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nuv: cosmetics: pretty-printing

tags/n1.1
Justin Ruggles 13 years ago
parent
5c7bf2ddde
commit
c74f81786d
1 changed files with 147 additions and 132 deletions
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  1. +147
    -132
      libavformat/nuv.c

+ 147
- 132
libavformat/nuv.c View File

@@ -39,14 +39,15 @@ typedef struct {
} NUVContext;

typedef enum {
NUV_VIDEO = 'V',
NUV_VIDEO = 'V',
NUV_EXTRADATA = 'D',
NUV_AUDIO = 'A',
NUV_SEEKP = 'R',
NUV_MYTHEXT = 'X'
NUV_AUDIO = 'A',
NUV_SEEKP = 'R',
NUV_MYTHEXT = 'X'
} nuv_frametype;

static int nuv_probe(AVProbeData *p) {
static int nuv_probe(AVProbeData *p)
{
if (!memcmp(p->buf, "NuppelVideo", 12))
return AVPROBE_SCORE_MAX;
if (!memcmp(p->buf, "MythTVVideo", 12))
@@ -65,83 +66,87 @@ static int nuv_probe(AVProbeData *p) {
* @return 1 if all required codec data was found
*/
static int get_codec_data(AVIOContext *pb, AVStream *vst,
AVStream *ast, int myth) {
AVStream *ast, int myth)
{
nuv_frametype frametype;

if (!vst && !myth)
return 1; // no codec data needed
while (!pb->eof_reached) {
int size, subtype;

frametype = avio_r8(pb);
switch (frametype) {
case NUV_EXTRADATA:
subtype = avio_r8(pb);
avio_skip(pb, 6);
size = PKTSIZE(avio_rl32(pb));
if (vst && subtype == 'R') {
vst->codec->extradata_size = size;
vst->codec->extradata = av_malloc(size);
avio_read(pb, vst->codec->extradata, size);
size = 0;
if (!myth)
return 1;
}
case NUV_EXTRADATA:
subtype = avio_r8(pb);
avio_skip(pb, 6);
size = PKTSIZE(avio_rl32(pb));
if (vst && subtype == 'R') {
vst->codec->extradata_size = size;
vst->codec->extradata = av_malloc(size);
avio_read(pb, vst->codec->extradata, size);
size = 0;
if (!myth)
return 1;
}
break;
case NUV_MYTHEXT:
avio_skip(pb, 7);
size = PKTSIZE(avio_rl32(pb));
if (size != 128 * 4)
break;
case NUV_MYTHEXT:
avio_skip(pb, 7);
size = PKTSIZE(avio_rl32(pb));
if (size != 128 * 4)
break;
avio_rl32(pb); // version
if (vst) {
vst->codec->codec_tag = avio_rl32(pb);
vst->codec->codec_id =
ff_codec_get_id(ff_codec_bmp_tags, vst->codec->codec_tag);
if (vst->codec->codec_tag == MKTAG('R', 'J', 'P', 'G'))
vst->codec->codec_id = AV_CODEC_ID_NUV;
} else
avio_skip(pb, 4);
avio_rl32(pb); // version
if (vst) {
vst->codec->codec_tag = avio_rl32(pb);
vst->codec->codec_id =
ff_codec_get_id(ff_codec_bmp_tags, vst->codec->codec_tag);
if (vst->codec->codec_tag == MKTAG('R', 'J', 'P', 'G'))
vst->codec->codec_id = AV_CODEC_ID_NUV;
} else
avio_skip(pb, 4);

if (ast) {
int id;
if (ast) {
int id;

ast->codec->codec_tag = avio_rl32(pb);
ast->codec->sample_rate = avio_rl32(pb);
ast->codec->bits_per_coded_sample = avio_rl32(pb);
ast->codec->channels = avio_rl32(pb);
ast->codec->channel_layout = 0;
ast->codec->codec_tag = avio_rl32(pb);
ast->codec->sample_rate = avio_rl32(pb);
ast->codec->bits_per_coded_sample = avio_rl32(pb);
ast->codec->channels = avio_rl32(pb);
ast->codec->channel_layout = 0;

id = ff_wav_codec_get_id(ast->codec->codec_tag,
ast->codec->bits_per_coded_sample);
if (id == AV_CODEC_ID_NONE) {
id = ff_codec_get_id(nuv_audio_tags,
ast->codec->codec_tag);
if (id == AV_CODEC_ID_PCM_S16LE)
id = ff_get_pcm_codec_id(ast->codec->bits_per_coded_sample,
0, 0, ~1);
}
ast->codec->codec_id = id;
id = ff_wav_codec_get_id(ast->codec->codec_tag,
ast->codec->bits_per_coded_sample);
if (id == AV_CODEC_ID_NONE) {
id = ff_codec_get_id(nuv_audio_tags, ast->codec->codec_tag);
if (id == AV_CODEC_ID_PCM_S16LE)
id = ff_get_pcm_codec_id(ast->codec->bits_per_coded_sample,
0, 0, ~1);
}
ast->codec->codec_id = id;

