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Commit bb289571 authored by Jan Gerber's avatar Jan Gerber
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output valid json

parent 0b7479a2
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src/avinfo.c
View file @ bb289571
......@@ -65,18 +65,23 @@ enum {
JSON_FLOAT,
} JSON_TYPES;
void json_add_key_value(FILE *output, char *key, void *value, int type) {
void json_add_key_value(FILE *output, char *key, void *value, int type, int last) {
switch(type) {
case JSON_STRING:
fprintf(output, " \"%s\": \"%s\",\n", key, (char *)value);
fprintf(output, " \"%s\": \"%s\"", key, (char *)value);
break;
case JSON_INT:
fprintf(output, " \"%s\": %d,\n", key, *(int *)value);
fprintf(output, " \"%s\": %d", key, *(int *)value);
break;
case JSON_FLOAT:
fprintf(output, " \"%s\": %f,\n", key, *(float *)value);
fprintf(output, " \"%s\": %f", key, *(float *)value);
break;
}
if (last) {
fprintf(output, "\n");
} else {
fprintf(output, ",\n");
}
}
void json_codec_info(FILE *output, AVCodecContext *enc) {
......@@ -115,13 +120,13 @@ void json_codec_info(FILE *output, AVCodecContext *enc) {
switch(enc->codec_type) {
case CODEC_TYPE_VIDEO:
codec_name = fix_codec_name(codec_name);
json_add_key_value(output, "video_codec", (void *)codec_name, JSON_STRING);
json_add_key_value(output, "video_codec", (void *)codec_name, JSON_STRING, 0);
if (enc->pix_fmt != PIX_FMT_NONE) {
json_add_key_value(output, "pixel_format", (void *)avcodec_get_pix_fmt_name(enc->pix_fmt), JSON_STRING);
json_add_key_value(output, "pixel_format", (void *)avcodec_get_pix_fmt_name(enc->pix_fmt), JSON_STRING, 0);
}
if (enc->width) {
json_add_key_value(output, "width", &enc->width, JSON_INT);
json_add_key_value(output, "height", &enc->height, JSON_INT);
json_add_key_value(output, "width", &enc->width, JSON_INT, 0);
json_add_key_value(output, "height", &enc->height, JSON_INT, 0);
if (enc->sample_aspect_ratio.num) {
av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
enc->width*enc->sample_aspect_ratio.num,
......@@ -129,25 +134,25 @@ void json_codec_info(FILE *output, AVCodecContext *enc) {
1024*1024);
snprintf(buf1, sizeof(buf1), "%d:%d",
enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den);
json_add_key_value(output, "pixel_aspect_ratio", buf1, JSON_STRING);
json_add_key_value(output, "pixel_aspect_ratio", buf1, JSON_STRING, 0);
snprintf(buf1, sizeof(buf1), "%d:%d",
display_aspect_ratio.num, display_aspect_ratio.den);
json_add_key_value(output, "display_aspect_ratio", buf1, JSON_STRING);
json_add_key_value(output, "display_aspect_ratio", buf1, JSON_STRING, 0);
}
}
bitrate = enc->bit_rate;
if (bitrate != 0) {
float t = (float)bitrate / 1000;
json_add_key_value(output, "video_bitrate", &t, JSON_FLOAT);
json_add_key_value(output, "video_bitrate", &t, JSON_FLOAT, 0);
}
break;
case CODEC_TYPE_AUDIO:
codec_name = fix_codec_name(codec_name);
json_add_key_value(output, "audio_codec", (void *)codec_name, JSON_STRING);
json_add_key_value(output, "audio_codec", (void *)codec_name, JSON_STRING, 0);
if (enc->sample_rate) {
json_add_key_value(output, "samplerate", &enc->sample_rate, JSON_INT);
json_add_key_value(output, "samplerate", &enc->sample_rate, JSON_INT, 0);
}
json_add_key_value(output, "channels", &enc->channels, JSON_INT);
json_add_key_value(output, "channels", &enc->channels, JSON_INT, 0);
/* for PCM codecs, compute bitrate directly */
switch(enc->codec_id) {
......@@ -190,7 +195,7 @@ void json_codec_info(FILE *output, AVCodecContext *enc) {
}
if (bitrate != 0) {
float t = (float)bitrate / 1000;
json_add_key_value(output, "audio_bitrate", &t, JSON_FLOAT);
json_add_key_value(output, "audio_bitrate", &t, JSON_FLOAT, 0);
}
break;
/*
......@@ -234,20 +239,20 @@ static void json_stream_format(FILE *output, AVFormatContext *ic, int i) {
1024*1024);
snprintf(buf1, sizeof(buf1), "%d:%d",
st->sample_aspect_ratio.num, st->sample_aspect_ratio.den);
json_add_key_value(output, "pixel_aspect_ratio", buf1, JSON_STRING);
json_add_key_value(output, "pixel_aspect_ratio", buf1, JSON_STRING, 0);
snprintf(buf1, sizeof(buf1), "%d:%d",
display_aspect_ratio.num, display_aspect_ratio.den);
json_add_key_value(output, "display_aspect_ratio", buf1, JSON_STRING);
json_add_key_value(output, "display_aspect_ratio", buf1, JSON_STRING, 0);
}
if(st->codec->codec_type == CODEC_TYPE_VIDEO){
if (st->time_base.den && st->time_base.num && av_q2d(st->time_base) > 0.001) {
snprintf(buf1, sizeof(buf1), "%d:%d",
st->time_base.den, st->time_base.num);
json_add_key_value(output, "framerate", buf1, JSON_STRING);
json_add_key_value(output, "framerate", buf1, JSON_STRING, 0);
} else {
snprintf(buf1, sizeof(buf1), "%d:%d",
st->r_frame_rate.num, st->r_frame_rate.den);
json_add_key_value(output, "framerate", buf1, JSON_STRING);
json_add_key_value(output, "framerate", buf1, JSON_STRING, 0);
}
}
}
......@@ -258,21 +263,17 @@ void json_format_info(FILE* output, AVFormatContext *ic, const char *url) {
long filesize;
fprintf(output, "{\n");
json_add_key_value(output, "path", (void *)url, JSON_STRING);
filesize = get_filesize(url);
json_add_key_value(output, "size", &filesize, JSON_INT);
if (ic->duration != AV_NOPTS_VALUE) {
float secs;
secs = (float)ic->duration / AV_TIME_BASE;
json_add_key_value(output, "duration", &secs, JSON_FLOAT);
json_add_key_value(output, "duration", &secs, JSON_FLOAT, 0);
} else {
float t = -1;
json_add_key_value(output, "duration", &t, JSON_FLOAT);
json_add_key_value(output, "duration", &t, JSON_FLOAT, 0);
}
if (ic->bit_rate) {
float t = (float)ic->bit_rate / 1000;
json_add_key_value(output, "bitrate", &t, JSON_FLOAT);
json_add_key_value(output, "bitrate", &t, JSON_FLOAT, 0);
}
if(ic->nb_programs) {
......@@ -286,6 +287,9 @@ void json_format_info(FILE* output, AVFormatContext *ic, const char *url) {
json_stream_format(output, ic, i);
}
}
json_add_key_value(output, "path", (void *)url, JSON_STRING, 0);
filesize = get_filesize(url);
json_add_key_value(output, "size", &filesize, JSON_INT, 1);
fprintf(output, "}\n");
}
......
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