\n");
av_log(s, AV_LOG_INFO, "non-interleaved AVI\n");
clean_index(s);
}
......@@ -707,7 +709,7 @@ resync:
pkt->destruct = dstr;
pkt->flags |= PKT_FLAG_KEY;
} else {
/* XXX: how to handle B frames in avi ? */
/* XXX: How to handle B-frames in AVI? */
pkt->dts = ast->frame_offset;
// pkt->dts += ast->start;
if(ast->sample_size)
......@@ -778,7 +780,7 @@ resync:
&& d[1] >= '0' && d[1] <= '9'){
n= (d[0] - '0') * 10 + (d[1] - '0');
}else{
n= 100; //invalid stream id
n= 100; //invalid stream ID
}
//parse ##dc/##wb
......@@ -802,7 +804,7 @@ resync:
n=1;
st = st1;
ast = ast1;
av_log(s, AV_LOG_WARNING, "Invalid stream+prefix combination, assuming audio\n");
av_log(s, AV_LOG_WARNING, "Invalid stream + prefix combination, assuming audio.\n");
}
}
......@@ -857,8 +859,8 @@ resync:
return -1;
}
/* XXX: we make the implicit supposition that the position are sorted
for each stream */
/* XXX: We make the implicit supposition that the positions are sorted
for each stream. */
static int avi_read_idx1(AVFormatContext *s, int size)
{
AVIContext *avi = s->priv_data;
......@@ -873,7 +875,7 @@ static int avi_read_idx1(AVFormatContext *s, int size)
if (nb_index_entries <= 0)
return -1;
/* read the entries and sort them in each stream component */
/* Read the entries and sort them in each stream component. */
for(i = 0; i < nb_index_entries; i++) {
tag = get_le32(pb);
flags = get_le32(pb);
......@@ -1005,7 +1007,7 @@ static int avi_read_seek(AVFormatContext *s, int stream_index, int64_t timestamp
assert(stream_index == 0);
/* Feed the DV video stream version of the timestamp to the */
/* DV demux so it can synth correct timestamps */
/* DV demux so it can synthesize correct timestamps. */
dv_offset_reset(avi->dv_demux, timestamp);
url_fseek(s->pb, pos, SEEK_SET);
......
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