ast->need_parsing = AVSTREAM_PARSE_FULL;
} else
avio_skip(pb, 4 * 4);
ast->need_parsing = AVSTREAM_PARSE_FULL;
} else
avio_skip(pb, 4 * 4);

size -= 6 * 4;
avio_skip(pb, size);
return 1;
case NUV_SEEKP:
size = 11;
break;
default:
avio_skip(pb, 7);
size = PKTSIZE(avio_rl32(pb));
break;
size -= 6 * 4;
avio_skip(pb, size);
return 1;
case NUV_SEEKP:
size = 11;
break;
default:
avio_skip(pb, 7);
size = PKTSIZE(avio_rl32(pb));
break;
}
avio_skip(pb, size);
}

return 0;
}

static int nuv_header(AVFormatContext *s) {
static int nuv_header(AVFormatContext *s)
{
NUVContext *ctx = s->priv_data;
AVIOContext *pb = s->pb;
char id_string[12];
@@ -149,16 +154,17 @@ static int nuv_header(AVFormatContext *s) {
int is_mythtv, width, height, v_packs, a_packs;
int stream_nr = 0;
AVStream *vst = NULL, *ast = NULL;

avio_read(pb, id_string, 12);
is_mythtv = !memcmp(id_string, "MythTVVideo", 12);
avio_skip(pb, 5); // version string
avio_skip(pb, 3); // padding
width = avio_rl32(pb);
avio_skip(pb, 5); // version string
avio_skip(pb, 3); // padding
width = avio_rl32(pb);
height = avio_rl32(pb);
avio_rl32(pb); // unused, "desiredwidth"
avio_rl32(pb); // unused, "desiredheight"
avio_r8(pb); // 'P' == progressive, 'I' == interlaced
avio_skip(pb, 3); // padding
avio_rl32(pb); // unused, "desiredwidth"
avio_rl32(pb); // unused, "desiredheight"
avio_r8(pb); // 'P' == progressive, 'I' == interlaced
avio_skip(pb, 3); // padding
aspect = av_int2double(avio_rl64(pb));
if (aspect > 0.9999 && aspect < 1.0001)
aspect = 4.0 / 3.0;
@@ -173,15 +179,16 @@ static int nuv_header(AVFormatContext *s) {

if (v_packs) {
ctx->v_id = stream_nr++;
vst = avformat_new_stream(s, NULL);
vst = avformat_new_stream(s, NULL);
if (!vst)
return AVERROR(ENOMEM);
vst->codec->codec_type = AVMEDIA_TYPE_VIDEO;
vst->codec->codec_id = AV_CODEC_ID_NUV;
vst->codec->width = width;
vst->codec->height = height;
vst->codec->codec_type = AVMEDIA_TYPE_VIDEO;
vst->codec->codec_id = AV_CODEC_ID_NUV;
vst->codec->width = width;
vst->codec->height = height;
vst->codec->bits_per_coded_sample = 10;
vst->sample_aspect_ratio = av_d2q(aspect * height / width, 10000);
vst->sample_aspect_ratio = av_d2q(aspect * height / width,
10000);
#if FF_API_R_FRAME_RATE
vst->r_frame_rate =
#endif
@@ -192,16 +199,16 @@ static int nuv_header(AVFormatContext *s) {

if (a_packs) {
ctx->a_id = stream_nr++;
ast = avformat_new_stream(s, NULL);
ast = avformat_new_stream(s, NULL);
if (!ast)
return AVERROR(ENOMEM);
ast->codec->codec_type = AVMEDIA_TYPE_AUDIO;
ast->codec->codec_id = AV_CODEC_ID_PCM_S16LE;
ast->codec->channels = 2;
ast->codec->channel_layout = AV_CH_LAYOUT_STEREO;
ast->codec->sample_rate = 44100;
ast->codec->bit_rate = 2 * 2 * 44100 * 8;
ast->codec->block_align = 2 * 2;
ast->codec->codec_type = AVMEDIA_TYPE_AUDIO;
ast->codec->codec_id = AV_CODEC_ID_PCM_S16LE;
ast->codec->channels = 2;
ast->codec->channel_layout = AV_CH_LAYOUT_STEREO;
ast->codec->sample_rate = 44100;
ast->codec->bit_rate = 2 * 2 * 44100 * 8;
ast->codec->block_align = 2 * 2;
ast->codec->bits_per_coded_sample = 16;
avpriv_set_pts_info(ast, 32, 1, 1000);
} else
@@ -209,76 +216,84 @@ static int nuv_header(AVFormatContext *s) {

