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ffmpeg.wasm-core
Commit 3ea06ac5 authored by Martin Storsjö's avatar Martin Storsjö
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smoothstreamingenc: Move the output_chunk_list and write_manifest functions up 

This allows calling write_manifest from ism_write_header without
a forward declaration.
Signed-off-by: 's avatarMartin Storsjö <martin@martin.st>
parent 5fa43f76
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Showing with 93 additions and 93 deletions
libavformat/smoothstreamingenc.c
View file @ 3ea06ac5
...@@ -186,6 +186,99 @@ static void ism_free(AVFormatContext *s) ...@@ -186,6 +186,99 @@ static void ism_free(AVFormatContext *s)
av_freep(&c->streams); av_freep(&c->streams);
} }
static void output_chunk_list(OutputStream *os, AVIOContext *out, int final, int skip, int window_size)
{
int removed = 0, i, start = 0;
if (os->nb_fragments <= 0)
return;
if (os->fragments[0]->n > 0)
removed = 1;
if (final)
skip = 0;
if (window_size)
start = FFMAX(os->nb_fragments - skip - window_size, 0);
for (i = start; i < os->nb_fragments - skip; i++) {
Fragment *frag = os->fragments[i];
if (!final || removed)
avio_printf(out, "<c t=\"%"PRIu64"\" d=\"%"PRIu64"\" />\n", frag->start_time, frag->duration);
else
avio_printf(out, "<c n=\"%d\" d=\"%"PRIu64"\" />\n", frag->n, frag->duration);
}
}
static int write_manifest(AVFormatContext *s, int final)
{
SmoothStreamingContext *c = s->priv_data;
AVIOContext *out;
char filename[1024];
int ret, i, video_chunks = 0, audio_chunks = 0, video_streams = 0, audio_streams = 0;
int64_t duration = 0;
snprintf(filename, sizeof(filename), "%s/Manifest", s->filename);
ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &s->interrupt_callback, NULL);
if (ret < 0)
return ret;
avio_printf(out, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
for (i = 0; i < s->nb_streams; i++) {
OutputStream *os = &c->streams[i];
if (os->nb_fragments > 0) {
Fragment *last = os->fragments[os->nb_fragments - 1];
duration = last->start_time + last->duration;
}
if (s->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
video_chunks = os->nb_fragments;
video_streams++;
} else {
audio_chunks = os->nb_fragments;
audio_streams++;
}
}
if (!final) {
duration = 0;
video_chunks = audio_chunks = 0;
}
if (c->window_size) {
video_chunks = FFMIN(video_chunks, c->window_size);
audio_chunks = FFMIN(audio_chunks, c->window_size);
}
avio_printf(out, "<SmoothStreamingMedia MajorVersion=\"2\" MinorVersion=\"0\" Duration=\"%"PRIu64"\"", duration);
if (!final)
avio_printf(out, " IsLive=\"true\" LookAheadFragmentCount=\"%d\" DVRWindowLength=\"0\"", c->lookahead_count);
avio_printf(out, ">\n");
if (c->has_video) {
int last = -1, index = 0;
avio_printf(out, "<StreamIndex Type=\"video\" QualityLevels=\"%d\" Chunks=\"%d\" Url=\"QualityLevels({bitrate})/Fragments(video={start time})\">\n", video_streams, video_chunks);
for (i = 0; i < s->nb_streams; i++) {
OutputStream *os = &c->streams[i];
if (s->streams[i]->codec->codec_type != AVMEDIA_TYPE_VIDEO)
continue;
last = i;
avio_printf(out, "<QualityLevel Index=\"%d\" Bitrate=\"%d\" FourCC=\"%s\" MaxWidth=\"%d\" MaxHeight=\"%d\" CodecPrivateData=\"%s\" />\n", index, s->streams[i]->codec->bit_rate, os->fourcc, s->streams[i]->codec->width, s->streams[i]->codec->height, os->private_str);
index++;
}
output_chunk_list(&c->streams[last], out, final, c->lookahead_count, c->window_size);
avio_printf(out, "</StreamIndex>\n");
}
if (c->has_audio) {
int last = -1, index = 0;
avio_printf(out, "<StreamIndex Type=\"audio\" QualityLevels=\"%d\" Chunks=\"%d\" Url=\"QualityLevels({bitrate})/Fragments(audio={start time})\">\n", audio_streams, audio_chunks);
for (i = 0; i < s->nb_streams; i++) {
OutputStream *os = &c->streams[i];
if (s->streams[i]->codec->codec_type != AVMEDIA_TYPE_AUDIO)
continue;
last = i;
avio_printf(out, "<QualityLevel Index=\"%d\" Bitrate=\"%d\" FourCC=\"%s\" SamplingRate=\"%d\" Channels=\"%d\" BitsPerSample=\"16\" PacketSize=\"%d\" AudioTag=\"%d\" CodecPrivateData=\"%s\" />\n", index, s->streams[i]->codec->bit_rate, os->fourcc, s->streams[i]->codec->sample_rate, s->streams[i]->codec->channels, os->packet_size, os->audio_tag, os->private_str);
index++;
}
output_chunk_list(&c->streams[last], out, final, c->lookahead_count, c->window_size);
avio_printf(out, "</StreamIndex>\n");
}
avio_printf(out, "</SmoothStreamingMedia>\n");
