> 2020年4月12日 下午9:38，Steven Liu <l...@chinaffmpeg.org> 写道：
>
>
>
>> 2020年4月7日 下午5:31，Steven Liu <l...@chinaffmpeg.org> 写道：
>>
>> add option for resend init file after m3u8 refresh everytime.
>>
>> Signed-off-by: Steven Liu <l...@chinaffmpeg.org>
>> ---
>> doc/muxers.texi | 3 +++
>> libavformat/hlsenc.c | 41 ++++++++++++++++++++++++++++++++++++-----
>> 2 files changed, 39 insertions(+), 5 deletions(-)
>>
>> diff --git a/doc/muxers.texi b/doc/muxers.texi
>> index d304181671..4ae9d2cda9 100644
>> --- a/doc/muxers.texi
>> +++ b/doc/muxers.texi
>> @@ -836,6 +836,9 @@ fmp4 files may be used in HLS version 7 and above.
>> @item hls_fmp4_init_filename @var{filename}
>> Set filename to the fragment files header file, default filename is
>> @file{init.mp4}.
>>
>> +@item hls_fmp4_init_resend @var{filename}
>> +Resend init file after m3u8 file refresh every time, default is @var{0}.
>> +
>> When @code{var_stream_map} is set with two or more variant streams, the
>> @var{filename} pattern must contain the string "%v", this string specifies
>> the position of variant stream index in the generated init file names.
>> diff --git a/libavformat/hlsenc.c b/libavformat/hlsenc.c
>> index b4c72b6e54..668439440c 100644
>> --- a/libavformat/hlsenc.c
>> +++ b/libavformat/hlsenc.c
>> @@ -119,6 +119,7 @@ typedef struct VariantStream {
>> int packets_written;
>> int init_range_length;
>> uint8_t *temp_buffer;
>> + uint8_t *init_buffer;
>>
>> AVFormatContext *avf;
>> AVFormatContext *vtt_avf;
>> @@ -192,6 +193,7 @@ typedef struct HLSContext {
>> char *segment_filename;
>> char *fmp4_init_filename;
>> int segment_type;
>> + int resend_init_file; ///< resend init file into disk after refresh
>> m3u8
>>
>> int use_localtime; ///< flag to expand filename with localtime
>> int use_localtime_mkdir;///< flag to mkdir dirname in timebased filename
>> @@ -2234,6 +2236,23 @@ static int hls_write_header(AVFormatContext *s)
>> return ret;
>> }
>>
>> +static int hls_init_file_resend(AVFormatContext *s, VariantStream *vs)
>> +{
>> + HLSContext *hls = s->priv_data;
>> + AVDictionary *options = NULL;
>> + int ret = 0;
>> +
>> + set_http_options(s, &options, hls);
>> + ret = hlsenc_io_open(s, &vs->out, hls->fmp4_init_filename, &options);
>> + av_dict_free(&options);
>> + if (ret < 0)
>> + return ret;
>> + avio_write(vs->out, vs->init_buffer, vs->init_range_length);
>> + hlsenc_io_close(s, &vs->out, hls->fmp4_init_filename);
>> +
>> + return ret;
>> +}
>> +
>> static int hls_write_packet(AVFormatContext *s, AVPacket *pkt)
>> {
>> HLSContext *hls = s->priv_data;
>> @@ -2246,7 +2265,6 @@ static int hls_write_packet(AVFormatContext *s,
>> AVPacket *pkt)
>> int range_length = 0;
>> const char *proto = NULL;
>> int use_temp_file = 0;
>> - uint8_t *buffer = NULL;
>> VariantStream *vs = NULL;
>> char *old_filename = NULL;
>>
>> @@ -2332,9 +2350,12 @@ static int hls_write_packet(AVFormatContext *s,
>> AVPacket *pkt)
>> avio_flush(oc->pb);
>> if (hls->segment_type == SEGMENT_TYPE_FMP4) {
>> if (!vs->init_range_length) {
>> - range_length = avio_close_dyn_buf(oc->pb, &buffer);
>> - avio_write(vs->out, buffer, range_length);
>> - av_freep(&buffer);
>> + range_length = avio_close_dyn_buf(oc->pb, &vs->init_buffer);
>> + if (range_length <= 0)
>> + return AVERROR(EINVAL);
>> + avio_write(vs->out, vs->init_buffer, range_length);
>> + if (!hls->resend_init_file)
>> + av_freep(&vs->init_buffer);
>> vs->init_range_length = range_length;
>> avio_open_dyn_buf(&oc->pb);
>> vs->packets_written = 0;
>> @@ -2446,6 +2467,14 @@ static int hls_write_packet(AVFormatContext *s,
>> AVPacket *pkt)
>> }
>> }
>>
>> + if (hls->resend_init_file && hls->segment_type ==
>> SEGMENT_TYPE_FMP4) {
>> + ret = hls_init_file_resend(s, vs);
>> + if (ret < 0) {
>> + av_freep(&old_filename);
>> + return ret;
>> + }
>> + }
>> +
>> if (hls->flags & HLS_SINGLE_FILE) {
>> vs->number++;
>> vs->start_pos += vs->size;
>> @@ -2510,7 +2539,8 @@ static void hls_free_variant_streams(struct HLSContext
>> *hls)
>> }
>>
>> avformat_free_context(vs->avf);
>> -
>> + if (hls->resend_init_file)
>> + av_freep(&vs->init_buffer);
>> hls_free_segments(vs->segments);
>> hls_free_segments(vs->old_segments);
>> av_freep(&vs->m3u8_name);
>> @@ -3010,6 +3040,7 @@ static const AVOption options[] = {
>> {"mpegts", "make segment file to mpegts files in m3u8", 0,
>> AV_OPT_TYPE_CONST, {.i64 = SEGMENT_TYPE_MPEGTS }, 0, UINT_MAX, E,
>> "segment_type"},
>> {"fmp4", "make segment file to fragment mp4 files in m3u8", 0,
>> AV_OPT_TYPE_CONST, {.i64 = SEGMENT_TYPE_FMP4 }, 0, UINT_MAX, E,
>> "segment_type"},
>> {"hls_fmp4_init_filename", "set fragment mp4 file init filename",
>> OFFSET(fmp4_init_filename), AV_OPT_TYPE_STRING, {.str = "init.mp4"},
>> 0, 0, E},
>> + {"hls_fmp4_init_resend", "resend fragment mp4 init file after refresh
>> m3u8 every time", OFFSET(resend_init_file), AV_OPT_TYPE_BOOL, {.i64 = 0 },
>> 0, 1, E },
>> {"hls_flags", "set flags affecting HLS playlist and media file
>> generation", OFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 0 }, 0, UINT_MAX, E,
>> "flags"},
>> {"single_file", "generate a single media file indexed with byte
>> ranges", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_SINGLE_FILE }, 0, UINT_MAX, E,
>> "flags"},
>> {"temp_file", "write segment and playlist to temporary file and rename
>> when complete", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_TEMP_FILE }, 0, UINT_MAX,
>> E, "flags"},
>> --
>> 2.25.0
>>
>
> ping
Pushed
Thanks
Steven Liu
_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
To unsubscribe, visit link above, or email
ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