get_codec_data(pb, vst, ast, is_mythtv);
ctx->rtjpg_video = vst && vst->codec->codec_id == AV_CODEC_ID_NUV;

return 0;
}

#define HDRSIZE 12

static int nuv_packet(AVFormatContext *s, AVPacket *pkt) {
static int nuv_packet(AVFormatContext *s, AVPacket *pkt)
{
NUVContext *ctx = s->priv_data;
AVIOContext *pb = s->pb;
uint8_t hdr[HDRSIZE];
nuv_frametype frametype;
int ret, size;

while (!pb->eof_reached) {
int copyhdrsize = ctx->rtjpg_video ? HDRSIZE : 0;
uint64_t pos = avio_tell(pb);
uint64_t pos = avio_tell(pb);

ret = avio_read(pb, hdr, HDRSIZE);
if (ret < HDRSIZE)
return ret < 0 ? ret : AVERROR(EIO);

frametype = hdr[0];
size = PKTSIZE(AV_RL32(&hdr[8]));
size = PKTSIZE(AV_RL32(&hdr[8]));

switch (frametype) {
case NUV_EXTRADATA:
if (!ctx->rtjpg_video) {
avio_skip(pb, size);
break;
}
case NUV_VIDEO:
if (ctx->v_id < 0) {
av_log(s, AV_LOG_ERROR, "Video packet in file without video stream!\n");
avio_skip(pb, size);
break;
}
ret = av_new_packet(pkt, copyhdrsize + size);
if (ret < 0)
return ret;
// HACK: we have no idea if it is a keyframe,
// but if we mark none seeking will not work at all.
pkt->flags |= AV_PKT_FLAG_KEY;
pkt->pos = pos;
pkt->pts = AV_RL32(&hdr[4]);
pkt->stream_index = ctx->v_id;
memcpy(pkt->data, hdr, copyhdrsize);
ret = avio_read(pb, pkt->data + copyhdrsize, size);
if (ret < 0) {
av_free_packet(pkt);
return ret;
}
if (ret < size)
av_shrink_packet(pkt, copyhdrsize + ret);
return 0;
case NUV_AUDIO:
if (ctx->a_id < 0) {
av_log(s, AV_LOG_ERROR, "Audio packet in file without audio stream!\n");
avio_skip(pb, size);
break;
}
ret = av_get_packet(pb, pkt, size);
pkt->flags |= AV_PKT_FLAG_KEY;
pkt->pos = pos;
pkt->pts = AV_RL32(&hdr[4]);
pkt->stream_index = ctx->a_id;
if (ret < 0) return ret;
return 0;
case NUV_SEEKP:
// contains no data, size value is invalid
case NUV_EXTRADATA:
if (!ctx->rtjpg_video) {
avio_skip(pb, size);
break;
default:
}
case NUV_VIDEO:
if (ctx->v_id < 0) {
av_log(s, AV_LOG_ERROR, "Video packet in file without video stream!\n");
avio_skip(pb, size);
break;
}
ret = av_new_packet(pkt, copyhdrsize + size);
if (ret < 0)
return ret;
// HACK: we have no idea if it is a keyframe,
// but if we mark none seeking will not work at all.
pkt->flags |= AV_PKT_FLAG_KEY;
pkt->pos = pos;
pkt->pts = AV_RL32(&hdr[4]);
pkt->stream_index = ctx->v_id;
memcpy(pkt->data, hdr, copyhdrsize);
ret = avio_read(pb, pkt->data + copyhdrsize, size);
if (ret < 0) {
av_free_packet(pkt);
return ret;
}
if (ret < size)
av_shrink_packet(pkt, copyhdrsize + ret);
return 0;
case NUV_AUDIO:
if (ctx->a_id < 0) {
av_log(s, AV_LOG_ERROR, "Audio packet in file without audio stream!\n");
avio_skip(pb, size);
break;
}
ret = av_get_packet(pb, pkt, size);
pkt->flags |= AV_PKT_FLAG_KEY;
pkt->pos = pos;
pkt->pts = AV_RL32(&hdr[4]);
pkt->stream_index = ctx->a_id;
if (ret < 0)
return ret;
return 0;
case NUV_SEEKP:
// contains no data, size value is invalid
break;
default:
avio_skip(pb, size);
break;
}
}

return AVERROR(EIO);
}



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