avio_flush(out);
avio_close(out);
return 0;
}
static int ism_write_header(AVFormatContext *s) static int ism_write_header(AVFormatContext *s)
{ {
SmoothStreamingContext *c = s->priv_data; SmoothStreamingContext *c = s->priv_data;
...@@ -401,99 +494,6 @@ static int copy_moof(AVFormatContext *s, const char* infile, const char *outfile ...@@ -401,99 +494,6 @@ static int copy_moof(AVFormatContext *s, const char* infile, const char *outfile
return ret; return ret;
} }
static void output_chunk_list(OutputStream *os, AVIOContext *out, int final, int skip, int window_size)
{
int removed = 0, i, start = 0;
if (os->nb_fragments <= 0)
return;
if (os->fragments[0]->n > 0)
removed = 1;
if (final)
skip = 0;
if (window_size)
start = FFMAX(os->nb_fragments - skip - window_size, 0);
for (i = start; i < os->nb_fragments - skip; i++) {
Fragment *frag = os->fragments[i];
if (!final || removed)
avio_printf(out, "<c t=\"%"PRIu64"\" d=\"%"PRIu64"\" />\n", frag->start_time, frag->duration);
else
avio_printf(out, "<c n=\"%d\" d=\"%"PRIu64"\" />\n", frag->n, frag->duration);
}
}
static int write_manifest(AVFormatContext *s, int final)
{
SmoothStreamingContext *c = s->priv_data;
AVIOContext *out;
char filename[1024];
int ret, i, video_chunks = 0, audio_chunks = 0, video_streams = 0, audio_streams = 0;
int64_t duration = 0;
snprintf(filename, sizeof(filename), "%s/Manifest", s->filename);
ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &s->interrupt_callback, NULL);
if (ret < 0)
return ret;
avio_printf(out, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
for (i = 0; i < s->nb_streams; i++) {
OutputStream *os = &c->streams[i];
if (os->nb_fragments > 0) {
Fragment *last = os->fragments[os->nb_fragments - 1];
duration = last->start_time + last->duration;
}
if (s->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
video_chunks = os->nb_fragments;
video_streams++;
} else {
audio_chunks = os->nb_fragments;
audio_streams++;
}
}
if (!final) {
duration = 0;
video_chunks = audio_chunks = 0;
}
if (c->window_size) {
video_chunks = FFMIN(video_chunks, c->window_size);
audio_chunks = FFMIN(audio_chunks, c->window_size);
}
avio_printf(out, "<SmoothStreamingMedia MajorVersion=\"2\" MinorVersion=\"0\" Duration=\"%"PRIu64"\"", duration);
if (!final)
avio_printf(out, " IsLive=\"true\" LookAheadFragmentCount=\"%d\" DVRWindowLength=\"0\"", c->lookahead_count);
avio_printf(out, ">\n");
if (c->has_video) {
int last = -1, index = 0;
avio_printf(out, "<StreamIndex Type=\"video\" QualityLevels=\"%d\" Chunks=\"%d\" Url=\"QualityLevels({bitrate})/Fragments(video={start time})\">\n", video_streams, video_chunks);
for (i = 0; i < s->nb_streams; i++) {
OutputStream *os = &c->streams[i];
if (s->streams[i]->codec->codec_type != AVMEDIA_TYPE_VIDEO)
continue;
last = i;
avio_printf(out, "<QualityLevel Index=\"%d\" Bitrate=\"%d\" FourCC=\"%s\" MaxWidth=\"%d\" MaxHeight=\"%d\" CodecPrivateData=\"%s\" />\n", index, s->streams[i]->codec->bit_rate, os->fourcc, s->streams[i]->codec->width, s->streams[i]->codec->height, os->private_str);
index++;
}
output_chunk_list(&c->streams[last], out, final, c->lookahead_count, c->window_size);
avio_printf(out, "</StreamIndex>\n");
}
if (c->has_audio) {
int last = -1, index = 0;
avio_printf(out, "<StreamIndex Type=\"audio\" QualityLevels=\"%d\" Chunks=\"%d\" Url=\"QualityLevels({bitrate})/Fragments(audio={start time})\">\n", audio_streams, audio_chunks);
for (i = 0; i < s->nb_streams; i++) {
OutputStream *os = &c->streams[i];
if (s->streams[i]->codec->codec_type != AVMEDIA_TYPE_AUDIO)
continue;
last = i;
avio_printf(out, "<QualityLevel Index=\"%d\" Bitrate=\"%d\" FourCC=\"%s\" SamplingRate=\"%d\" Channels=\"%d\" BitsPerSample=\"16\" PacketSize=\"%d\" AudioTag=\"%d\" CodecPrivateData=\"%s\" />\n", index, s->streams[i]->codec->bit_rate, os->fourcc, s->streams[i]->codec->sample_rate, s->streams[i]->codec->channels, os->packet_size, os->audio_tag, os->private_str);
index++;
}
output_chunk_list(&c->streams[last], out, final, c->lookahead_count, c->window_size);
avio_printf(out, "</StreamIndex>\n");
}
avio_printf(out, "</SmoothStreamingMedia>\n");
avio_flush(out);
avio_close(out);
return 0;
}
static int ism_flush(AVFormatContext *s, int final) static int ism_flush(AVFormatContext *s, int final)
{ {
SmoothStreamingContext *c = s->priv_data; SmoothStreamingContext *c = s->priv_data;
......
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