From patchwork Mon Mar 30 12:57:07 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Liu Steven X-Patchwork-Id: 18513 Return-Path: X-Original-To: patchwork@ffaux-bg.ffmpeg.org Delivered-To: patchwork@ffaux-bg.ffmpeg.org Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org [79.124.17.100]) by ffaux.localdomain (Postfix) with ESMTP id 0A5114497F6 for ; Mon, 30 Mar 2020 15:57:57 +0300 (EEST) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id D07DA68AED6; Mon, 30 Mar 2020 15:57:56 +0300 (EEST) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from qq.com (smtpbg562.qq.com [183.3.255.174]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id B13CC68ABE7 for ; Mon, 30 Mar 2020 15:57:49 +0300 (EEST) X-QQ-mid: bizesmtp29t1585573031t1gwp4xi Received: from localhost (unknown [221.216.234.193]) by esmtp10.qq.com (ESMTP) with id ; Mon, 30 Mar 2020 20:57:09 +0800 (CST) X-QQ-SSF: 01100000002000K0ZTF0B00A0000000 X-QQ-FEAT: 4I5p1PuRj8ang0ZtKK1qjiq0K6AtuUdB48e1f+OjiIt3nTOWaIX24c5nhJUkM sWPUtsOY9Jkdu342mSSE0Qqd62meO6WpiaeKToLQBsG9pJkrVwt5rCiwuI1VBnyFBV8WqSm HSyl4wsVnqspGKhuWjgGm4njWG9qJIDdlKBOlMbEH7MPpL2dT296A/6RCRDnYzbUrDiXigN OeejMkx5b2KwzVNwQeNcd9vOnqW/TCuPKD42s02Eg/szda8eT/pTwncXh1g6XMJXSHzgL4h +PsORApFB3gSY90CkTaaUI69inZ+ZREmKHrjHhWQVfRkIBKJSSEmA7tgw= X-QQ-GoodBg: 0 From: Steven Liu To: ffmpeg-devel@ffmpeg.org Date: Mon, 30 Mar 2020 20:57:07 +0800 Message-Id: <20200330125707.9417-1-lq@chinaffmpeg.org> X-Mailer: git-send-email 2.25.0 MIME-Version: 1.0 X-QQ-SENDSIZE: 520 Feedback-ID: bizesmtp:chinaffmpeg.org:qybgforeign:qybgforeign6 X-QQ-Bgrelay: 1 Subject: [FFmpeg-devel] [PATCH] avformat/hlsenc: add hls_fmp4_init_refresh option X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches Cc: Steven Liu Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" add option for refresh init file after m3u8 refresh everytime. Signed-off-by: Steven Liu --- doc/muxers.texi | 3 +++ libavformat/hlsenc.c | 44 ++++++++++++++++++++++++++++++++++++++------ 2 files changed, 41 insertions(+), 6 deletions(-) diff --git a/doc/muxers.texi b/doc/muxers.texi index d304181671..fc38f40bc9 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_refresh @var{filename} +Refresh 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 a3c59432c5..6bc77ec17e 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 refresh_init_file; ///< refresh 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 @@ -982,7 +984,8 @@ static int sls_flag_check_duration_size(HLSContext *hls, VariantStream *vs) return ret; } -static void sls_flag_file_rename(HLSContext *hls, VariantStream *vs, char *old_filename) { +static void sls_flag_file_rename(HLSContext *hls, VariantStream *vs, char *old_filename) +{ if ((hls->flags & (HLS_SECOND_LEVEL_SEGMENT_SIZE | HLS_SECOND_LEVEL_SEGMENT_DURATION)) && strlen(vs->current_segment_final_filename_fmt)) { ff_rename(old_filename, vs->avf->url, hls); @@ -2234,6 +2237,25 @@ static int hls_write_header(AVFormatContext *s) return ret; } +static int hls_init_file_refresh(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); + if (ret < 0) { + av_dict_free(&options); + return ret; + } + avio_write(vs->out, vs->init_buffer, vs->init_range_length); + hlsenc_io_close(s, &vs->out, hls->fmp4_init_filename); + av_dict_free(&options); + + return ret; +} + static int hls_write_packet(AVFormatContext *s, AVPacket *pkt) { HLSContext *hls = s->priv_data; @@ -2246,7 +2268,6 @@ 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 +2353,10 @@ 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); + avio_write(vs->out, vs->init_buffer, range_length); + if (!hls->refresh_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 +2468,14 @@ static int hls_write_packet(AVFormatContext *s, AVPacket *pkt) } } + if (hls->refresh_init_file && hls->segment_type == SEGMENT_TYPE_FMP4) { + ret = hls_init_file_refresh(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 +2540,8 @@ static void hls_free_variant_streams(struct HLSContext *hls) } avformat_free_context(vs->avf); - + if (!hls->refresh_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 +3041,7 @@ 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_refresh", "refresh fragment mp4 init file after refresh m3u8 every time", OFFSET(refresh_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"},